1 files changed, 76 insertions, 140 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 985c86bb16d0..b93a0275a217 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -1076,6 +1076,36 @@ static const struct file_operations spufs_signal2_nosched_fops = {
 	.mmap = spufs_signal2_mmap,
 };
 
+/*
+ * This is a wrapper around DEFINE_SIMPLE_ATTRIBUTE which does the
+ * work of acquiring (or not) the SPU context before calling through
+ * to the actual get routine. The set routine is called directly.
+ */
+#define SPU_ATTR_NOACQUIRE	0
+#define SPU_ATTR_ACQUIRE	1
+#define SPU_ATTR_ACQUIRE_SAVED	2
+
+#define DEFINE_SPUFS_ATTRIBUTE(__name, __get, __set, __fmt, __acquire)	\
+static u64 __##__get(void *data)					\
+{									\
+	struct spu_context *ctx = data;					\
+	u64 ret;							\
+									\
+	if (__acquire == SPU_ATTR_ACQUIRE) {				\
+		spu_acquire(ctx);					\
+		ret = __get(ctx);					\
+		spu_release(ctx);					\
+	} else if (__acquire == SPU_ATTR_ACQUIRE_SAVED)	{		\
+		spu_acquire_saved(ctx);					\
+		ret = __get(ctx);					\
+		spu_release_saved(ctx);					\
+	} else								\
+		ret = __get(ctx);					\
+									\
+	return ret;							\
+}									\
+DEFINE_SIMPLE_ATTRIBUTE(__name, __##__get, __set, __fmt);
+
 static void spufs_signal1_type_set(void *data, u64 val)
 {
 	struct spu_context *ctx = data;
@@ -1085,24 +1115,13 @@ static void spufs_signal1_type_set(void *data, u64 val)
 	spu_release(ctx);
 }
 
-static u64 __spufs_signal1_type_get(struct spu_context *ctx)
+static u64 spufs_signal1_type_get(struct spu_context *ctx)
 {
 	return ctx->ops->signal1_type_get(ctx);
 }
+DEFINE_SPUFS_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get,
+		       spufs_signal1_type_set, "%llu", SPU_ATTR_ACQUIRE);
 
-static u64 spufs_signal1_type_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-
-	spu_acquire(ctx);
-	ret = __spufs_signal1_type_get(ctx);
-	spu_release(ctx);
-
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_signal1_type, spufs_signal1_type_get,
-					spufs_signal1_type_set, "%llu");
 
 static void spufs_signal2_type_set(void *data, u64 val)
 {
@@ -1113,24 +1132,12 @@ static void spufs_signal2_type_set(void *data, u64 val)
 	spu_release(ctx);
 }
 
-static u64 __spufs_signal2_type_get(struct spu_context *ctx)
+static u64 spufs_signal2_type_get(struct spu_context *ctx)
 {
 	return ctx->ops->signal2_type_get(ctx);
 }
-
-static u64 spufs_signal2_type_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-
-	spu_acquire(ctx);
-	ret = __spufs_signal2_type_get(ctx);
-	spu_release(ctx);
-
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
-					spufs_signal2_type_set, "%llu");
+DEFINE_SPUFS_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
+		       spufs_signal2_type_set, "%llu", SPU_ATTR_ACQUIRE);
 
 #if SPUFS_MMAP_4K
 static unsigned long spufs_mss_mmap_nopfn(struct vm_area_struct *vma,
@@ -1606,22 +1613,12 @@ static void spufs_npc_set(void *data, u64 val)
 	spu_release(ctx);
 }
 
