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Merge remote-tracking branch 'tip/core/rcu' into next.2012.09.25b

Browse source 
Resolved conflict in kernel/sched/core.c using Peter Zijlstra's
approach from https://lkml.org/lkml/2012/9/5/585.
This commit is contained in:
Paul E. McKenney 2012-09-25 10:03:56 -07:00
commit 593d1006cd
538 changed files with 4322 additions and 2348 deletions
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1
Documentation/i2c/busses/i2c-i801
View file

@ -21,6 +21,7 @@ Supported adapters:
* Intel DH89xxCC (PCH)
* Intel Panther Point (PCH)
* Intel Lynx Point (PCH)
* Intel Lynx Point-LP (PCH)
Datasheets: Publicly available at the Intel website
On Intel Patsburg and later chipsets, both the normal host SMBus controller

7
MAINTAINERS
View file

@ -3388,7 +3388,7 @@ M: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
L: linux-i2c@vger.kernel.org
W: http://i2c.wiki.kernel.org/
T: quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
T: git git://git.fluff.org/bjdooks/linux.git
T: git git://git.pengutronix.de/git/wsa/linux.git
S: Maintained
F: Documentation/i2c/
F: drivers/i2c/
@ -3666,11 +3666,12 @@ F: Documentation/networking/README.ipw2200
F: drivers/net/wireless/ipw2x00/
INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT)
M: Joseph Cihula <joseph.cihula@intel.com>
M: Richard L Maliszewski <richard.l.maliszewski@intel.com>
M: Gang Wei <gang.wei@intel.com>
M: Shane Wang <shane.wang@intel.com>
L: tboot-devel@lists.sourceforge.net
W: http://tboot.sourceforge.net
T: Mercurial http://www.bughost.org/repos.hg/tboot.hg
T: hg http://tboot.hg.sourceforge.net:8000/hgroot/tboot/tboot
S: Supported
F: Documentation/intel_txt.txt
F: include/linux/tboot.h

4
Makefile
View file

@ -1,8 +1,8 @@
VERSION = 3
PATCHLEVEL = 6
SUBLEVEL = 0
EXTRAVERSION = -rc5
NAME = Saber-toothed Squirrel
EXTRAVERSION = -rc7
NAME = Terrified Chipmunk
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"

6
arch/arm/Kconfig.debug
View file

@ -356,15 +356,15 @@ choice
is nothing connected to read from the DCC.
config DEBUG_SEMIHOSTING
bool "Kernel low-level debug output via semihosting I"
bool "Kernel low-level debug output via semihosting I/O"
help
Semihosting enables code running on an ARM target to use
the I/O facilities on a host debugger/emulator through a
simple SVC calls. The host debugger or emulator must have
simple SVC call. The host debugger or emulator must have
semihosting enabled for the special svc call to be trapped
otherwise the kernel will crash.
This is known to work with OpenOCD, as wellas
This is known to work with OpenOCD, as well as
ARM's Fast Models, or any other controlling environment
that implements semihosting.

4
arch/arm/Makefile
View file

@ -284,10 +284,10 @@ zImage Image xipImage bootpImage uImage: vmlinux
zinstall uinstall install: vmlinux
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
%.dtb:
%.dtb: scripts
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
dtbs:
dtbs: scripts
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
# We use MRPROPER_FILES and CLEAN_FILES now

5
arch/arm/boot/compressed/head.S
View file

@ -653,16 +653,21 @@ __armv7_mmu_cache_on:
mcrne p15, 0, r0, c8, c7, 0 @ flush I,D TLBs
#endif
mrc p15, 0, r0, c1, c0, 0 @ read control reg
bic r0, r0, #1 << 28 @ clear SCTLR.TRE
orr r0, r0, #0x5000 @ I-cache enable, RR cache replacement
orr r0, r0, #0x003c @ write buffer
#ifdef CONFIG_MMU
#ifdef CONFIG_CPU_ENDIAN_BE8
orr r0, r0, #1 << 25 @ big-endian page tables
#endif
mrcne p15, 0, r6, c2, c0, 2 @ read ttb control reg
orrne r0, r0, #1 @ MMU enabled
movne r1, #0xfffffffd @ domain 0 = client
bic r6, r6, #1 << 31 @ 32-bit translation system
bic r6, r6, #3 << 0 @ use only ttbr0
mcrne p15, 0, r3, c2, c0, 0 @ load page table pointer
mcrne p15, 0, r1, c3, c0, 0 @ load domain access control
mcrne p15, 0, r6, c2, c0, 2 @ load ttb control
#endif
mcr p15, 0, r0, c7, c5, 4 @ ISB
mcr p15, 0, r0, c1, c0, 0 @ load control register

3
arch/arm/boot/dts/at91sam9260.dtsi
View file

@ -104,6 +104,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioB: gpio@fffff600 {
@ -113,6 +114,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioC: gpio@fffff800 {
@ -122,6 +124,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
dbgu: serial@fffff200 {

5
arch/arm/boot/dts/at91sam9263.dtsi
View file

@ -95,6 +95,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioB: gpio@fffff400 {
@ -104,6 +105,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioC: gpio@fffff600 {
@ -113,6 +115,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioD: gpio@fffff800 {
@ -122,6 +125,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioE: gpio@fffffa00 {
@ -131,6 +135,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
dbgu: serial@ffffee00 {

5
arch/arm/boot/dts/at91sam9g45.dtsi
View file

@ -113,6 +113,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioB: gpio@fffff400 {
@ -122,6 +123,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioC: gpio@fffff600 {
@ -131,6 +133,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioD: gpio@fffff800 {
@ -140,6 +143,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioE: gpio@fffffa00 {
@ -149,6 +153,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
dbgu: serial@ffffee00 {

4
arch/arm/boot/dts/at91sam9n12.dtsi
View file

@ -107,6 +107,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioB: gpio@fffff600 {
@ -116,6 +117,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioC: gpio@fffff800 {
@ -125,6 +127,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioD: gpio@fffffa00 {
@ -134,6 +137,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
dbgu: serial@fffff200 {

4
arch/arm/boot/dts/at91sam9x5.dtsi
View file

@ -115,6 +115,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioB: gpio@fffff600 {
@ -124,6 +125,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioC: gpio@fffff800 {
@ -133,6 +135,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
pioD: gpio@fffffa00 {
@ -142,6 +145,7 @@
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
#interrupt-cells = <2>;
};
dbgu: serial@fffff200 {

8
arch/arm/include/asm/assembler.h
View file

@ -320,4 +320,12 @@
.size \name , . - \name
.endm
.macro check_uaccess, addr:req, size:req, limit:req, tmp:req, bad:req
#ifndef CONFIG_CPU_USE_DOMAINS
adds \tmp, \addr, #\size - 1
sbcccs \tmp, \tmp, \limit
bcs \bad
#endif
.endm
#endif /* __ASM_ASSEMBLER_H__ */

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

@ -187,6 +187,7 @@ static inline unsigned long __phys_to_virt(unsigned long x)
#define __phys_to_virt(x) ((x) - PHYS_OFFSET + PAGE_OFFSET)
#endif
#endif
#endif /* __ASSEMBLY__ */
#ifndef PHYS_OFFSET
#ifdef PLAT_PHYS_OFFSET
@ -196,6 +197,8 @@ static inline unsigned long __phys_to_virt(unsigned long x)
#endif
#endif
#ifndef __ASSEMBLY__
/*
* PFNs are used to describe any physical page; this means
* PFN 0 == physical address 0.

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

@ -199,6 +199,9 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
{
pgtable_page_dtor(pte);
#ifdef CONFIG_ARM_LPAE
tlb_add_flush(tlb, addr);
#else
/*
* With the classic ARM MMU, a pte page has two corresponding pmd
* entries, each covering 1MB.
@ -206,6 +209,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
addr &= PMD_MASK;
tlb_add_flush(tlb, addr + SZ_1M - PAGE_SIZE);
tlb_add_flush(tlb, addr + SZ_1M);
#endif
tlb_remove_page(tlb, pte);
}

58
arch/arm/include/asm/uaccess.h
View file

@ -101,28 +101,39 @@ extern int __get_user_1(void *);
extern int __get_user_2(void *);
extern int __get_user_4(void *);
#define __get_user_x(__r2,__p,__e,__s,__i...) \
#define __GUP_CLOBBER_1 "lr", "cc"
#ifdef CONFIG_CPU_USE_DOMAINS
#define __GUP_CLOBBER_2 "ip", "lr", "cc"
#else
#define __GUP_CLOBBER_2 "lr", "cc"
#endif
#define __GUP_CLOBBER_4 "lr", "cc"
#define __get_user_x(__r2,__p,__e,__l,__s) \
__asm__ __volatile__ ( \
__asmeq("%0", "r0") __asmeq("%1", "r2") \
__asmeq("%3", "r1") \
"bl __get_user_" #__s \
: "=&r" (__e), "=r" (__r2) \
: "0" (__p) \
: __i, "cc")
: "0" (__p), "r" (__l) \
: __GUP_CLOBBER_##__s)
#define get_user(x,p) \
#define __get_user_check(x,p) \
({ \
unsigned long __limit = current_thread_info()->addr_limit - 1; \
register const typeof(*(p)) __user *__p asm("r0") = (p);\
register unsigned long __r2 asm("r2"); \
register unsigned long __l asm("r1") = __limit; \
register int __e asm("r0"); \
switch (sizeof(*(__p))) { \
case 1: \
__get_user_x(__r2, __p, __e, 1, "lr"); \
break; \
__get_user_x(__r2, __p, __e, __l, 1); \
break; \
case 2: \
__get_user_x(__r2, __p, __e, 2, "r3", "lr"); \
__get_user_x(__r2, __p, __e, __l, 2); \
break; \
case 4: \
__get_user_x(__r2, __p, __e, 4, "lr"); \
__get_user_x(__r2, __p, __e, __l, 4); \
break; \
default: __e = __get_user_bad(); break; \
} \
@ -130,42 +141,57 @@ extern int __get_user_4(void *);
__e; \
})
#define get_user(x,p) \
({ \
might_fault(); \
__get_user_check(x,p); \
})
extern int __put_user_1(void *, unsigned int);
extern int __put_user_2(void *, unsigned int);
extern int __put_user_4(void *, unsigned int);
extern int __put_user_8(void *, unsigned long long);
#define __put_user_x(__r2,__p,__e,__s) \
#define __put_user_x(__r2,__p,__e,__l,__s) \
__asm__ __volatile__ ( \
__asmeq("%0", "r0") __asmeq("%2", "r2") \
__asmeq("%3", "r1") \
"bl __put_user_" #__s \
: "=&r" (__e) \
: "0" (__p), "r" (__r2) \
: "0" (__p), "r" (__r2), "r" (__l) \
: "ip", "lr", "cc")
#define put_user(x,p) \
#define __put_user_check(x,p) \
({ \
unsigned long __limit = current_thread_info()->addr_limit - 1; \
register const typeof(*(p)) __r2 asm("r2") = (x); \
register const typeof(*(p)) __user *__p asm("r0") = (p);\
register unsigned long __l asm("r1") = __limit; \
register int __e asm("r0"); \
switch (sizeof(*(__p))) { \
case 1: \
__put_user_x(__r2, __p, __e, 1); \
__put_user_x(__r2, __p, __e, __l, 1); \
break; \
case 2: \
__put_user_x(__r2, __p, __e, 2); \
__put_user_x(__r2, __p, __e, __l, 2); \
break; \
case 4: \
__put_user_x(__r2, __p, __e, 4); \
__put_user_x(__r2, __p, __e, __l, 4); \
break; \
case 8: \
__put_user_x(__r2, __p, __e, 8); \
__put_user_x(__r2, __p, __e, __l, 8); \
break; \
default: __e = __put_user_bad(); break; \
} \
__e; \
})
#define put_user(x,p) \
({ \
might_fault(); \
__put_user_check(x,p); \
})
#else /* CONFIG_MMU */
/*
@ -219,6 +245,7 @@ do { \
unsigned long __gu_addr = (unsigned long)(ptr); \
unsigned long __gu_val; \
__chk_user_ptr(ptr); \
might_fault(); \
switch (sizeof(*(ptr))) { \
case 1: __get_user_asm_byte(__gu_val,__gu_addr,err); break; \
case 2: __get_user_asm_half(__gu_val,__gu_addr,err); break; \
@ -300,6 +327,7 @@ do { \
unsigned long __pu_addr = (unsigned long)(ptr); \
__typeof__(*(ptr)) __pu_val = (x); \
__chk_user_ptr(ptr); \
might_fault(); \
switch (sizeof(*(ptr))) { \
case 1: __put_user_asm_byte(__pu_val,__pu_addr,err); break; \
case 2: __put_user_asm_half(__pu_val,__pu_addr,err); break; \

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

@ -404,6 +404,7 @@
#define __NR_setns (__NR_SYSCALL_BASE+375)
#define __NR_process_vm_readv (__NR_SYSCALL_BASE+376)
#define __NR_process_vm_writev (__NR_SYSCALL_BASE+377)
/* 378 for kcmp */
/*
* The following SWIs are ARM private.
@ -483,6 +484,7 @@
*/
#define __IGNORE_fadvise64_64
#define __IGNORE_migrate_pages
#define __IGNORE_kcmp
#endif /* __KERNEL__ */
#endif /* __ASM_ARM_UNISTD_H */

1
arch/arm/kernel/calls.S
View file

@ -387,6 +387,7 @@
/* 375 */ CALL(sys_setns)
CALL(sys_process_vm_readv)
CALL(sys_process_vm_writev)
CALL(sys_ni_syscall) /* reserved for sys_kcmp */
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted

