i/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge remote-tracking branch 'common/android-4.9' into android-hikey-linaro-4.9-aosp

Browse Source
This commit is contained in:
Dmitry Shmidt
2017-03-15 14:46:26 -07:00
parent cb3d81d81d 80f190c3be
commit baaa45e234
291 changed files with 3490 additions and 1655 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/kernel-parameters.txt
+4
View File
@@ -1397,6 +1397,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
When zero, profiling data is discarded and associated
debugfs files are removed at module unload time.
goldfish [X86] Enable the goldfish android emulator platform.
Don't use this when you are not running on the
android emulator
gpt [EFI] Forces disk with valid GPT signature but
invalid Protective MBR to be treated as GPT. If the
primary GPT is corrupted, it enables the backup/alternate
Makefile
+1 -1
View File
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
SUBLEVEL = 12
SUBLEVEL = 15
EXTRAVERSION =
NAME = Roaring Lionus
arch/arm/boot/dts/at91-sama5d2_xplained.dts
+2
View File
@@ -148,6 +148,8 @@
uart1: serial@f8020000 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1_default>;
atmel,use-dma-rx;
atmel,use-dma-tx;
status = "okay";
};
arch/arm/boot/dts/at91-sama5d4_xplained.dts
+2
View File
@@ -110,6 +110,8 @@
};
usart3: serial@fc00c000 {
atmel,use-dma-rx;
atmel,use-dma-tx;
status = "okay";
};
arch/arm/include/asm/kvm_mmu.h
+1 -8
View File
@@ -150,18 +150,12 @@ static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu,
* and iterate over the range.
*/
bool need_flush = !vcpu_has_cache_enabled(vcpu) || ipa_uncached;
VM_BUG_ON(size & ~PAGE_MASK);
if (!need_flush && !icache_is_pipt())
goto vipt_cache;
while (size) {
void *va = kmap_atomic_pfn(pfn);
if (need_flush)
kvm_flush_dcache_to_poc(va, PAGE_SIZE);
kvm_flush_dcache_to_poc(va, PAGE_SIZE);
if (icache_is_pipt())
__cpuc_coherent_user_range((unsigned long)va,
@@ -173,7 +167,6 @@ static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu,
kunmap_atomic(va);
}
vipt_cache:
if (!icache_is_pipt() && !icache_is_vivt_asid_tagged()) {
/* any kind of VIPT cache */
__flush_icache_all();
arch/arm64/include/asm/hw_breakpoint.h
+5 -1
View File
@@ -77,7 +77,11 @@ static inline void decode_ctrl_reg(u32 reg,
/* Lengths */
#define ARM_BREAKPOINT_LEN_1 0x1
#define ARM_BREAKPOINT_LEN_2 0x3
#define ARM_BREAKPOINT_LEN_3 0x7
#define ARM_BREAKPOINT_LEN_4 0xf
#define ARM_BREAKPOINT_LEN_5 0x1f
#define ARM_BREAKPOINT_LEN_6 0x3f
#define ARM_BREAKPOINT_LEN_7 0x7f
#define ARM_BREAKPOINT_LEN_8 0xff
/* Kernel stepping */
@@ -119,7 +123,7 @@ struct perf_event;
struct pmu;
extern int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
int *gen_len, int *gen_type);
int *gen_len, int *gen_type, int *offset);
extern int arch_check_bp_in_kernelspace(struct perf_event *bp);
extern int arch_validate_hwbkpt_settings(struct perf_event *bp);
extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
arch/arm64/include/asm/kvm_mmu.h
+1 -2
View File
@@ -241,8 +241,7 @@ static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu,
{
void *va = page_address(pfn_to_page(pfn));
if (!vcpu_has_cache_enabled(vcpu) || ipa_uncached)
kvm_flush_dcache_to_poc(va, size);
kvm_flush_dcache_to_poc(va, size);
if (!icache_is_aliasing()) { /* PIPT */
flush_icache_range((unsigned long)va,
arch/arm64/kernel/cpufeature.c
+3 -3
View File
@@ -654,15 +654,15 @@ static u64 __raw_read_system_reg(u32 sys_id)
case SYS_ID_ISAR2_EL1: return read_cpuid(ID_ISAR2_EL1);
case SYS_ID_ISAR3_EL1: return read_cpuid(ID_ISAR3_EL1);
case SYS_ID_ISAR4_EL1: return read_cpuid(ID_ISAR4_EL1);
case SYS_ID_ISAR5_EL1: return read_cpuid(ID_ISAR4_EL1);
case SYS_ID_ISAR5_EL1: return read_cpuid(ID_ISAR5_EL1);
case SYS_MVFR0_EL1: return read_cpuid(MVFR0_EL1);
case SYS_MVFR1_EL1: return read_cpuid(MVFR1_EL1);
case SYS_MVFR2_EL1: return read_cpuid(MVFR2_EL1);
case SYS_ID_AA64PFR0_EL1: return read_cpuid(ID_AA64PFR0_EL1);
case SYS_ID_AA64PFR1_EL1: return read_cpuid(ID_AA64PFR0_EL1);
case SYS_ID_AA64PFR1_EL1: return read_cpuid(ID_AA64PFR1_EL1);
case SYS_ID_AA64DFR0_EL1: return read_cpuid(ID_AA64DFR0_EL1);
case SYS_ID_AA64DFR1_EL1: return read_cpuid(ID_AA64DFR0_EL1);
case SYS_ID_AA64DFR1_EL1: return read_cpuid(ID_AA64DFR1_EL1);
case SYS_ID_AA64MMFR0_EL1: return read_cpuid(ID_AA64MMFR0_EL1);
case SYS_ID_AA64MMFR1_EL1: return read_cpuid(ID_AA64MMFR1_EL1);
case SYS_ID_AA64MMFR2_EL1: return read_cpuid(ID_AA64MMFR2_EL1);
arch/arm64/kernel/hw_breakpoint.c
+116 -39
View File
@@ -317,9 +317,21 @@ static int get_hbp_len(u8 hbp_len)
case ARM_BREAKPOINT_LEN_2:
len_in_bytes = 2;
break;
case ARM_BREAKPOINT_LEN_3:
len_in_bytes = 3;
break;
case ARM_BREAKPOINT_LEN_4:
len_in_bytes = 4;
break;
case ARM_BREAKPOINT_LEN_5:
len_in_bytes = 5;
break;
case ARM_BREAKPOINT_LEN_6:
len_in_bytes = 6;
break;
case ARM_BREAKPOINT_LEN_7:
len_in_bytes = 7;
break;
case ARM_BREAKPOINT_LEN_8:
len_in_bytes = 8;
break;
@@ -349,7 +361,7 @@ int arch_check_bp_in_kernelspace(struct perf_event *bp)
* to generic breakpoint descriptions.
*/
int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
int *gen_len, int *gen_type)
int *gen_len, int *gen_type, int *offset)
{
/* Type */
switch (ctrl.type) {
@@ -369,17 +381,33 @@ int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
return -EINVAL;
}
if (!ctrl.len)
return -EINVAL;
*offset = __ffs(ctrl.len);
/* Len */
switch (ctrl.len) {
switch (ctrl.len >> *offset) {
case ARM_BREAKPOINT_LEN_1:
*gen_len = HW_BREAKPOINT_LEN_1;
break;
case ARM_BREAKPOINT_LEN_2:
*gen_len = HW_BREAKPOINT_LEN_2;
break;
case ARM_BREAKPOINT_LEN_3:
*gen_len = HW_BREAKPOINT_LEN_3;
break;
case ARM_BREAKPOINT_LEN_4:
*gen_len = HW_BREAKPOINT_LEN_4;
break;
case ARM_BREAKPOINT_LEN_5:
*gen_len = HW_BREAKPOINT_LEN_5;
break;
case ARM_BREAKPOINT_LEN_6:
*gen_len = HW_BREAKPOINT_LEN_6;
break;
case ARM_BREAKPOINT_LEN_7:
*gen_len = HW_BREAKPOINT_LEN_7;
break;
case ARM_BREAKPOINT_LEN_8:
*gen_len = HW_BREAKPOINT_LEN_8;
break;
@@ -423,9 +451,21 @@ static int arch_build_bp_info(struct perf_event *bp)
case HW_BREAKPOINT_LEN_2:
info->ctrl.len = ARM_BREAKPOINT_LEN_2;
break;
case HW_BREAKPOINT_LEN_3:
info->ctrl.len = ARM_BREAKPOINT_LEN_3;
break;
case HW_BREAKPOINT_LEN_4:
info->ctrl.len = ARM_BREAKPOINT_LEN_4;
break;
case HW_BREAKPOINT_LEN_5:
info->ctrl.len = ARM_BREAKPOINT_LEN_5;
break;
case HW_BREAKPOINT_LEN_6:
info->ctrl.len = ARM_BREAKPOINT_LEN_6;
break;
case HW_BREAKPOINT_LEN_7:
info->ctrl.len = ARM_BREAKPOINT_LEN_7;
break;
case HW_BREAKPOINT_LEN_8:
info->ctrl.len = ARM_BREAKPOINT_LEN_8;
break;
@@ -517,18 +557,17 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
default:
return -EINVAL;
}
info->address &= ~alignment_mask;
info->ctrl.len <<= offset;
} else {
if (info->ctrl.type == ARM_BREAKPOINT_EXECUTE)
alignment_mask = 0x3;
else
alignment_mask = 0x7;
if (info->address & alignment_mask)
return -EINVAL;
offset = info->address & alignment_mask;
}
info->address &= ~alignment_mask;
info->ctrl.len <<= offset;
/*
* Disallow per-task kernel breakpoints since these would
* complicate the stepping code.
@@ -661,12 +700,47 @@ unlock:
}
NOKPROBE_SYMBOL(breakpoint_handler);
/*
* Arm64 hardware does not always report a watchpoint hit address that matches
* one of the watchpoints set. It can also report an address "near" the
* watchpoint if a single instruction access both watched and unwatched
* addresses. There is no straight-forward way, short of disassembling the
* offending instruction, to map that address back to the watchpoint. This
* function computes the distance of the memory access from the watchpoint as a
* heuristic for the likelyhood that a given access triggered the watchpoint.
*
* See Section D2.10.5 "Determining the memory location that caused a Watchpoint
* exception" of ARMv8 Architecture Reference Manual for details.
*
* The function returns the distance of the address from the bytes watched by
* the watchpoint. In case of an exact match, it returns 0.
*/
static u64 get_distance_from_watchpoint(unsigned long addr, u64 val,
struct arch_hw_breakpoint_ctrl *ctrl)
{
u64 wp_low, wp_high;
u32 lens, lene;
lens = __ffs(ctrl->len);
lene = __fls(ctrl->len);
wp_low = val + lens;
wp_high = val + lene;
if (addr < wp_low)
return wp_low - addr;
else if (addr > wp_high)
return addr - wp_high;
else
return 0;
}
static int watchpoint_handler(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
{
int i, step = 0, *kernel_step, access;
int i, step = 0, *kernel_step, access, closest_match = 0;
u64 min_dist = -1, dist;
u32 ctrl_reg;
u64 val, alignment_mask;
u64 val;
struct perf_event *wp, **slots;
struct debug_info *debug_info;
struct arch_hw_breakpoint *info;
@@ -675,35 +749,15 @@ static int watchpoint_handler(unsigned long addr, unsigned int esr,
slots = this_cpu_ptr(wp_on_reg);
debug_info = &current->thread.debug;
/*
* Find all watchpoints that match the reported address. If no exact
* match is found. Attribute the hit to the closest watchpoint.
*/
rcu_read_lock();
for (i = 0; i < core_num_wrps; ++i) {
rcu_read_lock();
wp = slots[i];
if (wp == NULL)
goto unlock;
info = counter_arch_bp(wp);
/* AArch32 watchpoints are either 4 or 8 bytes aligned. */
if (is_compat_task()) {
if (info->ctrl.len == ARM_BREAKPOINT_LEN_8)
alignment_mask = 0x7;
else
alignment_mask = 0x3;
} else {
alignment_mask = 0x7;
}
/* Check if the watchpoint value matches. */
val = read_wb_reg(AARCH64_DBG_REG_WVR, i);
if (val != (addr & ~alignment_mask))
goto unlock;
/* Possible match, check the byte address select to confirm. */
ctrl_reg = read_wb_reg(AARCH64_DBG_REG_WCR, i);
decode_ctrl_reg(ctrl_reg, &ctrl);
if (!((1 << (addr & alignment_mask)) & ctrl.len))
goto unlock;
continue;
/*
* Check that the access type matches.
@@ -712,18 +766,41 @@ static int watchpoint_handler(unsigned long addr, unsigned int esr,
access = (esr & AARCH64_ESR_ACCESS_MASK) ? HW_BREAKPOINT_W :
HW_BREAKPOINT_R;
if (!(access & hw_breakpoint_type(wp)))
goto unlock;
continue;
/* Check if the watchpoint value and byte select match. */
val = read_wb_reg(AARCH64_DBG_REG_WVR, i);
ctrl_reg = read_wb_reg(AARCH64_DBG_REG_WCR, i);
decode_ctrl_reg(ctrl_reg, &ctrl);
dist = get_distance_from_watchpoint(addr, val, &ctrl);
if (dist < min_dist) {
min_dist = dist;
closest_match = i;
}
/* Is this an exact match? */
if (dist != 0)
continue;
info = counter_arch_bp(wp);
info->trigger = addr;
perf_bp_event(wp, regs);
/* Do we need to handle the stepping? */
if (is_default_overflow_handler(wp))
step = 1;
unlock:
rcu_read_unlock();
}
if (min_dist > 0 && min_dist != -1) {
/* No exact match found. */
wp = slots[closest_match];
info = counter_arch_bp(wp);
info->trigger = addr;
perf_bp_event(wp, regs);
/* Do we need to handle the stepping? */
if (is_default_overflow_handler(wp))
step = 1;
}
rcu_read_unlock();
if (!step)
return 0;
arch/arm64/kernel/ptrace.c
+4 -3
View File
@@ -327,13 +327,13 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type,
struct arch_hw_breakpoint_ctrl ctrl,
struct perf_event_attr *attr)
{
int err, len, type, disabled = !ctrl.enabled;
int err, len, type, offset, disabled = !ctrl.enabled;
attr->disabled = disabled;
if (disabled)
return 0;
err = arch_bp_generic_fields(ctrl, &len, &type);
err = arch_bp_generic_fields(ctrl, &len, &type, &offset);
if (err)
return err;
@@ -352,6 +352,7 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type,
attr->bp_len = len;
attr->bp_type = type;
attr->bp_addr += offset;
return 0;
}
@@ -404,7 +405,7 @@ static int ptrace_hbp_get_addr(unsigned int note_type,
if (IS_ERR(bp))
return PTR_ERR(bp);
*addr = bp ? bp->attr.bp_addr : 0;
*addr = bp ? counter_arch_bp(bp)->address : 0;
return 0;
}
arch/arm64/mm/dma-mapping.c
+8 -1
View File
@@ -352,6 +352,13 @@ static int __swiotlb_dma_supported(struct device *hwdev, u64 mask)
return 1;
}
static int __swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t addr)
{
if (swiotlb)
return swiotlb_dma_mapping_error(hwdev, addr);
return 0;
}
static struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_alloc,
.free = __dma_free,
@@ -366,7 +373,7 @@ static struct dma_map_ops swiotlb_dma_ops = {
.sync_sg_for_cpu = __swiotlb_sync_sg_for_cpu,
.sync_sg_for_device = __swiotlb_sync_sg_for_device,
.dma_supported = __swiotlb_dma_supported,
.mapping_error = swiotlb_dma_mapping_error,
.mapping_error = __swiotlb_dma_mapping_error,
};
static int __init atomic_pool_init(void)
arch/mips/bcm47xx/buttons.c
+8 -2
View File
@@ -17,6 +17,12 @@
.active_low = 1, \
}
#define BCM47XX_GPIO_KEY_H(_gpio, _code) \
{ \
.code = _code, \
.gpio = _gpio, \
}
/* Asus */
static const struct gpio_keys_button
@@ -79,8 +85,8 @@ bcm47xx_buttons_asus_wl500gpv2[] __initconst = {
static const struct gpio_keys_button
bcm47xx_buttons_asus_wl500w[] __initconst = {
BCM47XX_GPIO_KEY(6, KEY_RESTART),
BCM47XX_GPIO_KEY(7, KEY_WPS_BUTTON),
BCM47XX_GPIO_KEY_H(6, KEY_RESTART),
BCM47XX_GPIO_KEY_H(7, KEY_WPS_BUTTON),
};
static const struct gpio_keys_button
arch/mips/cavium-octeon/octeon-memcpy.S
+12 -8
View File
@@ -208,18 +208,18 @@ EXC( STORE t2, UNIT(6)(dst), s_exc_p10u)
ADD src, src, 16*NBYTES
EXC( STORE t3, UNIT(7)(dst), s_exc_p9u)
ADD dst, dst, 16*NBYTES
EXC( LOAD t0, UNIT(-8)(src), l_exc_copy)
EXC( LOAD t1, UNIT(-7)(src), l_exc_copy)
EXC( LOAD t2, UNIT(-6)(src), l_exc_copy)
EXC( LOAD t3, UNIT(-5)(src), l_exc_copy)
EXC( LOAD t0, UNIT(-8)(src), l_exc_copy_rewind16)
EXC( LOAD t1, UNIT(-7)(src), l_exc_copy_rewind16)
EXC( LOAD t2, UNIT(-6)(src), l_exc_copy_rewind16)
EXC( LOAD t3, UNIT(-5)(src), l_exc_copy_rewind16)
EXC( STORE t0, UNIT(-8)(dst), s_exc_p8u)
EXC( STORE t1, UNIT(-7)(dst), s_exc_p7u)
EXC( STORE t2, UNIT(-6)(dst), s_exc_p6u)
EXC( STORE t3, UNIT(-5)(dst), s_exc_p5u)
EXC( LOAD t0, UNIT(-4)(src), l_exc_copy)
EXC( LOAD t1, UNIT(-3)(src), l_exc_copy)
EXC( LOAD t2, UNIT(-2)(src), l_exc_copy)
EXC( LOAD t3, UNIT(-1)(src), l_exc_copy)
EXC( LOAD t0, UNIT(-4)(src), l_exc_copy_rewind16)
EXC( LOAD t1, UNIT(-3)(src), l_exc_copy_rewind16)
EXC( LOAD t2, UNIT(-2)(src), l_exc_copy_rewind16)
EXC( LOAD t3, UNIT(-1)(src), l_exc_copy_rewind16)
EXC( STORE t0, UNIT(-4)(dst), s_exc_p4u)
EXC( STORE t1, UNIT(-3)(dst), s_exc_p3u)
EXC( STORE t2, UNIT(-2)(dst), s_exc_p2u)
@@ -383,6 +383,10 @@ done:
nop
END(memcpy)
l_exc_copy_rewind16:
/* Rewind src and dst by 16*NBYTES for l_exc_copy */
SUB src, src, 16*NBYTES
SUB dst, dst, 16*NBYTES
l_exc_copy:
/*
* Copy bytes from src until faulting load address (or until a
arch/mips/include/asm/checksum.h
+2
View File
@@ -186,7 +186,9 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
" daddu %0, %4 \n"
" dsll32 $1, %0, 0 \n"
" daddu %0, $1 \n"
" sltu $1, %0, $1 \n"
" dsra32 %0, %0, 0 \n"
" addu %0, $1 \n"
#endif
" .set pop"
: "=r" (sum)
arch/mips/kernel/process.c
+98 -53
View File
@@ -195,11 +195,9 @@ struct mips_frame_info {
#define J_TARGET(pc,target) \
(((unsigned long)(pc) & 0xf0000000) | ((target) << 2))
static inline int is_ra_save_ins(union mips_instruction *ip)
static inline int is_ra_save_ins(union mips_instruction *ip, int *poff)
{
#ifdef CONFIG_CPU_MICROMIPS
union mips_instruction mmi;
/*
* swsp ra,offset
* swm16 reglist,offset(sp)
@@ -209,29 +207,71 @@ static inline int is_ra_save_ins(union mips_instruction *ip)
*
* microMIPS is way more fun...
