[POWERPC] spufs: Add spu stats in sysfs

Export spu statistics in sysfs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c
index 3a9e49a24ec0..e064d0c0d80e 100644
--- a/arch/powerpc/platforms/cell/spufs/fault.c
+++ b/arch/powerpc/platforms/cell/spufs/fault.c
@@ -187,6 +187,10 @@ int spufs_handle_class1(struct spu_context *ctx)
                 dsisr, ctx->state);
 
         ctx->stats.hash_flt++;
+        if (ctx->state == SPU_STATE_RUNNABLE) {
+                ctx->spu->stats.hash_flt++;
+                spu_switch_state(ctx->spu, SPU_UTIL_IOWAIT);
+        }
 
         /* we must not hold the lock when entering spu_handle_mm_fault */
         spu_release(ctx);
@@ -212,6 +216,12 @@ int spufs_handle_class1(struct spu_context *ctx)
                         ctx->stats.min_flt++;
                 else
                         ctx->stats.maj_flt++;
+                if (ctx->state == SPU_STATE_RUNNABLE) {
+                        if (flt == VM_FAULT_MINOR)
+                                ctx->spu->stats.min_flt++;
+                        else
+                                ctx->spu->stats.maj_flt++;
+                }
 
                 if (ctx->spu)
                         ctx->ops->restart_dma(ctx);