62
arch/arm/kernel/hw_breakpoint.c
View file

@ -159,6 +159,12 @@ static int debug_arch_supported(void)
arch >= ARM_DEBUG_ARCH_V7_1;
}
/* Can we determine the watchpoint access type from the fsr? */
static int debug_exception_updates_fsr(void)
{
return 0;
}
/* Determine number of WRP registers available. */
static int get_num_wrp_resources(void)
{
@ -604,13 +610,14 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
/* Aligned */
break;
case 1:
/* Allow single byte watchpoint. */
if (info->ctrl.len == ARM_BREAKPOINT_LEN_1)
break;
case 2:
/* Allow halfword watchpoints and breakpoints. */
if (info->ctrl.len == ARM_BREAKPOINT_LEN_2)
break;
case 3:
/* Allow single byte watchpoint. */
if (info->ctrl.len == ARM_BREAKPOINT_LEN_1)
break;
default:
ret = -EINVAL;
goto out;
@ -619,18 +626,35 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
info->address &= ~alignment_mask;
info->ctrl.len <<= offset;
/*
* Currently we rely on an overflow handler to take
* care of single-stepping the breakpoint when it fires.
* In the case of userspace breakpoints on a core with V7 debug,
* we can use the mismatch feature as a poor-man's hardware
* single-step, but this only works for per-task breakpoints.
*/
if (!bp->overflow_handler && (arch_check_bp_in_kernelspace(bp) ||
!core_has_mismatch_brps() || !bp->hw.bp_target)) {
pr_warning("overflow handler required but none found\n");
ret = -EINVAL;
if (!bp->overflow_handler) {
/*
* Mismatch breakpoints are required for single-stepping
* breakpoints.
*/
if (!core_has_mismatch_brps())
return -EINVAL;
/* We don't allow mismatch breakpoints in kernel space. */
if (arch_check_bp_in_kernelspace(bp))
return -EPERM;
/*
* Per-cpu breakpoints are not supported by our stepping
* mechanism.
*/
if (!bp->hw.bp_target)
return -EINVAL;
/*
* We only support specific access types if the fsr
* reports them.
*/
if (!debug_exception_updates_fsr() &&
(info->ctrl.type == ARM_BREAKPOINT_LOAD ||
info->ctrl.type == ARM_BREAKPOINT_STORE))
return -EINVAL;
}
out:
return ret;
}
@ -706,10 +730,12 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr,
goto unlock;
/* Check that the access type matches. */
access = (fsr & ARM_FSR_ACCESS_MASK) ? HW_BREAKPOINT_W :
HW_BREAKPOINT_R;
if (!(access & hw_breakpoint_type(wp)))
goto unlock;
if (debug_exception_updates_fsr()) {
access = (fsr & ARM_FSR_ACCESS_MASK) ?
HW_BREAKPOINT_W : HW_BREAKPOINT_R;
if (!(access & hw_breakpoint_type(wp)))
goto unlock;
}
/* We have a winner. */
info->trigger = addr;

48
arch/arm/kernel/smp_twd.c
View file

@ -11,7 +11,6 @@
#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>
@ -96,7 +95,52 @@ static void twd_timer_stop(struct clock_event_device *clk)
disable_percpu_irq(clk->irq);
}
#ifdef CONFIG_CPU_FREQ
#ifdef CONFIG_COMMON_CLK
/*
* 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 *new_rate)
{
twd_timer_rate = *((unsigned long *) new_rate);
clockevents_update_freq(*__this_cpu_ptr(twd_evt), twd_timer_rate);
}
static int twd_rate_change(struct notifier_block *nb,
unsigned long flags, void *data)
{
struct clk_notifier_data *cnd = 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 (flags == POST_RATE_CHANGE)
smp_call_function(twd_update_frequency,
(void *)&cnd->new_rate, 1);
return NOTIFY_OK;
}
static struct notifier_block twd_clk_nb = {
.notifier_call = twd_rate_change,
};
static int twd_clk_init(void)
{
if (twd_evt && *__this_cpu_ptr(twd_evt) && !IS_ERR(twd_clk))
return clk_notifier_register(twd_clk, &twd_clk_nb);
return 0;
}
core_initcall(twd_clk_init);
#elif defined (CONFIG_CPU_FREQ)
#include <linux/cpufreq.h>
/*
* Updates clockevent frequency when the cpu frequency changes.

11
arch/arm/kernel/traps.c
View file

@ -420,20 +420,23 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
#endif
instr = *(u32 *) pc;
} else if (thumb_mode(regs)) {
get_user(instr, (u16 __user *)pc);
if (get_user(instr, (u16 __user *)pc))
goto die_sig;
if (is_wide_instruction(instr)) {
unsigned int instr2;
get_user(instr2, (u16 __user *)pc+1);
if (get_user(instr2, (u16 __user *)pc+1))
goto die_sig;
instr <<= 16;
instr |= instr2;
}
} else {
get_user(instr, (u32 __user *)pc);
} else if (get_user(instr, (u32 __user *)pc)) {
goto die_sig;
}
if (call_undef_hook(regs, instr) == 0)
return;
die_sig:
#ifdef CONFIG_DEBUG_USER
if (user_debug & UDBG_UNDEFINED) {
printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n",

1
arch/arm/lib/delay.c
View file

@ -59,6 +59,7 @@ void __init init_current_timer_delay(unsigned long freq)
{
pr_info("Switching to timer-based delay loop\n");
lpj_fine = freq / HZ;
loops_per_jiffy = lpj_fine;
arm_delay_ops.delay = __timer_delay;
arm_delay_ops.const_udelay = __timer_const_udelay;
arm_delay_ops.udelay = __timer_udelay;

23
arch/arm/lib/getuser.S
View file

@ -16,8 +16,9 @@
* __get_user_X
*
* Inputs: r0 contains the address
* r1 contains the address limit, which must be preserved
* Outputs: r0 is the error code
* r2, r3 contains the zero-extended value
* r2 contains the zero-extended value
* lr corrupted
*
* No other registers must be altered. (see <asm/uaccess.h>
@ -27,33 +28,39 @@
* Note also that it is intended that __get_user_bad is not global.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/errno.h>
#include <asm/domain.h>
ENTRY(__get_user_1)
check_uaccess r0, 1, r1, r2, __get_user_bad
1: TUSER(ldrb) r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__get_user_1)
ENTRY(__get_user_2)
#ifdef CONFIG_THUMB2_KERNEL
2: TUSER(ldrb) r2, [r0]
3: TUSER(ldrb) r3, [r0, #1]
check_uaccess r0, 2, r1, r2, __get_user_bad
#ifdef CONFIG_CPU_USE_DOMAINS
rb .req ip
2: ldrbt r2, [r0], #1
3: ldrbt rb, [r0], #0
#else
2: TUSER(ldrb) r2, [r0], #1
3: TUSER(ldrb) r3, [r0]
rb .req r0
2: ldrb r2, [r0]
3: ldrb rb, [r0, #1]
#endif
#ifndef __ARMEB__
orr r2, r2, r3, lsl #8
orr r2, r2, rb, lsl #8
#else
orr r2, r3, r2, lsl #8
orr r2, rb, r2, lsl #8
#endif
mov r0, #0
mov pc, lr
ENDPROC(__get_user_2)
ENTRY(__get_user_4)
check_uaccess r0, 4, r1, r2, __get_user_bad
4: TUSER(ldr) r2, [r0]
mov r0, #0
mov pc, lr

6
arch/arm/lib/putuser.S
View file

@ -16,6 +16,7 @@
* __put_user_X
*
* Inputs: r0 contains the address
* r1 contains the address limit, which must be preserved
* r2, r3 contains the value
* Outputs: r0 is the error code
* lr corrupted
@ -27,16 +28,19 @@
* Note also that it is intended that __put_user_bad is not global.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/errno.h>
#include <asm/domain.h>
ENTRY(__put_user_1)
check_uaccess r0, 1, r1, ip, __put_user_bad
1: TUSER(strb) r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__put_user_1)
ENTRY(__put_user_2)
check_uaccess r0, 2, r1, ip, __put_user_bad
mov ip, r2, lsr #8
#ifdef CONFIG_THUMB2_KERNEL
#ifndef __ARMEB__
@ -60,12 +64,14 @@ ENTRY(__put_user_2)
ENDPROC(__put_user_2)
ENTRY(__put_user_4)
check_uaccess r0, 4, r1, ip, __put_user_bad
4: TUSER(str) r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__put_user_4)
ENTRY(__put_user_8)
check_uaccess r0, 8, r1, ip, __put_user_bad
#ifdef CONFIG_THUMB2_KERNEL
5: TUSER(str) r2, [r0]
6: TUSER(str) r3, [r0, #4]

8
arch/arm/mach-imx/clk-imx25.c
View file

@ -222,10 +222,8 @@ int __init mx25_clocks_init(void)
clk_register_clkdev(clk[lcdc_ipg], "ipg", "imx-fb.0");
clk_register_clkdev(clk[lcdc_ahb], "ahb", "imx-fb.0");
clk_register_clkdev(clk[wdt_ipg], NULL, "imx2-wdt.0");
clk_register_clkdev(clk[ssi1_ipg_per], "per", "imx-ssi.0");
clk_register_clkdev(clk[ssi1_ipg], "ipg", "imx-ssi.0");
clk_register_clkdev(clk[ssi2_ipg_per], "per", "imx-ssi.1");
clk_register_clkdev(clk[ssi2_ipg], "ipg", "imx-ssi.1");
clk_register_clkdev(clk[ssi1_ipg], NULL, "imx-ssi.0");
clk_register_clkdev(clk[ssi2_ipg], NULL, "imx-ssi.1");
clk_register_clkdev(clk[esdhc1_ipg_per], "per", "sdhci-esdhc-imx25.0");
clk_register_clkdev(clk[esdhc1_ipg], "ipg", "sdhci-esdhc-imx25.0");
clk_register_clkdev(clk[esdhc1_ahb], "ahb", "sdhci-esdhc-imx25.0");
@ -243,6 +241,6 @@ int __init mx25_clocks_init(void)
clk_register_clkdev(clk[sdma_ahb], "ahb", "imx35-sdma");
clk_register_clkdev(clk[iim_ipg], "iim", NULL);
mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), MX25_INT_GPT1);
return 0;
}

6
arch/arm/mach-imx/clk-imx35.c
View file

@ -230,10 +230,8 @@ int __init mx35_clocks_init()
clk_register_clkdev(clk[ipu_gate], NULL, "mx3_sdc_fb");
clk_register_clkdev(clk[owire_gate], NULL, "mxc_w1");
clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma");
clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.0");
clk_register_clkdev(clk[ssi1_div_post], "per", "imx-ssi.0");
clk_register_clkdev(clk[ipg], "ipg", "imx-ssi.1");
clk_register_clkdev(clk[ssi2_div_post], "per", "imx-ssi.1");
clk_register_clkdev(clk[ssi1_gate], NULL, "imx-ssi.0");
clk_register_clkdev(clk[ssi2_gate], NULL, "imx-ssi.1");
/* i.mx35 has the i.mx21 type uart */
clk_register_clkdev(clk[uart1_gate], "per", "imx21-uart.0");
clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.0");

3
arch/arm/mach-imx/mach-armadillo5x0.c
View file

@ -526,7 +526,8 @@ static void __init armadillo5x0_init(void)
imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
/* set NAND page size to 2k if not configured via boot mode pins */
__raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
__raw_writel(__raw_readl(mx3_ccm_base + MXC_CCM_RCSR) |
(1 << 30), mx3_ccm_base + MXC_CCM_RCSR);
/* RTC */
/* Get RTC IRQ and register the chip */

3
arch/arm/mach-omap2/Kconfig
View file

@ -232,10 +232,11 @@ config MACH_OMAP3_PANDORA
select OMAP_PACKAGE_CBB
select REGULATOR_FIXED_VOLTAGE if REGULATOR
config MACH_OMAP3_TOUCHBOOK
config MACH_TOUCHBOOK
bool "OMAP3 Touch Book"
depends on ARCH_OMAP3
default y
select OMAP_PACKAGE_CBB
config MACH_OMAP_3430SDP
bool "OMAP 3430 SDP board"

2
arch/arm/mach-omap2/Makefile
View file

@ -255,7 +255,7 @@ obj-$(CONFIG_MACH_OMAP_3630SDP) += board-zoom-display.o
obj-$(CONFIG_MACH_CM_T35) += board-cm-t35.o
obj-$(CONFIG_MACH_CM_T3517) += board-cm-t3517.o
obj-$(CONFIG_MACH_IGEP0020) += board-igep0020.o
obj-$(CONFIG_MACH_OMAP3_TOUCHBOOK) += board-omap3touchbook.o
obj-$(CONFIG_MACH_TOUCHBOOK) += board-omap3touchbook.o
obj-$(CONFIG_MACH_OMAP_4430SDP) += board-4430sdp.o
obj-$(CONFIG_MACH_OMAP4_PANDA) += board-omap4panda.o

14
arch/arm/mach-omap2/clock33xx_data.c
View file

@ -1036,13 +1036,13 @@ static struct omap_clk am33xx_clks[] = {
CLK(NULL, "mmu_fck", &mmu_fck, CK_AM33XX),
CLK(NULL, "smartreflex0_fck", &smartreflex0_fck, CK_AM33XX),
CLK(NULL, "smartreflex1_fck", &smartreflex1_fck, CK_AM33XX),
CLK(NULL, "gpt1_fck", &timer1_fck, CK_AM33XX),
CLK(NULL, "gpt2_fck", &timer2_fck, CK_AM33XX),
CLK(NULL, "gpt3_fck", &timer3_fck, CK_AM33XX),
CLK(NULL, "gpt4_fck", &timer4_fck, CK_AM33XX),
CLK(NULL, "gpt5_fck", &timer5_fck, CK_AM33XX),
CLK(NULL, "gpt6_fck", &timer6_fck, CK_AM33XX),
CLK(NULL, "gpt7_fck", &timer7_fck, CK_AM33XX),
CLK(NULL, "timer1_fck", &timer1_fck, CK_AM33XX),
CLK(NULL, "timer2_fck", &timer2_fck, CK_AM33XX),
CLK(NULL, "timer3_fck", &timer3_fck, CK_AM33XX),
CLK(NULL, "timer4_fck", &timer4_fck, CK_AM33XX),
CLK(NULL, "timer5_fck", &timer5_fck, CK_AM33XX),
CLK(NULL, "timer6_fck", &timer6_fck, CK_AM33XX),
CLK(NULL, "timer7_fck", &timer7_fck, CK_AM33XX),
CLK(NULL, "usbotg_fck", &usbotg_fck, CK_AM33XX),
CLK(NULL, "ieee5000_fck", &ieee5000_fck, CK_AM33XX),
CLK(NULL, "wdt1_fck", &wdt1_fck, CK_AM33XX),