*/
if (mm_insn_16bit(ip->halfword[0])) {
mmi.word = (ip->halfword[0] << 16);
return (mmi.mm16_r5_format.opcode == mm_swsp16_op &&
mmi.mm16_r5_format.rt == 31) ||
(mmi.mm16_m_format.opcode == mm_pool16c_op &&
mmi.mm16_m_format.func == mm_swm16_op);
if (mm_insn_16bit(ip->halfword[1])) {
switch (ip->mm16_r5_format.opcode) {
case mm_swsp16_op:
if (ip->mm16_r5_format.rt != 31)
return 0;
*poff = ip->mm16_r5_format.simmediate;
*poff = (*poff << 2) / sizeof(ulong);
return 1;
case mm_pool16c_op:
switch (ip->mm16_m_format.func) {
case mm_swm16_op:
*poff = ip->mm16_m_format.imm;
*poff += 1 + ip->mm16_m_format.rlist;
*poff = (*poff << 2) / sizeof(ulong);
return 1;
default:
return 0;
}
default:
return 0;
}
}
else {
mmi.halfword[0] = ip->halfword[1];
mmi.halfword[1] = ip->halfword[0];
return (mmi.mm_m_format.opcode == mm_pool32b_op &&
mmi.mm_m_format.rd > 9 &&
mmi.mm_m_format.base == 29 &&
mmi.mm_m_format.func == mm_swm32_func) ||
(mmi.i_format.opcode == mm_sw32_op &&
mmi.i_format.rs == 29 &&
mmi.i_format.rt == 31);
switch (ip->i_format.opcode) {
case mm_sw32_op:
if (ip->i_format.rs != 29)
return 0;
if (ip->i_format.rt != 31)
return 0;
*poff = ip->i_format.simmediate / sizeof(ulong);
return 1;
case mm_pool32b_op:
switch (ip->mm_m_format.func) {
case mm_swm32_func:
if (ip->mm_m_format.rd < 0x10)
return 0;
if (ip->mm_m_format.base != 29)
return 0;
*poff = ip->mm_m_format.simmediate;
*poff += (ip->mm_m_format.rd & 0xf) * sizeof(u32);
*poff /= sizeof(ulong);
return 1;
default:
return 0;
}
default:
return 0;
}
#else
/* sw / sd $ra, offset($sp) */
return (ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op) &&
ip->i_format.rs == 29 &&
ip->i_format.rt == 31;
if ((ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op) &&
ip->i_format.rs == 29 && ip->i_format.rt == 31) {
*poff = ip->i_format.simmediate / sizeof(ulong);
return 1;
}
return 0;
#endif
}
@@ -246,13 +286,16 @@ static inline int is_jump_ins(union mips_instruction *ip)
*
* microMIPS is kind of more fun...
*/
union mips_instruction mmi;
if (mm_insn_16bit(ip->halfword[1])) {
if ((ip->mm16_r5_format.opcode == mm_pool16c_op &&
(ip->mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op))
return 1;
return 0;
}
mmi.word = (ip->halfword[0] << 16);
if ((mmi.mm16_r5_format.opcode == mm_pool16c_op &&
(mmi.mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op) ||
ip->j_format.opcode == mm_jal32_op)
if (ip->j_format.opcode == mm_j32_op)
return 1;
if (ip->j_format.opcode == mm_jal32_op)
return 1;
if (ip->r_format.opcode != mm_pool32a_op ||
ip->r_format.func != mm_pool32axf_op)
@@ -280,15 +323,13 @@ static inline int is_sp_move_ins(union mips_instruction *ip)
*
* microMIPS is not more fun...
*/
if (mm_insn_16bit(ip->halfword[0])) {
union mips_instruction mmi;
mmi.word = (ip->halfword[0] << 16);
return (mmi.mm16_r3_format.opcode == mm_pool16d_op &&
mmi.mm16_r3_format.simmediate && mm_addiusp_func) ||
(mmi.mm16_r5_format.opcode == mm_pool16d_op &&
mmi.mm16_r5_format.rt == 29);
if (mm_insn_16bit(ip->halfword[1])) {
return (ip->mm16_r3_format.opcode == mm_pool16d_op &&
ip->mm16_r3_format.simmediate && mm_addiusp_func) ||
(ip->mm16_r5_format.opcode == mm_pool16d_op &&
ip->mm16_r5_format.rt == 29);
}
return ip->mm_i_format.opcode == mm_addiu32_op &&
ip->mm_i_format.rt == 29 && ip->mm_i_format.rs == 29;
#else
@@ -303,30 +344,36 @@ static inline int is_sp_move_ins(union mips_instruction *ip)
static int get_frame_info(struct mips_frame_info *info)
{
#ifdef CONFIG_CPU_MICROMIPS
union mips_instruction *ip = (void *) (((char *) info->func) - 1);
#else
union mips_instruction *ip = info->func;
#endif
unsigned max_insns = info->func_size / sizeof(union mips_instruction);
unsigned i;
bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
union mips_instruction insn, *ip, *ip_end;
const unsigned int max_insns = 128;
unsigned int i;
info->pc_offset = -1;
info->frame_size = 0;
ip = (void *)msk_isa16_mode((ulong)info->func);
if (!ip)
goto err;
if (max_insns == 0)
max_insns = 128U; /* unknown function size */
max_insns = min(128U, max_insns);
ip_end = (void *)ip + info->func_size;
for (i = 0; i < max_insns; i++, ip++) {
for (i = 0; i < max_insns && ip < ip_end; i++, ip++) {
if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
insn.halfword[0] = 0;
insn.halfword[1] = ip->halfword[0];
} else if (is_mmips) {
insn.halfword[0] = ip->halfword[1];
insn.halfword[1] = ip->halfword[0];
} else {
insn.word = ip->word;
}
if (is_jump_ins(ip))
if (is_jump_ins(&insn))
break;
if (!info->frame_size) {
if (is_sp_move_ins(ip))
if (is_sp_move_ins(&insn))
{
#ifdef CONFIG_CPU_MICROMIPS
if (mm_insn_16bit(ip->halfword[0]))
@@ -349,11 +396,9 @@ static int get_frame_info(struct mips_frame_info *info)
}
continue;
}
if (info->pc_offset == -1 && is_ra_save_ins(ip)) {
info->pc_offset =
ip->i_format.simmediate / sizeof(long);
if (info->pc_offset == -1 &&
is_ra_save_ins(&insn, &info->pc_offset))
break;
}
}
if (info->frame_size && info->pc_offset >= 0) /* nested */
return 0;
arch/mips/lantiq/xway/sysctrl.c
+4 -4
View File
@@ -545,7 +545,7 @@ void __init ltq_soc_init(void)
clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
clkdev_add_pmu("1a800000.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH | PMU_PPE_DP);
clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
} else if (of_machine_is_compatible("lantiq,ar10")) {
@@ -553,7 +553,7 @@ void __init ltq_soc_init(void)
ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH |
clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH |
PMU_PPE_DP | PMU_PPE_TC);
clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
@@ -575,11 +575,11 @@ void __init ltq_soc_init(void)
clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
clkdev_add_pmu("1e108000.eth", NULL, 1, 0,
clkdev_add_pmu("1e108000.eth", NULL, 0, 0,
PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
PMU_PPE_QSB | PMU_PPE_TOP);
clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
clkdev_add_pmu("1f203000.rcu", "gphy", 0, 0, PMU_GPHY);
clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
arch/mips/mm/sc-ip22.c
+34 -20
View File
@@ -31,26 +31,40 @@ static inline void indy_sc_wipe(unsigned long first, unsigned long last)
unsigned long tmp;
__asm__ __volatile__(
".set\tpush\t\t\t# indy_sc_wipe\n\t"
".set\tnoreorder\n\t"
".set\tmips3\n\t"
".set\tnoat\n\t"
"mfc0\t%2, $12\n\t"
"li\t$1, 0x80\t\t\t# Go 64 bit\n\t"
"mtc0\t$1, $12\n\t"
"dli\t$1, 0x9000000080000000\n\t"
"or\t%0, $1\t\t\t# first line to flush\n\t"
"or\t%1, $1\t\t\t# last line to flush\n\t"
".set\tat\n\t"
"1:\tsw\t$0, 0(%0)\n\t"
"bne\t%0, %1, 1b\n\t"
" daddu\t%0, 32\n\t"
"mtc0\t%2, $12\t\t\t# Back to 32 bit\n\t"
"nop; nop; nop; nop;\n\t"
".set\tpop"
" .set push # indy_sc_wipe \n"
" .set noreorder \n"
" .set mips3 \n"
" .set noat \n"
" mfc0 %2, $12 \n"
" li $1, 0x80 # Go 64 bit \n"
" mtc0 $1, $12 \n"
" \n"
" # \n"
" # Open code a dli $1, 0x9000000080000000 \n"
" # \n"
" # Required because binutils 2.25 will happily accept \n"
" # 64 bit instructions in .set mips3 mode but puke on \n"
" # 64 bit constants when generating 32 bit ELF \n"
" # \n"
" lui $1,0x9000 \n"
" dsll $1,$1,0x10 \n"
" ori $1,$1,0x8000 \n"
" dsll $1,$1,0x10 \n"
" \n"
" or %0, $1 # first line to flush \n"
" or %1, $1 # last line to flush \n"
" .set at \n"
" \n"
"1: sw $0, 0(%0) \n"
" bne %0, %1, 1b \n"
" daddu %0, 32 \n"
" \n"
" mtc0 %2, $12 # Back to 32 bit \n"
" nop # pipeline hazard \n"
" nop \n"
" nop \n"
" nop \n"
" .set pop \n"
: "=r" (first), "=r" (last), "=&r" (tmp)
: "0" (first), "1" (last));
}
arch/mips/pic32/pic32mzda/Makefile
+2 -3
View File
@@ -2,8 +2,7 @@
# Joshua Henderson, <joshua.henderson@microchip.com>
# Copyright (C) 2015 Microchip Technology, Inc. All rights reserved.
#
obj-y := init.o time.o config.o
obj-y := config.o early_clk.o init.o time.o
obj-$(CONFIG_EARLY_PRINTK) += early_console.o \
early_pin.o \
early_clk.o
early_pin.o
arch/powerpc/include/asm/mmu.h
+1
View File
@@ -136,6 +136,7 @@ enum {
MMU_FTR_NO_SLBIE_B | MMU_FTR_16M_PAGE | MMU_FTR_TLBIEL |
MMU_FTR_LOCKLESS_TLBIE | MMU_FTR_CI_LARGE_PAGE |
MMU_FTR_1T_SEGMENT | MMU_FTR_TLBIE_CROP_VA |
MMU_FTR_KERNEL_RO |
#ifdef CONFIG_PPC_RADIX_MMU
MMU_FTR_TYPE_RADIX |
#endif
arch/powerpc/kernel/cpu_setup_power.S
+4
View File
@@ -100,6 +100,8 @@ _GLOBAL(__setup_cpu_power9)
mfspr r3,SPRN_LPCR
LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE)
or r3, r3, r4
LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR)
andc r3, r3, r4
bl __init_LPCR
bl __init_HFSCR
bl __init_tlb_power9
@@ -120,6 +122,8 @@ _GLOBAL(__restore_cpu_power9)
mfspr r3,SPRN_LPCR
LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE)
or r3, r3, r4
LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR)
andc r3, r3, r4
bl __init_LPCR
bl __init_HFSCR
bl __init_tlb_power9
arch/powerpc/kernel/hw_breakpoint.c
+3 -1
View File
@@ -228,8 +228,10 @@ int hw_breakpoint_handler(struct die_args *args)
rcu_read_lock();
bp = __this_cpu_read(bp_per_reg);
if (!bp)
if (!bp) {
rc = NOTIFY_DONE;
goto out;
}
info = counter_arch_bp(bp);
/*
arch/s390/include/asm/processor.h
+2 -1
View File
@@ -89,7 +89,8 @@ extern void execve_tail(void);
* User space process size: 2GB for 31 bit, 4TB or 8PT for 64 bit.
*/
#define TASK_SIZE_OF(tsk) ((tsk)->mm->context.asce_limit)
#define TASK_SIZE_OF(tsk) ((tsk)->mm ? \
(tsk)->mm->context.asce_limit : TASK_MAX_SIZE)
#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \
(1UL << 30) : (1UL << 41))
#define TASK_SIZE TASK_SIZE_OF(current)
arch/s390/kernel/crash_dump.c
+5 -1
View File
@@ -329,7 +329,11 @@ static void *nt_init_name(void *buf, Elf64_Word type, void *desc, int d_len,
static inline void *nt_init(void *buf, Elf64_Word type, void *desc, int d_len)
{
return nt_init_name(buf, type, desc, d_len, KEXEC_CORE_NOTE_NAME);
const char *note_name = "LINUX";
if (type == NT_PRPSINFO || type == NT_PRSTATUS || type == NT_PRFPREG)
note_name = KEXEC_CORE_NOTE_NAME;
return nt_init_name(buf, type, desc, d_len, note_name);
}
/*
arch/s390/kernel/setup.c
+4 -4
View File
@@ -819,10 +819,10 @@ static void __init setup_randomness(void)
{
struct sysinfo_3_2_2 *vmms;
vmms = (struct sysinfo_3_2_2 *) alloc_page(GFP_KERNEL);
if (vmms && stsi(vmms, 3, 2, 2) == 0 && vmms->count)
add_device_randomness(&vmms, vmms->count);
free_page((unsigned long) vmms);
vmms = (struct sysinfo_3_2_2 *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
if (stsi(vmms, 3, 2, 2) == 0 && vmms->count)
add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count);
memblock_free((unsigned long) vmms, PAGE_SIZE);
}
/*
arch/s390/kvm/kvm-s390.c
+3
View File
@@ -442,6 +442,9 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
struct kvm_memory_slot *memslot;
int is_dirty = 0;
if (kvm_is_ucontrol(kvm))
return -EINVAL;
mutex_lock(&kvm->slots_lock);
r = -EINVAL;
arch/x86/include/asm/pkeys.h
+9 -6
View File
@@ -46,6 +46,15 @@ extern int __arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
static inline
bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey)
{
/*
* "Allocated" pkeys are those that have been returned
* from pkey_alloc(). pkey 0 is special, and never
* returned from pkey_alloc().
*/
if (pkey <= 0)
return false;
if (pkey >= arch_max_pkey())
return false;
return mm_pkey_allocation_map(mm) & (1U << pkey);
}
@@ -82,12 +91,6 @@ int mm_pkey_alloc(struct mm_struct *mm)
static inline
int mm_pkey_free(struct mm_struct *mm, int pkey)
{
/*
* pkey 0 is special, always allocated and can never
* be freed.