-static u64 __spufs_npc_get(struct spu_context *ctx)
+static u64 spufs_npc_get(struct spu_context *ctx)
 {
 	return ctx->ops->npc_read(ctx);
 }
-
-static u64 spufs_npc_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire(ctx);
-	ret = __spufs_npc_get(ctx);
-	spu_release(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set,
-			"0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set,
+		       "0x%llx\n", SPU_ATTR_ACQUIRE);
 
 static void spufs_decr_set(void *data, u64 val)
 {
@@ -1632,23 +1629,13 @@ static void spufs_decr_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 __spufs_decr_get(struct spu_context *ctx)
+static u64 spufs_decr_get(struct spu_context *ctx)
 {
 	struct spu_lscsa *lscsa = ctx->csa.lscsa;
 	return lscsa->decr.slot[0];
 }
-
-static u64 spufs_decr_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = __spufs_decr_get(ctx);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set,
-			"0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set,
+		       "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED);
 
 static void spufs_decr_status_set(void *data, u64 val)
 {
@@ -1661,25 +1648,16 @@ static void spufs_decr_status_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 __spufs_decr_status_get(struct spu_context *ctx)
+static u64 spufs_decr_status_get(struct spu_context *ctx)
 {
 	if (ctx->csa.priv2.mfc_control_RW & MFC_CNTL_DECREMENTER_RUNNING)
 		return SPU_DECR_STATUS_RUNNING;
 	else
 		return 0;
 }
-
-static u64 spufs_decr_status_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = __spufs_decr_status_get(ctx);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get,
-			spufs_decr_status_set, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get,
+		       spufs_decr_status_set, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE_SAVED);
 
 static void spufs_event_mask_set(void *data, u64 val)
 {
@@ -1690,25 +1668,17 @@ static void spufs_event_mask_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 __spufs_event_mask_get(struct spu_context *ctx)
+static u64 spufs_event_mask_get(struct spu_context *ctx)
 {
 	struct spu_lscsa *lscsa = ctx->csa.lscsa;
 	return lscsa->event_mask.slot[0];
 }
 
-static u64 spufs_event_mask_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = __spufs_event_mask_get(ctx);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
-			spufs_event_mask_set, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
+		       spufs_event_mask_set, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE_SAVED);
 
-static u64 __spufs_event_status_get(struct spu_context *ctx)
+static u64 spufs_event_status_get(struct spu_context *ctx)
 {
 	struct spu_state *state = &ctx->csa;
 	u64 stat;
@@ -1717,19 +1687,8 @@ static u64 __spufs_event_status_get(struct spu_context *ctx)
 		return state->spu_chnldata_RW[0];
 	return 0;
 }
-
-static u64 spufs_event_status_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret = 0;
-
-	spu_acquire_saved(ctx);
-	ret = __spufs_event_status_get(ctx);
-	spu_release_saved(ctx);
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get,
-			NULL, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get,
+		       NULL, "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
 
 static void spufs_srr0_set(void *data, u64 val)
 {
@@ -1740,44 +1699,32 @@ static void spufs_srr0_set(void *data, u64 val)
 	spu_release_saved(ctx);
 }
 
-static u64 spufs_srr0_get(void *data)
+static u64 spufs_srr0_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	struct spu_lscsa *lscsa = ctx->csa.lscsa;
-	u64 ret;
-	spu_acquire_saved(ctx);
-	ret = lscsa->srr0.slot[0];
-	spu_release_saved(ctx);
-	return ret;
+	return lscsa->srr0.slot[0];
 }
-DEFINE_SIMPLE_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set,
-			"0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set,
+		       "0x%llx\n", SPU_ATTR_ACQUIRE_SAVED)
 
-static u64 spufs_id_get(void *data)
+static u64 spufs_id_get(struct spu_context *ctx)
 {
-	struct spu_context *ctx = data;
 	u64 num;
 
-	spu_acquire(ctx);
 	if (ctx->state == SPU_STATE_RUNNABLE)
 		num = ctx->spu->number;
 	else
 		num = (unsigned int)-1;
-	spu_release(ctx);
 
 	return num;
 }
-DEFINE_SIMPLE_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE)
 