50
arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
View file

@ -241,6 +241,52 @@ static void omap3_clkdm_deny_idle(struct clockdomain *clkdm)
_clkdm_del_autodeps(clkdm);
}
static int omap3xxx_clkdm_clk_enable(struct clockdomain *clkdm)
{
bool hwsup = false;
if (!clkdm->clktrctrl_mask)
return 0;
hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
if (hwsup) {
/* Disable HW transitions when we are changing deps */
_disable_hwsup(clkdm);
_clkdm_add_autodeps(clkdm);
_enable_hwsup(clkdm);
} else {
if (clkdm->flags & CLKDM_CAN_FORCE_WAKEUP)
omap3_clkdm_wakeup(clkdm);
}
return 0;
}
static int omap3xxx_clkdm_clk_disable(struct clockdomain *clkdm)
{
bool hwsup = false;
if (!clkdm->clktrctrl_mask)
return 0;
hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
clkdm->clktrctrl_mask);
if (hwsup) {
/* Disable HW transitions when we are changing deps */
_disable_hwsup(clkdm);
_clkdm_del_autodeps(clkdm);
_enable_hwsup(clkdm);
} else {
if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)
omap3_clkdm_sleep(clkdm);
}
return 0;
}
struct clkdm_ops omap2_clkdm_operations = {
.clkdm_add_wkdep = omap2_clkdm_add_wkdep,
.clkdm_del_wkdep = omap2_clkdm_del_wkdep,
@ -267,6 +313,6 @@ struct clkdm_ops omap3_clkdm_operations = {
.clkdm_wakeup = omap3_clkdm_wakeup,
.clkdm_allow_idle = omap3_clkdm_allow_idle,
.clkdm_deny_idle = omap3_clkdm_deny_idle,
.clkdm_clk_enable = omap2_clkdm_clk_enable,
.clkdm_clk_disable = omap2_clkdm_clk_disable,
.clkdm_clk_enable = omap3xxx_clkdm_clk_enable,
.clkdm_clk_disable = omap3xxx_clkdm_clk_disable,
};

1
arch/arm/mach-omap2/cm-regbits-34xx.h
View file

@ -67,6 +67,7 @@
#define OMAP3430_EN_IVA2_DPLL_MASK (0x7 << 0)
/* CM_IDLEST_IVA2 */
#define OMAP3430_ST_IVA2_SHIFT 0
#define OMAP3430_ST_IVA2_MASK (1 << 0)
/* CM_IDLEST_PLL_IVA2 */

2
arch/arm/mach-omap2/omap-wakeupgen.c
View file

@ -46,7 +46,7 @@
static void __iomem *wakeupgen_base;
static void __iomem *sar_base;
static DEFINE_SPINLOCK(wakeupgen_lock);
static unsigned int irq_target_cpu[NR_IRQS];
static unsigned int irq_target_cpu[MAX_IRQS];
static unsigned int irq_banks = MAX_NR_REG_BANKS;
static unsigned int max_irqs = MAX_IRQS;
static unsigned int omap_secure_apis;

1
arch/arm/mach-omap2/omap_hwmod.c
View file

@ -1889,6 +1889,7 @@ static int _enable(struct omap_hwmod *oh)
_enable_sysc(oh);
}
} else {
_omap4_disable_module(oh);
_disable_clocks(oh);
pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n",
oh->name, r);

15
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
View file

@ -100,9 +100,9 @@ static struct omap_hwmod omap3xxx_mpu_hwmod = {
/* IVA2 (IVA2) */
static struct omap_hwmod_rst_info omap3xxx_iva_resets[] = {
{ .name = "logic", .rst_shift = 0 },
{ .name = "seq0", .rst_shift = 1 },
{ .name = "seq1", .rst_shift = 2 },
{ .name = "logic", .rst_shift = 0, .st_shift = 8 },
{ .name = "seq0", .rst_shift = 1, .st_shift = 9 },
{ .name = "seq1", .rst_shift = 2, .st_shift = 10 },
};
static struct omap_hwmod omap3xxx_iva_hwmod = {
@ -112,6 +112,15 @@ static struct omap_hwmod omap3xxx_iva_hwmod = {
.rst_lines = omap3xxx_iva_resets,
.rst_lines_cnt = ARRAY_SIZE(omap3xxx_iva_resets),
.main_clk = "iva2_ck",
.prcm = {
.omap2 = {
.module_offs = OMAP3430_IVA2_MOD,
.prcm_reg_id = 1,
.module_bit = OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_SHIFT,
.idlest_reg_id = 1,
.idlest_idle_bit = OMAP3430_ST_IVA2_SHIFT,
}
},
};
/* timer class */

12
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View file

@ -4210,7 +4210,7 @@ static struct omap_hwmod_ocp_if omap44xx_dsp__iva = {
};
/* dsp -> sl2if */
static struct omap_hwmod_ocp_if omap44xx_dsp__sl2if = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_dsp__sl2if = {
.master = &omap44xx_dsp_hwmod,
.slave = &omap44xx_sl2if_hwmod,
.clk = "dpll_iva_m5x2_ck",
@ -4828,7 +4828,7 @@ static struct omap_hwmod_ocp_if omap44xx_l3_main_2__iss = {
};
/* iva -> sl2if */
static struct omap_hwmod_ocp_if omap44xx_iva__sl2if = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_iva__sl2if = {
.master = &omap44xx_iva_hwmod,
.slave = &omap44xx_sl2if_hwmod,
.clk = "dpll_iva_m5x2_ck",
@ -5362,7 +5362,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_wkup__scrm = {
};
/* l3_main_2 -> sl2if */
static struct omap_hwmod_ocp_if omap44xx_l3_main_2__sl2if = {
static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l3_main_2__sl2if = {
.master = &omap44xx_l3_main_2_hwmod,
.slave = &omap44xx_sl2if_hwmod,
.clk = "l3_div_ck",
@ -6032,7 +6032,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_abe__dmic,
&omap44xx_l4_abe__dmic_dma,
&omap44xx_dsp__iva,
&omap44xx_dsp__sl2if,
/* &omap44xx_dsp__sl2if, */
&omap44xx_l4_cfg__dsp,
&omap44xx_l3_main_2__dss,
&omap44xx_l4_per__dss,
@ -6068,7 +6068,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_per__i2c4,
&omap44xx_l3_main_2__ipu,
&omap44xx_l3_main_2__iss,
&omap44xx_iva__sl2if,
/* &omap44xx_iva__sl2if, */
&omap44xx_l3_main_2__iva,
&omap44xx_l4_wkup__kbd,
&omap44xx_l4_cfg__mailbox,
@ -6099,7 +6099,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
&omap44xx_l4_cfg__cm_core,
&omap44xx_l4_wkup__prm,
&omap44xx_l4_wkup__scrm,
&omap44xx_l3_main_2__sl2if,
/* &omap44xx_l3_main_2__sl2if, */
&omap44xx_l4_abe__slimbus1,
&omap44xx_l4_abe__slimbus1_dma,
&omap44xx_l4_per__slimbus2,

7
arch/arm/mach-omap2/timer.c
View file

@ -260,6 +260,7 @@ static u32 notrace dmtimer_read_sched_clock(void)
return 0;
}
#ifdef CONFIG_OMAP_32K_TIMER
/* Setup free-running counter for clocksource */
static int __init omap2_sync32k_clocksource_init(void)
{
@ -299,6 +300,12 @@ static int __init omap2_sync32k_clocksource_init(void)
return ret;
}
#else
static inline int omap2_sync32k_clocksource_init(void)
{
return -ENODEV;
}
#endif
static void __init omap2_gptimer_clocksource_init(int gptimer_id,
const char *fck_source)

4
arch/arm/mach-shmobile/board-kzm9g.c
View file

@ -346,11 +346,11 @@ static struct resource sh_mmcif_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
.start = gic_spi(141),
.start = gic_spi(140),
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = gic_spi(140),
.start = gic_spi(141),
.flags = IORESOURCE_IRQ,
},
};

7
arch/arm/mm/context.c
View file

@ -63,10 +63,11 @@ static int contextidr_notifier(struct notifier_block *unused, unsigned long cmd,
pid = task_pid_nr(thread->task) << ASID_BITS;
asm volatile(
" mrc p15, 0, %0, c13, c0, 1\n"
" bfi %1, %0, #0, %2\n"
" mcr p15, 0, %1, c13, c0, 1\n"
" and %0, %0, %2\n"
" orr %0, %0, %1\n"
" mcr p15, 0, %0, c13, c0, 1\n"
: "=r" (contextidr), "+r" (pid)
: "I" (ASID_BITS));
: "I" (~ASID_MASK));
isb();
return NOTIFY_OK;

2
arch/arm/mm/dma-mapping.c
View file

@ -489,7 +489,7 @@ static bool __in_atomic_pool(void *start, size_t size)
void *pool_start = pool->vaddr;
void *pool_end = pool->vaddr + pool->size;
if (start < pool_start || start > pool_end)
if (start < pool_start || start >= pool_end)
return false;
if (end <= pool_end)

3
arch/arm/mm/mm.h
View file

@ -55,6 +55,9 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
/* permanent static mappings from iotable_init() */
#define VM_ARM_STATIC_MAPPING 0x40000000
/* empty mapping */
#define VM_ARM_EMPTY_MAPPING 0x20000000
/* mapping type (attributes) for permanent static mappings */
#define VM_ARM_MTYPE(mt) ((mt) << 20)
#define VM_ARM_MTYPE_MASK (0x1f << 20)

8
arch/arm/mm/mmu.c
View file

@ -807,7 +807,7 @@ static void __init pmd_empty_section_gap(unsigned long addr)
vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm));
vm->addr = (void *)addr;
vm->size = SECTION_SIZE;
vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING;
vm->flags = VM_IOREMAP | VM_ARM_EMPTY_MAPPING;
vm->caller = pmd_empty_section_gap;
vm_area_add_early(vm);
}
@ -820,7 +820,7 @@ static void __init fill_pmd_gaps(void)
/* we're still single threaded hence no lock needed here */
for (vm = vmlist; vm; vm = vm->next) {
if (!(vm->flags & VM_ARM_STATIC_MAPPING))
if (!(vm->flags & (VM_ARM_STATIC_MAPPING | VM_ARM_EMPTY_MAPPING)))
continue;
addr = (unsigned long)vm->addr;
if (addr < next)
@ -961,8 +961,8 @@ void __init sanity_check_meminfo(void)
* Check whether this memory bank would partially overlap
* the vmalloc area.
*/
if (__va(bank->start + bank->size) > vmalloc_min ||
__va(bank->start + bank->size) < __va(bank->start)) {
if (__va(bank->start + bank->size - 1) >= vmalloc_min ||
__va(bank->start + bank->size - 1) <= __va(bank->start)) {
unsigned long newsize = vmalloc_min - __va(bank->start);
printk(KERN_NOTICE "Truncating RAM at %.8llx-%.8llx "
"to -%.8llx (vmalloc region overlap).\n",

1
arch/arm/plat-mxc/include/mach/mx25.h
View file

@ -98,6 +98,7 @@
#define MX25_INT_UART1 (NR_IRQS_LEGACY + 45)
#define MX25_INT_GPIO2 (NR_IRQS_LEGACY + 51)
#define MX25_INT_GPIO1 (NR_IRQS_LEGACY + 52)
#define MX25_INT_GPT1 (NR_IRQS_LEGACY + 54)
#define MX25_INT_FEC (NR_IRQS_LEGACY + 57)
#define MX25_DMA_REQ_SSI2_RX1 22

11
arch/arm/plat-omap/sram.c
View file

@ -68,6 +68,7 @@
static unsigned long omap_sram_start;
static void __iomem *omap_sram_base;
static unsigned long omap_sram_skip;
static unsigned long omap_sram_size;
static void __iomem *omap_sram_ceil;
@ -106,6 +107,7 @@ static int is_sram_locked(void)
*/
static void __init omap_detect_sram(void)
{
omap_sram_skip = SRAM_BOOTLOADER_SZ;
if (cpu_class_is_omap2()) {
if (is_sram_locked()) {
if (cpu_is_omap34xx()) {
@ -113,6 +115,7 @@ static void __init omap_detect_sram(void)
if ((omap_type() == OMAP2_DEVICE_TYPE_EMU) ||
(omap_type() == OMAP2_DEVICE_TYPE_SEC)) {
omap_sram_size = 0x7000; /* 28K */
omap_sram_skip += SZ_16K;
} else {
omap_sram_size = 0x8000; /* 32K */
}
@ -175,8 +178,10 @@ static void __init omap_map_sram(void)
return;
#ifdef CONFIG_OMAP4_ERRATA_I688
if (cpu_is_omap44xx()) {
omap_sram_start += PAGE_SIZE;
omap_sram_size -= SZ_16K;
}
#endif
if (cpu_is_omap34xx()) {
/*
@ -203,8 +208,8 @@ static void __init omap_map_sram(void)
* Looks like we need to preserve some bootloader code at the
* beginning of SRAM for jumping to flash for reboot to work...
*/
memset_io(omap_sram_base + SRAM_BOOTLOADER_SZ, 0,
omap_sram_size - SRAM_BOOTLOADER_SZ);
memset_io(omap_sram_base + omap_sram_skip, 0,
omap_sram_size - omap_sram_skip);
}
/*
@ -218,7 +223,7 @@ void *omap_sram_push_address(unsigned long size)
{
unsigned long available, new_ceil = (unsigned long)omap_sram_ceil;
available = omap_sram_ceil - (omap_sram_base + SRAM_BOOTLOADER_SZ);
available = omap_sram_ceil - (omap_sram_base + omap_sram_skip);
if (size > available) {
pr_err("Not enough space in SRAM\n");

