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This is the 4.19.60 stable release

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Merge 4.19.60 into android-4.19

Changes in 4.19.60
	Revert "e1000e: fix cyclic resets at link up with active tx"
	e1000e: start network tx queue only when link is up
	Input: synaptics - enable SMBUS on T480 thinkpad trackpad
	nilfs2: do not use unexported cpu_to_le32()/le32_to_cpu() in uapi header
	drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
	firmware: improve LSM/IMA security behaviour
	irqchip/gic-v3-its: Fix command queue pointer comparison bug
	clk: ti: clkctrl: Fix returning uninitialized data
	efi/bgrt: Drop BGRT status field reserved bits check
	perf/core: Fix perf_sample_regs_user() mm check
	ARM: dts: gemini Fix up DNS-313 compatible string
	ARM: omap2: remove incorrect __init annotation
	afs: Fix uninitialised spinlock afs_volume::cb_break_lock
	x86/apic: Fix integer overflow on 10 bit left shift of cpu_khz
	be2net: fix link failure after ethtool offline test
	ppp: mppe: Add softdep to arc4
	sis900: fix TX completion
	ARM: dts: imx6ul: fix PWM[1-4] interrupts
	pinctrl: mcp23s08: Fix add_data and irqchip_add_nested call order
	dm table: don't copy from a NULL pointer in realloc_argv()
	dm verity: use message limit for data block corruption message
	x86/boot/64: Fix crash if kernel image crosses page table boundary
	x86/boot/64: Add missing fixup_pointer() for next_early_pgt access
	HID: chicony: add another quirk for PixArt mouse
	HID: multitouch: Add pointstick support for ALPS Touchpad
	pinctrl: mediatek: Ignore interrupts that are wake only during resume
	cpu/hotplug: Fix out-of-bounds read when setting fail state
	pinctrl: mediatek: Update cur_mask in mask/mask ops
	linux/kernel.h: fix overflow for DIV_ROUND_UP_ULL
	genirq: Delay deactivation in free_irq()
	genirq: Fix misleading synchronize_irq() documentation
	genirq: Add optional hardware synchronization for shutdown
	x86/ioapic: Implement irq_get_irqchip_state() callback
	x86/irq: Handle spurious interrupt after shutdown gracefully
	x86/irq: Seperate unused system vectors from spurious entry again
	ARC: hide unused function unw_hdr_alloc
	s390: fix stfle zero padding
	s390/qdio: (re-)initialize tiqdio list entries
	s390/qdio: don't touch the dsci in tiqdio_add_input_queues()
	crypto: talitos - move struct talitos_edesc into talitos.h
	crypto: talitos - fix hash on SEC1.
	crypto/NX: Set receive window credits to max number of CRBs in RxFIFO
	regmap-irq: do not write mask register if mask_base is zero
	drm/udl: introduce a macro to convert dev to udl.
	drm/udl: Replace drm_dev_unref with drm_dev_put
	drm/udl: move to embedding drm device inside udl device.
	x86/entry/32: Fix ENDPROC of common_spurious
	Linux 4.19.60

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I283306f8640e06b3ffe8bcdca1478a0fd3af77db
This commit is contained in:
Greg Kroah-Hartman 2019-07-22 14:36:16 +02:00
commit bafa20fa20
56 changed files with 534 additions and 267 deletions
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2
Makefile
View file

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
SUBLEVEL = 59
SUBLEVEL = 60
EXTRAVERSION =
NAME = "People's Front"

9
arch/arc/kernel/unwind.c
View file

@ -185,11 +185,6 @@ static void *__init unw_hdr_alloc_early(unsigned long sz)
MAX_DMA_ADDRESS);
}
static void *unw_hdr_alloc(unsigned long sz)
{
return kmalloc(sz, GFP_KERNEL);
}
static void init_unwind_table(struct unwind_table *table, const char *name,
const void *core_start, unsigned long core_size,
const void *init_start, unsigned long init_size,
@ -370,6 +365,10 @@ static void init_unwind_hdr(struct unwind_table *table,
}
#ifdef CONFIG_MODULES
static void *unw_hdr_alloc(unsigned long sz)
{
return kmalloc(sz, GFP_KERNEL);
}
static struct unwind_table *last_table;

2
arch/arm/boot/dts/gemini-dlink-dns-313.dts
View file

@ -11,7 +11,7 @@
/ {
model = "D-Link DNS-313 1-Bay Network Storage Enclosure";
compatible = "dlink,dir-313", "cortina,gemini";
compatible = "dlink,dns-313", "cortina,gemini";
#address-cells = <1>;
#size-cells = <1>;

8
arch/arm/boot/dts/imx6ul.dtsi
View file

@ -359,7 +359,7 @@
pwm1: pwm@2080000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x02080000 0x4000>;
interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM1>,
<&clks IMX6UL_CLK_PWM1>;
clock-names = "ipg", "per";
@ -370,7 +370,7 @@
pwm2: pwm@2084000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x02084000 0x4000>;
interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM2>,
<&clks IMX6UL_CLK_PWM2>;
clock-names = "ipg", "per";
@ -381,7 +381,7 @@
pwm3: pwm@2088000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x02088000 0x4000>;
interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM3>,
<&clks IMX6UL_CLK_PWM3>;
clock-names = "ipg", "per";
@ -392,7 +392,7 @@
pwm4: pwm@208c000 {
compatible = "fsl,imx6ul-pwm", "fsl,imx27-pwm";
reg = <0x0208c000 0x4000>;
interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6UL_CLK_PWM4>,
<&clks IMX6UL_CLK_PWM4>;
clock-names = "ipg", "per";

2
arch/arm/mach-omap2/prm3xxx.c
View file

@ -433,7 +433,7 @@ static void omap3_prm_reconfigure_io_chain(void)
* registers, and omap3xxx_prm_reconfigure_io_chain() must be called.
* No return value.
*/
static void __init omap3xxx_prm_enable_io_wakeup(void)
static void omap3xxx_prm_enable_io_wakeup(void)
{
if (prm_features & PRM_HAS_IO_WAKEUP)
omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD,

21
arch/s390/include/asm/facility.h
View file

@ -59,6 +59,18 @@ static inline int test_facility(unsigned long nr)
return __test_facility(nr, &S390_lowcore.stfle_fac_list);
}
static inline unsigned long __stfle_asm(u64 *stfle_fac_list, int size)
{
register unsigned long reg0 asm("0") = size - 1;
asm volatile(
".insn s,0xb2b00000,0(%1)" /* stfle */
: "+d" (reg0)
: "a" (stfle_fac_list)
: "memory", "cc");
return reg0;
}
/**
* stfle - Store facility list extended
* @stfle_fac_list: array where facility list can be stored
@ -76,13 +88,8 @@ static inline void stfle(u64 *stfle_fac_list, int size)
memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
if (S390_lowcore.stfl_fac_list & 0x01000000) {
/* More facility bits available with stfle */
register unsigned long reg0 asm("0") = size - 1;
asm volatile(".insn s,0xb2b00000,0(%1)" /* stfle */
: "+d" (reg0)
: "a" (stfle_fac_list)
: "memory", "cc");
nr = (reg0 + 1) * 8; /* # bytes stored by stfle */
nr = __stfle_asm(stfle_fac_list, size);
nr = min_t(unsigned long, (nr + 1) * 8, size * 8);
}
memset((char *) stfle_fac_list + nr, 0, size * 8 - nr);
preempt_enable();

24
arch/x86/entry/entry_32.S
View file

@ -1098,6 +1098,30 @@ ENTRY(irq_entries_start)
.endr
END(irq_entries_start)
#ifdef CONFIG_X86_LOCAL_APIC
.align 8
ENTRY(spurious_entries_start)
vector=FIRST_SYSTEM_VECTOR
.rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
pushl $(~vector+0x80) /* Note: always in signed byte range */
vector=vector+1
jmp common_spurious
.align 8
.endr
END(spurious_entries_start)
common_spurious:
ASM_CLAC
addl $-0x80, (%esp) /* Adjust vector into the [-256, -1] range */
SAVE_ALL switch_stacks=1
ENCODE_FRAME_POINTER
TRACE_IRQS_OFF
movl %esp, %eax
call smp_spurious_interrupt
jmp ret_from_intr
ENDPROC(common_spurious)
#endif
/*
* the CPU automatically disables interrupts when executing an IRQ vector,
* so IRQ-flags tracing has to follow that:

