Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge branch 'samsung/driver' into next/drivers

Browse source 
Conflicts:
	arch/arm/mach-mxs/include/mach/common.h

Pull in previous samsung conflict merges and do a trivial
merge of an mxs double-add conflict.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2012-01-09 16:16:29 +00:00
commit dcf7ec5ee6
1271 changed files with 12339 additions and 12749 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
Documentation/arm/memory.txt
View file

@ -51,15 +51,14 @@ ffc00000 ffefffff DMA memory mapping region. Memory returned
ff000000 ffbfffff Reserved for future expansion of DMA
mapping region.
VMALLOC_END feffffff Free for platform use, recommended.
VMALLOC_END must be aligned to a 2MB
boundary.
VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space.
Memory returned by vmalloc/ioremap will
be dynamically placed in this region.
VMALLOC_START may be based upon the value
of the high_memory variable.
Machine specific static mappings are also
located here through iotable_init().
VMALLOC_START is based upon the value
of the high_memory variable, and VMALLOC_END
is equal to 0xff000000.
PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region.
This maps the platforms RAM, and typically

4
Documentation/devicetree/bindings/arm/gic.txt
View file

@ -42,6 +42,10 @@ Optional
- interrupts : Interrupt source of the parent interrupt controller. Only
present on secondary GICs.
- cpu-offset : per-cpu offset within the distributor and cpu interface
regions, used when the GIC doesn't have banked registers. The offset is
cpu-offset * cpu-nr.
Example:
intc: interrupt-controller@fff11000 {

29
Documentation/devicetree/bindings/arm/vic.txt Normal file
View file

@ -0,0 +1,29 @@
* ARM Vectored Interrupt Controller
One or more Vectored Interrupt Controllers (VIC's) can be connected in an ARM
system for interrupt routing. For multiple controllers they can either be
nested or have the outputs wire-OR'd together.
Required properties:
- compatible : should be one of
"arm,pl190-vic"
"arm,pl192-vic"
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells : The number of cells to define the interrupts. Must be 1 as
the VIC has no configuration options for interrupt sources. The cell is a u32
and defines the interrupt number.
- reg : The register bank for the VIC.
Optional properties:
- interrupts : Interrupt source for parent controllers if the VIC is nested.
Example:
vic0: interrupt-controller@60000 {
compatible = "arm,pl192-vic";
interrupt-controller;
#interrupt-cells = <1>;
reg = <0x60000 0x1000>;
};

16
Documentation/virtual/kvm/api.txt
View file

@ -1100,6 +1100,15 @@ emulate them efficiently. The fields in each entry are defined as follows:
eax, ebx, ecx, edx: the values returned by the cpuid instruction for
this function/index combination
The TSC deadline timer feature (CPUID leaf 1, ecx[24]) is always returned
as false, since the feature depends on KVM_CREATE_IRQCHIP for local APIC
support. Instead it is reported via
ioctl(KVM_CHECK_EXTENSION, KVM_CAP_TSC_DEADLINE_TIMER)
if that returns true and you use KVM_CREATE_IRQCHIP, or if you emulate the
feature in userspace, then you can enable the feature for KVM_SET_CPUID2.
4.47 KVM_PPC_GET_PVINFO
Capability: KVM_CAP_PPC_GET_PVINFO
@ -1151,6 +1160,13 @@ following flags are specified:
/* Depends on KVM_CAP_IOMMU */
#define KVM_DEV_ASSIGN_ENABLE_IOMMU (1 << 0)
The KVM_DEV_ASSIGN_ENABLE_IOMMU flag is a mandatory option to ensure
isolation of the device. Usages not specifying this flag are deprecated.
Only PCI header type 0 devices with PCI BAR resources are supported by
device assignment. The user requesting this ioctl must have read/write
access to the PCI sysfs resource files associated with the device.
4.49 KVM_DEASSIGN_PCI_DEVICE
Capability: KVM_CAP_DEVICE_DEASSIGNMENT

33
MAINTAINERS
View file

@ -1124,13 +1124,6 @@ S: Supported
F: arch/arm/mach-shmobile/
F: drivers/sh/
ARM/TELECHIPS ARM ARCHITECTURE
M: "Hans J. Koch" <hjk@hansjkoch.de>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/plat-tcc/
F: arch/arm/mach-tcc8k/
ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@ -2700,7 +2693,7 @@ FIREWIRE SUBSYSTEM
M: Stefan Richter <stefanr@s5r6.in-berlin.de>
L: linux1394-devel@lists.sourceforge.net
W: http://ieee1394.wiki.kernel.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394.git
S: Maintained
F: drivers/firewire/
F: include/linux/firewire*.h
@ -3101,6 +3094,7 @@ F: include/linux/hid*
HIGH-RESOLUTION TIMERS, CLOCKEVENTS, DYNTICKS
M: Thomas Gleixner <tglx@linutronix.de>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
S: Maintained
F: Documentation/timers/
F: kernel/hrtimer.c
@ -3610,7 +3604,7 @@ F: net/irda/
IRQ SUBSYSTEM
M: Thomas Gleixner <tglx@linutronix.de>
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git irq/core
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
F: kernel/irq/
ISAPNP
@ -4098,7 +4092,7 @@ F: drivers/hwmon/lm90.c
LOCKDEP AND LOCKSTAT
M: Peter Zijlstra <peterz@infradead.org>
M: Ingo Molnar <mingo@redhat.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core/locking
S: Maintained
F: Documentation/lockdep*.txt
F: Documentation/lockstat.txt
@ -4280,7 +4274,9 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
F: Documentation/dvb/
F: Documentation/video4linux/
F: Documentation/DocBook/media/
F: drivers/media/
F: drivers/staging/media/
F: include/media/
F: include/linux/dvb/
F: include/linux/videodev*.h
@ -5086,6 +5082,7 @@ M: Peter Zijlstra <a.p.zijlstra@chello.nl>
M: Paul Mackerras <paulus@samba.org>
M: Ingo Molnar <mingo@elte.hu>
M: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
S: Supported
F: kernel/events/*
F: include/linux/perf_event.h
@ -5117,6 +5114,15 @@ L: linux-mtd@lists.infradead.org
S: Maintained
F: drivers/mtd/devices/phram.c
PICOXCELL SUPPORT
M: Jamie Iles <jamie@jamieiles.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
T: git git://github.com/jamieiles/linux-2.6-ji.git
S: Supported
F: arch/arm/mach-picoxcell
F: drivers/*/picoxcell*
F: drivers/*/*/picoxcell*
PIN CONTROL SUBSYSTEM
M: Linus Walleij <linus.walleij@linaro.org>
S: Maintained
@ -5165,6 +5171,7 @@ F: drivers/scsi/pm8001/
POSIX CLOCKS and TIMERS
M: Thomas Gleixner <tglx@linutronix.de>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
S: Supported
F: fs/timerfd.c
F: include/linux/timer*
@ -5680,6 +5687,7 @@ F: drivers/dma/dw_dmac.c
TIMEKEEPING, NTP
M: John Stultz <johnstul@us.ibm.com>
M: Thomas Gleixner <tglx@linutronix.de>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
S: Supported
F: include/linux/clocksource.h
F: include/linux/time.h
@ -5704,6 +5712,7 @@ F: drivers/watchdog/sc1200wdt.c
SCHEDULER
M: Ingo Molnar <mingo@elte.hu>
M: Peter Zijlstra <peterz@infradead.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
S: Maintained
F: kernel/sched*
F: include/linux/sched.h
@ -6631,7 +6640,7 @@ TRACING
M: Steven Rostedt <rostedt@goodmis.org>
M: Frederic Weisbecker <fweisbec@gmail.com>
M: Ingo Molnar <mingo@redhat.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git perf/core
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
S: Maintained
F: Documentation/trace/ftrace.txt
F: arch/*/*/*/ftrace.h
@ -7381,7 +7390,7 @@ M: Thomas Gleixner <tglx@linutronix.de>
M: Ingo Molnar <mingo@redhat.com>
M: "H. Peter Anvin" <hpa@zytor.com>
M: x86@kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
S: Maintained
F: Documentation/x86/
F: arch/x86/

2
Makefile
View file

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 2
SUBLEVEL = 0
EXTRAVERSION = -rc6
EXTRAVERSION = -rc7
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*

64
arch/arm/Kconfig
View file

@ -258,6 +258,7 @@ config ARCH_INTEGRATOR
select ARCH_HAS_CPUFREQ
select CLKDEV_LOOKUP
select HAVE_MACH_CLKDEV
select HAVE_TCM
select ICST
select GENERIC_CLOCKEVENTS
select PLAT_VERSATILE
@ -341,10 +342,12 @@ config ARCH_HIGHBANK
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
select CACHE_L2X0
select CLKDEV_LOOKUP
select CPU_V7
select GENERIC_CLOCKEVENTS
select HAVE_ARM_SCU
select HAVE_SMP
select USE_OF
help
Support for the Calxeda Highbank SoC based boards.
@ -362,6 +365,7 @@ config ARCH_CNS3XXX
select CPU_V6K
select GENERIC_CLOCKEVENTS
select ARM_GIC
select MIGHT_HAVE_CACHE_L2X0
select MIGHT_HAVE_PCI
select PCI_DOMAINS if PCI
help
@ -382,6 +386,7 @@ config ARCH_PRIMA2
select GENERIC_CLOCKEVENTS
select CLKDEV_LOOKUP
select GENERIC_IRQ_CHIP
select MIGHT_HAVE_CACHE_L2X0
select USE_OF
select ZONE_DMA
help
@ -635,6 +640,8 @@ config ARCH_TEGRA
select GENERIC_GPIO
select HAVE_CLK
select HAVE_SCHED_CLOCK
select HAVE_SMP
select MIGHT_HAVE_CACHE_L2X0
select ARCH_HAS_CPUFREQ
help
This enables support for NVIDIA Tegra based systems (Tegra APX,
@ -652,6 +659,7 @@ config ARCH_PICOXCELL
select HAVE_SCHED_CLOCK
select HAVE_TCM
select NO_IOPORT
select SPARSE_IRQ
select USE_OF
help
This enables support for systems based on the Picochip picoXcell
@ -705,7 +713,9 @@ config ARCH_SHMOBILE
select HAVE_CLK
select CLKDEV_LOOKUP
select HAVE_MACH_CLKDEV
select HAVE_SMP
select GENERIC_CLOCKEVENTS
select MIGHT_HAVE_CACHE_L2X0
select NO_IOPORT
select SPARSE_IRQ
select MULTI_IRQ_HANDLER
@ -870,16 +880,6 @@ config ARCH_SHARK
Support for the StrongARM based Digital DNARD machine, also known
as "Shark" (<http://www.shark-linux.de/shark.html>).
config ARCH_TCC_926
bool "Telechips TCC ARM926-based systems"
select CLKSRC_MMIO
select CPU_ARM926T
select HAVE_CLK
select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
help
Support for Telechips TCC ARM926-based systems.
config ARCH_U300
bool "ST-Ericsson U300 Series"
depends on MMU
@ -895,7 +895,6 @@ config ARCH_U300
select HAVE_MACH_CLKDEV
select GENERIC_GPIO
select ARCH_REQUIRE_GPIOLIB
select NEED_MACH_MEMORY_H
help
Support for ST-Ericsson U300 series mobile platforms.
@ -907,6 +906,8 @@ config ARCH_U8500
select CLKDEV_LOOKUP
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_CPUFREQ
select HAVE_SMP
select MIGHT_HAVE_CACHE_L2X0
help
Support for ST-Ericsson's Ux500 architecture
@ -917,6 +918,7 @@ config ARCH_NOMADIK
select CPU_ARM926T
select CLKDEV_LOOKUP
select GENERIC_CLOCKEVENTS
select MIGHT_HAVE_CACHE_L2X0
select ARCH_REQUIRE_GPIOLIB
help
Support for the Nomadik platform by ST-Ericsson
@ -976,6 +978,7 @@ config ARCH_ZYNQ
select ARM_GIC
select ARM_AMBA
select ICST
select MIGHT_HAVE_CACHE_L2X0
select USE_OF
help
Support for Xilinx Zynq ARM Cortex A9 Platform
@ -1062,8 +1065,6 @@ source "arch/arm/plat-s5p/Kconfig"
source "arch/arm/plat-spear/Kconfig"
source "arch/arm/plat-tcc/Kconfig"
if ARCH_S3C2410
source "arch/arm/mach-s3c2410/Kconfig"
source "arch/arm/mach-s3c2412/Kconfig"
@ -1128,6 +1129,11 @@ config ARM_TIMER_SP804
source arch/arm/mm/Kconfig
config ARM_NR_BANKS
int
default 16 if ARCH_EP93XX
default 8
config IWMMXT
bool "Enable iWMMXt support"
depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
@ -1248,7 +1254,7 @@ config PL310_ERRATA_588369
config ARM_ERRATA_720789
bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
depends on CPU_V7 && SMP
depends on CPU_V7
help
This option enables the workaround for the 720789 Cortex-A9 (prior to
r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
@ -1284,7 +1290,7 @@ config ARM_ERRATA_743622
config ARM_ERRATA_751472
bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
depends on CPU_V7 && SMP
depends on CPU_V7
help
This option enables the workaround for the 751472 Cortex-A9 (prior
to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
@ -1437,14 +1443,20 @@ menu "Kernel Features"
source "kernel/time/Kconfig"
config HAVE_SMP
bool
help
This option should be selected by machines which have an SMP-
capable CPU.
The only effect of this option is to make the SMP-related
options available to the user for configuration.
config SMP
bool "Symmetric Multi-Processing"
depends on CPU_V6K || CPU_V7
depends on GENERIC_CLOCKEVENTS
depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
ARCH_EXYNOS4 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE || ARCH_HIGHBANK || SOC_IMX6Q
depends on HAVE_SMP
depends on MMU
select USE_GENERIC_SMP_HELPERS
select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
@ -1562,6 +1574,16 @@ config LOCAL_TIMERS
accounting to be spread across the timer interval, preventing a
"thundering herd" at every timer tick.
config ARCH_NR_GPIO
int
default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
default 350 if ARCH_U8500
default 0
help
Maximum number of GPIOs in the system.
If unsure, leave the default value.
source kernel/Kconfig.preempt
config HZ
@ -1974,7 +1996,7 @@ endchoice
config XIP_KERNEL
bool "Kernel Execute-In-Place from ROM"
depends on !ZBOOT_ROM
depends on !ZBOOT_ROM && !ARM_LPAE
help
Execute-In-Place allows the kernel to run from non-volatile storage
directly addressable by the CPU, such as NOR flash. This saves RAM
@ -2004,7 +2026,7 @@ config XIP_PHYS_ADDR
config KEXEC
bool "Kexec system call (EXPERIMENTAL)"
depends on EXPERIMENTAL
depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot

45
arch/arm/Kconfig.debug
View file

@ -100,6 +100,14 @@ choice
Note that the system will appear to hang during boot if there
is nothing connected to read from the DCC.
config AT91_DEBUG_LL_DBGU0
bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
depends on HAVE_AT91_DBGU0
config AT91_DEBUG_LL_DBGU1
bool "Kernel low-level debugging on 9263, 9g45 and cap9"
depends on HAVE_AT91_DBGU1
config DEBUG_FOOTBRIDGE_COM1
bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
depends on FOOTBRIDGE
@ -247,6 +255,43 @@ choice
their output to the standard serial port on the RealView
PB1176 platform.
config DEBUG_MSM_UART1
bool "Kernel low-level debugging messages via MSM UART1"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
help
Say Y here if you want the debug print routines to direct
their output to the first serial port on MSM devices.
config DEBUG_MSM_UART2
bool "Kernel low-level debugging messages via MSM UART2"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
help
Say Y here if you want the debug print routines to direct
their output to the second serial port on MSM devices.
config DEBUG_MSM_UART3
bool "Kernel low-level debugging messages via MSM UART3"
depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
help
Say Y here if you want the debug print routines to direct
their output to the third serial port on MSM devices.
config DEBUG_MSM8660_UART
bool "Kernel low-level debugging messages via MSM 8660 UART"
depends on ARCH_MSM8X60
select MSM_HAS_DEBUG_UART_HS
help
Say Y here if you want the debug print routines to direct
their output to the serial port on MSM 8660 devices.
config DEBUG_MSM8960_UART
bool "Kernel low-level debugging messages via MSM 8960 UART"
depends on ARCH_MSM8960
select MSM_HAS_DEBUG_UART_HS
help
Say Y here if you want the debug print routines to direct
their output to the serial port on MSM 8960 devices.
endchoice
config EARLY_PRINTK

2
arch/arm/Makefile
View file

@ -184,7 +184,6 @@ machine-$(CONFIG_ARCH_EXYNOS4) := exynos
machine-$(CONFIG_ARCH_SA1100) := sa1100
machine-$(CONFIG_ARCH_SHARK) := shark
machine-$(CONFIG_ARCH_SHMOBILE) := shmobile
machine-$(CONFIG_ARCH_TCC8K) := tcc8k
machine-$(CONFIG_ARCH_TEGRA) := tegra
machine-$(CONFIG_ARCH_U300) := u300
machine-$(CONFIG_ARCH_U8500) := ux500
@ -204,7 +203,6 @@ machine-$(CONFIG_ARCH_ZYNQ) := zynq
plat-$(CONFIG_ARCH_MXC) := mxc
plat-$(CONFIG_ARCH_OMAP) := omap
plat-$(CONFIG_ARCH_S3C64XX) := samsung
plat-$(CONFIG_ARCH_TCC_926) := tcc
plat-$(CONFIG_ARCH_ZYNQ) := versatile
plat-$(CONFIG_PLAT_IOP) := iop
plat-$(CONFIG_PLAT_NOMADIK) := nomadik

3
arch/arm/boot/compressed/Makefile
View file

@ -126,7 +126,8 @@ ccflags-y := -fpic -fno-builtin -I$(obj)
asflags-y := -Wa,-march=all
# Supply kernel BSS size to the decompressor via a linker symbol.
KBSS_SZ = $(shell size $(obj)/../../../../vmlinux | awk 'END{print $$3}')
KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
awk 'END{print $$3}')
LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
# Supply ZRELADDR to the decompressor via a linker symbol.
ifneq ($(CONFIG_AUTO_ZRELADDR),y)

1
arch/arm/boot/compressed/head.S
View file

@ -659,6 +659,7 @@ __armv7_mmu_cache_on:
mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer
mcrne p15, 0, r1, c3, c0, 0 @ load domain access control
#endif
mcr p15, 0, r0, c7, c5, 4 @ ISB
mcr p15, 0, r0, c1, c0, 0 @ load control register
mrc p15, 0, r0, c1, c0, 0 @ and read it back
mov r0, #0

6
arch/arm/common/Kconfig
View file

@ -1,8 +1,14 @@
config ARM_GIC
select IRQ_DOMAIN
select MULTI_IRQ_HANDLER
bool
config GIC_NON_BANKED
bool
config ARM_VIC
select IRQ_DOMAIN
select MULTI_IRQ_HANDLER
bool
config ARM_VIC_NR

165
arch/arm/common/gic.c
View file

@ -40,13 +40,36 @@
#include <linux/slab.h>
#include <asm/irq.h>
#include <asm/exception.h>
#include <asm/mach/irq.h>
#include <asm/hardware/gic.h>
static DEFINE_RAW_SPINLOCK(irq_controller_lock);
union gic_base {
void __iomem *common_base;
void __percpu __iomem **percpu_base;
};
/* Address of GIC 0 CPU interface */
void __iomem *gic_cpu_base_addr __read_mostly;
struct gic_chip_data {
unsigned int irq_offset;
union gic_base dist_base;
union gic_base cpu_base;
#ifdef CONFIG_CPU_PM
u32 saved_spi_enable[DIV_ROUND_UP(1020, 32)];
u32 saved_spi_conf[DIV_ROUND_UP(1020, 16)];
u32 saved_spi_target[DIV_ROUND_UP(1020, 4)];
u32 __percpu *saved_ppi_enable;
u32 __percpu *saved_ppi_conf;
#endif
#ifdef CONFIG_IRQ_DOMAIN
struct irq_domain domain;
#endif
unsigned int gic_irqs;
#ifdef CONFIG_GIC_NON_BANKED
void __iomem *(*get_base)(union gic_base *);
#endif
};
static DEFINE_RAW_SPINLOCK(irq_controller_lock);
/*
* Supported arch specific GIC irq extension.
@ -67,16 +90,48 @@ struct irq_chip gic_arch_extn = {
static struct gic_chip_data gic_data[MAX_GIC_NR] __read_mostly;
#ifdef CONFIG_GIC_NON_BANKED
static void __iomem *gic_get_percpu_base(union gic_base *base)
{
return *__this_cpu_ptr(base->percpu_base);
}
static void __iomem *gic_get_common_base(union gic_base *base)
{
return base->common_base;
}
static inline void __iomem *gic_data_dist_base(struct gic_chip_data *data)
{
return data->get_base(&data->dist_base);
}
static inline void __iomem *gic_data_cpu_base(struct gic_chip_data *data)
{
return data->get_base(&data->cpu_base);
}
static inline void gic_set_base_accessor(struct gic_chip_data *data,
void __iomem *(*f)(union gic_base *))
{
data->get_base = f;
}
#else
#define gic_data_dist_base(d) ((d)->dist_base.common_base)
#define gic_data_cpu_base(d) ((d)->cpu_base.common_base)
#define gic_set_base_accessor(d,f)
#endif
static inline void __iomem *gic_dist_base(struct irq_data *d)
{
struct gic_chip_data *gic_data = irq_data_get_irq_chip_data(d);
return gic_data->dist_base;
return gic_data_dist_base(gic_data);
}
static inline void __iomem *gic_cpu_base(struct irq_data *d)
{
struct gic_chip_data *gic_data = irq_data_get_irq_chip_data(d);
return gic_data->cpu_base;
return gic_data_cpu_base(gic_data);
}
static inline unsigned int gic_irq(struct irq_data *d)
@ -215,6 +270,32 @@ static int gic_set_wake(struct irq_data *d, unsigned int on)
#define gic_set_wake NULL
#endif
asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
{
u32 irqstat, irqnr;
struct gic_chip_data *gic = &gic_data[0];
void __iomem *cpu_base = gic_data_cpu_base(gic);
do {
irqstat = readl_relaxed(cpu_base + GIC_CPU_INTACK);
irqnr = irqstat & ~0x1c00;
if (likely(irqnr > 15 && irqnr < 1021)) {
irqnr = irq_domain_to_irq(&gic->domain, irqnr);
handle_IRQ(irqnr, regs);
continue;
}
if (irqnr < 16) {
writel_relaxed(irqstat, cpu_base + GIC_CPU_EOI);
#ifdef CONFIG_SMP
handle_IPI(irqnr, regs);
#endif
continue;
}
break;
} while (1);
}
static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
{
struct gic_chip_data *chip_data = irq_get_handler_data(irq);
@ -225,7 +306,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
chained_irq_enter(chip, desc);
raw_spin_lock(&irq_controller_lock);
status = readl_relaxed(chip_data->cpu_base + GIC_CPU_INTACK);
status = readl_relaxed(gic_data_cpu_base(chip_data) + GIC_CPU_INTACK);
raw_spin_unlock(&irq_controller_lock);
gic_irq = (status & 0x3ff);
@ -270,7 +351,7 @@ static void __init gic_dist_init(struct gic_chip_data *gic)
u32 cpumask;
unsigned int gic_irqs = gic->gic_irqs;
struct irq_domain *domain = &gic->domain;
void __iomem *base = gic->dist_base;
void __iomem *base = gic_data_dist_base(gic);
u32 cpu = 0;
#ifdef CONFIG_SMP
@ -330,8 +411,8 @@ static void __init gic_dist_init(struct gic_chip_data *gic)
static void __cpuinit gic_cpu_init(struct gic_chip_data *gic)
{
void __iomem *dist_base = gic->dist_base;
void __iomem *base = gic->cpu_base;
void __iomem *dist_base = gic_data_dist_base(gic);
void __iomem *base = gic_data_cpu_base(gic);
int i;
/*
@ -368,7 +449,7 @@ static void gic_dist_save(unsigned int gic_nr)
BUG();
gic_irqs = gic_data[gic_nr].gic_irqs;
dist_base = gic_data[gic_nr].dist_base;
dist_base = gic_data_dist_base(&gic_data[gic_nr]);
if (!dist_base)
return;
@ -403,7 +484,7 @@ static void gic_dist_restore(unsigned int gic_nr)
BUG();
gic_irqs = gic_data[gic_nr].gic_irqs;
dist_base = gic_data[gic_nr].dist_base;
dist_base = gic_data_dist_base(&gic_data[gic_nr]);
if (!dist_base)
return;
@ -439,8 +520,8 @@ static void gic_cpu_save(unsigned int gic_nr)
if (gic_nr >= MAX_GIC_NR)
BUG();
dist_base = gic_data[gic_nr].dist_base;
cpu_base = gic_data[gic_nr].cpu_base;
dist_base = gic_data_dist_base(&gic_data[gic_nr]);
cpu_base = gic_data_cpu_base(&gic_data[gic_nr]);
if (!dist_base || !cpu_base)
return;
@ -465,8 +546,8 @@ static void gic_cpu_restore(unsigned int gic_nr)
if (gic_nr >= MAX_GIC_NR)
BUG();
dist_base = gic_data[gic_nr].dist_base;
cpu_base = gic_data[gic_nr].cpu_base;
dist_base = gic_data_dist_base(&gic_data[gic_nr]);
cpu_base = gic_data_cpu_base(&gic_data[gic_nr]);
if (!dist_base || !cpu_base)
return;
@ -491,6 +572,11 @@ static int gic_notifier(struct notifier_block *self, unsigned long cmd, void *v)
int i;
for (i = 0; i < MAX_GIC_NR; i++) {
#ifdef CONFIG_GIC_NON_BANKED
/* Skip over unused GICs */
if (!gic_data[i].get_base)
continue;
#endif
switch (cmd) {
case CPU_PM_ENTER:
gic_cpu_save(i);
@ -564,8 +650,9 @@ const struct irq_domain_ops gic_irq_domain_ops = {
#endif
};
void __init gic_init(unsigned int gic_nr, int irq_start,
void __iomem *dist_base, void __iomem *cpu_base)
void __init gic_init_bases(unsigned int gic_nr, int irq_start,
void __iomem *dist_base, void __iomem *cpu_base,
u32 percpu_offset)
{
struct gic_chip_data *gic;
struct irq_domain *domain;
@ -575,8 +662,36 @@ void __init gic_init(unsigned int gic_nr, int irq_start,
gic = &gic_data[gic_nr];
domain = &gic->domain;
gic->dist_base = dist_base;
gic->cpu_base = cpu_base;
#ifdef CONFIG_GIC_NON_BANKED
if (percpu_offset) { /* Frankein-GIC without banked registers... */
unsigned int cpu;
gic->dist_base.percpu_base = alloc_percpu(void __iomem *);
gic->cpu_base.percpu_base = alloc_percpu(void __iomem *);
if (WARN_ON(!gic->dist_base.percpu_base ||
!gic->cpu_base.percpu_base)) {
free_percpu(gic->dist_base.percpu_base);
free_percpu(gic->cpu_base.percpu_base);
return;
}
for_each_possible_cpu(cpu) {
unsigned long offset = percpu_offset * cpu_logical_map(cpu);
*per_cpu_ptr(gic->dist_base.percpu_base, cpu) = dist_base + offset;
*per_cpu_ptr(gic->cpu_base.percpu_base, cpu) = cpu_base + offset;
}
gic_set_base_accessor(gic, gic_get_percpu_base);
} else
#endif
{ /* Normal, sane GIC... */
WARN(percpu_offset,
"GIC_NON_BANKED not enabled, ignoring %08x offset!",
percpu_offset);
gic->dist_base.common_base = dist_base;
gic->cpu_base.common_base = cpu_base;
gic_set_base_accessor(gic, gic_get_common_base);
}
/*
* For primary GICs, skip over SGIs.
@ -584,8 +699,6 @@ void __init gic_init(unsigned int gic_nr, int irq_start,
*/
domain->hwirq_base = 32;
if (gic_nr == 0) {
gic_cpu_base_addr = cpu_base;
if ((irq_start & 31) > 0) {
domain->hwirq_base = 16;
if (irq_start != -1)
@ -597,7 +710,7 @@ void __init gic_init(unsigned int gic_nr, int irq_start,
* Find out how many interrupts are supported.
* The GIC only supports up to 1020 interrupt sources.
*/
gic_irqs = readl_relaxed(dist_base + GIC_DIST_CTR) & 0x1f;
gic_irqs = readl_relaxed(gic_data_dist_base(gic) + GIC_DIST_CTR) & 0x1f;
gic_irqs = (gic_irqs + 1) * 32;
if (gic_irqs > 1020)
gic_irqs = 1020;
@ -645,7 +758,7 @@ void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
dsb();
/* this always happens on GIC0 */
writel_relaxed(map << 16 | irq, gic_data[0].dist_base + GIC_DIST_SOFTINT);
writel_relaxed(map << 16 | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT);
}
#endif
@ -656,6 +769,7 @@ int __init gic_of_init(struct device_node *node, struct device_node *parent)
{
void __iomem *cpu_base;
void __iomem *dist_base;
u32 percpu_offset;
int irq;
struct irq_domain *domain = &gic_data[gic_cnt].domain;
@ -668,9 +782,12 @@ int __init gic_of_init(struct device_node *node, struct device_node *parent)
cpu_base = of_iomap(node, 1);
WARN(!cpu_base, "unable to map gic cpu registers\n");
if (of_property_read_u32(node, "cpu-offset", &percpu_offset))
percpu_offset = 0;
domain->of_node = of_node_get(node);
gic_init(gic_cnt, -1, dist_base, cpu_base);
gic_init_bases(gic_cnt, -1, dist_base, cpu_base, percpu_offset);
if (parent) {
irq = irq_of_parse_and_map(node, 0);

