diff mbox

drm/i915: cleanup use of INSTR_CLIENT_MASK

Message ID 1479163174-29686-1-git-send-email-matthew.auld@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Matthew Auld Nov. 14, 2016, 10:39 p.m. UTC 
Doing cmd_header >> 29 to extract our 3-bit client value where we know
cmd_header is a u32 shouldn't then also require the use of a mask. So
remove the redundant operation and get rid of INSTR_CLIENT_MASK now that
there are no longer any users.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
---
 drivers/gpu/drm/i915/i915_cmd_parser.c | 6 +++---
 drivers/gpu/drm/i915/i915_reg.h        | 1 -
 2 files changed, 3 insertions(+), 4 deletions(-)

Comments

Chris Wilson Nov. 14, 2016, 10:57 p.m. UTC | #1 
On Mon, Nov 14, 2016 at 10:39:34PM +0000, Matthew Auld wrote:
> Doing cmd_header >> 29 to extract our 3-bit client value where we know
> cmd_header is a u32 shouldn't then also require the use of a mask. So
> remove the redundant operation and get rid of INSTR_CLIENT_MASK now that
> there are no longer any users.
> 
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_cmd_parser.c b/drivers/gpu/drm/i915/i915_cmd_parser.c
index f5039f4..5eb7aac 100644
--- a/drivers/gpu/drm/i915/i915_cmd_parser.c
+++ b/drivers/gpu/drm/i915/i915_cmd_parser.c
@@ -559,7 +559,7 @@  static const struct drm_i915_reg_table hsw_blt_reg_tables[] = {
 
 static u32 gen7_render_get_cmd_length_mask(u32 cmd_header)
 {
-	u32 client = (cmd_header & INSTR_CLIENT_MASK) >> INSTR_CLIENT_SHIFT;
+	u32 client = cmd_header >> INSTR_CLIENT_SHIFT;
 	u32 subclient =
 		(cmd_header & INSTR_SUBCLIENT_MASK) >> INSTR_SUBCLIENT_SHIFT;
 
@@ -578,7 +578,7 @@  static u32 gen7_render_get_cmd_length_mask(u32 cmd_header)
 
 static u32 gen7_bsd_get_cmd_length_mask(u32 cmd_header)
 {
-	u32 client = (cmd_header & INSTR_CLIENT_MASK) >> INSTR_CLIENT_SHIFT;
+	u32 client = cmd_header >> INSTR_CLIENT_SHIFT;
 	u32 subclient =
 		(cmd_header & INSTR_SUBCLIENT_MASK) >> INSTR_SUBCLIENT_SHIFT;
 	u32 op = (cmd_header & INSTR_26_TO_24_MASK) >> INSTR_26_TO_24_SHIFT;
@@ -601,7 +601,7 @@  static u32 gen7_bsd_get_cmd_length_mask(u32 cmd_header)
 
 static u32 gen7_blt_get_cmd_length_mask(u32 cmd_header)
 {
-	u32 client = (cmd_header & INSTR_CLIENT_MASK) >> INSTR_CLIENT_SHIFT;
+	u32 client = cmd_header >> INSTR_CLIENT_SHIFT;
 
 	if (client == INSTR_MI_CLIENT)
 		return 0x3F;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 3361d7f..60423a2 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -294,7 +294,6 @@  static inline bool i915_mmio_reg_valid(i915_reg_t reg)
  * Instruction field definitions used by the command parser
  */
 #define INSTR_CLIENT_SHIFT      29
-#define INSTR_CLIENT_MASK       0xE0000000
 #define   INSTR_MI_CLIENT       0x0
 #define   INSTR_BC_CLIENT       0x2
 #define   INSTR_RC_CLIENT       0x3