24
arch/x86/entry/entry_64.S
View file

@ -438,6 +438,18 @@ ENTRY(irq_entries_start)
.endr
END(irq_entries_start)
.align 8
ENTRY(spurious_entries_start)
vector=FIRST_SYSTEM_VECTOR
.rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
UNWIND_HINT_IRET_REGS
pushq $(~vector+0x80) /* Note: always in signed byte range */
jmp common_spurious
.align 8
vector=vector+1
.endr
END(spurious_entries_start)
.macro DEBUG_ENTRY_ASSERT_IRQS_OFF
#ifdef CONFIG_DEBUG_ENTRY
pushq %rax
@ -636,8 +648,18 @@ _ASM_NOKPROBE(interrupt_entry)
/*
* The interrupt stubs push (~vector+0x80) onto the stack and
* then jump to common_interrupt.
* then jump to common_spurious/interrupt.
*/
common_spurious:
addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */
call interrupt_entry
UNWIND_HINT_REGS indirect=1
call smp_spurious_interrupt /* rdi points to pt_regs */
jmp ret_from_intr
END(common_spurious)
_ASM_NOKPROBE(common_spurious)
/* common_interrupt is a hotpath. Align it */
.p2align CONFIG_X86_L1_CACHE_SHIFT
common_interrupt:
addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */

5
arch/x86/include/asm/hw_irq.h
View file

@ -150,8 +150,11 @@ extern char irq_entries_start[];
#define trace_irq_entries_start irq_entries_start
#endif
extern char spurious_entries_start[];
#define VECTOR_UNUSED NULL
#define VECTOR_RETRIGGERED ((void *)~0UL)
#define VECTOR_SHUTDOWN ((void *)~0UL)
#define VECTOR_RETRIGGERED ((void *)~1UL)
typedef struct irq_desc* vector_irq_t[NR_VECTORS];
DECLARE_PER_CPU(vector_irq_t, vector_irq);

38
arch/x86/kernel/apic/apic.c
View file

@ -1452,7 +1452,8 @@ static void apic_pending_intr_clear(void)
if (queued) {
if (boot_cpu_has(X86_FEATURE_TSC) && cpu_khz) {
ntsc = rdtsc();
max_loops = (cpu_khz << 10) - (ntsc - tsc);
max_loops = (long long)cpu_khz << 10;
max_loops -= ntsc - tsc;
} else {
max_loops--;
}
@ -2026,21 +2027,32 @@ __visible void __irq_entry smp_spurious_interrupt(struct pt_regs *regs)
entering_irq();
trace_spurious_apic_entry(vector);
/*
* Check if this really is a spurious interrupt and ACK it
* if it is a vectored one. Just in case...
* Spurious interrupts should not be ACKed.
*/
v = apic_read(APIC_ISR + ((vector & ~0x1f) >> 1));
if (v & (1 << (vector & 0x1f)))
ack_APIC_irq();
inc_irq_stat(irq_spurious_count);
/* see sw-dev-man vol 3, chapter 7.4.13.5 */
pr_info("spurious APIC interrupt through vector %02x on CPU#%d, "
"should never happen.\n", vector, smp_processor_id());
/*
* If this is a spurious interrupt then do not acknowledge
*/
if (vector == SPURIOUS_APIC_VECTOR) {
/* See SDM vol 3 */
pr_info("Spurious APIC interrupt (vector 0xFF) on CPU#%d, should never happen.\n",
smp_processor_id());
goto out;
}
/*
* If it is a vectored one, verify it's set in the ISR. If set,
* acknowledge it.
*/
v = apic_read(APIC_ISR + ((vector & ~0x1f) >> 1));
if (v & (1 << (vector & 0x1f))) {
pr_info("Spurious interrupt (vector 0x%02x) on CPU#%d. Acked\n",
vector, smp_processor_id());
ack_APIC_irq();
} else {
pr_info("Spurious interrupt (vector 0x%02x) on CPU#%d. Not pending!\n",
vector, smp_processor_id());
}
out:
trace_spurious_apic_exit(vector);
exiting_irq();
}

46
arch/x86/kernel/apic/io_apic.c
View file

@ -1891,6 +1891,50 @@ static int ioapic_set_affinity(struct irq_data *irq_data,
return ret;
}
/*
* Interrupt shutdown masks the ioapic pin, but the interrupt might already
* be in flight, but not yet serviced by the target CPU. That means
* __synchronize_hardirq() would return and claim that everything is calmed
* down. So free_irq() would proceed and deactivate the interrupt and free
* resources.
*
* Once the target CPU comes around to service it it will find a cleared
* vector and complain. While the spurious interrupt is harmless, the full
* release of resources might prevent the interrupt from being acknowledged
* which keeps the hardware in a weird state.
*
* Verify that the corresponding Remote-IRR bits are clear.
*/
static int ioapic_irq_get_chip_state(struct irq_data *irqd,
enum irqchip_irq_state which,
bool *state)
{
struct mp_chip_data *mcd = irqd->chip_data;
struct IO_APIC_route_entry rentry;
struct irq_pin_list *p;
if (which != IRQCHIP_STATE_ACTIVE)
return -EINVAL;
*state = false;
raw_spin_lock(&ioapic_lock);
for_each_irq_pin(p, mcd->irq_2_pin) {
rentry = __ioapic_read_entry(p->apic, p->pin);
/*
* The remote IRR is only valid in level trigger mode. It's
* meaning is undefined for edge triggered interrupts and
* irrelevant because the IO-APIC treats them as fire and
* forget.
*/
if (rentry.irr && rentry.trigger) {
*state = true;
break;
}
}
raw_spin_unlock(&ioapic_lock);
return 0;
}
static struct irq_chip ioapic_chip __read_mostly = {
.name = "IO-APIC",
.irq_startup = startup_ioapic_irq,
@ -1900,6 +1944,7 @@ static struct irq_chip ioapic_chip __read_mostly = {
.irq_eoi = ioapic_ack_level,
.irq_set_affinity = ioapic_set_affinity,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_get_irqchip_state = ioapic_irq_get_chip_state,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
@ -1912,6 +1957,7 @@ static struct irq_chip ioapic_ir_chip __read_mostly = {
.irq_eoi = ioapic_ir_ack_level,
.irq_set_affinity = ioapic_set_affinity,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_get_irqchip_state = ioapic_irq_get_chip_state,
.flags = IRQCHIP_SKIP_SET_WAKE,
};

4
arch/x86/kernel/apic/vector.c
View file

@ -342,7 +342,7 @@ static void clear_irq_vector(struct irq_data *irqd)
trace_vector_clear(irqd->irq, vector, apicd->cpu, apicd->prev_vector,
apicd->prev_cpu);
per_cpu(vector_irq, apicd->cpu)[vector] = VECTOR_UNUSED;
per_cpu(vector_irq, apicd->cpu)[vector] = VECTOR_SHUTDOWN;
irq_matrix_free(vector_matrix, apicd->cpu, vector, managed);
apicd->vector = 0;
@ -351,7 +351,7 @@ static void clear_irq_vector(struct irq_data *irqd)
if (!vector)
return;
per_cpu(vector_irq, apicd->prev_cpu)[vector] = VECTOR_UNUSED;
per_cpu(vector_irq, apicd->prev_cpu)[vector] = VECTOR_SHUTDOWN;
irq_matrix_free(vector_matrix, apicd->prev_cpu, vector, managed);
apicd->prev_vector = 0;
apicd->move_in_progress = 0;

20
arch/x86/kernel/head64.c
View file

@ -184,24 +184,25 @@ unsigned long __head __startup_64(unsigned long physaddr,
pgtable_flags = _KERNPG_TABLE_NOENC + sme_get_me_mask();
if (la57) {
p4d = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr);
p4d = fixup_pointer(early_dynamic_pgts[(*next_pgt_ptr)++],
physaddr);
i = (physaddr >> PGDIR_SHIFT) % PTRS_PER_PGD;
pgd[i + 0] = (pgdval_t)p4d + pgtable_flags;
pgd[i + 1] = (pgdval_t)p4d + pgtable_flags;
i = (physaddr >> P4D_SHIFT) % PTRS_PER_P4D;
p4d[i + 0] = (pgdval_t)pud + pgtable_flags;
p4d[i + 1] = (pgdval_t)pud + pgtable_flags;
i = physaddr >> P4D_SHIFT;
p4d[(i + 0) % PTRS_PER_P4D] = (pgdval_t)pud + pgtable_flags;
p4d[(i + 1) % PTRS_PER_P4D] = (pgdval_t)pud + pgtable_flags;
} else {
i = (physaddr >> PGDIR_SHIFT) % PTRS_PER_PGD;
pgd[i + 0] = (pgdval_t)pud + pgtable_flags;
pgd[i + 1] = (pgdval_t)pud + pgtable_flags;
}
i = (physaddr >> PUD_SHIFT) % PTRS_PER_PUD;
pud[i + 0] = (pudval_t)pmd + pgtable_flags;
pud[i + 1] = (pudval_t)pmd + pgtable_flags;
i = physaddr >> PUD_SHIFT;
pud[(i + 0) % PTRS_PER_PUD] = (pudval_t)pmd + pgtable_flags;
pud[(i + 1) % PTRS_PER_PUD] = (pudval_t)pmd + pgtable_flags;
pmd_entry = __PAGE_KERNEL_LARGE_EXEC & ~_PAGE_GLOBAL;
/* Filter out unsupported __PAGE_KERNEL_* bits: */
@ -211,8 +212,9 @@ unsigned long __head __startup_64(unsigned long physaddr,
pmd_entry += physaddr;
for (i = 0; i < DIV_ROUND_UP(_end - _text, PMD_SIZE); i++) {
int idx = i + (physaddr >> PMD_SHIFT) % PTRS_PER_PMD;
pmd[idx] = pmd_entry + i * PMD_SIZE;
int idx = i + (physaddr >> PMD_SHIFT);
pmd[idx % PTRS_PER_PMD] = pmd_entry + i * PMD_SIZE;
}
/*