*/
if (!pkey)
return -EINVAL;
if (!mm_pkey_is_allocated(mm, pkey))
return -EINVAL;
arch/x86/include/asm/tlbflush.h
+1 -1
View File
@@ -188,7 +188,7 @@ static inline void __native_flush_tlb_single(unsigned long addr)
static inline void __flush_tlb_all(void)
{
if (static_cpu_has(X86_FEATURE_PGE))
if (boot_cpu_has(X86_FEATURE_PGE))
__flush_tlb_global();
else
__flush_tlb();
arch/x86/kvm/vmx.c
+2 -2
View File
@@ -3693,7 +3693,7 @@ static void fix_rmode_seg(int seg, struct kvm_segment *save)
}
vmcs_write16(sf->selector, var.selector);
vmcs_write32(sf->base, var.base);
vmcs_writel(sf->base, var.base);
vmcs_write32(sf->limit, var.limit);
vmcs_write32(sf->ar_bytes, vmx_segment_access_rights(&var));
}
@@ -8202,7 +8202,7 @@ static void kvm_flush_pml_buffers(struct kvm *kvm)
static void vmx_dump_sel(char *name, uint32_t sel)
{
pr_err("%s sel=0x%04x, attr=0x%05x, limit=0x%08x, base=0x%016lx\n",
name, vmcs_read32(sel),
name, vmcs_read16(sel),
vmcs_read32(sel + GUEST_ES_AR_BYTES - GUEST_ES_SELECTOR),
vmcs_read32(sel + GUEST_ES_LIMIT - GUEST_ES_SELECTOR),
vmcs_readl(sel + GUEST_ES_BASE - GUEST_ES_SELECTOR));
arch/x86/mm/gup.c
+6 -2
View File
@@ -120,6 +120,11 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
return 0;
}
if (!pte_allows_gup(pte_val(pte), write)) {
pte_unmap(ptep);
return 0;
}
if (pte_devmap(pte)) {
pgmap = get_dev_pagemap(pte_pfn(pte), pgmap);
if (unlikely(!pgmap)) {
@@ -127,8 +132,7 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
pte_unmap(ptep);
return 0;
}
} else if (!pte_allows_gup(pte_val(pte), write) ||
pte_special(pte)) {
} else if (pte_special(pte)) {
pte_unmap(ptep);
return 0;
}
arch/x86/platform/goldfish/goldfish.c
+13 -1
View File
@@ -42,10 +42,22 @@ static struct resource goldfish_pdev_bus_resources[] = {
}
};
static bool goldfish_enable __initdata;
static int __init goldfish_setup(char *str)
{
goldfish_enable = true;
return 0;
}
__setup("goldfish", goldfish_setup);
static int __init goldfish_init(void)
{
if (!goldfish_enable)
return -ENODEV;
platform_device_register_simple("goldfish_pdev_bus", -1,
goldfish_pdev_bus_resources, 2);
goldfish_pdev_bus_resources, 2);
return 0;
}
device_initcall(goldfish_init);
arch/xtensa/kernel/setup.c
+2 -2
View File
@@ -133,6 +133,8 @@ static int __init parse_tag_initrd(const bp_tag_t* tag)
__tagtable(BP_TAG_INITRD, parse_tag_initrd);
#endif /* CONFIG_BLK_DEV_INITRD */
#ifdef CONFIG_OF
static int __init parse_tag_fdt(const bp_tag_t *tag)
@@ -145,8 +147,6 @@ __tagtable(BP_TAG_FDT, parse_tag_fdt);
#endif /* CONFIG_OF */
#endif /* CONFIG_BLK_DEV_INITRD */
static int __init parse_tag_cmdline(const bp_tag_t* tag)
{
strlcpy(command_line, (char *)(tag->data), COMMAND_LINE_SIZE);
crypto/testmgr.h
+1 -1
View File
@@ -22813,7 +22813,7 @@ static struct aead_testvec aes_ccm_enc_tv_template[] = {
"\x09\x75\x9a\x9b\x3c\x9b\x27\x39",
.klen = 32,
.iv = "\x03\xf9\xd9\x4e\x63\xb5\x3d\x9d"
"\x43\xf6\x1e\x50",
"\x43\xf6\x1e\x50\0\0\0\0",
.assoc = "\x57\xf5\x6b\x8b\x57\x5c\x3d\x3b"
"\x13\x02\x01\x0c\x83\x4c\x96\x35"
"\x8e\xd6\x39\xcf\x7d\x14\x9b\x94"
drivers/acpi/nfit/core.c
+15 -1
View File
@@ -1603,7 +1603,7 @@ static size_t sizeof_nfit_set_info(int num_mappings)
+ num_mappings * sizeof(struct nfit_set_info_map);
}
static int cmp_map(const void *m0, const void *m1)
static int cmp_map_compat(const void *m0, const void *m1)
{
const struct nfit_set_info_map *map0 = m0;
const struct nfit_set_info_map *map1 = m1;
@@ -1612,6 +1612,14 @@ static int cmp_map(const void *m0, const void *m1)
sizeof(u64));
}
static int cmp_map(const void *m0, const void *m1)
{
const struct nfit_set_info_map *map0 = m0;
const struct nfit_set_info_map *map1 = m1;
return map0->region_offset - map1->region_offset;
}
/* Retrieve the nth entry referencing this spa */
static struct acpi_nfit_memory_map *memdev_from_spa(
struct acpi_nfit_desc *acpi_desc, u16 range_index, int n)
@@ -1667,6 +1675,12 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc,
sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
cmp_map, NULL);
nd_set->cookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
/* support namespaces created with the wrong sort order */
sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
cmp_map_compat, NULL);
nd_set->altcookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
ndr_desc->nd_set = nd_set;
devm_kfree(dev, info);
drivers/bcma/main.c
+4
View File
@@ -633,8 +633,11 @@ static int bcma_device_probe(struct device *dev)
drv);
int err = 0;
get_device(dev);
if (adrv->probe)
err = adrv->probe(core);
if (err)
put_device(dev);
return err;
}
@@ -647,6 +650,7 @@ static int bcma_device_remove(struct device *dev)
if (adrv->remove)
adrv->remove(core);
put_device(dev);
return 0;
}
drivers/block/loop.c
+20 -12
View File
@@ -1097,9 +1097,12 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
if ((unsigned int) info->lo_encrypt_key_size > LO_KEY_SIZE)
return -EINVAL;
/* I/O need to be drained during transfer transition */
blk_mq_freeze_queue(lo->lo_queue);
err = loop_release_xfer(lo);
if (err)
return err;
goto exit;
if (info->lo_encrypt_type) {
unsigned int type = info->lo_encrypt_type;
@@ -1114,12 +1117,14 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
err = loop_init_xfer(lo, xfer, info);
if (err)
return err;
goto exit;
if (lo->lo_offset != info->lo_offset ||
lo->lo_sizelimit != info->lo_sizelimit)
if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit))
return -EFBIG;
if (figure_loop_size(lo, info->lo_offset, info->lo_sizelimit)) {
err = -EFBIG;
goto exit;
}
loop_config_discard(lo);
@@ -1137,13 +1142,6 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
(info->lo_flags & LO_FLAGS_AUTOCLEAR))
lo->lo_flags ^= LO_FLAGS_AUTOCLEAR;
if ((info->lo_flags & LO_FLAGS_PARTSCAN) &&
!(lo->lo_flags & LO_FLAGS_PARTSCAN)) {
lo->lo_flags |= LO_FLAGS_PARTSCAN;
lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
loop_reread_partitions(lo, lo->lo_device);
}
lo->lo_encrypt_key_size = info->lo_encrypt_key_size;
lo->lo_init[0] = info->lo_init[0];
lo->lo_init[1] = info->lo_init[1];
@@ -1156,7 +1154,17 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
/* update dio if lo_offset or transfer is changed */
__loop_update_dio(lo, lo->use_dio);
return 0;
exit:
blk_mq_unfreeze_queue(lo->lo_queue);
if (!err && (info->lo_flags & LO_FLAGS_PARTSCAN) &&
!(lo->lo_flags & LO_FLAGS_PARTSCAN)) {
lo->lo_flags |= LO_FLAGS_PARTSCAN;
lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
loop_reread_partitions(lo, lo->lo_device);
}
return err;
}
static int
drivers/bluetooth/ath3k.c
+2
View File
@@ -94,6 +94,7 @@ static const struct usb_device_id ath3k_table[] = {
{ USB_DEVICE(0x04CA, 0x300f) },
{ USB_DEVICE(0x04CA, 0x3010) },
{ USB_DEVICE(0x04CA, 0x3014) },
{ USB_DEVICE(0x04CA, 0x3018) },
{ USB_DEVICE(0x0930, 0x0219) },
{ USB_DEVICE(0x0930, 0x021c) },
{ USB_DEVICE(0x0930, 0x0220) },
@@ -162,6 +163,7 @@ static const struct usb_device_id ath3k_blist_tbl[] = {
{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
drivers/bluetooth/btusb.c
+1
View File
@@ -209,6 +209,7 @@ static const struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
drivers/char/tpm/tpm_tis.c
+1 -1
View File
@@ -421,7 +421,7 @@ err_pnp:
acpi_bus_unregister_driver(&tis_acpi_driver);
err_acpi:
#endif
platform_device_unregister(force_pdev);
platform_driver_unregister(&tis_drv);
err_platform:
if (force_pdev)
platform_device_unregister(force_pdev);
drivers/devfreq/devfreq.c
+29 -5
View File
@@ -130,7 +130,7 @@ static void devfreq_set_freq_table(struct devfreq *devfreq)
* @devfreq: the devfreq instance
* @freq: the update target frequency
*/
static int devfreq_update_status(struct devfreq *devfreq, unsigned long freq)
int devfreq_update_status(struct devfreq *devfreq, unsigned long freq)
{
int lev, prev_lev, ret = 0;
unsigned long cur_time;
@@ -166,6 +166,7 @@ out:
devfreq->last_stat_updated = cur_time;
return ret;
}
EXPORT_SYMBOL(devfreq_update_status);
/**
* find_devfreq_governor() - find devfreq governor from name
@@ -939,6 +940,9 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr,
if (df->governor == governor) {
ret = 0;
goto out;
} else if (df->governor->immutable || governor->immutable) {
ret = -EINVAL;
goto out;
}
if (df->governor) {
@@ -968,13 +972,33 @@ static ssize_t available_governors_show(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct devfreq_governor *tmp_governor;
struct devfreq *df = to_devfreq(d);
ssize_t count = 0;
mutex_lock(&devfreq_list_lock);
list_for_each_entry(tmp_governor, &devfreq_governor_list, node)
count += scnprintf(&buf[count], (PAGE_SIZE - count - 2),
"%s ", tmp_governor->name);
/*
* The devfreq with immutable governor (e.g., passive) shows
* only own governor.
*/
if (df->governor->immutable) {
count = scnprintf(&buf[count], DEVFREQ_NAME_LEN,
"%s ", df->governor_name);
/*
* The devfreq device shows the registered governor except for
* immutable governors such as passive governor .
*/
} else {
struct devfreq_governor *governor;
list_for_each_entry(governor, &devfreq_governor_list, node) {
if (governor->immutable)
continue;
count += scnprintf(&buf[count], (PAGE_SIZE - count - 2),
"%s ", governor->name);
}
}
mutex_unlock(&devfreq_list_lock);
/* Truncate the trailing space */
drivers/devfreq/governor.h
+2
View File
@@ -38,4 +38,6 @@ extern void devfreq_interval_update(struct devfreq *devfreq,
extern int devfreq_add_governor(struct devfreq_governor *governor);
extern int devfreq_remove_governor(struct devfreq_governor *governor);
extern int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
#endif /* _GOVERNOR_H */
drivers/devfreq/governor_passive.c
+6
View File
@@ -112,6 +112,11 @@ static int update_devfreq_passive(struct devfreq *devfreq, unsigned long freq)
if (ret < 0)
goto out;
if (devfreq->profile->freq_table
&& (devfreq_update_status(devfreq, freq)))
dev_err(&devfreq->dev,
"Couldn't update frequency transition information.\n");
devfreq->previous_freq = freq;
out:
@@ -179,6 +184,7 @@ static int devfreq_passive_event_handler(struct devfreq *devfreq,
static struct devfreq_governor devfreq_passive = {
.name = "passive",
.immutable = 1,
.get_target_freq = devfreq_passive_get_target_freq,
.event_handler = devfreq_passive_event_handler,
};
drivers/dma/imx-sdma.c
+9 -4
View File
@@ -298,6 +298,7 @@ struct sdma_engine;
* @event_id1 for channels that use 2 events
* @word_size peripheral access size
* @buf_tail ID of the buffer that was processed
* @buf_ptail ID of the previous buffer that was processed
* @num_bd max NUM_BD. number of descriptors currently handling
*/
struct sdma_channel {
@@ -309,6 +310,7 @@ struct sdma_channel {
unsigned int event_id1;
enum dma_slave_buswidth word_size;
unsigned int buf_tail;
unsigned int buf_ptail;
unsigned int num_bd;
unsigned int period_len;
struct sdma_buffer_descriptor *bd;
@@ -700,6 +702,8 @@ static void sdma_update_channel_loop(struct sdma_channel *sdmac)
sdmac->chn_real_count = bd->mode.count;
bd->mode.status |= BD_DONE;
bd->mode.count = sdmac->period_len;
sdmac->buf_ptail = sdmac->buf_tail;
sdmac->buf_tail = (sdmac->buf_tail + 1) % sdmac->num_bd;
/*
* The callback is called from the interrupt context in order
@@ -710,9 +714,6 @@ static void sdma_update_channel_loop(struct sdma_channel *sdmac)
dmaengine_desc_get_callback_invoke(&sdmac->desc, NULL);
sdmac->buf_tail++;
sdmac->buf_tail %= sdmac->num_bd;
if (error)
sdmac->status = old_status;
}
@@ -1186,6 +1187,8 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
sdmac->flags = 0;
sdmac->buf_tail = 0;
sdmac->buf_ptail = 0;
sdmac->chn_real_count = 0;
dev_dbg(sdma->dev, "setting up %d entries for channel %d.\n",
sg_len, channel);
@@ -1288,6 +1291,8 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
sdmac->status = DMA_IN_PROGRESS;
sdmac->buf_tail = 0;
sdmac->buf_ptail = 0;
sdmac->chn_real_count = 0;
sdmac->period_len = period_len;
sdmac->flags |= IMX_DMA_SG_LOOP;
@@ -1385,7 +1390,7 @@ static enum dma_status sdma_tx_status(struct dma_chan *chan,
u32 residue;
if (sdmac->flags & IMX_DMA_SG_LOOP)
residue = (sdmac->num_bd - sdmac->buf_tail) *
residue = (sdmac->num_bd - sdmac->buf_ptail) *
sdmac->period_len - sdmac->chn_real_count;
else
residue = sdmac->chn_count - sdmac->chn_real_count;
drivers/dma/ipu/ipu_irq.c
+1 -1
View File
@@ -272,7 +272,7 @@ static void ipu_irq_handler(struct irq_desc *desc)
u32 status;
int i, line;
for (i = IPU_IRQ_NR_FN_BANKS; i < IPU_IRQ_NR_BANKS; i++) {
for (i = 0; i < IPU_IRQ_NR_BANKS; i++) {
struct ipu_irq_bank *bank = irq_bank + i;
raw_spin_lock(&bank_lock);
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+6
View File
@@ -3814,9 +3814,15 @@ static void dce_v11_0_encoder_add(struct amdgpu_device *adev,
default:
encoder->possible_crtcs = 0x3;
break;
case 3:
encoder->possible_crtcs = 0x7;
break;
case 4:
encoder->possible_crtcs = 0xf;
break;
case 5:
encoder->possible_crtcs = 0x1f;
break;
case 6:
encoder->possible_crtcs = 0x3f;
break;
drivers/gpu/drm/ast/ast_post.c
+38 -10
View File
@@ -58,13 +58,9 @@ bool ast_is_vga_enabled(struct drm_device *dev)
/* TODO 1180 */
} else {
ch = ast_io_read8(ast, AST_IO_VGA_ENABLE_PORT);
if (ch) {
ast_open_key(ast);
ch = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xff);
return ch & 0x04;
}
return !!(ch & 0x01);
}
return 0;
return false;
}
static const u8 extreginfo[] = { 0x0f, 0x04, 0x1c, 0xff };
@@ -375,8 +371,8 @@ void ast_post_gpu(struct drm_device *dev)
pci_write_config_dword(ast->dev->pdev, 0x04, reg);
ast_enable_vga(dev);
ast_enable_mmio(dev);
ast_open_key(ast);
ast_enable_mmio(dev);
ast_set_def_ext_reg(dev);
if (ast->chip == AST2300 || ast->chip == AST2400)
@@ -1630,12 +1626,44 @@ static void ast_init_dram_2300(struct drm_device *dev)
temp |= 0x73;
ast_write32(ast, 0x12008, temp);
param.dram_freq = 396;
param.dram_type = AST_DDR3;
temp = ast_mindwm(ast, 0x1e6e2070);
if (temp & 0x01000000)
param.dram_type = AST_DDR2;
param.dram_chipid = ast->dram_type;
param.dram_freq = ast->mclk;
param.vram_size = ast->vram_size;
switch (temp & 0x18000000) {
case 0:
param.dram_chipid = AST_DRAM_512Mx16;
break;
default:
case 0x08000000:
param.dram_chipid = AST_DRAM_1Gx16;
break;
case 0x10000000:
param.dram_chipid = AST_DRAM_2Gx16;
break;
case 0x18000000:
param.dram_chipid = AST_DRAM_4Gx16;
break;
}
switch (temp & 0x0c) {
default:
case 0x00:
param.vram_size = AST_VIDMEM_SIZE_8M;
break;
case 0x04:
param.vram_size = AST_VIDMEM_SIZE_16M;
break;
case 0x08:
param.vram_size = AST_VIDMEM_SIZE_32M;
break;
case 0x0c:
param.vram_size = AST_VIDMEM_SIZE_64M;
break;
}
if (param.dram_type == AST_DDR3) {
get_ddr3_info(ast, &param);
drivers/gpu/drm/drm_atomic_helper.c
+1 -1
View File
@@ -362,7 +362,7 @@ mode_fixup(struct drm_atomic_state *state)
struct drm_connector *connector;
struct drm_connector_state *conn_state;
int i;
bool ret;
int ret;
for_each_crtc_in_state(state, crtc, crtc_state, i) {
if (!crtc_state->mode_changed &&
drivers/gpu/drm/drm_edid.c
+3
View File
@@ -145,6 +145,9 @@ static struct edid_quirk {
/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
/* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
{ "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
};
/*
drivers/gpu/drm/drm_fb_helper.c
+3
View File
@@ -848,6 +848,9 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
if (!drm_fbdev_emulation)
return;
cancel_work_sync(&fb_helper->resume_work);
cancel_work_sync(&fb_helper->dirty_work);
if (!list_empty(&fb_helper->kernel_fb_list)) {
list_del(&fb_helper->kernel_fb_list);
if (list_empty(&kernel_fb_helper_list)) {
drivers/gpu/drm/i915/i915_gem_stolen.c
+5
View File
@@ -415,6 +415,11 @@ int i915_gem_init_stolen(struct drm_device *dev)
mutex_init(&dev_priv->mm.stolen_lock);
if (intel_vgpu_active(dev_priv)) {
DRM_INFO("iGVT-g active, disabling use of stolen memory\n");
return 0;
}
#ifdef CONFIG_INTEL_IOMMU
if (intel_iommu_gfx_mapped && INTEL_INFO(dev)->gen < 8) {
DRM_INFO("DMAR active, disabling use of stolen memory\n");
drivers/gpu/drm/i915/intel_dp.c
+3 -3
View File
@@ -2832,6 +2832,9 @@ static void vlv_detach_power_sequencer(struct intel_dp *intel_dp)
enum pipe pipe = intel_dp->pps_pipe;
i915_reg_t pp_on_reg = PP_ON_DELAYS(pipe);
if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
return;
edp_panel_vdd_off_sync(intel_dp);
/*
@@ -2859,9 +2862,6 @@ static void vlv_steal_power_sequencer(struct drm_device *dev,
lockdep_assert_held(&dev_priv->pps_mutex);
if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
return;
for_each_intel_encoder(dev, encoder) {
struct intel_dp *intel_dp;
enum port port;
drivers/gpu/drm/i915/intel_opregion.c
+12 -1
View File
@@ -1031,7 +1031,18 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
opregion->vbt_size = vbt_size;
} else {
vbt = base + OPREGION_VBT_OFFSET;
vbt_size = OPREGION_ASLE_EXT_OFFSET - OPREGION_VBT_OFFSET;
/*
* The VBT specification says that if the ASLE ext
* mailbox is not used its area is reserved, but
* on some CHT boards the VBT extends into the
* ASLE ext area. Allow this even though it is
* against the spec, so we do not end up rejecting
* the VBT on those boards (and end up not finding the
* LCD panel because of this).
