Mesa (master): r600g: R700+ can do more than 8 tex and vtx clause in one CF inst

[Christian König]

Module: Mesa
Branch: master
Commit: 2ed56d317046ed07f6a357905d89f0db54da80ad
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2ed56d317046ed07f6a357905d89f0db54da80ad

Author: Christian König <deathsimple at vodafone.de>
Date:   Wed Mar  9 13:11:10 2011 +0100

r600g: R700+ can do more than 8 tex and vtx clause in one CF inst

Reviewed-by: Henri Verbeet <hverbeet at gmail.com>

---

 src/gallium/drivers/r600/r600_asm.c |   22 ++++++++++++++++++++--
 1 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_asm.c b/src/gallium/drivers/r600/r600_asm.c
index 6a834f2..4ca3079 100644
--- a/src/gallium/drivers/r600/r600_asm.c
+++ b/src/gallium/drivers/r600/r600_asm.c
@@ -1247,6 +1247,24 @@ int r600_bc_add_alu(struct r600_bc *bc, const struct r600_bc_alu *alu)
 	return r600_bc_add_alu_type(bc, alu, BC_INST(bc, V_SQ_CF_ALU_WORD1_SQ_CF_INST_ALU));
 }
 
+static unsigned r600_bc_num_tex_and_vtx_instructions(const struct r600_bc *bc)
+{
+	switch (bc->chiprev) {
+	case CHIPREV_R600:
+		return 8;
+
+	case CHIPREV_R700:
+		return 16;
+
+	case CHIPREV_EVERGREEN:
+		return 64;
+
+	default:
+		R600_ERR("Unknown chiprev %d.\n", bc->chiprev);
+		return 8;
+	}
+}
+
 int r600_bc_add_vtx(struct r600_bc *bc, const struct r600_bc_vtx *vtx)
 {
 	struct r600_bc_vtx *nvtx = r600_bc_vtx();
@@ -1272,7 +1290,7 @@ int r600_bc_add_vtx(struct r600_bc *bc, const struct r600_bc_vtx *vtx)
 	/* each fetch use 4 dwords */
 	bc->cf_last->ndw += 4;
 	bc->ndw += 4;
-	if ((bc->cf_last->ndw / 4) > 7)
+	if ((bc->cf_last->ndw / 4) >= r600_bc_num_tex_and_vtx_instructions(bc))
 		bc->force_add_cf = 1;
 	return 0;
 }
@@ -1319,7 +1337,7 @@ int r600_bc_add_tex(struct r600_bc *bc, const struct r600_bc_tex *tex)
 	/* each texture fetch use 4 dwords */
 	bc->cf_last->ndw += 4;
 	bc->ndw += 4;
-	if ((bc->cf_last->ndw / 4) > 7)
+	if ((bc->cf_last->ndw / 4) >= r600_bc_num_tex_and_vtx_instructions(bc))
 		bc->force_add_cf = 1;
 	return 0;
 }