-static u64 __spufs_object_id_get(struct spu_context *ctx)
-{
-	return ctx->object_id;
-}
-
-static u64 spufs_object_id_get(void *data)
+static u64 spufs_object_id_get(struct spu_context *ctx)
 {
 	/* FIXME: Should there really be no locking here? */
-	return __spufs_object_id_get((struct spu_context *)data);
+	return ctx->object_id;
 }
 
 static void spufs_object_id_set(void *data, u64 id)
@@ -1786,26 +1733,15 @@ static void spufs_object_id_set(void *data, u64 id)
 	ctx->object_id = id;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get,
-		spufs_object_id_set, "0x%llx\n");
+DEFINE_SPUFS_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get,
+		       spufs_object_id_set, "0x%llx\n", SPU_ATTR_NOACQUIRE);
 
-static u64 __spufs_lslr_get(struct spu_context *ctx)
+static u64 spufs_lslr_get(struct spu_context *ctx)
 {
 	return ctx->csa.priv2.spu_lslr_RW;
 }
-
-static u64 spufs_lslr_get(void *data)
-{
-	struct spu_context *ctx = data;
-	u64 ret;
-
-	spu_acquire_saved(ctx);
-	ret = __spufs_lslr_get(ctx);
-	spu_release_saved(ctx);
-
-	return ret;
-}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n")
+DEFINE_SPUFS_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n",
+		       SPU_ATTR_ACQUIRE_SAVED);
 
 static int spufs_info_open(struct inode *inode, struct file *file)
 {
@@ -2230,23 +2166,23 @@ struct tree_descr spufs_dir_nosched_contents[] = {
 struct spufs_coredump_reader spufs_coredump_read[] = {
 	{ "regs", __spufs_regs_read, NULL, sizeof(struct spu_reg128[128])},
 	{ "fpcr", __spufs_fpcr_read, NULL, sizeof(struct spu_reg128) },
-	{ "lslr", NULL, __spufs_lslr_get, 19 },
-	{ "decr", NULL, __spufs_decr_get, 19 },
-	{ "decr_status", NULL, __spufs_decr_status_get, 19 },
+	{ "lslr", NULL, spufs_lslr_get, 19 },
+	{ "decr", NULL, spufs_decr_get, 19 },
+	{ "decr_status", NULL, spufs_decr_status_get, 19 },
 	{ "mem", __spufs_mem_read, NULL, LS_SIZE, },
 	{ "signal1", __spufs_signal1_read, NULL, sizeof(u32) },
-	{ "signal1_type", NULL, __spufs_signal1_type_get, 19 },
+	{ "signal1_type", NULL, spufs_signal1_type_get, 19 },
 	{ "signal2", __spufs_signal2_read, NULL, sizeof(u32) },
-	{ "signal2_type", NULL, __spufs_signal2_type_get, 19 },
-	{ "event_mask", NULL, __spufs_event_mask_get, 19 },
-	{ "event_status", NULL, __spufs_event_status_get, 19 },
+	{ "signal2_type", NULL, spufs_signal2_type_get, 19 },
+	{ "event_mask", NULL, spufs_event_mask_get, 19 },
+	{ "event_status", NULL, spufs_event_status_get, 19 },
 	{ "mbox_info", __spufs_mbox_info_read, NULL, sizeof(u32) },
 	{ "ibox_info", __spufs_ibox_info_read, NULL, sizeof(u32) },
 	{ "wbox_info", __spufs_wbox_info_read, NULL, 4 * sizeof(u32)},
 	{ "dma_info", __spufs_dma_info_read, NULL, sizeof(struct spu_dma_info)},
 	{ "proxydma_info", __spufs_proxydma_info_read,
 			   NULL, sizeof(struct spu_proxydma_info)},
-	{ "object-id", NULL, __spufs_object_id_get, 19 },
-	{ "npc", NULL, __spufs_npc_get, 19 },
+	{ "object-id", NULL, spufs_object_id_get, 19 },
+	{ "npc", NULL, spufs_npc_get, 19 },
 	{ NULL },
 };