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authorAlex Shi <alex.shi@linaro.org>2014-03-28 10:58:52 +0800
committerAlex Shi <alex.shi@linaro.org>2014-03-28 10:58:52 +0800
commit02e11cd17332186b4cf9ed88db6e63b30043be54 (patch)
treebc3a5683d5d3139e1825b69796fb8480808ba46f /arch
parentd3222d77b27a07a4b200d1b0b792e8e3bdf30396 (diff)
parent10f8245e0d3650144b034142c8f91e5d15c392ab (diff)
downloadlinaro-lsk-02e11cd17332186b4cf9ed88db6e63b30043be54.tar.gz
Merge tag 'v3.10.34' into linux-linaro-lsk
This is 3.10.34 stable release
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/asm/spinlock.h2
-rw-r--r--arch/arm/kernel/setup.c30
-rw-r--r--arch/arm/mach-sa1100/include/mach/collie.h2
-rw-r--r--arch/mips/include/asm/mipsregs.h1
-rw-r--r--arch/powerpc/kernel/reloc_64.S1
-rw-r--r--arch/x86/kernel/head_32.S7
-rw-r--r--arch/x86/kernel/head_64.S6
-rw-r--r--arch/x86/kernel/i387.c15
-rw-r--r--arch/x86/kernel/quirks.c2
-rw-r--r--arch/x86/kvm/svm.c6
10 files changed, 58 insertions, 14 deletions
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index dd64cc6f9cb..b07c09e5a0a 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -107,7 +107,7 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
" subs %1, %0, %0, ror #16\n"
" addeq %0, %0, %4\n"
" strexeq %2, %0, [%3]"
- : "=&r" (slock), "=&r" (contended), "=r" (res)
+ : "=&r" (slock), "=&r" (contended), "=&r" (res)
: "r" (&lock->slock), "I" (1 << TICKET_SHIFT)
: "cc");
} while (res);
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 6002fe06b12..1e839e0ed5b 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -544,6 +544,7 @@ void __init dump_machine_table(void)
int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
{
struct membank *bank = &meminfo.bank[meminfo.nr_banks];
+ u64 aligned_start;
if (meminfo.nr_banks >= NR_BANKS) {
printk(KERN_CRIT "NR_BANKS too low, "
@@ -556,10 +557,16 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
* Size is appropriately rounded down, start is rounded up.
*/
size -= start & ~PAGE_MASK;
- bank->start = PAGE_ALIGN(start);
+ aligned_start = PAGE_ALIGN(start);
-#ifndef CONFIG_ARM_LPAE
- if (bank->start + size < bank->start) {
+#ifndef CONFIG_ARCH_PHYS_ADDR_T_64BIT
+ if (aligned_start > ULONG_MAX) {
+ printk(KERN_CRIT "Ignoring memory at 0x%08llx outside "
+ "32-bit physical address space\n", (long long)start);
+ return -EINVAL;
+ }
+
+ if (aligned_start + size > ULONG_MAX) {
printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in "
"32-bit physical address space\n", (long long)start);
/*
@@ -567,10 +574,25 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
* 32 bits, we use ULONG_MAX as the upper limit rather than 4GB.
* This means we lose a page after masking.
