Module: Mesa
Branch: master
Commit: 3e2b6a204966b962c9881e90fe3f0b74cf84d8c4
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=3e2b6a204966b962c9881e90fe3f0b74cf84d8c4
Author: Xiang, Haihao <haihao.xi...@intel.com>
Date: Thu Jul 30 14:45:11 2009 +0800
i965: Postpone ff_sync message in CLIP kernel on IGDNG
In addition, it guarantees ff_sync message is issued
---
src/mesa/drivers/dri/i965/brw_clip.h | 3 ++
src/mesa/drivers/dri/i965/brw_clip_line.c | 7 +++-
src/mesa/drivers/dri/i965/brw_clip_point.c | 4 +-
src/mesa/drivers/dri/i965/brw_clip_tri.c | 8 +++-
src/mesa/drivers/dri/i965/brw_clip_unfilled.c | 3 +-
src/mesa/drivers/dri/i965/brw_clip_util.c | 48 ++++++++++++++++++------
6 files changed, 53 insertions(+), 20 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_clip.h
b/src/mesa/drivers/dri/i965/brw_clip.h
index 12e8548..957df44 100644
--- a/src/mesa/drivers/dri/i965/brw_clip.h
+++ b/src/mesa/drivers/dri/i965/brw_clip.h
@@ -100,6 +100,8 @@ struct brw_clip_compile {
struct brw_reg fixed_planes;
struct brw_reg plane_equation;
+
+ struct brw_reg ff_sync;
} reg;
/* 3 different ways of expressing vertex size:
@@ -173,4 +175,5 @@ struct brw_reg get_tmp( struct brw_clip_compile *c );
void brw_clip_project_position(struct brw_clip_compile *c,
struct brw_reg pos );
void brw_clip_ff_sync(struct brw_clip_compile *c);
+void brw_clip_init_ff_sync(struct brw_clip_compile *c);
#endif
diff --git a/src/mesa/drivers/dri/i965/brw_clip_line.c
b/src/mesa/drivers/dri/i965/brw_clip_line.c
index 9abd064..048ca62 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_line.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_line.c
@@ -85,6 +85,10 @@ static void brw_clip_line_alloc_regs( struct
brw_clip_compile *c )
i++;
}
+ if (c->need_ff_sync) {
+ c->reg.ff_sync = retype(brw_vec1_grf(i, 0), BRW_REGISTER_TYPE_UD);
+ i++;
+ }
c->first_tmp = i;
c->last_tmp = i;
@@ -246,8 +250,6 @@ static void clip_and_emit_line( struct brw_clip_compile *c )
brw_ADD(p, c->reg.t, c->reg.t0, c->reg.t1);
brw_CMP(p, vec1(brw_null_reg()), BRW_CONDITIONAL_L, c->reg.t,
brw_imm_f(1.0));
- if (c->need_ff_sync)
- brw_clip_ff_sync(c);
not_culled = brw_IF(p, BRW_EXECUTE_1);
{
brw_clip_interp_vertex(c, newvtx0, vtx0, vtx1, c->reg.t0, GL_FALSE);
@@ -265,6 +267,7 @@ static void clip_and_emit_line( struct brw_clip_compile *c )
void brw_emit_line_clip( struct brw_clip_compile *c )
{
brw_clip_line_alloc_regs(c);
+ brw_clip_init_ff_sync(c);
if (c->key.do_flat_shading)
brw_clip_copy_colors(c, 0, 1);
diff --git a/src/mesa/drivers/dri/i965/brw_clip_point.c
b/src/mesa/drivers/dri/i965/brw_clip_point.c
index 9738299..8458f61 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_point.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_point.c
@@ -50,7 +50,7 @@ void brw_emit_point_clip( struct brw_clip_compile *c )
/* Send an empty message to kill the thread:
*/
brw_clip_tri_alloc_regs(c, 0);
- if (c->need_ff_sync)
- brw_clip_ff_sync(c);
+ brw_clip_init_ff_sync(c);
+
brw_clip_kill_thread(c);
}
diff --git a/src/mesa/drivers/dri/i965/brw_clip_tri.c
b/src/mesa/drivers/dri/i965/brw_clip_tri.c
index 4c2d655..0efd772 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_tri.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_tri.c
@@ -119,6 +119,11 @@ void brw_clip_tri_alloc_regs( struct brw_clip_compile *c,
