Mesa (master): radeonsi: Fixups for drawing with an index buffer.

[Michel Dänzer]

Module: Mesa
Branch: master
Commit: 36abadd0dbc9ca5dd1ca9b2842ec5ab78e640ccb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=36abadd0dbc9ca5dd1ca9b2842ec5ab78e640ccb

Author: Michel Dänzer <michel.daenzer at amd.com>
Date:   Fri May 11 15:26:15 2012 +0200

radeonsi: Fixups for drawing with an index buffer.

Mostly using the DRAW_INDEX_2 type 3 packet instead of DRAW_INDEX, which is
no longer supported on SI.

---

 .../drivers/radeonsi/evergreen_hw_context.c        |   20 +++++++++++---------
 src/gallium/drivers/radeonsi/r600.h                |    3 +--
 src/gallium/drivers/radeonsi/r600_state_common.c   |    4 +---
 3 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/evergreen_hw_context.c b/src/gallium/drivers/radeonsi/evergreen_hw_context.c
index 549673f..0ac9928 100644
--- a/src/gallium/drivers/radeonsi/evergreen_hw_context.c
+++ b/src/gallium/drivers/radeonsi/evergreen_hw_context.c
@@ -467,7 +467,7 @@ static inline void evergreen_context_ps_partial_flush(struct r600_context *ctx)
 	ctx->flags &= ~R600_CONTEXT_DRAW_PENDING;
 }
 
-void evergreen_context_draw(struct r600_context *ctx, const struct r600_draw *draw)
+void si_context_draw(struct r600_context *ctx, const struct r600_draw *draw)
 {
 	struct radeon_winsys_cs *cs = ctx->cs;
 	unsigned ndwords = 7;
@@ -475,7 +475,7 @@ void evergreen_context_draw(struct r600_context *ctx, const struct r600_draw *dr
 	uint64_t va;
 
 	if (draw->indices) {
-		ndwords = 11;
+		ndwords = 12;
 	}
 	if (ctx->num_cs_dw_queries_suspend)
 		ndwords += 6;
@@ -506,13 +506,15 @@ void evergreen_context_draw(struct r600_context *ctx, const struct r600_draw *dr
 	if (draw->indices) {
 		va = r600_resource_va(&ctx->screen->screen, (void*)draw->indices);
 		va += draw->indices_bo_offset;
-		pm4[4] = PKT3(PKT3_DRAW_INDEX, 3, ctx->predicate_drawing);
-		pm4[5] = va;
-		pm4[6] = (va >> 32UL) & 0xFF;
-		pm4[7] = draw->vgt_num_indices;
-		pm4[8] = draw->vgt_draw_initiator;
-		pm4[9] = PKT3(PKT3_NOP, 0, ctx->predicate_drawing);
-		pm4[10] = r600_context_bo_reloc(ctx, draw->indices, RADEON_USAGE_READ);
+		pm4[4] = PKT3(PKT3_DRAW_INDEX_2, 4, ctx->predicate_drawing);
+		pm4[5] = (draw->indices->b.b.width0 - draw->indices_bo_offset) /
+			ctx->index_buffer.index_size;
+		pm4[6] = va;
+		pm4[7] = (va >> 32UL) & 0xFF;
+		pm4[8] = draw->vgt_num_indices;
+		pm4[9] = draw->vgt_draw_initiator;
+		pm4[10] = PKT3(PKT3_NOP, 0, ctx->predicate_drawing);
+		pm4[11] = r600_context_bo_reloc(ctx, draw->indices, RADEON_USAGE_READ);
 	} else {
 		pm4[4] = PKT3(PKT3_DRAW_INDEX_AUTO, 1, ctx->predicate_drawing);
 		pm4[5] = draw->vgt_num_indices;
diff --git a/src/gallium/drivers/radeonsi/r600.h b/src/gallium/drivers/radeonsi/r600.h
index 932016a..f72701e 100644
--- a/src/gallium/drivers/radeonsi/r600.h
+++ b/src/gallium/drivers/radeonsi/r600.h
@@ -181,7 +181,6 @@ void r600_get_backend_mask(struct r600_context *ctx);
 void r600_context_fini(struct r600_context *ctx);
 void r600_context_pipe_state_set(struct r600_context *ctx, struct r600_pipe_state *state);
 void r600_context_flush(struct r600_context *ctx, unsigned flags);
-void r600_context_draw(struct r600_context *ctx, const struct r600_draw *draw);
 
 struct r600_query *r600_context_query_create(struct r600_context *ctx, unsigned query_type);
 void r600_context_query_destroy(struct r600_context *ctx, struct r600_query *query);
@@ -209,7 +208,7 @@ void r600_context_block_emit_dirty(struct r600_context *ctx, struct r600_block *
 void r600_context_block_resource_emit_dirty(struct r600_context *ctx, struct r600_block *block);
 
 int si_context_init(struct r600_context *ctx);
-void evergreen_context_draw(struct r600_context *ctx, const struct r600_draw *draw);
+void si_context_draw(struct r600_context *ctx, const struct r600_draw *draw);
 
 void _r600_pipe_state_add_reg(struct r600_context *ctx,
 			      struct r600_pipe_state *state,
diff --git a/src/gallium/drivers/radeonsi/r600_state_common.c b/src/gallium/drivers/radeonsi/r600_state_common.c
index 06eb96b..ca5578b 100644
--- a/src/gallium/drivers/radeonsi/r600_state_common.c
+++ b/src/gallium/drivers/radeonsi/r600_state_common.c
@@ -848,9 +848,7 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
 					      RADEON_USAGE_READ);
 	}
 
-	if (rctx->chip_class >= CAYMAN) {
-		evergreen_context_draw(rctx, &rdraw);
-	}
+	si_context_draw(rctx, &rdraw);
 
 	rctx->flags |= R600_CONTEXT_DST_CACHES_DIRTY | R600_CONTEXT_DRAW_PENDING;