mesa/mesa-intel-snb-regression-reverts.patch
2011-04-01 14:27:54 +10:00

126 lines
4.4 KiB
Diff

diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c
index 32ee37f..21ce92c 100644
--- a/src/mesa/drivers/dri/i965/brw_eu_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c
@@ -52,35 +52,6 @@ static void guess_execution_size(struct brw_compile *p,
}
-/**
- * Prior to Sandybridge, the SEND instruction accepted non-MRF source
- * registers, implicitly moving the operand to a message register.
- *
- * On Sandybridge, this is no longer the case. This function performs the
- * explicit move; it should be called before emitting a SEND instruction.
- */
-static void
-gen6_resolve_implied_move(struct brw_compile *p,
- struct brw_reg *src,
- GLuint msg_reg_nr)
-{
- struct intel_context *intel = &p->brw->intel;
- if (intel->gen != 6)
- return;
-
- if (src->file == BRW_ARCHITECTURE_REGISTER_FILE && src->nr == BRW_ARF_NULL)
- return;
-
- brw_push_insn_state(p);
- brw_set_mask_control(p, BRW_MASK_DISABLE);
- brw_set_compression_control(p, BRW_COMPRESSION_NONE);
- brw_MOV(p, retype(brw_message_reg(msg_reg_nr), BRW_REGISTER_TYPE_UD),
- retype(*src, BRW_REGISTER_TYPE_UD));
- brw_pop_insn_state(p);
- *src = brw_message_reg(msg_reg_nr);
-}
-
-
static void brw_set_dest(struct brw_compile *p,
struct brw_instruction *insn,
struct brw_reg dest)
@@ -1800,7 +1771,6 @@ void brw_dp_READ_4_vs_relative(struct brw_compile *p,
GLuint bind_table_index)
{
struct intel_context *intel = &p->brw->intel;
- struct brw_reg src = brw_vec8_grf(0, 0);
int msg_type;
/* Setup MRF[1] with offset into const buffer */
@@ -1817,7 +1787,6 @@ void brw_dp_READ_4_vs_relative(struct brw_compile *p,
addr_reg, brw_imm_d(offset));
brw_pop_insn_state(p);
- gen6_resolve_implied_move(p, &src, 0);
struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND);
insn->header.predicate_control = BRW_PREDICATE_NONE;
@@ -1826,7 +1795,7 @@ void brw_dp_READ_4_vs_relative(struct brw_compile *p,
insn->header.mask_control = BRW_MASK_DISABLE;
brw_set_dest(p, insn, dest);
- brw_set_src0(insn, src);
+ brw_set_src0(insn, brw_vec8_grf(0, 0));
if (intel->gen == 6)
msg_type = GEN6_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ;
@@ -1997,7 +1966,20 @@ void brw_SAMPLE(struct brw_compile *p,
{
struct brw_instruction *insn;
- gen6_resolve_implied_move(p, &src0, msg_reg_nr);
+ /* Sandybridge doesn't have the implied move for SENDs,
+ * and the first message register index comes from src0.
+ */
+ if (intel->gen >= 6) {
+ if (src0.file != BRW_ARCHITECTURE_REGISTER_FILE ||
+ src0.nr != BRW_ARF_NULL) {
+ brw_push_insn_state(p);
+ brw_set_mask_control( p, BRW_MASK_DISABLE );
+ brw_set_compression_control(p, BRW_COMPRESSION_NONE);
+ brw_MOV(p, retype(brw_message_reg(msg_reg_nr), src0.type), src0);
+ brw_pop_insn_state(p);
+ }
+ src0 = brw_message_reg(msg_reg_nr);
+ }
insn = next_insn(p, BRW_OPCODE_SEND);
insn->header.predicate_control = 0; /* XXX */
@@ -2052,7 +2034,17 @@ void brw_urb_WRITE(struct brw_compile *p,
struct intel_context *intel = &p->brw->intel;
struct brw_instruction *insn;
- gen6_resolve_implied_move(p, &src0, msg_reg_nr);
+ /* Sandybridge doesn't have the implied move for SENDs,
+ * and the first message register index comes from src0.
+ */
+ if (intel->gen >= 6) {
+ brw_push_insn_state(p);
+ brw_set_mask_control( p, BRW_MASK_DISABLE );
+ brw_MOV(p, retype(brw_message_reg(msg_reg_nr), BRW_REGISTER_TYPE_UD),
+ retype(src0, BRW_REGISTER_TYPE_UD));
+ brw_pop_insn_state(p);
+ src0 = brw_message_reg(msg_reg_nr);
+ }
insn = next_insn(p, BRW_OPCODE_SEND);
@@ -2162,7 +2154,17 @@ void brw_ff_sync(struct brw_compile *p,
struct intel_context *intel = &p->brw->intel;
struct brw_instruction *insn;
- gen6_resolve_implied_move(p, &src0, msg_reg_nr);
+ /* Sandybridge doesn't have the implied move for SENDs,
+ * and the first message register index comes from src0.
+ */
+ if (intel->gen >= 6) {
+ brw_push_insn_state(p);
+ brw_set_mask_control( p, BRW_MASK_DISABLE );
+ brw_MOV(p, retype(brw_message_reg(msg_reg_nr), BRW_REGISTER_TYPE_UD),
+ retype(src0, BRW_REGISTER_TYPE_UD));
+ brw_pop_insn_state(p);
+ src0 = brw_message_reg(msg_reg_nr);
+ }
insn = next_insn(p, BRW_OPCODE_SEND);
brw_set_dest(p, insn, dest);