*/
vbt_size = (mboxes & MBOX_ASLE_EXT) ?
OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE;
vbt_size -= OPREGION_VBT_OFFSET;
if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (Mailbox #4)\n");
opregion->vbt = vbt;
drivers/gpu/drm/imx/imx-tve.c
+4 -3
View File
@@ -98,6 +98,8 @@
/* TVE_TST_MODE_REG */
#define TVE_TVDAC_TEST_MODE_MASK (0x7 << 0)
#define IMX_TVE_DAC_VOLTAGE 2750000
enum {
TVE_MODE_TVOUT,
TVE_MODE_VGA,
@@ -628,9 +630,8 @@ static int imx_tve_bind(struct device *dev, struct device *master, void *data)
tve->dac_reg = devm_regulator_get(dev, "dac");
if (!IS_ERR(tve->dac_reg)) {
ret = regulator_set_voltage(tve->dac_reg, 2750000, 2750000);
if (ret)
return ret;
if (regulator_get_voltage(tve->dac_reg) != IMX_TVE_DAC_VOLTAGE)
dev_warn(dev, "dac voltage is not %d uV\n", IMX_TVE_DAC_VOLTAGE);
ret = regulator_enable(tve->dac_reg);
if (ret)
return ret;
drivers/gpu/drm/ttm/ttm_bo.c
+2 -2
View File
@@ -1654,7 +1654,6 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
struct ttm_buffer_object *bo;
int ret = -EBUSY;
int put_count;
uint32_t swap_placement = (TTM_PL_FLAG_CACHED | TTM_PL_FLAG_SYSTEM);
spin_lock(&glob->lru_lock);
list_for_each_entry(bo, &glob->swap_lru, swap) {
@@ -1685,7 +1684,8 @@ static int ttm_bo_swapout(struct ttm_mem_shrink *shrink)
* Move to system cached
*/
if ((bo->mem.placement & swap_placement) != swap_placement) {
if (bo->mem.mem_type != TTM_PL_SYSTEM ||
bo->ttm->caching_state != tt_cached) {
struct ttm_mem_reg evict_mem;
evict_mem = bo->mem;
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+10 -1
View File
@@ -199,9 +199,14 @@ static const struct drm_ioctl_desc vmw_ioctls[] = {
VMW_IOCTL_DEF(VMW_PRESENT_READBACK,
vmw_present_readback_ioctl,
DRM_MASTER | DRM_AUTH),
/*
* The permissions of the below ioctl are overridden in
* vmw_generic_ioctl(). We require either
* DRM_MASTER or capable(CAP_SYS_ADMIN).
*/
VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT,
vmw_kms_update_layout_ioctl,
DRM_MASTER | DRM_CONTROL_ALLOW),
DRM_RENDER_ALLOW),
VMW_IOCTL_DEF(VMW_CREATE_SHADER,
vmw_shader_define_ioctl,
DRM_AUTH | DRM_RENDER_ALLOW),
@@ -1125,6 +1130,10 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd,
return (long) vmw_execbuf_ioctl(dev, arg, file_priv,
_IOC_SIZE(cmd));
} else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) {
if (!drm_is_current_master(file_priv) &&
!capable(CAP_SYS_ADMIN))
return -EACCES;
}
if (unlikely(ioctl->cmd != cmd))
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+2 -2
View File
@@ -41,9 +41,9 @@
#include <drm/ttm/ttm_module.h>
#include "vmwgfx_fence.h"
#define VMWGFX_DRIVER_DATE "20160210"
#define VMWGFX_DRIVER_DATE "20170221"
#define VMWGFX_DRIVER_MAJOR 2
#define VMWGFX_DRIVER_MINOR 11
#define VMWGFX_DRIVER_MINOR 12
#define VMWGFX_DRIVER_PATCHLEVEL 0
#define VMWGFX_FILE_PAGE_OFFSET 0x00100000
#define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
drivers/hv/channel.c
+27 -8
View File
@@ -157,6 +157,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
}
init_completion(&open_info->waitevent);
open_info->waiting_channel = newchannel;
open_msg = (struct vmbus_channel_open_channel *)open_info->msg;
open_msg->header.msgtype = CHANNELMSG_OPENCHANNEL;
@@ -181,7 +182,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
ret = vmbus_post_msg(open_msg,
sizeof(struct vmbus_channel_open_channel));
sizeof(struct vmbus_channel_open_channel), true);
if (ret != 0) {
err = ret;
@@ -194,6 +195,11 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
list_del(&open_info->msglistentry);
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
if (newchannel->rescind) {
err = -ENODEV;
goto error_free_gpadl;
}
if (open_info->response.open_result.status) {
err = -EAGAIN;
goto error_free_gpadl;
@@ -233,7 +239,7 @@ int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
conn_msg.guest_endpoint_id = *shv_guest_servie_id;
conn_msg.host_service_id = *shv_host_servie_id;
return vmbus_post_msg(&conn_msg, sizeof(conn_msg));
return vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);
}
EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);
@@ -405,6 +411,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
return ret;
init_completion(&msginfo->waitevent);
msginfo->waiting_channel = channel;
gpadlmsg = (struct vmbus_channel_gpadl_header *)msginfo->msg;
gpadlmsg->header.msgtype = CHANNELMSG_GPADL_HEADER;
@@ -419,7 +426,7 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
ret = vmbus_post_msg(gpadlmsg, msginfo->msgsize -
sizeof(*msginfo));
sizeof(*msginfo), true);
if (ret != 0)
goto cleanup;
@@ -433,14 +440,19 @@ int vmbus_establish_gpadl(struct vmbus_channel *channel, void *kbuffer,
gpadl_body->gpadl = next_gpadl_handle;
ret = vmbus_post_msg(gpadl_body,
submsginfo->msgsize -
sizeof(*submsginfo));
submsginfo->msgsize - sizeof(*submsginfo),
true);
if (ret != 0)
goto cleanup;
}
wait_for_completion(&msginfo->waitevent);
if (channel->rescind) {
ret = -ENODEV;
goto cleanup;
}
/* At this point, we received the gpadl created msg */
*gpadl_handle = gpadlmsg->gpadl;
@@ -474,6 +486,7 @@ int vmbus_teardown_gpadl(struct vmbus_channel *channel, u32 gpadl_handle)
return -ENOMEM;
init_completion(&info->waitevent);
info->waiting_channel = channel;
msg = (struct vmbus_channel_gpadl_teardown *)info->msg;
@@ -485,14 +498,19 @@ int vmbus_teardown_gpadl(struct vmbus_channel *channel, u32 gpadl_handle)
list_add_tail(&info->msglistentry,
&vmbus_connection.chn_msg_list);
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
ret = vmbus_post_msg(msg,
sizeof(struct vmbus_channel_gpadl_teardown));
ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_gpadl_teardown),
true);
if (ret)
goto post_msg_err;
wait_for_completion(&info->waitevent);
if (channel->rescind) {
ret = -ENODEV;
goto post_msg_err;
}
post_msg_err:
spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
list_del(&info->msglistentry);
@@ -557,7 +575,8 @@ static int vmbus_close_internal(struct vmbus_channel *channel)
msg->header.msgtype = CHANNELMSG_CLOSECHANNEL;
msg->child_relid = channel->offermsg.child_relid;
ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_close_channel));
ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_close_channel),
true);
if (ret) {
pr_err("Close failed: close post msg return is %d\n", ret);
drivers/hv/channel_mgmt.c
+31 -4
View File
@@ -147,6 +147,29 @@ static const struct {
{ HV_RDV_GUID },
};
/*
* The rescinded channel may be blocked waiting for a response from the host;
* take care of that.
*/
static void vmbus_rescind_cleanup(struct vmbus_channel *channel)
{
struct vmbus_channel_msginfo *msginfo;
unsigned long flags;
spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
list_for_each_entry(msginfo, &vmbus_connection.chn_msg_list,
msglistentry) {
if (msginfo->waiting_channel == channel) {
complete(&msginfo->waitevent);
break;
}
}
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
}
static bool is_unsupported_vmbus_devs(const uuid_le *guid)
{
int i;
@@ -321,7 +344,8 @@ static void vmbus_release_relid(u32 relid)
memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
msg.child_relid = relid;
msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released));
vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released),
true);
}
void hv_event_tasklet_disable(struct vmbus_channel *channel)
@@ -728,7 +752,8 @@ void vmbus_initiate_unload(bool crash)
init_completion(&vmbus_connection.unload_event);
memset(&hdr, 0, sizeof(struct vmbus_channel_message_header));
hdr.msgtype = CHANNELMSG_UNLOAD;
vmbus_post_msg(&hdr, sizeof(struct vmbus_channel_message_header));
vmbus_post_msg(&hdr, sizeof(struct vmbus_channel_message_header),
!crash);
/*
* vmbus_initiate_unload() is also called on crash and the crash can be
@@ -823,6 +848,8 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
channel->rescind = true;
spin_unlock_irqrestore(&channel->lock, flags);
vmbus_rescind_cleanup(channel);
if (channel->device_obj) {
if (channel->chn_rescind_callback) {
channel->chn_rescind_callback(channel);
@@ -1116,8 +1143,8 @@ int vmbus_request_offers(void)
msg->msgtype = CHANNELMSG_REQUESTOFFERS;
ret = vmbus_post_msg(msg,
sizeof(struct vmbus_channel_message_header));
ret = vmbus_post_msg(msg, sizeof(struct vmbus_channel_message_header),
true);
if (ret != 0) {
pr_err("Unable to request offers - %d\n", ret);
drivers/hv/connection.c
+12 -5
View File
@@ -110,7 +110,8 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo,
spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
ret = vmbus_post_msg(msg,
sizeof(struct vmbus_channel_initiate_contact));
sizeof(struct vmbus_channel_initiate_contact),
true);
if (ret != 0) {
spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
list_del(&msginfo->msglistentry);
@@ -434,7 +435,7 @@ void vmbus_on_event(unsigned long data)
/*
* vmbus_post_msg - Send a msg on the vmbus's message connection
*/
int vmbus_post_msg(void *buffer, size_t buflen)
int vmbus_post_msg(void *buffer, size_t buflen, bool can_sleep)
{
union hv_connection_id conn_id;
int ret = 0;
@@ -449,7 +450,7 @@ int vmbus_post_msg(void *buffer, size_t buflen)
* insufficient resources. Retry the operation a couple of
* times before giving up.
*/
while (retries < 20) {
while (retries < 100) {
ret = hv_post_message(conn_id, 1, buffer, buflen);
switch (ret) {
@@ -472,8 +473,14 @@ int vmbus_post_msg(void *buffer, size_t buflen)
}
retries++;
udelay(usec);
if (usec < 2048)
if (can_sleep && usec > 1000)
msleep(usec / 1000);
else if (usec < MAX_UDELAY_MS * 1000)
udelay(usec);
else
mdelay(usec / 1000);
if (usec < 256000)
usec *= 2;
}
return ret;
drivers/hv/hv.c
+8 -7
View File
@@ -220,7 +220,7 @@ int hv_init(void)
/* See if the hypercall page is already set */
rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_RX);
if (!virtaddr)
goto cleanup;
@@ -309,9 +309,10 @@ void hv_cleanup(bool crash)
hypercall_msr.as_uint64 = 0;
wrmsrl(HV_X64_MSR_REFERENCE_TSC, hypercall_msr.as_uint64);
if (!crash)
if (!crash) {
vfree(hv_context.tsc_page);
hv_context.tsc_page = NULL;
hv_context.tsc_page = NULL;
}
}
#endif
}
@@ -411,7 +412,7 @@ int hv_synic_alloc(void)
goto err;
}
for_each_online_cpu(cpu) {
for_each_present_cpu(cpu) {
hv_context.event_dpc[cpu] = kmalloc(size, GFP_ATOMIC);
if (hv_context.event_dpc[cpu] == NULL) {
pr_err("Unable to allocate event dpc\n");
@@ -457,6 +458,8 @@ int hv_synic_alloc(void)
pr_err("Unable to allocate post msg page\n");
goto err;
}
INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
}
return 0;
@@ -482,7 +485,7 @@ void hv_synic_free(void)
int cpu;
kfree(hv_context.hv_numa_map);
for_each_online_cpu(cpu)
for_each_present_cpu(cpu)
hv_synic_free_cpu(cpu);
}
@@ -552,8 +555,6 @@ void hv_synic_init(void *arg)
rdmsrl(HV_X64_MSR_VP_INDEX, vp_index);
hv_context.vp_index[cpu] = (u32)vp_index;
INIT_LIST_HEAD(&hv_context.percpu_list[cpu]);
/*
* Register the per-cpu clockevent source.
*/
drivers/hv/hv_fcopy.c
+4
View File
@@ -61,6 +61,7 @@ static DECLARE_WORK(fcopy_send_work, fcopy_send_data);
static const char fcopy_devname[] = "vmbus/hv_fcopy";
static u8 *recv_buffer;
static struct hvutil_transport *hvt;
static struct completion release_event;
/*
* This state maintains the version number registered by the daemon.
*/
@@ -317,6 +318,7 @@ static void fcopy_on_reset(void)
if (cancel_delayed_work_sync(&fcopy_timeout_work))
fcopy_respond_to_host(HV_E_FAIL);
complete(&release_event);
}
int hv_fcopy_init(struct hv_util_service *srv)
@@ -324,6 +326,7 @@ int hv_fcopy_init(struct hv_util_service *srv)
recv_buffer = srv->recv_buffer;
fcopy_transaction.recv_channel = srv->channel;
init_completion(&release_event);
/*
* When this driver loads, the user level daemon that
* processes the host requests may not yet be running.
