[Mesa-dev] [PATCH 19/19] r600g: convert the remnants of VGT state into immediate register writes

Marek Olšák maraeo at gmail.com
Mon Sep 10 16:16:32 PDT 2012


---
 src/gallium/drivers/r600/evergreen_hw_context.c |   16 -----------
 src/gallium/drivers/r600/r600.h                 |    7 -----
 src/gallium/drivers/r600/r600_hw_context.c      |   15 ++--------
 src/gallium/drivers/r600/r600_hw_context_priv.h |    2 +-
 src/gallium/drivers/r600/r600_pipe.h            |    8 +++---
 src/gallium/drivers/r600/r600_state_common.c    |   34 ++++++++++++-----------
 6 files changed, 26 insertions(+), 56 deletions(-)

diff --git a/src/gallium/drivers/r600/evergreen_hw_context.c b/src/gallium/drivers/r600/evergreen_hw_context.c
index 483021f..0c2159a 100644
--- a/src/gallium/drivers/r600/evergreen_hw_context.c
+++ b/src/gallium/drivers/r600/evergreen_hw_context.c
@@ -32,10 +32,6 @@ static const struct r600_reg cayman_config_reg_list[] = {
 	{R_00913C_SPI_CONFIG_CNTL_1, REG_FLAG_ENABLE_ALWAYS | REG_FLAG_FLUSH_CHANGE, 0},
 };
 
-static const struct r600_reg evergreen_ctl_const_list[] = {
-	{R_03CFF4_SQ_VTX_START_INST_LOC, 0, 0},
-};
-
 static const struct r600_reg evergreen_context_reg_list[] = {
 	{R_028008_DB_DEPTH_VIEW, 0, 0},
 	{R_028010_DB_RENDER_OVERRIDE2, 0, 0},
@@ -63,10 +59,6 @@ static const struct r600_reg evergreen_context_reg_list[] = {
 	{R_028254_PA_SC_VPORT_SCISSOR_0_BR, 0, 0},
 	{R_028350_SX_MISC, 0, 0},
 	{GROUP_FORCE_NEW_BLOCK, 0, 0},
-	{R_028408_VGT_INDX_OFFSET, 0, 0},
-	{R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX, 0, 0},
-	{R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, 0, 0},
-	{GROUP_FORCE_NEW_BLOCK, 0, 0},
 	{R_02861C_SPI_VS_OUT_ID_0, 0, 0},
 	{R_028620_SPI_VS_OUT_ID_1, 0, 0},
 	{R_028624_SPI_VS_OUT_ID_2, 0, 0},
@@ -353,10 +345,6 @@ static const struct r600_reg cayman_context_reg_list[] = {
 	{R_028254_PA_SC_VPORT_SCISSOR_0_BR, 0, 0},
 	{R_028350_SX_MISC, 0, 0},
 	{GROUP_FORCE_NEW_BLOCK, 0, 0},
-	{R_028408_VGT_INDX_OFFSET, 0, 0},
-	{R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX, 0, 0},
-	{R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, 0, 0},
-	{GROUP_FORCE_NEW_BLOCK, 0, 0},
 	{R_02861C_SPI_VS_OUT_ID_0, 0, 0},
 	{R_028620_SPI_VS_OUT_ID_1, 0, 0},
 	{R_028624_SPI_VS_OUT_ID_2, 0, 0},
@@ -664,10 +652,6 @@ int evergreen_context_init(struct r600_context *ctx)
 					   Elements(evergreen_context_reg_list), PKT3_SET_CONTEXT_REG, EVERGREEN_CONTEXT_REG_OFFSET);
 	if (r)
 		goto out_err;
-	r = r600_context_add_block(ctx, evergreen_ctl_const_list,
-				   Elements(evergreen_ctl_const_list), PKT3_SET_CTL_CONST, EVERGREEN_CTL_CONST_OFFSET);
-	if (r)
-		goto out_err;
 
