Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"Resurrect Alchemy platforms by invoking the WAIT instructions with
interrupts enabled. This still leaves the race condition between
testing TIF_NEED_RESCHED and the WAIT instruction for Alchemy
platforms which need a different fix than other MIPS platforms. But
at least it gets MIPS platforms flying again.
There are also fixes for two build errors (CONFIG_FTRACE=y with
CONFIG_DYNAMIC_FTRACE=n) and CONFIG_VIRTUALIZATION without CONFIG_KVM"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: ftrace: Add missing CONFIG_DYNAMIC_FTRACE
MIPS: include: mmu_context.h: Replace VIRTUALIZATION with KVM
MIPS: Alchemy: fix wait function
diff --git a/MAINTAINERS b/MAINTAINERS
index 250dc97..0c9dc71 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5766,7 +5766,7 @@
L: linux-nvme@lists.infradead.org
T: git git://git.infradead.org/users/willy/linux-nvme.git
S: Supported
-F: drivers/block/nvme.c
+F: drivers/block/nvme*
F: include/linux/nvme.h
OMAP SUPPORT
@@ -7624,7 +7624,7 @@
SPI SUBSYSTEM
M: Mark Brown <broonie@kernel.org>
M: Grant Likely <grant.likely@linaro.org>
-L: spi-devel-general@lists.sourceforge.net
+L: linux-spi@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git
Q: http://patchwork.kernel.org/project/spi-devel-general/list/
S: Maintained
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 3580d57..79e9bdb 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -124,7 +124,7 @@
endif
ccflags-y := -fpic -mno-single-pic-base -fno-builtin -I$(obj)
-asflags-y := -Wa,-march=all -DZIMAGE
+asflags-y := -DZIMAGE
# Supply kernel BSS size to the decompressor via a linker symbol.
KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
diff --git a/arch/arm/boot/compressed/debug.S b/arch/arm/boot/compressed/debug.S
index 6e8382d..5392ee6 100644
--- a/arch/arm/boot/compressed/debug.S
+++ b/arch/arm/boot/compressed/debug.S
@@ -1,6 +1,8 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
+#ifndef CONFIG_DEBUG_SEMIHOSTING
+
#include CONFIG_DEBUG_LL_INCLUDE
ENTRY(putc)
@@ -10,3 +12,29 @@
busyuart r3, r1
mov pc, lr
ENDPROC(putc)
+
+#else
+
+ENTRY(putc)
+ adr r1, 1f
+ ldmia r1, {r2, r3}
+ add r2, r2, r1
+ ldr r1, [r2, r3]
+ strb r0, [r1]
+ mov r0, #0x03 @ SYS_WRITEC
+ ARM( svc #0x123456 )
+ THUMB( svc #0xab )
+ mov pc, lr
+ .align 2
+1: .word _GLOBAL_OFFSET_TABLE_ - .
+ .word semi_writec_buf(GOT)
+ENDPROC(putc)
+
+ .bss
+ .global semi_writec_buf
+ .type semi_writec_buf, %object
+semi_writec_buf:
+ .space 4
+ .size semi_writec_buf, 4
+
+#endif
diff --git a/arch/arm/boot/compressed/head-sa1100.S b/arch/arm/boot/compressed/head-sa1100.S
index 6179d94..3115e31 100644
--- a/arch/arm/boot/compressed/head-sa1100.S
+++ b/arch/arm/boot/compressed/head-sa1100.S
@@ -11,6 +11,7 @@
#include <asm/mach-types.h>
.section ".start", "ax"
+ .arch armv4
__SA1100_start:
diff --git a/arch/arm/boot/compressed/head-shark.S b/arch/arm/boot/compressed/head-shark.S
index 089c560..92b5689 100644
--- a/arch/arm/boot/compressed/head-shark.S
+++ b/arch/arm/boot/compressed/head-shark.S
@@ -18,6 +18,7 @@
.section ".start", "ax"
+ .arch armv4
b __beginning
__ofw_data: .long 0 @ the number of memory blocks
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index fe4d9c3..032a8d9 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -11,6 +11,7 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
+ .arch armv7-a
/*
* Debugging stuff
*
@@ -805,8 +806,8 @@
.align 2
.type proc_types,#object
proc_types:
- .word 0x00000000 @ old ARM ID
- .word 0x0000f000
+ .word 0x41000000 @ old ARM ID
+ .word 0xff00f000
mov pc, lr
THUMB( nop )
mov pc, lr
diff --git a/arch/arm/include/asm/percpu.h b/arch/arm/include/asm/percpu.h
index 968c0a1..209e650 100644
--- a/arch/arm/include/asm/percpu.h
+++ b/arch/arm/include/asm/percpu.h
@@ -30,8 +30,15 @@
static inline unsigned long __my_cpu_offset(void)
{
unsigned long off;
- /* Read TPIDRPRW */
- asm("mrc p15, 0, %0, c13, c0, 4" : "=r" (off) : : "memory");
+ register unsigned long *sp asm ("sp");
+
+ /*
+ * Read TPIDRPRW.
+ * We want to allow caching the value, so avoid using volatile and
+ * instead use a fake stack read to hazard against barrier().
+ */
+ asm("mrc p15, 0, %0, c13, c0, 4" : "=r" (off) : "Q" (*sp));
+
return off;
}
#define __my_cpu_offset __my_cpu_offset()
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index f10316b..c5a5954 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -13,6 +13,7 @@
#include <linux/cpu.h>
#include <linux/cpumask.h>
+#include <linux/export.h>
#include <linux/init.h>
#include <linux/percpu.h>
#include <linux/node.h>
@@ -200,6 +201,7 @@
* cpu topology table
*/
struct cputopo_arm cpu_topology[NR_CPUS];
+EXPORT_SYMBOL_GPL(cpu_topology);
const struct cpumask *cpu_coregroup_mask(int cpu)
{
diff --git a/arch/mips/include/uapi/asm/kvm.h b/arch/mips/include/uapi/asm/kvm.h
index 3f424f5..f09ff5a 100644
--- a/arch/mips/include/uapi/asm/kvm.h
+++ b/arch/mips/include/uapi/asm/kvm.h
@@ -58,56 +58,53 @@
* bits[2..0] - Register 'sel' index.
* bits[7..3] - Register 'rd' index.
* bits[15..8] - Must be zero.
- * bits[63..16] - 1 -> CP0 registers.
+ * bits[31..16] - 1 -> CP0 registers.
+ * bits[51..32] - Must be zero.
+ * bits[63..52] - As per linux/kvm.h
*
* Other sets registers may be added in the future. Each set would
- * have its own identifier in bits[63..16].
- *
- * The addr field of struct kvm_one_reg must point to an aligned
- * 64-bit wide location. For registers that are narrower than
- * 64-bits, the value is stored in the low order bits of the location,
- * and sign extended to 64-bits.
+ * have its own identifier in bits[31..16].
*
* The registers defined in struct kvm_regs are also accessible, the
* id values for these are below.
