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| author |   Paul Mundt <lethal@linux-sh.org> | 2009-11-09 14:11:07 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-11-09 14:11:07 +0900 |
| commit | 0fe69d773f35fd95938ea02a91ec2d026045398b (patch) | |
| tree | 4ed85099151c687daa2b8b0bf0ec7233a4528681 /arch/sh/kernel/cpu/sh4a | |
| parent | Merge branch 'sh/stable-updates' (diff) | |
| download | linux-dev-0fe69d773f35fd95938ea02a91ec2d026045398b.tar.xz linux-dev-0fe69d773f35fd95938ea02a91ec2d026045398b.zip | |
sh: perf events: Document SH-4A raw event codes.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/sh4a')
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/perf_event.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/sh4a/perf_event.c b/arch/sh/kernel/cpu/sh4a/perf_event.c index d0938345799f..eddc21973fa1 100644 --- a/arch/sh/kernel/cpu/sh4a/perf_event.c +++ b/arch/sh/kernel/cpu/sh4a/perf_event.c @@ -38,6 +38,44 @@ static struct sh_pmu sh4a_pmu; /* + * Supported raw event codes: + * + * Event Code Description + * ---------- ----------- + * + * 0x0000 number of elapsed cycles + * 0x0200 number of elapsed cycles in privileged mode + * 0x0280 number of elapsed cycles while SR.BL is asserted + * 0x0202 instruction execution + * 0x0203 instruction execution in parallel + * 0x0204 number of unconditional branches + * 0x0208 number of exceptions + * 0x0209 number of interrupts + * 0x0220 UTLB miss caused by instruction fetch + * 0x0222 UTLB miss caused by operand access + * 0x02a0 number of ITLB misses + * 0x0028 number of accesses to instruction memories + * 0x0029 number of accesses to instruction cache + * 0x002a instruction cache miss + * 0x022e number of access to instruction X/Y memory + * 0x0030 number of reads to operand memories + * 0x0038 number of writes to operand memories + * 0x0031 number of operand cache read accesses + * 0x0039 number of operand cache write accesses + * 0x0032 operand cache read miss + * 0x003a operand cache write miss + * 0x0236 number of reads to operand X/Y memory + * 0x023e number of writes to operand X/Y memory + * 0x0237 number of reads to operand U memory + * 0x023f number of writes to operand U memory + * 0x0337 number of U memory read buffer misses + * 0x02b4 number of wait cycles due to operand read access + * 0x02bc number of wait cycles due to operand write access + * 0x0033 number of wait cycles due to operand cache read miss + * 0x003b number of wait cycles due to operand cache write miss + */ + +/* * Special reserved bits used by hardware emulators, read values will * vary, but writes must always be 0. */ |