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

@ -321,7 +321,8 @@ void __init idt_setup_apic_and_irq_gates(void)
#ifdef CONFIG_X86_LOCAL_APIC
for_each_clear_bit_from(i, system_vectors, NR_VECTORS) {
set_bit(i, system_vectors);
set_intr_gate(i, spurious_interrupt);
entry = spurious_entries_start + 8 * (i - FIRST_SYSTEM_VECTOR);
set_intr_gate(i, entry);
}
#endif
}

2
arch/x86/kernel/irq.c
View file

@ -246,7 +246,7 @@ __visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs)
if (!handle_irq(desc, regs)) {
ack_APIC_irq();
if (desc != VECTOR_RETRIGGERED) {
if (desc != VECTOR_RETRIGGERED && desc != VECTOR_SHUTDOWN) {
pr_emerg_ratelimited("%s: %d.%d No irq handler for vector\n",
__func__, smp_processor_id(),
vector);

3
drivers/base/cacheinfo.c
View file

@ -653,7 +653,8 @@ static int cacheinfo_cpu_pre_down(unsigned int cpu)
static int __init cacheinfo_sysfs_init(void)
{
return cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "base/cacheinfo:online",
return cpuhp_setup_state(CPUHP_AP_BASE_CACHEINFO_ONLINE,
"base/cacheinfo:online",
cacheinfo_cpu_online, cacheinfo_cpu_pre_down);
}
device_initcall(cacheinfo_sysfs_init);

2
drivers/base/firmware_loader/fallback.c
View file

@ -659,7 +659,7 @@ static bool fw_run_sysfs_fallback(enum fw_opt opt_flags)
/* Also permit LSMs and IMA to fail firmware sysfs fallback */
ret = security_kernel_load_data(LOADING_FIRMWARE);
if (ret < 0)
return ret;
return false;
return fw_force_sysfs_fallback(opt_flags);
}

6
drivers/base/regmap/regmap-irq.c
View file

@ -91,6 +91,9 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
* suppress pointless writes.
*/
for (i = 0; i < d->chip->num_regs; i++) {
if (!d->chip->mask_base)
continue;
reg = d->chip->mask_base +
(i * map->reg_stride * d->irq_reg_stride);
if (d->chip->mask_invert) {
@ -526,6 +529,9 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
/* Mask all the interrupts by default */
for (i = 0; i < chip->num_regs; i++) {
d->mask_buf[i] = d->mask_buf_def[i];
if (!chip->mask_base)
continue;
reg = chip->mask_base +
(i * map->reg_stride * d->irq_reg_stride);
if (chip->mask_invert)

7
drivers/clk/ti/clkctrl.c
View file

@ -229,6 +229,7 @@ static struct clk_hw *_ti_omap4_clkctrl_xlate(struct of_phandle_args *clkspec,
{
struct omap_clkctrl_provider *provider = data;
struct omap_clkctrl_clk *entry;
bool found = false;
if (clkspec->args_count != 2)
return ERR_PTR(-EINVAL);
@ -238,11 +239,13 @@ static struct clk_hw *_ti_omap4_clkctrl_xlate(struct of_phandle_args *clkspec,
list_for_each_entry(entry, &provider->clocks, node) {
if (entry->reg_offset == clkspec->args[0] &&
entry->bit_offset == clkspec->args[1])
entry->bit_offset == clkspec->args[1]) {
found = true;
break;
}
}
if (!entry)
if (!found)
return ERR_PTR(-EINVAL);
return entry->clk;

8
drivers/crypto/nx/nx-842-powernv.c
View file

@ -36,8 +36,6 @@ MODULE_ALIAS_CRYPTO("842-nx");
#define WORKMEM_ALIGN (CRB_ALIGN)
#define CSB_WAIT_MAX (5000) /* ms */
#define VAS_RETRIES (10)
/* # of requests allowed per RxFIFO at a time. 0 for unlimited */
#define MAX_CREDITS_PER_RXFIFO (1024)
struct nx842_workmem {
/* Below fields must be properly aligned */
@ -821,7 +819,11 @@ static int __init vas_cfg_coproc_info(struct device_node *dn, int chip_id,
rxattr.lnotify_lpid = lpid;
rxattr.lnotify_pid = pid;
rxattr.lnotify_tid = tid;
rxattr.wcreds_max = MAX_CREDITS_PER_RXFIFO;
/*
* Maximum RX window credits can not be more than #CRBs in
* RxFIFO. Otherwise, can get checkstop if RxFIFO overruns.
*/
rxattr.wcreds_max = fifo_size / CRB_SIZE;
/*
* Open a VAS receice window which is used to configure RxFIFO

97
drivers/crypto/talitos.c
View file

@ -334,6 +334,21 @@ int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc,
}
EXPORT_SYMBOL(talitos_submit);
static __be32 get_request_hdr(struct talitos_request *request, bool is_sec1)
{
struct talitos_edesc *edesc;
if (!is_sec1)
return request->desc->hdr;
if (!request->desc->next_desc)
return request->desc->hdr1;
edesc = container_of(request->desc, struct talitos_edesc, desc);
return ((struct talitos_desc *)(edesc->buf + edesc->dma_len))->hdr1;
}
/*
* process what was done, notify callback of error if not
*/
@ -355,12 +370,7 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch)
/* descriptors with their done bits set don't get the error */
rmb();
if (!is_sec1)
hdr = request->desc->hdr;
else if (request->desc->next_desc)
hdr = (request->desc + 1)->hdr1;
else
hdr = request->desc->hdr1;
hdr = get_request_hdr(request, is_sec1);
if ((hdr & DESC_HDR_DONE) == DESC_HDR_DONE)
status = 0;
@ -490,8 +500,14 @@ static u32 current_desc_hdr(struct device *dev, int ch)
}
}
if (priv->chan[ch].fifo[iter].desc->next_desc == cur_desc)
return (priv->chan[ch].fifo[iter].desc + 1)->hdr;
if (priv->chan[ch].fifo[iter].desc->next_desc == cur_desc) {
struct talitos_edesc *edesc;
edesc = container_of(priv->chan[ch].fifo[iter].desc,
struct talitos_edesc, desc);
return ((struct talitos_desc *)
(edesc->buf + edesc->dma_len))->hdr;
}
return priv->chan[ch].fifo[iter].desc->hdr;
}
@ -913,36 +929,6 @@ static int aead_setkey(struct crypto_aead *authenc,
return -EINVAL;
}
/*
* talitos_edesc - s/w-extended descriptor
* @src_nents: number of segments in input scatterlist
* @dst_nents: number of segments in output scatterlist
* @icv_ool: whether ICV is out-of-line
* @iv_dma: dma address of iv for checking continuity and link table
* @dma_len: length of dma mapped link_tbl space
* @dma_link_tbl: bus physical address of link_tbl/buf
* @desc: h/w descriptor
* @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1) (SEC2)
* @buf: input and output buffeur (if {src,dst}_nents > 1) (SEC1)
*
* if decrypting (with authcheck), or either one of src_nents or dst_nents
* is greater than 1, an integrity check value is concatenated to the end
* of link_tbl data
*/
struct talitos_edesc {
int src_nents;
int dst_nents;
bool icv_ool;
dma_addr_t iv_dma;
int dma_len;
dma_addr_t dma_link_tbl;
struct talitos_desc desc;
union {
struct talitos_ptr link_tbl[0];
u8 buf[0];
};
};
static void talitos_sg_unmap(struct device *dev,
struct talitos_edesc *edesc,
struct scatterlist *src,
@ -1431,15 +1417,11 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
edesc->dst_nents = dst_nents;
edesc->iv_dma = iv_dma;
edesc->dma_len = dma_len;
if (dma_len) {
void *addr = &edesc->link_tbl[0];
if (is_sec1 && !dst)
addr += sizeof(struct talitos_desc);
edesc->dma_link_tbl = dma_map_single(dev, addr,
if (dma_len)
edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0],
edesc->dma_len,
DMA_BIDIRECTIONAL);
}
return edesc;
}
@ -1706,13 +1688,15 @@ static void common_nonsnoop_hash_unmap(struct device *dev,
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
struct talitos_desc *desc = &edesc->desc;
struct talitos_desc *desc2 = desc + 1;
struct talitos_desc *desc2 = (struct talitos_desc *)
(edesc->buf + edesc->dma_len);
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
if (desc->next_desc &&
desc->ptr[5].ptr != desc2->ptr[5].ptr)
unmap_single_talitos_ptr(dev, &desc2->ptr[5], DMA_FROM_DEVICE);
if (req_ctx->psrc)
talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0);
/* When using hashctx-in, must unmap it. */
@ -1780,7 +1764,6 @@ static void talitos_handle_buggy_hash(struct talitos_ctx *ctx,
static int common_nonsnoop_hash(struct talitos_edesc *edesc,
struct ahash_request *areq, unsigned int length,
unsigned int offset,
void (*callback) (struct device *dev,
struct talitos_desc *desc,
void *context, int error))
@ -1819,9 +1802,7 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
sg_count = edesc->src_nents ?: 1;
if (is_sec1 && sg_count > 1)
sg_pcopy_to_buffer(req_ctx->psrc, sg_count,
edesc->buf + sizeof(struct talitos_desc),
length, req_ctx->nbuf);
sg_copy_to_buffer(req_ctx->psrc, sg_count, edesc->buf, length);
else if (length)
sg_count = dma_map_sg(dev, req_ctx->psrc, sg_count,
DMA_TO_DEVICE);
@ -1834,7 +1815,7 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
DMA_TO_DEVICE);
} else {
sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
&desc->ptr[3], sg_count, offset, 0);
&desc->ptr[3], sg_count, 0, 0);
if (sg_count > 1)
sync_needed = true;
}
@ -1858,7 +1839,8 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
talitos_handle_buggy_hash(ctx, edesc, &desc->ptr[3]);
if (is_sec1 && req_ctx->nbuf && length) {
struct talitos_desc *desc2 = desc + 1;
struct talitos_desc *desc2 = (struct talitos_desc *)
(edesc->buf + edesc->dma_len);
dma_addr_t next_desc;
memset(desc2, 0, sizeof(*desc2));
@ -1879,7 +1861,7 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
DMA_TO_DEVICE);
copy_talitos_ptr(&desc2->ptr[2], &desc->ptr[2], is_sec1);
sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
&desc2->ptr[3], sg_count, offset, 0);
&desc2->ptr[3], sg_count, 0, 0);
if (sg_count > 1)
sync_needed = true;
copy_talitos_ptr(&desc2->ptr[5], &desc->ptr[5], is_sec1);
@ -1990,7 +1972,6 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
struct device *dev = ctx->dev;
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
int offset = 0;
u8 *ctx_buf = req_ctx->buf[req_ctx->buf_idx];
if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) {
@ -2030,6 +2011,8 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
sg_chain(req_ctx->bufsl, 2, areq->src);
req_ctx->psrc = req_ctx->bufsl;
} else if (is_sec1 && req_ctx->nbuf && req_ctx->nbuf < blocksize) {
int offset;
if (nbytes_to_hash > blocksize)
offset = blocksize - req_ctx->nbuf;
else
@ -2042,7 +2025,8 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
sg_copy_to_buffer(areq->src, nents,
ctx_buf + req_ctx->nbuf, offset);
req_ctx->nbuf += offset;
req_ctx->psrc = areq->src;
req_ctx->psrc = scatterwalk_ffwd(req_ctx->bufsl, areq->src,
offset);
} else
req_ctx->psrc = areq->src;
@ -2082,8 +2066,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
if (ctx->keylen && (req_ctx->first || req_ctx->last))
edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_HMAC;
return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, offset,
ahash_done);
return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, ahash_done);
}
static int ahash_update(struct ahash_request *areq)