*/
-#define KVM_REG_MIPS_R0 0
-#define KVM_REG_MIPS_R1 1
-#define KVM_REG_MIPS_R2 2
-#define KVM_REG_MIPS_R3 3
-#define KVM_REG_MIPS_R4 4
-#define KVM_REG_MIPS_R5 5
-#define KVM_REG_MIPS_R6 6
-#define KVM_REG_MIPS_R7 7
-#define KVM_REG_MIPS_R8 8
-#define KVM_REG_MIPS_R9 9
-#define KVM_REG_MIPS_R10 10
-#define KVM_REG_MIPS_R11 11
-#define KVM_REG_MIPS_R12 12
-#define KVM_REG_MIPS_R13 13
-#define KVM_REG_MIPS_R14 14
-#define KVM_REG_MIPS_R15 15
-#define KVM_REG_MIPS_R16 16
-#define KVM_REG_MIPS_R17 17
-#define KVM_REG_MIPS_R18 18
-#define KVM_REG_MIPS_R19 19
-#define KVM_REG_MIPS_R20 20
-#define KVM_REG_MIPS_R21 21
-#define KVM_REG_MIPS_R22 22
-#define KVM_REG_MIPS_R23 23
-#define KVM_REG_MIPS_R24 24
-#define KVM_REG_MIPS_R25 25
-#define KVM_REG_MIPS_R26 26
-#define KVM_REG_MIPS_R27 27
-#define KVM_REG_MIPS_R28 28
-#define KVM_REG_MIPS_R29 29
-#define KVM_REG_MIPS_R30 30
-#define KVM_REG_MIPS_R31 31
+#define KVM_REG_MIPS_R0 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 0)
+#define KVM_REG_MIPS_R1 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 1)
+#define KVM_REG_MIPS_R2 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 2)
+#define KVM_REG_MIPS_R3 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 3)
+#define KVM_REG_MIPS_R4 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 4)
+#define KVM_REG_MIPS_R5 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 5)
+#define KVM_REG_MIPS_R6 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 6)
+#define KVM_REG_MIPS_R7 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 7)
+#define KVM_REG_MIPS_R8 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 8)
+#define KVM_REG_MIPS_R9 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 9)
+#define KVM_REG_MIPS_R10 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 10)
+#define KVM_REG_MIPS_R11 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 11)
+#define KVM_REG_MIPS_R12 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 12)
+#define KVM_REG_MIPS_R13 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 13)
+#define KVM_REG_MIPS_R14 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 14)
+#define KVM_REG_MIPS_R15 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 15)
+#define KVM_REG_MIPS_R16 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 16)
+#define KVM_REG_MIPS_R17 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 17)
+#define KVM_REG_MIPS_R18 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 18)
+#define KVM_REG_MIPS_R19 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 19)
+#define KVM_REG_MIPS_R20 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 20)
+#define KVM_REG_MIPS_R21 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 21)
+#define KVM_REG_MIPS_R22 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 22)
+#define KVM_REG_MIPS_R23 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 23)
+#define KVM_REG_MIPS_R24 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 24)
+#define KVM_REG_MIPS_R25 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 25)
+#define KVM_REG_MIPS_R26 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 26)
+#define KVM_REG_MIPS_R27 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 27)
+#define KVM_REG_MIPS_R28 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 28)
+#define KVM_REG_MIPS_R29 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 29)
+#define KVM_REG_MIPS_R30 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 30)
+#define KVM_REG_MIPS_R31 (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 31)
-#define KVM_REG_MIPS_HI 32
-#define KVM_REG_MIPS_LO 33
-#define KVM_REG_MIPS_PC 34
+#define KVM_REG_MIPS_HI (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 32)
+#define KVM_REG_MIPS_LO (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 33)
+#define KVM_REG_MIPS_PC (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 34)
/*
* KVM MIPS specific structures and definitions
diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c
index d934b01..dd203e5 100644
--- a/arch/mips/kvm/kvm_mips.c
+++ b/arch/mips/kvm/kvm_mips.c
@@ -485,29 +485,35 @@
return -ENOIOCTLCMD;
}
-#define KVM_REG_MIPS_CP0_INDEX (0x10000 + 8 * 0 + 0)
-#define KVM_REG_MIPS_CP0_ENTRYLO0 (0x10000 + 8 * 2 + 0)
-#define KVM_REG_MIPS_CP0_ENTRYLO1 (0x10000 + 8 * 3 + 0)
-#define KVM_REG_MIPS_CP0_CONTEXT (0x10000 + 8 * 4 + 0)
-#define KVM_REG_MIPS_CP0_USERLOCAL (0x10000 + 8 * 4 + 2)
-#define KVM_REG_MIPS_CP0_PAGEMASK (0x10000 + 8 * 5 + 0)
-#define KVM_REG_MIPS_CP0_PAGEGRAIN (0x10000 + 8 * 5 + 1)
-#define KVM_REG_MIPS_CP0_WIRED (0x10000 + 8 * 6 + 0)
-#define KVM_REG_MIPS_CP0_HWRENA (0x10000 + 8 * 7 + 0)
-#define KVM_REG_MIPS_CP0_BADVADDR (0x10000 + 8 * 8 + 0)
-#define KVM_REG_MIPS_CP0_COUNT (0x10000 + 8 * 9 + 0)
-#define KVM_REG_MIPS_CP0_ENTRYHI (0x10000 + 8 * 10 + 0)
-#define KVM_REG_MIPS_CP0_COMPARE (0x10000 + 8 * 11 + 0)
-#define KVM_REG_MIPS_CP0_STATUS (0x10000 + 8 * 12 + 0)
-#define KVM_REG_MIPS_CP0_CAUSE (0x10000 + 8 * 13 + 0)
-#define KVM_REG_MIPS_CP0_EBASE (0x10000 + 8 * 15 + 1)
-#define KVM_REG_MIPS_CP0_CONFIG (0x10000 + 8 * 16 + 0)
-#define KVM_REG_MIPS_CP0_CONFIG1 (0x10000 + 8 * 16 + 1)
-#define KVM_REG_MIPS_CP0_CONFIG2 (0x10000 + 8 * 16 + 2)
-#define KVM_REG_MIPS_CP0_CONFIG3 (0x10000 + 8 * 16 + 3)
-#define KVM_REG_MIPS_CP0_CONFIG7 (0x10000 + 8 * 16 + 7)
-#define KVM_REG_MIPS_CP0_XCONTEXT (0x10000 + 8 * 20 + 0)
-#define KVM_REG_MIPS_CP0_ERROREPC (0x10000 + 8 * 30 + 0)
+#define MIPS_CP0_32(_R, _S) \
+ (KVM_REG_MIPS | KVM_REG_SIZE_U32 | 0x10000 | (8 * (_R) + (_S)))
+
+#define MIPS_CP0_64(_R, _S) \
+ (KVM_REG_MIPS | KVM_REG_SIZE_U64 | 0x10000 | (8 * (_R) + (_S)))
+
+#define KVM_REG_MIPS_CP0_INDEX MIPS_CP0_32(0, 0)
+#define KVM_REG_MIPS_CP0_ENTRYLO0 MIPS_CP0_64(2, 0)
+#define KVM_REG_MIPS_CP0_ENTRYLO1 MIPS_CP0_64(3, 0)
+#define KVM_REG_MIPS_CP0_CONTEXT MIPS_CP0_64(4, 0)
+#define KVM_REG_MIPS_CP0_USERLOCAL MIPS_CP0_64(4, 2)
+#define KVM_REG_MIPS_CP0_PAGEMASK MIPS_CP0_32(5, 0)
+#define KVM_REG_MIPS_CP0_PAGEGRAIN MIPS_CP0_32(5, 1)
+#define KVM_REG_MIPS_CP0_WIRED MIPS_CP0_32(6, 0)
+#define KVM_REG_MIPS_CP0_HWRENA MIPS_CP0_32(7, 0)
+#define KVM_REG_MIPS_CP0_BADVADDR MIPS_CP0_64(8, 0)
+#define KVM_REG_MIPS_CP0_COUNT MIPS_CP0_32(9, 0)
+#define KVM_REG_MIPS_CP0_ENTRYHI MIPS_CP0_64(10, 0)
+#define KVM_REG_MIPS_CP0_COMPARE MIPS_CP0_32(11, 0)
+#define KVM_REG_MIPS_CP0_STATUS MIPS_CP0_32(12, 0)
+#define KVM_REG_MIPS_CP0_CAUSE MIPS_CP0_32(13, 0)
+#define KVM_REG_MIPS_CP0_EBASE MIPS_CP0_64(15, 1)
+#define KVM_REG_MIPS_CP0_CONFIG MIPS_CP0_32(16, 0)
+#define KVM_REG_MIPS_CP0_CONFIG1 MIPS_CP0_32(16, 1)
+#define KVM_REG_MIPS_CP0_CONFIG2 MIPS_CP0_32(16, 2)
+#define KVM_REG_MIPS_CP0_CONFIG3 MIPS_CP0_32(16, 3)
+#define KVM_REG_MIPS_CP0_CONFIG7 MIPS_CP0_32(16, 7)
+#define KVM_REG_MIPS_CP0_XCONTEXT MIPS_CP0_64(20, 0)
+#define KVM_REG_MIPS_CP0_ERROREPC MIPS_CP0_64(30, 0)
static u64 kvm_mips_get_one_regs[] = {
KVM_REG_MIPS_R0,
@@ -567,8 +573,6 @@
static int kvm_mips_get_reg(struct kvm_vcpu *vcpu,
const struct kvm_one_reg *reg)
{
- u64 __user *uaddr = (u64 __user *)(long)reg->addr;
-
struct mips_coproc *cop0 = vcpu->arch.cop0;
s64 v;
@@ -631,18 +635,39 @@
default:
return -EINVAL;
}
- return put_user(v, uaddr);
+ if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U64) {
+ u64 __user *uaddr64 = (u64 __user *)(long)reg->addr;
+ return put_user(v, uaddr64);
+ } else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U32) {
+ u32 __user *uaddr32 = (u32 __user *)(long)reg->addr;
+ u32 v32 = (u32)v;
+ return put_user(v32, uaddr32);
+ } else {
+ return -EINVAL;
+ }
}
static int kvm_mips_set_reg(struct kvm_vcpu *vcpu,
const struct kvm_one_reg *reg)
{
- u64 __user *uaddr = (u64 __user *)(long)reg->addr;
struct mips_coproc *cop0 = vcpu->arch.cop0;
u64 v;
- if (get_user(v, uaddr) != 0)
- return -EFAULT;
+ if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U64) {
+ u64 __user *uaddr64 = (u64 __user *)(long)reg->addr;
+
+ if (get_user(v, uaddr64) != 0)
+ return -EFAULT;
