GRU driver: minor updates

A few minor updates for the GRU driver.
	- documentation changes found in code reviews
	- changes to #ifdefs to make them recognized by "unifdef"
	  (used in simulator testing)
	- change GRU context load/unload to prefetch data

[akpm@linux-foundation.org: fix typo in comment]
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/misc/sgi-gru/gru_instructions.h b/drivers/misc/sgi-gru/gru_instructions.h
index 0dc36225c7c6..48762e7b98be 100644
--- a/drivers/misc/sgi-gru/gru_instructions.h
+++ b/drivers/misc/sgi-gru/gru_instructions.h
@@ -26,7 +26,7 @@
  * Architecture dependent functions
  */
 
-#if defined CONFIG_IA64
+#if defined(CONFIG_IA64)
 #include <linux/compiler.h>
 #include <asm/intrinsics.h>
 #define __flush_cache(p)                ia64_fc(p)
@@ -36,7 +36,7 @@
                         barrier();                                      \
                         *((volatile int *)(p)) = v; /* force st.rel */  \
                 } while (0)
-#elif defined CONFIG_X86_64
+#elif defined(CONFIG_X86_64)
 #define __flush_cache(p)                clflush(p)
 #define gru_ordered_store_int(p,v)                                      \
                 do {                                                    \
@@ -299,6 +299,7 @@ static inline void gru_flush_cache(void *p)
 static inline void gru_start_instruction(struct gru_instruction *ins, int op32)
 {
         gru_ordered_store_int(ins, op32);
+        gru_flush_cache(ins);
 }
 
 
@@ -604,8 +605,9 @@ static inline int gru_get_cb_substatus(void *cb)
 static inline int gru_check_status(void *cb)
 {
         struct gru_control_block_status *cbs = (void *)cb;
-        int ret = cbs->istatus;
+        int ret;
 
+        ret = cbs->istatus;
         if (ret == CBS_CALL_OS)
                 ret = gru_check_status_proc(cb);
         return ret;
@@ -617,7 +619,7 @@ static inline int gru_check_status(void *cb)
 static inline int gru_wait(void *cb)
 {
         struct gru_control_block_status *cbs = (void *)cb;
-        int ret = cbs->istatus;;
+        int ret = cbs->istatus;
 
         if (ret != CBS_IDLE)
                 ret = gru_wait_proc(cb);