Commit-ID: 94cdda6b98b3708f04f426204542aa69d4780fa9 Gitweb: http://git.kernel.org/tip/94cdda6b98b3708f04f426204542aa69d4780fa9 Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Thu, 7 May 2015 17:27:23 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Fri, 8 May 2015 16:05:05 -0300
perf tools: Move sparc barrier.h stuff to tools/arch/sparc/include/asm/barrier.h We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/arch/sparc/include/asm/barrier.h | 8 ++++ tools/arch/sparc/include/asm/barrier_32.h | 6 +++ .../arch}/sparc/include/asm/barrier_64.h | 47 +++------------------- tools/include/asm/barrier.h | 2 + tools/perf/MANIFEST | 3 ++ tools/perf/perf-sys.h | 9 ----- 6 files changed, 25 insertions(+), 50 deletions(-) diff --git a/tools/arch/sparc/include/asm/barrier.h b/tools/arch/sparc/include/asm/barrier.h new file mode 100644 index 0000000..8c017b3 --- /dev/null +++ b/tools/arch/sparc/include/asm/barrier.h @@ -0,0 +1,8 @@ +#ifndef ___TOOLS_LINUX_ASM_SPARC_BARRIER_H +#define ___TOOLS_LINUX_ASM_SPARC_BARRIER_H +#if defined(__sparc__) && defined(__arch64__) +#include "barrier_64.h" +#else +#include "barrier_32.h" +#endif +#endif diff --git a/tools/arch/sparc/include/asm/barrier_32.h b/tools/arch/sparc/include/asm/barrier_32.h new file mode 100644 index 0000000..c5eadd0 --- /dev/null +++ b/tools/arch/sparc/include/asm/barrier_32.h @@ -0,0 +1,6 @@ +#ifndef __TOOLS_PERF_SPARC_BARRIER_H +#define __TOOLS_PERF_SPARC_BARRIER_H + +#include <asm-generic/barrier.h> + +#endif /* !(__TOOLS_PERF_SPARC_BARRIER_H) */ diff --git a/arch/sparc/include/asm/barrier_64.h b/tools/arch/sparc/include/asm/barrier_64.h similarity index 55% copy from arch/sparc/include/asm/barrier_64.h copy to tools/arch/sparc/include/asm/barrier_64.h index 7664894..9a7d732 100644 --- a/arch/sparc/include/asm/barrier_64.h +++ b/tools/arch/sparc/include/asm/barrier_64.h @@ -1,7 +1,9 @@ -#ifndef __SPARC64_BARRIER_H -#define __SPARC64_BARRIER_H +#ifndef __TOOLS_LINUX_SPARC64_BARRIER_H +#define __TOOLS_LINUX_SPARC64_BARRIER_H -/* These are here in an effort to more fully work around Spitfire Errata +/* Copied from the kernel sources to tools/: + * + * These are here in an effort to more fully work around Spitfire Errata * #51. Essentially, if a memory barrier occurs soon after a mispredicted * branch, the chip can stop executing instructions until a trap occurs. * Therefore, if interrupts are disabled, the chip can hang forever. @@ -37,41 +39,4 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \ #define rmb() __asm__ __volatile__("":::"memory") #define wmb() __asm__ __volatile__("":::"memory") -#define dma_rmb() rmb() -#define dma_wmb() wmb() - -#define set_mb(__var, __value) \ - do { __var = __value; membar_safe("#StoreLoad"); } while(0) - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#else -#define smp_mb() __asm__ __volatile__("":::"memory") -#define smp_rmb() __asm__ __volatile__("":::"memory") -#define smp_wmb() __asm__ __volatile__("":::"memory") -#endif - -#define read_barrier_depends() do { } while (0) -#define smp_read_barrier_depends() do { } while (0) - -#define smp_store_release(p, v) \ -do { \ - compiletime_assert_atomic_type(*p); \ - barrier(); \ - ACCESS_ONCE(*p) = (v); \ -} while (0) - -#define smp_load_acquire(p) \ -({ \ - typeof(*p) ___p1 = ACCESS_ONCE(*p); \ - compiletime_assert_atomic_type(*p); \ - barrier(); \ - ___p1; \ -}) - -#define smp_mb__before_atomic() barrier() -#define smp_mb__after_atomic() barrier() - -#endif /* !(__SPARC64_BARRIER_H) */ +#endif /* !(__TOOLS_LINUX_SPARC64_BARRIER_H) */ diff --git a/tools/include/asm/barrier.h b/tools/include/asm/barrier.h index 1338c8a..87f6309 100644 --- a/tools/include/asm/barrier.h +++ b/tools/include/asm/barrier.h @@ -6,4 +6,6 @@ #include "../../arch/s390/include/asm/barrier.h" #elif defined(__sh__) #include "../../arch/sh/include/asm/barrier.h" +#elif defined(__sparc__) +#include "../../arch/sparc/include/asm/barrier.h" #endif diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index 2ceb1b2..ee69240 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -2,6 +2,9 @@ tools/perf tools/arch/powerpc/include/asm/barrier.h tools/arch/s390/include/asm/barrier.h tools/arch/sh/include/asm/barrier.h +tools/arch/sparc/include/asm/barrier.h +tools/arch/sparc/include/asm/barrier_32.h +tools/arch/sparc/include/asm/barrier_64.h tools/arch/x86/include/asm/barrier.h tools/scripts tools/build diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h index 7ef5e82..b3e911a 100644 --- a/tools/perf/perf-sys.h +++ b/tools/perf/perf-sys.h @@ -57,15 +57,6 @@ #endif #ifdef __sparc__ -#ifdef __LP64__ -#define mb() asm volatile("ba,pt %%xcc, 1f\n" \ - "membar #StoreLoad\n" \ - "1:\n":::"memory") -#else -#define mb() asm volatile("":::"memory") -#endif -#define wmb() asm volatile("":::"memory") -#define rmb() asm volatile("":::"memory") #define CPUINFO_PROC {"cpu"} #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