+ } else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U32) {
+ u32 __user *uaddr32 = (u32 __user *)(long)reg->addr;
+ s32 v32;
+
+ if (get_user(v32, uaddr32) != 0)
+ return -EFAULT;
+ v = (s64)v32;
+ } else {
+ return -EINVAL;
+ }
switch (reg->id) {
case KVM_REG_MIPS_R0:
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 26807e5..6f3887d 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -176,6 +176,7 @@
#define CPU_FTR_CFAR LONG_ASM_CONST(0x0100000000000000)
#define CPU_FTR_HAS_PPR LONG_ASM_CONST(0x0200000000000000)
#define CPU_FTR_DAWR LONG_ASM_CONST(0x0400000000000000)
+#define CPU_FTR_DABRX LONG_ASM_CONST(0x0800000000000000)
#ifndef __ASSEMBLY__
@@ -394,19 +395,20 @@
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_201 | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_CAN_NAP | CPU_FTR_MMCRA | \
CPU_FTR_CP_USE_DCBTZ | CPU_FTR_STCX_CHECKS_ADDRESS | \
- CPU_FTR_HVMODE)
+ CPU_FTR_HVMODE | CPU_FTR_DABRX)
#define CPU_FTRS_POWER5 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_MMCRA | CPU_FTR_SMT | \
CPU_FTR_COHERENT_ICACHE | CPU_FTR_PURR | \
- CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB)
+ CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_DABRX)
#define CPU_FTRS_POWER6 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_MMCRA | CPU_FTR_SMT | \
CPU_FTR_COHERENT_ICACHE | \
CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
CPU_FTR_DSCR | CPU_FTR_UNALIGNED_LD_STD | \
- CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_CFAR)
+ CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_CFAR | \
+ CPU_FTR_DABRX)
#define CPU_FTRS_POWER7 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
CPU_FTR_MMCRA | CPU_FTR_SMT | \
@@ -415,7 +417,7 @@
CPU_FTR_DSCR | CPU_FTR_SAO | CPU_FTR_ASYM_SMT | \
CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \
CPU_FTR_ICSWX | CPU_FTR_CFAR | CPU_FTR_HVMODE | \
- CPU_FTR_VMX_COPY | CPU_FTR_HAS_PPR)
+ CPU_FTR_VMX_COPY | CPU_FTR_HAS_PPR | CPU_FTR_DABRX)
#define CPU_FTRS_POWER8 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\
CPU_FTR_MMCRA | CPU_FTR_SMT | \
@@ -430,14 +432,15 @@
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
CPU_FTR_PAUSE_ZERO | CPU_FTR_CELL_TB_BUG | CPU_FTR_CP_USE_DCBTZ | \
- CPU_FTR_UNALIGNED_LD_STD)
+ CPU_FTR_UNALIGNED_LD_STD | CPU_FTR_DABRX)
#define CPU_FTRS_PA6T (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP | \
- CPU_FTR_PURR | CPU_FTR_REAL_LE)
+ CPU_FTR_PURR | CPU_FTR_REAL_LE | CPU_FTR_DABRX)
#define CPU_FTRS_COMPATIBLE (CPU_FTR_USE_TB | CPU_FTR_PPCAS_ARCH_V2)
#define CPU_FTRS_A2 (CPU_FTR_USE_TB | CPU_FTR_SMT | CPU_FTR_DBELL | \
- CPU_FTR_NOEXECUTE | CPU_FTR_NODSISRALIGN | CPU_FTR_ICSWX)
+ CPU_FTR_NOEXECUTE | CPU_FTR_NODSISRALIGN | \
+ CPU_FTR_ICSWX | CPU_FTR_DABRX )
#ifdef __powerpc64__
#ifdef CONFIG_PPC_BOOK3E
diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h
index b9dd382..851bac7 100644
--- a/arch/powerpc/include/asm/kvm_asm.h
+++ b/arch/powerpc/include/asm/kvm_asm.h
@@ -54,8 +54,16 @@
#define BOOKE_INTERRUPT_DEBUG 15
/* E500 */
-#define BOOKE_INTERRUPT_SPE_UNAVAIL 32
-#define BOOKE_INTERRUPT_SPE_FP_DATA 33
+#define BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL 32
+#define BOOKE_INTERRUPT_SPE_FP_DATA_ALTIVEC_ASSIST 33
+/*
+ * TODO: Unify 32-bit and 64-bit kernel exception handlers to use same defines
+ */
+#define BOOKE_INTERRUPT_SPE_UNAVAIL BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL
+#define BOOKE_INTERRUPT_SPE_FP_DATA BOOKE_INTERRUPT_SPE_FP_DATA_ALTIVEC_ASSIST
+#define BOOKE_INTERRUPT_ALTIVEC_UNAVAIL BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL
+#define BOOKE_INTERRUPT_ALTIVEC_ASSIST \
+ BOOKE_INTERRUPT_SPE_FP_DATA_ALTIVEC_ASSIST
#define BOOKE_INTERRUPT_SPE_FP_ROUND 34
#define BOOKE_INTERRUPT_PERFORMANCE_MONITOR 35
#define BOOKE_INTERRUPT_DOORBELL 36
@@ -67,10 +75,6 @@
#define BOOKE_INTERRUPT_HV_SYSCALL 40
#define BOOKE_INTERRUPT_HV_PRIV 41
-/* altivec */
-#define BOOKE_INTERRUPT_ALTIVEC_UNAVAIL 42
-#define BOOKE_INTERRUPT_ALTIVEC_ASSIST 43
-
/* book3s */
#define BOOK3S_INTERRUPT_SYSTEM_RESET 0x100
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 1f0937d..2a45d0f 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -452,8 +452,8 @@
.mmu_features = MMU_FTRS_POWER8,
.icache_bsize = 128,
.dcache_bsize = 128,
- .oprofile_type = PPC_OPROFILE_POWER4,
- .oprofile_cpu_type = 0,
+ .oprofile_type = PPC_OPROFILE_INVALID,
+ .oprofile_cpu_type = "ppc64/ibm-compat-v1",
.cpu_setup = __setup_cpu_power8,
.cpu_restore = __restore_cpu_power8,
.platform = "power8",
@@ -506,8 +506,8 @@
.dcache_bsize = 128,
.num_pmcs = 6,
.pmc_type = PPC_PMC_IBM,
- .oprofile_cpu_type = 0,
- .oprofile_type = PPC_OPROFILE_POWER4,
+ .oprofile_cpu_type = "ppc64/power8",
+ .oprofile_type = PPC_OPROFILE_INVALID,
.cpu_setup = __setup_cpu_power8,
.cpu_restore = __restore_cpu_power8,
.platform = "power8",
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 246b11c..8741c85 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -465,20 +465,6 @@
std r0, THREAD_EBBHR(r3)
mfspr r0, SPRN_EBBRR
std r0, THREAD_EBBRR(r3)
-
- /* PMU registers made user read/(write) by EBB */
- mfspr r0, SPRN_SIAR
- std r0, THREAD_SIAR(r3)
- mfspr r0, SPRN_SDAR
- std r0, THREAD_SDAR(r3)
- mfspr r0, SPRN_SIER
- std r0, THREAD_SIER(r3)
- mfspr r0, SPRN_MMCR0
- std r0, THREAD_MMCR0(r3)
- mfspr r0, SPRN_MMCR2
- std r0, THREAD_MMCR2(r3)
- mfspr r0, SPRN_MMCRA
- std r0, THREAD_MMCRA(r3)
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
#endif
@@ -581,20 +567,6 @@
ld r0, THREAD_EBBRR(r4)
mtspr SPRN_EBBRR, r0
- /* PMU registers made user read/(write) by EBB */
- ld r0, THREAD_SIAR(r4)
- mtspr SPRN_SIAR, r0
- ld r0, THREAD_SDAR(r4)
- mtspr SPRN_SDAR, r0
- ld r0, THREAD_SIER(r4)
- mtspr SPRN_SIER, r0
- ld r0, THREAD_MMCR0(r4)
- mtspr SPRN_MMCR0, r0
- ld r0, THREAD_MMCR2(r4)
- mtspr SPRN_MMCR2, r0
- ld r0, THREAD_MMCRA(r4)
- mtspr SPRN_MMCRA, r0
-
ld r0,THREAD_TAR(r4)
mtspr SPRN_TAR,r0
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index e6eba1b..e783453 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -454,38 +454,14 @@
xori r10,r10,(MSR_FE0|MSR_FE1)
mtmsrd r10
sync
- fmr 0,0
- fmr 1,1
- fmr 2,2
- fmr 3,3
- fmr 4,4
- fmr 5,5
- fmr 6,6
- fmr 7,7
- fmr 8,8
- fmr 9,9
- fmr 10,10
- fmr 11,11
- fmr 12,12
- fmr 13,13
- fmr 14,14
- fmr 15,15
- fmr 16,16
- fmr 17,17
- fmr 18,18
- fmr 19,19
- fmr 20,20
- fmr 21,21
- fmr 22,22
- fmr 23,23
- fmr 24,24
- fmr 25,25
- fmr 26,26
- fmr 27,27
- fmr 28,28
- fmr 29,29
- fmr 30,30
- fmr 31,31
+
+#define FMR2(n) fmr (n), (n) ; fmr n+1, n+1
+#define FMR4(n) FMR2(n) ; FMR2(n+2)
+#define FMR8(n) FMR4(n) ; FMR4(n+4)
+#define FMR16(n) FMR8(n) ; FMR8(n+8)
+#define FMR32(n) FMR16(n) ; FMR16(n+16)
+ FMR32(0)
+
FTR_SECTION_ELSE
/*
* To denormalise we need to move a copy of the register to itself.
@@ -495,39 +471,25 @@
oris r10,r10,MSR_VSX@h
mtmsrd r10
sync
- XVCPSGNDP(0,0,0)
- XVCPSGNDP(1,1,1)
- XVCPSGNDP(2,2,2)
- XVCPSGNDP(3,3,3)
- XVCPSGNDP(4,4,4)
- XVCPSGNDP(5,5,5)
- XVCPSGNDP(6,6,6)
- XVCPSGNDP(7,7,7)
- XVCPSGNDP(8,8,8)
- XVCPSGNDP(9,9,9)
- XVCPSGNDP(10,10,10)
- XVCPSGNDP(11,11,11)
- XVCPSGNDP(12,12,12)
- XVCPSGNDP(13,13,13)
- XVCPSGNDP(14,14,14)
- XVCPSGNDP(15,15,15)
- XVCPSGNDP(16,16,16)
- XVCPSGNDP(17,17,17)
- XVCPSGNDP(18,18,18)
- XVCPSGNDP(19,19,19)
- XVCPSGNDP(20,20,20)
- XVCPSGNDP(21,21,21)
- XVCPSGNDP(22,22,22)
- XVCPSGNDP(23,23,23)
- XVCPSGNDP(24,24,24)
- XVCPSGNDP(25,25,25)
- XVCPSGNDP(26,26,26)
- XVCPSGNDP(27,27,27)
- XVCPSGNDP(28,28,28)
- XVCPSGNDP(29,29,29)
- XVCPSGNDP(30,30,30)
- XVCPSGNDP(31,31,31)
+
+#define XVCPSGNDP2(n) XVCPSGNDP(n,n,n) ; XVCPSGNDP(n+1,n+1,n+1)
+#define XVCPSGNDP4(n) XVCPSGNDP2(n) ; XVCPSGNDP2(n+2)
+#define XVCPSGNDP8(n) XVCPSGNDP4(n) ; XVCPSGNDP4(n+4)
+#define XVCPSGNDP16(n) XVCPSGNDP8(n) ; XVCPSGNDP8(n+8)
+#define XVCPSGNDP32(n) XVCPSGNDP16(n) ; XVCPSGNDP16(n+16)
+ XVCPSGNDP32(0)
+
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_206)
+
+BEGIN_FTR_SECTION
+ b denorm_done
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
+/*
+ * To denormalise we need to move a copy of the register to itself.
