Mesa (master): i965: Add support for gen6 reladdr VS constant loading.
Eric Anholt
anholt at kemper.freedesktop.org
Fri Dec 10 04:28:20 UTC 2010
Module: Mesa
Branch: master
Commit: 3a3b1bd722786ab0b1386a3a505cadfa89798232
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3a3b1bd722786ab0b1386a3a505cadfa89798232
Author: Eric Anholt <eric at anholt.net>
Date: Thu Dec 9 09:42:05 2010 -0800
i965: Add support for gen6 reladdr VS constant loading.
---
src/mesa/drivers/dri/i965/brw_eu_emit.c | 2 +-
src/mesa/drivers/dri/i965/brw_vs_emit.c | 26 ++++++++++++++++----------
2 files changed, 17 insertions(+), 11 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c
index 93ccdde..9c764fe 100644
--- a/src/mesa/drivers/dri/i965/brw_eu_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c
@@ -1771,7 +1771,7 @@ void brw_dp_READ_4_vs_relative(struct brw_compile *p,
/* M1.0 is block offset 0, M1.4 is block offset 1, all other
* fields ignored.
*/
- brw_ADD(p, retype(brw_message_reg(1), BRW_REGISTER_TYPE_UD),
+ brw_ADD(p, retype(brw_message_reg(1), BRW_REGISTER_TYPE_D),
addr_reg, brw_imm_d(offset));
brw_pop_insn_state(p);
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c
index eccc6b7..add5e39 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c
@@ -1102,14 +1102,14 @@ get_reladdr_constant(struct brw_vs_compile *c,
{
const struct prog_src_register *src = &inst->SrcReg[argIndex];
struct brw_compile *p = &c->func;
+ struct brw_context *brw = p->brw;
+ struct intel_context *intel = &brw->intel;
struct brw_reg const_reg = c->current_const[argIndex].reg;
- struct brw_reg addrReg = c->regs[PROGRAM_ADDRESS][0];
- struct brw_reg byte_addr_reg = retype(get_tmp(c), BRW_REGISTER_TYPE_D);
+ struct brw_reg addr_reg = c->regs[PROGRAM_ADDRESS][0];
+ uint32_t offset;
assert(argIndex < 3);
- assert(c->func.brw->intel.gen < 6); /* FINISHME */
-
/* Can't reuse a reladdr constant load. */
c->current_const[argIndex].index = -1;
@@ -1118,15 +1118,21 @@ get_reladdr_constant(struct brw_vs_compile *c,
src->Index, argIndex, c->current_const[argIndex].reg.nr);
#endif
- brw_MUL(p, byte_addr_reg, addrReg, brw_imm_ud(16));
+ if (intel->gen >= 6) {
+ offset = src->Index;
+ } else {
+ struct brw_reg byte_addr_reg = retype(get_tmp(c), BRW_REGISTER_TYPE_D);
+ brw_MUL(p, byte_addr_reg, addr_reg, brw_imm_d(16));
+ addr_reg = byte_addr_reg;
+ offset = 16 * src->Index;
+ }
/* fetch the first vec4 */
brw_dp_READ_4_vs_relative(p,
- const_reg, /* writeback dest */
- byte_addr_reg, /* address register */
- 16 * src->Index, /* byte offset */
- SURF_INDEX_VERT_CONST_BUFFER /* binding table index */
- );
+ const_reg,
+ addr_reg,
+ offset,
+ SURF_INDEX_VERT_CONST_BUFFER);
return const_reg;
}
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