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| author | Paul Moore <pmoore@redhat.com> | 2014-01-28 23:44:16 +0400 |
|---|---|---|
| committer | Paul Moore <pmoore@redhat.com> | 2014-02-05 19:39:48 +0400 |
| commit | 825e587af2e90e9b953849f3347a01d8f383d577 (patch) | |
| tree | e48942a05882da47544e179c6a0c920e00137a6a /arch/arm/include/asm/processor.h | |
| parent | 8ed814602876bec9bad2649ca17f34b499357a1c (diff) | |
| parent | d8ec26d7f8287f5788a494f56e8814210f0e64be (diff) | |
| download | linux-825e587af2e90e9b953849f3347a01d8f383d577.tar.xz | |
Merge tag 'v3.13' into stable-3.14
Linux 3.13
Conflicts:
security/selinux/hooks.c
Trivial merge issue in selinux_inet_conn_request() likely due to me
including patches that I sent to the stable folks in my next tree
resulting in the patch hitting twice (I think). Thankfully it was an
easy fix this time, but regardless, lesson learned, I will not do that
again.
Diffstat (limited to 'arch/arm/include/asm/processor.h')
| -rw-r--r-- | arch/arm/include/asm/processor.h | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index 413f3876341c..c3d5fc124a05 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h @@ -22,6 +22,7 @@ #include <asm/hw_breakpoint.h> #include <asm/ptrace.h> #include <asm/types.h> +#include <asm/unified.h> #ifdef __KERNEL__ #define STACK_TOP ((current->personality & ADDR_LIMIT_32BIT) ? \ @@ -87,6 +88,17 @@ unsigned long get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) task_pt_regs(tsk)->ARM_pc #define KSTK_ESP(tsk) task_pt_regs(tsk)->ARM_sp +#ifdef CONFIG_SMP +#define __ALT_SMP_ASM(smp, up) \ + "9998: " smp "\n" \ + " .pushsection \".alt.smp.init\", \"a\"\n" \ + " .long 9998b\n" \ + " " up "\n" \ + " .popsection\n" +#else +#define __ALT_SMP_ASM(smp, up) up +#endif + /* * Prefetching support - only ARMv5. */ @@ -97,17 +109,22 @@ static inline void prefetch(const void *ptr) { __asm__ __volatile__( "pld\t%a0" - : - : "p" (ptr) - : "cc"); + :: "p" (ptr)); } +#if __LINUX_ARM_ARCH__ >= 7 && defined(CONFIG_SMP) #define ARCH_HAS_PREFETCHW -#define prefetchw(ptr) prefetch(ptr) - -#define ARCH_HAS_SPINLOCK_PREFETCH -#define spin_lock_prefetch(x) do { } while (0) - +static inline void prefetchw(const void *ptr) +{ + __asm__ __volatile__( + ".arch_extension mp\n" + __ALT_SMP_ASM( + WASM(pldw) "\t%a0", + WASM(pld) "\t%a0" + ) + :: "p" (ptr)); +} +#endif #endif #define HAVE_ARCH_PICK_MMAP_LAYOUT |