10
arch/arm/plat-samsung/clock.c
View file

@ -144,6 +144,7 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
int clk_set_rate(struct clk *clk, unsigned long rate)
{
unsigned long flags;
int ret;
if (IS_ERR(clk))
@ -159,9 +160,9 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
if (clk->ops == NULL || clk->ops->set_rate == NULL)
return -EINVAL;
spin_lock(&clocks_lock);
spin_lock_irqsave(&clocks_lock, flags);
ret = (clk->ops->set_rate)(clk, rate);
spin_unlock(&clocks_lock);
spin_unlock_irqrestore(&clocks_lock, flags);
return ret;
}
@ -173,17 +174,18 @@ struct clk *clk_get_parent(struct clk *clk)
int clk_set_parent(struct clk *clk, struct clk *parent)
{
unsigned long flags;
int ret = 0;
if (IS_ERR(clk))
return -EINVAL;
spin_lock(&clocks_lock);
spin_lock_irqsave(&clocks_lock, flags);
if (clk->ops && clk->ops->set_parent)
ret = (clk->ops->set_parent)(clk, parent);
spin_unlock(&clocks_lock);
spin_unlock_irqrestore(&clocks_lock, flags);
return ret;
}

1
arch/blackfin/Kconfig
View file

@ -38,6 +38,7 @@ config BLACKFIN
select GENERIC_ATOMIC64
select GENERIC_IRQ_PROBE
select IRQ_PER_CPU if SMP
select USE_GENERIC_SMP_HELPERS if SMP
select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
select GENERIC_SMP_IDLE_THREAD
select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS

1
arch/blackfin/Makefile
View file

@ -20,7 +20,6 @@ endif
KBUILD_AFLAGS += $(call cc-option,-mno-fdpic)
KBUILD_CFLAGS_MODULE += -mlong-calls
LDFLAGS += -m elf32bfin
KALLSYMS += --symbol-prefix=_
KBUILD_DEFCONFIG := BF537-STAMP_defconfig

2
arch/blackfin/include/asm/smp.h
View file

@ -18,6 +18,8 @@
#define raw_smp_processor_id() blackfin_core_id()
extern void bfin_relocate_coreb_l1_mem(void);
extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
#if defined(CONFIG_SMP) && defined(CONFIG_ICACHE_FLUSH_L1)
asmlinkage void blackfin_icache_flush_range_l1(unsigned long *ptr);

217
arch/blackfin/mach-common/smp.c
View file

@ -48,10 +48,13 @@ unsigned long blackfin_iflush_l1_entry[NR_CPUS];
struct blackfin_initial_pda __cpuinitdata initial_pda_coreb;
#define BFIN_IPI_TIMER 0
#define BFIN_IPI_RESCHEDULE 1
#define BFIN_IPI_CALL_FUNC 2
#define BFIN_IPI_CPU_STOP 3
enum ipi_message_type {
BFIN_IPI_TIMER,
BFIN_IPI_RESCHEDULE,
BFIN_IPI_CALL_FUNC,
BFIN_IPI_CALL_FUNC_SINGLE,
BFIN_IPI_CPU_STOP,
};
struct blackfin_flush_data {
unsigned long start;
@ -60,35 +63,20 @@ struct blackfin_flush_data {
void *secondary_stack;
struct smp_call_struct {
void (*func)(void *info);
void *info;
int wait;
cpumask_t *waitmask;
};
static struct blackfin_flush_data smp_flush_data;
static DEFINE_SPINLOCK(stop_lock);
struct ipi_message {
unsigned long type;
struct smp_call_struct call_struct;
};
/* A magic number - stress test shows this is safe for common cases */
#define BFIN_IPI_MSGQ_LEN 5
/* Simple FIFO buffer, overflow leads to panic */
struct ipi_message_queue {
spinlock_t lock;
struct ipi_data {
unsigned long count;
unsigned long head; /* head of the queue */
struct ipi_message ipi_message[BFIN_IPI_MSGQ_LEN];
unsigned long bits;
};
static DEFINE_PER_CPU(struct ipi_message_queue, ipi_msg_queue);
static DEFINE_PER_CPU(struct ipi_data, bfin_ipi);
static void ipi_cpu_stop(unsigned int cpu)
{
@ -129,28 +117,6 @@ static void ipi_flush_icache(void *info)
blackfin_icache_flush_range(fdata->start, fdata->end);
}
static void ipi_call_function(unsigned int cpu, struct ipi_message *msg)
{
int wait;
void (*func)(void *info);
void *info;
func = msg->call_struct.func;
info = msg->call_struct.info;
wait = msg->call_struct.wait;
func(info);
if (wait) {
#ifdef __ARCH_SYNC_CORE_DCACHE
/*
* 'wait' usually means synchronization between CPUs.
* Invalidate D cache in case shared data was changed
* by func() to ensure cache coherence.
*/
resync_core_dcache();
#endif
cpumask_clear_cpu(cpu, msg->call_struct.waitmask);
}
}
/* Use IRQ_SUPPLE_0 to request reschedule.
* When returning from interrupt to user space,
* there is chance to reschedule */
@ -172,152 +138,95 @@ void ipi_timer(void)
static irqreturn_t ipi_handler_int1(int irq, void *dev_instance)
{
struct ipi_message *msg;
struct ipi_message_queue *msg_queue;
struct ipi_data *bfin_ipi_data;
unsigned int cpu = smp_processor_id();
unsigned long flags;
unsigned long pending;
unsigned long msg;
platform_clear_ipi(cpu, IRQ_SUPPLE_1);
msg_queue = &__get_cpu_var(ipi_msg_queue);
bfin_ipi_data = &__get_cpu_var(bfin_ipi);
spin_lock_irqsave(&msg_queue->lock, flags);
while ((pending = xchg(&bfin_ipi_data->bits, 0)) != 0) {
msg = 0;
do {
msg = find_next_bit(&pending, BITS_PER_LONG, msg + 1);
switch (msg) {
case BFIN_IPI_TIMER:
ipi_timer();
break;
case BFIN_IPI_RESCHEDULE:
scheduler_ipi();
break;
case BFIN_IPI_CALL_FUNC:
generic_smp_call_function_interrupt();
break;
while (msg_queue->count) {
msg = &msg_queue->ipi_message[msg_queue->head];
switch (msg->type) {
case BFIN_IPI_TIMER:
ipi_timer();
break;
case BFIN_IPI_RESCHEDULE:
scheduler_ipi();
break;
case BFIN_IPI_CALL_FUNC:
ipi_call_function(cpu, msg);
break;
case BFIN_IPI_CPU_STOP:
ipi_cpu_stop(cpu);
break;
default:
printk(KERN_CRIT "CPU%u: Unknown IPI message 0x%lx\n",
cpu, msg->type);
break;
}
msg_queue->head++;
msg_queue->head %= BFIN_IPI_MSGQ_LEN;
msg_queue->count--;
case BFIN_IPI_CALL_FUNC_SINGLE:
generic_smp_call_function_single_interrupt();
break;
case BFIN_IPI_CPU_STOP:
ipi_cpu_stop(cpu);
break;
}
} while (msg < BITS_PER_LONG);
smp_mb();
}
spin_unlock_irqrestore(&msg_queue->lock, flags);
return IRQ_HANDLED;
}
static void ipi_queue_init(void)
static void bfin_ipi_init(void)
{
unsigned int cpu;
struct ipi_message_queue *msg_queue;
struct ipi_data *bfin_ipi_data;
for_each_possible_cpu(cpu) {
msg_queue = &per_cpu(ipi_msg_queue, cpu);
spin_lock_init(&msg_queue->lock);
msg_queue->count = 0;
msg_queue->head = 0;
bfin_ipi_data = &per_cpu(bfin_ipi, cpu);
bfin_ipi_data->bits = 0;
bfin_ipi_data->count = 0;
}
}
static inline void smp_send_message(cpumask_t callmap, unsigned long type,
void (*func) (void *info), void *info, int wait)
void send_ipi(const struct cpumask *cpumask, enum ipi_message_type msg)
{
unsigned int cpu;
struct ipi_message_queue *msg_queue;
struct ipi_message *msg;
unsigned long flags, next_msg;
cpumask_t waitmask; /* waitmask is shared by all cpus */
struct ipi_data *bfin_ipi_data;
unsigned long flags;
cpumask_copy(&waitmask, &callmap);
for_each_cpu(cpu, &callmap) {
msg_queue = &per_cpu(ipi_msg_queue, cpu);
spin_lock_irqsave(&msg_queue->lock, flags);
if (msg_queue->count < BFIN_IPI_MSGQ_LEN) {
next_msg = (msg_queue->head + msg_queue->count)
% BFIN_IPI_MSGQ_LEN;
msg = &msg_queue->ipi_message[next_msg];
msg->type = type;
if (type == BFIN_IPI_CALL_FUNC) {
msg->call_struct.func = func;
msg->call_struct.info = info;
msg->call_struct.wait = wait;
msg->call_struct.waitmask = &waitmask;
}
msg_queue->count++;
} else
panic("IPI message queue overflow\n");
spin_unlock_irqrestore(&msg_queue->lock, flags);
local_irq_save(flags);
for_each_cpu(cpu, cpumask) {
bfin_ipi_data = &per_cpu(bfin_ipi, cpu);
smp_mb();
set_bit(msg, &bfin_ipi_data->bits);
bfin_ipi_data->count++;
platform_send_ipi_cpu(cpu, IRQ_SUPPLE_1);
}
if (wait) {
while (!cpumask_empty(&waitmask))
blackfin_dcache_invalidate_range(
(unsigned long)(&waitmask),
(unsigned long)(&waitmask));
#ifdef __ARCH_SYNC_CORE_DCACHE
/*
* Invalidate D cache in case shared data was changed by
* other processors to ensure cache coherence.
*/
resync_core_dcache();
#endif
}
local_irq_restore(flags);
}
int smp_call_function(void (*func)(void *info), void *info, int wait)
void arch_send_call_function_single_ipi(int cpu)
{
cpumask_t callmap;
preempt_disable();
cpumask_copy(&callmap, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &callmap);
if (!cpumask_empty(&callmap))
smp_send_message(callmap, BFIN_IPI_CALL_FUNC, func, info, wait);
preempt_enable();
return 0;
send_ipi(cpumask_of(cpu), BFIN_IPI_CALL_FUNC_SINGLE);
}
EXPORT_SYMBOL_GPL(smp_call_function);
int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
int wait)
void arch_send_call_function_ipi_mask(const struct cpumask *mask)
{
unsigned int cpu = cpuid;
cpumask_t callmap;
if (cpu_is_offline(cpu))
return 0;
cpumask_clear(&callmap);
cpumask_set_cpu(cpu, &callmap);
smp_send_message(callmap, BFIN_IPI_CALL_FUNC, func, info, wait);
return 0;
send_ipi(mask, BFIN_IPI_CALL_FUNC);
}
EXPORT_SYMBOL_GPL(smp_call_function_single);
void smp_send_reschedule(int cpu)
{
cpumask_t callmap;
/* simply trigger an ipi */
cpumask_clear(&callmap);
cpumask_set_cpu(cpu, &callmap);
smp_send_message(callmap, BFIN_IPI_RESCHEDULE, NULL, NULL, 0);
send_ipi(cpumask_of(cpu), BFIN_IPI_RESCHEDULE);
return;
}
void smp_send_msg(const struct cpumask *mask, unsigned long type)
{
smp_send_message(*mask, type, NULL, NULL, 0);
send_ipi(mask, type);
}
void smp_timer_broadcast(const struct cpumask *mask)
@ -333,7 +242,7 @@ void smp_send_stop(void)
cpumask_copy(&callmap, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &callmap);
if (!cpumask_empty(&callmap))
smp_send_message(callmap, BFIN_IPI_CPU_STOP, NULL, NULL, 0);
send_ipi(&callmap, BFIN_IPI_CPU_STOP);
preempt_enable();
@ -436,7 +345,7 @@ void __init smp_prepare_boot_cpu(void)
void __init smp_prepare_cpus(unsigned int max_cpus)
{
platform_prepare_cpus(max_cpus);
ipi_queue_init();
bfin_ipi_init();
platform_request_ipi(IRQ_SUPPLE_0, ipi_handler_int0);
platform_request_ipi(IRQ_SUPPLE_1, ipi_handler_int1);
}

6
arch/m68k/platform/coldfire/clk.c
View file

@ -146,9 +146,3 @@ struct clk_ops clk_ops1 = {
};
#endif /* MCFPM_PPMCR1 */
#endif /* MCFPM_PPMCR0 */
struct clk *devm_clk_get(struct device *dev, const char *id)
{
return NULL;
}
EXPORT_SYMBOL(devm_clk_get);

2
arch/mips/kernel/smp-cmp.c
View file

@ -102,7 +102,7 @@ static void cmp_init_secondary(void)
c->vpe_id = (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE;
#endif
#ifdef CONFIG_MIPS_MT_SMTC
c->tc_id = (read_c0_tcbind() >> TCBIND_CURTC_SHIFT) & TCBIND_CURTC;
c->tc_id = (read_c0_tcbind() & TCBIND_CURTC) >> TCBIND_CURTC_SHIFT;
#endif
}

2
arch/mips/mm/gup.c
View file

@ -152,6 +152,8 @@ static int gup_huge_pud(pud_t pud, unsigned long addr, unsigned long end,
do {
VM_BUG_ON(compound_head(page) != head);
pages[*nr] = page;
if (PageTail(page))
get_huge_page_tail(page);
(*nr)++;
page++;
refs++;

9
arch/mips/mti-malta/malta-int.c
View file

@ -273,16 +273,19 @@ asmlinkage void plat_irq_dispatch(void)
unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
int irq;
if (unlikely(!pending)) {
spurious_interrupt();
return;
}
irq = irq_ffs(pending);
if (irq == MIPSCPU_INT_I8259A)
malta_hw0_irqdispatch();
else if (gic_present && ((1 << irq) & ipi_map[smp_processor_id()]))
malta_ipi_irqdispatch();
else if (irq >= 0)
do_IRQ(MIPS_CPU_IRQ_BASE + irq);
else
spurious_interrupt();
do_IRQ(MIPS_CPU_IRQ_BASE + irq);
}
#ifdef CONFIG_MIPS_MT_SMP

5
arch/mips/mti-malta/malta-platform.c
View file

@ -138,11 +138,6 @@ static int __init malta_add_devices(void)
if (err)
return err;
/*
* Set RTC to BCD mode to support current alarm code.
*/
CMOS_WRITE(CMOS_READ(RTC_CONTROL) & ~RTC_DM_BINARY, RTC_CONTROL);
return 0;
}