124
arch/arm/common/pl330.c
View file

@ -221,17 +221,6 @@
*/
#define MCODE_BUFF_PER_REQ 256
/*
* Mark a _pl330_req as free.
* We do it by writing DMAEND as the first instruction
* because no valid request is going to have DMAEND as
* its first instruction to execute.
*/
#define MARK_FREE(req) do { \
_emit_END(0, (req)->mc_cpu); \
(req)->mc_len = 0; \
} while (0)
/* If the _pl330_req is available to the client */
#define IS_FREE(req) (*((u8 *)((req)->mc_cpu)) == CMD_DMAEND)
@ -301,8 +290,10 @@ struct pl330_thread {
struct pl330_dmac *dmac;
/* Only two at a time */
struct _pl330_req req[2];
/* Index of the last submitted request */
/* Index of the last enqueued request */
unsigned lstenq;
/* Index of the last submitted request or -1 if the DMA is stopped */
int req_running;
};
enum pl330_dmac_state {
@ -778,6 +769,22 @@ static inline void _execute_DBGINSN(struct pl330_thread *thrd,
writel(0, regs + DBGCMD);
}
/*
* Mark a _pl330_req as free.
* We do it by writing DMAEND as the first instruction
* because no valid request is going to have DMAEND as
* its first instruction to execute.
*/
static void mark_free(struct pl330_thread *thrd, int idx)
{
struct _pl330_req *req = &thrd->req[idx];
_emit_END(0, req->mc_cpu);
req->mc_len = 0;
thrd->req_running = -1;
}
static inline u32 _state(struct pl330_thread *thrd)
{
void __iomem *regs = thrd->dmac->pinfo->base;
@ -836,31 +843,6 @@ static inline u32 _state(struct pl330_thread *thrd)
}
}
/* If the request 'req' of thread 'thrd' is currently active */
static inline bool _req_active(struct pl330_thread *thrd,
struct _pl330_req *req)
{
void __iomem *regs = thrd->dmac->pinfo->base;
u32 buf = req->mc_bus, pc = readl(regs + CPC(thrd->id));
if (IS_FREE(req))
return false;
return (pc >= buf && pc <= buf + req->mc_len) ? true : false;
}
/* Returns 0 if the thread is inactive, ID of active req + 1 otherwise */
static inline unsigned _thrd_active(struct pl330_thread *thrd)
{
if (_req_active(thrd, &thrd->req[0]))
return 1; /* First req active */
if (_req_active(thrd, &thrd->req[1]))
return 2; /* Second req active */
return 0;
}
static void _stop(struct pl330_thread *thrd)
{
void __iomem *regs = thrd->dmac->pinfo->base;
@ -892,17 +874,22 @@ static bool _trigger(struct pl330_thread *thrd)
struct _arg_GO go;
unsigned ns;
u8 insn[6] = {0, 0, 0, 0, 0, 0};
int idx;
/* Return if already ACTIVE */
if (_state(thrd) != PL330_STATE_STOPPED)
return true;
if (!IS_FREE(&thrd->req[1 - thrd->lstenq]))
req = &thrd->req[1 - thrd->lstenq];
else if (!IS_FREE(&thrd->req[thrd->lstenq]))
req = &thrd->req[thrd->lstenq];
else
req = NULL;
idx = 1 - thrd->lstenq;
if (!IS_FREE(&thrd->req[idx]))
req = &thrd->req[idx];
else {
idx = thrd->lstenq;
if (!IS_FREE(&thrd->req[idx]))
req = &thrd->req[idx];
else
req = NULL;
}
/* Return if no request */
if (!req || !req->r)
@ -933,6 +920,8 @@ static bool _trigger(struct pl330_thread *thrd)
/* Only manager can execute GO */
_execute_DBGINSN(thrd, insn, true);
thrd->req_running = idx;
return true;
}
@ -1382,8 +1371,8 @@ static void pl330_dotask(unsigned long data)
thrd->req[0].r = NULL;
thrd->req[1].r = NULL;
MARK_FREE(&thrd->req[0]);
MARK_FREE(&thrd->req[1]);
mark_free(thrd, 0);
mark_free(thrd, 1);
/* Clear the reset flag */
pl330->dmac_tbd.reset_chan &= ~(1 << i);
@ -1461,14 +1450,12 @@ int pl330_update(const struct pl330_info *pi)
thrd = &pl330->channels[id];
active = _thrd_active(thrd);
if (!active) /* Aborted */
active = thrd->req_running;
if (active == -1) /* Aborted */
continue;
active -= 1;
rqdone = &thrd->req[active];
MARK_FREE(rqdone);
mark_free(thrd, active);
/* Get going again ASAP */
_start(thrd);
@ -1480,13 +1467,19 @@ int pl330_update(const struct pl330_info *pi)
/* Now that we are in no hurry, do the callbacks */
while (!list_empty(&pl330->req_done)) {
struct pl330_req *r;
rqdone = container_of(pl330->req_done.next,
struct _pl330_req, rqd);
list_del_init(&rqdone->rqd);
/* Detach the req */
r = rqdone->r;
rqdone->r = NULL;
spin_unlock_irqrestore(&pl330->lock, flags);
_callback(rqdone->r, PL330_ERR_NONE);
_callback(r, PL330_ERR_NONE);
spin_lock_irqsave(&pl330->lock, flags);
}
@ -1509,7 +1502,7 @@ int pl330_chan_ctrl(void *ch_id, enum pl330_chan_op op)
struct pl330_thread *thrd = ch_id;
struct pl330_dmac *pl330;
unsigned long flags;
int ret = 0, active;
int ret = 0, active = thrd->req_running;
if (!thrd || thrd->free || thrd->dmac->state == DYING)
return -EINVAL;
@ -1525,28 +1518,24 @@ int pl330_chan_ctrl(void *ch_id, enum pl330_chan_op op)
thrd->req[0].r = NULL;
thrd->req[1].r = NULL;
MARK_FREE(&thrd->req[0]);
MARK_FREE(&thrd->req[1]);
mark_free(thrd, 0);
mark_free(thrd, 1);
break;
case PL330_OP_ABORT:
active = _thrd_active(thrd);
/* Make sure the channel is stopped */
_stop(thrd);
/* ABORT is only for the active req */
if (!active)
if (active == -1)
break;
active--;
thrd->req[active].r = NULL;
MARK_FREE(&thrd->req[active]);
mark_free(thrd, active);
/* Start the next */
case PL330_OP_START:
if (!_thrd_active(thrd) && !_start(thrd))
if ((active == -1) && !_start(thrd))
ret = -EIO;
break;
@ -1587,14 +1576,13 @@ int pl330_chan_status(void *ch_id, struct pl330_chanstatus *pstatus)
else
pstatus->faulting = false;
active = _thrd_active(thrd);
active = thrd->req_running;
if (!active) {
if (active == -1) {
/* Indicate that the thread is not running */
pstatus->top_req = NULL;
pstatus->wait_req = NULL;
} else {
active--;
pstatus->top_req = thrd->req[active].r;
pstatus->wait_req = !IS_FREE(&thrd->req[1 - active])
? thrd->req[1 - active].r : NULL;
@ -1659,9 +1647,9 @@ void *pl330_request_channel(const struct pl330_info *pi)
thrd->free = false;
thrd->lstenq = 1;
thrd->req[0].r = NULL;
MARK_FREE(&thrd->req[0]);
mark_free(thrd, 0);
thrd->req[1].r = NULL;
MARK_FREE(&thrd->req[1]);
mark_free(thrd, 1);
break;
}
}
@ -1767,14 +1755,14 @@ static inline void _reset_thread(struct pl330_thread *thrd)
thrd->req[0].mc_bus = pl330->mcode_bus
+ (thrd->id * pi->mcbufsz);
thrd->req[0].r = NULL;
MARK_FREE(&thrd->req[0]);
mark_free(thrd, 0);
thrd->req[1].mc_cpu = thrd->req[0].mc_cpu
+ pi->mcbufsz / 2;
thrd->req[1].mc_bus = thrd->req[0].mc_bus
+ pi->mcbufsz / 2;
thrd->req[1].r = NULL;
MARK_FREE(&thrd->req[1]);
mark_free(thrd, 1);
}
static int dmac_alloc_threads(struct pl330_dmac *pl330)

7
arch/arm/common/timer-sp.c
View file

@ -143,7 +143,6 @@ static int sp804_set_next_event(unsigned long next,
}
static struct clock_event_device sp804_clockevent = {
.shift = 32,
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_mode = sp804_set_mode,
.set_next_event = sp804_set_next_event,
@ -169,13 +168,9 @@ void __init sp804_clockevents_init(void __iomem *base, unsigned int irq,
clkevt_base = base;
clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);
evt->name = name;
evt->irq = irq;
evt->mult = div_sc(rate, NSEC_PER_SEC, evt->shift);
evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt);
evt->min_delta_ns = clockevent_delta2ns(0xf, evt);
setup_irq(irq, &sp804_timer_irq);
clockevents_register_device(evt);
clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
}

148
arch/arm/common/vic.c
View file

@ -19,17 +19,22 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/export.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/io.h>
#include <linux/irqdomain.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/syscore_ops.h>
#include <linux/device.h>
#include <linux/amba/bus.h>
#include <asm/exception.h>
#include <asm/mach/irq.h>
#include <asm/hardware/vic.h>
#ifdef CONFIG_PM
/**
* struct vic_device - VIC PM device
* @irq: The IRQ number for the base of the VIC.
@ -40,6 +45,7 @@
* @int_enable: Save for VIC_INT_ENABLE.
* @soft_int: Save for VIC_INT_SOFT.
* @protect: Save for VIC_PROTECT.
* @domain: The IRQ domain for the VIC.
*/
struct vic_device {
void __iomem *base;
@ -50,13 +56,13 @@ struct vic_device {
u32 int_enable;
u32 soft_int;
u32 protect;
struct irq_domain domain;
};
/* we cannot allocate memory when VICs are initially registered */
static struct vic_device vic_devices[CONFIG_ARM_VIC_NR];
static int vic_id;
#endif /* CONFIG_PM */
/**
* vic_init2 - common initialisation code
@ -156,39 +162,50 @@ static int __init vic_pm_init(void)
return 0;
}
late_initcall(vic_pm_init);
#endif /* CONFIG_PM */
/**
* vic_pm_register - Register a VIC for later power management control
* vic_register() - Register a VIC.
* @base: The base address of the VIC.
* @irq: The base IRQ for the VIC.
* @resume_sources: bitmask of interrupts allowed for resume sources.
* @node: The device tree node associated with the VIC.
*
* Register the VIC with the system device tree so that it can be notified
* of suspend and resume requests and ensure that the correct actions are
* taken to re-instate the settings on resume.
*
* This also configures the IRQ domain for the VIC.
*/
static void __init vic_pm_register(void __iomem *base, unsigned int irq, u32 resume_sources)
static void __init vic_register(void __iomem *base, unsigned int irq,
u32 resume_sources, struct device_node *node)
{
struct vic_device *v;
if (vic_id >= ARRAY_SIZE(vic_devices))
if (vic_id >= ARRAY_SIZE(vic_devices)) {
printk(KERN_ERR "%s: too few VICs, increase CONFIG_ARM_VIC_NR\n", __func__);
else {
v = &vic_devices[vic_id];
v->base = base;
v->resume_sources = resume_sources;
v->irq = irq;
vic_id++;
return;
}
v = &vic_devices[vic_id];
v->base = base;
v->resume_sources = resume_sources;
v->irq = irq;
vic_id++;
v->domain.irq_base = irq;
v->domain.nr_irq = 32;
#ifdef CONFIG_OF_IRQ
v->domain.of_node = of_node_get(node);
#endif /* CONFIG_OF */
v->domain.ops = &irq_domain_simple_ops;
irq_domain_add(&v->domain);
}
#else
static inline void vic_pm_register(void __iomem *base, unsigned int irq, u32 arg1) { }
#endif /* CONFIG_PM */
static void vic_ack_irq(struct irq_data *d)
{
void __iomem *base = irq_data_get_irq_chip_data(d);
unsigned int irq = d->irq & 31;
unsigned int irq = d->hwirq;
writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
/* moreover, clear the soft-triggered, in case it was the reason */
writel(1 << irq, base + VIC_INT_SOFT_CLEAR);
@ -197,14 +214,14 @@ static void vic_ack_irq(struct irq_data *d)
static void vic_mask_irq(struct irq_data *d)
{
void __iomem *base = irq_data_get_irq_chip_data(d);
unsigned int irq = d->irq & 31;
unsigned int irq = d->hwirq;
writel(1 << irq, base + VIC_INT_ENABLE_CLEAR);
}
static void vic_unmask_irq(struct irq_data *d)
{
void __iomem *base = irq_data_get_irq_chip_data(d);
unsigned int irq = d->irq & 31;
unsigned int irq = d->hwirq;
writel(1 << irq, base + VIC_INT_ENABLE);
}
@ -226,7 +243,7 @@ static struct vic_device *vic_from_irq(unsigned int irq)
static int vic_set_wake(struct irq_data *d, unsigned int on)
{
struct vic_device *v = vic_from_irq(d->irq);
unsigned int off = d->irq & 31;
unsigned int off = d->hwirq;
u32 bit = 1 << off;
if (!v)
@ -301,7 +318,7 @@ static void __init vic_set_irq_sources(void __iomem *base,
* and 020 within the page. We call this "second block".
*/
static void __init vic_init_st(void __iomem *base, unsigned int irq_start,
u32 vic_sources)
u32 vic_sources, struct device_node *node)
{
unsigned int i;
int vic_2nd_block = ((unsigned long)base & ~PAGE_MASK) != 0;
@ -328,17 +345,12 @@ static void __init vic_init_st(void __iomem *base, unsigned int irq_start,
}
vic_set_irq_sources(base, irq_start, vic_sources);
vic_register(base, irq_start, 0, node);
}
/**
* vic_init - initialise a vectored interrupt controller
* @base: iomem base address
* @irq_start: starting interrupt number, must be muliple of 32
* @vic_sources: bitmask of interrupt sources to allow
* @resume_sources: bitmask of interrupt sources to allow for resume
*/
void __init vic_init(void __iomem *base, unsigned int irq_start,
u32 vic_sources, u32 resume_sources)
static void __init __vic_init(void __iomem *base, unsigned int irq_start,
u32 vic_sources, u32 resume_sources,
struct device_node *node)
{
unsigned int i;
u32 cellid = 0;
@ -356,7 +368,7 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
switch(vendor) {
case AMBA_VENDOR_ST:
vic_init_st(base, irq_start, vic_sources);
vic_init_st(base, irq_start, vic_sources, node);
return;
default:
printk(KERN_WARNING "VIC: unknown vendor, continuing anyways\n");
@ -375,5 +387,81 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
vic_set_irq_sources(base, irq_start, vic_sources);
vic_pm_register(base, irq_start, resume_sources);
vic_register(base, irq_start, resume_sources, node);
}
/**
* vic_init() - initialise a vectored interrupt controller
* @base: iomem base address
* @irq_start: starting interrupt number, must be muliple of 32
* @vic_sources: bitmask of interrupt sources to allow
* @resume_sources: bitmask of interrupt sources to allow for resume
*/
void __init vic_init(void __iomem *base, unsigned int irq_start,
u32 vic_sources, u32 resume_sources)
{
__vic_init(base, irq_start, vic_sources, resume_sources, NULL);
}
#ifdef CONFIG_OF
int __init vic_of_init(struct device_node *node, struct device_node *parent)
{
void __iomem *regs;
int irq_base;
if (WARN(parent, "non-root VICs are not supported"))
return -EINVAL;
regs = of_iomap(node, 0);
if (WARN_ON(!regs))
return -EIO;
irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
if (WARN_ON(irq_base < 0))
goto out_unmap;
__vic_init(regs, irq_base, ~0, ~0, node);
return 0;
out_unmap:
iounmap(regs);
return -EIO;
}
#endif /* CONFIG OF */
/*
* Handle each interrupt in a single VIC. Returns non-zero if we've
* handled at least one interrupt. This does a single read of the
* status register and handles all interrupts in order from LSB first.
*/
static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
{
u32 stat, irq;
int handled = 0;
stat = readl_relaxed(vic->base + VIC_IRQ_STATUS);
while (stat) {
irq = ffs(stat) - 1;
handle_IRQ(irq_domain_to_irq(&vic->domain, irq), regs);
stat &= ~(1 << irq);
handled = 1;
}
return handled;
}
/*
* Keep iterating over all registered VIC's until there are no pending
* interrupts.
*/
asmlinkage void __exception_irq_entry vic_handle_irq(struct pt_regs *regs)
{
int i, handled;
do {
for (i = 0, handled = 0; i < vic_id; ++i)
handled |= handle_one_vic(&vic_devices[i], regs);
} while (handled);
}

12
arch/arm/configs/imx_v4_v5_defconfig
View file

@ -18,9 +18,10 @@ CONFIG_ARCH_MXC=y
CONFIG_ARCH_IMX_V4_V5=y
CONFIG_ARCH_MX1ADS=y
CONFIG_MACH_SCB9328=y
CONFIG_MACH_APF9328=y
CONFIG_MACH_MX21ADS=y
CONFIG_MACH_MX25_3DS=y
CONFIG_MACH_EUKREA_CPUIMX25=y
CONFIG_MACH_EUKREA_CPUIMX25SD=y
CONFIG_MACH_MX27ADS=y
CONFIG_MACH_PCM038=y
CONFIG_MACH_CPUIMX27=y
@ -72,17 +73,16 @@ CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_MXC=y
CONFIG_MTD_UBI=y
CONFIG_MISC_DEVICES=y
CONFIG_EEPROM_AT24=y
CONFIG_EEPROM_AT25=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y
CONFIG_DM9000=y
CONFIG_SMC91X=y
CONFIG_SMC911X=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_SMSC_PHY=y
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
@ -100,6 +100,7 @@ CONFIG_I2C_CHARDEV=y
CONFIG_I2C_IMX=y
CONFIG_SPI=y
CONFIG_SPI_IMX=y
CONFIG_SPI_SPIDEV=y
CONFIG_W1=y
CONFIG_W1_MASTER_MXC=y
CONFIG_W1_SLAVE_THERM=y
@ -139,6 +140,7 @@ CONFIG_MMC=y
CONFIG_MMC_MXC=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_MC13783=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y

175
arch/arm/configs/pcontrol_g20_defconfig
View file

@ -1,175 +0,0 @@
CONFIG_EXPERIMENTAL=y
CONFIG_CROSS_COMPILE="/opt/arm-2010q1/bin/arm-none-linux-gnueabi-"
# CONFIG_LOCALVERSION_AUTO is not set
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_NAMESPACES=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
# CONFIG_SYSCTL_SYSCALL is not set
# CONFIG_KALLSYMS is not set
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_DEFAULT_DEADLINE=y
CONFIG_ARCH_AT91=y
CONFIG_ARCH_AT91SAM9G20=y
CONFIG_MACH_PCONTROL_G20=y
CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_AEABI=y
# CONFIG_OABI_COMPAT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="console=ttyS0,115200 mem=128M mtdparts=atmel_nand:128k(bootstrap)ro,256k(uboot)ro,128k(env1)ro,128k(env2)ro,2M(linux),-(root) root=/dev/mmcblk0p1 rootwait rw"
CONFIG_VFP=y
CONFIG_BINFMT_MISC=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_VLAN_8021Q=y
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PHRAM=m
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_ATMEL=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_ATMEL_TCLIB=y
CONFIG_EEPROM_AT24=m
CONFIG_SCSI=m
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=m
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_MACVLAN=m
CONFIG_TUN=m
CONFIG_SMSC_PHY=m
CONFIG_BROADCOM_PHY=m
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
CONFIG_MACB=y
CONFIG_SMSC911X=m
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_WLAN is not set
CONFIG_PPP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_MPPE=m
CONFIG_INPUT_POLLDEV=y
CONFIG_INPUT_SPARSEKMAP=y
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=m
CONFIG_INPUT_EVBUG=m
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO=m
CONFIG_KEYBOARD_MATRIX=m
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_INPUT_MISC=y
CONFIG_INPUT_UINPUT=m
CONFIG_INPUT_GPIO_ROTARY_ENCODER=m
# CONFIG_SERIO is not set
# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_ATMEL=y
CONFIG_SERIAL_ATMEL_CONSOLE=y
CONFIG_SERIAL_MAX3100=m
# CONFIG_LEGACY_PTYS is not set
# CONFIG_HW_RANDOM is not set
CONFIG_R3964=m
CONFIG_I2C=m
CONFIG_I2C_CHARDEV=m
# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_GPIO=m
CONFIG_SPI=y
CONFIG_SPI_ATMEL=m
CONFIG_SPI_SPIDEV=m
CONFIG_GPIO_SYSFS=y
CONFIG_W1=m
CONFIG_W1_MASTER_GPIO=m
CONFIG_W1_SLAVE_DS2431=m
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_AT91SAM9X_WATCHDOG=y
# CONFIG_MFD_SUPPORT is not set
# CONFIG_HID_SUPPORT is not set
CONFIG_USB=y
# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_STORAGE=m
CONFIG_USB_LIBUSUAL=y
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_GADGET=y
CONFIG_USB_ZERO=m
CONFIG_USB_ETH=m
CONFIG_USB_FILE_STORAGE=m
CONFIG_USB_G_SERIAL=m
CONFIG_USB_G_HID=m
CONFIG_MMC=y
CONFIG_MMC_UNSAFE_RESUME=y
CONFIG_MMC_ATMELMCI=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_AUXDISPLAY=y
CONFIG_UIO=y
CONFIG_UIO_PDRV=y
CONFIG_STAGING=y
# CONFIG_STAGING_EXCLUDE_BUILD is not set
CONFIG_IIO=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V4=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_850=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_UTF8=y
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ANSI_CPRNG=y
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC_CCITT=y

11
arch/arm/include/asm/assembler.h
View file

@ -186,6 +186,17 @@
#define ALT_UP_B(label) b label
#endif
/*
* Instruction barrier
*/
.macro instr_sync
#if __LINUX_ARM_ARCH__ >= 7
isb
#elif __LINUX_ARM_ARCH__ == 6
mcr p15, 0, r0, c7, c5, 4
#endif
.endm
/*
* SMP data memory barrier
*/

1
arch/arm/include/asm/bug.h
View file

@ -32,7 +32,6 @@
#define __BUG(__file, __line, __value) \
do { \
BUILD_BUG_ON(sizeof(struct bug_entry) != 12); \
asm volatile("1:\t" BUG_INSTR_TYPE #__value "\n" \
".pushsection .rodata.str, \"aMS\", %progbits, 1\n" \
"2:\t.asciz " #__file "\n" \