30
drivers/crypto/talitos.h
View file

@ -65,6 +65,36 @@ struct talitos_desc {
#define TALITOS_DESC_SIZE (sizeof(struct talitos_desc) - sizeof(__be32))
/*
* talitos_edesc - s/w-extended descriptor
* @src_nents: number of segments in input scatterlist
* @dst_nents: number of segments in output scatterlist
* @icv_ool: whether ICV is out-of-line
* @iv_dma: dma address of iv for checking continuity and link table
* @dma_len: length of dma mapped link_tbl space
* @dma_link_tbl: bus physical address of link_tbl/buf
* @desc: h/w descriptor
* @link_tbl: input and output h/w link tables (if {src,dst}_nents > 1) (SEC2)
* @buf: input and output buffeur (if {src,dst}_nents > 1) (SEC1)
*
* if decrypting (with authcheck), or either one of src_nents or dst_nents
* is greater than 1, an integrity check value is concatenated to the end
* of link_tbl data
*/
struct talitos_edesc {
int src_nents;
int dst_nents;
bool icv_ool;
dma_addr_t iv_dma;
int dma_len;
dma_addr_t dma_link_tbl;
struct talitos_desc desc;
union {
struct talitos_ptr link_tbl[0];
u8 buf[0];
};
};
/**
* talitos_request - descriptor submission request
* @desc: descriptor pointer (kernel virtual)

5
drivers/firmware/efi/efi-bgrt.c
View file

@ -50,11 +50,6 @@ void __init efi_bgrt_init(struct acpi_table_header *table)
bgrt->version);
goto out;
}
if (bgrt->status & 0xfe) {
pr_notice("Ignoring BGRT: reserved status bits are non-zero %u\n",
bgrt->status);
goto out;
}
if (bgrt->image_type != 0) {
pr_notice("Ignoring BGRT: invalid image type %u (expected 0)\n",
bgrt->image_type);

56
drivers/gpu/drm/udl/udl_drv.c
View file

@ -47,10 +47,16 @@ static const struct file_operations udl_driver_fops = {
.llseek = noop_llseek,
};
static void udl_driver_release(struct drm_device *dev)
{
udl_fini(dev);
udl_modeset_cleanup(dev);
drm_dev_fini(dev);
kfree(dev);
}
static struct drm_driver driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
.load = udl_driver_load,
.unload = udl_driver_unload,
.release = udl_driver_release,
/* gem hooks */
@ -74,28 +80,56 @@ static struct drm_driver driver = {
.patchlevel = DRIVER_PATCHLEVEL,
};
static struct udl_device *udl_driver_create(struct usb_interface *interface)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct udl_device *udl;
int r;
udl = kzalloc(sizeof(*udl), GFP_KERNEL);
if (!udl)
return ERR_PTR(-ENOMEM);
r = drm_dev_init(&udl->drm, &driver, &interface->dev);
if (r) {
kfree(udl);
return ERR_PTR(r);
}
udl->udev = udev;
udl->drm.dev_private = udl;
r = udl_init(udl);
if (r) {
drm_dev_fini(&udl->drm);
kfree(udl);
return ERR_PTR(r);
}
usb_set_intfdata(interface, udl);
return udl;
}
static int udl_usb_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct drm_device *dev;
int r;
struct udl_device *udl;
dev = drm_dev_alloc(&driver, &interface->dev);
if (IS_ERR(dev))
return PTR_ERR(dev);
udl = udl_driver_create(interface);
if (IS_ERR(udl))
return PTR_ERR(udl);
r = drm_dev_register(dev, (unsigned long)udev);
r = drm_dev_register(&udl->drm, 0);
if (r)
goto err_free;
usb_set_intfdata(interface, dev);
DRM_INFO("Initialized udl on minor %d\n", dev->primary->index);
DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
return 0;
err_free:
drm_dev_unref(dev);
drm_dev_put(&udl->drm);
return r;
}

9
drivers/gpu/drm/udl/udl_drv.h
View file

@ -50,8 +50,8 @@ struct urb_list {
struct udl_fbdev;
struct udl_device {
struct drm_device drm;
struct device *dev;
struct drm_device *ddev;
struct usb_device *udev;
struct drm_crtc *crtc;
@ -71,6 +71,8 @@ struct udl_device {
atomic_t cpu_kcycles_used; /* transpired during pixel processing */
};
#define to_udl(x) container_of(x, struct udl_device, drm)
struct udl_gem_object {
struct drm_gem_object base;
struct page **pages;
@ -102,9 +104,8 @@ struct urb *udl_get_urb(struct drm_device *dev);
int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len);
void udl_urb_completion(struct urb *urb);
int udl_driver_load(struct drm_device *dev, unsigned long flags);
void udl_driver_unload(struct drm_device *dev);
void udl_driver_release(struct drm_device *dev);
int udl_init(struct udl_device *udl);
void udl_fini(struct drm_device *dev);
int udl_fbdev_init(struct drm_device *dev);
void udl_fbdev_cleanup(struct drm_device *dev);

12
drivers/gpu/drm/udl/udl_fb.c
View file

@ -82,7 +82,7 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
int width, int height)
{
struct drm_device *dev = fb->base.dev;
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
int i, ret;
char *cmd;
cycles_t start_cycles, end_cycles;
@ -210,10 +210,10 @@ static int udl_fb_open(struct fb_info *info, int user)
{
struct udl_fbdev *ufbdev = info->par;
struct drm_device *dev = ufbdev->ufb.base.dev;
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
/* If the USB device is gone, we don't accept new opens */
if (drm_dev_is_unplugged(udl->ddev))
if (drm_dev_is_unplugged(&udl->drm))
return -ENODEV;
ufbdev->fb_count++;
@ -441,7 +441,7 @@ static void udl_fbdev_destroy(struct drm_device *dev,
int udl_fbdev_init(struct drm_device *dev)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
int bpp_sel = fb_bpp;
struct udl_fbdev *ufbdev;
int ret;
@ -480,7 +480,7 @@ int udl_fbdev_init(struct drm_device *dev)
void udl_fbdev_cleanup(struct drm_device *dev)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
if (!udl->fbdev)
return;
@ -491,7 +491,7 @@ void udl_fbdev_cleanup(struct drm_device *dev)
void udl_fbdev_unplug(struct drm_device *dev)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
struct udl_fbdev *ufbdev;
if (!udl->fbdev)
return;