24
arch/s390/include/asm/hugetlb.h
View file

@ -66,16 +66,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
return pte;
}
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
pte_t pte = huge_ptep_get(ptep);
mm->context.flush_mm = 1;
pmd_clear((pmd_t *) ptep);
return pte;
}
static inline void __pmd_csp(pmd_t *pmdp)
{
register unsigned long reg2 asm("2") = pmd_val(*pmdp);
@ -117,6 +107,15 @@ static inline void huge_ptep_invalidate(struct mm_struct *mm,
__pmd_csp(pmdp);
}
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
pte_t pte = huge_ptep_get(ptep);
huge_ptep_invalidate(mm, addr, ptep);
return pte;
}
#define huge_ptep_set_access_flags(__vma, __addr, __ptep, __entry, __dirty) \
({ \
int __changed = !pte_same(huge_ptep_get(__ptep), __entry); \
@ -131,10 +130,7 @@ static inline void huge_ptep_invalidate(struct mm_struct *mm,
({ \
pte_t __pte = huge_ptep_get(__ptep); \
if (pte_write(__pte)) { \
(__mm)->context.flush_mm = 1; \
if (atomic_read(&(__mm)->context.attach_count) > 1 || \
(__mm) != current->active_mm) \
huge_ptep_invalidate(__mm, __addr, __ptep); \
huge_ptep_invalidate(__mm, __addr, __ptep); \
set_huge_pte_at(__mm, __addr, __ptep, \
huge_pte_wrprotect(__pte)); \
} \

2
arch/s390/include/asm/tlbflush.h
View file

@ -90,12 +90,10 @@ static inline void __tlb_flush_mm(struct mm_struct * mm)
static inline void __tlb_flush_mm_cond(struct mm_struct * mm)
{
spin_lock(&mm->page_table_lock);
if (mm->context.flush_mm) {
__tlb_flush_mm(mm);
mm->context.flush_mm = 0;
}
spin_unlock(&mm->page_table_lock);
}
/*

2
arch/s390/kernel/setup.c
View file

@ -974,11 +974,13 @@ static void __init setup_hwcaps(void)
if (MACHINE_HAS_HPAGE)
elf_hwcap |= HWCAP_S390_HPAGE;
#if defined(CONFIG_64BIT)
/*
* 64-bit register support for 31-bit processes
* HWCAP_S390_HIGH_GPRS is bit 9.
*/
elf_hwcap |= HWCAP_S390_HIGH_GPRS;
#endif
get_cpu_id(&cpu_id);
switch (cpu_id.machine) {

142
arch/s390/lib/uaccess_pt.c
View file

@ -2,69 +2,82 @@
* User access functions based on page table walks for enhanced
* system layout without hardware support.
*
* Copyright IBM Corp. 2006
* Copyright IBM Corp. 2006, 2012
* Author(s): Gerald Schaefer (gerald.schaefer@de.ibm.com)
*/
#include <linux/errno.h>
#include <linux/hardirq.h>
#include <linux/mm.h>
#include <linux/hugetlb.h>
#include <asm/uaccess.h>
#include <asm/futex.h>
#include "uaccess.h"
static inline pte_t *follow_table(struct mm_struct *mm, unsigned long addr)
/*
* Returns kernel address for user virtual address. If the returned address is
* >= -4095 (IS_ERR_VALUE(x) returns true), a fault has occured and the address
* contains the (negative) exception code.
*/
static __always_inline unsigned long follow_table(struct mm_struct *mm,
unsigned long addr, int write)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *ptep;
pgd = pgd_offset(mm, addr);
if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
return (pte_t *) 0x3a;
return -0x3aUL;
pud = pud_offset(pgd, addr);
if (pud_none(*pud) || unlikely(pud_bad(*pud)))
return (pte_t *) 0x3b;
return -0x3bUL;
pmd = pmd_offset(pud, addr);
if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
return (pte_t *) 0x10;
if (pmd_none(*pmd))
return -0x10UL;
if (pmd_huge(*pmd)) {
if (write && (pmd_val(*pmd) & _SEGMENT_ENTRY_RO))
return -0x04UL;
return (pmd_val(*pmd) & HPAGE_MASK) + (addr & ~HPAGE_MASK);
}
if (unlikely(pmd_bad(*pmd)))
return -0x10UL;
return pte_offset_map(pmd, addr);
ptep = pte_offset_map(pmd, addr);
if (!pte_present(*ptep))
return -0x11UL;
if (write && !pte_write(*ptep))
return -0x04UL;
return (pte_val(*ptep) & PAGE_MASK) + (addr & ~PAGE_MASK);
}
static __always_inline size_t __user_copy_pt(unsigned long uaddr, void *kptr,
size_t n, int write_user)
{
struct mm_struct *mm = current->mm;
unsigned long offset, pfn, done, size;
pte_t *pte;
unsigned long offset, done, size, kaddr;
void *from, *to;
done = 0;
retry:
spin_lock(&mm->page_table_lock);
do {
pte = follow_table(mm, uaddr);
if ((unsigned long) pte < 0x1000)
kaddr = follow_table(mm, uaddr, write_user);
if (IS_ERR_VALUE(kaddr))
goto fault;
if (!pte_present(*pte)) {
pte = (pte_t *) 0x11;
goto fault;
} else if (write_user && !pte_write(*pte)) {
pte = (pte_t *) 0x04;
goto fault;
}
pfn = pte_pfn(*pte);
offset = uaddr & (PAGE_SIZE - 1);
offset = uaddr & ~PAGE_MASK;
size = min(n - done, PAGE_SIZE - offset);
if (write_user) {
to = (void *)((pfn << PAGE_SHIFT) + offset);
to = (void *) kaddr;
from = kptr + done;
} else {
from = (void *)((pfn << PAGE_SHIFT) + offset);
from = (void *) kaddr;
to = kptr + done;
}
memcpy(to, from, size);
@ -75,7 +88,7 @@ static __always_inline size_t __user_copy_pt(unsigned long uaddr, void *kptr,
return n - done;
fault:
spin_unlock(&mm->page_table_lock);
if (__handle_fault(uaddr, (unsigned long) pte, write_user))
if (__handle_fault(uaddr, -kaddr, write_user))
return n - done;
goto retry;
}
@ -84,27 +97,22 @@ static __always_inline size_t __user_copy_pt(unsigned long uaddr, void *kptr,
* Do DAT for user address by page table walk, return kernel address.
* This function needs to be called with current->mm->page_table_lock held.
*/
static __always_inline unsigned long __dat_user_addr(unsigned long uaddr)
static __always_inline unsigned long __dat_user_addr(unsigned long uaddr,
int write)
{
struct mm_struct *mm = current->mm;
unsigned long pfn;
pte_t *pte;
unsigned long kaddr;
int rc;
retry:
pte = follow_table(mm, uaddr);
if ((unsigned long) pte < 0x1000)
kaddr = follow_table(mm, uaddr, write);
if (IS_ERR_VALUE(kaddr))
goto fault;
if (!pte_present(*pte)) {
pte = (pte_t *) 0x11;
goto fault;
}
pfn = pte_pfn(*pte);
return (pfn << PAGE_SHIFT) + (uaddr & (PAGE_SIZE - 1));
return kaddr;
fault:
spin_unlock(&mm->page_table_lock);
rc = __handle_fault(uaddr, (unsigned long) pte, 0);
rc = __handle_fault(uaddr, -kaddr, write);
spin_lock(&mm->page_table_lock);
if (!rc)
goto retry;
@ -159,11 +167,9 @@ static size_t clear_user_pt(size_t n, void __user *to)
static size_t strnlen_user_pt(size_t count, const char __user *src)
{
char *addr;
unsigned long uaddr = (unsigned long) src;
struct mm_struct *mm = current->mm;
unsigned long offset, pfn, done, len;
pte_t *pte;
unsigned long offset, done, len, kaddr;
size_t len_str;
if (segment_eq(get_fs(), KERNEL_DS))
@ -172,19 +178,13 @@ static size_t strnlen_user_pt(size_t count, const char __user *src)
retry:
spin_lock(&mm->page_table_lock);
do {
pte = follow_table(mm, uaddr);
if ((unsigned long) pte < 0x1000)
kaddr = follow_table(mm, uaddr, 0);
if (IS_ERR_VALUE(kaddr))
goto fault;
if (!pte_present(*pte)) {
pte = (pte_t *) 0x11;
goto fault;
}
pfn = pte_pfn(*pte);
offset = uaddr & (PAGE_SIZE-1);
addr = (char *)(pfn << PAGE_SHIFT) + offset;
offset = uaddr & ~PAGE_MASK;
len = min(count - done, PAGE_SIZE - offset);
len_str = strnlen(addr, len);
len_str = strnlen((char *) kaddr, len);
done += len_str;
uaddr += len_str;
} while ((len_str == len) && (done < count));
@ -192,7 +192,7 @@ static size_t strnlen_user_pt(size_t count, const char __user *src)
return done + 1;
fault:
spin_unlock(&mm->page_table_lock);
if (__handle_fault(uaddr, (unsigned long) pte, 0))
if (__handle_fault(uaddr, -kaddr, 0))
return 0;
goto retry;
}
@ -225,11 +225,10 @@ static size_t copy_in_user_pt(size_t n, void __user *to,
const void __user *from)
{
struct mm_struct *mm = current->mm;
unsigned long offset_from, offset_to, offset_max, pfn_from, pfn_to,
uaddr, done, size, error_code;
unsigned long offset_max, uaddr, done, size, error_code;
unsigned long uaddr_from = (unsigned long) from;
unsigned long uaddr_to = (unsigned long) to;
pte_t *pte_from, *pte_to;
unsigned long kaddr_to, kaddr_from;
int write_user;
if (segment_eq(get_fs(), KERNEL_DS)) {
@ -242,38 +241,23 @@ static size_t copy_in_user_pt(size_t n, void __user *to,
do {
write_user = 0;
uaddr = uaddr_from;
pte_from = follow_table(mm, uaddr_from);
error_code = (unsigned long) pte_from;
if (error_code < 0x1000)
kaddr_from = follow_table(mm, uaddr_from, 0);
error_code = kaddr_from;
if (IS_ERR_VALUE(error_code))
goto fault;
if (!pte_present(*pte_from)) {
error_code = 0x11;
goto fault;
}
write_user = 1;
uaddr = uaddr_to;
pte_to = follow_table(mm, uaddr_to);
error_code = (unsigned long) pte_to;
if (error_code < 0x1000)
kaddr_to = follow_table(mm, uaddr_to, 1);
error_code = (unsigned long) kaddr_to;
if (IS_ERR_VALUE(error_code))
goto fault;
if (!pte_present(*pte_to)) {
error_code = 0x11;
goto fault;
} else if (!pte_write(*pte_to)) {
error_code = 0x04;
goto fault;
}
pfn_from = pte_pfn(*pte_from);
pfn_to = pte_pfn(*pte_to);
offset_from = uaddr_from & (PAGE_SIZE-1);
offset_to = uaddr_from & (PAGE_SIZE-1);
offset_max = max(offset_from, offset_to);
offset_max = max(uaddr_from & ~PAGE_MASK,
uaddr_to & ~PAGE_MASK);
size = min(n - done, PAGE_SIZE - offset_max);
memcpy((void *)(pfn_to << PAGE_SHIFT) + offset_to,
(void *)(pfn_from << PAGE_SHIFT) + offset_from, size);
memcpy((void *) kaddr_to, (void *) kaddr_from, size);
done += size;
uaddr_from += size;
uaddr_to += size;
@ -282,7 +266,7 @@ static size_t copy_in_user_pt(size_t n, void __user *to,
return n - done;
fault:
spin_unlock(&mm->page_table_lock);
if (__handle_fault(uaddr, error_code, write_user))
if (__handle_fault(uaddr, -error_code, write_user))
return n - done;
goto retry;
}
@ -341,7 +325,7 @@ int futex_atomic_op_pt(int op, u32 __user *uaddr, int oparg, int *old)
return __futex_atomic_op_pt(op, uaddr, oparg, old);
spin_lock(&current->mm->page_table_lock);
uaddr = (u32 __force __user *)
__dat_user_addr((__force unsigned long) uaddr);
__dat_user_addr((__force unsigned long) uaddr, 1);
if (!uaddr) {
spin_unlock(&current->mm->page_table_lock);
return -EFAULT;
@ -378,7 +362,7 @@ int futex_atomic_cmpxchg_pt(u32 *uval, u32 __user *uaddr,
return __futex_atomic_cmpxchg_pt(uval, uaddr, oldval, newval);
spin_lock(&current->mm->page_table_lock);
uaddr = (u32 __force __user *)
__dat_user_addr((__force unsigned long) uaddr);
__dat_user_addr((__force unsigned long) uaddr, 1);
if (!uaddr) {
spin_unlock(&current->mm->page_table_lock);
return -EFAULT;

10
arch/s390/oprofile/init.c
View file

@ -169,7 +169,7 @@ static ssize_t hw_interval_write(struct file *file, char const __user *buf,
if (*offset)
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val < oprofile_min_interval)
oprofile_hw_interval = oprofile_min_interval;
@ -212,7 +212,7 @@ static ssize_t hwsampler_zero_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0)
return -EINVAL;
@ -243,7 +243,7 @@ static ssize_t hwsampler_kernel_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0 && val != 1)
@ -278,7 +278,7 @@ static ssize_t hwsampler_user_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0 && val != 1)
@ -317,7 +317,7 @@ static ssize_t timer_enabled_write(struct file *file, char const __user *buf,
return -EINVAL;
retval = oprofilefs_ulong_from_user(&val, buf, count);
if (retval)
if (retval <= 0)
return retval;
if (val != 0 && val != 1)

2
arch/sh/kernel/cpu/sh5/entry.S
View file

@ -933,7 +933,7 @@ ret_with_reschedule:
pta restore_all, tr1
movi _TIF_SIGPENDING, r8
movi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), r8
and r8, r7, r8
pta work_notifysig, tr0
bne r8, ZERO, tr0

