1 files changed, 28 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/backing_ops.c b/arch/powerpc/platforms/cell/spufs/backing_ops.c
index 2d22cd59d6fc..1898f0d3a8b8 100644
--- a/arch/powerpc/platforms/cell/spufs/backing_ops.c
+++ b/arch/powerpc/platforms/cell/spufs/backing_ops.c
@@ -36,6 +36,7 @@
 #include <asm/io.h>
 #include <asm/spu.h>
 #include <asm/spu_csa.h>
+#include <asm/spu_info.h>
 #include <asm/mmu_context.h>
 #include "spufs.h"
 
@@ -267,6 +268,11 @@ static char *spu_backing_get_ls(struct spu_context *ctx)
         return ctx->csa.lscsa->ls;
 }
 
+static u32 spu_backing_runcntl_read(struct spu_context *ctx)
+{
+        return ctx->csa.prob.spu_runcntl_RW;
+}
+
 static void spu_backing_runcntl_write(struct spu_context *ctx, u32 val)
 {
         spin_lock(&ctx->csa.register_lock);
@@ -279,9 +285,26 @@ static void spu_backing_runcntl_write(struct spu_context *ctx, u32 val)
         spin_unlock(&ctx->csa.register_lock);
 }
 
-static void spu_backing_runcntl_stop(struct spu_context *ctx)
+static void spu_backing_master_start(struct spu_context *ctx)
+{
+        struct spu_state *csa = &ctx->csa;
+        u64 sr1;
+
+        spin_lock(&csa->register_lock);
+        sr1 = csa->priv1.mfc_sr1_RW | MFC_STATE1_MASTER_RUN_CONTROL_MASK;
+        csa->priv1.mfc_sr1_RW = sr1;
+        spin_unlock(&csa->register_lock);
+}
+
+static void spu_backing_master_stop(struct spu_context *ctx)
 {
-        spu_backing_runcntl_write(ctx, SPU_RUNCNTL_STOP);
+        struct spu_state *csa = &ctx->csa;
+        u64 sr1;
+
+        spin_lock(&csa->register_lock);
+        sr1 = csa->priv1.mfc_sr1_RW & ~MFC_STATE1_MASTER_RUN_CONTROL_MASK;
+        csa->priv1.mfc_sr1_RW = sr1;
+        spin_unlock(&csa->register_lock);
 }
 
 static int spu_backing_set_mfc_query(struct spu_context * ctx, u32 mask,
@@ -345,8 +368,10 @@ struct spu_context_ops spu_backing_ops = {
         .npc_write = spu_backing_npc_write,
         .status_read = spu_backing_status_read,
         .get_ls = spu_backing_get_ls,
+        .runcntl_read = spu_backing_runcntl_read,
         .runcntl_write = spu_backing_runcntl_write,
-        .runcntl_stop = spu_backing_runcntl_stop,
+        .master_start = spu_backing_master_start,
+        .master_stop = spu_backing_master_stop,
         .set_mfc_query = spu_backing_set_mfc_query,
         .read_mfc_tagstatus = spu_backing_read_mfc_tagstatus,
         .get_mfc_free_elements = spu_backing_get_mfc_free_elements,