2
drivers/gpu/drm/udl/udl_gem.c
View file

@ -203,7 +203,7 @@ int udl_gem_mmap(struct drm_file *file, struct drm_device *dev,
{
struct udl_gem_object *gobj;
struct drm_gem_object *obj;
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
int ret = 0;
mutex_lock(&udl->gem_lock);

35
drivers/gpu/drm/udl/udl_main.c
View file

@ -29,7 +29,7 @@
static int udl_parse_vendor_descriptor(struct drm_device *dev,
struct usb_device *usbdev)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
char *desc;
char *buf;
char *desc_end;
@ -165,7 +165,7 @@ void udl_urb_completion(struct urb *urb)
static void udl_free_urb_list(struct drm_device *dev)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
int count = udl->urbs.count;
struct list_head *node;
struct urb_node *unode;
@ -198,7 +198,7 @@ static void udl_free_urb_list(struct drm_device *dev)
static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
struct urb *urb;
struct urb_node *unode;
char *buf;
@ -262,7 +262,7 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
struct urb *udl_get_urb(struct drm_device *dev)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
int ret = 0;
struct list_head *entry;
struct urb_node *unode;
@ -295,7 +295,7 @@ struct urb *udl_get_urb(struct drm_device *dev)
int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
int ret;
BUG_ON(len > udl->urbs.size);
@ -310,20 +310,12 @@ int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len)
return ret;
}
int udl_driver_load(struct drm_device *dev, unsigned long flags)
int udl_init(struct udl_device *udl)
{
struct usb_device *udev = (void*)flags;
struct udl_device *udl;
struct drm_device *dev = &udl->drm;
int ret = -ENOMEM;
DRM_DEBUG("\n");
udl = kzalloc(sizeof(struct udl_device), GFP_KERNEL);
if (!udl)
return -ENOMEM;
udl->udev = udev;
udl->ddev = dev;
dev->dev_private = udl;
mutex_init(&udl->gem_lock);
@ -357,7 +349,6 @@ int udl_driver_load(struct drm_device *dev, unsigned long flags)
err:
if (udl->urbs.count)
udl_free_urb_list(dev);
kfree(udl);
DRM_ERROR("%d\n", ret);
return ret;
}
@ -368,9 +359,9 @@ int udl_drop_usb(struct drm_device *dev)
return 0;
}
void udl_driver_unload(struct drm_device *dev)
void udl_fini(struct drm_device *dev)
{
struct udl_device *udl = dev->dev_private;
struct udl_device *udl = to_udl(dev);
drm_kms_helper_poll_fini(dev);
@ -378,12 +369,4 @@ void udl_driver_unload(struct drm_device *dev)
udl_free_urb_list(dev);
udl_fbdev_cleanup(dev);
kfree(udl);
}
void udl_driver_release(struct drm_device *dev)
{
udl_modeset_cleanup(dev);
drm_dev_fini(dev);
kfree(dev);
}

2
drivers/hid/hid-ids.h
View file

@ -82,6 +82,7 @@
#define HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP 0x1220
#define HID_DEVICE_ID_ALPS_U1 0x1215
#define HID_DEVICE_ID_ALPS_T4_BTNLESS 0x120C
#define HID_DEVICE_ID_ALPS_1222 0x1222
#define USB_VENDOR_ID_AMI 0x046b
@ -265,6 +266,7 @@
#define USB_DEVICE_ID_CHICONY_MULTI_TOUCH 0xb19d
#define USB_DEVICE_ID_CHICONY_WIRELESS 0x0618
#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE 0x1053
#define USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2 0x0939
#define USB_DEVICE_ID_CHICONY_WIRELESS2 0x1123
#define USB_DEVICE_ID_ASUS_AK1D 0x1125
#define USB_DEVICE_ID_CHICONY_ACER_SWITCH12 0x1421

4
drivers/hid/hid-multitouch.c
View file

@ -1788,6 +1788,10 @@ static const struct hid_device_id mt_devices[] = {
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ALPS_JP,
HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
{ .driver_data = MT_CLS_WIN_8_DUAL,
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ALPS_JP,
HID_DEVICE_ID_ALPS_1222) },
/* Lenovo X1 TAB Gen 2 */
{ .driver_data = MT_CLS_WIN_8_DUAL,

1
drivers/hid/hid-quirks.c
View file

@ -45,6 +45,7 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM), HID_QUIRK_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD), HID_QUIRK_BADPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK), HID_QUIRK_NOGET },

1
drivers/input/mouse/synaptics.c
View file

@ -176,6 +176,7 @@ static const char * const smbus_pnp_ids[] = {
"LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */
"LEN0073", /* X1 Carbon G5 (Elantech) */
"LEN0092", /* X1 Carbon 6 */
"LEN0093", /* T480 */
"LEN0096", /* X280 */
"LEN0097", /* X280 -> ALPS trackpoint */
"LEN200f", /* T450s */

35
drivers/irqchip/irq-gic-v3-its.c
View file

@ -740,32 +740,43 @@ static void its_flush_cmd(struct its_node *its, struct its_cmd_block *cmd)
}
static int its_wait_for_range_completion(struct its_node *its,
struct its_cmd_block *from,
u64 prev_idx,
struct its_cmd_block *to)
{
u64 rd_idx, from_idx, to_idx;
u64 rd_idx, to_idx, linear_idx;
u32 count = 1000000; /* 1s! */
from_idx = its_cmd_ptr_to_offset(its, from);
/* Linearize to_idx if the command set has wrapped around */
to_idx = its_cmd_ptr_to_offset(its, to);
if (to_idx < prev_idx)
to_idx += ITS_CMD_QUEUE_SZ;
linear_idx = prev_idx;
while (1) {
s64 delta;
rd_idx = readl_relaxed(its->base + GITS_CREADR);
/* Direct case */
if (from_idx < to_idx && rd_idx >= to_idx)
break;
/*
* Compute the read pointer progress, taking the
* potential wrap-around into account.
*/
delta = rd_idx - prev_idx;
if (rd_idx < prev_idx)
delta += ITS_CMD_QUEUE_SZ;
/* Wrapped case */
if (from_idx >= to_idx && rd_idx >= to_idx && rd_idx < from_idx)
linear_idx += delta;
if (linear_idx >= to_idx)
break;
count--;
if (!count) {
pr_err_ratelimited("ITS queue timeout (%llu %llu %llu)\n",
from_idx, to_idx, rd_idx);
pr_err_ratelimited("ITS queue timeout (%llu %llu)\n",
to_idx, linear_idx);
return -1;
}
prev_idx = rd_idx;
cpu_relax();
udelay(1);
}
@ -782,6 +793,7 @@ void name(struct its_node *its, \
struct its_cmd_block *cmd, *sync_cmd, *next_cmd; \
synctype *sync_obj; \
unsigned long flags; \
u64 rd_idx; \
\
raw_spin_lock_irqsave(&its->lock, flags); \
\
@ -803,10 +815,11 @@ void name(struct its_node *its, \
} \
\
post: \
rd_idx = readl_relaxed(its->base + GITS_CREADR); \
next_cmd = its_post_commands(its); \
raw_spin_unlock_irqrestore(&its->lock, flags); \
\
if (its_wait_for_range_completion(its, cmd, next_cmd)) \
if (its_wait_for_range_completion(its, rd_idx, next_cmd)) \
pr_err_ratelimited("ITS cmd %ps failed\n", builder); \
}

2
drivers/md/dm-table.c
View file

@ -562,7 +562,7 @@ static char **realloc_argv(unsigned *size, char **old_argv)
gfp = GFP_NOIO;
}
argv = kmalloc_array(new_size, sizeof(*argv), gfp);
if (argv) {
if (argv && old_argv) {
memcpy(argv, old_argv, *size * sizeof(*argv));
*size = new_size;
}

4
drivers/md/dm-verity-target.c
View file

@ -236,8 +236,8 @@ static int verity_handle_err(struct dm_verity *v, enum verity_block_type type,
BUG();
}
DMERR("%s: %s block %llu is corrupted", v->data_dev->name, type_str,
block);
DMERR_LIMIT("%s: %s block %llu is corrupted", v->data_dev->name,
type_str, block);
if (v->corrupted_errs == DM_VERITY_MAX_CORRUPTED_ERRS)
DMERR("%s: reached maximum errors", v->data_dev->name);