2
arch/sh/kernel/entry-common.S
View file

@ -139,7 +139,7 @@ work_pending:
! r8: current_thread_info
! t: result of "tst #_TIF_NEED_RESCHED, r0"
bf/s work_resched
tst #_TIF_SIGPENDING, r0
tst #(_TIF_SIGPENDING | _TIF_NOTIFY_RESUME), r0
work_notifysig:
bt/s __restore_all
mov r15, r4

13
arch/sparc/kernel/module.c
View file

@ -48,9 +48,7 @@ void *module_alloc(unsigned long size)
return NULL;
ret = module_map(size);
if (!ret)
ret = ERR_PTR(-ENOMEM);
else
if (ret)
memset(ret, 0, size);
return ret;
@ -116,6 +114,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
v = sym->st_value + rel[i].r_addend;
switch (ELF_R_TYPE(rel[i].r_info) & 0xff) {
case R_SPARC_DISP32:
v -= (Elf_Addr) location;
*loc32 = v;
break;
#ifdef CONFIG_SPARC64
case R_SPARC_64:
location[0] = v >> 56;
@ -128,11 +130,6 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
location[7] = v >> 0;
break;
case R_SPARC_DISP32:
v -= (Elf_Addr) location;
*loc32 = v;
break;
case R_SPARC_WDISP19:
v -= (Elf_Addr) location;
*loc32 = (*loc32 & ~0x7ffff) |

8
arch/x86/Kconfig
View file

@ -746,10 +746,10 @@ config SWIOTLB
def_bool y if X86_64
---help---
Support for software bounce buffers used on x86-64 systems
which don't have a hardware IOMMU (e.g. the current generation
of Intel's x86-64 CPUs). Using this PCI devices which can only
access 32-bits of memory can be used on systems with more than
3 GB of memory. If unsure, say Y.
which don't have a hardware IOMMU. Using this PCI devices
which can only access 32-bits of memory can be used on systems
with more than 3 GB of memory.
If unsure, say Y.
config IOMMU_HELPER
def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)

2
arch/x86/Makefile
View file

@ -142,7 +142,7 @@ KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
KBUILD_CFLAGS += $(mflags-y)
KBUILD_AFLAGS += $(mflags-y)
archscripts:
archscripts: scripts_basic
$(Q)$(MAKE) $(build)=arch/x86/tools relocs
###

3
arch/x86/include/asm/xen/page.h
View file

@ -51,7 +51,8 @@ extern unsigned long set_phys_range_identity(unsigned long pfn_s,
extern int m2p_add_override(unsigned long mfn, struct page *page,
struct gnttab_map_grant_ref *kmap_op);
extern int m2p_remove_override(struct page *page, bool clear_pte);
extern int m2p_remove_override(struct page *page,
struct gnttab_map_grant_ref *kmap_op);
extern struct page *m2p_find_override(unsigned long mfn);
extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn);

2
arch/x86/kernel/cpu/perf_event.h
View file

@ -586,6 +586,8 @@ extern struct event_constraint intel_westmere_pebs_event_constraints[];
extern struct event_constraint intel_snb_pebs_event_constraints[];
extern struct event_constraint intel_ivb_pebs_event_constraints[];
struct event_constraint *intel_pebs_constraints(struct perf_event *event);
void intel_pmu_pebs_enable(struct perf_event *event);

12
arch/x86/kernel/cpu/perf_event_amd_ibs.c
View file

@ -209,6 +209,15 @@ static int perf_ibs_precise_event(struct perf_event *event, u64 *config)
return -EOPNOTSUPP;
}
static const struct perf_event_attr ibs_notsupp = {
.exclude_user = 1,
.exclude_kernel = 1,
.exclude_hv = 1,
.exclude_idle = 1,
.exclude_host = 1,
.exclude_guest = 1,
};
static int perf_ibs_init(struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;
@ -229,6 +238,9 @@ static int perf_ibs_init(struct perf_event *event)
if (event->pmu != &perf_ibs->pmu)
return -ENOENT;
if (perf_flags(&event->attr) & perf_flags(&ibs_notsupp))
return -EINVAL;
if (config & ~perf_ibs->config_mask)
return -EINVAL;

25
arch/x86/kernel/cpu/perf_event_intel.c
View file

@ -2008,6 +2008,7 @@ __init int intel_pmu_init(void)
break;
case 28: /* Atom */
case 54: /* Cedariew */
memcpy(hw_cache_event_ids, atom_hw_cache_event_ids,
sizeof(hw_cache_event_ids));
@ -2047,7 +2048,6 @@ __init int intel_pmu_init(void)
case 42: /* SandyBridge */
case 45: /* SandyBridge, "Romely-EP" */
x86_add_quirk(intel_sandybridge_quirk);
case 58: /* IvyBridge */
memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
sizeof(hw_cache_event_ids));
memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs,
@ -2072,6 +2072,29 @@ __init int intel_pmu_init(void)
pr_cont("SandyBridge events, ");
break;
case 58: /* IvyBridge */
memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
sizeof(hw_cache_event_ids));
memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs,
sizeof(hw_cache_extra_regs));
intel_pmu_lbr_init_snb();
x86_pmu.event_constraints = intel_snb_event_constraints;
x86_pmu.pebs_constraints = intel_ivb_pebs_event_constraints;
x86_pmu.pebs_aliases = intel_pebs_aliases_snb;
x86_pmu.extra_regs = intel_snb_extra_regs;
/* all extra regs are per-cpu when HT is on */
x86_pmu.er_flags |= ERF_HAS_RSP_1;
x86_pmu.er_flags |= ERF_NO_HT_SHARING;
/* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */
intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1);
pr_cont("IvyBridge events, ");
break;
default:
switch (x86_pmu.version) {

14
arch/x86/kernel/cpu/perf_event_intel_ds.c
View file

@ -407,6 +407,20 @@ struct event_constraint intel_snb_pebs_event_constraints[] = {
EVENT_CONSTRAINT_END
};
struct event_constraint intel_ivb_pebs_event_constraints[] = {
INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
INTEL_UEVENT_CONSTRAINT(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */
INTEL_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
INTEL_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */
INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.* */
INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */
INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
INTEL_EVENT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */
EVENT_CONSTRAINT_END
};
struct event_constraint *intel_pebs_constraints(struct perf_event *event)
{
struct event_constraint *c;

3
arch/x86/kernel/cpu/perf_event_intel_lbr.c
View file

@ -686,7 +686,8 @@ void intel_pmu_lbr_init_atom(void)
* to have an operational LBR which can freeze
* on PMU interrupt
*/
if (boot_cpu_data.x86_mask < 10) {
if (boot_cpu_data.x86_model == 28
&& boot_cpu_data.x86_mask < 10) {
pr_cont("LBR disabled due to erratum");
return;
}

6
arch/x86/kernel/cpu/perf_event_intel_uncore.c
View file

@ -661,6 +661,11 @@ static void snb_uncore_msr_init_box(struct intel_uncore_box *box)
}
}
static struct uncore_event_desc snb_uncore_events[] = {
INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
{ /* end: all zeroes */ },
};
static struct attribute *snb_uncore_formats_attr[] = {
&format_attr_event.attr,
&format_attr_umask.attr,
@ -704,6 +709,7 @@ static struct intel_uncore_type snb_uncore_cbox = {
.constraints = snb_uncore_cbox_constraints,
.ops = &snb_uncore_msr_ops,
.format_group = &snb_uncore_format_group,
.event_descs = snb_uncore_events,
};
static struct intel_uncore_type *snb_msr_uncores[] = {

3
arch/x86/kernel/microcode_core.c
View file

@ -225,6 +225,9 @@ static ssize_t microcode_write(struct file *file, const char __user *buf,
if (do_microcode_update(buf, len) == 0)
ret = (ssize_t)len;
if (ret > 0)
perf_check_microcode();
mutex_unlock(&microcode_mutex);
put_online_cpus();

2
arch/x86/kvm/i8259.c
View file

@ -318,7 +318,7 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val)
if (val & 0x10) {
u8 edge_irr = s->irr & ~s->elcr;
int i;
bool found;
bool found = false;
struct kvm_vcpu *vcpu;
s->init4 = val & 1;

23
arch/x86/kvm/vmx.c
View file

@ -3619,6 +3619,7 @@ static void seg_setup(int seg)
static int alloc_apic_access_page(struct kvm *kvm)
{
struct page *page;
struct kvm_userspace_memory_region kvm_userspace_mem;
int r = 0;
@ -3633,7 +3634,13 @@ static int alloc_apic_access_page(struct kvm *kvm)
if (r)
goto out;
kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00);
page = gfn_to_page(kvm, 0xfee00);
if (is_error_page(page)) {
r = -EFAULT;
goto out;
}
kvm->arch.apic_access_page = page;
out:
mutex_unlock(&kvm->slots_lock);
return r;
@ -3641,6 +3648,7 @@ static int alloc_apic_access_page(struct kvm *kvm)
static int alloc_identity_pagetable(struct kvm *kvm)
{
struct page *page;
struct kvm_userspace_memory_region kvm_userspace_mem;
int r = 0;
@ -3656,8 +3664,13 @@ static int alloc_identity_pagetable(struct kvm *kvm)
if (r)
goto out;
kvm->arch.ept_identity_pagetable = gfn_to_page(kvm,
kvm->arch.ept_identity_map_addr >> PAGE_SHIFT);
page = gfn_to_page(kvm, kvm->arch.ept_identity_map_addr >> PAGE_SHIFT);
if (is_error_page(page)) {
r = -EFAULT;
goto out;
}
kvm->arch.ept_identity_pagetable = page;
out:
mutex_unlock(&kvm->slots_lock);
return r;
@ -6575,7 +6588,7 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
/* Exposing INVPCID only when PCID is exposed */
best = kvm_find_cpuid_entry(vcpu, 0x7, 0);
if (vmx_invpcid_supported() &&
best && (best->ecx & bit(X86_FEATURE_INVPCID)) &&
best && (best->ebx & bit(X86_FEATURE_INVPCID)) &&
guest_cpuid_has_pcid(vcpu)) {
exec_control |= SECONDARY_EXEC_ENABLE_INVPCID;
vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
@ -6585,7 +6598,7 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
vmcs_write32(SECONDARY_VM_EXEC_CONTROL,
exec_control);
if (best)
best->ecx &= ~bit(X86_FEATURE_INVPCID);
best->ebx &= ~bit(X86_FEATURE_INVPCID);
}
}

13
arch/x86/kvm/x86.c
View file

@ -5113,17 +5113,20 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu)
!kvm_event_needs_reinjection(vcpu);
}
static void vapic_enter(struct kvm_vcpu *vcpu)
static int vapic_enter(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *apic = vcpu->arch.apic;
struct page *page;
if (!apic || !apic->vapic_addr)
return;
return 0;
page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT);
if (is_error_page(page))
return -EFAULT;
vcpu->arch.apic->vapic_page = page;
return 0;
}
static void vapic_exit(struct kvm_vcpu *vcpu)
@ -5430,7 +5433,11 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
}
vcpu->srcu_idx = srcu_read_lock(&kvm->srcu);
vapic_enter(vcpu);
r = vapic_enter(vcpu);
if (r) {
srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx);
return r;
}
r = 1;
while (r > 0) {

2
arch/x86/mm/init.c
View file

@ -319,7 +319,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
*/
int devmem_is_allowed(unsigned long pagenr)
{
if (pagenr <= 256)
if (pagenr < 256)
return 1;
if (iomem_is_exclusive(pagenr << PAGE_SHIFT))
return 0;

4
arch/x86/xen/enlighten.c
View file

@ -1452,6 +1452,10 @@ asmlinkage void __init xen_start_kernel(void)
pci_request_acs();
xen_acpi_sleep_register();
/* Avoid searching for BIOS MP tables */
x86_init.mpparse.find_smp_config = x86_init_noop;
x86_init.mpparse.get_smp_config = x86_init_uint_noop;
}
#ifdef CONFIG_PCI
/* PCI BIOS service won't work from a PV guest. */

27
arch/x86/xen/p2m.c
View file

@ -828,9 +828,6 @@ int m2p_add_override(unsigned long mfn, struct page *page,
xen_mc_issue(PARAVIRT_LAZY_MMU);
}
/* let's use dev_bus_addr to record the old mfn instead */
kmap_op->dev_bus_addr = page->index;
page->index = (unsigned long) kmap_op;
}
spin_lock_irqsave(&m2p_override_lock, flags);
list_add(&page->lru, &m2p_overrides[mfn_hash(mfn)]);
@ -857,7 +854,8 @@ int m2p_add_override(unsigned long mfn, struct page *page,
return 0;
}
EXPORT_SYMBOL_GPL(m2p_add_override);
int m2p_remove_override(struct page *page, bool clear_pte)
int m2p_remove_override(struct page *page,
struct gnttab_map_grant_ref *kmap_op)
{
unsigned long flags;
unsigned long mfn;
@ -887,10 +885,8 @@ int m2p_remove_override(struct page *page, bool clear_pte)
WARN_ON(!PagePrivate(page));
ClearPagePrivate(page);
if (clear_pte) {
struct gnttab_map_grant_ref *map_op =
(struct gnttab_map_grant_ref *) page->index;
set_phys_to_machine(pfn, map_op->dev_bus_addr);
set_phys_to_machine(pfn, page->index);
if (kmap_op != NULL) {
if (!PageHighMem(page)) {
struct multicall_space mcs;
struct gnttab_unmap_grant_ref *unmap_op;
@ -902,13 +898,13 @@ int m2p_remove_override(struct page *page, bool clear_pte)
* issued. In this case handle is going to -1 because
* it hasn't been modified yet.
*/
if (map_op->handle == -1)
if (kmap_op->handle == -1)
xen_mc_flush();
/*
* Now if map_op->handle is negative it means that the
* Now if kmap_op->handle is negative it means that the
* hypercall actually returned an error.
*/
if (map_op->handle == GNTST_general_error) {
if (kmap_op->handle == GNTST_general_error) {
printk(KERN_WARNING "m2p_remove_override: "
"pfn %lx mfn %lx, failed to modify kernel mappings",
pfn, mfn);
@ -918,8 +914,8 @@ int m2p_remove_override(struct page *page, bool clear_pte)
mcs = xen_mc_entry(
sizeof(struct gnttab_unmap_grant_ref));
unmap_op = mcs.args;
unmap_op->host_addr = map_op->host_addr;
unmap_op->handle = map_op->handle;
unmap_op->host_addr = kmap_op->host_addr;
unmap_op->handle = kmap_op->handle;
unmap_op->dev_bus_addr = 0;
MULTI_grant_table_op(mcs.mc,
@ -930,10 +926,9 @@ int m2p_remove_override(struct page *page, bool clear_pte)
set_pte_at(&init_mm, address, ptep,
pfn_pte(pfn, PAGE_KERNEL));
__flush_tlb_single(address);
map_op->host_addr = 0;
kmap_op->host_addr = 0;
}
} else
set_phys_to_machine(pfn, page->index);
}
/* p2m(m2p(mfn)) == FOREIGN_FRAME(mfn): the mfn is already present
* somewhere in this domain, even before being added to the