+ * For POWER8 we need to do that for all 64 VSX registers
+ */
+ XVCPSGNDP32(32)
+denorm_done:
mtspr SPRN_HSRR0,r11
mtcrf 0x80,r9
ld r9,PACA_EXGEN+EX_R9(r13)
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 7f2273c..eabeec9 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -827,6 +827,7 @@
}
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
struct resource *res = dev->resource + i;
+ struct pci_bus_region reg;
if (!res->flags)
continue;
@@ -835,8 +836,9 @@
* at 0 as unset as well, except if PCI_PROBE_ONLY is also set
* since in that case, we don't want to re-assign anything
*/
+ pcibios_resource_to_bus(dev, ®, res);
if (pci_has_flag(PCI_REASSIGN_ALL_RSRC) ||
- (res->start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
+ (reg.start == 0 && !pci_has_flag(PCI_PROBE_ONLY))) {
/* Only print message if not re-assigning */
if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC))
pr_debug("PCI:%s Resource %d %016llx-%016llx [%x] "
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index a902723..b0f3e3f 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -399,7 +399,8 @@
static inline int __set_dabr(unsigned long dabr, unsigned long dabrx)
{
mtspr(SPRN_DABR, dabr);
- mtspr(SPRN_DABRX, dabrx);
+ if (cpu_has_feature(CPU_FTR_DABRX))
+ mtspr(SPRN_DABRX, dabrx);
return 0;
}
#else
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index 5dd3ab4..ed03854 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -441,6 +441,7 @@
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *tlbe;
unsigned int gtlb_index;
+ int idx;
gtlb_index = kvmppc_get_gpr(vcpu, ra);
if (gtlb_index >= KVM44x_GUEST_TLB_SIZE) {
@@ -473,6 +474,8 @@
return EMULATE_FAIL;
}
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
if (tlbe_is_host_safe(vcpu, tlbe)) {
gva_t eaddr;
gpa_t gpaddr;
@@ -489,6 +492,8 @@
kvmppc_mmu_map(vcpu, eaddr, gpaddr, gtlb_index);
}
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
+
trace_kvm_gtlb_write(gtlb_index, tlbe->tid, tlbe->word0, tlbe->word1,
tlbe->word2);
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 1020119..5cd7ad0 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -832,6 +832,18 @@
{
int r = RESUME_HOST;
int s;
+ int idx;
+
+#ifdef CONFIG_PPC64
+ WARN_ON(local_paca->irq_happened != 0);
+#endif
+
+ /*
+ * We enter with interrupts disabled in hardware, but
+ * we need to call hard_irq_disable anyway to ensure that
+ * the software state is kept in sync.
+ */
+ hard_irq_disable();
/* update before a new last_exit_type is rewritten */
kvmppc_update_timing_stats(vcpu);
@@ -1053,6 +1065,8 @@
break;
}
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
gfn = gpaddr >> PAGE_SHIFT;
@@ -1075,6 +1089,7 @@
kvmppc_account_exit(vcpu, MMIO_EXITS);
}
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
break;
}
@@ -1098,6 +1113,8 @@
kvmppc_account_exit(vcpu, ITLB_VIRT_MISS_EXITS);
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
gfn = gpaddr >> PAGE_SHIFT;
@@ -1114,6 +1131,7 @@
kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_MACHINE_CHECK);
}
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
break;
}
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index c41a5a9..6d6f153 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -396,6 +396,7 @@
struct kvm_book3e_206_tlb_entry *gtlbe;
int tlbsel, esel;
int recal = 0;
+ int idx;
tlbsel = get_tlb_tlbsel(vcpu);
esel = get_tlb_esel(vcpu, tlbsel);
@@ -430,6 +431,8 @@
kvmppc_set_tlb1map_range(vcpu, gtlbe);
}
+ idx = srcu_read_lock(&vcpu->kvm->srcu);
+
/* Invalidate shadow mappings for the about-to-be-clobbered TLBE. */
if (tlbe_is_host_safe(vcpu, gtlbe)) {
u64 eaddr = get_tlb_eaddr(gtlbe);
@@ -444,6 +447,8 @@
kvmppc_mmu_map(vcpu, eaddr, raddr, index_of(tlbsel, esel));
}
+ srcu_read_unlock(&vcpu->kvm->srcu, idx);
+
kvmppc_set_exit_type(vcpu, EMULATED_TLBWE_EXITS);
return EMULATE_DONE;
}
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index 753cc99..19c8379 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -177,8 +177,6 @@
r = 0;
else if (strcmp(cur_cpu_spec->cpu_name, "e5500") == 0)
r = 0;
- else if (strcmp(cur_cpu_spec->cpu_name, "e6500") == 0)
- r = 0;
else
r = -ENOTSUPP;
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 845c867..29c6482 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1758,7 +1758,7 @@
}
}
}
- if ((!found) && printk_ratelimit())
+ if (!found && !nmi && printk_ratelimit())
printk(KERN_WARNING "Can't find PMC that caused IRQ\n");
/*
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 19506f9..b456b15 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -83,7 +83,11 @@
ibm_configure_pe = rtas_token("ibm,configure-pe");
ibm_configure_bridge = rtas_token("ibm,configure-bridge");
- /* necessary sanity check */
+ /*
+ * Necessary sanity check. We needn't check "get-config-addr-info"
+ * and its variant since the old firmware probably support address
+ * of domain/bus/slot/function for EEH RTAS operations.
+ */
if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) {
pr_warning("%s: RTAS service <ibm,set-eeh-option> invalid\n",
__func__);
@@ -102,12 +106,6 @@
pr_warning("%s: RTAS service <ibm,slot-error-detail> invalid\n",
__func__);
return -EINVAL;
- } else if (ibm_get_config_addr_info2 == RTAS_UNKNOWN_SERVICE &&
- ibm_get_config_addr_info == RTAS_UNKNOWN_SERVICE) {
- pr_warning("%s: RTAS service <ibm,get-config-addr-info2> and "
- "<ibm,get-config-addr-info> invalid\n",
- __func__);
- return -EINVAL;
} else if (ibm_configure_pe == RTAS_UNKNOWN_SERVICE &&
ibm_configure_bridge == RTAS_UNKNOWN_SERVICE) {
pr_warning("%s: RTAS service <ibm,configure-pe> and "
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index fb44426..d99cae8 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/irq_work.h>
+#include <linux/tick.h>
#include <asm/paravirt.h>
#include <asm/desc.h>
@@ -447,6 +448,13 @@
play_dead_common();
HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);
cpu_bringup();
+ /*
+ * commit 4b0c0f294 (tick: Cleanup NOHZ per cpu data on cpu down)
+ * clears certain data that the cpu_idle loop (which called us
+ * and that we return from) expects. The only way to get that
+ * data back is to call:
+ */
+ tick_nohz_idle_enter();
}
#else /* !CONFIG_HOTPLUG_CPU */
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 622d8a4..bf8148e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -823,6 +823,7 @@
config CRYPTO_BLOWFISH_AVX2_X86_64
tristate "Blowfish cipher algorithm (x86_64/AVX2)"
depends on X86 && 64BIT
+ depends on BROKEN
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
@@ -1299,6 +1300,7 @@
config CRYPTO_TWOFISH_AVX2_X86_64
tristate "Twofish cipher algorithm (x86_64/AVX2)"
depends on X86 && 64BIT
+ depends on BROKEN
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index aa0875f..02f490b 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -143,7 +143,7 @@
int registers = 0;
int this_registers, average;
- map->lock(map);
+ map->lock(map->lock_arg);
mem_size = sizeof(*rbtree_ctx);
mem_size += BITS_TO_LONGS(map->cache_present_nbits) * sizeof(long);
@@ -170,7 +170,7 @@
seq_printf(s, "%d nodes, %d registers, average %d registers, used %zu bytes\n",
nodes, registers, average, mem_size);
- map->unlock(map);
+ map->unlock(map->lock_arg);
return 0;
}
@@ -391,8 +391,6 @@
for (node = rb_first(&rbtree_ctx->root); node; node = rb_next(node)) {
rbnode = rb_entry(node, struct regcache_rbtree_node, node);
- if (rbnode->base_reg < min)
- continue;
if (rbnode->base_reg > max)
break;
if (rbnode->base_reg + rbnode->blklen < min)
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index 75923f2..507ee2d 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -270,7 +270,7 @@
BUG_ON(!map->cache_ops || !map->cache_ops->sync);
- map->lock(map);
+ map->lock(map->lock_arg);
/* Remember the initial bypass state */
bypass = map->cache_bypass;
dev_dbg(map->dev, "Syncing %s cache\n",
@@ -306,7 +306,7 @@
trace_regcache_sync(map->dev, name, "stop");
/* Restore the bypass state */
map->cache_bypass = bypass;
- map->unlock(map);
+ map->unlock(map->lock_arg);
return ret;
}