179
arch/arm/include/asm/cti.h Normal file
View file

@ -0,0 +1,179 @@
#ifndef __ASMARM_CTI_H
#define __ASMARM_CTI_H
#include <asm/io.h>
/* The registers' definition is from section 3.2 of
* Embedded Cross Trigger Revision: r0p0
*/
#define CTICONTROL 0x000
#define CTISTATUS 0x004
#define CTILOCK 0x008
#define CTIPROTECTION 0x00C
#define CTIINTACK 0x010
#define CTIAPPSET 0x014
#define CTIAPPCLEAR 0x018
#define CTIAPPPULSE 0x01c
#define CTIINEN 0x020
#define CTIOUTEN 0x0A0
#define CTITRIGINSTATUS 0x130
#define CTITRIGOUTSTATUS 0x134
#define CTICHINSTATUS 0x138
#define CTICHOUTSTATUS 0x13c
#define CTIPERIPHID0 0xFE0
#define CTIPERIPHID1 0xFE4
#define CTIPERIPHID2 0xFE8
#define CTIPERIPHID3 0xFEC
#define CTIPCELLID0 0xFF0
#define CTIPCELLID1 0xFF4
#define CTIPCELLID2 0xFF8
#define CTIPCELLID3 0xFFC
/* The below are from section 3.6.4 of
* CoreSight v1.0 Architecture Specification
*/
#define LOCKACCESS 0xFB0
#define LOCKSTATUS 0xFB4
/* write this value to LOCKACCESS will unlock the module, and
* other value will lock the module
*/
#define LOCKCODE 0xC5ACCE55
/**
* struct cti - cross trigger interface struct
* @base: mapped virtual address for the cti base
* @irq: irq number for the cti
* @trig_out_for_irq: triger out number which will cause
* the @irq happen
*
* cti struct used to operate cti registers.
*/
struct cti {
void __iomem *base;
int irq;
int trig_out_for_irq;
};
/**
* cti_init - initialize the cti instance
* @cti: cti instance
* @base: mapped virtual address for the cti base
* @irq: irq number for the cti
* @trig_out: triger out number which will cause
* the @irq happen
*
* called by machine code to pass the board dependent
* @base, @irq and @trig_out to cti.
*/
static inline void cti_init(struct cti *cti,
void __iomem *base, int irq, int trig_out)
{
cti->base = base;
cti->irq = irq;
cti->trig_out_for_irq = trig_out;
}
/**
* cti_map_trigger - use the @chan to map @trig_in to @trig_out
* @cti: cti instance
* @trig_in: trigger in number
* @trig_out: trigger out number
* @channel: channel number
*
* This function maps one trigger in of @trig_in to one trigger
* out of @trig_out using the channel @chan.
*/
static inline void cti_map_trigger(struct cti *cti,
int trig_in, int trig_out, int chan)
{
void __iomem *base = cti->base;
unsigned long val;
val = __raw_readl(base + CTIINEN + trig_in * 4);
val |= BIT(chan);
__raw_writel(val, base + CTIINEN + trig_in * 4);
val = __raw_readl(base + CTIOUTEN + trig_out * 4);
val |= BIT(chan);
__raw_writel(val, base + CTIOUTEN + trig_out * 4);
}
/**
* cti_enable - enable the cti module
* @cti: cti instance
*
* enable the cti module
*/
static inline void cti_enable(struct cti *cti)
{
__raw_writel(0x1, cti->base + CTICONTROL);
}
/**
* cti_disable - disable the cti module
* @cti: cti instance
*
* enable the cti module
*/
static inline void cti_disable(struct cti *cti)
{
__raw_writel(0, cti->base + CTICONTROL);
}
/**
* cti_irq_ack - clear the cti irq
* @cti: cti instance
*
* clear the cti irq
*/
static inline void cti_irq_ack(struct cti *cti)
{
void __iomem *base = cti->base;
unsigned long val;
val = __raw_readl(base + CTIINTACK);
val |= BIT(cti->trig_out_for_irq);
__raw_writel(val, base + CTIINTACK);
}
/**
* cti_unlock - unlock cti module
* @cti: cti instance
*
* unlock the cti module, or else any writes to the cti
* module is not allowed.
*/
static inline void cti_unlock(struct cti *cti)
{
void __iomem *base = cti->base;
unsigned long val;
val = __raw_readl(base + LOCKSTATUS);
if (val & 1) {
val = LOCKCODE;
__raw_writel(val, base + LOCKACCESS);
}
}
/**
* cti_lock - lock cti module
* @cti: cti instance
*
* lock the cti module, so any writes to the cti
* module will be not allowed.
*/
static inline void cti_lock(struct cti *cti)
{
void __iomem *base = cti->base;
unsigned long val;
val = __raw_readl(base + LOCKSTATUS);
if (!(val & 1)) {
val = ~LOCKCODE;
__raw_writel(val, base + LOCKACCESS);
}
}
#endif

48
arch/arm/include/asm/edac.h Normal file
View file

@ -0,0 +1,48 @@
/*
* Copyright 2011 Calxeda, Inc.
* Based on PPC version Copyright 2007 MontaVista Software, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ASM_EDAC_H
#define ASM_EDAC_H
/*
* ECC atomic, DMA, SMP and interrupt safe scrub function.
* Implements the per arch atomic_scrub() that EDAC use for software
* ECC scrubbing. It reads memory and then writes back the original
* value, allowing the hardware to detect and correct memory errors.
*/
static inline void atomic_scrub(void *va, u32 size)
{
#if __LINUX_ARM_ARCH__ >= 6
unsigned int *virt_addr = va;
unsigned int temp, temp2;
unsigned int i;
for (i = 0; i < size / sizeof(*virt_addr); i++, virt_addr++) {
/* Very carefully read and write to memory atomically
* so we are interrupt, DMA and SMP safe.
*/
__asm__ __volatile__("\n"
"1: ldrex %0, [%2]\n"
" strex %1, %0, [%2]\n"
" teq %1, #0\n"
" bne 1b\n"
: "=&r"(temp), "=&r"(temp2)
: "r"(virt_addr)
: "cc");
}
#endif
}
#endif

57
arch/arm/include/asm/entry-macro-vic2.S
View file

@ -1,57 +0,0 @@
/* arch/arm/include/asm/entry-macro-vic2.S
*
* Originally arch/arm/mach-s3c6400/include/mach/entry-macro.S
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Ben Dooks <ben@simtec.co.uk>
*
* Low-level IRQ helper macros for a device with two VICs
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
/* This should be included from <mach/entry-macro.S> with the necessary
* defines for virtual addresses and IRQ bases for the two vics.
*
* The code needs the following defined:
* IRQ_VIC0_BASE IRQ number of VIC0's first IRQ
* IRQ_VIC1_BASE IRQ number of VIC1's first IRQ
* VA_VIC0 Virtual address of VIC0
* VA_VIC1 Virtual address of VIC1
*
* Note, code assumes VIC0's virtual address is an ARM immediate constant
* away from VIC1.
*/
#include <asm/hardware/vic.h>
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
ldr \base, =VA_VIC0
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
@ check the vic0
mov \irqnr, #IRQ_VIC0_BASE + 31
ldr \irqstat, [ \base, # VIC_IRQ_STATUS ]
teq \irqstat, #0
@ otherwise try vic1
addeq \tmp, \base, #(VA_VIC1 - VA_VIC0)
addeq \irqnr, \irqnr, #(IRQ_VIC1_BASE - IRQ_VIC0_BASE)
ldreq \irqstat, [ \tmp, # VIC_IRQ_STATUS ]
teqeq \irqstat, #0
clzne \irqstat, \irqstat
subne \irqnr, \irqnr, \irqstat
.endm

4
arch/arm/include/asm/gpio.h
View file

@ -1,6 +1,10 @@
#ifndef _ARCH_ARM_GPIO_H
#define _ARCH_ARM_GPIO_H
#if CONFIG_ARCH_NR_GPIO > 0
#define ARCH_NR_GPIO CONFIG_ARCH_NR_GPIO
#endif
/* not all ARM platforms necessarily support this API ... */
#include <mach/gpio.h>

17
arch/arm/include/asm/hardirq.h
View file

@ -27,23 +27,6 @@ u64 smp_irq_stat_cpu(unsigned int cpu);
#define arch_irq_stat_cpu smp_irq_stat_cpu
#if NR_IRQS > 512
#define HARDIRQ_BITS 10
#elif NR_IRQS > 256
#define HARDIRQ_BITS 9
#else
#define HARDIRQ_BITS 8
#endif
/*
* The hardirq mask has to be large enough to have space
* for potentially all IRQ sources in the system nesting
* on a single CPU:
*/
#if (1 << HARDIRQ_BITS) < NR_IRQS
# error HARDIRQ_BITS is too low!
#endif
#define __ARCH_IRQ_EXIT_IRQS_DISABLED 1
#endif /* __ASM_HARDIRQ_H */

60
arch/arm/include/asm/hardware/entry-macro-gic.S
View file

@ -1,60 +0,0 @@
/*
* arch/arm/include/asm/hardware/entry-macro-gic.S
*
* Low-level IRQ helper macros for GIC
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <asm/hardware/gic.h>
#ifndef HAVE_GET_IRQNR_PREAMBLE
.macro get_irqnr_preamble, base, tmp
ldr \base, =gic_cpu_base_addr
ldr \base, [\base]
.endm
#endif
/*
* The interrupt numbering scheme is defined in the
* interrupt controller spec. To wit:
*
* Interrupts 0-15 are IPI
* 16-31 are local. We allow 30 to be used for the watchdog.
* 32-1020 are global
* 1021-1022 are reserved
* 1023 is "spurious" (no interrupt)
*
* A simple read from the controller will tell us the number of the highest
* priority enabled interrupt. We then just need to check whether it is in the
* valid range for an IRQ (30-1020 inclusive).
*/
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
ldr \irqstat, [\base, #GIC_CPU_INTACK]
/* bits 12-10 = src CPU, 9-0 = int # */
ldr \tmp, =1021
bic \irqnr, \irqstat, #0x1c00
cmp \irqnr, #15
cmpcc \irqnr, \irqnr
cmpne \irqnr, \tmp
cmpcs \irqnr, \irqnr
.endm
/* We assume that irqstat (the raw value of the IRQ acknowledge
* register) is preserved from the macro above.
* If there is an IPI, we immediately signal end of interrupt on the
* controller, since this requires the original irqstat value which
* we won't easily be able to recreate later.
*/
.macro test_for_ipi, irqnr, irqstat, base, tmp
bic \irqnr, \irqstat, #0x1c00
cmp \irqnr, #16
strcc \irqstat, [\base, #GIC_CPU_EOI]
cmpcs \irqnr, \irqnr
.endm

26
arch/arm/include/asm/hardware/gic.h
View file

@ -36,30 +36,22 @@
#include <linux/irqdomain.h>
struct device_node;
extern void __iomem *gic_cpu_base_addr;
extern struct irq_chip gic_arch_extn;
void gic_init(unsigned int, int, void __iomem *, void __iomem *);
void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
u32 offset);
int gic_of_init(struct device_node *node, struct device_node *parent);
void gic_secondary_init(unsigned int);
void gic_handle_irq(struct pt_regs *regs);
void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
void gic_raise_softirq(const struct cpumask *mask, unsigned int irq);
struct gic_chip_data {
void __iomem *dist_base;
void __iomem *cpu_base;
#ifdef CONFIG_CPU_PM
u32 saved_spi_enable[DIV_ROUND_UP(1020, 32)];
u32 saved_spi_conf[DIV_ROUND_UP(1020, 16)];
u32 saved_spi_target[DIV_ROUND_UP(1020, 4)];
u32 __percpu *saved_ppi_enable;
u32 __percpu *saved_ppi_conf;
#endif
#ifdef CONFIG_IRQ_DOMAIN
struct irq_domain domain;
#endif
unsigned int gic_irqs;
};
static inline void gic_init(unsigned int nr, int start,
void __iomem *dist , void __iomem *cpu)
{
gic_init_bases(nr, start, dist, cpu, 0);
}
#endif
#endif

1
arch/arm/include/asm/hardware/iop3xx.h
View file

@ -234,6 +234,7 @@ extern int iop3xx_get_init_atu(void);
void iop3xx_map_io(void);
void iop_init_cp6_handler(void);
void iop_init_time(unsigned long tickrate);
void iop3xx_restart(char, const char *);
static inline u32 read_tmr0(void)
{

12
arch/arm/include/asm/hardware/vic.h
View file

@ -41,7 +41,15 @@
#define VIC_PL192_VECT_ADDR 0xF00
#ifndef __ASSEMBLY__
void vic_init(void __iomem *base, unsigned int irq_start, u32 vic_sources, u32 resume_sources);
#endif
#include <linux/compiler.h>
#include <linux/types.h>
struct device_node;
struct pt_regs;
void vic_init(void __iomem *base, unsigned int irq_start, u32 vic_sources, u32 resume_sources);
int vic_of_init(struct device_node *node, struct device_node *parent);
void vic_handle_irq(struct pt_regs *regs);
#endif /* __ASSEMBLY__ */
#endif

14
arch/arm/include/asm/idmap.h Normal file
View file

@ -0,0 +1,14 @@
#ifndef __ASM_IDMAP_H
#define __ASM_IDMAP_H
#include <linux/compiler.h>
#include <asm/pgtable.h>
/* Tag a function as requiring to be executed via an identity mapping. */
#define __idmap __section(.idmap.text) noinline notrace
extern pgd_t *idmap_pgd;
void setup_mm_for_reboot(void);
#endif /* __ASM_IDMAP_H */

9
arch/arm/include/asm/mach/arch.h
View file

@ -31,10 +31,10 @@ struct machine_desc {
unsigned int video_start; /* start of video RAM */
unsigned int video_end; /* end of video RAM */
unsigned int reserve_lp0 :1; /* never has lp0 */
unsigned int reserve_lp1 :1; /* never has lp1 */
unsigned int reserve_lp2 :1; /* never has lp2 */
unsigned int soft_reboot :1; /* soft reboot */
unsigned char reserve_lp0 :1; /* never has lp0 */
unsigned char reserve_lp1 :1; /* never has lp1 */
unsigned char reserve_lp2 :1; /* never has lp2 */
char restart_mode; /* default restart mode */
void (*fixup)(struct tag *, char **,
struct meminfo *);
void (*reserve)(void);/* reserve mem blocks */
@ -46,6 +46,7 @@ struct machine_desc {
#ifdef CONFIG_MULTI_IRQ_HANDLER
void (*handle_irq)(struct pt_regs *);
#endif
void (*restart)(char, const char *);
};
/*

20
arch/arm/include/asm/opcodes.h Normal file
View file

@ -0,0 +1,20 @@
/*
* arch/arm/include/asm/opcodes.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_ARM_OPCODES_H
#define __ASM_ARM_OPCODES_H
#ifndef __ASSEMBLY__
extern asmlinkage unsigned int arm_check_condition(u32 opcode, u32 psr);
#endif
#define ARM_OPCODE_CONDTEST_FAIL 0
#define ARM_OPCODE_CONDTEST_PASS 1
#define ARM_OPCODE_CONDTEST_UNCOND 2
#endif /* __ASM_ARM_OPCODES_H */

4
arch/arm/include/asm/page.h
View file

@ -151,7 +151,11 @@ extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
extern void copy_page(void *to, const void *from);
#ifdef CONFIG_ARM_LPAE
#include <asm/pgtable-3level-types.h>
#else
#include <asm/pgtable-2level-types.h>
#endif
#endif /* CONFIG_MMU */

3
arch/arm/include/asm/perf_event.h
View file

@ -32,7 +32,4 @@ enum arm_perf_pmu_ids {
extern enum arm_perf_pmu_ids
armpmu_get_pmu_id(void);
extern int
armpmu_get_max_events(void);
#endif /* __ARM_PERF_EVENT_H__ */

26
arch/arm/include/asm/pgalloc.h
View file

@ -25,12 +25,34 @@
#define _PAGE_USER_TABLE (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_USER))
#define _PAGE_KERNEL_TABLE (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_KERNEL))
#ifdef CONFIG_ARM_LPAE
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return (pmd_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
}
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
free_page((unsigned long)pmd);
}
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE));
}
#else /* !CONFIG_ARM_LPAE */
/*
* Since we have only two-level page tables, these are trivial
*/
#define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); })
#define pmd_free(mm, pmd) do { } while (0)
#define pgd_populate(mm,pmd,pte) BUG()
#define pud_populate(mm,pmd,pte) BUG()
#endif /* CONFIG_ARM_LPAE */
extern pgd_t *pgd_alloc(struct mm_struct *mm);
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
@ -109,7 +131,9 @@ static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte,
{
pmdval_t pmdval = (pte + PTE_HWTABLE_OFF) | prot;
pmdp[0] = __pmd(pmdval);
#ifndef CONFIG_ARM_LPAE
pmdp[1] = __pmd(pmdval + 256 * sizeof(pte_t));
#endif
flush_pmd_entry(pmdp);
}

41
arch/arm/include/asm/pgtable-2level.h
View file

@ -140,4 +140,45 @@
#define L_PTE_MT_DEV_CACHED (_AT(pteval_t, 0x0b) << 2) /* 1011 */
#define L_PTE_MT_MASK (_AT(pteval_t, 0x0f) << 2)
#ifndef __ASSEMBLY__
/*
* The "pud_xxx()" functions here are trivial when the pmd is folded into
* the pud: the pud entry is never bad, always exists, and can't be set or
* cleared.
*/
#define pud_none(pud) (0)
#define pud_bad(pud) (0)
#define pud_present(pud) (1)
#define pud_clear(pudp) do { } while (0)
#define set_pud(pud,pudp) do { } while (0)
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
{
return (pmd_t *)pud;
}
#define pmd_bad(pmd) (pmd_val(pmd) & 2)
#define copy_pmd(pmdpd,pmdps) \
do { \
pmdpd[0] = pmdps[0]; \
pmdpd[1] = pmdps[1]; \
flush_pmd_entry(pmdpd); \
} while (0)
#define pmd_clear(pmdp) \
do { \
pmdp[0] = __pmd(0); \
pmdp[1] = __pmd(0); \
clean_pmd_entry(pmdp); \
} while (0)
/* we don't need complex calculations here as the pmd is folded into the pgd */
#define pmd_addr_end(addr,end) (end)
#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
#endif /* __ASSEMBLY__ */
#endif /* _ASM_PGTABLE_2LEVEL_H */

77
arch/arm/include/asm/pgtable-3level-hwdef.h Normal file
View file

@ -0,0 +1,77 @@
/*
* arch/arm/include/asm/pgtable-3level-hwdef.h
*
* Copyright (C) 2011 ARM Ltd.
* Author: Catalin Marinas <catalin.marinas@arm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _ASM_PGTABLE_3LEVEL_HWDEF_H
#define _ASM_PGTABLE_3LEVEL_HWDEF_H
/*
* Hardware page table definitions.
*
* + Level 1/2 descriptor
* - common
*/
#define PMD_TYPE_MASK (_AT(pmdval_t, 3) << 0)
#define PMD_TYPE_FAULT (_AT(pmdval_t, 0) << 0)
#define PMD_TYPE_TABLE (_AT(pmdval_t, 3) << 0)
#define PMD_TYPE_SECT (_AT(pmdval_t, 1) << 0)
#define PMD_BIT4 (_AT(pmdval_t, 0))
#define PMD_DOMAIN(x) (_AT(pmdval_t, 0))
/*
* - section
*/
#define PMD_SECT_BUFFERABLE (_AT(pmdval_t, 1) << 2)
#define PMD_SECT_CACHEABLE (_AT(pmdval_t, 1) << 3)
#define PMD_SECT_S (_AT(pmdval_t, 3) << 8)
#define PMD_SECT_AF (_AT(pmdval_t, 1) << 10)
#define PMD_SECT_nG (_AT(pmdval_t, 1) << 11)
#define PMD_SECT_XN (_AT(pmdval_t, 1) << 54)
#define PMD_SECT_AP_WRITE (_AT(pmdval_t, 0))
#define PMD_SECT_AP_READ (_AT(pmdval_t, 0))
#define PMD_SECT_TEX(x) (_AT(pmdval_t, 0))
/*
* AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
*/
#define PMD_SECT_UNCACHED (_AT(pmdval_t, 0) << 2) /* strongly ordered */
#define PMD_SECT_BUFFERED (_AT(pmdval_t, 1) << 2) /* normal non-cacheable */
#define PMD_SECT_WT (_AT(pmdval_t, 2) << 2) /* normal inner write-through */
#define PMD_SECT_WB (_AT(pmdval_t, 3) << 2) /* normal inner write-back */
#define PMD_SECT_WBWA (_AT(pmdval_t, 7) << 2) /* normal inner write-alloc */
/*
* + Level 3 descriptor (PTE)
*/
#define PTE_TYPE_MASK (_AT(pteval_t, 3) << 0)
#define PTE_TYPE_FAULT (_AT(pteval_t, 0) << 0)
#define PTE_TYPE_PAGE (_AT(pteval_t, 3) << 0)
#define PTE_BUFFERABLE (_AT(pteval_t, 1) << 2) /* AttrIndx[0] */
#define PTE_CACHEABLE (_AT(pteval_t, 1) << 3) /* AttrIndx[1] */
#define PTE_EXT_SHARED (_AT(pteval_t, 3) << 8) /* SH[1:0], inner shareable */
#define PTE_EXT_AF (_AT(pteval_t, 1) << 10) /* Access Flag */
#define PTE_EXT_NG (_AT(pteval_t, 1) << 11) /* nG */
#define PTE_EXT_XN (_AT(pteval_t, 1) << 54) /* XN */
/*
* 40-bit physical address supported.
*/
#define PHYS_MASK_SHIFT (40)
#define PHYS_MASK ((1ULL << PHYS_MASK_SHIFT) - 1)
#endif

70
arch/arm/include/asm/pgtable-3level-types.h Normal file
View file

@ -0,0 +1,70 @@
/*
* arch/arm/include/asm/pgtable-3level-types.h
*
* Copyright (C) 2011 ARM Ltd.
* Author: Catalin Marinas <catalin.marinas@arm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _ASM_PGTABLE_3LEVEL_TYPES_H
#define _ASM_PGTABLE_3LEVEL_TYPES_H
#include <asm/types.h>
typedef u64 pteval_t;
typedef u64 pmdval_t;
typedef u64 pgdval_t;
#undef STRICT_MM_TYPECHECKS
#ifdef STRICT_MM_TYPECHECKS
/*
* These are used to make use of C type-checking..
*/
typedef struct { pteval_t pte; } pte_t;
typedef struct { pmdval_t pmd; } pmd_t;
typedef struct { pgdval_t pgd; } pgd_t;
typedef struct { pteval_t pgprot; } pgprot_t;
#define pte_val(x) ((x).pte)
#define pmd_val(x) ((x).pmd)
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
#else /* !STRICT_MM_TYPECHECKS */
typedef pteval_t pte_t;
typedef pmdval_t pmd_t;
typedef pgdval_t pgd_t;
typedef pteval_t pgprot_t;
#define pte_val(x) (x)
#define pmd_val(x) (x)
#define pgd_val(x) (x)
#define pgprot_val(x) (x)
#define __pte(x) (x)
#define __pmd(x) (x)
#define __pgd(x) (x)
#define __pgprot(x) (x)
#endif /* STRICT_MM_TYPECHECKS */
#endif /* _ASM_PGTABLE_3LEVEL_TYPES_H */

155
arch/arm/include/asm/pgtable-3level.h Normal file
View file

@ -0,0 +1,155 @@
/*
* arch/arm/include/asm/pgtable-3level.h
*
* Copyright (C) 2011 ARM Ltd.
* Author: Catalin Marinas <catalin.marinas@arm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _ASM_PGTABLE_3LEVEL_H
#define _ASM_PGTABLE_3LEVEL_H
/*
* With LPAE, there are 3 levels of page tables. Each level has 512 entries of
* 8 bytes each, occupying a 4K page. The first level table covers a range of
* 512GB, each entry representing 1GB. Since we are limited to 4GB input
* address range, only 4 entries in the PGD are used.
*
* There are enough spare bits in a page table entry for the kernel specific
* state.
*/
#define PTRS_PER_PTE 512
#define PTRS_PER_PMD 512
#define PTRS_PER_PGD 4
#define PTE_HWTABLE_PTRS (PTRS_PER_PTE)
#define PTE_HWTABLE_OFF (0)
#define PTE_HWTABLE_SIZE (PTRS_PER_PTE * sizeof(u64))
/*
* PGDIR_SHIFT determines the size a top-level page table entry can map.
*/
#define PGDIR_SHIFT 30
/*
* PMD_SHIFT determines the size a middle-level page table entry can map.
*/
#define PMD_SHIFT 21
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE-1))
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE-1))
/*
* section address mask and size definitions.
*/
#define SECTION_SHIFT 21
#define SECTION_SIZE (1UL << SECTION_SHIFT)
#define SECTION_MASK (~(SECTION_SIZE-1))
#define USER_PTRS_PER_PGD (PAGE_OFFSET / PGDIR_SIZE)
/*
* "Linux" PTE definitions for LPAE.
*
* These bits overlap with the hardware bits but the naming is preserved for
* consistency with the classic page table format.
*/
#define L_PTE_PRESENT (_AT(pteval_t, 3) << 0) /* Valid */
#define L_PTE_FILE (_AT(pteval_t, 1) << 2) /* only when !PRESENT */
#define L_PTE_BUFFERABLE (_AT(pteval_t, 1) << 2) /* AttrIndx[0] */
#define L_PTE_CACHEABLE (_AT(pteval_t, 1) << 3) /* AttrIndx[1] */
#define L_PTE_USER (_AT(pteval_t, 1) << 6) /* AP[1] */
#define L_PTE_RDONLY (_AT(pteval_t, 1) << 7) /* AP[2] */
#define L_PTE_SHARED (_AT(pteval_t, 3) << 8) /* SH[1:0], inner shareable */
#define L_PTE_YOUNG (_AT(pteval_t, 1) << 10) /* AF */
#define L_PTE_XN (_AT(pteval_t, 1) << 54) /* XN */
#define L_PTE_DIRTY (_AT(pteval_t, 1) << 55) /* unused */
#define L_PTE_SPECIAL (_AT(pteval_t, 1) << 56) /* unused */
/*
* To be used in assembly code with the upper page attributes.
*/
#define L_PTE_XN_HIGH (1 << (54 - 32))
#define L_PTE_DIRTY_HIGH (1 << (55 - 32))
/*
* AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
*/
#define L_PTE_MT_UNCACHED (_AT(pteval_t, 0) << 2) /* strongly ordered */
#define L_PTE_MT_BUFFERABLE (_AT(pteval_t, 1) << 2) /* normal non-cacheable */
#define L_PTE_MT_WRITETHROUGH (_AT(pteval_t, 2) << 2) /* normal inner write-through */
#define L_PTE_MT_WRITEBACK (_AT(pteval_t, 3) << 2) /* normal inner write-back */
#define L_PTE_MT_WRITEALLOC (_AT(pteval_t, 7) << 2) /* normal inner write-alloc */
#define L_PTE_MT_DEV_SHARED (_AT(pteval_t, 4) << 2) /* device */
#define L_PTE_MT_DEV_NONSHARED (_AT(pteval_t, 4) << 2) /* device */
#define L_PTE_MT_DEV_WC (_AT(pteval_t, 1) << 2) /* normal non-cacheable */
#define L_PTE_MT_DEV_CACHED (_AT(pteval_t, 3) << 2) /* normal inner write-back */
#define L_PTE_MT_MASK (_AT(pteval_t, 7) << 2)
/*
* Software PGD flags.
*/
#define L_PGD_SWAPPER (_AT(pgdval_t, 1) << 55) /* swapper_pg_dir entry */
#ifndef __ASSEMBLY__
#define pud_none(pud) (!pud_val(pud))
#define pud_bad(pud) (!(pud_val(pud) & 2))
#define pud_present(pud) (pud_val(pud))
#define pud_clear(pudp) \
do { \
*pudp = __pud(0); \
clean_pmd_entry(pudp); \
} while (0)
#define set_pud(pudp, pud) \
do { \
*pudp = pud; \
flush_pmd_entry(pudp); \
} while (0)
static inline pmd_t *pud_page_vaddr(pud_t pud)
{
return __va(pud_val(pud) & PHYS_MASK & (s32)PAGE_MASK);
}
/* Find an entry in the second-level page table.. */
#define pmd_index(addr) (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
{
return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(addr);
}
#define pmd_bad(pmd) (!(pmd_val(pmd) & 2))
#define copy_pmd(pmdpd,pmdps) \
do { \
*pmdpd = *pmdps; \
flush_pmd_entry(pmdpd); \
} while (0)
#define pmd_clear(pmdp) \
do { \
*pmdp = __pmd(0); \
clean_pmd_entry(pmdp); \
} while (0)
#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,__pte(pte_val(pte)|(ext)))
#endif /* __ASSEMBLY__ */
#endif /* _ASM_PGTABLE_3LEVEL_H */