 	/* PS loop const */
 	evergreen_loop_const_init(ctx, 0);
diff --git a/src/gallium/drivers/r600/r600.h b/src/gallium/drivers/r600/r600.h
index 6363a03..83d21a4 100644
--- a/src/gallium/drivers/r600/r600.h
+++ b/src/gallium/drivers/r600/r600.h
@@ -228,11 +228,4 @@ void _r600_pipe_state_add_reg(struct r600_context *ctx,
 #define r600_pipe_state_add_reg_bo(state, offset, value, bo, usage) _r600_pipe_state_add_reg_bo(rctx, state, offset, value, CTX_RANGE_ID(offset), CTX_BLOCK_ID(offset), bo, usage)
 #define r600_pipe_state_add_reg(state, offset, value) _r600_pipe_state_add_reg(rctx, state, offset, value, CTX_RANGE_ID(offset), CTX_BLOCK_ID(offset))
 
-static inline void r600_pipe_state_mod_reg(struct r600_pipe_state *state,
-					   uint32_t value)
-{
-	state->regs[state->nregs].value = value;
-	state->nregs++;
-}
-
 #endif
diff --git a/src/gallium/drivers/r600/r600_hw_context.c b/src/gallium/drivers/r600/r600_hw_context.c
index 57dcc7e..122f878 100644
--- a/src/gallium/drivers/r600/r600_hw_context.c
+++ b/src/gallium/drivers/r600/r600_hw_context.c
@@ -233,10 +233,6 @@ static const struct r600_reg r600_config_reg_list[] = {
 	{R_008C04_SQ_GPR_RESOURCE_MGMT_1, REG_FLAG_ENABLE_ALWAYS | REG_FLAG_FLUSH_CHANGE, 0},
 };
 
-static const struct r600_reg r600_ctl_const_list[] = {
-	{R_03CFF4_SQ_VTX_START_INST_LOC, 0, 0},
-};
-
 static const struct r600_reg r600_context_reg_list[] = {
 	{R_028A4C_PA_SC_MODE_CNTL, 0, 0},
 	{GROUP_FORCE_NEW_BLOCK, 0, 0},
@@ -461,9 +457,6 @@ static const struct r600_reg r600_context_reg_list[] = {
 	{GROUP_FORCE_NEW_BLOCK, 0, 0},
 	{R_028850_SQ_PGM_RESOURCES_PS, 0, 0},
 	{R_028854_SQ_PGM_EXPORTS_PS, 0, 0},
-	{R_028408_VGT_INDX_OFFSET, 0, 0},
-	{R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX, 0, 0},
-	{R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, 0, 0},
 	{R_028C1C_PA_SC_AA_SAMPLE_LOCS_MCTX, 0, 0},
 	{R_028C20_PA_SC_AA_SAMPLE_LOCS_8S_WD1_MCTX, 0, 0},
 };
@@ -555,10 +548,6 @@ int r600_context_init(struct r600_context *ctx)
 				   Elements(r600_context_reg_list), PKT3_SET_CONTEXT_REG, R600_CONTEXT_REG_OFFSET);
 	if (r)
 		goto out_err;
-	r = r600_context_add_block(ctx, r600_ctl_const_list,
-				   Elements(r600_ctl_const_list), PKT3_SET_CTL_CONST, R600_CTL_CONST_OFFSET);
-	if (r)
-		goto out_err;
 
 	/* PS loop const */
 	r600_loop_const_init(ctx, 0);
@@ -1067,8 +1056,10 @@ void r600_begin_new_cs(struct r600_context *ctx)
 		enable_block->nreg_dirty = enable_block->nreg;
 	}
 
-	/* Re-emit the primitive type. */
+	/* Re-emit the draw state. */
 	ctx->last_primitive_type = -1;
+	ctx->last_start_instance = -1;
+	ctx->last_prim_restart_enable = -1;
 }
 
 void r600_context_emit_fence(struct r600_context *ctx, struct r600_resource *fence_bo, unsigned offset, unsigned value)
diff --git a/src/gallium/drivers/r600/r600_hw_context_priv.h b/src/gallium/drivers/r600/r600_hw_context_priv.h
index 3326963..996bfaa 100644
--- a/src/gallium/drivers/r600/r600_hw_context_priv.h
+++ b/src/gallium/drivers/r600/r600_hw_context_priv.h
@@ -30,7 +30,7 @@
 