8
block/blk-core.c
View file

@ -2254,9 +2254,11 @@ bool blk_update_request(struct request *req, int error, unsigned int nr_bytes)
error_type = "I/O";
break;
}
printk(KERN_ERR "end_request: %s error, dev %s, sector %llu\n",
error_type, req->rq_disk ? req->rq_disk->disk_name : "?",
(unsigned long long)blk_rq_pos(req));
printk_ratelimited(KERN_ERR "end_request: %s error, dev %s, sector %llu\n",
error_type, req->rq_disk ?
req->rq_disk->disk_name : "?",
(unsigned long long)blk_rq_pos(req));
}
blk_account_io_completion(req, nr_bytes);

2
block/ioctl.c
View file

@ -41,7 +41,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
sizeof(long long) > sizeof(long)) {
long pstart = start, plength = length;
if (pstart != start || plength != length
|| pstart < 0 || plength < 0)
|| pstart < 0 || plength < 0 || partno > 65535)
return -EINVAL;
}

4
crypto/authenc.c
View file

@ -336,7 +336,7 @@ static int crypto_authenc_genicv(struct aead_request *req, u8 *iv,
cryptlen += ivsize;
}
if (sg_is_last(assoc)) {
if (req->assoclen && sg_is_last(assoc)) {
authenc_ahash_fn = crypto_authenc_ahash;
sg_init_table(asg, 2);
sg_set_page(asg, sg_page(assoc), assoc->length, assoc->offset);
@ -490,7 +490,7 @@ static int crypto_authenc_iverify(struct aead_request *req, u8 *iv,
cryptlen += ivsize;
}
if (sg_is_last(assoc)) {
if (req->assoclen && sg_is_last(assoc)) {
authenc_ahash_fn = crypto_authenc_ahash;
sg_init_table(asg, 2);
sg_set_page(asg, sg_page(assoc), assoc->length, assoc->offset);

10
drivers/acpi/bus.c
View file

@ -237,6 +237,16 @@ static int __acpi_bus_get_power(struct acpi_device *device, int *state)
} else if (result == ACPI_STATE_D3_HOT) {
result = ACPI_STATE_D3;
}
/*
* If we were unsure about the device parent's power state up to this
* point, the fact that the device is in D0 implies that the parent has
* to be in D0 too.
*/
if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN
&& result == ACPI_STATE_D0)
device->parent->power.state = ACPI_STATE_D0;
*state = result;
out:

36
drivers/acpi/power.c
View file

@ -107,6 +107,7 @@ struct acpi_power_resource {
/* List of devices relying on this power resource */
struct acpi_power_resource_device *devices;
struct mutex devices_lock;
};
static struct list_head acpi_power_resource_list;
@ -225,7 +226,6 @@ static void acpi_power_on_device(struct acpi_power_managed_device *device)
static int __acpi_power_on(struct acpi_power_resource *resource)
{
struct acpi_power_resource_device *device_list = resource->devices;
acpi_status status = AE_OK;
status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL);
@ -238,19 +238,15 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n",
resource->name));
while (device_list) {
acpi_power_on_device(device_list->device);
device_list = device_list->next;
}
return 0;
}
static int acpi_power_on(acpi_handle handle)
{
int result = 0;
bool resume_device = false;
struct acpi_power_resource *resource = NULL;
struct acpi_power_resource_device *device_list;
result = acpi_power_get_context(handle, &resource);
if (result)
@ -266,10 +262,25 @@ static int acpi_power_on(acpi_handle handle)
result = __acpi_power_on(resource);
if (result)
resource->ref_count--;
else
resume_device = true;
}
mutex_unlock(&resource->resource_lock);
if (!resume_device)
return result;
mutex_lock(&resource->devices_lock);
device_list = resource->devices;
while (device_list) {
acpi_power_on_device(device_list->device);
device_list = device_list->next;
}
mutex_unlock(&resource->devices_lock);
return result;
}
@ -355,7 +366,7 @@ static void __acpi_power_resource_unregister_device(struct device *dev,
if (acpi_power_get_context(res_handle, &resource))
return;
mutex_lock(&resource->resource_lock);
mutex_lock(&resource->devices_lock);
prev = NULL;
curr = resource->devices;
while (curr) {
@ -372,7 +383,7 @@ static void __acpi_power_resource_unregister_device(struct device *dev,
prev = curr;
curr = curr->next;
}
mutex_unlock(&resource->resource_lock);
mutex_unlock(&resource->devices_lock);
}
/* Unlink dev from all power resources in _PR0 */
@ -414,10 +425,10 @@ static int __acpi_power_resource_register_device(
power_resource_device->device = powered_device;
mutex_lock(&resource->resource_lock);
mutex_lock(&resource->devices_lock);
power_resource_device->next = resource->devices;
resource->devices = power_resource_device;
mutex_unlock(&resource->resource_lock);
mutex_unlock(&resource->devices_lock);
return 0;
}
@ -462,7 +473,7 @@ int acpi_power_resource_register_device(struct device *dev, acpi_handle handle)
return ret;
no_power_resource:
printk(KERN_WARNING PREFIX "Invalid Power Resource to register!");
printk(KERN_DEBUG PREFIX "Invalid Power Resource to register!");
return -ENODEV;
}
EXPORT_SYMBOL_GPL(acpi_power_resource_register_device);
@ -721,6 +732,7 @@ static int acpi_power_add(struct acpi_device *device)
resource->device = device;
mutex_init(&resource->resource_lock);
mutex_init(&resource->devices_lock);
strcpy(resource->name, device->pnp.bus_id);
strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_POWER_CLASS);

10
drivers/ata/ahci.c
View file

@ -268,6 +268,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
/* JMicron 360/1/3/5/6, match class to avoid IDE function */
{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr },
/* JMicron 362B and 362C have an AHCI function with IDE class code */
{ PCI_VDEVICE(JMICRON, 0x2362), board_ahci_ign_iferr },
{ PCI_VDEVICE(JMICRON, 0x236f), board_ahci_ign_iferr },
/* ATI */
{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
@ -393,6 +396,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
.driver_data = board_ahci_yes_fbs }, /* 88se9125 */
{ PCI_DEVICE(0x1b4b, 0x917a),
.driver_data = board_ahci_yes_fbs }, /* 88se9172 */
{ PCI_DEVICE(0x1b4b, 0x9192),
.driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */
{ PCI_DEVICE(0x1b4b, 0x91a3),
.driver_data = board_ahci_yes_fbs },
@ -400,7 +405,10 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
/* Asmedia */
{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1061 */
{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */
{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci }, /* ASM1060 */
{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci }, /* ASM1061 */
{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci }, /* ASM1062 */
/* Generic, PCI class code for AHCI */
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,

1
drivers/block/aoe/aoecmd.c
View file

@ -35,6 +35,7 @@ new_skb(ulong len)
skb_reset_mac_header(skb);
skb_reset_network_header(skb);
skb->protocol = __constant_htons(ETH_P_AOE);
skb_checksum_none_assert(skb);
}
return skb;
}

1
drivers/block/cciss_scsi.c
View file

@ -795,6 +795,7 @@ static void complete_scsi_command(CommandList_struct *c, int timeout,
}
break;
case CMD_PROTOCOL_ERR:
cmd->result = DID_ERROR << 16;
dev_warn(&h->pdev->dev,
"%p has protocol error\n", c);
break;

38
drivers/block/mtip32xx/mtip32xx.c
View file

@ -1148,11 +1148,15 @@ static bool mtip_pause_ncq(struct mtip_port *port,
reply = port->rxfis + RX_FIS_D2H_REG;
task_file_data = readl(port->mmio+PORT_TFDATA);
if ((task_file_data & 1) || (fis->command == ATA_CMD_SEC_ERASE_UNIT))
if (fis->command == ATA_CMD_SEC_ERASE_UNIT)
clear_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
if ((task_file_data & 1))
return false;
if (fis->command == ATA_CMD_SEC_ERASE_PREP) {
set_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags);
set_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
port->ic_pause_timer = jiffies;
return true;
} else if ((fis->command == ATA_CMD_DOWNLOAD_MICRO) &&
@ -1900,7 +1904,7 @@ static int exec_drive_command(struct mtip_port *port, u8 *command,
int rv = 0, xfer_sz = command[3];
if (xfer_sz) {
if (user_buffer)
if (!user_buffer)
return -EFAULT;
buf = dmam_alloc_coherent(&port->dd->pdev->dev,
@ -2043,7 +2047,7 @@ static void mtip_set_timeout(struct host_to_dev_fis *fis, unsigned int *timeout)
*timeout = 240000; /* 4 minutes */
break;
case ATA_CMD_STANDBYNOW1:
*timeout = 10000; /* 10 seconds */
*timeout = 120000; /* 2 minutes */
break;
case 0xF7:
case 0xFA:
@ -2588,9 +2592,6 @@ static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
if (!len || size)
return 0;
if (size < 0)
return -EINVAL;
size += sprintf(&buf[size], "H/ S ACTive : [ 0x");
for (n = dd->slot_groups-1; n >= 0; n--)
@ -2660,9 +2661,6 @@ static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
if (!len || size)
return 0;
if (size < 0)
return -EINVAL;
size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n",
dd->port->flags);
size += sprintf(&buf[size], "Flag-dd : [ %08lX ]\n",
@ -3214,8 +3212,8 @@ static int mtip_hw_init(struct driver_data *dd)
"Unable to check write protect progress\n");
else
dev_info(&dd->pdev->dev,
"Write protect progress: %d%% (%d blocks)\n",
attr242.cur, attr242.data);
"Write protect progress: %u%% (%u blocks)\n",
attr242.cur, le32_to_cpu(attr242.data));
return rv;
out3:
@ -3619,6 +3617,10 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
bio_endio(bio, -ENODATA);
return;
}
if (unlikely(test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag))) {
bio_endio(bio, -ENODATA);
return;
}
}
if (unlikely(!bio_has_data(bio))) {
@ -4168,7 +4170,13 @@ static void mtip_pci_shutdown(struct pci_dev *pdev)
/* Table of device ids supported by this driver. */
static DEFINE_PCI_DEVICE_TABLE(mtip_pci_tbl) = {
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320_DEVICE_ID) },
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320H_DEVICE_ID) },
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320M_DEVICE_ID) },
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320S_DEVICE_ID) },
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P325M_DEVICE_ID) },
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P420H_DEVICE_ID) },
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P420M_DEVICE_ID) },
{ PCI_DEVICE(PCI_VENDOR_ID_MICRON, P425M_DEVICE_ID) },
{ 0 }
};
@ -4199,12 +4207,12 @@ static int __init mtip_init(void)
{
int error;
printk(KERN_INFO MTIP_DRV_NAME " Version " MTIP_DRV_VERSION "\n");
pr_info(MTIP_DRV_NAME " Version " MTIP_DRV_VERSION "\n");
/* Allocate a major block device number to use with this driver. */
error = register_blkdev(0, MTIP_DRV_NAME);
if (error <= 0) {
printk(KERN_ERR "Unable to register block device (%d)\n",
pr_err("Unable to register block device (%d)\n",
error);
return -EBUSY;
}
@ -4213,7 +4221,7 @@ static int __init mtip_init(void)
if (!dfs_parent) {
dfs_parent = debugfs_create_dir("rssd", NULL);
if (IS_ERR_OR_NULL(dfs_parent)) {
printk(KERN_WARNING "Error creating debugfs parent\n");
pr_warn("Error creating debugfs parent\n");
dfs_parent = NULL;
}
}

10
drivers/block/mtip32xx/mtip32xx.h
View file

@ -76,7 +76,13 @@
/* Micron Vendor ID & P320x SSD Device ID */
#define PCI_VENDOR_ID_MICRON 0x1344
#define P320_DEVICE_ID 0x5150
#define P320H_DEVICE_ID 0x5150
#define P320M_DEVICE_ID 0x5151
#define P320S_DEVICE_ID 0x5152
#define P325M_DEVICE_ID 0x5153
#define P420H_DEVICE_ID 0x5160
#define P420M_DEVICE_ID 0x5161
#define P425M_DEVICE_ID 0x5163
/* Driver name and version strings */
#define MTIP_DRV_NAME "mtip32xx"
@ -131,10 +137,12 @@ enum {
MTIP_PF_SVC_THD_STOP_BIT = 8,
/* below are bit numbers in 'dd_flag' defined in driver_data */
MTIP_DDF_SEC_LOCK_BIT = 0,
MTIP_DDF_REMOVE_PENDING_BIT = 1,
MTIP_DDF_OVER_TEMP_BIT = 2,
MTIP_DDF_WRITE_PROTECT_BIT = 3,
MTIP_DDF_STOP_IO = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) | \
(1 << MTIP_DDF_SEC_LOCK_BIT) | \
(1 << MTIP_DDF_OVER_TEMP_BIT) | \
(1 << MTIP_DDF_WRITE_PROTECT_BIT)),

9
drivers/block/nbd.c
View file

@ -449,6 +449,14 @@ static void nbd_clear_que(struct nbd_device *nbd)
req->errors++;
nbd_end_request(req);
}
while (!list_empty(&nbd->waiting_queue)) {
req = list_entry(nbd->waiting_queue.next, struct request,
queuelist);
list_del_init(&req->queuelist);
req->errors++;
nbd_end_request(req);
}
}
@ -598,6 +606,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
nbd->file = NULL;
nbd_clear_que(nbd);
BUG_ON(!list_empty(&nbd->queue_head));
BUG_ON(!list_empty(&nbd->waiting_queue));
if (file)
fput(file);
return 0;