4
arch/arm/include/asm/pgtable-hwdef.h
View file

@ -10,6 +10,10 @@
#ifndef _ASMARM_PGTABLE_HWDEF_H
#define _ASMARM_PGTABLE_HWDEF_H
#ifdef CONFIG_ARM_LPAE
#include <asm/pgtable-3level-hwdef.h>
#else
#include <asm/pgtable-2level-hwdef.h>
#endif
#endif

55
arch/arm/include/asm/pgtable.h
View file

@ -11,20 +11,24 @@
#define _ASMARM_PGTABLE_H
#include <linux/const.h>
#include <asm-generic/4level-fixup.h>
#include <asm/proc-fns.h>
#ifndef CONFIG_MMU
#include <asm-generic/4level-fixup.h>
#include "pgtable-nommu.h"
#else
#include <asm-generic/pgtable-nopud.h>
#include <asm/memory.h>
#include <mach/vmalloc.h>
#include <asm/pgtable-hwdef.h>
#ifdef CONFIG_ARM_LPAE
#include <asm/pgtable-3level.h>
#else
#include <asm/pgtable-2level.h>
#endif
/*
* Just any arbitrary offset to the start of the vmalloc VM area: the
@ -33,15 +37,10 @@
* any out-of-bounds memory accesses will hopefully be caught.
* The vmalloc() routines leaves a hole of 4kB between each vmalloced
* area for the same reason. ;)
*
* Note that platforms may override VMALLOC_START, but they must provide
* VMALLOC_END. VMALLOC_END defines the (exclusive) limit of this space,
* which may not overlap IO space.
*/
#ifndef VMALLOC_START
#define VMALLOC_OFFSET (8*1024*1024)
#define VMALLOC_START (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
#endif
#define VMALLOC_END 0xff000000UL
#define LIBRARY_TEXT_START 0x0c000000
@ -163,39 +162,8 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
/* to find an entry in a kernel page-table-directory */
#define pgd_offset_k(addr) pgd_offset(&init_mm, addr)
/*
* The "pgd_xxx()" functions here are trivial for a folded two-level
* setup: the pgd is never bad, and a pmd always exists (as it's folded
* into the pgd entry)
*/
#define pgd_none(pgd) (0)
#define pgd_bad(pgd) (0)
#define pgd_present(pgd) (1)
#define pgd_clear(pgdp) do { } while (0)
#define set_pgd(pgd,pgdp) do { } while (0)
#define set_pud(pud,pudp) do { } while (0)
/* Find an entry in the second-level page table.. */
#define pmd_offset(dir, addr) ((pmd_t *)(dir))
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_present(pmd) (pmd_val(pmd))
#define pmd_bad(pmd) (pmd_val(pmd) & 2)
#define copy_pmd(pmdpd,pmdps) \
do { \
pmdpd[0] = pmdps[0]; \
pmdpd[1] = pmdps[1]; \
flush_pmd_entry(pmdpd); \
} while (0)
#define pmd_clear(pmdp) \
do { \
pmdp[0] = __pmd(0); \
pmdp[1] = __pmd(0); \
clean_pmd_entry(pmdp); \
} while (0)
static inline pte_t *pmd_page_vaddr(pmd_t pmd)
{
@ -204,10 +172,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
#define pmd_page(pmd) pfn_to_page(__phys_to_pfn(pmd_val(pmd) & PHYS_MASK))
/* we don't need complex calculations here as the pmd is folded into the pgd */
#define pmd_addr_end(addr,end) (end)
#ifndef CONFIG_HIGHPTE
#define __pte_map(pmd) pmd_page_vaddr(*(pmd))
#define __pte_unmap(pte) do { } while (0)
@ -229,7 +193,6 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
#define mk_pte(page,prot) pfn_pte(page_to_pfn(page), prot)
#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
#define pte_clear(mm,addr,ptep) set_pte_ext(ptep, __pte(0), 0)
#if __LINUX_ARM_ARCH__ < 6
@ -336,6 +299,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
* We provide our own arch_get_unmapped_area to cope with VIPT caches.
*/
#define HAVE_ARCH_UNMAPPED_AREA
#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
/*
* remap a physical page `pfn' of size `size' with page protection `prot'
@ -346,9 +310,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
#define pgtable_cache_init() do { } while (0)
void identity_mapping_add(pgd_t *, unsigned long, unsigned long);
void identity_mapping_del(pgd_t *, unsigned long, unsigned long);
#endif /* !__ASSEMBLY__ */
#endif /* CONFIG_MMU */

15
arch/arm/include/asm/pmu.h
View file

@ -27,13 +27,22 @@ enum arm_pmu_type {
/*
* struct arm_pmu_platdata - ARM PMU platform data
*
* @handle_irq: an optional handler which will be called from the interrupt and
* passed the address of the low level handler, and can be used to implement
* any platform specific handling before or after calling it.
* @handle_irq: an optional handler which will be called from the
* interrupt and passed the address of the low level handler,
* and can be used to implement any platform specific handling
* before or after calling it.
* @enable_irq: an optional handler which will be called after
* request_irq and be used to handle some platform specific
* irq enablement
* @disable_irq: an optional handler which will be called before
* free_irq and be used to handle some platform specific
* irq disablement
*/
struct arm_pmu_platdata {
irqreturn_t (*handle_irq)(int irq, void *dev,
irq_handler_t pmu_handler);
void (*enable_irq)(int irq);
void (*disable_irq)(int irq);
};
#ifdef CONFIG_CPU_HAS_PMU

21
arch/arm/include/asm/proc-fns.h
View file

@ -65,7 +65,11 @@ extern struct processor {
* Set a possibly extended PTE. Non-extended PTEs should
* ignore 'ext'.
*/
#ifdef CONFIG_ARM_LPAE
void (*set_pte_ext)(pte_t *ptep, pte_t pte);
#else
void (*set_pte_ext)(pte_t *ptep, pte_t pte, unsigned int ext);
#endif
/* Suspend/resume */
unsigned int suspend_size;
@ -79,7 +83,11 @@ extern void cpu_proc_fin(void);
extern int cpu_do_idle(void);
extern void cpu_dcache_clean_area(void *, int);
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
#ifdef CONFIG_ARM_LPAE
extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte);
#else
extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext);
#endif
extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
/* These three are private to arch/arm/kernel/suspend.c */
@ -107,6 +115,18 @@ extern void cpu_resume(void);
#define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
#ifdef CONFIG_ARM_LPAE
#define cpu_get_pgd() \
({ \
unsigned long pg, pg2; \
__asm__("mrrc p15, 0, %0, %1, c2" \
: "=r" (pg), "=r" (pg2) \
: \
: "cc"); \
pg &= ~(PTRS_PER_PGD*sizeof(pgd_t)-1); \
(pgd_t *)phys_to_virt(pg); \
})
#else
#define cpu_get_pgd() \
({ \
unsigned long pg; \
@ -115,6 +135,7 @@ extern void cpu_resume(void);
pg &= ~0x3fff; \
(pgd_t *)phys_to_virt(pg); \
})
#endif
#endif

2
arch/arm/include/asm/processor.h
View file

@ -123,6 +123,8 @@ static inline void prefetch(const void *ptr)
#endif
#define HAVE_ARCH_PICK_MMAP_LAYOUT
#endif
#endif /* __ASM_ARM_PROCESSOR_H */

108
arch/arm/include/asm/sched_clock.h
View file

@ -8,113 +8,7 @@
#ifndef ASM_SCHED_CLOCK
#define ASM_SCHED_CLOCK
#include <linux/kernel.h>
#include <linux/types.h>
struct clock_data {
u64 epoch_ns;
u32 epoch_cyc;
u32 epoch_cyc_copy;
u32 mult;
u32 shift;
};
#define DEFINE_CLOCK_DATA(name) struct clock_data name
static inline u64 cyc_to_ns(u64 cyc, u32 mult, u32 shift)
{
return (cyc * mult) >> shift;
}
/*
* Atomically update the sched_clock epoch. Your update callback will
* be called from a timer before the counter wraps - read the current
* counter value, and call this function to safely move the epochs
* forward. Only use this from the update callback.
*/
static inline void update_sched_clock(struct clock_data *cd, u32 cyc, u32 mask)
{
unsigned long flags;
u64 ns = cd->epoch_ns +
cyc_to_ns((cyc - cd->epoch_cyc) & mask, cd->mult, cd->shift);
/*
* Write epoch_cyc and epoch_ns in a way that the update is
* detectable in cyc_to_fixed_sched_clock().
*/
raw_local_irq_save(flags);
cd->epoch_cyc = cyc;
smp_wmb();
cd->epoch_ns = ns;
smp_wmb();
cd->epoch_cyc_copy = cyc;
raw_local_irq_restore(flags);
}
/*
* If your clock rate is known at compile time, using this will allow
* you to optimize the mult/shift loads away. This is paired with
* init_fixed_sched_clock() to ensure that your mult/shift are correct.
*/
static inline unsigned long long cyc_to_fixed_sched_clock(struct clock_data *cd,
u32 cyc, u32 mask, u32 mult, u32 shift)
{
u64 epoch_ns;
u32 epoch_cyc;
/*
* Load the epoch_cyc and epoch_ns atomically. We do this by
* ensuring that we always write epoch_cyc, epoch_ns and
* epoch_cyc_copy in strict order, and read them in strict order.
* If epoch_cyc and epoch_cyc_copy are not equal, then we're in
* the middle of an update, and we should repeat the load.
*/
do {
epoch_cyc = cd->epoch_cyc;
smp_rmb();
epoch_ns = cd->epoch_ns;
smp_rmb();
} while (epoch_cyc != cd->epoch_cyc_copy);
return epoch_ns + cyc_to_ns((cyc - epoch_cyc) & mask, mult, shift);
}
/*
* Otherwise, you need to use this, which will obtain the mult/shift
* from the clock_data structure. Use init_sched_clock() with this.
*/
static inline unsigned long long cyc_to_sched_clock(struct clock_data *cd,
u32 cyc, u32 mask)
{
return cyc_to_fixed_sched_clock(cd, cyc, mask, cd->mult, cd->shift);
}
/*
* Initialize the clock data - calculate the appropriate multiplier
* and shift. Also setup a timer to ensure that the epoch is refreshed
* at the appropriate time interval, which will call your update
* handler.
*/
void init_sched_clock(struct clock_data *, void (*)(void),
unsigned int, unsigned long);
/*
* Use this initialization function rather than init_sched_clock() if
* you're using cyc_to_fixed_sched_clock, which will warn if your
* constants are incorrect.
*/
static inline void init_fixed_sched_clock(struct clock_data *cd,
void (*update)(void), unsigned int bits, unsigned long rate,
u32 mult, u32 shift)
{
init_sched_clock(cd, update, bits, rate);
if (cd->mult != mult || cd->shift != shift) {
pr_crit("sched_clock: wrong multiply/shift: %u>>%u vs calculated %u>>%u\n"
"sched_clock: fix multiply/shift to avoid scheduler hiccups\n",
mult, shift, cd->mult, cd->shift);
}
}
extern void sched_clock_postinit(void);
extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
#endif

6
arch/arm/include/asm/setup.h
View file

@ -192,11 +192,7 @@ static const struct tagtable __tagtable_##fn __tag = { tag, fn }
/*
* Memory map description
*/
#ifdef CONFIG_ARCH_EP93XX
# define NR_BANKS 16
#else
# define NR_BANKS 8
#endif
#define NR_BANKS CONFIG_ARM_NR_BANKS
struct membank {
phys_addr_t start;

5
arch/arm/include/asm/swab.h
View file

@ -24,12 +24,13 @@
#if defined(__KERNEL__) && __LINUX_ARM_ARCH__ >= 6
static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
static inline __attribute_const__ __u32 __arch_swahb32(__u32 x)
{
__asm__ ("rev16 %0, %1" : "=r" (x) : "r" (x));
return x;
}
#define __arch_swab16 __arch_swab16
#define __arch_swahb32 __arch_swahb32
#define __arch_swab16(x) ((__u16)__arch_swahb32(x))
static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{

10
arch/arm/include/asm/system.h
View file

@ -80,6 +80,14 @@ struct siginfo;
void arm_notify_die(const char *str, struct pt_regs *regs, struct siginfo *info,
unsigned long err, unsigned long trap);
#ifdef CONFIG_ARM_LPAE
#define FAULT_CODE_ALIGNMENT 33
#define FAULT_CODE_DEBUG 34
#else
#define FAULT_CODE_ALIGNMENT 1
#define FAULT_CODE_DEBUG 2
#endif
void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
struct pt_regs *),
int sig, int code, const char *name);
@ -100,7 +108,7 @@ extern void __show_regs(struct pt_regs *);
extern int __pure cpu_architecture(void);
extern void cpu_init(void);
void arm_machine_restart(char mode, const char *cmd);
void soft_restart(unsigned long);
extern void (*arm_pm_restart)(char str, const char *cmd);
#define UDBG_UNDEFINED (1 << 0)

12
arch/arm/include/asm/tlb.h
View file

@ -202,8 +202,18 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
tlb_remove_page(tlb, pte);
}
static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp,
unsigned long addr)
{
#ifdef CONFIG_ARM_LPAE
tlb_add_flush(tlb, addr);
tlb_remove_page(tlb, virt_to_page(pmdp));
#endif
}
#define pte_free_tlb(tlb, ptep, addr) __pte_free_tlb(tlb, ptep, addr)
#define pmd_free_tlb(tlb, pmdp, addr) pmd_free((tlb)->mm, pmdp)
#define pmd_free_tlb(tlb, pmdp, addr) __pmd_free_tlb(tlb, pmdp, addr)
#define pud_free_tlb(tlb, pudp, addr) pud_free((tlb)->mm, pudp)
#define tlb_migrate_finish(mm) do { } while (0)

2
arch/arm/kernel/Makefile
View file

@ -13,7 +13,7 @@ CFLAGS_REMOVE_return_address.o = -pg
# Object file lists.
obj-y := elf.o entry-armv.o entry-common.o irq.o \
obj-y := elf.o entry-armv.o entry-common.o irq.o opcodes.o \
process.o ptrace.o return_address.o setup.o signal.o \
sys_arm.o stacktrace.o time.o traps.o

7
arch/arm/kernel/entry-armv.S
View file

@ -36,12 +36,11 @@
#ifdef CONFIG_MULTI_IRQ_HANDLER
ldr r1, =handle_arch_irq
mov r0, sp
ldr r1, [r1]
adr lr, BSYM(9997f)
teq r1, #0
movne pc, r1
#endif
ldr pc, [r1]
#else
arch_irq_handler_default
#endif
9997:
.endm

65
arch/arm/kernel/head.S
View file

@ -39,8 +39,14 @@
#error KERNEL_RAM_VADDR must start at 0xXXXX8000
#endif
#ifdef CONFIG_ARM_LPAE
/* LPAE requires an additional page for the PGD */
#define PG_DIR_SIZE 0x5000
#define PMD_ORDER 3
#else
#define PG_DIR_SIZE 0x4000
#define PMD_ORDER 2
#endif
.globl swapper_pg_dir
.equ swapper_pg_dir, KERNEL_RAM_VADDR - PG_DIR_SIZE
@ -164,17 +170,36 @@ __create_page_tables:
teq r0, r6
bne 1b
#ifdef CONFIG_ARM_LPAE
/*
* Build the PGD table (first level) to point to the PMD table. A PGD
* entry is 64-bit wide.
*/
mov r0, r4
add r3, r4, #0x1000 @ first PMD table address
orr r3, r3, #3 @ PGD block type
mov r6, #4 @ PTRS_PER_PGD
mov r7, #1 << (55 - 32) @ L_PGD_SWAPPER
1: str r3, [r0], #4 @ set bottom PGD entry bits
str r7, [r0], #4 @ set top PGD entry bits
add r3, r3, #0x1000 @ next PMD table
subs r6, r6, #1
bne 1b
add r4, r4, #0x1000 @ point to the PMD tables
#endif
ldr r7, [r10, #PROCINFO_MM_MMUFLAGS] @ mm_mmuflags
/*
* Create identity mapping to cater for __enable_mmu.
* This identity mapping will be removed by paging_init().
*/
adr r0, __enable_mmu_loc
adr r0, __turn_mmu_on_loc
ldmia r0, {r3, r5, r6}
sub r0, r0, r3 @ virt->phys offset
add r5, r5, r0 @ phys __enable_mmu
add r6, r6, r0 @ phys __enable_mmu_end
add r5, r5, r0 @ phys __turn_mmu_on
add r6, r6, r0 @ phys __turn_mmu_on_end
mov r5, r5, lsr #SECTION_SHIFT
mov r6, r6, lsr #SECTION_SHIFT
@ -219,8 +244,8 @@ __create_page_tables:
#endif
/*
* Then map boot params address in r2 or
* the first 1MB of ram if boot params address is not specified.
* Then map boot params address in r2 or the first 1MB (2MB with LPAE)
* of ram if boot params address is not specified.
*/
mov r0, r2, lsr #SECTION_SHIFT
movs r0, r0, lsl #SECTION_SHIFT
@ -251,7 +276,15 @@ __create_page_tables:
mov r3, r7, lsr #SECTION_SHIFT
ldr r7, [r10, #PROCINFO_IO_MMUFLAGS] @ io_mmuflags
orr r3, r7, r3, lsl #SECTION_SHIFT
#ifdef CONFIG_ARM_LPAE
mov r7, #1 << (54 - 32) @ XN
#else
orr r3, r3, #PMD_SECT_XN
#endif
1: str r3, [r0], #4
#ifdef CONFIG_ARM_LPAE
str r7, [r0], #4
#endif
add r3, r3, #1 << SECTION_SHIFT
cmp r0, r6
blo 1b
@ -282,15 +315,18 @@ __create_page_tables:
add r0, r4, #0xd8000000 >> (SECTION_SHIFT - PMD_ORDER)
str r3, [r0]
#endif
#endif
#ifdef CONFIG_ARM_LPAE
sub r4, r4, #0x1000 @ point to the PGD table
#endif
mov pc, lr
ENDPROC(__create_page_tables)
.ltorg
.align
__enable_mmu_loc:
__turn_mmu_on_loc:
.long .
.long __enable_mmu
.long __enable_mmu_end
.long __turn_mmu_on
.long __turn_mmu_on_end
#if defined(CONFIG_SMP)
__CPUINIT
@ -374,12 +410,17 @@ __enable_mmu:
#ifdef CONFIG_CPU_ICACHE_DISABLE
bic r0, r0, #CR_I
#endif
#ifdef CONFIG_ARM_LPAE
mov r5, #0
mcrr p15, 0, r4, r5, c2 @ load TTBR0
#else
mov r5, #(domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \
domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \
domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \
domain_val(DOMAIN_IO, DOMAIN_CLIENT))
mcr p15, 0, r5, c3, c0, 0 @ load domain access register
mcr p15, 0, r4, c2, c0, 0 @ load page table pointer
#endif
b __turn_mmu_on
ENDPROC(__enable_mmu)
@ -398,15 +439,19 @@ ENDPROC(__enable_mmu)
* other registers depend on the function called upon completion
*/
.align 5
__turn_mmu_on:
.pushsection .idmap.text, "ax"
ENTRY(__turn_mmu_on)
mov r0, r0
instr_sync
mcr p15, 0, r0, c1, c0, 0 @ write control reg
mrc p15, 0, r3, c0, c0, 0 @ read id reg
instr_sync
mov r3, r3
mov r3, r13
mov pc, r3
__enable_mmu_end:
__turn_mmu_on_end:
ENDPROC(__turn_mmu_on)
.popsection
#ifdef CONFIG_SMP_ON_UP

8
arch/arm/kernel/hw_breakpoint.c
View file

@ -1016,10 +1016,10 @@ static int __init arch_hw_breakpoint_init(void)
}
/* Register debug fault handler. */
hook_fault_code(2, hw_breakpoint_pending, SIGTRAP, TRAP_HWBKPT,
"watchpoint debug exception");
hook_ifault_code(2, hw_breakpoint_pending, SIGTRAP, TRAP_HWBKPT,
"breakpoint debug exception");
hook_fault_code(FAULT_CODE_DEBUG, hw_breakpoint_pending, SIGTRAP,
TRAP_HWBKPT, "watchpoint debug exception");
hook_ifault_code(FAULT_CODE_DEBUG, hw_breakpoint_pending, SIGTRAP,
TRAP_HWBKPT, "breakpoint debug exception");
/* Register hotplug notifier. */
register_cpu_notifier(&dbg_reset_nb);

66
arch/arm/kernel/kprobes-test.c
View file

@ -202,6 +202,8 @@
#include <linux/slab.h>
#include <linux/kprobes.h>
#include <asm/opcodes.h>
#include "kprobes.h"
#include "kprobes-test.h"
@ -1050,65 +1052,9 @@ static int test_instance;
static unsigned long test_check_cc(int cc, unsigned long cpsr)
{
unsigned long temp;
int ret = arm_check_condition(cc << 28, cpsr);
switch (cc) {
case 0x0: /* eq */
return cpsr & PSR_Z_BIT;
case 0x1: /* ne */
return (~cpsr) & PSR_Z_BIT;
case 0x2: /* cs */
return cpsr & PSR_C_BIT;
case 0x3: /* cc */
return (~cpsr) & PSR_C_BIT;
case 0x4: /* mi */
return cpsr & PSR_N_BIT;
case 0x5: /* pl */
return (~cpsr) & PSR_N_BIT;
case 0x6: /* vs */
return cpsr & PSR_V_BIT;
case 0x7: /* vc */
return (~cpsr) & PSR_V_BIT;
case 0x8: /* hi */
cpsr &= ~(cpsr >> 1); /* PSR_C_BIT &= ~PSR_Z_BIT */
return cpsr & PSR_C_BIT;
case 0x9: /* ls */
cpsr &= ~(cpsr >> 1); /* PSR_C_BIT &= ~PSR_Z_BIT */
return (~cpsr) & PSR_C_BIT;
case 0xa: /* ge */
cpsr ^= (cpsr << 3); /* PSR_N_BIT ^= PSR_V_BIT */
return (~cpsr) & PSR_N_BIT;
case 0xb: /* lt */
cpsr ^= (cpsr << 3); /* PSR_N_BIT ^= PSR_V_BIT */
return cpsr & PSR_N_BIT;
case 0xc: /* gt */
temp = cpsr ^ (cpsr << 3); /* PSR_N_BIT ^= PSR_V_BIT */
temp |= (cpsr << 1); /* PSR_N_BIT |= PSR_Z_BIT */
return (~temp) & PSR_N_BIT;
case 0xd: /* le */
temp = cpsr ^ (cpsr << 3); /* PSR_N_BIT ^= PSR_V_BIT */
temp |= (cpsr << 1); /* PSR_N_BIT |= PSR_Z_BIT */
return temp & PSR_N_BIT;
case 0xe: /* al */
case 0xf: /* unconditional */
return true;
}
BUG();
return false;
return (ret != ARM_OPCODE_CONDTEST_FAIL);
}
static int is_last_scenario;
@ -1128,7 +1074,9 @@ static unsigned long test_context_cpsr(int scenario)
if (!test_case_is_thumb) {
/* Testing ARM code */
probe_should_run = test_check_cc(current_instruction >> 28, cpsr) != 0;
int cc = current_instruction >> 28;
probe_should_run = test_check_cc(cc, cpsr) != 0;
if (scenario == 15)
is_last_scenario = true;

15
arch/arm/kernel/machine_kexec.c
View file

@ -12,12 +12,11 @@
#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
#include <asm/mach-types.h>
#include <asm/system.h>
extern const unsigned char relocate_new_kernel[];
extern const unsigned int relocate_new_kernel_size;
extern void setup_mm_for_reboot(char mode);
extern unsigned long kexec_start_address;
extern unsigned long kexec_indirection_page;
extern unsigned long kexec_mach_type;
@ -111,14 +110,6 @@ void machine_kexec(struct kimage *image)
if (kexec_reinit)
kexec_reinit();
local_irq_disable();
local_fiq_disable();
setup_mm_for_reboot(0); /* mode is not used, so just pass 0*/
flush_cache_all();
outer_flush_all();
outer_disable();
cpu_proc_fin();
outer_inv_all();
flush_cache_all();
cpu_reset(reboot_code_buffer_phys);
soft_restart(reboot_code_buffer_phys);
}

72
arch/arm/kernel/opcodes.c Normal file
View file

@ -0,0 +1,72 @@
/*
* linux/arch/arm/kernel/opcodes.c
*
* A32 condition code lookup feature moved from nwfpe/fpopcode.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <asm/opcodes.h>
#define ARM_OPCODE_CONDITION_UNCOND 0xf
/*
* condition code lookup table
* index into the table is test code: EQ, NE, ... LT, GT, AL, NV
*
* bit position in short is condition code: NZCV
*/
static const unsigned short cc_map[16] = {
0xF0F0, /* EQ == Z set */
0x0F0F, /* NE */
0xCCCC, /* CS == C set */
0x3333, /* CC */
0xFF00, /* MI == N set */
0x00FF, /* PL */
0xAAAA, /* VS == V set */
0x5555, /* VC */
0x0C0C, /* HI == C set && Z clear */
0xF3F3, /* LS == C clear || Z set */
0xAA55, /* GE == (N==V) */
0x55AA, /* LT == (N!=V) */
0x0A05, /* GT == (!Z && (N==V)) */
0xF5FA, /* LE == (Z || (N!=V)) */
0xFFFF, /* AL always */
0 /* NV */
};
/*
* Returns:
* ARM_OPCODE_CONDTEST_FAIL - if condition fails
* ARM_OPCODE_CONDTEST_PASS - if condition passes (including AL)
* ARM_OPCODE_CONDTEST_UNCOND - if NV condition, or separate unconditional
* opcode space from v5 onwards
*
* Code that tests whether a conditional instruction would pass its condition
* check should check that return value == ARM_OPCODE_CONDTEST_PASS.
*
* Code that tests if a condition means that the instruction would be executed
* (regardless of conditional or unconditional) should instead check that the
* return value != ARM_OPCODE_CONDTEST_FAIL.
*/
asmlinkage unsigned int arm_check_condition(u32 opcode, u32 psr)
{
u32 cc_bits = opcode >> 28;
u32 psr_cond = psr >> 28;
unsigned int ret;
if (cc_bits != ARM_OPCODE_CONDITION_UNCOND) {
if ((cc_map[cc_bits] >> (psr_cond)) & 1)
ret = ARM_OPCODE_CONDTEST_PASS;
else
ret = ARM_OPCODE_CONDTEST_FAIL;
} else {
ret = ARM_OPCODE_CONDTEST_UNCOND;
}
return ret;
}
EXPORT_SYMBOL_GPL(arm_check_condition);

