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Diffstat (limited to 'arch/powerpc/platforms/ps3/spu.c')
-rw-r--r--arch/powerpc/platforms/ps3/spu.c27
1 files changed, 25 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c
index d1630a074acf..5ad41189b494 100644
--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -28,6 +28,7 @@
#include <asm/spu_priv1.h>
#include <asm/lv1call.h>
+#include "../cell/spufs/spufs.h"
#include "platform.h"
/* spu_management_ops */
@@ -419,10 +420,34 @@ static int ps3_init_affinity(void)
return 0;
}
+/**
+ * ps3_enable_spu - Enable SPU run control.
+ *
+ * An outstanding enhancement for the PS3 would be to add a guard to check
+ * for incorrect access to the spu problem state when the spu context is
+ * disabled. This check could be implemented with a flag added to the spu
+ * context that would inhibit mapping problem state pages, and a routine
+ * to unmap spu problem state pages. When the spu is enabled with
+ * ps3_enable_spu() the flag would be set allowing pages to be mapped,
+ * and when the spu is disabled with ps3_disable_spu() the flag would be
+ * cleared and the mapped problem state pages would be unmapped.
+ */
+
+static void ps3_enable_spu(struct spu_context *ctx)
+{
+}
+
+static void ps3_disable_spu(struct spu_context *ctx)
+{
+ ctx->ops->runcntl_stop(ctx);
+}
+
const struct spu_management_ops spu_management_ps3_ops = {
.enumerate_spus = ps3_enumerate_spus,
.create_spu = ps3_create_spu,
.destroy_spu = ps3_destroy_spu,
+ .enable_spu = ps3_enable_spu,
+ .disable_spu = ps3_disable_spu,
.init_affinity = ps3_init_affinity,
};
@@ -505,8 +530,6 @@ static void mfc_sr1_set(struct spu *spu, u64 sr1)
static const u64 allowed = ~(MFC_STATE1_LOCAL_STORAGE_DECODE_MASK
| MFC_STATE1_PROBLEM_STATE_MASK);
- sr1 |= MFC_STATE1_MASTER_RUN_CONTROL_MASK;
-
BUG_ON((sr1 & allowed) != (spu_pdata(spu)->cache.sr1 & allowed));
spu_pdata(spu)->cache.sr1 = sr1;