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| author | Christoph Hellwig <hch@lst.de> | 2008-04-29 17:08:38 +1000 |
|---|---|---|
| committer | Jeremy Kerr <jk@ozlabs.org> | 2008-04-30 15:01:54 +1000 |
| commit | 5158e9b5218bd3799c9fa8c401ad24d7f0c0a0a1 (patch) | |
| tree | 4ed17672fe0582c46f594217ba410ec92aebfb45 /arch/powerpc/platforms/cell/spufs/run.c | |
| parent | 14b3ca4022f050f8622ed282b734ddf445464583 (diff) | |
| download | blackbird-obmc-linux-5158e9b5218bd3799c9fa8c401ad24d7f0c0a0a1.tar.gz blackbird-obmc-linux-5158e9b5218bd3799c9fa8c401ad24d7f0c0a0a1.zip | |
[POWERPC] spufs: add context switch notification log
There are userspace instrumentation tools that need to monitor spu
context switches. This patch adds a new file called 'switch_log' to
each spufs context directory that can be used to monitor the context
switches.
Context switch in/out and exit from spu_run are monitored after the
file was first opened and can be read from it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/run.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/run.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index 96bf7c2b86fc..a9c35b7b719f 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -405,6 +405,8 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event) ret = spu_run_fini(ctx, npc, &status); spu_yield(ctx); + spu_switch_log_notify(NULL, ctx, SWITCH_LOG_EXIT, status); + if ((status & SPU_STATUS_STOPPED_BY_STOP) && (((status >> SPU_STOP_STATUS_SHIFT) & 0x3f00) == 0x2100)) ctx->stats.libassist++; |