19
arch/arm/kernel/perf_event.c
View file

@ -59,8 +59,7 @@ armpmu_get_pmu_id(void)
}
EXPORT_SYMBOL_GPL(armpmu_get_pmu_id);
int
armpmu_get_max_events(void)
int perf_num_counters(void)
{
int max_events = 0;
@ -69,12 +68,6 @@ armpmu_get_max_events(void)
return max_events;
}
EXPORT_SYMBOL_GPL(armpmu_get_max_events);
int perf_num_counters(void)
{
return armpmu_get_max_events();
}
EXPORT_SYMBOL_GPL(perf_num_counters);
#define HW_OP_UNSUPPORTED 0xFFFF
@ -380,6 +373,8 @@ armpmu_release_hardware(struct arm_pmu *armpmu)
{
int i, irq, irqs;
struct platform_device *pmu_device = armpmu->plat_device;
struct arm_pmu_platdata *plat =
dev_get_platdata(&pmu_device->dev);
irqs = min(pmu_device->num_resources, num_possible_cpus());
@ -387,8 +382,11 @@ armpmu_release_hardware(struct arm_pmu *armpmu)
if (!cpumask_test_and_clear_cpu(i, &armpmu->active_irqs))
continue;
irq = platform_get_irq(pmu_device, i);
if (irq >= 0)
if (irq >= 0) {
if (plat && plat->disable_irq)
plat->disable_irq(irq);
free_irq(irq, armpmu);
}
}
release_pmu(armpmu->type);
@ -448,7 +446,8 @@ armpmu_reserve_hardware(struct arm_pmu *armpmu)
irq);
armpmu_release_hardware(armpmu);
return err;
}
} else if (plat && plat->enable_irq)
plat->enable_irq(irq);
cpumask_set_cpu(i, &armpmu->active_irqs);
}

32
arch/arm/kernel/perf_event_v6.c
View file

@ -65,13 +65,15 @@ enum armv6_counters {
* accesses/misses in hardware.
*/
static const unsigned armv6_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = ARMV6_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV6_PERFCTR_INSTR_EXEC,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV6_PERFCTR_BR_EXEC,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV6_PERFCTR_BR_MISPREDICT,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CPU_CYCLES] = ARMV6_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV6_PERFCTR_INSTR_EXEC,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV6_PERFCTR_BR_EXEC,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV6_PERFCTR_BR_MISPREDICT,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV6_PERFCTR_IBUF_STALL,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV6_PERFCTR_LSU_FULL_STALL,
};
static const unsigned armv6_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@ -218,13 +220,15 @@ enum armv6mpcore_perf_types {
* accesses/misses in hardware.
*/
static const unsigned armv6mpcore_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = ARMV6MPCORE_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV6MPCORE_PERFCTR_INSTR_EXEC,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV6MPCORE_PERFCTR_BR_EXEC,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV6MPCORE_PERFCTR_BR_MISPREDICT,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CPU_CYCLES] = ARMV6MPCORE_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV6MPCORE_PERFCTR_INSTR_EXEC,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV6MPCORE_PERFCTR_BR_EXEC,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV6MPCORE_PERFCTR_BR_MISPREDICT,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV6MPCORE_PERFCTR_IBUF_STALL,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV6MPCORE_PERFCTR_LSU_FULL_STALL,
};
static const unsigned armv6mpcore_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]

399
arch/arm/kernel/perf_event_v7.c
View file

@ -28,165 +28,87 @@ static struct arm_pmu armv7pmu;
* they are not available.
*/
enum armv7_perf_types {
ARMV7_PERFCTR_PMNC_SW_INCR = 0x00,
ARMV7_PERFCTR_IFETCH_MISS = 0x01,
ARMV7_PERFCTR_ITLB_MISS = 0x02,
ARMV7_PERFCTR_DCACHE_REFILL = 0x03, /* L1 */
ARMV7_PERFCTR_DCACHE_ACCESS = 0x04, /* L1 */
ARMV7_PERFCTR_DTLB_REFILL = 0x05,
ARMV7_PERFCTR_DREAD = 0x06,
ARMV7_PERFCTR_DWRITE = 0x07,
ARMV7_PERFCTR_INSTR_EXECUTED = 0x08,
ARMV7_PERFCTR_EXC_TAKEN = 0x09,
ARMV7_PERFCTR_EXC_EXECUTED = 0x0A,
ARMV7_PERFCTR_CID_WRITE = 0x0B,
/* ARMV7_PERFCTR_PC_WRITE is equivalent to HW_BRANCH_INSTRUCTIONS.
ARMV7_PERFCTR_PMNC_SW_INCR = 0x00,
ARMV7_PERFCTR_L1_ICACHE_REFILL = 0x01,
ARMV7_PERFCTR_ITLB_REFILL = 0x02,
ARMV7_PERFCTR_L1_DCACHE_REFILL = 0x03,
ARMV7_PERFCTR_L1_DCACHE_ACCESS = 0x04,
ARMV7_PERFCTR_DTLB_REFILL = 0x05,
ARMV7_PERFCTR_MEM_READ = 0x06,
ARMV7_PERFCTR_MEM_WRITE = 0x07,
ARMV7_PERFCTR_INSTR_EXECUTED = 0x08,
ARMV7_PERFCTR_EXC_TAKEN = 0x09,
ARMV7_PERFCTR_EXC_EXECUTED = 0x0A,
ARMV7_PERFCTR_CID_WRITE = 0x0B,
/*
* ARMV7_PERFCTR_PC_WRITE is equivalent to HW_BRANCH_INSTRUCTIONS.
* It counts:
* - all branch instructions,
* - all (taken) branch instructions,
* - instructions that explicitly write the PC,
* - exception generating instructions.
*/
ARMV7_PERFCTR_PC_WRITE = 0x0C,
ARMV7_PERFCTR_PC_IMM_BRANCH = 0x0D,
ARMV7_PERFCTR_PC_PROC_RETURN = 0x0E,
ARMV7_PERFCTR_UNALIGNED_ACCESS = 0x0F,
ARMV7_PERFCTR_PC_WRITE = 0x0C,
ARMV7_PERFCTR_PC_IMM_BRANCH = 0x0D,
ARMV7_PERFCTR_PC_PROC_RETURN = 0x0E,
ARMV7_PERFCTR_MEM_UNALIGNED_ACCESS = 0x0F,
ARMV7_PERFCTR_PC_BRANCH_MIS_PRED = 0x10,
ARMV7_PERFCTR_CLOCK_CYCLES = 0x11,
ARMV7_PERFCTR_PC_BRANCH_PRED = 0x12,
/* These events are defined by the PMUv2 supplement (ARM DDI 0457A). */
ARMV7_PERFCTR_PC_BRANCH_MIS_PRED = 0x10,
ARMV7_PERFCTR_CLOCK_CYCLES = 0x11,
ARMV7_PERFCTR_PC_BRANCH_PRED = 0x12,
ARMV7_PERFCTR_MEM_ACCESS = 0x13,
ARMV7_PERFCTR_L1_ICACHE_ACCESS = 0x14,
ARMV7_PERFCTR_L1_DCACHE_WB = 0x15,
ARMV7_PERFCTR_L2_DCACHE_ACCESS = 0x16,
ARMV7_PERFCTR_L2_DCACHE_REFILL = 0x17,
ARMV7_PERFCTR_L2_DCACHE_WB = 0x18,
ARMV7_PERFCTR_BUS_ACCESS = 0x19,
ARMV7_PERFCTR_MEMORY_ERROR = 0x1A,
ARMV7_PERFCTR_INSTR_SPEC = 0x1B,
ARMV7_PERFCTR_TTBR_WRITE = 0x1C,
ARMV7_PERFCTR_BUS_CYCLES = 0x1D,
ARMV7_PERFCTR_MEM_ACCESS = 0x13,
ARMV7_PERFCTR_L1_ICACHE_ACCESS = 0x14,
ARMV7_PERFCTR_L1_DCACHE_WB = 0x15,
ARMV7_PERFCTR_L2_CACHE_ACCESS = 0x16,
ARMV7_PERFCTR_L2_CACHE_REFILL = 0x17,
ARMV7_PERFCTR_L2_CACHE_WB = 0x18,
ARMV7_PERFCTR_BUS_ACCESS = 0x19,
ARMV7_PERFCTR_MEM_ERROR = 0x1A,
ARMV7_PERFCTR_INSTR_SPEC = 0x1B,
ARMV7_PERFCTR_TTBR_WRITE = 0x1C,
ARMV7_PERFCTR_BUS_CYCLES = 0x1D,
ARMV7_PERFCTR_CPU_CYCLES = 0xFF
ARMV7_PERFCTR_CPU_CYCLES = 0xFF
};
/* ARMv7 Cortex-A8 specific event types */
enum armv7_a8_perf_types {
ARMV7_PERFCTR_WRITE_BUFFER_FULL = 0x40,
ARMV7_PERFCTR_L2_STORE_MERGED = 0x41,
ARMV7_PERFCTR_L2_STORE_BUFF = 0x42,
ARMV7_PERFCTR_L2_ACCESS = 0x43,
ARMV7_PERFCTR_L2_CACH_MISS = 0x44,
ARMV7_PERFCTR_AXI_READ_CYCLES = 0x45,
ARMV7_PERFCTR_AXI_WRITE_CYCLES = 0x46,
ARMV7_PERFCTR_MEMORY_REPLAY = 0x47,
ARMV7_PERFCTR_UNALIGNED_ACCESS_REPLAY = 0x48,
ARMV7_PERFCTR_L1_DATA_MISS = 0x49,
ARMV7_PERFCTR_L1_INST_MISS = 0x4A,
ARMV7_PERFCTR_L1_DATA_COLORING = 0x4B,
ARMV7_PERFCTR_L1_NEON_DATA = 0x4C,
ARMV7_PERFCTR_L1_NEON_CACH_DATA = 0x4D,
ARMV7_PERFCTR_L2_NEON = 0x4E,
ARMV7_PERFCTR_L2_NEON_HIT = 0x4F,
ARMV7_PERFCTR_L1_INST = 0x50,
ARMV7_PERFCTR_PC_RETURN_MIS_PRED = 0x51,
ARMV7_PERFCTR_PC_BRANCH_FAILED = 0x52,
ARMV7_PERFCTR_PC_BRANCH_TAKEN = 0x53,
ARMV7_PERFCTR_PC_BRANCH_EXECUTED = 0x54,
ARMV7_PERFCTR_OP_EXECUTED = 0x55,
ARMV7_PERFCTR_CYCLES_INST_STALL = 0x56,
ARMV7_PERFCTR_CYCLES_INST = 0x57,
ARMV7_PERFCTR_CYCLES_NEON_DATA_STALL = 0x58,
ARMV7_PERFCTR_CYCLES_NEON_INST_STALL = 0x59,
ARMV7_PERFCTR_NEON_CYCLES = 0x5A,
ARMV7_PERFCTR_PMU0_EVENTS = 0x70,
ARMV7_PERFCTR_PMU1_EVENTS = 0x71,
ARMV7_PERFCTR_PMU_EVENTS = 0x72,
ARMV7_A8_PERFCTR_L2_CACHE_ACCESS = 0x43,
ARMV7_A8_PERFCTR_L2_CACHE_REFILL = 0x44,
ARMV7_A8_PERFCTR_L1_ICACHE_ACCESS = 0x50,
ARMV7_A8_PERFCTR_STALL_ISIDE = 0x56,
};
/* ARMv7 Cortex-A9 specific event types */
enum armv7_a9_perf_types {
ARMV7_PERFCTR_JAVA_HW_BYTECODE_EXEC = 0x40,
ARMV7_PERFCTR_JAVA_SW_BYTECODE_EXEC = 0x41,
ARMV7_PERFCTR_JAZELLE_BRANCH_EXEC = 0x42,
ARMV7_PERFCTR_COHERENT_LINE_MISS = 0x50,
ARMV7_PERFCTR_COHERENT_LINE_HIT = 0x51,
ARMV7_PERFCTR_ICACHE_DEP_STALL_CYCLES = 0x60,
ARMV7_PERFCTR_DCACHE_DEP_STALL_CYCLES = 0x61,
ARMV7_PERFCTR_TLB_MISS_DEP_STALL_CYCLES = 0x62,
ARMV7_PERFCTR_STREX_EXECUTED_PASSED = 0x63,
ARMV7_PERFCTR_STREX_EXECUTED_FAILED = 0x64,
ARMV7_PERFCTR_DATA_EVICTION = 0x65,
ARMV7_PERFCTR_ISSUE_STAGE_NO_INST = 0x66,
ARMV7_PERFCTR_ISSUE_STAGE_EMPTY = 0x67,
ARMV7_PERFCTR_INST_OUT_OF_RENAME_STAGE = 0x68,
ARMV7_PERFCTR_PREDICTABLE_FUNCT_RETURNS = 0x6E,
ARMV7_PERFCTR_MAIN_UNIT_EXECUTED_INST = 0x70,
ARMV7_PERFCTR_SECOND_UNIT_EXECUTED_INST = 0x71,
ARMV7_PERFCTR_LD_ST_UNIT_EXECUTED_INST = 0x72,
ARMV7_PERFCTR_FP_EXECUTED_INST = 0x73,
ARMV7_PERFCTR_NEON_EXECUTED_INST = 0x74,
ARMV7_PERFCTR_PLD_FULL_DEP_STALL_CYCLES = 0x80,
ARMV7_PERFCTR_DATA_WR_DEP_STALL_CYCLES = 0x81,
ARMV7_PERFCTR_ITLB_MISS_DEP_STALL_CYCLES = 0x82,
ARMV7_PERFCTR_DTLB_MISS_DEP_STALL_CYCLES = 0x83,
ARMV7_PERFCTR_MICRO_ITLB_MISS_DEP_STALL_CYCLES = 0x84,
ARMV7_PERFCTR_MICRO_DTLB_MISS_DEP_STALL_CYCLES = 0x85,
ARMV7_PERFCTR_DMB_DEP_STALL_CYCLES = 0x86,
ARMV7_PERFCTR_INTGR_CLK_ENABLED_CYCLES = 0x8A,
ARMV7_PERFCTR_DATA_ENGINE_CLK_EN_CYCLES = 0x8B,
ARMV7_PERFCTR_ISB_INST = 0x90,
ARMV7_PERFCTR_DSB_INST = 0x91,
ARMV7_PERFCTR_DMB_INST = 0x92,
ARMV7_PERFCTR_EXT_INTERRUPTS = 0x93,
ARMV7_PERFCTR_PLE_CACHE_LINE_RQST_COMPLETED = 0xA0,
ARMV7_PERFCTR_PLE_CACHE_LINE_RQST_SKIPPED = 0xA1,
ARMV7_PERFCTR_PLE_FIFO_FLUSH = 0xA2,
ARMV7_PERFCTR_PLE_RQST_COMPLETED = 0xA3,
ARMV7_PERFCTR_PLE_FIFO_OVERFLOW = 0xA4,
ARMV7_PERFCTR_PLE_RQST_PROG = 0xA5
ARMV7_A9_PERFCTR_INSTR_CORE_RENAME = 0x68,
ARMV7_A9_PERFCTR_STALL_ICACHE = 0x60,
ARMV7_A9_PERFCTR_STALL_DISPATCH = 0x66,
};
/* ARMv7 Cortex-A5 specific event types */
enum armv7_a5_perf_types {
ARMV7_PERFCTR_IRQ_TAKEN = 0x86,
ARMV7_PERFCTR_FIQ_TAKEN = 0x87,
ARMV7_PERFCTR_EXT_MEM_RQST = 0xc0,
ARMV7_PERFCTR_NC_EXT_MEM_RQST = 0xc1,
ARMV7_PERFCTR_PREFETCH_LINEFILL = 0xc2,
ARMV7_PERFCTR_PREFETCH_LINEFILL_DROP = 0xc3,
ARMV7_PERFCTR_ENTER_READ_ALLOC = 0xc4,
ARMV7_PERFCTR_READ_ALLOC = 0xc5,
ARMV7_PERFCTR_STALL_SB_FULL = 0xc9,
ARMV7_A5_PERFCTR_PREFETCH_LINEFILL = 0xc2,
ARMV7_A5_PERFCTR_PREFETCH_LINEFILL_DROP = 0xc3,
};
/* ARMv7 Cortex-A15 specific event types */
enum armv7_a15_perf_types {
ARMV7_PERFCTR_L1_DCACHE_READ_ACCESS = 0x40,
ARMV7_PERFCTR_L1_DCACHE_WRITE_ACCESS = 0x41,
ARMV7_PERFCTR_L1_DCACHE_READ_REFILL = 0x42,
ARMV7_PERFCTR_L1_DCACHE_WRITE_REFILL = 0x43,
ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_READ = 0x40,
ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_WRITE = 0x41,
ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_READ = 0x42,
ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_WRITE = 0x43,
ARMV7_PERFCTR_L1_DTLB_READ_REFILL = 0x4C,
ARMV7_PERFCTR_L1_DTLB_WRITE_REFILL = 0x4D,
ARMV7_A15_PERFCTR_DTLB_REFILL_L1_READ = 0x4C,
ARMV7_A15_PERFCTR_DTLB_REFILL_L1_WRITE = 0x4D,
ARMV7_PERFCTR_L2_DCACHE_READ_ACCESS = 0x50,
ARMV7_PERFCTR_L2_DCACHE_WRITE_ACCESS = 0x51,
ARMV7_PERFCTR_L2_DCACHE_READ_REFILL = 0x52,
ARMV7_PERFCTR_L2_DCACHE_WRITE_REFILL = 0x53,
ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_READ = 0x50,
ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_WRITE = 0x51,
ARMV7_A15_PERFCTR_L2_CACHE_REFILL_READ = 0x52,
ARMV7_A15_PERFCTR_L2_CACHE_REFILL_WRITE = 0x53,
ARMV7_PERFCTR_SPEC_PC_WRITE = 0x76,
ARMV7_A15_PERFCTR_PC_WRITE_SPEC = 0x76,
};
/*
@ -197,13 +119,15 @@ enum armv7_a15_perf_types {
* accesses/misses in hardware.
*/
static const unsigned armv7_a8_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV7_PERFCTR_INSTR_EXECUTED,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = ARMV7_PERFCTR_CLOCK_CYCLES,
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV7_PERFCTR_INSTR_EXECUTED,
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[PERF_COUNT_HW_CACHE_MISSES] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV7_A8_PERFCTR_STALL_ISIDE,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = HW_OP_UNSUPPORTED,
};
static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@ -217,12 +141,12 @@ static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
* combined.
*/
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_DCACHE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_DCACHE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -231,12 +155,12 @@ static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
},
[C(L1I)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_INST,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_INST_MISS,
[C(RESULT_ACCESS)] = ARMV7_A8_PERFCTR_L1_ICACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_INST,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_INST_MISS,
[C(RESULT_ACCESS)] = ARMV7_A8_PERFCTR_L1_ICACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -245,12 +169,12 @@ static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
},
[C(LL)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L2_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L2_CACH_MISS,
[C(RESULT_ACCESS)] = ARMV7_A8_PERFCTR_L2_CACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_A8_PERFCTR_L2_CACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L2_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L2_CACH_MISS,
[C(RESULT_ACCESS)] = ARMV7_A8_PERFCTR_L2_CACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_A8_PERFCTR_L2_CACHE_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -274,11 +198,11 @@ static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(ITLB)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -287,14 +211,12 @@ static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
},
[C(BPU)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_WRITE,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_WRITE,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -321,14 +243,15 @@ static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
* Cortex-A9 HW events mapping
*/
static const unsigned armv7_a9_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] =
ARMV7_PERFCTR_INST_OUT_OF_RENAME_STAGE,
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV7_PERFCTR_DCACHE_ACCESS,
[PERF_COUNT_HW_CACHE_MISSES] = ARMV7_PERFCTR_DCACHE_REFILL,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = ARMV7_PERFCTR_CLOCK_CYCLES,
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV7_A9_PERFCTR_INSTR_CORE_RENAME,
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[PERF_COUNT_HW_CACHE_MISSES] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV7_A9_PERFCTR_STALL_ICACHE,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV7_A9_PERFCTR_STALL_DISPATCH,
};
static const unsigned armv7_a9_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@ -342,12 +265,12 @@ static const unsigned armv7_a9_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
* combined.
*/
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_DCACHE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_DCACHE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -357,11 +280,11 @@ static const unsigned armv7_a9_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(L1I)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_IFETCH_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_IFETCH_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -399,11 +322,11 @@ static const unsigned armv7_a9_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(ITLB)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -412,14 +335,12 @@ static const unsigned armv7_a9_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
},
[C(BPU)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_WRITE,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_WRITE,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -446,13 +367,15 @@ static const unsigned armv7_a9_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
* Cortex-A5 HW events mapping
*/
static const unsigned armv7_a5_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV7_PERFCTR_INSTR_EXECUTED,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV7_PERFCTR_INSTR_EXECUTED,
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[PERF_COUNT_HW_CACHE_MISSES] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = HW_OP_UNSUPPORTED,
};
static const unsigned armv7_a5_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@ -460,42 +383,34 @@ static const unsigned armv7_a5_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
[C(L1D)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_DCACHE_ACCESS,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_DCACHE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_DCACHE_ACCESS,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_DCACHE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_PREFETCH_LINEFILL,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PREFETCH_LINEFILL_DROP,
[C(RESULT_ACCESS)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL,
[C(RESULT_MISS)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL_DROP,
},
},
[C(L1I)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_IFETCH_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_IFETCH_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
/*
* The prefetch counters don't differentiate between the I
* side and the D side.
*/
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_PREFETCH_LINEFILL,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PREFETCH_LINEFILL_DROP,
[C(RESULT_ACCESS)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL,
[C(RESULT_MISS)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL_DROP,
},
},
[C(LL)] = {
@ -529,11 +444,11 @@ static const unsigned armv7_a5_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(ITLB)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -543,13 +458,11 @@ static const unsigned armv7_a5_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(BPU)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -562,13 +475,15 @@ static const unsigned armv7_a5_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
* Cortex-A15 HW events mapping
*/
static const unsigned armv7_a15_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV7_PERFCTR_INSTR_EXECUTED,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_PERFCTR_SPEC_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = ARMV7_PERFCTR_BUS_CYCLES,
[PERF_COUNT_HW_CPU_CYCLES] = ARMV7_PERFCTR_CPU_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV7_PERFCTR_INSTR_EXECUTED,
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV7_PERFCTR_L1_DCACHE_ACCESS,
[PERF_COUNT_HW_CACHE_MISSES] = ARMV7_PERFCTR_L1_DCACHE_REFILL,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV7_A15_PERFCTR_PC_WRITE_SPEC,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = ARMV7_PERFCTR_BUS_CYCLES,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = HW_OP_UNSUPPORTED,
};
static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
@ -576,16 +491,12 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
[C(L1D)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_L1_DCACHE_READ_ACCESS,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_L1_DCACHE_READ_REFILL,
[C(RESULT_ACCESS)] = ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_READ,
[C(RESULT_MISS)] = ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_READ,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_L1_DCACHE_WRITE_ACCESS,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_L1_DCACHE_WRITE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_WRITE,
[C(RESULT_MISS)] = ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_WRITE,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -601,11 +512,11 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
*/
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_IFETCH_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_IFETCH_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_L1_ICACHE_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -614,16 +525,12 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
},
[C(LL)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_L2_DCACHE_READ_ACCESS,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_L2_DCACHE_READ_REFILL,
[C(RESULT_ACCESS)] = ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_READ,
[C(RESULT_MISS)] = ARMV7_A15_PERFCTR_L2_CACHE_REFILL_READ,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)]
= ARMV7_PERFCTR_L2_DCACHE_WRITE_ACCESS,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_L2_DCACHE_WRITE_REFILL,
[C(RESULT_ACCESS)] = ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_WRITE,
[C(RESULT_MISS)] = ARMV7_A15_PERFCTR_L2_CACHE_REFILL_WRITE,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -633,13 +540,11 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(DTLB)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_L1_DTLB_READ_REFILL,
[C(RESULT_MISS)] = ARMV7_A15_PERFCTR_DTLB_REFILL_L1_READ,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_L1_DTLB_WRITE_REFILL,
[C(RESULT_MISS)] = ARMV7_A15_PERFCTR_DTLB_REFILL_L1_WRITE,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -649,11 +554,11 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(ITLB)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_MISS,
[C(RESULT_MISS)] = ARMV7_PERFCTR_ITLB_REFILL,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
@ -663,13 +568,11 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(BPU)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = ARMV7_PERFCTR_PC_BRANCH_PRED,
[C(RESULT_MISS)]
= ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
[C(RESULT_MISS)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,

16
arch/arm/kernel/perf_event_xscale.c
View file

@ -48,13 +48,15 @@ enum xscale_counters {
};
static const unsigned xscale_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = XSCALE_PERFCTR_CCNT,
[PERF_COUNT_HW_INSTRUCTIONS] = XSCALE_PERFCTR_INSTRUCTION,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = XSCALE_PERFCTR_BRANCH,
[PERF_COUNT_HW_BRANCH_MISSES] = XSCALE_PERFCTR_BRANCH_MISS,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CPU_CYCLES] = XSCALE_PERFCTR_CCNT,
[PERF_COUNT_HW_INSTRUCTIONS] = XSCALE_PERFCTR_INSTRUCTION,
[PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_CACHE_MISSES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = XSCALE_PERFCTR_BRANCH,
[PERF_COUNT_HW_BRANCH_MISSES] = XSCALE_PERFCTR_BRANCH_MISS,
[PERF_COUNT_HW_BUS_CYCLES] = HW_OP_UNSUPPORTED,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = XSCALE_PERFCTR_ICACHE_NO_DELIVER,
[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = HW_OP_UNSUPPORTED,
};
static const unsigned xscale_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]