26
drivers/net/ethernet/emulex/benet/be_ethtool.c
View file

@ -895,7 +895,7 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test,
u64 *data)
{
struct be_adapter *adapter = netdev_priv(netdev);
int status;
int status, cnt;
u8 link_status = 0;
if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) {
@ -906,6 +906,9 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test,
memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);
/* check link status before offline tests */
link_status = netif_carrier_ok(netdev);
if (test->flags & ETH_TEST_FL_OFFLINE) {
if (be_loopback_test(adapter, BE_MAC_LOOPBACK, &data[0]) != 0)
test->flags |= ETH_TEST_FL_FAILED;
@ -926,13 +929,26 @@ static void be_self_test(struct net_device *netdev, struct ethtool_test *test,
test->flags |= ETH_TEST_FL_FAILED;
}
status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
/* link status was down prior to test */
if (!link_status) {
test->flags |= ETH_TEST_FL_FAILED;
data[4] = 1;
return;
}
for (cnt = 10; cnt; cnt--) {
status = be_cmd_link_status_query(adapter, NULL, &link_status,
0);
if (status) {
test->flags |= ETH_TEST_FL_FAILED;
data[4] = -1;
} else if (!link_status) {
test->flags |= ETH_TEST_FL_FAILED;
data[4] = 1;
break;
}
if (link_status)
break;
msleep_interruptible(500);
}
}

21
drivers/net/ethernet/intel/e1000e/netdev.c
View file

@ -4208,7 +4208,7 @@ void e1000e_up(struct e1000_adapter *adapter)
e1000_configure_msix(adapter);
e1000_irq_enable(adapter);
netif_start_queue(adapter->netdev);
/* Tx queue started by watchdog timer when link is up */
e1000e_trigger_lsc(adapter);
}
@ -4584,6 +4584,7 @@ int e1000e_open(struct net_device *netdev)
pm_runtime_get_sync(&pdev->dev);
netif_carrier_off(netdev);
netif_stop_queue(netdev);
/* allocate transmit descriptors */
err = e1000e_setup_tx_resources(adapter->tx_ring);
@ -4644,7 +4645,6 @@ int e1000e_open(struct net_device *netdev)
e1000_irq_enable(adapter);
adapter->tx_hang_recheck = false;
netif_start_queue(netdev);
hw->mac.get_link_status = true;
pm_runtime_put(&pdev->dev);
@ -5266,6 +5266,7 @@ static void e1000_watchdog_task(struct work_struct *work)
if (phy->ops.cfg_on_link_up)
phy->ops.cfg_on_link_up(hw);
netif_wake_queue(netdev);
netif_carrier_on(netdev);
if (!test_bit(__E1000_DOWN, &adapter->state))
@ -5279,6 +5280,7 @@ static void e1000_watchdog_task(struct work_struct *work)
/* Link status message must follow this format */
pr_info("%s NIC Link is Down\n", adapter->netdev->name);
netif_carrier_off(netdev);
netif_stop_queue(netdev);
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_timer(&adapter->phy_info_timer,
round_jiffies(jiffies + 2 * HZ));
@ -5286,13 +5288,8 @@ static void e1000_watchdog_task(struct work_struct *work)
/* 8000ES2LAN requires a Rx packet buffer work-around
* on link down event; reset the controller to flush
* the Rx packet buffer.
*
* If the link is lost the controller stops DMA, but
* if there is queued Tx work it cannot be done. So
* reset the controller to flush the Tx packet buffers.
*/
if ((adapter->flags & FLAG_RX_NEEDS_RESTART) ||
e1000_desc_unused(tx_ring) + 1 < tx_ring->count)
if (adapter->flags & FLAG_RX_NEEDS_RESTART)
adapter->flags |= FLAG_RESTART_NOW;
else
pm_schedule_suspend(netdev->dev.parent,
@ -5315,6 +5312,14 @@ static void e1000_watchdog_task(struct work_struct *work)
adapter->gotc_old = adapter->stats.gotc;
spin_unlock(&adapter->stats64_lock);
/* If the link is lost the controller stops DMA, but
* if there is queued Tx work it cannot be done. So
* reset the controller to flush the Tx packet buffers.
*/
if (!netif_carrier_ok(netdev) &&
(e1000_desc_unused(tx_ring) + 1 < tx_ring->count))
adapter->flags |= FLAG_RESTART_NOW;
/* If reset is necessary, do it outside of interrupt context. */
if (adapter->flags & FLAG_RESTART_NOW) {
schedule_work(&adapter->reset_task);

16
drivers/net/ethernet/sis/sis900.c
View file

@ -1057,7 +1057,7 @@ sis900_open(struct net_device *net_dev)
sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
/* Enable all known interrupts by setting the interrupt mask. */
sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
sw32(cr, RxENA | sr32(cr));
sw32(ier, IE);
@ -1578,7 +1578,7 @@ static void sis900_tx_timeout(struct net_device *net_dev)
sw32(txdp, sis_priv->tx_ring_dma);
/* Enable all known interrupts by setting the interrupt mask. */
sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
}
/**
@ -1618,7 +1618,7 @@ sis900_start_xmit(struct sk_buff *skb, struct net_device *net_dev)
spin_unlock_irqrestore(&sis_priv->lock, flags);
return NETDEV_TX_OK;
}
sis_priv->tx_ring[entry].cmdsts = (OWN | skb->len);
sis_priv->tx_ring[entry].cmdsts = (OWN | INTR | skb->len);
sw32(cr, TxENA | sr32(cr));
sis_priv->cur_tx ++;
@ -1674,7 +1674,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance)
do {
status = sr32(isr);
if ((status & (HIBERR|TxURN|TxERR|TxIDLE|RxORN|RxERR|RxOK)) == 0)
if ((status & (HIBERR|TxURN|TxERR|TxIDLE|TxDESC|RxORN|RxERR|RxOK)) == 0)
/* nothing intresting happened */
break;
handled = 1;
@ -1684,7 +1684,7 @@ static irqreturn_t sis900_interrupt(int irq, void *dev_instance)
/* Rx interrupt */
sis900_rx(net_dev);
if (status & (TxURN | TxERR | TxIDLE))
if (status & (TxURN | TxERR | TxIDLE | TxDESC))
/* Tx interrupt */
sis900_finish_xmit(net_dev);
@ -1896,8 +1896,8 @@ static void sis900_finish_xmit (struct net_device *net_dev)
if (tx_status & OWN) {
/* The packet is not transmitted yet (owned by hardware) !
* Note: the interrupt is generated only when Tx Machine
* is idle, so this is an almost impossible case */
* Note: this is an almost impossible condition
* in case of TxDESC ('descriptor interrupt') */
break;
}
@ -2473,7 +2473,7 @@ static int sis900_resume(struct pci_dev *pci_dev)
sis900_set_mode(sis_priv, HW_SPEED_10_MBPS, FDX_CAPABLE_HALF_SELECTED);
/* Enable all known interrupts by setting the interrupt mask. */
sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE);
sw32(imr, RxSOVR | RxORN | RxERR | RxOK | TxURN | TxERR | TxIDLE | TxDESC);
sw32(cr, RxENA | sr32(cr));
sw32(ier, IE);

1
drivers/net/ppp/ppp_mppe.c
View file

@ -63,6 +63,7 @@ MODULE_AUTHOR("Frank Cusack <fcusack@fcusack.com>");
MODULE_DESCRIPTION("Point-to-Point Protocol Microsoft Point-to-Point Encryption support");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE));
MODULE_SOFTDEP("pre: arc4");
MODULE_VERSION("1.0.2");
static unsigned int