@@ -345,4 +348,5 @@ void hv_fcopy_deinit(void)
fcopy_transaction.state = HVUTIL_DEVICE_DYING;
cancel_delayed_work_sync(&fcopy_timeout_work);
hvutil_transport_destroy(hvt);
wait_for_completion(&release_event);
}
drivers/hv/hv_kvp.c
+4
View File
@@ -88,6 +88,7 @@ static DECLARE_WORK(kvp_sendkey_work, kvp_send_key);
static const char kvp_devname[] = "vmbus/hv_kvp";
static u8 *recv_buffer;
static struct hvutil_transport *hvt;
static struct completion release_event;
/*
* Register the kernel component with the user-level daemon.
* As part of this registration, pass the LIC version number.
@@ -716,6 +717,7 @@ static void kvp_on_reset(void)
if (cancel_delayed_work_sync(&kvp_timeout_work))
kvp_respond_to_host(NULL, HV_E_FAIL);
kvp_transaction.state = HVUTIL_DEVICE_INIT;
complete(&release_event);
}
int
@@ -724,6 +726,7 @@ hv_kvp_init(struct hv_util_service *srv)
recv_buffer = srv->recv_buffer;
kvp_transaction.recv_channel = srv->channel;
init_completion(&release_event);
/*
* When this driver loads, the user level daemon that
* processes the host requests may not yet be running.
@@ -747,4 +750,5 @@ void hv_kvp_deinit(void)
cancel_delayed_work_sync(&kvp_timeout_work);
cancel_work_sync(&kvp_sendkey_work);
hvutil_transport_destroy(hvt);
wait_for_completion(&release_event);
}
drivers/hv/hv_snapshot.c
+4
View File
@@ -66,6 +66,7 @@ static int dm_reg_value;
static const char vss_devname[] = "vmbus/hv_vss";
static __u8 *recv_buffer;
static struct hvutil_transport *hvt;
static struct completion release_event;
static void vss_timeout_func(struct work_struct *dummy);
static void vss_handle_request(struct work_struct *dummy);
@@ -330,11 +331,13 @@ static void vss_on_reset(void)
if (cancel_delayed_work_sync(&vss_timeout_work))
vss_respond_to_host(HV_E_FAIL);
vss_transaction.state = HVUTIL_DEVICE_INIT;
complete(&release_event);
}
int
hv_vss_init(struct hv_util_service *srv)
{
init_completion(&release_event);
if (vmbus_proto_version < VERSION_WIN8_1) {
pr_warn("Integration service 'Backup (volume snapshot)'"
" not supported on this host version.\n");
@@ -365,4 +368,5 @@ void hv_vss_deinit(void)
cancel_delayed_work_sync(&vss_timeout_work);
cancel_work_sync(&vss_handle_request_work);
hvutil_transport_destroy(hvt);
wait_for_completion(&release_event);
}
drivers/hv/hyperv_vmbus.h
+1 -1
View File
@@ -683,7 +683,7 @@ void vmbus_free_channels(void);
int vmbus_connect(void);
void vmbus_disconnect(void);
int vmbus_post_msg(void *buffer, size_t buflen);
int vmbus_post_msg(void *buffer, size_t buflen, bool can_sleep);
void vmbus_on_event(unsigned long data);
void vmbus_on_msg_dpc(unsigned long data);
drivers/hv/ring_buffer.c
+7
View File
@@ -298,6 +298,9 @@ int hv_ringbuffer_write(struct vmbus_channel *channel,
unsigned long flags = 0;
struct hv_ring_buffer_info *outring_info = &channel->outbound;
if (channel->rescind)
return -ENODEV;
for (i = 0; i < kv_count; i++)
totalbytes_towrite += kv_list[i].iov_len;
@@ -350,6 +353,10 @@ int hv_ringbuffer_write(struct vmbus_channel *channel,
spin_unlock_irqrestore(&outring_info->ring_lock, flags);
hv_signal_on_write(old_write, channel, kick_q);
if (channel->rescind)
return -ENODEV;
return 0;
}
drivers/hwmon/it87.c
+26 -13
View File
@@ -1300,25 +1300,35 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
data->fan_main_ctrl);
} else {
u8 ctrl;
/* No on/off mode, set maximum pwm value */
data->pwm_duty[nr] = pwm_to_reg(data, 0xff);
it87_write_value(data, IT87_REG_PWM_DUTY[nr],
data->pwm_duty[nr]);
/* and set manual mode */
data->pwm_ctrl[nr] = has_newer_autopwm(data) ?
data->pwm_temp_map[nr] :
data->pwm_duty[nr];
it87_write_value(data, IT87_REG_PWM[nr],
data->pwm_ctrl[nr]);
if (has_newer_autopwm(data)) {
ctrl = (data->pwm_ctrl[nr] & 0x7c) |
data->pwm_temp_map[nr];
} else {
ctrl = data->pwm_duty[nr];
}
data->pwm_ctrl[nr] = ctrl;
it87_write_value(data, IT87_REG_PWM[nr], ctrl);
}
} else {
if (val == 1) /* Manual mode */
data->pwm_ctrl[nr] = has_newer_autopwm(data) ?
data->pwm_temp_map[nr] :
data->pwm_duty[nr];
else /* Automatic mode */
data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
it87_write_value(data, IT87_REG_PWM[nr], data->pwm_ctrl[nr]);
u8 ctrl;
if (has_newer_autopwm(data)) {
ctrl = (data->pwm_ctrl[nr] & 0x7c) |
data->pwm_temp_map[nr];
if (val != 1)
ctrl |= 0x80;
} else {
ctrl = (val == 1 ? data->pwm_duty[nr] : 0x80);
}
data->pwm_ctrl[nr] = ctrl;
it87_write_value(data, IT87_REG_PWM[nr], ctrl);
if (data->type != it8603 && nr < 3) {
/* set SmartGuardian mode */
@@ -1344,6 +1354,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
return -EINVAL;
mutex_lock(&data->update_lock);
it87_update_pwm_ctrl(data, nr);
if (has_newer_autopwm(data)) {
/*
* If we are in automatic mode, the PWM duty cycle register
@@ -1456,13 +1467,15 @@ static ssize_t set_pwm_temp_map(struct device *dev,
}
mutex_lock(&data->update_lock);
it87_update_pwm_ctrl(data, nr);
data->pwm_temp_map[nr] = reg;
/*
* If we are in automatic mode, write the temp mapping immediately;
* otherwise, just store it for later use.
*/
if (data->pwm_ctrl[nr] & 0x80) {
data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
data->pwm_ctrl[nr] = (data->pwm_ctrl[nr] & 0xfc) |
data->pwm_temp_map[nr];
it87_write_value(data, IT87_REG_PWM[nr], data->pwm_ctrl[nr]);
}
mutex_unlock(&data->update_lock);
drivers/hwtracing/coresight/coresight-stm.c
+1 -1
View File
@@ -356,7 +356,7 @@ static void stm_generic_unlink(struct stm_data *stm_data,
if (!drvdata || !drvdata->csdev)
return;
stm_disable(drvdata->csdev, NULL);
coresight_disable(drvdata->csdev);
}
static phys_addr_t
drivers/iio/pressure/mpl115.c
+1
View File
@@ -137,6 +137,7 @@ static const struct iio_chan_spec mpl115_channels[] = {
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
.info_mask_shared_by_type =
BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE),
},
};
drivers/iio/pressure/mpl3115.c
+2 -2
View File
@@ -182,7 +182,7 @@ static const struct iio_chan_spec mpl3115_channels[] = {
{
.type = IIO_PRESSURE,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
BIT(IIO_CHAN_INFO_SCALE),
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
.scan_index = 0,
.scan_type = {
.sign = 'u',
@@ -195,7 +195,7 @@ static const struct iio_chan_spec mpl3115_channels[] = {
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
BIT(IIO_CHAN_INFO_SCALE),
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
.scan_index = 1,
.scan_type = {
.sign = 's',
drivers/infiniband/core/cma.c
+3
View File
@@ -3540,6 +3540,9 @@ static int cma_accept_iw(struct rdma_id_private *id_priv,
struct iw_cm_conn_param iw_param;
int ret;
if (!conn_param)
return -EINVAL;
ret = cma_modify_qp_rtr(id_priv, conn_param);
if (ret)
return ret;
drivers/infiniband/hw/mlx5/srq.c
+3 -8
View File
@@ -165,8 +165,6 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
int err;
int i;
struct mlx5_wqe_srq_next_seg *next;
int page_shift;
int npages;
err = mlx5_db_alloc(dev->mdev, &srq->db);
if (err) {
@@ -179,7 +177,6 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
err = -ENOMEM;
goto err_db;
}
page_shift = srq->buf.page_shift;
srq->head = 0;
srq->tail = srq->msrq.max - 1;
@@ -191,10 +188,8 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
cpu_to_be16((i + 1) & (srq->msrq.max - 1));
}
npages = DIV_ROUND_UP(srq->buf.npages, 1 << (page_shift - PAGE_SHIFT));
mlx5_ib_dbg(dev, "buf_size %d, page_shift %d, npages %d, calc npages %d\n",
buf_size, page_shift, srq->buf.npages, npages);
in->pas = mlx5_vzalloc(sizeof(*in->pas) * npages);
mlx5_ib_dbg(dev, "srq->buf.page_shift = %d\n", srq->buf.page_shift);
in->pas = mlx5_vzalloc(sizeof(*in->pas) * srq->buf.npages);
if (!in->pas) {
err = -ENOMEM;
goto err_buf;
@@ -210,7 +205,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
}
srq->wq_sig = !!srq_signature;
in->log_page_size = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
in->log_page_size = srq->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT;
if (MLX5_CAP_GEN(dev->mdev, cqe_version) == MLX5_CQE_VERSION_V1 &&
in->type == IB_SRQT_XRC)
in->user_index = MLX5_IB_DEFAULT_UIDX;
drivers/infiniband/ulp/ipoib/ipoib_cm.c
+7 -5
View File
@@ -1511,12 +1511,14 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr,
ret = ipoib_set_mode(dev, buf);
rtnl_unlock();
/* The assumption is that the function ipoib_set_mode returned
* with the rtnl held by it, if not the value -EBUSY returned,
* then no need to rtnl_unlock
*/
if (ret != -EBUSY)
rtnl_unlock();
if (!ret)
return count;
return ret;
return (!ret || ret == -EBUSY) ? count : ret;
}
static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO, show_mode, set_mode);
drivers/infiniband/ulp/ipoib/ipoib_main.c
+19 -17
View File
@@ -468,8 +468,7 @@ int ipoib_set_mode(struct net_device *dev, const char *buf)
priv->tx_wr.wr.send_flags &= ~IB_SEND_IP_CSUM;
ipoib_flush_paths(dev);
rtnl_lock();
return 0;
return (!rtnl_trylock()) ? -EBUSY : 0;
}
if (!strcmp(buf, "datagram\n")) {
@@ -478,8 +477,7 @@ int ipoib_set_mode(struct net_device *dev, const char *buf)
dev_set_mtu(dev, min(priv->mcast_mtu, dev->mtu));
rtnl_unlock();
ipoib_flush_paths(dev);
rtnl_lock();
return 0;
return (!rtnl_trylock()) ? -EBUSY : 0;
}
return -EINVAL;
@@ -703,6 +701,14 @@ int ipoib_check_sm_sendonly_fullmember_support(struct ipoib_dev_priv *priv)
return ret;
}
static void push_pseudo_header(struct sk_buff *skb, const char *daddr)
{
struct ipoib_pseudo_header *phdr;
phdr = (struct ipoib_pseudo_header *)skb_push(skb, sizeof(*phdr));
memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);
}
void ipoib_flush_paths(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -927,8 +933,7 @@ static void neigh_add_path(struct sk_buff *skb, u8 *daddr,
}
if (skb_queue_len(&neigh->queue) <
IPOIB_MAX_PATH_REC_QUEUE) {
/* put pseudoheader back on for next time */
skb_push(skb, IPOIB_PSEUDO_LEN);
push_pseudo_header(skb, neigh->daddr);
__skb_queue_tail(&neigh->queue, skb);
} else {
ipoib_warn(priv, "queue length limit %d. Packet drop.\n",
@@ -946,10 +951,12 @@ static void neigh_add_path(struct sk_buff *skb, u8 *daddr,
if (!path->query && path_rec_start(dev, path))
goto err_path;
if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)
if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
push_pseudo_header(skb, neigh->daddr);
__skb_queue_tail(&neigh->queue, skb);
else
} else {
goto err_drop;
}
}
spin_unlock_irqrestore(&priv->lock, flags);
@@ -985,8 +992,7 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev,
}
if (path) {
if (skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
/* put pseudoheader back on for next time */
skb_push(skb, IPOIB_PSEUDO_LEN);
push_pseudo_header(skb, phdr->hwaddr);
__skb_queue_tail(&path->queue, skb);
} else {
++dev->stats.tx_dropped;
@@ -1018,8 +1024,7 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev,
return;
} else if ((path->query || !path_rec_start(dev, path)) &&
skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
/* put pseudoheader back on for next time */
skb_push(skb, IPOIB_PSEUDO_LEN);
push_pseudo_header(skb, phdr->hwaddr);
__skb_queue_tail(&path->queue, skb);
} else {
++dev->stats.tx_dropped;
@@ -1100,8 +1105,7 @@ send_using_neigh:
}
if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
/* put pseudoheader back on for next time */
skb_push(skb, sizeof(*phdr));
push_pseudo_header(skb, phdr->hwaddr);
spin_lock_irqsave(&priv->lock, flags);
__skb_queue_tail(&neigh->queue, skb);
spin_unlock_irqrestore(&priv->lock, flags);
@@ -1133,7 +1137,6 @@ static int ipoib_hard_header(struct sk_buff *skb,
unsigned short type,
const void *daddr, const void *saddr, unsigned len)
{
struct ipoib_pseudo_header *phdr;
struct ipoib_header *header;
header = (struct ipoib_header *) skb_push(skb, sizeof *header);
@@ -1146,8 +1149,7 @@ static int ipoib_hard_header(struct sk_buff *skb,
* destination address into skb hard header so we can figure out where
* to send the packet later.
*/
phdr = (struct ipoib_pseudo_header *) skb_push(skb, sizeof(*phdr));
memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);
push_pseudo_header(skb, daddr);
return IPOIB_HARD_LEN;
}
drivers/infiniband/ulp/srp/ib_srp.c
+35 -26
View File
@@ -366,7 +366,6 @@ static struct srp_fr_pool *srp_create_fr_pool(struct ib_device *device,
struct srp_fr_desc *d;
struct ib_mr *mr;
int i, ret = -EINVAL;
enum ib_mr_type mr_type;
if (pool_size <= 0)
goto err;
@@ -380,13 +379,9 @@ static struct srp_fr_pool *srp_create_fr_pool(struct ib_device *device,
spin_lock_init(&pool->lock);
INIT_LIST_HEAD(&pool->free_list);
if (device->attrs.device_cap_flags & IB_DEVICE_SG_GAPS_REG)
mr_type = IB_MR_TYPE_SG_GAPS;
else
mr_type = IB_MR_TYPE_MEM_REG;
for (i = 0, d = &pool->desc[0]; i < pool->size; i++, d++) {
mr = ib_alloc_mr(pd, mr_type, max_page_list_len);
mr = ib_alloc_mr(pd, IB_MR_TYPE_MEM_REG,
max_page_list_len);
if (IS_ERR(mr)) {
ret = PTR_ERR(mr);
goto destroy_pool;
@@ -1877,17 +1872,24 @@ static void srp_process_rsp(struct srp_rdma_ch *ch, struct srp_rsp *rsp)
if (unlikely(rsp->tag & SRP_TAG_TSK_MGMT)) {
spin_lock_irqsave(&ch->lock, flags);
ch->req_lim += be32_to_cpu(rsp->req_lim_delta);
if (rsp->tag == ch->tsk_mgmt_tag) {
ch->tsk_mgmt_status = -1;
if (be32_to_cpu(rsp->resp_data_len) >= 4)
ch->tsk_mgmt_status = rsp->data[3];
complete(&ch->tsk_mgmt_done);
} else {
shost_printk(KERN_ERR, target->scsi_host,
"Received tsk mgmt response too late for tag %#llx\n",
rsp->tag);
}
spin_unlock_irqrestore(&ch->lock, flags);
ch->tsk_mgmt_status = -1;
if (be32_to_cpu(rsp->resp_data_len) >= 4)
ch->tsk_mgmt_status = rsp->data[3];
complete(&ch->tsk_mgmt_done);
} else {
scmnd = scsi_host_find_tag(target->scsi_host, rsp->tag);
if (scmnd) {
if (scmnd && scmnd->host_scribble) {
req = (void *)scmnd->host_scribble;
scmnd = srp_claim_req(ch, req, NULL, scmnd);
} else {
scmnd = NULL;
}
if (!scmnd) {
shost_printk(KERN_ERR, target->scsi_host,
@@ -2519,19 +2521,18 @@ srp_change_queue_depth(struct scsi_device *sdev, int qdepth)
}
static int srp_send_tsk_mgmt(struct srp_rdma_ch *ch, u64 req_tag, u64 lun,
u8 func)
u8 func, u8 *status)
{
struct srp_target_port *target = ch->target;
struct srp_rport *rport = target->rport;
struct ib_device *dev = target->srp_host->srp_dev->dev;
struct srp_iu *iu;
struct srp_tsk_mgmt *tsk_mgmt;
int res;
if (!ch->connected || target->qp_in_error)
return -1;
init_completion(&ch->tsk_mgmt_done);
/*
* Lock the rport mutex to avoid that srp_create_ch_ib() is
* invoked while a task management function is being sent.