79
arch/arm/kernel/process.c
View file

@ -57,7 +57,7 @@ static const char *isa_modes[] = {
"ARM" , "Thumb" , "Jazelle", "ThumbEE"
};
extern void setup_mm_for_reboot(char mode);
extern void setup_mm_for_reboot(void);
static volatile int hlt_counter;
@ -92,18 +92,24 @@ static int __init hlt_setup(char *__unused)
__setup("nohlt", nohlt_setup);
__setup("hlt", hlt_setup);
void arm_machine_restart(char mode, const char *cmd)
{
/* Disable interrupts first */
local_irq_disable();
local_fiq_disable();
extern void call_with_stack(void (*fn)(void *), void *arg, void *sp);
typedef void (*phys_reset_t)(unsigned long);
/*
* Tell the mm system that we are going to reboot -
* we may need it to insert some 1:1 mappings so that
* soft boot works.
*/
setup_mm_for_reboot(mode);
/*
* A temporary stack to use for CPU reset. This is static so that we
* don't clobber it with the identity mapping. When running with this
* stack, any references to the current task *will not work* so you
* should really do as little as possible before jumping to your reset
* code.
*/
static u64 soft_restart_stack[16];
static void __soft_restart(void *addr)
{
phys_reset_t phys_reset;
/* Take out a flat memory mapping. */
setup_mm_for_reboot();
/* Clean and invalidate caches */
flush_cache_all();
@ -114,18 +120,35 @@ void arm_machine_restart(char mode, const char *cmd)
/* Push out any further dirty data, and ensure cache is empty */
flush_cache_all();
/*
* Now call the architecture specific reboot code.
*/
arch_reset(mode, cmd);
/* Switch to the identity mapping. */
phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
phys_reset((unsigned long)addr);
/*
* Whoops - the architecture was unable to reboot.
* Tell the user!
*/
mdelay(1000);
printk("Reboot failed -- System halted\n");
while (1);
/* Should never get here. */
BUG();
}
void soft_restart(unsigned long addr)
{
u64 *stack = soft_restart_stack + ARRAY_SIZE(soft_restart_stack);
/* Disable interrupts first */
local_irq_disable();
local_fiq_disable();
/* Disable the L2 if we're the last man standing. */
if (num_online_cpus() == 1)
outer_disable();
/* Change to the new stack and continue with the reset. */
call_with_stack(__soft_restart, (void *)addr, (void *)stack);
/* Should never get here. */
BUG();
}
static void null_restart(char mode, const char *cmd)
{
}
/*
@ -134,7 +157,7 @@ void arm_machine_restart(char mode, const char *cmd)
void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);
void (*arm_pm_restart)(char str, const char *cmd) = arm_machine_restart;
void (*arm_pm_restart)(char str, const char *cmd) = null_restart;
EXPORT_SYMBOL_GPL(arm_pm_restart);
static void do_nothing(void *unused)
@ -253,7 +276,15 @@ void machine_power_off(void)
void machine_restart(char *cmd)
{
machine_shutdown();
arm_pm_restart(reboot_mode, cmd);
/* Give a grace period for failure to restart of 1s */
mdelay(1000);
/* Whoops - the platform was unable to reboot. Tell the user! */
printk("Reboot failed -- System halted\n");
while (1);
}
void __show_regs(struct pt_regs *regs)

118
arch/arm/kernel/sched_clock.c
View file

@ -14,61 +14,153 @@
#include <asm/sched_clock.h>
struct clock_data {
u64 epoch_ns;
u32 epoch_cyc;
u32 epoch_cyc_copy;
u32 mult;
u32 shift;
};
static void sched_clock_poll(unsigned long wrap_ticks);
static DEFINE_TIMER(sched_clock_timer, sched_clock_poll, 0, 0);
static void (*sched_clock_update_fn)(void);
static struct clock_data cd = {
.mult = NSEC_PER_SEC / HZ,
};
static u32 __read_mostly sched_clock_mask = 0xffffffff;
static u32 notrace jiffy_sched_clock_read(void)
{
return (u32)(jiffies - INITIAL_JIFFIES);
}
static u32 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
static inline u64 cyc_to_ns(u64 cyc, u32 mult, u32 shift)
{
return (cyc * mult) >> shift;
}
static unsigned long long cyc_to_sched_clock(u32 cyc, u32 mask)
{
u64 epoch_ns;
u32 epoch_cyc;
/*
* Load the epoch_cyc and epoch_ns atomically. We do this by
* ensuring that we always write epoch_cyc, epoch_ns and
* epoch_cyc_copy in strict order, and read them in strict order.
* If epoch_cyc and epoch_cyc_copy are not equal, then we're in
* the middle of an update, and we should repeat the load.
*/
do {
epoch_cyc = cd.epoch_cyc;
smp_rmb();
epoch_ns = cd.epoch_ns;
smp_rmb();
} while (epoch_cyc != cd.epoch_cyc_copy);
return epoch_ns + cyc_to_ns((cyc - epoch_cyc) & mask, cd.mult, cd.shift);
}
/*
* Atomically update the sched_clock epoch.
*/
static void notrace update_sched_clock(void)
{
unsigned long flags;
u32 cyc;
u64 ns;
cyc = read_sched_clock();
ns = cd.epoch_ns +
cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
cd.mult, cd.shift);
/*
* Write epoch_cyc and epoch_ns in a way that the update is
* detectable in cyc_to_fixed_sched_clock().
*/
raw_local_irq_save(flags);
cd.epoch_cyc = cyc;
smp_wmb();
cd.epoch_ns = ns;
smp_wmb();
cd.epoch_cyc_copy = cyc;
raw_local_irq_restore(flags);
}
static void sched_clock_poll(unsigned long wrap_ticks)
{
mod_timer(&sched_clock_timer, round_jiffies(jiffies + wrap_ticks));
sched_clock_update_fn();
update_sched_clock();
}
void __init init_sched_clock(struct clock_data *cd, void (*update)(void),
unsigned int clock_bits, unsigned long rate)
void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
{
unsigned long r, w;
u64 res, wrap;
char r_unit;
sched_clock_update_fn = update;
BUG_ON(bits > 32);
WARN_ON(!irqs_disabled());
WARN_ON(read_sched_clock != jiffy_sched_clock_read);
read_sched_clock = read;
sched_clock_mask = (1 << bits) - 1;
/* calculate the mult/shift to convert counter ticks to ns. */
clocks_calc_mult_shift(&cd->mult, &cd->shift, rate, NSEC_PER_SEC, 0);
clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0);
r = rate;
if (r >= 4000000) {
r /= 1000000;
r_unit = 'M';
} else {
} else if (r >= 1000) {
r /= 1000;
r_unit = 'k';
}
} else
r_unit = ' ';
/* calculate how many ns until we wrap */
wrap = cyc_to_ns((1ULL << clock_bits) - 1, cd->mult, cd->shift);
wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift);
do_div(wrap, NSEC_PER_MSEC);
w = wrap;
/* calculate the ns resolution of this counter */
res = cyc_to_ns(1ULL, cd->mult, cd->shift);
res = cyc_to_ns(1ULL, cd.mult, cd.shift);
pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lums\n",
clock_bits, r, r_unit, res, w);
bits, r, r_unit, res, w);
/*
* Start the timer to keep sched_clock() properly updated and
* sets the initial epoch.
*/
sched_clock_timer.data = msecs_to_jiffies(w - (w / 10));
update();
update_sched_clock();
/*
* Ensure that sched_clock() starts off at 0ns
*/
cd->epoch_ns = 0;
cd.epoch_ns = 0;
pr_debug("Registered %pF as sched_clock source\n", read);
}
unsigned long long notrace sched_clock(void)
{
u32 cyc = read_sched_clock();
return cyc_to_sched_clock(cyc, sched_clock_mask);
}
void __init sched_clock_postinit(void)
{
/*
* If no sched_clock function has been provided at that point,
* make it the final one one.
*/
if (read_sched_clock == jiffy_sched_clock_read)
setup_sched_clock(jiffy_sched_clock_read, 32, HZ);
sched_clock_poll(sched_clock_timer.data);
}

15
arch/arm/kernel/setup.c
View file

@ -31,6 +31,7 @@
#include <linux/memblock.h>
#include <linux/bug.h>
#include <linux/compiler.h>
#include <linux/sort.h>
#include <asm/unified.h>
#include <asm/cpu.h>
@ -890,6 +891,12 @@ static struct machine_desc * __init setup_machine_tags(unsigned int nr)
return mdesc;
}
static int __init meminfo_cmp(const void *_a, const void *_b)
{
const struct membank *a = _a, *b = _b;
long cmp = bank_pfn_start(a) - bank_pfn_start(b);
return cmp < 0 ? -1 : cmp > 0 ? 1 : 0;
}
void __init setup_arch(char **cmdline_p)
{
@ -908,8 +915,8 @@ void __init setup_arch(char **cmdline_p)
arm_dma_zone_size = mdesc->dma_zone_size;
}
#endif
if (mdesc->soft_reboot)
reboot_setup("s");
if (mdesc->restart_mode)
reboot_setup(&mdesc->restart_mode);
init_mm.start_code = (unsigned long) _text;
init_mm.end_code = (unsigned long) _etext;
@ -922,12 +929,16 @@ void __init setup_arch(char **cmdline_p)
parse_early_param();
sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
sanity_check_meminfo();
arm_memblock_init(&meminfo, mdesc);
paging_init(mdesc);
request_standard_resources(mdesc);
if (mdesc->restart)
arm_pm_restart = mdesc->restart;
unflatten_device_tree();
#ifdef CONFIG_SMP

4
arch/arm/kernel/sleep.S
View file

@ -54,14 +54,18 @@ ENDPROC(cpu_suspend_abort)
* r0 = control register value
*/
.align 5
.pushsection .idmap.text,"ax"
ENTRY(cpu_resume_mmu)
ldr r3, =cpu_resume_after_mmu
instr_sync
mcr p15, 0, r0, c1, c0, 0 @ turn on MMU, I-cache, etc
mrc p15, 0, r0, c0, c0, 0 @ read id reg
instr_sync
mov r0, r0
mov r0, r0
mov pc, r3 @ jump to virtual address
ENDPROC(cpu_resume_mmu)
.popsection
cpu_resume_after_mmu:
bl cpu_init @ restore the und/abt/irq banked regs
mov r0, #0 @ return zero on success

36
arch/arm/kernel/smp.c
View file

@ -31,6 +31,7 @@
#include <asm/cpu.h>
#include <asm/cputype.h>
#include <asm/exception.h>
#include <asm/idmap.h>
#include <asm/topology.h>
#include <asm/mmu_context.h>
#include <asm/pgtable.h>
@ -61,7 +62,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
{
struct cpuinfo_arm *ci = &per_cpu(cpu_data, cpu);
struct task_struct *idle = ci->idle;
pgd_t *pgd;
int ret;
/*
@ -83,30 +83,12 @@ int __cpuinit __cpu_up(unsigned int cpu)
init_idle(idle, cpu);
}
/*
* Allocate initial page tables to allow the new CPU to
* enable the MMU safely. This essentially means a set
* of our "standard" page tables, with the addition of
* a 1:1 mapping for the physical address of the kernel.
*/
pgd = pgd_alloc(&init_mm);
if (!pgd)
return -ENOMEM;
if (PHYS_OFFSET != PAGE_OFFSET) {
#ifndef CONFIG_HOTPLUG_CPU
identity_mapping_add(pgd, __pa(__init_begin), __pa(__init_end));
#endif
identity_mapping_add(pgd, __pa(_stext), __pa(_etext));
identity_mapping_add(pgd, __pa(_sdata), __pa(_edata));
}
/*
* We need to tell the secondary core where to find
* its stack and the page tables.
*/
secondary_data.stack = task_stack_page(idle) + THREAD_START_SP;
secondary_data.pgdir = virt_to_phys(pgd);
secondary_data.pgdir = virt_to_phys(idmap_pgd);
secondary_data.swapper_pg_dir = virt_to_phys(swapper_pg_dir);
__cpuc_flush_dcache_area(&secondary_data, sizeof(secondary_data));
outer_clean_range(__pa(&secondary_data), __pa(&secondary_data + 1));
@ -142,16 +124,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
secondary_data.stack = NULL;
secondary_data.pgdir = 0;
if (PHYS_OFFSET != PAGE_OFFSET) {
#ifndef CONFIG_HOTPLUG_CPU
identity_mapping_del(pgd, __pa(__init_begin), __pa(__init_end));
#endif
identity_mapping_del(pgd, __pa(_stext), __pa(_etext));
identity_mapping_del(pgd, __pa(_sdata), __pa(_edata));
}
pgd_free(&init_mm, pgd);
return ret;
}
@ -550,6 +522,10 @@ static void ipi_cpu_stop(unsigned int cpu)
local_fiq_disable();
local_irq_disable();
#ifdef CONFIG_HOTPLUG_CPU
platform_cpu_kill(cpu);
#endif
while (1)
cpu_relax();
}

95
arch/arm/kernel/smp_twd.c
View file

@ -10,8 +10,11 @@
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/smp.h>
#include <linux/jiffies.h>
#include <linux/clockchips.h>
@ -25,6 +28,7 @@
/* set up by the platform code */
void __iomem *twd_base;
static struct clk *twd_clk;
static unsigned long twd_timer_rate;
static struct clock_event_device __percpu **twd_evt;
@ -89,6 +93,52 @@ void twd_timer_stop(struct clock_event_device *clk)
disable_percpu_irq(clk->irq);
}
#ifdef CONFIG_CPU_FREQ
/*
* Updates clockevent frequency when the cpu frequency changes.
* Called on the cpu that is changing frequency with interrupts disabled.
*/
static void twd_update_frequency(void *data)
{
twd_timer_rate = clk_get_rate(twd_clk);
clockevents_update_freq(*__this_cpu_ptr(twd_evt), twd_timer_rate);
}
static int twd_cpufreq_transition(struct notifier_block *nb,
unsigned long state, void *data)
{
struct cpufreq_freqs *freqs = data;
/*
* The twd clock events must be reprogrammed to account for the new
* frequency. The timer is local to a cpu, so cross-call to the
* changing cpu.
*/
if (state == CPUFREQ_POSTCHANGE || state == CPUFREQ_RESUMECHANGE)
smp_call_function_single(freqs->cpu, twd_update_frequency,
NULL, 1);
return NOTIFY_OK;
}
static struct notifier_block twd_cpufreq_nb = {
.notifier_call = twd_cpufreq_transition,
};
static int twd_cpufreq_init(void)
{
if (!IS_ERR(twd_clk))
return cpufreq_register_notifier(&twd_cpufreq_nb,
CPUFREQ_TRANSITION_NOTIFIER);
return 0;
}
core_initcall(twd_cpufreq_init);
#endif
static void __cpuinit twd_calibrate_rate(void)
{
unsigned long count;
@ -140,6 +190,35 @@ static irqreturn_t twd_handler(int irq, void *dev_id)
return IRQ_NONE;
}
static struct clk *twd_get_clock(void)
{
struct clk *clk;
int err;
clk = clk_get_sys("smp_twd", NULL);
if (IS_ERR(clk)) {
pr_err("smp_twd: clock not found: %d\n", (int)PTR_ERR(clk));
return clk;
}
err = clk_prepare(clk);
if (err) {
pr_err("smp_twd: clock failed to prepare: %d\n", err);
clk_put(clk);
return ERR_PTR(err);
}
err = clk_enable(clk);
if (err) {
pr_err("smp_twd: clock failed to enable: %d\n", err);
clk_unprepare(clk);
clk_put(clk);
return ERR_PTR(err);
}
return clk;
}
/*
* Setup the local clock events for a CPU.
*/
@ -165,7 +244,13 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk)
}
}
twd_calibrate_rate();
if (!twd_clk)
twd_clk = twd_get_clock();
if (!IS_ERR_OR_NULL(twd_clk))
twd_timer_rate = clk_get_rate(twd_clk);
else
twd_calibrate_rate();
clk->name = "local_timer";
clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
@ -173,15 +258,11 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk)
clk->rating = 350;
clk->set_mode = twd_set_mode;
clk->set_next_event = twd_set_next_event;
clk->shift = 20;
clk->mult = div_sc(twd_timer_rate, NSEC_PER_SEC, clk->shift);
clk->max_delta_ns = clockevent_delta2ns(0xffffffff, clk);
clk->min_delta_ns = clockevent_delta2ns(0xf, clk);
this_cpu_clk = __this_cpu_ptr(twd_evt);
*this_cpu_clk = clk;
clockevents_register_device(clk);
clockevents_config_and_register(clk, twd_timer_rate,
0xf, 0xffffffff);
enable_percpu_irq(clk->irq, 0);
}

18
arch/arm/kernel/suspend.c
View file

@ -1,13 +1,12 @@
#include <linux/init.h>
#include <asm/idmap.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/memory.h>
#include <asm/suspend.h>
#include <asm/tlbflush.h>
static pgd_t *suspend_pgd;
extern int __cpu_suspend(unsigned long, int (*)(unsigned long));
extern void cpu_resume_mmu(void);
@ -21,7 +20,7 @@ void __cpu_suspend_save(u32 *ptr, u32 ptrsz, u32 sp, u32 *save_ptr)
*save_ptr = virt_to_phys(ptr);
/* This must correspond to the LDM in cpu_resume() assembly */
*ptr++ = virt_to_phys(suspend_pgd);
*ptr++ = virt_to_phys(idmap_pgd);
*ptr++ = sp;
*ptr++ = virt_to_phys(cpu_do_resume);
@ -42,7 +41,7 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
struct mm_struct *mm = current->active_mm;
int ret;
if (!suspend_pgd)
if (!idmap_pgd)
return -EINVAL;
/*
@ -59,14 +58,3 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
return ret;
}
static int __init cpu_suspend_init(void)
{
suspend_pgd = pgd_alloc(&init_mm);
if (suspend_pgd) {
unsigned long addr = virt_to_phys(cpu_resume_mmu);
identity_mapping_add(suspend_pgd, addr, addr + SECTION_SIZE);
}
return suspend_pgd ? 0 : -ENOMEM;
}
core_initcall(cpu_suspend_init);

16
arch/arm/kernel/swp_emulate.c
View file

@ -25,6 +25,7 @@
#include <linux/syscalls.h>
#include <linux/perf_event.h>
#include <asm/opcodes.h>
#include <asm/traps.h>
#include <asm/uaccess.h>
@ -185,6 +186,21 @@ static int swp_handler(struct pt_regs *regs, unsigned int instr)
perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, regs, regs->ARM_pc);
res = arm_check_condition(instr, regs->ARM_cpsr);
switch (res) {
case ARM_OPCODE_CONDTEST_PASS:
break;
case ARM_OPCODE_CONDTEST_FAIL:
/* Condition failed - return to next instruction */
regs->ARM_pc += 4;
return 0;
case ARM_OPCODE_CONDTEST_UNCOND:
/* If unconditional encoding - not a SWP, undef */
return -EFAULT;
default:
return -EINVAL;
}
if (current->pid != previous_pid) {
pr_debug("\"%s\" (%ld) uses deprecated SWP{B} instruction\n",
current->comm, (unsigned long)current->pid);

22
arch/arm/kernel/tcm.c
View file

@ -180,9 +180,9 @@ static int __init setup_tcm_bank(u8 type, u8 bank, u8 banks,
*/
void __init tcm_init(void)
{
u32 tcm_status = read_cpuid_tcmstatus();
u8 dtcm_banks = (tcm_status >> 16) & 0x03;
u8 itcm_banks = (tcm_status & 0x03);
u32 tcm_status;
u8 dtcm_banks;
u8 itcm_banks;
size_t dtcm_code_sz = &__edtcm_data - &__sdtcm_data;
size_t itcm_code_sz = &__eitcm_text - &__sitcm_text;
char *start;
@ -191,6 +191,22 @@ void __init tcm_init(void)
int ret;
int i;
/*
* Prior to ARMv5 there is no TCM, and trying to read the status
* register will hang the processor.
*/
if (cpu_architecture() < CPU_ARCH_ARMv5) {
if (dtcm_code_sz || itcm_code_sz)
pr_info("CPU TCM: %u bytes of DTCM and %u bytes of "
"ITCM code compiled in, but no TCM present "
"in pre-v5 CPU\n", dtcm_code_sz, itcm_code_sz);
return;
}
tcm_status = read_cpuid_tcmstatus();
dtcm_banks = (tcm_status >> 16) & 0x03;
itcm_banks = (tcm_status & 0x03);
/* Values greater than 2 for D/ITCM banks are "reserved" */
if (dtcm_banks > 2)
dtcm_banks = 0;

7
arch/arm/kernel/vmlinux.lds.S
View file

@ -13,6 +13,12 @@
*(.proc.info.init) \
VMLINUX_SYMBOL(__proc_info_end) = .;
#define IDMAP_TEXT \
ALIGN_FUNCTION(); \
VMLINUX_SYMBOL(__idmap_text_start) = .; \
*(.idmap.text) \
VMLINUX_SYMBOL(__idmap_text_end) = .;
#ifdef CONFIG_HOTPLUG_CPU
#define ARM_CPU_DISCARD(x)
#define ARM_CPU_KEEP(x) x
@ -92,6 +98,7 @@ SECTIONS
SCHED_TEXT
LOCK_TEXT
KPROBES_TEXT
IDMAP_TEXT
#ifdef CONFIG_MMU
*(.fixup)
#endif

3
arch/arm/lib/Makefile
View file

@ -13,7 +13,8 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
testchangebit.o testclearbit.o testsetbit.o \
ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
ucmpdi2.o lib1funcs.o div64.o \
io-readsb.o io-writesb.o io-readsl.o io-writesl.o
io-readsb.o io-writesb.o io-readsl.o io-writesl.o \
call_with_stack.o
mmu-y := clear_user.o copy_page.o getuser.o putuser.o

44
arch/arm/lib/call_with_stack.S Normal file
View file

@ -0,0 +1,44 @@
/*
* arch/arm/lib/call_with_stack.S
*
* Copyright (C) 2011 ARM Ltd.
* Written by Will Deacon <will.deacon@arm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
/*
* void call_with_stack(void (*fn)(void *), void *arg, void *sp)
*
* Change the stack to that pointed at by sp, then invoke fn(arg) with
* the new stack.
*/
ENTRY(call_with_stack)
str sp, [r2, #-4]!
str lr, [r2, #-4]!
mov sp, r2
mov r2, r0
mov r0, r1
adr lr, BSYM(1f)
mov pc, r2
1: ldr lr, [sp]
ldr sp, [sp, #4]
mov pc, lr
ENDPROC(call_with_stack)

24
arch/arm/mach-at91/Kconfig
View file

@ -3,6 +3,12 @@ if ARCH_AT91
config HAVE_AT91_DATAFLASH_CARD
bool
config HAVE_AT91_DBGU0
bool
config HAVE_AT91_DBGU1
bool
config HAVE_AT91_USART3
bool
@ -21,12 +27,14 @@ config ARCH_AT91RM9200
bool "AT91RM9200"
select CPU_ARM920T
select GENERIC_CLOCKEVENTS
select HAVE_AT91_DBGU0
select HAVE_AT91_USART3
config ARCH_AT91SAM9260
bool "AT91SAM9260 or AT91SAM9XE"
select CPU_ARM926T
select GENERIC_CLOCKEVENTS
select HAVE_AT91_DBGU0
select HAVE_AT91_USART3
select HAVE_AT91_USART4
select HAVE_AT91_USART5
@ -37,11 +45,13 @@ config ARCH_AT91SAM9261
select CPU_ARM926T
select GENERIC_CLOCKEVENTS
select HAVE_FB_ATMEL
select HAVE_AT91_DBGU0
config ARCH_AT91SAM9G10
bool "AT91SAM9G10"
select CPU_ARM926T
select GENERIC_CLOCKEVENTS
select HAVE_AT91_DBGU0
select HAVE_FB_ATMEL
config ARCH_AT91SAM9263
@ -50,6 +60,7 @@ config ARCH_AT91SAM9263
select GENERIC_CLOCKEVENTS
select HAVE_FB_ATMEL
select HAVE_NET_MACB
select HAVE_AT91_DBGU1
config ARCH_AT91SAM9RL
bool "AT91SAM9RL"
@ -57,11 +68,13 @@ config ARCH_AT91SAM9RL
select GENERIC_CLOCKEVENTS
select HAVE_AT91_USART3
select HAVE_FB_ATMEL
select HAVE_AT91_DBGU0
config ARCH_AT91SAM9G20
bool "AT91SAM9G20"
select CPU_ARM926T
select GENERIC_CLOCKEVENTS
select HAVE_AT91_DBGU0
select HAVE_AT91_USART3
select HAVE_AT91_USART4
select HAVE_AT91_USART5
@ -74,6 +87,7 @@ config ARCH_AT91SAM9G45
select HAVE_AT91_USART3
select HAVE_FB_ATMEL
select HAVE_NET_MACB
select HAVE_AT91_DBGU1
config ARCH_AT91CAP9
bool "AT91CAP9"
@ -81,6 +95,7 @@ config ARCH_AT91CAP9
select GENERIC_CLOCKEVENTS
select HAVE_FB_ATMEL
select HAVE_NET_MACB
select HAVE_AT91_DBGU1
config ARCH_AT91X40
bool "AT91x40"
@ -510,8 +525,13 @@ config AT91_TIMER_HZ
choice
prompt "Select a UART for early kernel messages"
config AT91_EARLY_DBGU
bool "DBGU"
config AT91_EARLY_DBGU0
bool "DBGU on rm9200, 9260/9g20, 9261/9g10 and 9rl"
depends on HAVE_AT91_DBGU0
config AT91_EARLY_DBGU1
bool "DBGU on 9263, 9g45 and cap9"
depends on HAVE_AT91_DBGU1
config AT91_EARLY_USART0
bool "USART0"