@@ -333,7 +333,7 @@
BUG_ON(!map->cache_ops || !map->cache_ops->sync);
- map->lock(map);
+ map->lock(map->lock_arg);
/* Remember the initial bypass state */
bypass = map->cache_bypass;
@@ -352,7 +352,7 @@
trace_regcache_sync(map->dev, name, "stop region");
/* Restore the bypass state */
map->cache_bypass = bypass;
- map->unlock(map);
+ map->unlock(map->lock_arg);
return ret;
}
@@ -372,11 +372,11 @@
*/
void regcache_cache_only(struct regmap *map, bool enable)
{
- map->lock(map);
+ map->lock(map->lock_arg);
WARN_ON(map->cache_bypass && enable);
map->cache_only = enable;
trace_regmap_cache_only(map->dev, enable);
- map->unlock(map);
+ map->unlock(map->lock_arg);
}
EXPORT_SYMBOL_GPL(regcache_cache_only);
@@ -391,9 +391,9 @@
*/
void regcache_mark_dirty(struct regmap *map)
{
- map->lock(map);
+ map->lock(map->lock_arg);
map->cache_dirty = true;
- map->unlock(map);
+ map->unlock(map->lock_arg);
}
EXPORT_SYMBOL_GPL(regcache_mark_dirty);
@@ -410,11 +410,11 @@
*/
void regcache_cache_bypass(struct regmap *map, bool enable)
{
- map->lock(map);
+ map->lock(map->lock_arg);
WARN_ON(map->cache_only && enable);
map->cache_bypass = enable;
trace_regmap_cache_bypass(map->dev, enable);
- map->unlock(map);
+ map->unlock(map->lock_arg);
}
EXPORT_SYMBOL_GPL(regcache_cache_bypass);
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 23b701f5..975719b 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -265,6 +265,7 @@
char *start = buf;
unsigned long reg, value;
struct regmap *map = file->private_data;
+ int ret;
buf_size = min(count, (sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
@@ -282,7 +283,9 @@
/* Userspace has been fiddling around behind the kernel's back */
add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE);
- regmap_write(map, reg, value);
+ ret = regmap_write(map, reg, value);
+ if (ret < 0)
+ return ret;
return buf_size;
}
#else
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 8efdfaa..ce79a59 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -629,7 +629,7 @@
struct nvme_command *cmnd;
struct nvme_iod *iod;
enum dma_data_direction dma_dir;
- int cmdid, length, result = -ENOMEM;
+ int cmdid, length, result;
u16 control;
u32 dsmgmt;
int psegs = bio_phys_segments(ns->queue, bio);
@@ -640,6 +640,7 @@
return result;
}
+ result = -ENOMEM;
iod = nvme_alloc_iod(psegs, bio->bi_size, GFP_ATOMIC);
if (!iod)
goto nomem;
@@ -977,6 +978,8 @@
if (timeout && !time_after(now, info[cmdid].timeout))
continue;
+ if (info[cmdid].ctx == CMD_CTX_CANCELLED)
+ continue;
dev_warn(nvmeq->q_dmadev, "Cancelling I/O %d\n", cmdid);
ctx = cancel_cmdid(nvmeq, cmdid, &fn);
fn(nvmeq->dev, ctx, &cqe);
@@ -1206,7 +1209,7 @@
if (addr & 3)
return ERR_PTR(-EINVAL);
- if (!length)
+ if (!length || length > INT_MAX - PAGE_SIZE)
return ERR_PTR(-EINVAL);
offset = offset_in_page(addr);
@@ -1227,7 +1230,8 @@
sg_init_table(sg, count);
for (i = 0; i < count; i++) {
sg_set_page(&sg[i], pages[i],
- min_t(int, length, PAGE_SIZE - offset), offset);
+ min_t(unsigned, length, PAGE_SIZE - offset),
+ offset);
length -= (PAGE_SIZE - offset);
offset = 0;
}
@@ -1435,7 +1439,7 @@
nvme_free_iod(dev, iod);
}
- if (!status && copy_to_user(&ucmd->result, &cmd.result,
+ if ((status >= 0) && copy_to_user(&ucmd->result, &cmd.result,
sizeof(cmd.result)))
status = -EFAULT;
@@ -1633,7 +1637,8 @@
static int nvme_setup_io_queues(struct nvme_dev *dev)
{
- int result, cpu, i, nr_io_queues, db_bar_size, q_depth;
+ struct pci_dev *pdev = dev->pci_dev;
+ int result, cpu, i, nr_io_queues, db_bar_size, q_depth, q_count;
nr_io_queues = num_online_cpus();
result = set_queue_count(dev, nr_io_queues);
@@ -1642,14 +1647,14 @@
if (result < nr_io_queues)
nr_io_queues = result;
+ q_count = nr_io_queues;
/* Deregister the admin queue's interrupt */
free_irq(dev->entry[0].vector, dev->queues[0]);
db_bar_size = 4096 + ((nr_io_queues + 1) << (dev->db_stride + 3));
if (db_bar_size > 8192) {
iounmap(dev->bar);
- dev->bar = ioremap(pci_resource_start(dev->pci_dev, 0),
- db_bar_size);
+ dev->bar = ioremap(pci_resource_start(pdev, 0), db_bar_size);
dev->dbs = ((void __iomem *)dev->bar) + 4096;
dev->queues[0]->q_db = dev->dbs;
}
@@ -1657,19 +1662,36 @@
for (i = 0; i < nr_io_queues; i++)
dev->entry[i].entry = i;
for (;;) {
- result = pci_enable_msix(dev->pci_dev, dev->entry,
- nr_io_queues);
+ result = pci_enable_msix(pdev, dev->entry, nr_io_queues);
if (result == 0) {
break;
} else if (result > 0) {
nr_io_queues = result;
continue;
} else {
- nr_io_queues = 1;
+ nr_io_queues = 0;
break;
}
}
+ if (nr_io_queues == 0) {
+ nr_io_queues = q_count;
+ for (;;) {
+ result = pci_enable_msi_block(pdev, nr_io_queues);
+ if (result == 0) {
+ for (i = 0; i < nr_io_queues; i++)
+ dev->entry[i].vector = i + pdev->irq;
+ break;
+ } else if (result > 0) {
+ nr_io_queues = result;
+ continue;
+ } else {
+ nr_io_queues = 1;
+ break;
+ }
+ }
+ }
+
result = queue_request_irq(dev, dev->queues[0], "nvme admin");
/* XXX: handle failure here */
@@ -1850,7 +1872,10 @@
{
struct nvme_dev *dev = container_of(kref, struct nvme_dev, kref);
nvme_dev_remove(dev);
- pci_disable_msix(dev->pci_dev);
+ if (dev->pci_dev->msi_enabled)
+ pci_disable_msi(dev->pci_dev);
+ else if (dev->pci_dev->msix_enabled)
+ pci_disable_msix(dev->pci_dev);
iounmap(dev->bar);
nvme_release_instance(dev);
nvme_release_prp_pools(dev);
@@ -1923,8 +1948,14 @@
INIT_LIST_HEAD(&dev->namespaces);
dev->pci_dev = pdev;
pci_set_drvdata(pdev, dev);
- dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
- dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
+
+ if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)))
+ dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
+ else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)))
+ dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+ else
+ goto disable;
+
result = nvme_set_instance(dev);
if (result)
goto disable;
@@ -1977,7 +2008,10 @@
unmap:
iounmap(dev->bar);
disable_msix:
- pci_disable_msix(pdev);
+ if (dev->pci_dev->msi_enabled)
+ pci_disable_msi(dev->pci_dev);
+ else if (dev->pci_dev->msix_enabled)
+ pci_disable_msix(dev->pci_dev);
nvme_release_instance(dev);
nvme_release_prp_pools(dev);
disable:
diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c
index fed54b0..102de2f 100644
--- a/drivers/block/nvme-scsi.c
+++ b/drivers/block/nvme-scsi.c
@@ -44,7 +44,6 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/types.h>
-#include <linux/version.h>
#include <scsi/sg.h>
#include <scsi/scsi.h>
@@ -1654,7 +1653,7 @@
}
}
-static u16 nvme_trans_modesel_get_mp(struct nvme_ns *ns, struct sg_io_hdr *hdr,
+static int nvme_trans_modesel_get_mp(struct nvme_ns *ns, struct sg_io_hdr *hdr,
u8 *mode_page, u8 page_code)
{
int res = SNTI_TRANSLATION_SUCCESS;
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index d6d3140..3063452 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -519,8 +519,8 @@
};
/*
- * Initialize an rbd client instance.
- * We own *ceph_opts.
+ * Initialize an rbd client instance. Success or not, this function
+ * consumes ceph_opts.
*/
static struct rbd_client *rbd_client_create(struct ceph_options *ceph_opts)
{
@@ -675,7 +675,8 @@
/*
* Get a ceph client with specific addr and configuration, if one does
- * not exist create it.
+ * not exist create it. Either way, ceph_opts is consumed by this
+ * function.
*/
static struct rbd_client *rbd_get_client(struct ceph_options *ceph_opts)
{
@@ -4697,8 +4698,10 @@
return ret;
}
-/* Undo whatever state changes are made by v1 or v2 image probe */
-
+/*
+ * Undo whatever state changes are made by v1 or v2 header info
+ * call.
+ */
static void rbd_dev_unprobe(struct rbd_device *rbd_dev)
{
struct rbd_image_header *header;
@@ -4902,9 +4905,10 @@
int tmp;
/*
- * Get the id from the image id object. If it's not a
- * format 2 image, we'll get ENOENT back, and we'll assume
- * it's a format 1 image.
+ * Get the id from the image id object. Unless there's an
+ * error, rbd_dev->spec->image_id will be filled in with
+ * a dynamically-allocated string, and rbd_dev->image_format
+ * will be set to either 1 or 2.