@@ -2554,10 +2555,16 @@ static int srp_send_tsk_mgmt(struct srp_rdma_ch *ch, u64 req_tag, u64 lun,
tsk_mgmt->opcode = SRP_TSK_MGMT;
int_to_scsilun(lun, &tsk_mgmt->lun);
tsk_mgmt->tag = req_tag | SRP_TAG_TSK_MGMT;
tsk_mgmt->tsk_mgmt_func = func;
tsk_mgmt->task_tag = req_tag;
spin_lock_irq(&ch->lock);
ch->tsk_mgmt_tag = (ch->tsk_mgmt_tag + 1) | SRP_TAG_TSK_MGMT;
tsk_mgmt->tag = ch->tsk_mgmt_tag;
spin_unlock_irq(&ch->lock);
init_completion(&ch->tsk_mgmt_done);
ib_dma_sync_single_for_device(dev, iu->dma, sizeof *tsk_mgmt,
DMA_TO_DEVICE);
if (srp_post_send(ch, iu, sizeof(*tsk_mgmt))) {
@@ -2566,13 +2573,15 @@ static int srp_send_tsk_mgmt(struct srp_rdma_ch *ch, u64 req_tag, u64 lun,
return -1;
}
res = wait_for_completion_timeout(&ch->tsk_mgmt_done,
msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS));
if (res > 0 && status)
*status = ch->tsk_mgmt_status;
mutex_unlock(&rport->mutex);
if (!wait_for_completion_timeout(&ch->tsk_mgmt_done,
msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS)))
return -1;
WARN_ON_ONCE(res < 0);
return 0;
return res > 0 ? 0 : -1;
}
static int srp_abort(struct scsi_cmnd *scmnd)
@@ -2598,7 +2607,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
shost_printk(KERN_ERR, target->scsi_host,
"Sending SRP abort for tag %#x\n", tag);
if (srp_send_tsk_mgmt(ch, tag, scmnd->device->lun,
SRP_TSK_ABORT_TASK) == 0)
SRP_TSK_ABORT_TASK, NULL) == 0)
ret = SUCCESS;
else if (target->rport->state == SRP_RPORT_LOST)
ret = FAST_IO_FAIL;
@@ -2616,14 +2625,15 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
struct srp_target_port *target = host_to_target(scmnd->device->host);
struct srp_rdma_ch *ch;
int i;
u8 status;
shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
ch = &target->ch[0];
if (srp_send_tsk_mgmt(ch, SRP_TAG_NO_REQ, scmnd->device->lun,
SRP_TSK_LUN_RESET))
SRP_TSK_LUN_RESET, &status))
return FAILED;
if (ch->tsk_mgmt_status)
if (status)
return FAILED;
for (i = 0; i < target->ch_count; i++) {
@@ -2652,9 +2662,8 @@ static int srp_slave_alloc(struct scsi_device *sdev)
struct Scsi_Host *shost = sdev->host;
struct srp_target_port *target = host_to_target(shost);
struct srp_device *srp_dev = target->srp_host->srp_dev;
struct ib_device *ibdev = srp_dev->dev;
if (!(ibdev->attrs.device_cap_flags & IB_DEVICE_SG_GAPS_REG))
if (true)
blk_queue_virt_boundary(sdev->request_queue,
~srp_dev->mr_page_mask);
drivers/infiniband/ulp/srp/ib_srp.h
+1
View File
@@ -163,6 +163,7 @@ struct srp_rdma_ch {
int max_ti_iu_len;
int comp_vector;
u64 tsk_mgmt_tag;
struct completion tsk_mgmt_done;
u8 tsk_mgmt_status;
bool connected;
drivers/iommu/intel-iommu.c
+2 -1
View File
@@ -3325,13 +3325,14 @@ static int __init init_dmars(void)
iommu_identity_mapping |= IDENTMAP_GFX;
#endif
check_tylersburg_isoch();
if (iommu_identity_mapping) {
ret = si_domain_init(hw_pass_through);
if (ret)
goto free_iommu;
}
check_tylersburg_isoch();
/*
* If we copied translations from a previous kernel in the kdump
drivers/md/dm-android-verity.c
+37 -18
View File
@@ -115,6 +115,12 @@ static inline bool is_userdebug(void)
return !strncmp(buildvariant, typeuserdebug, sizeof(typeuserdebug));
}
static inline bool is_unlocked(void)
{
static const char unlocked[] = "orange";
return !strncmp(verifiedbootstate, unlocked, sizeof(unlocked));
}
static int table_extract_mpi_array(struct public_key_signature *pks,
const void *data, size_t len)
@@ -585,6 +591,8 @@ static int verify_verity_signature(char *key_id,
if (IS_ERR(pks)) {
DMERR("hashing failed");
retval = PTR_ERR(pks);
pks = NULL;
goto error;
}
@@ -649,6 +657,28 @@ static int add_as_linear_device(struct dm_target *ti, char *dev)
return err;
}
static int create_linear_device(struct dm_target *ti, dev_t dev,
char *target_device)
{
u64 device_size = 0;
int err = find_size(dev, &device_size);
if (err) {
DMERR("error finding bdev size");
handle_error();
return err;
}
ti->len = device_size;
err = add_as_linear_device(ti, target_device);
if (err) {
handle_error();
return err;
}
verity_enabled = false;
return 0;
}
/*
* Target parameters:
* <key id> Key id of the public key in the system keyring.
@@ -672,7 +702,6 @@ static int android_verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
struct fec_ecc_metadata uninitialized_var(ecc);
char buf[FEC_ARG_LENGTH], *buf_ptr;
unsigned long long tmpll;
u64 uninitialized_var(device_size);
if (argc == 1) {
/* Use the default keyid */
@@ -700,23 +729,8 @@ static int android_verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
return -EINVAL;
}
if (is_eng()) {
err = find_size(dev, &device_size);
if (err) {
DMERR("error finding bdev size");
handle_error();
return err;
}
ti->len = device_size;
err = add_as_linear_device(ti, target_device);
if (err) {
handle_error();
return err;
}
verity_enabled = false;
return 0;
}
if (is_eng())
return create_linear_device(ti, dev, target_device);
strreplace(key_id, '#', ' ');
@@ -731,6 +745,11 @@ static int android_verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
err = extract_metadata(dev, &fec, &metadata, &verity_enabled);
if (err) {
/* Allow invalid metadata when the device is unlocked */
if (is_unlocked()) {
DMWARN("Allow invalid metadata when unlocked");
return create_linear_device(ti, dev, target_device);
}
DMERR("Error while extracting metadata");
handle_error();
goto free_metadata;
drivers/md/dm-cache-target.c
+3 -3
View File
@@ -248,7 +248,7 @@ struct cache {
/*
* Fields for converting from sectors to blocks.
*/
uint32_t sectors_per_block;
sector_t sectors_per_block;
int sectors_per_block_shift;
spinlock_t lock;
@@ -3546,11 +3546,11 @@ static void cache_status(struct dm_target *ti, status_type_t type,
residency = policy_residency(cache->policy);
DMEMIT("%u %llu/%llu %u %llu/%llu %u %u %u %u %u %u %lu ",
DMEMIT("%u %llu/%llu %llu %llu/%llu %u %u %u %u %u %u %lu ",
(unsigned)DM_CACHE_METADATA_BLOCK_SIZE,
(unsigned long long)(nr_blocks_metadata - nr_free_blocks_metadata),
(unsigned long long)nr_blocks_metadata,
cache->sectors_per_block,
(unsigned long long)cache->sectors_per_block,
(unsigned long long) from_cblock(residency),
(unsigned long long) from_cblock(cache->cache_size),
(unsigned) atomic_read(&cache->stats.read_hit),
drivers/md/dm-raid.c
+11 -1
View File
@@ -3621,6 +3621,8 @@ static int raid_preresume(struct dm_target *ti)
return r;
}
#define RESUME_STAY_FROZEN_FLAGS (CTR_FLAG_DELTA_DISKS | CTR_FLAG_DATA_OFFSET)
static void raid_resume(struct dm_target *ti)
{
struct raid_set *rs = ti->private;
@@ -3638,7 +3640,15 @@ static void raid_resume(struct dm_target *ti)
mddev->ro = 0;
mddev->in_sync = 0;
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
/*
* Keep the RAID set frozen if reshape/rebuild flags are set.
* The RAID set is unfrozen once the next table load/resume,
* which clears the reshape/rebuild flags, occurs.
* This ensures that the constructor for the inactive table
* retrieves an up-to-date reshape_position.
*/
if (!(rs->ctr_flags & RESUME_STAY_FROZEN_FLAGS))
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
if (mddev->suspended)
mddev_resume(mddev);
drivers/md/dm-round-robin.c
+14 -53
View File
@@ -17,8 +17,8 @@
#include <linux/module.h>
#define DM_MSG_PREFIX "multipath round-robin"
#define RR_MIN_IO 1000
#define RR_VERSION "1.1.0"
#define RR_MIN_IO 1
#define RR_VERSION "1.2.0"
/*-----------------------------------------------------------------
* Path-handling code, paths are held in lists
@@ -47,44 +47,19 @@ struct selector {
struct list_head valid_paths;
struct list_head invalid_paths;
spinlock_t lock;
struct dm_path * __percpu *current_path;
struct percpu_counter repeat_count;
};
static void set_percpu_current_path(struct selector *s, struct dm_path *path)
{
int cpu;
for_each_possible_cpu(cpu)
*per_cpu_ptr(s->current_path, cpu) = path;
}
static struct selector *alloc_selector(void)
{
struct selector *s = kmalloc(sizeof(*s), GFP_KERNEL);
if (!s)
return NULL;
INIT_LIST_HEAD(&s->valid_paths);
INIT_LIST_HEAD(&s->invalid_paths);
spin_lock_init(&s->lock);
s->current_path = alloc_percpu(struct dm_path *);
if (!s->current_path)
goto out_current_path;
set_percpu_current_path(s, NULL);
if (percpu_counter_init(&s->repeat_count, 0, GFP_KERNEL))
goto out_repeat_count;
if (s) {
INIT_LIST_HEAD(&s->valid_paths);
INIT_LIST_HEAD(&s->invalid_paths);
spin_lock_init(&s->lock);
}
return s;
out_repeat_count:
free_percpu(s->current_path);
out_current_path:
kfree(s);
return NULL;;
}
static int rr_create(struct path_selector *ps, unsigned argc, char **argv)
@@ -105,8 +80,6 @@ static void rr_destroy(struct path_selector *ps)
free_paths(&s->valid_paths);
free_paths(&s->invalid_paths);
free_percpu(s->current_path);
percpu_counter_destroy(&s->repeat_count);
kfree(s);
ps->context = NULL;
}
@@ -157,6 +130,11 @@ static int rr_add_path(struct path_selector *ps, struct dm_path *path,
return -EINVAL;
}
if (repeat_count > 1) {
DMWARN_LIMIT("repeat_count > 1 is deprecated, using 1 instead");
repeat_count = 1;
}
/* allocate the path */
pi = kmalloc(sizeof(*pi), GFP_KERNEL);
if (!pi) {
@@ -183,9 +161,6 @@ static void rr_fail_path(struct path_selector *ps, struct dm_path *p)
struct path_info *pi = p->pscontext;
spin_lock_irqsave(&s->lock, flags);
if (p == *this_cpu_ptr(s->current_path))
set_percpu_current_path(s, NULL);
list_move(&pi->list, &s->invalid_paths);
spin_unlock_irqrestore(&s->lock, flags);
}
@@ -208,29 +183,15 @@ static struct dm_path *rr_select_path(struct path_selector *ps, size_t nr_bytes)
unsigned long flags;
struct selector *s = ps->context;
struct path_info *pi = NULL;
struct dm_path *current_path = NULL;
local_irq_save(flags);
current_path = *this_cpu_ptr(s->current_path);
if (current_path) {
percpu_counter_dec(&s->repeat_count);
if (percpu_counter_read_positive(&s->repeat_count) > 0) {
local_irq_restore(flags);
return current_path;
}
}
spin_lock(&s->lock);
spin_lock_irqsave(&s->lock, flags);
if (!list_empty(&s->valid_paths)) {
pi = list_entry(s->valid_paths.next, struct path_info, list);
list_move_tail(&pi->list, &s->valid_paths);
percpu_counter_set(&s->repeat_count, pi->repeat_count);
set_percpu_current_path(s, pi->path);
current_path = pi->path;
}
spin_unlock_irqrestore(&s->lock, flags);
return current_path;
return pi ? pi->path : NULL;
}
static struct path_selector_type rr_ps = {
drivers/md/dm-stats.c
+1
View File
@@ -175,6 +175,7 @@ static void dm_stat_free(struct rcu_head *head)
int cpu;
struct dm_stat *s = container_of(head, struct dm_stat, rcu_head);
kfree(s->histogram_boundaries);
kfree(s->program_id);
kfree(s->aux_data);
for_each_possible_cpu(cpu) {
drivers/md/linear.c
+34 -5
View File
@@ -52,18 +52,26 @@ static inline struct dev_info *which_dev(struct mddev *mddev, sector_t sector)
return conf->disks + lo;
}
/*
* In linear_congested() conf->raid_disks is used as a copy of
* mddev->raid_disks to iterate conf->disks[], because conf->raid_disks
* and conf->disks[] are created in linear_conf(), they are always
* consitent with each other, but mddev->raid_disks does not.
*/
static int linear_congested(struct mddev *mddev, int bits)
{
struct linear_conf *conf;
int i, ret = 0;
conf = mddev->private;
rcu_read_lock();
conf = rcu_dereference(mddev->private);
for (i = 0; i < mddev->raid_disks && !ret ; i++) {
for (i = 0; i < conf->raid_disks && !ret ; i++) {
struct request_queue *q = bdev_get_queue(conf->disks[i].rdev->bdev);
ret |= bdi_congested(&q->backing_dev_info, bits);
}
rcu_read_unlock();
return ret;
}
@@ -143,6 +151,19 @@ static struct linear_conf *linear_conf(struct mddev *mddev, int raid_disks)
conf->disks[i-1].end_sector +
conf->disks[i].rdev->sectors;
/*
* conf->raid_disks is copy of mddev->raid_disks. The reason to
* keep a copy of mddev->raid_disks in struct linear_conf is,
* mddev->raid_disks may not be consistent with pointers number of
* conf->disks[] when it is updated in linear_add() and used to
* iterate old conf->disks[] earray in linear_congested().
* Here conf->raid_disks is always consitent with number of
* pointers in conf->disks[] array, and mddev->private is updated
* with rcu_assign_pointer() in linear_addr(), such race can be
* avoided.
*/
conf->raid_disks = raid_disks;
return conf;
out:
@@ -195,15 +216,23 @@ static int linear_add(struct mddev *mddev, struct md_rdev *rdev)
if (!newconf)
return -ENOMEM;
/* newconf->raid_disks already keeps a copy of * the increased
* value of mddev->raid_disks, WARN_ONCE() is just used to make
* sure of this. It is possible that oldconf is still referenced
* in linear_congested(), therefore kfree_rcu() is used to free
* oldconf until no one uses it anymore.
*/
mddev_suspend(mddev);
oldconf = mddev->private;
oldconf = rcu_dereference(mddev->private);
mddev->raid_disks++;
mddev->private = newconf;
WARN_ONCE(mddev->raid_disks != newconf->raid_disks,
"copied raid_disks doesn't match mddev->raid_disks");
rcu_assign_pointer(mddev->private, newconf);
md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
set_capacity(mddev->gendisk, mddev->array_sectors);
mddev_resume(mddev);
revalidate_disk(mddev->gendisk);
kfree(oldconf);
kfree_rcu(oldconf, rcu);
return 0;
}
drivers/md/linear.h
+1
View File
@@ -10,6 +10,7 @@ struct linear_conf
{
struct rcu_head rcu;
sector_t array_sectors;
int raid_disks; /* a copy of mddev->raid_disks */
struct dev_info disks[0];
};
#endif
drivers/media/dvb-frontends/cxd2820r_core.c
+1 -1
View File
@@ -615,6 +615,7 @@ static int cxd2820r_probe(struct i2c_client *client,
}
priv->client[0] = client;
priv->fe.demodulator_priv = priv;
priv->i2c = client->adapter;
priv->ts_mode = pdata->ts_mode;
priv->ts_clk_inv = pdata->ts_clk_inv;
@@ -697,7 +698,6 @@ static int cxd2820r_probe(struct i2c_client *client,
memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(priv->fe.ops));
if (!pdata->attach_in_use)
priv->fe.ops.release = NULL;
priv->fe.demodulator_priv = priv;
i2c_set_clientdata(client, priv);
/* Setup callbacks */
drivers/media/media-device.c
+1 -1
View File
@@ -130,7 +130,7 @@ static long media_device_enum_entities(struct media_device *mdev,
* old range.