34
drivers/pinctrl/mediatek/mtk-eint.c
View file

@ -113,6 +113,8 @@ static void mtk_eint_mask(struct irq_data *d)
void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,
eint->regs->mask_set);
eint->cur_mask[d->hwirq >> 5] &= ~mask;
writel(mask, reg);
}
@ -123,6 +125,8 @@ static void mtk_eint_unmask(struct irq_data *d)
void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq,
eint->regs->mask_clr);
eint->cur_mask[d->hwirq >> 5] |= mask;
writel(mask, reg);
if (eint->dual_edge[d->hwirq])
@ -217,19 +221,6 @@ static void mtk_eint_chip_write_mask(const struct mtk_eint *eint,
}
}
static void mtk_eint_chip_read_mask(const struct mtk_eint *eint,
void __iomem *base, u32 *buf)
{
int port;
void __iomem *reg;
for (port = 0; port < eint->hw->ports; port++) {
reg = base + eint->regs->mask + (port << 2);
buf[port] = ~readl_relaxed(reg);
/* Mask is 0 when irq is enabled, and 1 when disabled. */
}
}
static int mtk_eint_irq_request_resources(struct irq_data *d)
{
struct mtk_eint *eint = irq_data_get_irq_chip_data(d);
@ -318,7 +309,7 @@ static void mtk_eint_irq_handler(struct irq_desc *desc)
struct irq_chip *chip = irq_desc_get_chip(desc);
struct mtk_eint *eint = irq_desc_get_handler_data(desc);
unsigned int status, eint_num;
int offset, index, virq;
int offset, mask_offset, index, virq;
void __iomem *reg = mtk_eint_get_offset(eint, 0, eint->regs->stat);
int dual_edge, start_level, curr_level;
@ -328,10 +319,24 @@ static void mtk_eint_irq_handler(struct irq_desc *desc)
status = readl(reg);
while (status) {
offset = __ffs(status);
mask_offset = eint_num >> 5;
index = eint_num + offset;
virq = irq_find_mapping(eint->domain, index);
status &= ~BIT(offset);
/*
* If we get an interrupt on pin that was only required
* for wake (but no real interrupt requested), mask the
* interrupt (as would mtk_eint_resume do anyway later
* in the resume sequence).
*/
if (eint->wake_mask[mask_offset] & BIT(offset) &&
!(eint->cur_mask[mask_offset] & BIT(offset))) {
writel_relaxed(BIT(offset), reg -
eint->regs->stat +
eint->regs->mask_set);
}
dual_edge = eint->dual_edge[index];
if (dual_edge) {
/*
@ -370,7 +375,6 @@ static void mtk_eint_irq_handler(struct irq_desc *desc)
int mtk_eint_do_suspend(struct mtk_eint *eint)
{
mtk_eint_chip_read_mask(eint, eint->base, eint->cur_mask);
mtk_eint_chip_write_mask(eint, eint->base, eint->wake_mask);
return 0;

8
drivers/pinctrl/pinctrl-mcp23s08.c
View file

@ -889,6 +889,10 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
if (ret < 0)
goto fail;
ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
if (ret < 0)
goto fail;
mcp->irq_controller =
device_property_read_bool(dev, "interrupt-controller");
if (mcp->irq && mcp->irq_controller) {
@ -930,10 +934,6 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
goto fail;
}
ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
if (ret < 0)
goto fail;
if (one_regmap_config) {
mcp->pinctrl_desc.name = devm_kasprintf(dev, GFP_KERNEL,
"mcp23xxx-pinctrl.%d", raw_chip_address);

2
drivers/s390/cio/qdio_setup.c
View file

@ -151,6 +151,7 @@ static int __qdio_allocate_qs(struct qdio_q **irq_ptr_qs, int nr_queues)
return -ENOMEM;
}
irq_ptr_qs[i] = q;
INIT_LIST_HEAD(&q->entry);
}
return 0;
}
@ -179,6 +180,7 @@ static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr,
q->mask = 1 << (31 - i);
q->nr = i;
q->handler = handler;
INIT_LIST_HEAD(&q->entry);
}
static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,

5
drivers/s390/cio/qdio_thinint.c
View file

@ -79,7 +79,6 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
mutex_lock(&tiq_list_lock);
list_add_rcu(&irq_ptr->input_qs[0]->entry, &tiq_list);
mutex_unlock(&tiq_list_lock);
xchg(irq_ptr->dsci, 1 << 7);
}
void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
@ -87,14 +86,14 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
struct qdio_q *q;
q = irq_ptr->input_qs[0];
/* if establish triggered an error */
if (!q || !q->entry.prev || !q->entry.next)
if (!q)
return;
mutex_lock(&tiq_list_lock);
list_del_rcu(&q->entry);
mutex_unlock(&tiq_list_lock);
synchronize_rcu();
INIT_LIST_HEAD(&q->entry);
}
static inline int has_multiple_inq_on_dsci(struct qdio_irq *irq_ptr)

4
fs/afs/callback.c
View file

@ -276,9 +276,9 @@ static void afs_break_one_callback(struct afs_server *server,
struct afs_super_info *as = AFS_FS_S(cbi->sb);
struct afs_volume *volume = as->volume;
write_lock(&volume->cb_break_lock);
write_lock(&volume->cb_v_break_lock);
volume->cb_v_break++;
write_unlock(&volume->cb_break_lock);
write_unlock(&volume->cb_v_break_lock);
} else {
data.volume = NULL;
data.fid = *fid;

2
fs/afs/internal.h
View file

@ -477,7 +477,7 @@ struct afs_volume {
unsigned int servers_seq; /* Incremented each time ->servers changes */
unsigned cb_v_break; /* Break-everything counter. */
rwlock_t cb_break_lock;
rwlock_t cb_v_break_lock;
afs_voltype_t type; /* type of volume */
short error;

1
fs/afs/volume.c
View file

@ -47,6 +47,7 @@ static struct afs_volume *afs_alloc_volume(struct afs_mount_params *params,
atomic_set(&volume->usage, 1);
INIT_LIST_HEAD(&volume->proc_link);
rwlock_init(&volume->servers_lock);
rwlock_init(&volume->cb_v_break_lock);
memcpy(volume->name, vldb->name, vldb->name_len + 1);
slist = afs_alloc_server_list(params->cell, params->key, vldb, type_mask);

1
include/linux/cpuhotplug.h
View file

@ -170,6 +170,7 @@ enum cpuhp_state {
CPUHP_AP_WATCHDOG_ONLINE,
CPUHP_AP_WORKQUEUE_ONLINE,
CPUHP_AP_RCUTREE_ONLINE,
CPUHP_AP_BASE_CACHEINFO_ONLINE,
CPUHP_AP_ONLINE_DYN,
CPUHP_AP_ONLINE_DYN_END = CPUHP_AP_ONLINE_DYN + 30,
CPUHP_AP_X86_HPET_ONLINE,

3
include/linux/kernel.h
View file

@ -118,7 +118,8 @@
#define DIV_ROUND_DOWN_ULL(ll, d) \
({ unsigned long long _tmp = (ll); do_div(_tmp, d); _tmp; })
#define DIV_ROUND_UP_ULL(ll, d) DIV_ROUND_DOWN_ULL((ll) + (d) - 1, (d))
#define DIV_ROUND_UP_ULL(ll, d) \
DIV_ROUND_DOWN_ULL((unsigned long long)(ll) + (d) - 1, (d))
#if BITS_PER_LONG == 32
# define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d)

22
include/uapi/linux/nilfs2_ondisk.h
View file

@ -29,7 +29,7 @@
#include <linux/types.h>
#include <linux/magic.h>
#include <asm/byteorder.h>
#define NILFS_INODE_BMAP_SIZE 7
@ -533,19 +533,19 @@ enum {
static inline void \
nilfs_checkpoint_set_##name(struct nilfs_checkpoint *cp) \
{ \
cp->cp_flags = cpu_to_le32(le32_to_cpu(cp->cp_flags) | \
cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) | \
(1UL << NILFS_CHECKPOINT_##flag)); \
} \
static inline void \
nilfs_checkpoint_clear_##name(struct nilfs_checkpoint *cp) \
{ \
cp->cp_flags = cpu_to_le32(le32_to_cpu(cp->cp_flags) & \
cp->cp_flags = __cpu_to_le32(__le32_to_cpu(cp->cp_flags) & \
~(1UL << NILFS_CHECKPOINT_##flag)); \
} \
static inline int \
nilfs_checkpoint_##name(const struct nilfs_checkpoint *cp) \
{ \
return !!(le32_to_cpu(cp->cp_flags) & \
return !!(__le32_to_cpu(cp->cp_flags) & \
(1UL << NILFS_CHECKPOINT_##flag)); \
}
@ -595,20 +595,20 @@ enum {
static inline void \
nilfs_segment_usage_set_##name(struct nilfs_segment_usage *su) \
{ \
su->su_flags = cpu_to_le32(le32_to_cpu(su->su_flags) | \
su->su_flags = __cpu_to_le32(__le32_to_cpu(su->su_flags) | \
(1UL << NILFS_SEGMENT_USAGE_##flag));\
} \
static inline void \
nilfs_segment_usage_clear_##name(struct nilfs_segment_usage *su) \
{ \
su->su_flags = \
cpu_to_le32(le32_to_cpu(su->su_flags) & \
__cpu_to_le32(__le32_to_cpu(su->su_flags) & \
~(1UL << NILFS_SEGMENT_USAGE_##flag)); \
} \
static inline int \
nilfs_segment_usage_##name(const struct nilfs_segment_usage *su) \
{ \
return !!(le32_to_cpu(su->su_flags) & \
return !!(__le32_to_cpu(su->su_flags) & \
(1UL << NILFS_SEGMENT_USAGE_##flag)); \
}
@ -619,15 +619,15 @@ NILFS_SEGMENT_USAGE_FNS(ERROR, error)
static inline void
nilfs_segment_usage_set_clean(struct nilfs_segment_usage *su)
{
su->su_lastmod = cpu_to_le64(0);
su->su_nblocks = cpu_to_le32(0);
su->su_flags = cpu_to_le32(0);
su->su_lastmod = __cpu_to_le64(0);
su->su_nblocks = __cpu_to_le32(0);
su->su_flags = __cpu_to_le32(0);
}
static inline int
nilfs_segment_usage_clean(const struct nilfs_segment_usage *su)
{
return !le32_to_cpu(su->su_flags);
return !__le32_to_cpu(su->su_flags);
}
/**

