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| author | Jeremy Kerr <jk@ozlabs.org> | 2007-12-20 16:39:59 +0900 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-12-21 19:46:20 +1100 |
| commit | d6ad39bc53521275d14fde86bfb94d9b2ddb7a08 (patch) | |
| tree | 07dcc592b343395cb7fbfb3053aa21103fb94352 /arch/powerpc/platforms/cell/spufs/spufs.h | |
| parent | 8af30675c3e7b945bbaf6f57b724f246e56eb209 (diff) | |
| download | blackbird-op-linux-d6ad39bc53521275d14fde86bfb94d9b2ddb7a08.tar.gz blackbird-op-linux-d6ad39bc53521275d14fde86bfb94d9b2ddb7a08.zip | |
[POWERPC] spufs: rework class 0 and 1 interrupt handling
Based on original patches from
Arnd Bergmann <arnd.bergman@de.ibm.com>; and
Luke Browning <lukebr@linux.vnet.ibm.com>
Currently, spu contexts need to be loaded to the SPU in order to take
class 0 and class 1 exceptions.
This change makes the actual interrupt-handlers much simpler (ie,
set the exception information in the context save area), and defers the
handling code to the spufs_handle_class[01] functions, called from
spufs_run_spu.
This should improve the concurrency of the spu scheduling leading to
greater SPU utilization when SPUs are overcommited.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/spufs.h')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/spufs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index afdddbc8cf68..eaab1b239d02 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -222,6 +222,7 @@ void spu_gang_add_ctx(struct spu_gang *gang, struct spu_context *ctx); /* fault handling */ int spufs_handle_class1(struct spu_context *ctx); +int spufs_handle_class0(struct spu_context *ctx); /* affinity */ struct spu *affinity_check(struct spu_context *ctx); |