*/
if (ent->function < MEDIA_ENT_F_OLD_BASE ||
ent->function > MEDIA_ENT_T_DEVNODE_UNKNOWN) {
ent->function > MEDIA_ENT_F_TUNER) {
if (is_media_entity_v4l2_subdev(ent))
entd->type = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
else if (ent->function != MEDIA_ENT_F_IO_V4L)
drivers/media/pci/dm1105/Kconfig
+1 -1
View File
@@ -1,6 +1,6 @@
config DVB_DM1105
tristate "SDMC DM1105 based PCI cards"
depends on DVB_CORE && PCI && I2C
depends on DVB_CORE && PCI && I2C && I2C_ALGOBIT
select DVB_PLL if MEDIA_SUBDRV_AUTOSELECT
select DVB_STV0299 if MEDIA_SUBDRV_AUTOSELECT
select DVB_STV0288 if MEDIA_SUBDRV_AUTOSELECT
drivers/media/platform/am437x/am437x-vpfe.c
+1 -1
View File
@@ -1576,7 +1576,7 @@ static int vpfe_s_fmt(struct file *file, void *priv,
return -EBUSY;
}
ret = vpfe_try_fmt(file, priv, &format);
ret = __vpfe_get_format(vpfe, &format, &bpp);
if (ret)
return ret;
drivers/media/rc/lirc_dev.c
+2 -2
View File
@@ -589,7 +589,7 @@ long lirc_dev_fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
result = put_user(ir->d.features, (__u32 __user *)arg);
break;
case LIRC_GET_REC_MODE:
if (LIRC_CAN_REC(ir->d.features)) {
if (!LIRC_CAN_REC(ir->d.features)) {
result = -ENOTTY;
break;
}
@@ -599,7 +599,7 @@ long lirc_dev_fop_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
(__u32 __user *)arg);
break;
case LIRC_SET_REC_MODE:
if (LIRC_CAN_REC(ir->d.features)) {
if (!LIRC_CAN_REC(ir->d.features)) {
result = -ENOTTY;
break;
}
drivers/media/usb/uvc/uvc_queue.c
+1 -1
View File
@@ -412,7 +412,7 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
nextbuf = NULL;
spin_unlock_irqrestore(&queue->irqlock, flags);
buf->state = buf->error ? VB2_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
buf->state = buf->error ? UVC_BUF_STATE_ERROR : UVC_BUF_STATE_DONE;
vb2_set_plane_payload(&buf->buf.vb2_buf, 0, buf->bytesused);
vb2_buffer_done(&buf->buf.vb2_buf, VB2_BUF_STATE_DONE);
drivers/memory/atmel-ebi.c
+14 -13
View File
@@ -93,7 +93,7 @@ static void at91sam9_ebi_get_config(struct at91_ebi_dev *ebid,
struct at91_ebi_dev_config *conf)
{
struct at91sam9_smc_generic_fields *fields = &ebid->ebi->sam9;
unsigned int clk_rate = clk_get_rate(ebid->ebi->clk);
unsigned int clk_period = NSEC_PER_SEC / clk_get_rate(ebid->ebi->clk);
struct at91sam9_ebi_dev_config *config = &conf->sam9;
struct at91sam9_smc_timings *timings = &config->timings;
unsigned int val;
@@ -102,43 +102,43 @@ static void at91sam9_ebi_get_config(struct at91_ebi_dev *ebid,
config->mode = val & ~AT91_SMC_TDF;
val = (val & AT91_SMC_TDF) >> 16;
timings->tdf_ns = clk_rate * val;
timings->tdf_ns = clk_period * val;
regmap_fields_read(fields->setup, conf->cs, &val);
timings->ncs_rd_setup_ns = (val >> 24) & 0x1f;
timings->ncs_rd_setup_ns += ((val >> 29) & 0x1) * 128;
timings->ncs_rd_setup_ns *= clk_rate;
timings->ncs_rd_setup_ns *= clk_period;
timings->nrd_setup_ns = (val >> 16) & 0x1f;
timings->nrd_setup_ns += ((val >> 21) & 0x1) * 128;
timings->nrd_setup_ns *= clk_rate;
timings->nrd_setup_ns *= clk_period;
timings->ncs_wr_setup_ns = (val >> 8) & 0x1f;
timings->ncs_wr_setup_ns += ((val >> 13) & 0x1) * 128;
timings->ncs_wr_setup_ns *= clk_rate;
timings->ncs_wr_setup_ns *= clk_period;
timings->nwe_setup_ns = val & 0x1f;
timings->nwe_setup_ns += ((val >> 5) & 0x1) * 128;
timings->nwe_setup_ns *= clk_rate;
timings->nwe_setup_ns *= clk_period;
regmap_fields_read(fields->pulse, conf->cs, &val);
timings->ncs_rd_pulse_ns = (val >> 24) & 0x3f;
timings->ncs_rd_pulse_ns += ((val >> 30) & 0x1) * 256;
timings->ncs_rd_pulse_ns *= clk_rate;
timings->ncs_rd_pulse_ns *= clk_period;
timings->nrd_pulse_ns = (val >> 16) & 0x3f;
timings->nrd_pulse_ns += ((val >> 22) & 0x1) * 256;
timings->nrd_pulse_ns *= clk_rate;
timings->nrd_pulse_ns *= clk_period;
timings->ncs_wr_pulse_ns = (val >> 8) & 0x3f;
timings->ncs_wr_pulse_ns += ((val >> 14) & 0x1) * 256;
timings->ncs_wr_pulse_ns *= clk_rate;
timings->ncs_wr_pulse_ns *= clk_period;
timings->nwe_pulse_ns = val & 0x3f;
timings->nwe_pulse_ns += ((val >> 6) & 0x1) * 256;
timings->nwe_pulse_ns *= clk_rate;
timings->nwe_pulse_ns *= clk_period;
regmap_fields_read(fields->cycle, conf->cs, &val);
timings->nrd_cycle_ns = (val >> 16) & 0x7f;
timings->nrd_cycle_ns += ((val >> 23) & 0x3) * 256;
timings->nrd_cycle_ns *= clk_rate;
timings->nrd_cycle_ns *= clk_period;
timings->nwe_cycle_ns = val & 0x7f;
timings->nwe_cycle_ns += ((val >> 7) & 0x3) * 256;
timings->nwe_cycle_ns *= clk_rate;
timings->nwe_cycle_ns *= clk_period;
}
static int at91_xlate_timing(struct device_node *np, const char *prop,
@@ -334,6 +334,7 @@ static int at91sam9_ebi_apply_config(struct at91_ebi_dev *ebid,
struct at91_ebi_dev_config *conf)
{
unsigned int clk_rate = clk_get_rate(ebid->ebi->clk);
unsigned int clk_period = NSEC_PER_SEC / clk_rate;
struct at91sam9_ebi_dev_config *config = &conf->sam9;
struct at91sam9_smc_timings *timings = &config->timings;
struct at91sam9_smc_generic_fields *fields = &ebid->ebi->sam9;
@@ -376,7 +377,7 @@ static int at91sam9_ebi_apply_config(struct at91_ebi_dev *ebid,
val |= AT91SAM9_SMC_NWECYCLE(coded_val);
regmap_fields_write(fields->cycle, conf->cs, val);
val = DIV_ROUND_UP(timings->tdf_ns, clk_rate);
val = DIV_ROUND_UP(timings->tdf_ns, clk_period);
if (val > AT91_SMC_TDF_MAX)
val = AT91_SMC_TDF_MAX;
regmap_fields_write(fields->mode, conf->cs,
drivers/misc/Kconfig
+4 -2
View File
@@ -766,11 +766,13 @@ config PANEL_BOOT_MESSAGE
An empty message will only clear the display at driver init time. Any other
printf()-formatted message is valid with newline and escape codes.
config UID_CPUTIME
bool "Per-UID cpu time statistics"
config UID_SYS_STATS
bool "Per-UID statistics"
depends on PROFILING
help
Per UID based cpu time statistics exported to /proc/uid_cputime
Per UID based io statistics exported to /proc/uid_io
Per UID based procstat control in /proc/uid_procstat
config MEMORY_STATE_TIME
tristate "Memory freq/bandwidth time statistics"
drivers/misc/Makefile
+1 -1
View File
@@ -54,7 +54,7 @@ obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o
obj-$(CONFIG_CXL_BASE) += cxl/
obj-$(CONFIG_PANEL) += panel.o
obj-$(CONFIG_UID_CPUTIME) += uid_cputime.o
obj-$(CONFIG_UID_SYS_STATS) += uid_sys_stats.o
obj-$(CONFIG_MEMORY_STATE_TIME) += memory_state_time.o
lkdtm-$(CONFIG_LKDTM) += lkdtm_core.o
drivers/misc/cxl/cxl.h
+3
View File
@@ -419,6 +419,9 @@ struct cxl_afu {
struct mutex contexts_lock;
spinlock_t afu_cntl_lock;
/* -1: AFU deconfigured/locked, >= 0: number of readers */
atomic_t configured_state;
/* AFU error buffer fields and bin attribute for sysfs */
u64 eb_len, eb_offset;
struct bin_attribute attr_eb;
drivers/misc/cxl/main.c
+1 -1
View File
@@ -268,7 +268,7 @@ struct cxl_afu *cxl_alloc_afu(struct cxl *adapter, int slice)
idr_init(&afu->contexts_idr);
mutex_init(&afu->contexts_lock);
spin_lock_init(&afu->afu_cntl_lock);
atomic_set(&afu->configured_state, -1);
afu->prefault_mode = CXL_PREFAULT_NONE;
afu->irqs_max = afu->adapter->user_irqs;
drivers/misc/cxl/pci.c
+9
View File
@@ -1129,6 +1129,7 @@ static int pci_configure_afu(struct cxl_afu *afu, struct cxl *adapter, struct pc
if ((rc = cxl_native_register_psl_irq(afu)))
goto err2;
atomic_set(&afu->configured_state, 0);
return 0;
err2:
@@ -1141,6 +1142,14 @@ err1:
static void pci_deconfigure_afu(struct cxl_afu *afu)
{
/*
* It's okay to deconfigure when AFU is already locked, otherwise wait
* until there are no readers
*/
if (atomic_read(&afu->configured_state) != -1) {
while (atomic_cmpxchg(&afu->configured_state, 0, -1) != -1)
schedule();
}
cxl_native_release_psl_irq(afu);
if (afu->adapter->native->sl_ops->release_serr_irq)
afu->adapter->native->sl_ops->release_serr_irq(afu);
drivers/misc/cxl/vphb.c
+39 -22
View File
@@ -76,23 +76,32 @@ static int cxl_pcie_cfg_record(u8 bus, u8 devfn)
return (bus << 8) + devfn;
}
static int cxl_pcie_config_info(struct pci_bus *bus, unsigned int devfn,
struct cxl_afu **_afu, int *_record)
static inline struct cxl_afu *pci_bus_to_afu(struct pci_bus *bus)
{
struct pci_controller *phb = bus ? pci_bus_to_host(bus) : NULL;
return phb ? phb->private_data : NULL;
}
static void cxl_afu_configured_put(struct cxl_afu *afu)
{
atomic_dec_if_positive(&afu->configured_state);
}
static bool cxl_afu_configured_get(struct cxl_afu *afu)
{
return atomic_inc_unless_negative(&afu->configured_state);
}
static inline int cxl_pcie_config_info(struct pci_bus *bus, unsigned int devfn,
struct cxl_afu *afu, int *_record)
{
struct pci_controller *phb;
struct cxl_afu *afu;
int record;
phb = pci_bus_to_host(bus);
if (phb == NULL)
return PCIBIOS_DEVICE_NOT_FOUND;
afu = (struct cxl_afu *)phb->private_data;
record = cxl_pcie_cfg_record(bus->number, devfn);
if (record > afu->crs_num)
return PCIBIOS_DEVICE_NOT_FOUND;
*_afu = afu;
*_record = record;
return 0;
}
@@ -106,9 +115,14 @@ static int cxl_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
u16 val16;
u32 val32;
rc = cxl_pcie_config_info(bus, devfn, &afu, &record);
afu = pci_bus_to_afu(bus);
/* Grab a reader lock on afu. */
if (afu == NULL || !cxl_afu_configured_get(afu))
return PCIBIOS_DEVICE_NOT_FOUND;
rc = cxl_pcie_config_info(bus, devfn, afu, &record);
if (rc)
return rc;
goto out;
switch (len) {
case 1:
@@ -127,10 +141,9 @@ static int cxl_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
WARN_ON(1);
}
if (rc)
return PCIBIOS_DEVICE_NOT_FOUND;
return PCIBIOS_SUCCESSFUL;
out:
cxl_afu_configured_put(afu);
return rc ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
}
static int cxl_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
@@ -139,9 +152,14 @@ static int cxl_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
int rc, record;
struct cxl_afu *afu;
rc = cxl_pcie_config_info(bus, devfn, &afu, &record);
afu = pci_bus_to_afu(bus);
/* Grab a reader lock on afu. */
if (afu == NULL || !cxl_afu_configured_get(afu))
return PCIBIOS_DEVICE_NOT_FOUND;
rc = cxl_pcie_config_info(bus, devfn, afu, &record);
if (rc)
return rc;
goto out;
switch (len) {
case 1:
@@ -157,10 +175,9 @@ static int cxl_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
WARN_ON(1);
}
if (rc)
return PCIBIOS_SET_FAILED;
return PCIBIOS_SUCCESSFUL;
out:
cxl_afu_configured_put(afu);
return rc ? PCIBIOS_SET_FAILED : PCIBIOS_SUCCESSFUL;
}
static struct pci_ops cxl_pcie_pci_ops =
drivers/misc/mei/main.c
+26 -22
View File
@@ -182,32 +182,36 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
goto out;
}
if (rets == -EBUSY &&
!mei_cl_enqueue_ctrl_wr_cb(cl, length, MEI_FOP_READ, file)) {
rets = -ENOMEM;
again:
mutex_unlock(&dev->device_lock);
if (wait_event_interruptible(cl->rx_wait,
!list_empty(&cl->rd_completed) ||
!mei_cl_is_connected(cl))) {
if (signal_pending(current))
return -EINTR;
return -ERESTARTSYS;
}
mutex_lock(&dev->device_lock);
if (!mei_cl_is_connected(cl)) {
rets = -ENODEV;
goto out;
}
do {
mutex_unlock(&dev->device_lock);
cb = mei_cl_read_cb(cl, file);
if (!cb) {
/*
* For amthif all the waiters are woken up,
* but only fp with matching cb->fp get the cb,
* the others have to return to wait on read.
