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add syscalls (pmc_init, pmc_start, pmc_stop, pmc_reset) for performance monitoring instructions

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This commit is contained in:
Masamichi Takagi m-takagi@ab.jp.nec.com
2012-11-02 20:53:02 +09:00
parent 790ae3a9c7
commit 2698cb85c9
3 changed files with 137 additions and 30 deletions
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12
kernel/init.c
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@ -97,11 +97,13 @@ void pc_init(void)
int imode = 1;
char *p;
int x[2][4] = { { APT_TYPE_INSTRUCTIONS,
APT_TYPE_L1D_MISS,
APT_TYPE_L2_MISS, APT_TYPE_L1I_MISS, },
{ APT_TYPE_L1I_MISS, APT_TYPE_LLC_MISS,
APT_TYPE_STALL, APT_TYPE_CYCLE },
int x[2][4] = { { APT_TYPE_INSTRUCTIONS_EXECUTED,
APT_TYPE_DATA_READ_MISS,
APT_TYPE_L2_CODE_READ_MISS_MEM_FILL,
APT_TYPE_CODE_CACHE_MISS, },
{ APT_TYPE_CODE_CACHE_MISS,
APT_TYPE_LLC_MISS, // not updated for KNC
APT_TYPE_STALL, APT_TYPE_CYCLE }, // not updated for KNC
};
if (!(p = find_command_line("perfctr"))) {