Commit-ID: 163e589d0519b6d6c1e5500f4d14b1fc10b736fe
Gitweb: http://git.kernel.org/tip/163e589d0519b6d6c1e5500f4d14b1fc10b736fe
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Thu, 7 May 2015 18:03:14 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 8 May 2015 16:05:06 -0300
perf tools: Move ia64 barrier.h stuff to tools/arch/ia64/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 <adrian.hunter@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-4op0qdukegrdumyefz4icxk0@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
{arch => tools/arch}/ia64/include/asm/barrier.h | 63 ++++---------------------
tools/include/asm/barrier.h | 2 +
tools/perf/MANIFEST | 1 +
tools/perf/perf-sys.h | 3 --
4 files changed, 12 insertions(+), 57 deletions(-)
diff --git a/arch/ia64/include/asm/barrier.h b/tools/arch/ia64/include/asm/barrier.h
similarity index 52%
copy from arch/ia64/include/asm/barrier.h
copy to tools/arch/ia64/include/asm/barrier.h
index f6769eb..e4422b4 100644
--- a/arch/ia64/include/asm/barrier.h
+++ b/tools/arch/ia64/include/asm/barrier.h
@@ -1,4 +1,6 @@
/*
+ * Copied from the kernel sources to tools/:
+ *
* Memory barrier definitions. This is based on information published
* in the Processor Abstraction Layer and the System Abstraction Layer
* manual.
@@ -8,8 +10,8 @@
* Copyright (C) 1999 Asit Mallick <asit.k.mallick@xxxxxxxxx>
* Copyright (C) 1999 Don Dugger <don.dugger@xxxxxxxxx>
*/
-#ifndef _ASM_IA64_BARRIER_H
-#define _ASM_IA64_BARRIER_H
+#ifndef _TOOLS_LINUX_ASM_IA64_BARRIER_H
+#define _TOOLS_LINUX_ASM_IA64_BARRIER_H
#include <linux/compiler.h>
@@ -35,59 +37,12 @@
* it's (presumably) much slower than mf and (b) mf.a is supported for
* sequential memory pages only.
*/
+
+/* XXX From arch/ia64/include/uapi/asm/gcc_intrin.h */
+#define ia64_mf() asm volatile ("mf" ::: "memory")
+
#define mb() ia64_mf()
#define rmb() mb()
#define wmb() mb()
-#define dma_rmb() mb()
-#define dma_wmb() mb()
-
-#ifdef CONFIG_SMP
-# define smp_mb() mb()
-#else
-# define smp_mb() barrier()
-#endif
-
-#define smp_rmb() smp_mb()
-#define smp_wmb() smp_mb()
-
-#define read_barrier_depends() do { } while (0)
-#define smp_read_barrier_depends() do { } while (0)
-
-#define smp_mb__before_atomic() barrier()
-#define smp_mb__after_atomic() barrier()
-
-/*
- * IA64 GCC turns volatile stores into st.rel and volatile loads into ld.acq no
- * need for asm trickery!
- */
-
-#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; \
-})
-
-/*
- * XXX check on this ---I suspect what Linus really wants here is
- * acquire vs release semantics but we can't discuss this stuff with
- * Linus just yet. Grrr...
- */
-#define set_mb(var, value) do { (var) = (value); mb(); } while (0)
-
-/*
- * The group barrier in front of the rsm & ssm are necessary to ensure
- * that none of the previous instructions in the same group are
- * affected by the rsm/ssm.
- */
-
-#endif /* _ASM_IA64_BARRIER_H */
+#endif /* _TOOLS_LINUX_ASM_IA64_BARRIER_H */
diff --git a/tools/include/asm/barrier.h b/tools/include/asm/barrier.h
index a579a2e..659aa60 100644
--- a/tools/include/asm/barrier.h
+++ b/tools/include/asm/barrier.h
@@ -10,4 +10,6 @@
#include "../../arch/sparc/include/asm/barrier.h"
#elif defined(__alpha__)
#include "../../arch/alpha/include/asm/barrier.h"
+#elif defined(__ia64__)
+#include "../../arch/ia64/include/asm/barrier.h"
#endif
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 9919ee3..74981a6 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -1,5 +1,6 @@
tools/perf
tools/arch/alpha/include/asm/barrier.h
+tools/arch/ia64/include/asm/barrier.h
tools/arch/powerpc/include/asm/barrier.h
tools/arch/s390/include/asm/barrier.h
tools/arch/sh/include/asm/barrier.h
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h
index 4710f057..79052fd 100644
--- a/tools/perf/perf-sys.h
+++ b/tools/perf/perf-sys.h
@@ -65,9 +65,6 @@
#endif
#ifdef __ia64__
-#define mb() asm volatile ("mf" ::: "memory")
-#define wmb() asm volatile ("mf" ::: "memory")
-#define rmb() asm volatile ("mf" ::: "memory")
#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
#define CPUINFO_PROC {"model name"}
#endif
--
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