*/
ret = rbd_dev_image_id(rbd_dev);
if (ret)
@@ -4992,7 +4996,6 @@
rc = PTR_ERR(rbdc);
goto err_out_args;
}
- ceph_opts = NULL; /* rbd_dev client now owns this */
/* pick the pool */
osdc = &rbdc->client->osdc;
@@ -5027,18 +5030,18 @@
rbd_dev->mapping.read_only = read_only;
rc = rbd_dev_device_setup(rbd_dev);
- if (!rc)
- return count;
+ if (rc) {
+ rbd_dev_image_release(rbd_dev);
+ goto err_out_module;
+ }
- rbd_dev_image_release(rbd_dev);
+ return count;
+
err_out_rbd_dev:
rbd_dev_destroy(rbd_dev);
err_out_client:
rbd_put_client(rbdc);
err_out_args:
- if (ceph_opts)
- ceph_destroy_options(ceph_opts);
- kfree(rbd_opts);
rbd_spec_put(spec);
err_out_module:
module_put(THIS_MODULE);
diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index a97bb6c..c3dc1c0 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -863,7 +863,7 @@
{ .compatible = "fsl,imx27-sahara" },
{ /* sentinel */ }
};
-MODULE_DEVICE_TABLE(platform, sahara_dt_ids);
+MODULE_DEVICE_TABLE(of, sahara_dt_ids);
static int sahara_probe(struct platform_device *pdev)
{
diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c
index 3cfd093..82430ad 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_display.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
@@ -1462,7 +1462,7 @@
size_t addr = 0;
struct gtt_range *gt;
struct drm_gem_object *obj;
- int ret;
+ int ret = 0;
/* if we want to turn of the cursor ignore width and height */
if (!handle) {
@@ -1499,7 +1499,8 @@
if (obj->size < width * height * 4) {
dev_dbg(dev->dev, "buffer is to small\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto unref_cursor;
}
gt = container_of(obj, struct gtt_range, gem);
@@ -1508,7 +1509,7 @@
ret = psb_gtt_pin(gt);
if (ret) {
dev_err(dev->dev, "Can not pin down handle 0x%x\n", handle);
- return ret;
+ goto unref_cursor;
}
addr = gt->offset; /* Or resource.start ??? */
@@ -1532,9 +1533,14 @@
struct gtt_range, gem);
psb_gtt_unpin(gt);
drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
- psb_intel_crtc->cursor_obj = obj;
}
- return 0;
+
+ psb_intel_crtc->cursor_obj = obj;
+ return ret;
+
+unref_cursor:
+ drm_gem_object_unreference(obj);
+ return ret;
}
static int cdv_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
@@ -1750,6 +1756,19 @@
kfree(psb_intel_crtc);
}
+static void cdv_intel_crtc_disable(struct drm_crtc *crtc)
+{
+ struct gtt_range *gt;
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+ if (crtc->fb) {
+ gt = to_psb_fb(crtc->fb)->gtt;
+ psb_gtt_unpin(gt);
+ }
+}
+
const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
.dpms = cdv_intel_crtc_dpms,
.mode_fixup = cdv_intel_crtc_mode_fixup,
@@ -1757,6 +1776,7 @@
.mode_set_base = cdv_intel_pipe_set_base,
.prepare = cdv_intel_crtc_prepare,
.commit = cdv_intel_crtc_commit,
+ .disable = cdv_intel_crtc_disable,
};
const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 1534e22..8b1b6d9 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -121,8 +121,8 @@
unsigned long address;
int ret;
unsigned long pfn;
- /* FIXME: assumes fb at stolen base which may not be true */
- unsigned long phys_addr = (unsigned long)dev_priv->stolen_base;
+ unsigned long phys_addr = (unsigned long)dev_priv->stolen_base +
+ psbfb->gtt->offset;
page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
address = (unsigned long)vmf->virtual_address - (vmf->pgoff << PAGE_SHIFT);
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index 6e8f42b..6666493 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -843,7 +843,7 @@
struct gtt_range *cursor_gt = psb_intel_crtc->cursor_gt;
struct drm_gem_object *obj;
void *tmp_dst, *tmp_src;
- int ret, i, cursor_pages;
+ int ret = 0, i, cursor_pages;
/* if we want to turn of the cursor ignore width and height */
if (!handle) {
@@ -880,7 +880,8 @@
if (obj->size < width * height * 4) {
dev_dbg(dev->dev, "buffer is to small\n");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto unref_cursor;
}
gt = container_of(obj, struct gtt_range, gem);
@@ -889,13 +890,14 @@
ret = psb_gtt_pin(gt);
if (ret) {
dev_err(dev->dev, "Can not pin down handle 0x%x\n", handle);
- return ret;
+ goto unref_cursor;
}
if (dev_priv->ops->cursor_needs_phys) {
if (cursor_gt == NULL) {
dev_err(dev->dev, "No hardware cursor mem available");
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto unref_cursor;
}
/* Prevent overflow */
@@ -936,9 +938,14 @@
struct gtt_range, gem);
psb_gtt_unpin(gt);
drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
- psb_intel_crtc->cursor_obj = obj;
}
- return 0;
+
+ psb_intel_crtc->cursor_obj = obj;
+ return ret;
+
+unref_cursor:
+ drm_gem_object_unreference(obj);
+ return ret;
}
static int psb_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
@@ -1150,6 +1157,19 @@
kfree(psb_intel_crtc);
}
+static void psb_intel_crtc_disable(struct drm_crtc *crtc)
+{
+ struct gtt_range *gt;
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+ if (crtc->fb) {
+ gt = to_psb_fb(crtc->fb)->gtt;
+ psb_gtt_unpin(gt);
+ }
+}
+
const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
.dpms = psb_intel_crtc_dpms,
.mode_fixup = psb_intel_crtc_mode_fixup,
@@ -1157,6 +1177,7 @@
.mode_set_base = psb_intel_pipe_set_base,
.prepare = psb_intel_crtc_prepare,
.commit = psb_intel_crtc_commit,
+ .disable = psb_intel_crtc_disable,
};
const struct drm_crtc_funcs psb_intel_crtc_funcs = {
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 4c47b44..d4ea6c2 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1777,10 +1777,13 @@
* arranged in priority order.
*/
intel_ddc_get_modes(connector, &intel_sdvo->ddc);
- if (list_empty(&connector->probed_modes) == false)
- goto end;
- /* Fetch modes from VBT */
+ /*
+ * Fetch modes from VBT. For SDVO prefer the VBT mode since some
+ * SDVO->LVDS transcoders can't cope with the EDID mode. Since
+ * drm_mode_probed_add adds the mode at the head of the list we add it
+ * last.
+ */
if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
newmode = drm_mode_duplicate(connector->dev,
dev_priv->sdvo_lvds_vbt_mode);
@@ -1792,7 +1795,6 @@
}
}
-end:
list_for_each_entry(newmode, &connector->probed_modes, head) {
if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
intel_sdvo->sdvo_lvds_fixed_mode =
@@ -2790,12 +2792,6 @@
SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
}
- /* Only enable the hotplug irq if we need it, to work around noisy
- * hotplug lines.
- */
- if (intel_sdvo->hotplug_active)
- intel_encoder->hpd_pin = HPD_SDVO_B ? HPD_SDVO_B : HPD_SDVO_C;
-
intel_encoder->compute_config = intel_sdvo_compute_config;
intel_encoder->disable = intel_disable_sdvo;
intel_encoder->mode_set = intel_sdvo_mode_set;
@@ -2814,6 +2810,14 @@
goto err_output;
}
+ /* Only enable the hotplug irq if we need it, to work around noisy
+ * hotplug lines.
+ */
+ if (intel_sdvo->hotplug_active) {
+ intel_encoder->hpd_pin =
+ intel_sdvo->is_sdvob ? HPD_SDVO_B : HPD_SDVO_C;
+ }
+
/*
* Cloning SDVO with anything is often impossible, since the SDVO
* encoder can request a special input timing mode. And even if that's
diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
index 7e76922..f920619 100644
--- a/drivers/hwmon/adm1021.c
+++ b/drivers/hwmon/adm1021.c
@@ -331,26 +331,68 @@
man_id = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID);
dev_id = i2c_smbus_read_byte_data(client, ADM1021_REG_DEV_ID);
+ if (man_id < 0 || dev_id < 0)
+ return -ENODEV;
+
if (man_id == 0x4d && dev_id == 0x01)
type_name = "max1617a";
else if (man_id == 0x41) {
if ((dev_id & 0xF0) == 0x30)
type_name = "adm1023";
- else
+ else if ((dev_id & 0xF0) == 0x00)
type_name = "adm1021";
+ else
+ return -ENODEV;
} else if (man_id == 0x49)
type_name = "thmc10";
else if (man_id == 0x23)
type_name = "gl523sm";
else if (man_id == 0x54)
type_name = "mc1066";
- /* LM84 Mfr ID in a different place, and it has more unused bits */
- else if (conv_rate == 0x00
- && (config & 0x7F) == 0x00
- && (status & 0xAB) == 0x00)
- type_name = "lm84";
- else
- type_name = "max1617";
+ else {
+ int lte, rte, lhi, rhi, llo, rlo;
+
+ /* extra checks for LM84 and MAX1617 to avoid misdetections */
+
+ llo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(0));
+ rlo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(1));
+
+ /* fail if any of the additional register reads failed */
+ if (llo < 0 || rlo < 0)
+ return -ENODEV;
+
+ lte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(0));
+ rte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(1));
+ lhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(0));
+ rhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(1));
+
+ /*
+ * Fail for negative temperatures and negative high limits.
+ * This check also catches read errors on the tested registers.
+ */
+ if ((s8)lte < 0 || (s8)rte < 0 || (s8)lhi < 0 || (s8)rhi < 0)
+ return -ENODEV;
+
+ /* fail if all registers hold the same value */
+ if (lte == rte && lte == lhi && lte == rhi && lte == llo
+ && lte == rlo)
+ return -ENODEV;
+
+ /*
+ * LM84 Mfr ID is in a different place,
+ * and it has more unused bits.