40
arch/arm/mach-at91/at91cap9.c
View file

@ -13,7 +13,6 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@ -23,11 +22,11 @@
#include <mach/at91cap9.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include <mach/at91_shdwc.h>
#include "soc.h"
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
/* --------------------------------------------------------------------
* Clocks
@ -223,6 +222,10 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
CLKDEV_CON_ID("pioA", &pioABCD_clk),
CLKDEV_CON_ID("pioB", &pioABCD_clk),
CLKDEV_CON_ID("pioC", &pioABCD_clk),
CLKDEV_CON_ID("pioD", &pioABCD_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
@ -295,37 +298,27 @@ void __init at91cap9_set_console_clock(int id)
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at91cap9_gpio[] = {
static struct at91_gpio_bank at91cap9_gpio[] __initdata = {
{
.id = AT91CAP9_ID_PIOABCD,
.offset = AT91_PIOA,
.clock = &pioABCD_clk,
.regbase = AT91CAP9_BASE_PIOA,
}, {
.id = AT91CAP9_ID_PIOABCD,
.offset = AT91_PIOB,
.clock = &pioABCD_clk,
.regbase = AT91CAP9_BASE_PIOB,
}, {
.id = AT91CAP9_ID_PIOABCD,
.offset = AT91_PIOC,
.clock = &pioABCD_clk,
.regbase = AT91CAP9_BASE_PIOC,
}, {
.id = AT91CAP9_ID_PIOABCD,
.offset = AT91_PIOD,
.clock = &pioABCD_clk,
.regbase = AT91CAP9_BASE_PIOD,
}
};
static void at91cap9_reset(void)
static void at91cap9_restart(char mode, const char *cmd)
{
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
static void at91cap9_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91CAP9 processor initialization
* -------------------------------------------------------------------- */
@ -335,10 +328,16 @@ static void __init at91cap9_map_io(void)
at91_init_sram(0, AT91CAP9_SRAM_BASE, AT91CAP9_SRAM_SIZE);
}
static void __init at91cap9_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91CAP9_BASE_SHDWC);
at91sam926x_ioremap_pit(AT91CAP9_BASE_PIT);
at91sam9_ioremap_smc(0, AT91CAP9_BASE_SMC);
}
static void __init at91cap9_initialize(void)
{
at91_arch_reset = at91cap9_reset;
pm_power_off = at91cap9_poweroff;
arm_pm_restart = at91cap9_restart;
at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
/* Register GPIO subsystem */
@ -396,6 +395,7 @@ static unsigned int at91cap9_default_irq_priority[NR_AIC_IRQS] __initdata = {
struct at91_init_soc __initdata at91cap9_soc = {
.map_io = at91cap9_map_io,
.default_irq_priority = at91cap9_default_irq_priority,
.ioremap_registers = at91cap9_ioremap_registers,
.register_clocks = at91cap9_register_clocks,
.init = at91cap9_initialize,
};

43
arch/arm/mach-at91/at91cap9_devices.c
View file

@ -76,7 +76,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
/* Enable VBus control for UHP ports */
for (i = 0; i < data->ports; i++) {
if (data->vbus_pin[i])
if (gpio_is_valid(data->vbus_pin[i]))
at91_set_gpio_output(data->vbus_pin[i], 0);
}
@ -179,7 +179,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data)
usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
if (data && data->vbus_pin > 0) {
if (data && gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
usba_udc_data.pdata.vbus_pin = data->vbus_pin;
@ -232,7 +232,7 @@ void __init at91_add_device_eth(struct macb_platform_data *data)
if (!data)
return;
if (data->phy_irq_pin) {
if (gpio_is_valid(data->phy_irq_pin)) {
at91_set_gpio_input(data->phy_irq_pin, 0);
at91_set_deglitch(data->phy_irq_pin, 1);
}
@ -332,13 +332,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
return;
/* input/irq */
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->wp_pin)
if (gpio_is_valid(data->wp_pin))
at91_set_gpio_input(data->wp_pin, 1);
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
at91_set_gpio_output(data->vcc_pin, 0);
if (mmc_id == 0) { /* MCI0 */
@ -398,8 +398,8 @@ static struct resource nand_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_BASE_SYS + AT91_ECC,
.end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
.start = AT91CAP9_BASE_ECC,
.end = AT91CAP9_BASE_ECC + SZ_512 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -425,15 +425,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
/* enable pin */
if (data->enable_pin)
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
nand_data = *data;
@ -670,8 +670,8 @@ static void __init at91_add_device_tc(void) { }
static struct resource rtt_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT,
.end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
.start = AT91CAP9_BASE_RTT,
.end = AT91CAP9_BASE_RTT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -694,10 +694,19 @@ static void __init at91_add_device_rtt(void)
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct resource wdt_resources[] = {
{
.start = AT91CAP9_BASE_WDT,
.end = AT91CAP9_BASE_WDT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91cap9_wdt_device = {
.name = "at91_wdt",
.id = -1,
.num_resources = 0,
.resource = wdt_resources,
.num_resources = ARRAY_SIZE(wdt_resources),
};
static void __init at91_add_device_watchdog(void)
@ -807,7 +816,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
at91_set_A_periph(AT91_PIN_PA9, 0); /* AC97RX */
/* reset */
if (data->reset_pin)
if (gpio_is_valid(data->reset_pin))
at91_set_gpio_output(data->reset_pin, 0);
ac97_data = *data;
@ -1021,8 +1030,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.start = AT91CAP9_BASE_DBGU,
.end = AT91CAP9_BASE_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {

28
arch/arm/mach-at91/at91rm9200.c
View file

@ -23,6 +23,7 @@
#include "soc.h"
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
static struct map_desc at91rm9200_io_desc[] __initdata = {
{
@ -195,6 +196,10 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioC_clk),
CLKDEV_CON_ID("pioD", &pioD_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
@ -268,27 +273,23 @@ void __init at91rm9200_set_console_clock(int id)
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at91rm9200_gpio[] = {
static struct at91_gpio_bank at91rm9200_gpio[] __initdata = {
{
.id = AT91RM9200_ID_PIOA,
.offset = AT91_PIOA,
.clock = &pioA_clk,
.regbase = AT91RM9200_BASE_PIOA,
}, {
.id = AT91RM9200_ID_PIOB,
.offset = AT91_PIOB,
.clock = &pioB_clk,
.regbase = AT91RM9200_BASE_PIOB,
}, {
.id = AT91RM9200_ID_PIOC,
.offset = AT91_PIOC,
.clock = &pioC_clk,
.regbase = AT91RM9200_BASE_PIOC,
}, {
.id = AT91RM9200_ID_PIOD,
.offset = AT91_PIOD,
.clock = &pioD_clk,
.regbase = AT91RM9200_BASE_PIOD,
}
};
static void at91rm9200_reset(void)
static void at91rm9200_restart(char mode, const char *cmd)
{
/*
* Perform a hardware reset with the use of the Watchdog timer.
@ -307,9 +308,13 @@ static void __init at91rm9200_map_io(void)
iotable_init(at91rm9200_io_desc, ARRAY_SIZE(at91rm9200_io_desc));
}
static void __init at91rm9200_ioremap_registers(void)
{
}
static void __init at91rm9200_initialize(void)
{
at91_arch_reset = at91rm9200_reset;
arm_pm_restart = at91rm9200_restart;
at91_extern_irq = (1 << AT91RM9200_ID_IRQ0) | (1 << AT91RM9200_ID_IRQ1)
| (1 << AT91RM9200_ID_IRQ2) | (1 << AT91RM9200_ID_IRQ3)
| (1 << AT91RM9200_ID_IRQ4) | (1 << AT91RM9200_ID_IRQ5)
@ -366,6 +371,7 @@ static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = {
struct at91_init_soc __initdata at91rm9200_soc = {
.map_io = at91rm9200_map_io,
.default_irq_priority = at91rm9200_default_irq_priority,
.ioremap_registers = at91rm9200_ioremap_registers,
.register_clocks = at91rm9200_register_clocks,
.init = at91rm9200_initialize,
};

42
arch/arm/mach-at91/at91rm9200_devices.c
View file

@ -114,11 +114,11 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
if (!data)
return;
if (data->vbus_pin) {
if (gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
}
if (data->pullup_pin)
if (gpio_is_valid(data->pullup_pin))
at91_set_gpio_output(data->pullup_pin, 0);
udc_data = *data;
@ -167,7 +167,7 @@ void __init at91_add_device_eth(struct macb_platform_data *data)
if (!data)
return;
if (data->phy_irq_pin) {
if (gpio_is_valid(data->phy_irq_pin)) {
at91_set_gpio_input(data->phy_irq_pin, 0);
at91_set_deglitch(data->phy_irq_pin, 1);
}
@ -260,7 +260,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
);
/* input/irq */
if (data->irq_pin) {
if (gpio_is_valid(data->irq_pin)) {
at91_set_gpio_input(data->irq_pin, 1);
at91_set_deglitch(data->irq_pin, 1);
}
@ -268,7 +268,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
at91_set_deglitch(data->det_pin, 1);
/* outputs, initially off */
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
at91_set_gpio_output(data->vcc_pin, 0);
at91_set_gpio_output(data->rst_pin, 0);
@ -328,13 +328,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
return;
/* input/irq */
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->wp_pin)
if (gpio_is_valid(data->wp_pin))
at91_set_gpio_input(data->wp_pin, 1);
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
at91_set_gpio_output(data->vcc_pin, 0);
/* CLK */
@ -419,15 +419,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
);
/* enable pin */
if (data->enable_pin)
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
at91_set_A_periph(AT91_PIN_PC1, 0); /* SMOE */
@ -665,10 +665,24 @@ static void __init at91_add_device_tc(void) { }
* -------------------------------------------------------------------- */
#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
static struct resource rtc_resources[] = {
[0] = {
.start = AT91RM9200_BASE_RTC,
.end = AT91RM9200_BASE_RTC + SZ_256 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_ID_SYS,
.end = AT91_ID_SYS,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91rm9200_rtc_device = {
.name = "at91_rtc",
.id = -1,
.num_resources = 0,
.resource = rtc_resources,
.num_resources = ARRAY_SIZE(rtc_resources),
};
static void __init at91_add_device_rtc(void)
@ -877,8 +891,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.start = AT91RM9200_BASE_DBGU,
.end = AT91RM9200_BASE_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {

8
arch/arm/mach-at91/at91rm9200_time.c
View file

@ -32,6 +32,8 @@ static unsigned long last_crtr;
static u32 irqmask;
static struct clock_event_device clkevt;
#define RM9200_TIMER_LATCH ((AT91_SLOW_CLOCK + HZ/2) / HZ)
/*
* The ST_CRTR is updated asynchronously to the master clock ... but
* the updates as seen by the CPU don't seem to be strictly monotonic.
@ -74,8 +76,8 @@ static irqreturn_t at91rm9200_timer_interrupt(int irq, void *dev_id)
if (sr & AT91_ST_PITS) {
u32 crtr = read_CRTR();
while (((crtr - last_crtr) & AT91_ST_CRTV) >= LATCH) {
last_crtr += LATCH;
while (((crtr - last_crtr) & AT91_ST_CRTV) >= RM9200_TIMER_LATCH) {
last_crtr += RM9200_TIMER_LATCH;
clkevt.event_handler(&clkevt);
}
return IRQ_HANDLED;
@ -116,7 +118,7 @@ clkevt32k_mode(enum clock_event_mode mode, struct clock_event_device *dev)
case CLOCK_EVT_MODE_PERIODIC:
/* PIT for periodic irqs; fixed rate of 1/HZ */
irqmask = AT91_ST_PITS;
at91_sys_write(AT91_ST_PIMR, LATCH);
at91_sys_write(AT91_ST_PIMR, RM9200_TIMER_LATCH);
break;
case CLOCK_EVT_MODE_ONESHOT:
/* ALM for oneshot irqs, set by next_event()

34
arch/arm/mach-at91/at91sam9260.c
View file

@ -11,7 +11,6 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@ -21,11 +20,11 @@
#include <mach/at91sam9260.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include <mach/at91_shdwc.h>
#include "soc.h"
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
/* --------------------------------------------------------------------
* Clocks
@ -211,6 +210,9 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("usart", "fffd8000.serial", &usart5_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioC_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
@ -272,28 +274,19 @@ void __init at91sam9260_set_console_clock(int id)
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at91sam9260_gpio[] = {
static struct at91_gpio_bank at91sam9260_gpio[] __initdata = {
{
.id = AT91SAM9260_ID_PIOA,
.offset = AT91_PIOA,
.clock = &pioA_clk,
.regbase = AT91SAM9260_BASE_PIOA,
}, {
.id = AT91SAM9260_ID_PIOB,
.offset = AT91_PIOB,
.clock = &pioB_clk,
.regbase = AT91SAM9260_BASE_PIOB,
}, {
.id = AT91SAM9260_ID_PIOC,
.offset = AT91_PIOC,
.clock = &pioC_clk,
.regbase = AT91SAM9260_BASE_PIOC,
}
};
static void at91sam9260_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9260 processor initialization
* -------------------------------------------------------------------- */
@ -327,10 +320,16 @@ static void __init at91sam9260_map_io(void)
}
}
static void __init at91sam9260_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9260_BASE_SHDWC);
at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC);
}
static void __init at91sam9260_initialize(void)
{
at91_arch_reset = at91sam9_alt_reset;
pm_power_off = at91sam9260_poweroff;
arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
| (1 << AT91SAM9260_ID_IRQ2);
@ -383,6 +382,7 @@ static unsigned int at91sam9260_default_irq_priority[NR_AIC_IRQS] __initdata = {
struct at91_init_soc __initdata at91sam9260_soc = {
.map_io = at91sam9260_map_io,
.default_irq_priority = at91sam9260_default_irq_priority,
.ioremap_registers = at91sam9260_ioremap_registers,
.register_clocks = at91sam9260_register_clocks,
.init = at91sam9260_initialize,
};

49
arch/arm/mach-at91/at91sam9260_devices.c
View file

@ -115,7 +115,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
if (!data)
return;
if (data->vbus_pin) {
if (gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
}
@ -168,7 +168,7 @@ void __init at91_add_device_eth(struct macb_platform_data *data)
if (!data)
return;
if (data->phy_irq_pin) {
if (gpio_is_valid(data->phy_irq_pin)) {
at91_set_gpio_input(data->phy_irq_pin, 0);
at91_set_deglitch(data->phy_irq_pin, 1);
}
@ -243,13 +243,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
return;
/* input/irq */
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->wp_pin)
if (gpio_is_valid(data->wp_pin))
at91_set_gpio_input(data->wp_pin, 1);
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
at91_set_gpio_output(data->vcc_pin, 0);
/* CLK */
@ -330,11 +330,11 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
if (data->slot[i].bus_width) {
/* input/irq */
if (data->slot[i].detect_pin) {
if (gpio_is_valid(data->slot[i].detect_pin)) {
at91_set_gpio_input(data->slot[i].detect_pin, 1);
at91_set_deglitch(data->slot[i].detect_pin, 1);
}
if (data->slot[i].wp_pin)
if (gpio_is_valid(data->slot[i].wp_pin))
at91_set_gpio_input(data->slot[i].wp_pin, 1);
switch (i) {
@ -399,8 +399,8 @@ static struct resource nand_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_BASE_SYS + AT91_ECC,
.end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
.start = AT91SAM9260_BASE_ECC,
.end = AT91SAM9260_BASE_ECC + SZ_512 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -426,15 +426,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
/* enable pin */
if (data->enable_pin)
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
nand_data = *data;
@ -714,8 +714,8 @@ static void __init at91_add_device_tc(void) { }
static struct resource rtt_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT,
.end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
.start = AT91SAM9260_BASE_RTT,
.end = AT91SAM9260_BASE_RTT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -738,10 +738,19 @@ static void __init at91_add_device_rtt(void)
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct resource wdt_resources[] = {
{
.start = AT91SAM9260_BASE_WDT,
.end = AT91SAM9260_BASE_WDT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9260_wdt_device = {
.name = "at91_wdt",
.id = -1,
.num_resources = 0,
.resource = wdt_resources,
.num_resources = ARRAY_SIZE(wdt_resources),
};
static void __init at91_add_device_watchdog(void)
@ -837,8 +846,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.start = AT91SAM9260_BASE_DBGU,
.end = AT91SAM9260_BASE_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@ -1281,17 +1290,17 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
at91_sys_write(AT91_MATRIX_EBICSA, csa);
if (data->rst_pin) {
if (gpio_is_valid(data->rst_pin)) {
at91_set_multi_drive(data->rst_pin, 0);
at91_set_gpio_output(data->rst_pin, 1);
}
if (data->irq_pin) {
if (gpio_is_valid(data->irq_pin)) {
at91_set_gpio_input(data->irq_pin, 0);
at91_set_deglitch(data->irq_pin, 1);
}
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 0);
at91_set_deglitch(data->det_pin, 1);
}

34
arch/arm/mach-at91/at91sam9261.c
View file

@ -11,7 +11,6 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@ -20,11 +19,11 @@
#include <mach/at91sam9261.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include <mach/at91_shdwc.h>
#include "soc.h"
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
/* --------------------------------------------------------------------
* Clocks
@ -176,6 +175,9 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &hck0),
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioC_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
@ -251,28 +253,19 @@ void __init at91sam9261_set_console_clock(int id)
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at91sam9261_gpio[] = {
static struct at91_gpio_bank at91sam9261_gpio[] __initdata = {
{
.id = AT91SAM9261_ID_PIOA,
.offset = AT91_PIOA,
.clock = &pioA_clk,
.regbase = AT91SAM9261_BASE_PIOA,
}, {
.id = AT91SAM9261_ID_PIOB,
.offset = AT91_PIOB,
.clock = &pioB_clk,
.regbase = AT91SAM9261_BASE_PIOB,
}, {
.id = AT91SAM9261_ID_PIOC,
.offset = AT91_PIOC,
.clock = &pioC_clk,
.regbase = AT91SAM9261_BASE_PIOC,
}
};
static void at91sam9261_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9261 processor initialization
* -------------------------------------------------------------------- */
@ -285,10 +278,16 @@ static void __init at91sam9261_map_io(void)
at91_init_sram(0, AT91SAM9261_SRAM_BASE, AT91SAM9261_SRAM_SIZE);
}
static void __init at91sam9261_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9261_BASE_SHDWC);
at91sam926x_ioremap_pit(AT91SAM9261_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9261_BASE_SMC);
}
static void __init at91sam9261_initialize(void)
{
at91_arch_reset = at91sam9_alt_reset;
pm_power_off = at91sam9261_poweroff;
arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9261_ID_IRQ0) | (1 << AT91SAM9261_ID_IRQ1)
| (1 << AT91SAM9261_ID_IRQ2);
@ -341,6 +340,7 @@ static unsigned int at91sam9261_default_irq_priority[NR_AIC_IRQS] __initdata = {
struct at91_init_soc __initdata at91sam9261_soc = {
.map_io = at91sam9261_map_io,
.default_irq_priority = at91sam9261_default_irq_priority,
.ioremap_registers = at91sam9261_ioremap_registers,
.register_clocks = at91sam9261_register_clocks,
.init = at91sam9261_initialize,
};

33
arch/arm/mach-at91/at91sam9261_devices.c
View file

@ -118,7 +118,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
if (!data)
return;
if (data->vbus_pin) {
if (gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
}
@ -171,13 +171,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
return;
/* input/irq */
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->wp_pin)
if (gpio_is_valid(data->wp_pin))
at91_set_gpio_input(data->wp_pin, 1);
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
at91_set_gpio_output(data->vcc_pin, 0);
/* CLK */
@ -240,15 +240,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
/* enable pin */
if (data->enable_pin)
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
at91_set_A_periph(AT91_PIN_PC0, 0); /* NANDOE */
@ -600,8 +600,8 @@ static void __init at91_add_device_tc(void) { }
static struct resource rtt_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT,
.end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
.start = AT91SAM9261_BASE_RTT,
.end = AT91SAM9261_BASE_RTT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -624,10 +624,19 @@ static void __init at91_add_device_rtt(void)
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct resource wdt_resources[] = {
{
.start = AT91SAM9261_BASE_WDT,
.end = AT91SAM9261_BASE_WDT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9261_wdt_device = {
.name = "at91_wdt",
.id = -1,
.num_resources = 0,
.resource = wdt_resources,
.num_resources = ARRAY_SIZE(wdt_resources),
};
static void __init at91_add_device_watchdog(void)
@ -816,8 +825,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.start = AT91SAM9261_BASE_DBGU,
.end = AT91SAM9261_BASE_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {

43
arch/arm/mach-at91/at91sam9263.c
View file

@ -11,7 +11,6 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@ -19,11 +18,11 @@
#include <mach/at91sam9263.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include <mach/at91_shdwc.h>
#include "soc.h"
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
/* --------------------------------------------------------------------
* Clocks
@ -193,6 +192,11 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioCDE_clk),
CLKDEV_CON_ID("pioD", &pioCDE_clk),
CLKDEV_CON_ID("pioE", &pioCDE_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
@ -265,36 +269,25 @@ void __init at91sam9263_set_console_clock(int id)
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at91sam9263_gpio[] = {
static struct at91_gpio_bank at91sam9263_gpio[] __initdata = {
{
.id = AT91SAM9263_ID_PIOA,
.offset = AT91_PIOA,
.clock = &pioA_clk,
.regbase = AT91SAM9263_BASE_PIOA,
}, {
.id = AT91SAM9263_ID_PIOB,
.offset = AT91_PIOB,
.clock = &pioB_clk,
.regbase = AT91SAM9263_BASE_PIOB,
}, {
.id = AT91SAM9263_ID_PIOCDE,
.offset = AT91_PIOC,
.clock = &pioCDE_clk,
.regbase = AT91SAM9263_BASE_PIOC,
}, {
.id = AT91SAM9263_ID_PIOCDE,
.offset = AT91_PIOD,
.clock = &pioCDE_clk,
.regbase = AT91SAM9263_BASE_PIOD,
}, {
.id = AT91SAM9263_ID_PIOCDE,
.offset = AT91_PIOE,
.clock = &pioCDE_clk,
.regbase = AT91SAM9263_BASE_PIOE,
}
};
static void at91sam9263_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9263 processor initialization
* -------------------------------------------------------------------- */
@ -305,10 +298,17 @@ static void __init at91sam9263_map_io(void)
at91_init_sram(1, AT91SAM9263_SRAM1_BASE, AT91SAM9263_SRAM1_SIZE);
}
static void __init at91sam9263_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC);
at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);
}
static void __init at91sam9263_initialize(void)
{
at91_arch_reset = at91sam9_alt_reset;
pm_power_off = at91sam9263_poweroff;
arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
/* Register GPIO subsystem */
@ -360,6 +360,7 @@ static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
struct at91_init_soc __initdata at91sam9263_soc = {
.map_io = at91sam9263_map_io,
.default_irq_priority = at91sam9263_default_irq_priority,
.ioremap_registers = at91sam9263_ioremap_registers,
.register_clocks = at91sam9263_register_clocks,
.init = at91sam9263_initialize,
};

53
arch/arm/mach-at91/at91sam9263_devices.c
View file

@ -70,7 +70,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
/* Enable VBus control for UHP ports */
for (i = 0; i < data->ports; i++) {
if (data->vbus_pin[i])
if (gpio_is_valid(data->vbus_pin[i]))
at91_set_gpio_output(data->vbus_pin[i], 0);
}
@ -123,7 +123,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
if (!data)
return;
if (data->vbus_pin) {
if (gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
}
@ -176,7 +176,7 @@ void __init at91_add_device_eth(struct macb_platform_data *data)
if (!data)
return;
if (data->phy_irq_pin) {
if (gpio_is_valid(data->phy_irq_pin)) {
at91_set_gpio_input(data->phy_irq_pin, 0);
at91_set_deglitch(data->phy_irq_pin, 1);
}
@ -276,13 +276,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
return;
/* input/irq */
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->wp_pin)
if (gpio_is_valid(data->wp_pin))
at91_set_gpio_input(data->wp_pin, 1);
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
at91_set_gpio_output(data->vcc_pin, 0);
if (mmc_id == 0) { /* MCI0 */
@ -430,17 +430,17 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
}
at91_sys_write(AT91_MATRIX_EBI0CSA, ebi0_csa);
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->irq_pin) {
if (gpio_is_valid(data->irq_pin)) {
at91_set_gpio_input(data->irq_pin, 1);
at91_set_deglitch(data->irq_pin, 1);
}
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
/* initially off */
at91_set_gpio_output(data->vcc_pin, 0);
@ -473,8 +473,8 @@ static struct resource nand_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_BASE_SYS + AT91_ECC0,
.end = AT91_BASE_SYS + AT91_ECC0 + SZ_512 - 1,
.start = AT91SAM9263_BASE_ECC0,
.end = AT91SAM9263_BASE_ECC0 + SZ_512 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -500,15 +500,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
/* enable pin */
if (data->enable_pin)
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
nand_data = *data;
@ -749,7 +749,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
at91_set_A_periph(AT91_PIN_PB3, 0); /* AC97RX */
/* reset */
if (data->reset_pin)
if (gpio_is_valid(data->reset_pin))
at91_set_gpio_output(data->reset_pin, 0);
ac97_data = *data;
@ -956,8 +956,8 @@ static void __init at91_add_device_tc(void) { }
static struct resource rtt0_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT0,
.end = AT91_BASE_SYS + AT91_RTT0 + SZ_16 - 1,
.start = AT91SAM9263_BASE_RTT0,
.end = AT91SAM9263_BASE_RTT0 + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -971,8 +971,8 @@ static struct platform_device at91sam9263_rtt0_device = {
static struct resource rtt1_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT1,
.end = AT91_BASE_SYS + AT91_RTT1 + SZ_16 - 1,
.start = AT91SAM9263_BASE_RTT1,
.end = AT91SAM9263_BASE_RTT1 + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -996,10 +996,19 @@ static void __init at91_add_device_rtt(void)
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct resource wdt_resources[] = {
{
.start = AT91SAM9263_BASE_WDT,
.end = AT91SAM9263_BASE_WDT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9263_wdt_device = {
.name = "at91_wdt",
.id = -1,
.num_resources = 0,
.resource = wdt_resources,
.num_resources = ARRAY_SIZE(wdt_resources),
};
static void __init at91_add_device_watchdog(void)
@ -1196,8 +1205,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.start = AT91SAM9263_BASE_DBGU,
.end = AT91SAM9263_BASE_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {

38
arch/arm/mach-at91/at91sam926x_time.c
View file

@ -25,7 +25,17 @@
static u32 pit_cycle; /* write-once */
static u32 pit_cnt; /* access only w/system irq blocked */
static void __iomem *pit_base_addr __read_mostly;
static inline unsigned int pit_read(unsigned int reg_offset)
{
return __raw_readl(pit_base_addr + reg_offset);
}
static inline void pit_write(unsigned int reg_offset, unsigned long value)
{
__raw_writel(value, pit_base_addr + reg_offset);
}
/*
* Clocksource: just a monotonic counter of MCK/16 cycles.
@ -39,7 +49,7 @@ static cycle_t read_pit_clk(struct clocksource *cs)
raw_local_irq_save(flags);
elapsed = pit_cnt;
t = at91_sys_read(AT91_PIT_PIIR);
t = pit_read(AT91_PIT_PIIR);
raw_local_irq_restore(flags);
elapsed += PIT_PICNT(t) * pit_cycle;
@ -64,8 +74,8 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
/* update clocksource counter */
pit_cnt += pit_cycle * PIT_PICNT(at91_sys_read(AT91_PIT_PIVR));
at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN
pit_cnt += pit_cycle * PIT_PICNT(pit_read(AT91_PIT_PIVR));
pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN
| AT91_PIT_PITIEN);
break;
case CLOCK_EVT_MODE_ONESHOT:
@ -74,7 +84,7 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
case CLOCK_EVT_MODE_SHUTDOWN:
case CLOCK_EVT_MODE_UNUSED:
/* disable irq, leaving the clocksource active */
at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
break;
case CLOCK_EVT_MODE_RESUME:
break;
@ -103,11 +113,11 @@ static irqreturn_t at91sam926x_pit_interrupt(int irq, void *dev_id)
/* The PIT interrupt may be disabled, and is shared */
if ((pit_clkevt.mode == CLOCK_EVT_MODE_PERIODIC)
&& (at91_sys_read(AT91_PIT_SR) & AT91_PIT_PITS)) {
&& (pit_read(AT91_PIT_SR) & AT91_PIT_PITS)) {
unsigned nr_ticks;
/* Get number of ticks performed before irq, and ack it */
nr_ticks = PIT_PICNT(at91_sys_read(AT91_PIT_PIVR));
nr_ticks = PIT_PICNT(pit_read(AT91_PIT_PIVR));
do {
pit_cnt += pit_cycle;
pit_clkevt.event_handler(&pit_clkevt);
@ -129,14 +139,14 @@ static struct irqaction at91sam926x_pit_irq = {
static void at91sam926x_pit_reset(void)
{
/* Disable timer and irqs */
at91_sys_write(AT91_PIT_MR, 0);
pit_write(AT91_PIT_MR, 0);
/* Clear any pending interrupts, wait for PIT to stop counting */
while (PIT_CPIV(at91_sys_read(AT91_PIT_PIVR)) != 0)
while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0)
cpu_relax();
/* Start PIT but don't enable IRQ */
at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
}
/*
@ -178,7 +188,15 @@ static void __init at91sam926x_pit_init(void)
static void at91sam926x_pit_suspend(void)
{
/* Disable timer */
at91_sys_write(AT91_PIT_MR, 0);
pit_write(AT91_PIT_MR, 0);
}
void __init at91sam926x_ioremap_pit(u32 addr)
{
pit_base_addr = ioremap(addr, 16);
if (!pit_base_addr)
panic("Impossible to ioremap PIT\n");
}
struct sys_timer at91sam926x_timer = {

9
arch/arm/mach-at91/at91sam9_alt_reset.S
View file

@ -14,20 +14,15 @@
*/
#include <linux/linkage.h>
#include <asm/system.h>
#include <mach/hardware.h>
#include <mach/at91sam9_sdramc.h>
#include <mach/at91_rstc.h>
.arm
.globl at91sam9_alt_reset
.globl at91sam9_alt_restart
at91sam9_alt_reset: mrc p15, 0, r0, c1, c0, 0
orr r0, r0, #CR_I
mcr p15, 0, r0, c1, c0, 0 @ enable I-cache
ldr r0, .at91_va_base_sdramc @ preload constants
at91sam9_alt_restart: ldr r0, .at91_va_base_sdramc @ preload constants
ldr r1, .at91_va_base_rstc_cr
mov r2, #1

44
arch/arm/mach-at91/at91sam9g45.c
View file

@ -11,7 +11,6 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/dma-mapping.h>
#include <asm/irq.h>
@ -20,12 +19,12 @@
#include <mach/at91sam9g45.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include <mach/at91_shdwc.h>
#include <mach/cpu.h>
#include "soc.h"
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
/* --------------------------------------------------------------------
* Clocks
@ -233,6 +232,11 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("usart", "fff98000.serial", &usart3_clk),
/* fake hclk clock */
CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk),
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioC_clk),
CLKDEV_CON_ID("pioD", &pioDE_clk),
CLKDEV_CON_ID("pioE", &pioDE_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
@ -295,41 +299,30 @@ void __init at91sam9g45_set_console_clock(int id)
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at91sam9g45_gpio[] = {
static struct at91_gpio_bank at91sam9g45_gpio[] __initdata = {
{
.id = AT91SAM9G45_ID_PIOA,
.offset = AT91_PIOA,
.clock = &pioA_clk,
.regbase = AT91SAM9G45_BASE_PIOA,
}, {
.id = AT91SAM9G45_ID_PIOB,
.offset = AT91_PIOB,
.clock = &pioB_clk,
.regbase = AT91SAM9G45_BASE_PIOB,
}, {
.id = AT91SAM9G45_ID_PIOC,
.offset = AT91_PIOC,
.clock = &pioC_clk,
.regbase = AT91SAM9G45_BASE_PIOC,
}, {
.id = AT91SAM9G45_ID_PIODE,
.offset = AT91_PIOD,
.clock = &pioDE_clk,
.regbase = AT91SAM9G45_BASE_PIOD,
}, {
.id = AT91SAM9G45_ID_PIODE,
.offset = AT91_PIOE,
.clock = &pioDE_clk,
.regbase = AT91SAM9G45_BASE_PIOE,
}
};
static void at91sam9g45_reset(void)
static void at91sam9g45_restart(char mode, const char *cmd)
{
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
static void at91sam9g45_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9G45 processor initialization
* -------------------------------------------------------------------- */
@ -340,10 +333,16 @@ static void __init at91sam9g45_map_io(void)
init_consistent_dma_size(SZ_4M);
}
static void __init at91sam9g45_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9G45_BASE_SHDWC);
at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9G45_BASE_SMC);
}
static void __init at91sam9g45_initialize(void)
{
at91_arch_reset = at91sam9g45_reset;
pm_power_off = at91sam9g45_poweroff;
arm_pm_restart = at91sam9g45_restart;
at91_extern_irq = (1 << AT91SAM9G45_ID_IRQ0);
/* Register GPIO subsystem */
@ -395,6 +394,7 @@ static unsigned int at91sam9g45_default_irq_priority[NR_AIC_IRQS] __initdata = {
struct at91_init_soc __initdata at91sam9g45_soc = {
.map_io = at91sam9g45_map_io,
.default_irq_priority = at91sam9g45_default_irq_priority,
.ioremap_registers = at91sam9g45_ioremap_registers,
.register_clocks = at91sam9g45_register_clocks,
.init = at91sam9g45_initialize,
};

63
arch/arm/mach-at91/at91sam9g45_devices.c
View file

@ -44,8 +44,8 @@ static struct at_dma_platform_data atdma_pdata = {
static struct resource hdmac_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DMA,
.end = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
.start = AT91SAM9G45_BASE_DMA,
.end = AT91SAM9G45_BASE_DMA + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
@ -120,7 +120,7 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data)
/* Enable VBus control for UHP ports */
for (i = 0; i < data->ports; i++) {
if (data->vbus_pin[i])
if (gpio_is_valid(data->vbus_pin[i]))
at91_set_gpio_output(data->vbus_pin[i], 0);
}
@ -181,7 +181,7 @@ void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data)
/* Enable VBus control for UHP ports */
for (i = 0; i < data->ports; i++) {
if (data->vbus_pin[i])
if (gpio_is_valid(data->vbus_pin[i]))
at91_set_gpio_output(data->vbus_pin[i], 0);
}
@ -263,7 +263,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data)
usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
if (data && data->vbus_pin > 0) {
if (data && gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
usba_udc_data.pdata.vbus_pin = data->vbus_pin;
@ -316,7 +316,7 @@ void __init at91_add_device_eth(struct macb_platform_data *data)
if (!data)
return;
if (data->phy_irq_pin) {
if (gpio_is_valid(data->phy_irq_pin)) {
at91_set_gpio_input(data->phy_irq_pin, 0);
at91_set_deglitch(data->phy_irq_pin, 1);
}
@ -449,11 +449,11 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
/* input/irq */
if (data->slot[0].detect_pin) {
if (gpio_is_valid(data->slot[0].detect_pin)) {
at91_set_gpio_input(data->slot[0].detect_pin, 1);
at91_set_deglitch(data->slot[0].detect_pin, 1);
}
if (data->slot[0].wp_pin)
if (gpio_is_valid(data->slot[0].wp_pin))
at91_set_gpio_input(data->slot[0].wp_pin, 1);
if (mmc_id == 0) { /* MCI0 */
@ -529,8 +529,8 @@ static struct resource nand_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_BASE_SYS + AT91_ECC,
.end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
.start = AT91SAM9G45_BASE_ECC,
.end = AT91SAM9G45_BASE_ECC + SZ_512 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -556,15 +556,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
/* enable pin */
if (data->enable_pin)
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
nand_data = *data;
@ -859,7 +859,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
at91_set_A_periph(AT91_PIN_PD6, 0); /* AC97RX */
/* reset */
if (data->reset_pin)
if (gpio_is_valid(data->reset_pin))
at91_set_gpio_output(data->reset_pin, 0);
ac97_data = *data;
@ -1009,10 +1009,24 @@ static void __init at91_add_device_tc(void) { }
* -------------------------------------------------------------------- */
#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
static struct resource rtc_resources[] = {
[0] = {
.start = AT91SAM9G45_BASE_RTC,
.end = AT91SAM9G45_BASE_RTC + SZ_256 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_ID_SYS,
.end = AT91_ID_SYS,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device at91sam9g45_rtc_device = {
.name = "at91_rtc",
.id = -1,
.num_resources = 0,
.resource = rtc_resources,
.num_resources = ARRAY_SIZE(rtc_resources),
};
static void __init at91_add_device_rtc(void)
@ -1081,8 +1095,8 @@ void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
static struct resource rtt_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT,
.end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
.start = AT91SAM9G45_BASE_RTT,
.end = AT91SAM9G45_BASE_RTT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -1133,10 +1147,19 @@ static void __init at91_add_device_trng(void) {}
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct resource wdt_resources[] = {
{
.start = AT91SAM9G45_BASE_WDT,
.end = AT91SAM9G45_BASE_WDT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9g45_wdt_device = {
.name = "at91_wdt",
.id = -1,
.num_resources = 0,
.resource = wdt_resources,
.num_resources = ARRAY_SIZE(wdt_resources),
};
static void __init at91_add_device_watchdog(void)
@ -1332,8 +1355,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.start = AT91SAM9G45_BASE_DBGU,
.end = AT91SAM9G45_BASE_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {

38
arch/arm/mach-at91/at91sam9rl.c
View file

@ -10,7 +10,6 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
@ -20,11 +19,11 @@
#include <mach/at91sam9rl.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include <mach/at91_shdwc.h>
#include "soc.h"
#include "generic.h"
#include "clock.h"
#include "sam9_smc.h"
/* --------------------------------------------------------------------
* Clocks
@ -184,6 +183,10 @@ static struct clk_lookup periph_clocks_lookups[] = {
CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
CLKDEV_CON_ID("pioA", &pioA_clk),
CLKDEV_CON_ID("pioB", &pioB_clk),
CLKDEV_CON_ID("pioC", &pioC_clk),
CLKDEV_CON_ID("pioD", &pioD_clk),
};
static struct clk_lookup usart_clocks_lookups[] = {
@ -243,32 +246,22 @@ void __init at91sam9rl_set_console_clock(int id)
* GPIO
* -------------------------------------------------------------------- */
static struct at91_gpio_bank at91sam9rl_gpio[] = {
static struct at91_gpio_bank at91sam9rl_gpio[] __initdata = {
{
.id = AT91SAM9RL_ID_PIOA,
.offset = AT91_PIOA,
.clock = &pioA_clk,
.regbase = AT91SAM9RL_BASE_PIOA,
}, {
.id = AT91SAM9RL_ID_PIOB,
.offset = AT91_PIOB,
.clock = &pioB_clk,
.regbase = AT91SAM9RL_BASE_PIOB,
}, {
.id = AT91SAM9RL_ID_PIOC,
.offset = AT91_PIOC,
.clock = &pioC_clk,
.regbase = AT91SAM9RL_BASE_PIOC,
}, {
.id = AT91SAM9RL_ID_PIOD,
.offset = AT91_PIOD,
.clock = &pioD_clk,
.regbase = AT91SAM9RL_BASE_PIOD,
}
};
static void at91sam9rl_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9RL processor initialization
* -------------------------------------------------------------------- */
@ -290,10 +283,16 @@ static void __init at91sam9rl_map_io(void)
at91_init_sram(0, AT91SAM9RL_SRAM_BASE, sram_size);
}
static void __init at91sam9rl_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9RL_BASE_SHDWC);
at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC);
}
static void __init at91sam9rl_initialize(void)
{
at91_arch_reset = at91sam9_alt_reset;
pm_power_off = at91sam9rl_poweroff;
arm_pm_restart = at91sam9_alt_restart;
at91_extern_irq = (1 << AT91SAM9RL_ID_IRQ0);
/* Register GPIO subsystem */
@ -345,6 +344,7 @@ static unsigned int at91sam9rl_default_irq_priority[NR_AIC_IRQS] __initdata = {
struct at91_init_soc __initdata at91sam9rl_soc = {
.map_io = at91sam9rl_map_io,
.default_irq_priority = at91sam9rl_default_irq_priority,
.ioremap_registers = at91sam9rl_ioremap_registers,
.register_clocks = at91sam9rl_register_clocks,
.init = at91sam9rl_initialize,
};

43
arch/arm/mach-at91/at91sam9rl_devices.c
View file

@ -39,8 +39,8 @@ static struct at_dma_platform_data atdma_pdata = {
static struct resource hdmac_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DMA,
.end = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
.start = AT91SAM9RL_BASE_DMA,
.end = AT91SAM9RL_BASE_DMA + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[2] = {
@ -147,7 +147,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data)
usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
if (data && data->vbus_pin > 0) {
if (data && gpio_is_valid(data->vbus_pin)) {
at91_set_gpio_input(data->vbus_pin, 0);
at91_set_deglitch(data->vbus_pin, 1);
usba_udc_data.pdata.vbus_pin = data->vbus_pin;
@ -201,13 +201,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
return;
/* input/irq */
if (data->det_pin) {
if (gpio_is_valid(data->det_pin)) {
at91_set_gpio_input(data->det_pin, 1);
at91_set_deglitch(data->det_pin, 1);
}
if (data->wp_pin)
if (gpio_is_valid(data->wp_pin))
at91_set_gpio_input(data->wp_pin, 1);
if (data->vcc_pin)
if (gpio_is_valid(data->vcc_pin))
at91_set_gpio_output(data->vcc_pin, 0);
/* CLK */
@ -248,8 +248,8 @@ static struct resource nand_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AT91_BASE_SYS + AT91_ECC,
.end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
.start = AT91SAM9RL_BASE_ECC,
.end = AT91SAM9RL_BASE_ECC + SZ_512 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -275,15 +275,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
/* enable pin */
if (data->enable_pin)
if (gpio_is_valid(data->enable_pin))
at91_set_gpio_output(data->enable_pin, 1);
/* ready/busy pin */
if (data->rdy_pin)
if (gpio_is_valid(data->rdy_pin))
at91_set_gpio_input(data->rdy_pin, 1);
/* card detect pin */
if (data->det_pin)
if (gpio_is_valid(data->det_pin))
at91_set_gpio_input(data->det_pin, 1);
at91_set_A_periph(AT91_PIN_PB4, 0); /* NANDOE */
@ -483,7 +483,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
at91_set_A_periph(AT91_PIN_PD4, 0); /* AC97RX */
/* reset */
if (data->reset_pin)
if (gpio_is_valid(data->reset_pin))
at91_set_gpio_output(data->reset_pin, 0);
ac97_data = *data;
@ -685,8 +685,8 @@ static void __init at91_add_device_rtc(void) {}
static struct resource rtt_resources[] = {
{
.start = AT91_BASE_SYS + AT91_RTT,
.end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
.start = AT91SAM9RL_BASE_RTT,
.end = AT91SAM9RL_BASE_RTT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
@ -709,10 +709,19 @@ static void __init at91_add_device_rtt(void)
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
static struct resource wdt_resources[] = {
{
.start = AT91SAM9RL_BASE_WDT,
.end = AT91SAM9RL_BASE_WDT + SZ_16 - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device at91sam9rl_wdt_device = {
.name = "at91_wdt",
.id = -1,
.num_resources = 0,
.resource = wdt_resources,
.num_resources = ARRAY_SIZE(wdt_resources),
};
static void __init at91_add_device_watchdog(void)
@ -908,8 +917,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
#if defined(CONFIG_SERIAL_ATMEL)
static struct resource dbgu_resources[] = {
[0] = {
.start = AT91_BASE_SYS + AT91_DBGU,
.end = AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
.start = AT91SAM9RL_BASE_DBGU,
.end = AT91SAM9RL_BASE_DBGU + SZ_512 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {

2
arch/arm/mach-at91/board-1arm.c
View file

@ -70,6 +70,8 @@ static struct macb_platform_data __initdata onearm_eth_data = {
static struct at91_usbh_data __initdata onearm_usbh_data = {
.ports = 1,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
static struct at91_udc_data __initdata onearm_udc_data = {

8
arch/arm/mach-at91/board-afeb-9260v1.c
View file

@ -75,6 +75,8 @@ static void __init afeb9260_init_early(void)
*/
static struct at91_usbh_data __initdata afeb9260_usbh_data = {
.ports = 1,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
/*
@ -82,7 +84,7 @@ static struct at91_usbh_data __initdata afeb9260_usbh_data = {
*/
static struct at91_udc_data __initdata afeb9260_udc_data = {
.vbus_pin = AT91_PIN_PC5,
.pullup_pin = 0, /* pull-up driven by UDC */
.pullup_pin = -EINVAL, /* pull-up driven by UDC */
};
@ -138,6 +140,7 @@ static struct atmel_nand_data __initdata afeb9260_nand_data = {
.bus_width_16 = 0,
.parts = afeb9260_nand_partition,
.num_parts = ARRAY_SIZE(afeb9260_nand_partition),
.det_pin = -EINVAL,
};
@ -149,6 +152,7 @@ static struct at91_mmc_data __initdata afeb9260_mmc_data = {
.wp_pin = AT91_PIN_PC4,
.slot_b = 1,
.wire4 = 1,
.vcc_pin = -EINVAL,
};
@ -169,6 +173,8 @@ static struct i2c_board_info __initdata afeb9260_i2c_devices[] = {
static struct at91_cf_data afeb9260_cf_data = {
.chipselect = 4,
.irq_pin = AT91_PIN_PA6,
.det_pin = -EINVAL,
.vcc_pin = -EINVAL,
.rst_pin = AT91_PIN_PA7,
.flags = AT91_CF_TRUE_IDE,
};

6
arch/arm/mach-at91/board-cam60.c
View file

@ -62,6 +62,8 @@ static void __init cam60_init_early(void)
*/
static struct at91_usbh_data __initdata cam60_usbh_data = {
.ports = 1,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
@ -135,7 +137,7 @@ static struct mtd_partition __initdata cam60_nand_partition[] = {
static struct atmel_nand_data __initdata cam60_nand_data = {
.ale = 21,
.cle = 22,
// .det_pin = ... not there
.det_pin = -EINVAL,
.rdy_pin = AT91_PIN_PA9,
.enable_pin = AT91_PIN_PA7,
.parts = cam60_nand_partition,
@ -163,7 +165,7 @@ static struct sam9_smc_config __initdata cam60_nand_smc_config = {
static void __init cam60_add_device_nand(void)
{
/* configure chip-select 3 (NAND) */
sam9_smc_configure(3, &cam60_nand_smc_config);
sam9_smc_configure(0, 3, &cam60_nand_smc_config);
at91_add_device_nand(&cam60_nand_data);
}

19
arch/arm/mach-at91/board-cap9adk.c
View file

@ -70,6 +70,8 @@ static void __init cap9adk_init_early(void)
*/
static struct at91_usbh_data __initdata cap9adk_usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
/*
@ -144,9 +146,9 @@ static struct spi_board_info cap9adk_spi_devices[] = {
*/
static struct at91_mmc_data __initdata cap9adk_mmc_data = {
.wire4 = 1,
// .det_pin = ... not connected
// .wp_pin = ... not connected
// .vcc_pin = ... not connected
.det_pin = -EINVAL,
.wp_pin = -EINVAL,
.vcc_pin = -EINVAL,
};
@ -154,6 +156,7 @@ static struct at91_mmc_data __initdata cap9adk_mmc_data = {
* MACB Ethernet device
*/
static struct macb_platform_data __initdata cap9adk_macb_data = {
.phy_irq_pin = -EINVAL,
.is_rmii = 1,
};
@ -172,8 +175,8 @@ static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
static struct atmel_nand_data __initdata cap9adk_nand_data = {
.ale = 21,
.cle = 22,
// .det_pin = ... not connected
// .rdy_pin = ... not connected
.det_pin = -EINVAL,
.rdy_pin = -EINVAL,
.enable_pin = AT91_PIN_PD15,
.parts = cap9adk_nand_partitions,
.num_parts = ARRAY_SIZE(cap9adk_nand_partitions),
@ -212,7 +215,7 @@ static void __init cap9adk_add_device_nand(void)
cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8;
/* configure chip-select 3 (NAND) */
sam9_smc_configure(3, &cap9adk_nand_smc_config);
sam9_smc_configure(0, 3, &cap9adk_nand_smc_config);
at91_add_device_nand(&cap9adk_nand_data);
}
@ -282,7 +285,7 @@ static __init void cap9adk_add_device_nor(void)
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
/* configure chip-select 0 (NOR) */
sam9_smc_configure(0, &cap9adk_nor_smc_config);
sam9_smc_configure(0, 0, &cap9adk_nor_smc_config);
platform_device_register(&cap9adk_nor_flash);
}
@ -351,7 +354,7 @@ static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
* AC97
*/
static struct ac97c_platform_data cap9adk_ac97_data = {
// .reset_pin = ... not connected
.reset_pin = -EINVAL,
};

7
arch/arm/mach-at91/board-carmeva.c
View file

@ -64,6 +64,8 @@ static struct macb_platform_data __initdata carmeva_eth_data = {
static struct at91_usbh_data __initdata carmeva_usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
static struct at91_udc_data __initdata carmeva_udc_data = {
@ -75,8 +77,8 @@ static struct at91_udc_data __initdata carmeva_udc_data = {
// static struct at91_cf_data __initdata carmeva_cf_data = {
// .det_pin = AT91_PIN_PB0,
// .rst_pin = AT91_PIN_PC5,
// .irq_pin = ... not connected
// .vcc_pin = ... always powered
// .irq_pin = -EINVAL,
// .vcc_pin = -EINVAL,
// };
static struct at91_mmc_data __initdata carmeva_mmc_data = {
@ -84,6 +86,7 @@ static struct at91_mmc_data __initdata carmeva_mmc_data = {
.wire4 = 1,
.det_pin = AT91_PIN_PB10,
.wp_pin = AT91_PIN_PC14,
.vcc_pin = -EINVAL,
};
static struct spi_board_info carmeva_spi_devices[] = {

12
arch/arm/mach-at91/board-cpu9krea.c
View file

@ -86,6 +86,8 @@ static void __init cpu9krea_init_early(void)
*/
static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
/*
@ -93,13 +95,14 @@ static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
*/
static struct at91_udc_data __initdata cpu9krea_udc_data = {
.vbus_pin = AT91_PIN_PC8,
.pullup_pin = 0, /* pull-up driven by UDC */
.pullup_pin = -EINVAL, /* pull-up driven by UDC */
};
/*
* MACB Ethernet device
*/
static struct macb_platform_data __initdata cpu9krea_macb_data = {
.phy_irq_pin = -EINVAL,
.is_rmii = 1,
};
@ -112,6 +115,7 @@ static struct atmel_nand_data __initdata cpu9krea_nand_data = {
.rdy_pin = AT91_PIN_PC13,
.enable_pin = AT91_PIN_PC14,
.bus_width_16 = 0,
.det_pin = -EINVAL,
};
#ifdef CONFIG_MACH_CPU9260
@ -156,7 +160,7 @@ static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
static void __init cpu9krea_add_device_nand(void)
{
sam9_smc_configure(3, &cpu9krea_nand_smc_config);
sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
at91_add_device_nand(&cpu9krea_nand_data);
}
@ -238,7 +242,7 @@ static __init void cpu9krea_add_device_nor(void)
at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
/* configure chip-select 0 (NOR) */
sam9_smc_configure(0, &cpu9krea_nor_smc_config);
sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
platform_device_register(&cpu9krea_nor_flash);
}
@ -337,6 +341,8 @@ static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
.slot_b = 0,
.wire4 = 1,
.det_pin = AT91_PIN_PA29,
.wp_pin = -EINVAL,
.vcc_pin = -EINVAL,
};
static void __init cpu9krea_board_init(void)

5
arch/arm/mach-at91/board-cpuat91.c
View file

@ -83,11 +83,14 @@ static void __init cpuat91_init_early(void)
}
static struct macb_platform_data __initdata cpuat91_eth_data = {
.phy_irq_pin = -EINVAL,
.is_rmii = 1,
};
static struct at91_usbh_data __initdata cpuat91_usbh_data = {
.ports = 1,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
static struct at91_udc_data __initdata cpuat91_udc_data = {
@ -98,6 +101,8 @@ static struct at91_udc_data __initdata cpuat91_udc_data = {
static struct at91_mmc_data __initdata cpuat91_mmc_data = {
.det_pin = AT91_PIN_PC2,
.wire4 = 1,
.wp_pin = -EINVAL,
.vcc_pin = -EINVAL,
};
static struct physmap_flash_data cpuat91_flash_data = {

5
arch/arm/mach-at91/board-csb337.c
View file

@ -65,11 +65,13 @@ static struct macb_platform_data __initdata csb337_eth_data = {
static struct at91_usbh_data __initdata csb337_usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
static struct at91_udc_data __initdata csb337_udc_data = {
// this has no VBUS sensing pin
.pullup_pin = AT91_PIN_PA24,
.vbus_pin = -EINVAL,
};
static struct i2c_board_info __initdata csb337_i2c_devices[] = {
@ -98,6 +100,7 @@ static struct at91_mmc_data __initdata csb337_mmc_data = {
.slot_b = 0,
.wire4 = 1,
.wp_pin = AT91_PIN_PD6,
.vcc_pin = -EINVAL,
};
static struct spi_board_info csb337_spi_devices[] = {

2
arch/arm/mach-at91/board-csb637.c
View file

@ -59,6 +59,8 @@ static struct macb_platform_data __initdata csb637_eth_data = {
static struct at91_usbh_data __initdata csb637_usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
static struct at91_udc_data __initdata csb637_udc_data = {

3
arch/arm/mach-at91/board-dt.c
View file

@ -50,6 +50,7 @@ static void __init ek_init_early(void)
static struct atmel_nand_data __initdata ek_nand_data = {
.ale = 21,
.cle = 22,
.det_pin = -EINVAL,
.rdy_pin = AT91_PIN_PC8,
.enable_pin = AT91_PIN_PC14,
};
@ -82,7 +83,7 @@ static void __init ek_add_device_nand(void)
ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
/* configure chip-select 3 (NAND) */
sam9_smc_configure(3, &ek_nand_smc_config);
sam9_smc_configure(0, 3, &ek_nand_smc_config);
at91_add_device_nand(&ek_nand_data);
}

Some files were not shown because too many files have changed in this diff Show more