3
kernel/cpu.c
View file

@ -1932,6 +1932,9 @@ static ssize_t write_cpuhp_fail(struct device *dev,
if (ret)
return ret;
if (fail < CPUHP_OFFLINE || fail > CPUHP_ONLINE)
return -EINVAL;
/*
* Cannot fail STARTING/DYING callbacks.
*/

2
kernel/events/core.c
View file

@ -5911,7 +5911,7 @@ static void perf_sample_regs_user(struct perf_regs *regs_user,
if (user_mode(regs)) {
regs_user->abi = perf_reg_abi(current);
regs_user->regs = regs;
} else if (current->mm) {
} else if (!(current->flags & PF_KTHREAD)) {
perf_get_regs_user(regs_user, regs, regs_user_copy);
} else {
regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE;

6
kernel/irq/autoprobe.c
View file

@ -90,7 +90,7 @@ unsigned long probe_irq_on(void)
/* It triggered already - consider it spurious. */
if (!(desc->istate & IRQS_WAITING)) {
desc->istate &= ~IRQS_AUTODETECT;
irq_shutdown(desc);
irq_shutdown_and_deactivate(desc);
} else
if (i < 32)
mask |= 1 << i;
@ -127,7 +127,7 @@ unsigned int probe_irq_mask(unsigned long val)
mask |= 1 << i;
desc->istate &= ~IRQS_AUTODETECT;
irq_shutdown(desc);
irq_shutdown_and_deactivate(desc);
}
raw_spin_unlock_irq(&desc->lock);
}
@ -169,7 +169,7 @@ int probe_irq_off(unsigned long val)
nr_of_irqs++;
}
desc->istate &= ~IRQS_AUTODETECT;
irq_shutdown(desc);
irq_shutdown_and_deactivate(desc);
}
raw_spin_unlock_irq(&desc->lock);
}

6
kernel/irq/chip.c
View file

@ -314,6 +314,12 @@ void irq_shutdown(struct irq_desc *desc)
}
irq_state_clr_started(desc);
}
}
void irq_shutdown_and_deactivate(struct irq_desc *desc)
{
irq_shutdown(desc);
/*
* This must be called even if the interrupt was never started up,
* because the activation can happen before the interrupt is

2
kernel/irq/cpuhotplug.c
View file

@ -116,7 +116,7 @@ static bool migrate_one_irq(struct irq_desc *desc)
*/
if (irqd_affinity_is_managed(d)) {
irqd_set_managed_shutdown(d);
irq_shutdown(desc);
irq_shutdown_and_deactivate(desc);
return false;
}
affinity = cpu_online_mask;

5
kernel/irq/internals.h
View file

@ -80,6 +80,7 @@ extern int irq_activate_and_startup(struct irq_desc *desc, bool resend);
extern int irq_startup(struct irq_desc *desc, bool resend, bool force);
extern void irq_shutdown(struct irq_desc *desc);
extern void irq_shutdown_and_deactivate(struct irq_desc *desc);
extern void irq_enable(struct irq_desc *desc);
extern void irq_disable(struct irq_desc *desc);
extern void irq_percpu_enable(struct irq_desc *desc, unsigned int cpu);
@ -94,6 +95,10 @@ static inline void irq_mark_irq(unsigned int irq) { }
extern void irq_mark_irq(unsigned int irq);
#endif
extern int __irq_get_irqchip_state(struct irq_data *data,
enum irqchip_irq_state which,
bool *state);
extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
irqreturn_t __handle_irq_event_percpu(struct irq_desc *desc, unsigned int *flags);

88
kernel/irq/manage.c
View file

@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/random.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/sched/rt.h>
@ -34,8 +35,9 @@ static int __init setup_forced_irqthreads(char *arg)
early_param("threadirqs", setup_forced_irqthreads);
#endif
static void __synchronize_hardirq(struct irq_desc *desc)
static void __synchronize_hardirq(struct irq_desc *desc, bool sync_chip)
{
struct irq_data *irqd = irq_desc_get_irq_data(desc);
bool inprogress;
do {
@ -51,6 +53,20 @@ static void __synchronize_hardirq(struct irq_desc *desc)
/* Ok, that indicated we're done: double-check carefully. */
raw_spin_lock_irqsave(&desc->lock, flags);
inprogress = irqd_irq_inprogress(&desc->irq_data);
/*
* If requested and supported, check at the chip whether it
* is in flight at the hardware level, i.e. already pending
* in a CPU and waiting for service and acknowledge.
*/
if (!inprogress && sync_chip) {
/*
* Ignore the return code. inprogress is only updated
* when the chip supports it.
*/
__irq_get_irqchip_state(irqd, IRQCHIP_STATE_ACTIVE,
&inprogress);
}
raw_spin_unlock_irqrestore(&desc->lock, flags);
/* Oops, that failed? */
@ -73,13 +89,18 @@ static void __synchronize_hardirq(struct irq_desc *desc)
* Returns: false if a threaded handler is active.
*
* This function may be called - with care - from IRQ context.
*
* It does not check whether there is an interrupt in flight at the
* hardware level, but not serviced yet, as this might deadlock when
* called with interrupts disabled and the target CPU of the interrupt
* is the current CPU.
*/
bool synchronize_hardirq(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
if (desc) {
__synchronize_hardirq(desc);
__synchronize_hardirq(desc, false);
return !atomic_read(&desc->threads_active);
}
@ -95,14 +116,19 @@ EXPORT_SYMBOL(synchronize_hardirq);
* to complete before returning. If you use this function while
* holding a resource the IRQ handler may need you will deadlock.
*
* This function may be called - with care - from IRQ context.
* Can only be called from preemptible code as it might sleep when
* an interrupt thread is associated to @irq.
*
* It optionally makes sure (when the irq chip supports that method)
* that the interrupt is not pending in any CPU and waiting for
* service.
*/
void synchronize_irq(unsigned int irq)
{
struct irq_desc *desc = irq_to_desc(irq);
if (desc) {
__synchronize_hardirq(desc);
__synchronize_hardirq(desc, true);
/*
* We made sure that no hardirq handler is
* running. Now verify that no threaded handlers are
@ -1619,6 +1645,7 @@ static struct irqaction *__free_irq(struct irq_desc *desc, void *dev_id)
/* If this was the last handler, shut down the IRQ line: */
if (!desc->action) {
irq_settings_clr_disable_unlazy(desc);
/* Only shutdown. Deactivate after synchronize_hardirq() */
irq_shutdown(desc);
}
@ -1647,8 +1674,12 @@ static struct irqaction *__free_irq(struct irq_desc *desc, void *dev_id)
unregister_handler_proc(irq, action);
/* Make sure it's not being used on another CPU: */
synchronize_hardirq(irq);
/*
* Make sure it's not being used on another CPU and if the chip
* supports it also make sure that there is no (not yet serviced)
* interrupt in flight at the hardware level.
*/
__synchronize_hardirq(desc, true);
#ifdef CONFIG_DEBUG_SHIRQ
/*
@ -1688,6 +1719,14 @@ static struct irqaction *__free_irq(struct irq_desc *desc, void *dev_id)
* require it to deallocate resources over the slow bus.
*/
chip_bus_lock(desc);
/*
* There is no interrupt on the fly anymore. Deactivate it
* completely.
*/
raw_spin_lock_irqsave(&desc->lock, flags);
irq_domain_deactivate_irq(&desc->irq_data);
raw_spin_unlock_irqrestore(&desc->lock, flags);
irq_release_resources(desc);
chip_bus_sync_unlock(desc);
irq_remove_timings(desc);
@ -2173,6 +2212,28 @@ int __request_percpu_irq(unsigned int irq, irq_handler_t handler,
}
EXPORT_SYMBOL_GPL(__request_percpu_irq);
int __irq_get_irqchip_state(struct irq_data *data, enum irqchip_irq_state which,
bool *state)
{
struct irq_chip *chip;
int err = -EINVAL;
do {
chip = irq_data_get_irq_chip(data);
if (chip->irq_get_irqchip_state)
break;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
data = data->parent_data;
#else
data = NULL;
#endif
} while (data);
if (data)
err = chip->irq_get_irqchip_state(data, which, state);
return err;
}
/**
* irq_get_irqchip_state - returns the irqchip state of a interrupt.
* @irq: Interrupt line that is forwarded to a VM
@ -2191,7 +2252,6 @@ int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
{
struct irq_desc *desc;
struct irq_data *data;
struct irq_chip *chip;
unsigned long flags;
int err = -EINVAL;
@ -2201,19 +2261,7 @@ int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
data = irq_desc_get_irq_data(desc);
do {
chip = irq_data_get_irq_chip(data);
if (chip->irq_get_irqchip_state)
break;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
data = data->parent_data;
#else
data = NULL;
#endif
} while (data);
if (data)
err = chip->irq_get_irqchip_state(data, which, state);
err = __irq_get_irqchip_state(data, which, state);
irq_put_desc_busunlock(desc, flags);
return err;