+ */
+ if (conv_rate == 0x00
+ && (config & 0x7F) == 0x00
+ && (status & 0xAB) == 0x00) {
+ type_name = "lm84";
+ } else {
+ /* fail if low limits are larger than high limits */
+ if ((s8)llo > lhi || (s8)rlo > rhi)
+ return -ENODEV;
+ type_name = "max1617";
+ }
+ }
pr_debug("Detected chip %s at adapter %d, address 0x%02x.\n",
type_name, i2c_adapter_id(adapter), client->addr);
diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index 60cfae5..eab593e 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -89,7 +89,7 @@
if ((mask & hspi_read(hspi, SPSR)) == val)
return 0;
- msleep(20);
+ udelay(10);
}
dev_err(hspi->dev, "timeout\n");
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 35f60bd..637d728 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -1487,7 +1487,7 @@
return 0;
err_spi_register_master:
- free_irq(board_dat->pdev->irq, board_dat);
+ free_irq(board_dat->pdev->irq, data);
err_request_irq:
pch_spi_free_resources(board_dat, data);
err_spi_get_resources:
@@ -1667,6 +1667,7 @@
pd_dev = platform_device_alloc("pch-spi", i);
if (!pd_dev) {
dev_err(&pdev->dev, "platform_device_alloc failed\n");
+ retval = -ENOMEM;
goto err_platform_device;
}
pd_dev_save->pd_save[i] = pd_dev;
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index e1d7696..34d18dc 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -267,7 +267,6 @@
{
struct xilinx_spi *xspi = spi_master_get_devdata(spi->master);
u32 ipif_ier;
- u16 cr;
/* We get here with transmitter inhibited */
@@ -276,7 +275,6 @@
xspi->remaining_bytes = t->len;
INIT_COMPLETION(xspi->done);
- xilinx_spi_fill_tx_fifo(xspi);
/* Enable the transmit empty interrupt, which we use to determine
* progress on the transmission.
@@ -285,12 +283,41 @@
xspi->write_fn(ipif_ier | XSPI_INTR_TX_EMPTY,
xspi->regs + XIPIF_V123B_IIER_OFFSET);
- /* Start the transfer by not inhibiting the transmitter any longer */
- cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET) &
- ~XSPI_CR_TRANS_INHIBIT;
- xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET);
+ for (;;) {
+ u16 cr;
+ u8 sr;
- wait_for_completion(&xspi->done);
+ xilinx_spi_fill_tx_fifo(xspi);
+
+ /* Start the transfer by not inhibiting the transmitter any
+ * longer
+ */
+ cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET) &
+ ~XSPI_CR_TRANS_INHIBIT;
+ xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET);
+
+ wait_for_completion(&xspi->done);
+
+ /* A transmit has just completed. Process received data and
+ * check for more data to transmit. Always inhibit the
+ * transmitter while the Isr refills the transmit register/FIFO,
+ * or make sure it is stopped if we're done.
+ */
+ cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET);
+ xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT,
+ xspi->regs + XSPI_CR_OFFSET);
+
+ /* Read out all the data from the Rx FIFO */
+ sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
+ while ((sr & XSPI_SR_RX_EMPTY_MASK) == 0) {
+ xspi->rx_fn(xspi);
+ sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
+ }
+
+ /* See if there is more data to send */
+ if (!xspi->remaining_bytes > 0)
+ break;
+ }
/* Disable the transmit empty interrupt */
xspi->write_fn(ipif_ier, xspi->regs + XIPIF_V123B_IIER_OFFSET);
@@ -314,38 +341,7 @@
xspi->write_fn(ipif_isr, xspi->regs + XIPIF_V123B_IISR_OFFSET);
if (ipif_isr & XSPI_INTR_TX_EMPTY) { /* Transmission completed */
- u16 cr;
- u8 sr;
-
- /* A transmit has just completed. Process received data and
- * check for more data to transmit. Always inhibit the
- * transmitter while the Isr refills the transmit register/FIFO,
- * or make sure it is stopped if we're done.
- */
- cr = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET);
- xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT,
- xspi->regs + XSPI_CR_OFFSET);
-
- /* Read out all the data from the Rx FIFO */
- sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
- while ((sr & XSPI_SR_RX_EMPTY_MASK) == 0) {
- xspi->rx_fn(xspi);
- sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
- }
-
- /* See if there is more data to send */
- if (xspi->remaining_bytes > 0) {
- xilinx_spi_fill_tx_fifo(xspi);
- /* Start the transfer by not inhibiting the
- * transmitter any longer
- */
- xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET);
- } else {
- /* No more data to send.
- * Indicate the transfer is completed.
- */
- complete(&xspi->done);
- }
+ complete(&xspi->done);
}
return IRQ_HANDLED;
diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c
index cc072c6..0f0493c 100644
--- a/drivers/xen/tmem.c
+++ b/drivers/xen/tmem.c
@@ -379,10 +379,10 @@
#ifdef CONFIG_FRONTSWAP
if (tmem_enabled && frontswap) {
char *s = "";
- struct frontswap_ops *old_ops =
- frontswap_register_ops(&tmem_frontswap_ops);
+ struct frontswap_ops *old_ops;
tmem_frontswap_poolid = -1;
+ old_ops = frontswap_register_ops(&tmem_frontswap_ops);
if (IS_ERR(old_ops) || old_ops) {
if (IS_ERR(old_ops))
return PTR_ERR(old_ops);
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index 202dd3d6..ebbf680 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -191,27 +191,23 @@
}
/**
- * Encode the flock and fcntl locks for the given inode into the pagelist.
- * Format is: #fcntl locks, sequential fcntl locks, #flock locks,
- * sequential flock locks.
- * Must be called with lock_flocks() already held.
- * If we encounter more of a specific lock type than expected,
- * we return the value 1.
+ * Encode the flock and fcntl locks for the given inode into the ceph_filelock
+ * array. Must be called with lock_flocks() already held.
+ * If we encounter more of a specific lock type than expected, return -ENOSPC.
*/
-int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
- int num_fcntl_locks, int num_flock_locks)
+int ceph_encode_locks_to_buffer(struct inode *inode,
+ struct ceph_filelock *flocks,
+ int num_fcntl_locks, int num_flock_locks)
{
struct file_lock *lock;
- struct ceph_filelock cephlock;
int err = 0;
int seen_fcntl = 0;
int seen_flock = 0;
+ int l = 0;
dout("encoding %d flock and %d fcntl locks", num_flock_locks,
num_fcntl_locks);
- err = ceph_pagelist_append(pagelist, &num_fcntl_locks, sizeof(u32));
- if (err)
- goto fail;
+
for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
if (lock->fl_flags & FL_POSIX) {
++seen_fcntl;
@@ -219,19 +215,12 @@
err = -ENOSPC;
goto fail;
}
- err = lock_to_ceph_filelock(lock, &cephlock);
+ err = lock_to_ceph_filelock(lock, &flocks[l]);
if (err)
goto fail;
- err = ceph_pagelist_append(pagelist, &cephlock,
- sizeof(struct ceph_filelock));
+ ++l;
}
- if (err)
- goto fail;
}
-
- err = ceph_pagelist_append(pagelist, &num_flock_locks, sizeof(u32));
- if (err)
- goto fail;
for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
if (lock->fl_flags & FL_FLOCK) {
++seen_flock;
@@ -239,19 +228,51 @@
err = -ENOSPC;
goto fail;
}
- err = lock_to_ceph_filelock(lock, &cephlock);
+ err = lock_to_ceph_filelock(lock, &flocks[l]);
if (err)
goto fail;
- err = ceph_pagelist_append(pagelist, &cephlock,
- sizeof(struct ceph_filelock));
+ ++l;
}
- if (err)
- goto fail;
}
fail:
return err;
}
+/**
+ * Copy the encoded flock and fcntl locks into the pagelist.
+ * Format is: #fcntl locks, sequential fcntl locks, #flock locks,
+ * sequential flock locks.
+ * Returns zero on success.