2
drivers/block/xen-blkback/blkback.c
View file

@ -337,7 +337,7 @@ static void xen_blkbk_unmap(struct pending_req *req)
invcount++;
}
ret = gnttab_unmap_refs(unmap, pages, invcount, false);
ret = gnttab_unmap_refs(unmap, NULL, pages, invcount);
BUG_ON(ret);
}

2
drivers/bluetooth/ath3k.c
View file

@ -86,6 +86,7 @@ static struct usb_device_id ath3k_table[] = {
/* Atheros AR5BBU22 with sflash firmware */
{ USB_DEVICE(0x0489, 0xE03C) },
{ USB_DEVICE(0x0489, 0xE036) },
{ } /* Terminating entry */
};
@ -109,6 +110,7 @@ static struct usb_device_id ath3k_blist_tbl[] = {
/* Atheros AR5BBU22 with sflash firmware */
{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
{ } /* Terminating entry */
};

12
drivers/bluetooth/btusb.c
View file

@ -52,6 +52,9 @@ static struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
/* Apple-specific (Broadcom) devices */
{ USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
/* Broadcom SoftSailing reporting vendor specific */
{ USB_DEVICE(0x0a5c, 0x21e1) },
@ -94,16 +97,14 @@ static struct usb_device_id btusb_table[] = {
/* Broadcom BCM20702A0 */
{ USB_DEVICE(0x0489, 0xe042) },
{ USB_DEVICE(0x0a5c, 0x21e3) },
{ USB_DEVICE(0x0a5c, 0x21e6) },
{ USB_DEVICE(0x0a5c, 0x21e8) },
{ USB_DEVICE(0x0a5c, 0x21f3) },
{ USB_DEVICE(0x0a5c, 0x21f4) },
{ USB_DEVICE(0x413c, 0x8197) },
/* Foxconn - Hon Hai */
{ USB_DEVICE(0x0489, 0xe033) },
/*Broadcom devices with vendor specific id */
{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
{ } /* Terminating entry */
};
@ -141,6 +142,7 @@ static struct usb_device_id blacklist_table[] = {
/* Atheros AR5BBU12 with sflash firmware */
{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
/* Broadcom BCM2035 */
{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },

1
drivers/clk/Makefile
View file

@ -1,4 +1,5 @@
# common clock types
obj-$(CONFIG_HAVE_CLK) += clk-devres.o
obj-$(CONFIG_CLKDEV_LOOKUP) += clkdev.o
obj-$(CONFIG_COMMON_CLK) += clk.o clk-fixed-rate.o clk-gate.o \
clk-mux.o clk-divider.o clk-fixed-factor.o

55
drivers/clk/clk-devres.c Normal file
View file

@ -0,0 +1,55 @@
/*
* 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/clk.h>
#include <linux/device.h>
#include <linux/export.h>
#include <linux/gfp.h>
static void devm_clk_release(struct device *dev, void *res)
{
clk_put(*(struct clk **)res);
}
struct clk *devm_clk_get(struct device *dev, const char *id)
{
struct clk **ptr, *clk;
ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);
clk = clk_get(dev, id);
if (!IS_ERR(clk)) {
*ptr = clk;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return clk;
}
EXPORT_SYMBOL(devm_clk_get);
static int devm_clk_match(struct device *dev, void *res, void *data)
{
struct clk **c = res;
if (!c || !*c) {
WARN_ON(!c || !*c);
return 0;
}
return *c == data;
}
void devm_clk_put(struct device *dev, struct clk *clk)
{
int ret;
ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
WARN_ON(ret);
}
EXPORT_SYMBOL(devm_clk_put);

45
drivers/clk/clkdev.c
View file

@ -171,51 +171,6 @@ void clk_put(struct clk *clk)
}
EXPORT_SYMBOL(clk_put);
static void devm_clk_release(struct device *dev, void *res)
{
clk_put(*(struct clk **)res);
}
struct clk *devm_clk_get(struct device *dev, const char *id)
{
struct clk **ptr, *clk;
ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);
clk = clk_get(dev, id);
if (!IS_ERR(clk)) {
*ptr = clk;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return clk;
}
EXPORT_SYMBOL(devm_clk_get);
static int devm_clk_match(struct device *dev, void *res, void *data)
{
struct clk **c = res;
if (!c || !*c) {
WARN_ON(!c || !*c);
return 0;
}
return *c == data;
}
void devm_clk_put(struct device *dev, struct clk *clk)
{
int ret;
ret = devres_destroy(dev, devm_clk_release, devm_clk_match, clk);
WARN_ON(ret);
}
EXPORT_SYMBOL(devm_clk_put);
void clkdev_add(struct clk_lookup *cl)
{
mutex_lock(&clocks_mutex);

63
drivers/cpufreq/powernow-k8.c
View file

@ -35,7 +35,6 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/cpumask.h>
#include <linux/sched.h> /* for current / set_cpus_allowed() */
#include <linux/io.h>
#include <linux/delay.h>
@ -1139,16 +1138,23 @@ static int transition_frequency_pstate(struct powernow_k8_data *data,
return res;
}
/* Driver entry point to switch to the target frequency */
static int powernowk8_target(struct cpufreq_policy *pol,
unsigned targfreq, unsigned relation)
struct powernowk8_target_arg {
struct cpufreq_policy *pol;
unsigned targfreq;
unsigned relation;
};
static long powernowk8_target_fn(void *arg)
{
cpumask_var_t oldmask;
struct powernowk8_target_arg *pta = arg;
struct cpufreq_policy *pol = pta->pol;
unsigned targfreq = pta->targfreq;
unsigned relation = pta->relation;
struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
u32 checkfid;
u32 checkvid;
unsigned int newstate;
int ret = -EIO;
int ret;
if (!data)
return -EINVAL;
@ -1156,29 +1162,16 @@ static int powernowk8_target(struct cpufreq_policy *pol,
checkfid = data->currfid;
checkvid = data->currvid;
/* only run on specific CPU from here on. */
/* This is poor form: use a workqueue or smp_call_function_single */
if (!alloc_cpumask_var(&oldmask, GFP_KERNEL))
return -ENOMEM;
cpumask_copy(oldmask, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(pol->cpu));
if (smp_processor_id() != pol->cpu) {
printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
goto err_out;
}
if (pending_bit_stuck()) {
printk(KERN_ERR PFX "failing targ, change pending bit set\n");
goto err_out;
return -EIO;
}
pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n",
pol->cpu, targfreq, pol->min, pol->max, relation);
if (query_current_values_with_pending_wait(data))
goto err_out;
return -EIO;
if (cpu_family != CPU_HW_PSTATE) {
pr_debug("targ: curr fid 0x%x, vid 0x%x\n",
@ -1196,7 +1189,7 @@ static int powernowk8_target(struct cpufreq_policy *pol,
if (cpufreq_frequency_table_target(pol, data->powernow_table,
targfreq, relation, &newstate))
goto err_out;
return -EIO;
mutex_lock(&fidvid_mutex);
@ -1209,9 +1202,8 @@ static int powernowk8_target(struct cpufreq_policy *pol,
ret = transition_frequency_fidvid(data, newstate);
if (ret) {
printk(KERN_ERR PFX "transition frequency failed\n");
ret = 1;
mutex_unlock(&fidvid_mutex);
goto err_out;
return 1;
}
mutex_unlock(&fidvid_mutex);
@ -1220,12 +1212,25 @@ static int powernowk8_target(struct cpufreq_policy *pol,
data->powernow_table[newstate].index);
else
pol->cur = find_khz_freq_from_fid(data->currfid);
ret = 0;
err_out:
set_cpus_allowed_ptr(current, oldmask);
free_cpumask_var(oldmask);
return ret;
return 0;
}
/* Driver entry point to switch to the target frequency */
static int powernowk8_target(struct cpufreq_policy *pol,
unsigned targfreq, unsigned relation)
{
struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq,
.relation = relation };
/*
* Must run on @pol->cpu. cpufreq core is responsible for ensuring
* that we're bound to the current CPU and pol->cpu stays online.
*/
if (smp_processor_id() == pol->cpu)
return powernowk8_target_fn(&pta);
else
return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
}
/* Driver entry point to verify the policy and range of frequencies */

1
drivers/crypto/caam/key_gen.c
View file

@ -120,3 +120,4 @@ u32 gen_split_key(struct device *jrdev, u8 *key_out, int split_key_len,
return ret;
}
EXPORT_SYMBOL(gen_split_key);

13
drivers/dma/at_hdmac.c
View file

@ -661,7 +661,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
flags);
if (unlikely(!atslave || !sg_len)) {
dev_dbg(chan2dev(chan), "prep_dma_memcpy: length is zero!\n");
dev_dbg(chan2dev(chan), "prep_slave_sg: sg length is zero!\n");
return NULL;
}
@ -689,6 +689,11 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
mem = sg_dma_address(sg);
len = sg_dma_len(sg);
if (unlikely(!len)) {
dev_dbg(chan2dev(chan),
"prep_slave_sg: sg(%d) data length is zero\n", i);
goto err;
}
mem_width = 2;
if (unlikely(mem & 3 || len & 3))
mem_width = 0;
@ -724,6 +729,11 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
mem = sg_dma_address(sg);
len = sg_dma_len(sg);
if (unlikely(!len)) {
dev_dbg(chan2dev(chan),
"prep_slave_sg: sg(%d) data length is zero\n", i);
goto err;
}
mem_width = 2;
if (unlikely(mem & 3 || len & 3))
mem_width = 0;
@ -757,6 +767,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
err_desc_get:
dev_err(chan2dev(chan), "not enough descriptors available\n");
err:
atc_desc_put(atchan, first);
return NULL;
}

21
drivers/dma/pl330.c
View file

@ -1567,17 +1567,19 @@ static int pl330_submit_req(void *ch_id, struct pl330_req *r)
goto xfer_exit;
}
/* Prefer Secure Channel */
if (!_manager_ns(thrd))
r->cfg->nonsecure = 0;
else
r->cfg->nonsecure = 1;
/* Use last settings, if not provided */
if (r->cfg)
if (r->cfg) {
/* Prefer Secure Channel */
if (!_manager_ns(thrd))
r->cfg->nonsecure = 0;
else
r->cfg->nonsecure = 1;
ccr = _prepare_ccr(r->cfg);
else
} else {
ccr = readl(regs + CC(thrd->id));
}
/* If this req doesn't have valid xfer settings */
if (!_is_valid(ccr)) {
@ -2928,6 +2930,11 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
num_chan = max_t(int, pi->pcfg.num_peri, pi->pcfg.num_chan);
pdmac->peripherals = kzalloc(num_chan * sizeof(*pch), GFP_KERNEL);
if (!pdmac->peripherals) {
ret = -ENOMEM;
dev_err(&adev->dev, "unable to allocate pdmac->peripherals\n");
goto probe_err5;
}
for (i = 0; i < num_chan; i++) {
pch = &pdmac->peripherals[i];

57
drivers/edac/edac_mc.c
View file

@ -199,6 +199,36 @@ void *edac_align_ptr(void **p, unsigned size, int n_elems)
return (void *)(((unsigned long)ptr) + align - r);
}
static void _edac_mc_free(struct mem_ctl_info *mci)
{
int i, chn, row;
struct csrow_info *csr;
const unsigned int tot_dimms = mci->tot_dimms;
const unsigned int tot_channels = mci->num_cschannel;
const unsigned int tot_csrows = mci->nr_csrows;
if (mci->dimms) {
for (i = 0; i < tot_dimms; i++)
kfree(mci->dimms[i]);
kfree(mci->dimms);
}
if (mci->csrows) {
for (row = 0; row < tot_csrows; row++) {
csr = mci->csrows[row];
if (csr) {
if (csr->channels) {
for (chn = 0; chn < tot_channels; chn++)
kfree(csr->channels[chn]);
kfree(csr->channels);
}
kfree(csr);
}
}
kfree(mci->csrows);
}
kfree(mci);
}
/**
* edac_mc_alloc: Allocate and partially fill a struct mem_ctl_info structure
* @mc_num: Memory controller number
@ -413,24 +443,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
return mci;
error:
if (mci->dimms) {
for (i = 0; i < tot_dimms; i++)
kfree(mci->dimms[i]);
kfree(mci->dimms);
}
if (mci->csrows) {
for (chn = 0; chn < tot_channels; chn++) {
csr = mci->csrows[chn];
if (csr) {
for (chn = 0; chn < tot_channels; chn++)
kfree(csr->channels[chn]);
kfree(csr);
}
kfree(mci->csrows[i]);
}
kfree(mci->csrows);
}
kfree(mci);
_edac_mc_free(mci);
return NULL;
}
@ -445,6 +458,14 @@ void edac_mc_free(struct mem_ctl_info *mci)
{
edac_dbg(1, "\n");
/* If we're not yet registered with sysfs free only what was allocated
* in edac_mc_alloc().
*/
if (!device_is_registered(&mci->dev)) {
_edac_mc_free(mci);
return;
}
/* the mci instance is freed here, when the sysfs object is dropped */
edac_unregister_sysfs(mci);
}

19
drivers/extcon/extcon-max77693.c
View file

@ -669,13 +669,18 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
}
info->dev = &pdev->dev;
info->max77693 = max77693;
info->max77693->regmap_muic = regmap_init_i2c(info->max77693->muic,
&max77693_muic_regmap_config);
if (IS_ERR(info->max77693->regmap_muic)) {
ret = PTR_ERR(info->max77693->regmap_muic);
dev_err(max77693->dev,
"failed to allocate register map: %d\n", ret);
goto err_regmap;
if (info->max77693->regmap_muic)
dev_dbg(&pdev->dev, "allocate register map\n");
else {
info->max77693->regmap_muic = devm_regmap_init_i2c(
info->max77693->muic,
&max77693_muic_regmap_config);
if (IS_ERR(info->max77693->regmap_muic)) {
ret = PTR_ERR(info->max77693->regmap_muic);
dev_err(max77693->dev,
"failed to allocate register map: %d\n", ret);
goto err_regmap;
}
}
platform_set_drvdata(pdev, info);
mutex_init(&info->mutex);

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