i++;
}
+ if (c->need_ff_sync) {
+ c->reg.ff_sync = retype(brw_vec1_grf(i, 0), BRW_REGISTER_TYPE_UD);
+ i++;
+ }
+
c->first_tmp = i;
c->last_tmp = i;
@@ -563,6 +568,7 @@ void brw_emit_tri_clip( struct brw_clip_compile *c )
brw_clip_tri_alloc_regs(c, 3 + c->key.nr_userclip + 6);
brw_clip_tri_init_vertices(c);
brw_clip_init_clipmask(c);
+ brw_clip_init_ff_sync(c);
/* if -ve rhw workaround bit is set,
do cliptest */
@@ -589,8 +595,6 @@ void brw_emit_tri_clip( struct brw_clip_compile *c )
else
maybe_do_clip_tri(c);
- if (c->need_ff_sync)
- brw_clip_ff_sync(c);
brw_clip_tri_emit_polygon(c);
/* Send an empty message to kill the thread:
diff --git a/src/mesa/drivers/dri/i965/brw_clip_unfilled.c
b/src/mesa/drivers/dri/i965/brw_clip_unfilled.c
index 2695038..ad1bfa4 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_unfilled.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_unfilled.c
@@ -453,6 +453,7 @@ void brw_emit_unfilled_clip( struct brw_clip_compile *c )
brw_clip_tri_alloc_regs(c, 3 + c->key.nr_userclip + 6);
brw_clip_tri_init_vertices(c);
+ brw_clip_init_ff_sync(c);
assert(c->offset[VERT_RESULT_EDGE]);
@@ -496,8 +497,6 @@ void brw_emit_unfilled_clip( struct brw_clip_compile *c )
}
brw_ENDIF(p, do_clip);
- if (c->need_ff_sync)
- brw_clip_ff_sync(c);
emit_unfilled_primitives(c);
brw_clip_kill_thread(c);
}
diff --git a/src/mesa/drivers/dri/i965/brw_clip_util.c
b/src/mesa/drivers/dri/i965/brw_clip_util.c
index e09efc0..5a73abd 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_util.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_util.c
@@ -213,6 +213,8 @@ void brw_clip_emit_vue(struct brw_clip_compile *c,
struct brw_compile *p = &c->func;
GLuint start = c->last_mrf;
+ brw_clip_ff_sync(c);
+
assert(!(allocate && eot));
/* Cycle through mrf regs - probably futile as we have to wait for
@@ -263,6 +265,7 @@ void brw_clip_kill_thread(struct brw_clip_compile *c)
{
struct brw_compile *p = &c->func;
+ brw_clip_ff_sync(c);
/* Send an empty message to kill the thread and release any
* allocated urb entry:
*/
@@ -356,17 +359,38 @@ void brw_clip_init_clipmask( struct brw_clip_compile *c )
void brw_clip_ff_sync(struct brw_clip_compile *c)
{
+ if (c->need_ff_sync) {
+ struct brw_compile *p = &c->func;
+ struct brw_instruction *need_ff_sync;
+
+ brw_set_conditionalmod(p, BRW_CONDITIONAL_Z);
+ brw_AND(p, brw_null_reg(), c->reg.ff_sync, brw_imm_ud(0x1));
+ need_ff_sync = brw_IF(p, BRW_EXECUTE_1);
+ {
+ brw_OR(p, c->reg.ff_sync, c->reg.ff_sync, brw_imm_ud(0x1));
+ brw_ff_sync(p,
+ c->reg.R0,
+ 0,
+ c->reg.R0,
+ 1,
+ 1, /* used */
+ 1, /* msg length */
+ 1, /* response length */
+ 0, /* eot */
+ 1, /* write compelete */
+ 0, /* urb offset */
+ BRW_URB_SWIZZLE_NONE);
+ }
+ brw_ENDIF(p, need_ff_sync);
+ brw_set_predicate_control(p, BRW_PREDICATE_NONE);
+ }
+}
+
+void brw_clip_init_ff_sync(struct brw_clip_compile *c)
+{
+ if (c->need_ff_sync) {
struct brw_compile *p = &c->func;
- brw_ff_sync(p,
- c->reg.R0,
- 0,
- c->reg.R0,
- 1,
- 1, /* used */
- 1, /* msg length */
- 1, /* response length */
- 0, /* eot */
- 1, /* write compelete */
- 0, /* urb offset */
- BRW_URB_SWIZZLE_NONE);
+
+ brw_MOV(p, c->reg.ff_sync, brw_imm_ud(0));
+ }
}
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