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authorwill schmidt <will_schmidt@vnet.ibm.com>2007-06-27 02:12:33 +1000
committerPaul Mackerras <paulus@samba.org>2007-07-10 21:55:48 +1000
commit078f194045f892a10f4a5406e7cb06a7f8d42c57 (patch)
treec81b15e94d451cddf43c71657a86adf2e8773a11 /include/asm-powerpc
parentf5e6a280d153bff3b0cd15651d29d409f8dea698 (diff)
downloadop-kernel-dev-078f194045f892a10f4a5406e7cb06a7f8d42c57.zip
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[POWERPC] Oprofile enhanced instruction sampling support
Oprofile enhanced instruction sampling support. When performing instruction sampling, the mmcra[SLOT] field can be used to more accurately identify the address of the sampled instruction. Tested on power4, js20, power5 and power5+. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> cc: Maynard Johnson <maynardj@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/reg.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h
index 749c7f9..281011e 100644
--- a/include/asm-powerpc/reg.h
+++ b/include/asm-powerpc/reg.h
@@ -453,6 +453,8 @@
#define SPRN_MMCRA 0x312
#define MMCRA_SIHV 0x10000000UL /* state of MSR HV when SIAR set */
#define MMCRA_SIPR 0x08000000UL /* state of MSR PR when SIAR set */
+#define MMCRA_SLOT 0x07000000UL /* SLOT bits (37-39) */
+#define MMCRA_SLOT_SHIFT 24
#define MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */
#define POWER6_MMCRA_SIHV 0x0000040000000000ULL
#define POWER6_MMCRA_SIPR 0x0000020000000000ULL
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