*/
- size = ULONG_MAX - bank->start;
+ size = ULONG_MAX - aligned_start;
}
#endif
+ if (aligned_start < PHYS_OFFSET) {
+ if (aligned_start + size <= PHYS_OFFSET) {
+ pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n",
+ aligned_start, aligned_start + size);
+ return -EINVAL;
+ }
+
+ pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n",
+ aligned_start, (u64)PHYS_OFFSET);
+
+ size -= PHYS_OFFSET - aligned_start;
+ aligned_start = PHYS_OFFSET;
+ }
+
+ bank->start = aligned_start;
bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1);
/*
diff --git a/arch/arm/mach-sa1100/include/mach/collie.h b/arch/arm/mach-sa1100/include/mach/collie.h
index f33679d2d3e..50e1d850ee2 100644
--- a/arch/arm/mach-sa1100/include/mach/collie.h
+++ b/arch/arm/mach-sa1100/include/mach/collie.h
@@ -13,6 +13,8 @@
#ifndef __ASM_ARCH_COLLIE_H
#define __ASM_ARCH_COLLIE_H
+#include "hardware.h" /* Gives GPIO_MAX */
+
extern void locomolcd_power(int on);
#define COLLIE_SCOOP_GPIO_BASE (GPIO_MAX + 1)
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 87e6207b05e..3d0074e1059 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -14,6 +14,7 @@
#define _ASM_MIPSREGS_H
#include <linux/linkage.h>
+#include <linux/types.h>
#include <asm/hazards.h>
#include <asm/war.h>
diff --git a/arch/powerpc/kernel/reloc_64.S b/arch/powerpc/kernel/reloc_64.S
index b47a0e1ab00..c712ecec13b 100644
--- a/arch/powerpc/kernel/reloc_64.S
+++ b/arch/powerpc/kernel/reloc_64.S
@@ -81,6 +81,7 @@ _GLOBAL(relocate)
6: blr
+.balign 8
p_dyn: .llong __dynamic_start - 0b
p_rela: .llong __rela_dyn_start - 0b
p_st: .llong _stext - 0b
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 73afd11799c..df63cae573e 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -566,6 +566,10 @@ ENDPROC(early_idt_handlers)
/* This is global to keep gas from relaxing the jumps */
ENTRY(early_idt_handler)
cld
+
+ cmpl $2,(%esp) # X86_TRAP_NMI
+ je is_nmi # Ignore NMI
+
cmpl $2,%ss:early_recursion_flag
je hlt_loop
incl %ss:early_recursion_flag
@@ -616,8 +620,9 @@ ex_entry:
pop %edx
pop %ecx
pop %eax
- addl $8,%esp /* drop vector number and error code */
decl %ss:early_recursion_flag
+is_nmi:
+ addl $8,%esp /* drop vector number and error code */
iret
ENDPROC(early_idt_handler)
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index a8368608ab4..f2a9a2aa98f 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -343,6 +343,9 @@ early_idt_handlers:
ENTRY(early_idt_handler)
cld
+ cmpl $2,(%rsp) # X86_TRAP_NMI
+ je is_nmi # Ignore NMI
+
cmpl $2,early_recursion_flag(%rip)
jz 1f
incl early_recursion_flag(%rip)
@@ -405,8 +408,9 @@ ENTRY(early_idt_handler)
popq %rdx
popq %rcx
popq %rax
- addq $16,%rsp # drop vector number and error code
decl early_recursion_flag(%rip)
+is_nmi:
+ addq $16,%rsp # drop vector number and error code
INTERRUPT_RETURN
ENDPROC(early_idt_handler)
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index f7ea30dce23..b03ff184254 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -86,10 +86,19 @@ EXPORT_SYMBOL(__kernel_fpu_begin);
void __kernel_fpu_end(void)
{
- if (use_eager_fpu())
- math_state_restore();
- else
+ if (use_eager_fpu()) {
+ /*
+ * For eager fpu, most the time, tsk_used_math() is true.
+ * Restore the user math as we are done with the kernel usage.
+ * At few instances during thread exit, signal handling etc,
+ * tsk_used_math() is false. Those few places will take proper
+ * actions, so we don't need to restore the math here.
+ */
+ if (likely(tsk_used_math(current)))
+ math_state_restore();
+ } else {
stts();
+ }
}
EXPORT_SYMBOL(__kernel_fpu_end);
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 04ee1e2e4c0..52dbf1e400d 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -529,7 +529,7 @@ static void quirk_amd_nb_node(struct pci_dev *dev)
return;
pci_read_config_dword(nb_ht, 0x60, &val);
- node = val & 7;
+ node = pcibus_to_node(dev->bus) | (val & 7);
/*
* Some hardware may return an invalid node ID,
* so check it first:
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index a14a6eaf871..765210d4d92 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2985,10 +2985,8 @@ static int cr8_write_interception(struct vcpu_svm *svm)
u8 cr8_prev = kvm_get_cr8(&svm->vcpu);
/* instruction emulation calls kvm_set_cr8() */
r = cr_interception(svm);
- if (irqchip_in_kernel(svm->vcpu.kvm)) {
- clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+ if (irqchip_in_kernel(svm->vcpu.kvm))
return r;
- }
if (cr8_prev <= kvm_get_cr8(&svm->vcpu))
return r;
kvm_run->exit_reason = KVM_EXIT_SET_TPR;
@@ -3550,6 +3548,8 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
if (is_guest_mode(vcpu) && (vcpu->arch.hflags & HF_VINTR_MASK))
return;
+ clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+
if (irr == -1)
return;