*/
if (cl == &dev->iamthif_cl)
goto again;
if (wait_event_interruptible(cl->rx_wait,
(!list_empty(&cl->rd_completed)) ||
(!mei_cl_is_connected(cl)))) {
if (signal_pending(current))
return -EINTR;
return -ERESTARTSYS;
}
mutex_lock(&dev->device_lock);
if (!mei_cl_is_connected(cl)) {
rets = -ENODEV;
goto out;
}
cb = mei_cl_read_cb(cl, file);
} while (!cb);
rets = 0;
goto out;
}
copy_buffer:
/* now copy the data to user space */
drivers/misc/uid_cputime.c
-240
View File
@@ -1,240 +0,0 @@
/* drivers/misc/uid_cputime.c
*
* Copyright (C) 2014 - 2015 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/atomic.h>
#include <linux/err.h>
#include <linux/hashtable.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
#include <linux/profile.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#define UID_HASH_BITS 10
DECLARE_HASHTABLE(hash_table, UID_HASH_BITS);
static DEFINE_MUTEX(uid_lock);
static struct proc_dir_entry *parent;
struct uid_entry {
uid_t uid;
cputime_t utime;
cputime_t stime;
cputime_t active_utime;
cputime_t active_stime;
struct hlist_node hash;
};
static struct uid_entry *find_uid_entry(uid_t uid)
{
struct uid_entry *uid_entry;
hash_for_each_possible(hash_table, uid_entry, hash, uid) {
if (uid_entry->uid == uid)
return uid_entry;
}
return NULL;
}
static struct uid_entry *find_or_register_uid(uid_t uid)
{
struct uid_entry *uid_entry;
uid_entry = find_uid_entry(uid);
if (uid_entry)
return uid_entry;
uid_entry = kzalloc(sizeof(struct uid_entry), GFP_ATOMIC);
if (!uid_entry)
return NULL;
uid_entry->uid = uid;
hash_add(hash_table, &uid_entry->hash, uid);
return uid_entry;
}
static int uid_stat_show(struct seq_file *m, void *v)
{
struct uid_entry *uid_entry;
struct task_struct *task, *temp;
cputime_t utime;
cputime_t stime;
unsigned long bkt;
mutex_lock(&uid_lock);
hash_for_each(hash_table, bkt, uid_entry, hash) {
uid_entry->active_stime = 0;
uid_entry->active_utime = 0;
}
read_lock(&tasklist_lock);
do_each_thread(temp, task) {
uid_entry = find_or_register_uid(from_kuid_munged(
current_user_ns(), task_uid(task)));
if (!uid_entry) {
read_unlock(&tasklist_lock);
mutex_unlock(&uid_lock);
pr_err("%s: failed to find the uid_entry for uid %d\n",
__func__, from_kuid_munged(current_user_ns(),
task_uid(task)));
return -ENOMEM;
}
task_cputime_adjusted(task, &utime, &stime);
uid_entry->active_utime += utime;
uid_entry->active_stime += stime;
} while_each_thread(temp, task);
read_unlock(&tasklist_lock);
hash_for_each(hash_table, bkt, uid_entry, hash) {
cputime_t total_utime = uid_entry->utime +
uid_entry->active_utime;
cputime_t total_stime = uid_entry->stime +
uid_entry->active_stime;
seq_printf(m, "%d: %llu %llu\n", uid_entry->uid,
(unsigned long long)jiffies_to_msecs(
cputime_to_jiffies(total_utime)) * USEC_PER_MSEC,
(unsigned long long)jiffies_to_msecs(
cputime_to_jiffies(total_stime)) * USEC_PER_MSEC);
}
mutex_unlock(&uid_lock);
return 0;
}
static int uid_stat_open(struct inode *inode, struct file *file)
{
return single_open(file, uid_stat_show, PDE_DATA(inode));
}
static const struct file_operations uid_stat_fops = {
.open = uid_stat_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int uid_remove_open(struct inode *inode, struct file *file)
{
return single_open(file, NULL, NULL);
}
static ssize_t uid_remove_write(struct file *file,
const char __user *buffer, size_t count, loff_t *ppos)
{
struct uid_entry *uid_entry;
struct hlist_node *tmp;
char uids[128];
char *start_uid, *end_uid = NULL;
long int uid_start = 0, uid_end = 0;
if (count >= sizeof(uids))
count = sizeof(uids) - 1;
if (copy_from_user(uids, buffer, count))
return -EFAULT;
uids[count] = '\0';
end_uid = uids;
start_uid = strsep(&end_uid, "-");
if (!start_uid || !end_uid)
return -EINVAL;
if (kstrtol(start_uid, 10, &uid_start) != 0 ||
kstrtol(end_uid, 10, &uid_end) != 0) {
return -EINVAL;
}
mutex_lock(&uid_lock);
for (; uid_start <= uid_end; uid_start++) {
hash_for_each_possible_safe(hash_table, uid_entry, tmp,
hash, (uid_t)uid_start) {
if (uid_start == uid_entry->uid) {
hash_del(&uid_entry->hash);
kfree(uid_entry);
}
}
}
mutex_unlock(&uid_lock);
return count;
}
static const struct file_operations uid_remove_fops = {
.open = uid_remove_open,
.release = single_release,
.write = uid_remove_write,
};
static int process_notifier(struct notifier_block *self,
unsigned long cmd, void *v)
{
struct task_struct *task = v;
struct uid_entry *uid_entry;
cputime_t utime, stime;
uid_t uid;
if (!task)
return NOTIFY_OK;
mutex_lock(&uid_lock);
uid = from_kuid_munged(current_user_ns(), task_uid(task));
uid_entry = find_or_register_uid(uid);
if (!uid_entry) {
pr_err("%s: failed to find uid %d\n", __func__, uid);
goto exit;
}
task_cputime_adjusted(task, &utime, &stime);
uid_entry->utime += utime;
uid_entry->stime += stime;
exit:
mutex_unlock(&uid_lock);
return NOTIFY_OK;
}
static struct notifier_block process_notifier_block = {
.notifier_call = process_notifier,
};
static int __init proc_uid_cputime_init(void)
{
hash_init(hash_table);
parent = proc_mkdir("uid_cputime", NULL);
if (!parent) {
pr_err("%s: failed to create proc entry\n", __func__);
return -ENOMEM;
}
proc_create_data("remove_uid_range", S_IWUGO, parent, &uid_remove_fops,
NULL);
proc_create_data("show_uid_stat", S_IRUGO, parent, &uid_stat_fops,
NULL);
profile_event_register(PROFILE_TASK_EXIT, &process_notifier_block);
return 0;
}
early_initcall(proc_uid_cputime_init);
drivers/misc/uid_sys_stats.c
+464
View File
@@ -0,0 +1,464 @@
/* drivers/misc/uid_cputime.c
*
* Copyright (C) 2014 - 2015 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/atomic.h>
#include <linux/err.h>
#include <linux/hashtable.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
#include <linux/profile.h>
#include <linux/rtmutex.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#define UID_HASH_BITS 10
DECLARE_HASHTABLE(hash_table, UID_HASH_BITS);
static DEFINE_RT_MUTEX(uid_lock);
static struct proc_dir_entry *cpu_parent;
static struct proc_dir_entry *io_parent;
static struct proc_dir_entry *proc_parent;
struct io_stats {
u64 read_bytes;
u64 write_bytes;
u64 rchar;
u64 wchar;
u64 fsync;
};
#define UID_STATE_FOREGROUND 0
#define UID_STATE_BACKGROUND 1
#define UID_STATE_BUCKET_SIZE 2
#define UID_STATE_TOTAL_CURR 2
#define UID_STATE_TOTAL_LAST 3
#define UID_STATE_SIZE 4
struct uid_entry {
uid_t uid;
cputime_t utime;
cputime_t stime;
cputime_t active_utime;
cputime_t active_stime;
int state;
struct io_stats io[UID_STATE_SIZE];
struct hlist_node hash;
};
static struct uid_entry *find_uid_entry(uid_t uid)
{
struct uid_entry *uid_entry;
hash_for_each_possible(hash_table, uid_entry, hash, uid) {
if (uid_entry->uid == uid)
return uid_entry;
}
return NULL;
}
static struct uid_entry *find_or_register_uid(uid_t uid)
{
struct uid_entry *uid_entry;
uid_entry = find_uid_entry(uid);
if (uid_entry)
return uid_entry;
uid_entry = kzalloc(sizeof(struct uid_entry), GFP_ATOMIC);
if (!uid_entry)
return NULL;
uid_entry->uid = uid;
hash_add(hash_table, &uid_entry->hash, uid);
return uid_entry;
}
static int uid_cputime_show(struct seq_file *m, void *v)
{
struct uid_entry *uid_entry;
struct task_struct *task, *temp;
cputime_t utime;
cputime_t stime;
unsigned long bkt;
rt_mutex_lock(&uid_lock);
hash_for_each(hash_table, bkt, uid_entry, hash) {
uid_entry->active_stime = 0;
uid_entry->active_utime = 0;
}
read_lock(&tasklist_lock);
do_each_thread(temp, task) {
uid_entry = find_or_register_uid(from_kuid_munged(
current_user_ns(), task_uid(task)));
if (!uid_entry) {
read_unlock(&tasklist_lock);
rt_mutex_unlock(&uid_lock);
pr_err("%s: failed to find the uid_entry for uid %d\n",
__func__, from_kuid_munged(current_user_ns(),
task_uid(task)));
return -ENOMEM;
}
task_cputime_adjusted(task, &utime, &stime);
uid_entry->active_utime += utime;
uid_entry->active_stime += stime;
} while_each_thread(temp, task);
read_unlock(&tasklist_lock);
hash_for_each(hash_table, bkt, uid_entry, hash) {
cputime_t total_utime = uid_entry->utime +
uid_entry->active_utime;
cputime_t total_stime = uid_entry->stime +
uid_entry->active_stime;
seq_printf(m, "%d: %llu %llu\n", uid_entry->uid,
(unsigned long long)jiffies_to_msecs(
cputime_to_jiffies(total_utime)) * USEC_PER_MSEC,
(unsigned long long)jiffies_to_msecs(
cputime_to_jiffies(total_stime)) * USEC_PER_MSEC);
}
rt_mutex_unlock(&uid_lock);
return 0;
}
static int uid_cputime_open(struct inode *inode, struct file *file)
{
return single_open(file, uid_cputime_show, PDE_DATA(inode));
}
static const struct file_operations uid_cputime_fops = {
.open = uid_cputime_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int uid_remove_open(struct inode *inode, struct file *file)
{
return single_open(file, NULL, NULL);
}
static ssize_t uid_remove_write(struct file *file,
const char __user *buffer, size_t count, loff_t *ppos)
{
struct uid_entry *uid_entry;
struct hlist_node *tmp;
char uids[128];
char *start_uid, *end_uid = NULL;
long int uid_start = 0, uid_end = 0;
if (count >= sizeof(uids))
count = sizeof(uids) - 1;
if (copy_from_user(uids, buffer, count))
return -EFAULT;
uids[count] = '\0';
end_uid = uids;
start_uid = strsep(&end_uid, "-");
if (!start_uid || !end_uid)
return -EINVAL;
if (kstrtol(start_uid, 10, &uid_start) != 0 ||
kstrtol(end_uid, 10, &uid_end) != 0) {
return -EINVAL;
}
rt_mutex_lock(&uid_lock);
for (; uid_start <= uid_end; uid_start++) {
hash_for_each_possible_safe(hash_table, uid_entry, tmp,
hash, (uid_t)uid_start) {
if (uid_start == uid_entry->uid) {
hash_del(&uid_entry->hash);
kfree(uid_entry);
}
}
}
rt_mutex_unlock(&uid_lock);
return count;
}
static const struct file_operations uid_remove_fops = {
.open = uid_remove_open,
.release = single_release,
.write = uid_remove_write,
};
static u64 compute_write_bytes(struct task_struct *task)
{
if (task->ioac.write_bytes <= task->ioac.cancelled_write_bytes)
return 0;
return task->ioac.write_bytes - task->ioac.cancelled_write_bytes;
}
static void add_uid_io_curr_stats(struct uid_entry *uid_entry,
struct task_struct *task)
{
struct io_stats *io_curr = &uid_entry->io[UID_STATE_TOTAL_CURR];
io_curr->read_bytes += task->ioac.read_bytes;
io_curr->write_bytes += compute_write_bytes(task);
io_curr->rchar += task->ioac.rchar;
io_curr->wchar += task->ioac.wchar;
io_curr->fsync += task->ioac.syscfs;
}
static void clean_uid_io_last_stats(struct uid_entry *uid_entry,
struct task_struct *task)
{
struct io_stats *io_last = &uid_entry->io[UID_STATE_TOTAL_LAST];
io_last->read_bytes -= task->ioac.read_bytes;
io_last->write_bytes -= compute_write_bytes(task);
io_last->rchar -= task->ioac.rchar;
io_last->wchar -= task->ioac.wchar;
io_last->fsync -= task->ioac.syscfs;
}
static void update_io_stats_locked(void)
{
struct uid_entry *uid_entry;
struct task_struct *task, *temp;
struct io_stats *io_bucket, *io_curr, *io_last;
unsigned long bkt;
BUG_ON(!rt_mutex_is_locked(&uid_lock));
hash_for_each(hash_table, bkt, uid_entry, hash)
memset(&uid_entry->io[UID_STATE_TOTAL_CURR], 0,
sizeof(struct io_stats));
read_lock(&tasklist_lock);
do_each_thread(temp, task) {
uid_entry = find_or_register_uid(from_kuid_munged(
current_user_ns(), task_uid(task)));
if (!uid_entry)
continue;
add_uid_io_curr_stats(uid_entry, task);
} while_each_thread(temp, task);
read_unlock(&tasklist_lock);
hash_for_each(hash_table, bkt, uid_entry, hash) {
io_bucket = &uid_entry->io[uid_entry->state];
io_curr = &uid_entry->io[UID_STATE_TOTAL_CURR];
io_last = &uid_entry->io[UID_STATE_TOTAL_LAST];
io_bucket->read_bytes +=
io_curr->read_bytes - io_last->read_bytes;
io_bucket->write_bytes +=
io_curr->write_bytes - io_last->write_bytes;
io_bucket->rchar += io_curr->rchar - io_last->rchar;
io_bucket->wchar += io_curr->wchar - io_last->wchar;
io_bucket->fsync += io_curr->fsync - io_last->fsync;
io_last->read_bytes = io_curr->read_bytes;
io_last->write_bytes = io_curr->write_bytes;
io_last->rchar = io_curr->rchar;
io_last->wchar = io_curr->wchar;
io_last->fsync = io_curr->fsync;
}
}
static int uid_io_show(struct seq_file *m, void *v)
{
struct uid_entry *uid_entry;
unsigned long bkt;
rt_mutex_lock(&uid_lock);
update_io_stats_locked();
hash_for_each(hash_table, bkt, uid_entry, hash) {
seq_printf(m, "%d %llu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
uid_entry->uid,
uid_entry->io[UID_STATE_FOREGROUND].rchar,
uid_entry->io[UID_STATE_FOREGROUND].wchar,
uid_entry->io[UID_STATE_FOREGROUND].read_bytes,
uid_entry->io[UID_STATE_FOREGROUND].write_bytes,
uid_entry->io[UID_STATE_BACKGROUND].rchar,
uid_entry->io[UID_STATE_BACKGROUND].wchar,
uid_entry->io[UID_STATE_BACKGROUND].read_bytes,
uid_entry->io[UID_STATE_BACKGROUND].write_bytes,
uid_entry->io[UID_STATE_FOREGROUND].fsync,
uid_entry->io[UID_STATE_BACKGROUND].fsync);
}
rt_mutex_unlock(&uid_lock);
return 0;
}
static int uid_io_open(struct inode *inode, struct file *file)
{
return single_open(file, uid_io_show, PDE_DATA(inode));
}
static const struct file_operations uid_io_fops = {
.open = uid_io_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int uid_procstat_open(struct inode *inode, struct file *file)
{
return single_open(file, NULL, NULL);
}
static ssize_t uid_procstat_write(struct file *file,
const char __user *buffer, size_t count, loff_t *ppos)
{
struct uid_entry *uid_entry;
uid_t uid;
int argc, state;
char input[128];
if (count >= sizeof(input))
return -EINVAL;
if (copy_from_user(input, buffer, count))
return -EFAULT;
input[count] = '\0';
argc = sscanf(input, "%u %d", &uid, &state);
if (argc != 2)
return -EINVAL;
if (state != UID_STATE_BACKGROUND && state != UID_STATE_FOREGROUND)
return -EINVAL;
rt_mutex_lock(&uid_lock);
uid_entry = find_or_register_uid(uid);
if (!uid_entry) {
rt_mutex_unlock(&uid_lock);
return -EINVAL;
}
if (uid_entry->state == state) {
rt_mutex_unlock(&uid_lock);
return count;
}
update_io_stats_locked();
uid_entry->state = state;
rt_mutex_unlock(&uid_lock);
return count;
}
static const struct file_operations uid_procstat_fops = {
.open = uid_procstat_open,
.release = single_release,
.write = uid_procstat_write,
};
static int process_notifier(struct notifier_block *self,
unsigned long cmd, void *v)
{
struct task_struct *task = v;
struct uid_entry *uid_entry;
cputime_t utime, stime;
uid_t uid;
if (!task)
return NOTIFY_OK;
rt_mutex_lock(&uid_lock);
uid = from_kuid_munged(current_user_ns(), task_uid(task));
uid_entry = find_or_register_uid(uid);
if (!uid_entry) {
pr_err("%s: failed to find uid %d\n", __func__, uid);
goto exit;
}
task_cputime_adjusted(task, &utime, &stime);
uid_entry->utime += utime;
uid_entry->stime += stime;
update_io_stats_locked();
clean_uid_io_last_stats(uid_entry, task);
exit:
rt_mutex_unlock(&uid_lock);
return NOTIFY_OK;
}
static struct notifier_block process_notifier_block = {
.notifier_call = process_notifier,
};
static int __init proc_uid_sys_stats_init(void)
{
hash_init(hash_table);
cpu_parent = proc_mkdir("uid_cputime", NULL);
if (!cpu_parent) {
pr_err("%s: failed to create uid_cputime proc entry\n",
__func__);
goto err;
}
proc_create_data("remove_uid_range", 0222, cpu_parent,
&uid_remove_fops, NULL);
proc_create_data("show_uid_stat", 0444, cpu_parent,
&uid_cputime_fops, NULL);
io_parent = proc_mkdir("uid_io", NULL);
if (!io_parent) {
pr_err("%s: failed to create uid_io proc entry\n",
__func__);
goto err;
}
proc_create_data("stats", 0444, io_parent,
&uid_io_fops, NULL);
proc_parent = proc_mkdir("uid_procstat", NULL);
if (!proc_parent) {
pr_err("%s: failed to create uid_procstat proc entry\n",
__func__);
goto err;
}
proc_create_data("set", 0222, proc_parent,
&uid_procstat_fops, NULL);
profile_event_register(PROFILE_TASK_EXIT, &process_notifier_block);
return 0;
err:
remove_proc_subtree("uid_cputime", NULL);
remove_proc_subtree("uid_io", NULL);
remove_proc_subtree("uid_procstat", NULL);
return -ENOMEM;
}
early_initcall(proc_uid_sys_stats_init);
drivers/mmc/host/sdhci-acpi.c
+4 -1
View File
@@ -466,7 +466,10 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL);
if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL)) {
err = mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL);
if (err) {
if (err == -EPROBE_DEFER)
goto err_free;
dev_warn(dev, "failed to setup card detect gpio\n");
c->use_runtime_pm = false;
}
drivers/mtd/nand/fsl_ifc_nand.c
+7 -1
View File
@@ -258,9 +258,15 @@ static void fsl_ifc_run_command(struct mtd_info *mtd)
int bufnum = nctrl->page & priv->bufnum_mask;
int sector = bufnum * chip->ecc.steps;
int sector_end = sector + chip->ecc.steps - 1;
__be32 *eccstat_regs;
if (ctrl->version >= FSL_IFC_VERSION_2_0_0)
eccstat_regs = ifc->ifc_nand.v2_nand_eccstat;
else
eccstat_regs = ifc->ifc_nand.v1_nand_eccstat;
for (i = sector / 4; i <= sector_end / 4; i++)
eccstat[i] = ifc_in32(&ifc->ifc_nand.nand_eccstat[i]);
eccstat[i] = ifc_in32(&eccstat_regs[i]);
for (i = sector; i <= sector_end; i++) {
errors = check_read_ecc(mtd, ctrl, eccstat, i);

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