+ */
+int ceph_locks_to_pagelist(struct ceph_filelock *flocks,
+ struct ceph_pagelist *pagelist,
+ int num_fcntl_locks, int num_flock_locks)
+{
+ int err = 0;
+ __le32 nlocks;
+
+ nlocks = cpu_to_le32(num_fcntl_locks);
+ err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
+ if (err)
+ goto out_fail;
+
+ err = ceph_pagelist_append(pagelist, flocks,
+ num_fcntl_locks * sizeof(*flocks));
+ if (err)
+ goto out_fail;
+
+ nlocks = cpu_to_le32(num_flock_locks);
+ err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
+ if (err)
+ goto out_fail;
+
+ err = ceph_pagelist_append(pagelist,
+ &flocks[num_fcntl_locks],
+ num_flock_locks * sizeof(*flocks));
+out_fail:
+ return err;
+}
+
/*
* Given a pointer to a lock, convert it to a ceph filelock
*/
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 4f22671..4d29203 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2478,39 +2478,44 @@
if (recon_state->flock) {
int num_fcntl_locks, num_flock_locks;
- struct ceph_pagelist_cursor trunc_point;
+ struct ceph_filelock *flocks;
- ceph_pagelist_set_cursor(pagelist, &trunc_point);
- do {
- lock_flocks();
- ceph_count_locks(inode, &num_fcntl_locks,
- &num_flock_locks);
- rec.v2.flock_len = (2*sizeof(u32) +
- (num_fcntl_locks+num_flock_locks) *
- sizeof(struct ceph_filelock));
- unlock_flocks();
-
- /* pre-alloc pagelist */
- ceph_pagelist_truncate(pagelist, &trunc_point);
- err = ceph_pagelist_append(pagelist, &rec, reclen);
- if (!err)
- err = ceph_pagelist_reserve(pagelist,
- rec.v2.flock_len);
-
- /* encode locks */
- if (!err) {
- lock_flocks();
- err = ceph_encode_locks(inode,
- pagelist,
- num_fcntl_locks,
- num_flock_locks);
- unlock_flocks();
- }
- } while (err == -ENOSPC);
+encode_again:
+ lock_flocks();
+ ceph_count_locks(inode, &num_fcntl_locks, &num_flock_locks);
+ unlock_flocks();
+ flocks = kmalloc((num_fcntl_locks+num_flock_locks) *
+ sizeof(struct ceph_filelock), GFP_NOFS);
+ if (!flocks) {
+ err = -ENOMEM;
+ goto out_free;
+ }
+ lock_flocks();
+ err = ceph_encode_locks_to_buffer(inode, flocks,
+ num_fcntl_locks,
+ num_flock_locks);
+ unlock_flocks();
+ if (err) {
+ kfree(flocks);
+ if (err == -ENOSPC)
+ goto encode_again;
+ goto out_free;
+ }
+ /*
+ * number of encoded locks is stable, so copy to pagelist
+ */
+ rec.v2.flock_len = cpu_to_le32(2*sizeof(u32) +
+ (num_fcntl_locks+num_flock_locks) *
+ sizeof(struct ceph_filelock));
+ err = ceph_pagelist_append(pagelist, &rec, reclen);
+ if (!err)
+ err = ceph_locks_to_pagelist(flocks, pagelist,
+ num_fcntl_locks,
+ num_flock_locks);
+ kfree(flocks);
} else {
err = ceph_pagelist_append(pagelist, &rec, reclen);
}
-
out_free:
kfree(path);
out_dput:
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 8696be2f..7ccfdb4 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -822,8 +822,13 @@
extern int ceph_lock(struct file *file, int cmd, struct file_lock *fl);
extern int ceph_flock(struct file *file, int cmd, struct file_lock *fl);
extern void ceph_count_locks(struct inode *inode, int *p_num, int *f_num);
-extern int ceph_encode_locks(struct inode *i, struct ceph_pagelist *p,
- int p_locks, int f_locks);
+extern int ceph_encode_locks_to_buffer(struct inode *inode,
+ struct ceph_filelock *flocks,
+ int num_fcntl_locks,
+ int num_flock_locks);
+extern int ceph_locks_to_pagelist(struct ceph_filelock *flocks,
+ struct ceph_pagelist *pagelist,
+ int num_fcntl_locks, int num_flock_locks);
extern int lock_to_ceph_filelock(struct file_lock *fl, struct ceph_filelock *c);
/* debugfs.c */
diff --git a/include/asm-generic/kvm_para.h b/include/asm-generic/kvm_para.h
index 9d96605..fa25bec 100644
--- a/include/asm-generic/kvm_para.h
+++ b/include/asm-generic/kvm_para.h
@@ -18,4 +18,9 @@
return 0;
}
+static inline bool kvm_para_available(void)
+{
+ return false;
+}
+
#endif
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index a5c86fc..d88c8ee 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -783,6 +783,7 @@
#define KVM_REG_IA64 0x3000000000000000ULL
#define KVM_REG_ARM 0x4000000000000000ULL
#define KVM_REG_S390 0x5000000000000000ULL
+#define KVM_REG_MIPS 0x7000000000000000ULL
#define KVM_REG_SIZE_SHIFT 52
#define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
diff --git a/kernel/softirq.c b/kernel/softirq.c
index b5197dc..3d6833f 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -195,8 +195,12 @@
EXPORT_SYMBOL(local_bh_enable_ip);
/*
- * We restart softirq processing for at most 2 ms,
- * and if need_resched() is not set.
+ * We restart softirq processing for at most MAX_SOFTIRQ_RESTART times,
+ * but break the loop if need_resched() is set or after 2 ms.
+ * The MAX_SOFTIRQ_TIME provides a nice upper bound in most cases, but in
+ * certain cases, such as stop_machine(), jiffies may cease to
+ * increment and so we need the MAX_SOFTIRQ_RESTART limit as
+ * well to make sure we eventually return from this method.
*
* These limits have been established via experimentation.
* The two things to balance is latency against fairness -
@@ -204,6 +208,7 @@
* should not be able to lock up the box.
*/
#define MAX_SOFTIRQ_TIME msecs_to_jiffies(2)
+#define MAX_SOFTIRQ_RESTART 10
asmlinkage void __do_softirq(void)
{
@@ -212,6 +217,7 @@
unsigned long end = jiffies + MAX_SOFTIRQ_TIME;
int cpu;
unsigned long old_flags = current->flags;
+ int max_restart = MAX_SOFTIRQ_RESTART;
/*
* Mask out PF_MEMALLOC s current task context is borrowed for the
@@ -265,7 +271,8 @@
pending = local_softirq_pending();
if (pending) {
- if (time_before(jiffies, end) && !need_resched())
+ if (time_before(jiffies, end) && !need_resched() &&
+ --max_restart)
goto restart;
wakeup_softirqd();
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 1a41023..e71a8be 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -652,8 +652,6 @@
ARCH_TRACE_CLOCKS
};
-int trace_clock_id;
-
/*
* trace_parser_get_init - gets the buffer for trace parser
*/
@@ -2826,7 +2824,7 @@
iter->iter_flags |= TRACE_FILE_ANNOTATE;
/* Output in nanoseconds only if we are using a clock in nanoseconds. */
- if (trace_clocks[trace_clock_id].in_ns)
+ if (trace_clocks[tr->clock_id].in_ns)
iter->iter_flags |= TRACE_FILE_TIME_IN_NS;
/* stop the trace while dumping if we are not opening "snapshot" */
@@ -3825,7 +3823,7 @@
iter->iter_flags |= TRACE_FILE_LAT_FMT;
/* Output in nanoseconds only if we are using a clock in nanoseconds. */
- if (trace_clocks[trace_clock_id].in_ns)
+ if (trace_clocks[tr->clock_id].in_ns)
iter->iter_flags |= TRACE_FILE_TIME_IN_NS;
iter->cpu_file = tc->cpu;
@@ -5095,7 +5093,7 @@
cnt = ring_buffer_bytes_cpu(trace_buf->buffer, cpu);
trace_seq_printf(s, "bytes: %ld\n", cnt);
- if (trace_clocks[trace_clock_id].in_ns) {
+ if (trace_clocks[tr->clock_id].in_ns) {
/* local or global for trace_clock */
t = ns2usecs(ring_buffer_oldest_event_ts(trace_buf->buffer, cpu));
usec_rem = do_div(t, USEC_PER_SEC);
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 711ca7d..20572ed 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -700,8 +700,6 @@
extern unsigned long trace_flags;
-extern int trace_clock_id;
-
/* Standard output formatting function used for function return traces */
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
diff --git a/net/9p/client.c b/net/9p/client.c
index 8eb7542..addc116c 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -562,36 +562,19 @@
if (!p9_is_proto_dotl(c)) {
/* Error is reported in string format */
- uint16_t len;
- /* 7 = header size for RERROR, 2 is the size of string len; */
- int inline_len = in_hdrlen - (7 + 2);
+ int len;
+ /* 7 = header size for RERROR; */
+ int inline_len = in_hdrlen - 7;
- /* Read the size of error string */
- err = p9pdu_readf(req->rc, c->proto_version, "w", &len);
- if (err)
- goto out_err;
-
- ename = kmalloc(len + 1, GFP_NOFS);
- if (!ename) {
- err = -ENOMEM;
+ len = req->rc->size - req->rc->offset;
+ if (len > (P9_ZC_HDR_SZ - 7)) {
+ err = -EFAULT;
goto out_err;
}
- if (len <= inline_len) {
- /* We have error in protocol buffer itself */
- if (pdu_read(req->rc, ename, len)) {
- err = -EFAULT;
- goto out_free;
- }
- } else {
- /*
- * Part of the data is in user space buffer.
- */
- if (pdu_read(req->rc, ename, inline_len)) {
- err = -EFAULT;
- goto out_free;
-
- }
+ ename = &req->rc->sdata[req->rc->offset];
+ if (len > inline_len) {
+ /* We have error in external buffer */
if (kern_buf) {
memcpy(ename + inline_len, uidata,
len - inline_len);
@@ -600,19 +583,19 @@
uidata, len - inline_len);
if (err) {
err = -EFAULT;
- goto out_free;
+ goto out_err;
}
}
}
- ename[len] = 0;
- if (p9_is_proto_dotu(c)) {
- /* For dotu we also have error code */
- err = p9pdu_readf(req->rc,
- c->proto_version, "d", &ecode);
- if (err)
- goto out_free;
+ ename = NULL;
+ err = p9pdu_readf(req->rc, c->proto_version, "s?d",
+ &ename, &ecode);
+ if (err)
+ goto out_err;
+
+ if (p9_is_proto_dotu(c))
err = -ecode;
- }
+
if (!err || !IS_ERR_VALUE(err)) {
err = p9_errstr2errno(ename, strlen(ename));
@@ -628,8 +611,6 @@
}
return err;
-out_free:
- kfree(ename);
out_err:
p9_debug(P9_DEBUG_ERROR, "couldn't parse error%d\n", err);
return err;
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index d5953b8..3a246a6 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1675,13 +1675,13 @@
__register_request(osdc, req);
__unregister_linger_request(osdc, req);
}
+ reset_changed_osds(osdc);
mutex_unlock(&osdc->request_mutex);
if (needmap) {
dout("%d requests for down osds, need new map\n", needmap);
ceph_monc_request_next_osdmap(&osdc->client->monc);
}
- reset_changed_osds(osdc);
}