 /* the number of CS dwords for flushing and drawing */
 #define R600_MAX_FLUSH_CS_DWORDS 44
-#define R600_MAX_DRAW_CS_DWORDS 22
+#define R600_MAX_DRAW_CS_DWORDS 34
 
 /* these flags are used in register flags and added into block flags */
 #define REG_FLAG_NEED_BO 1
diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index 27d57d1..d8e2b71 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -142,7 +142,6 @@ enum r600_pipe_state_id {
 	R600_PIPE_STATE_BLEND = 0,
 	R600_PIPE_STATE_SCISSOR,
 	R600_PIPE_STATE_RASTERIZER,
-	R600_PIPE_STATE_VGT,
 	R600_PIPE_STATE_FRAMEBUFFER,
 	R600_PIPE_STATE_DSA,
 	R600_PIPE_STATE_POLYGON_OFFSET,
@@ -356,7 +355,6 @@ struct r600_context {
 	struct r600_pipe_shader_selector 	*ps_shader;
 	struct r600_pipe_shader_selector 	*vs_shader;
 	struct r600_pipe_rasterizer	*rasterizer;
-	struct r600_pipe_state          vgt;
 	struct r600_pipe_state          spi;
 	struct pipe_query		*current_render_cond;
 	unsigned			current_render_cond_mode;
@@ -476,8 +474,10 @@ struct r600_context {
 	struct r600_resource *dummy_fmask;
 	struct r600_resource *dummy_cmask;
 
-	/* Last primitive type used in draw_vbo. */
-	int last_primitive_type;
+	/* Last draw state (-1 = unset). */
+	int last_primitive_type; /* Last primitive type used in draw_vbo. */
+	int last_start_instance;
+	int last_prim_restart_enable;
 };
 
 static INLINE void r600_emit_atom(struct r600_context *rctx, struct r600_atom *atom)
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 8ff0cdf..68725d7 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -1197,22 +1197,6 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
 		info.index_bias = info.start;
 	}
 
-	if (rctx->vgt.id != R600_PIPE_STATE_VGT) {
-		rctx->vgt.id = R600_PIPE_STATE_VGT;
-		rctx->vgt.nregs = 0;
-		r600_pipe_state_add_reg(&rctx->vgt, R_028408_VGT_INDX_OFFSET, info.index_bias);
-		r600_pipe_state_add_reg(&rctx->vgt, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX, info.restart_index);
-		r600_pipe_state_add_reg(&rctx->vgt, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, info.primitive_restart);
-		r600_pipe_state_add_reg(&rctx->vgt, R_03CFF4_SQ_VTX_START_INST_LOC, info.start_instance);
-	}
-
-	rctx->vgt.nregs = 0;
-	r600_pipe_state_mod_reg(&rctx->vgt, info.index_bias);
-	r600_pipe_state_mod_reg(&rctx->vgt, info.restart_index);
-	r600_pipe_state_mod_reg(&rctx->vgt, info.primitive_restart);
-	r600_pipe_state_mod_reg(&rctx->vgt, info.start_instance);
-	r600_context_pipe_state_set(rctx, &rctx->vgt);
-
 	/* Enable stream out if needed. */
 	if (rctx->streamout_start) {
 		r600_context_streamout_begin(rctx);
@@ -1234,6 +1218,24 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
 	}
 	rctx->pm4_dirty_cdwords = 0;
 
+	/* Set the index offset. */
+	r600_write_context_reg(cs, R_028408_VGT_INDX_OFFSET, info.index_bias);
+
+	/* Update primitive restart. */
+	if (rctx->last_prim_restart_enable != info.primitive_restart) {
+		r600_write_context_reg(cs, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, info.primitive_restart);
+		rctx->last_prim_restart_enable = info.primitive_restart;
+	}
+	if (info.primitive_restart) {
+		r600_write_context_reg(cs, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX, info.restart_index);
+	}
+
+	/* Update start instance. */
+	if (rctx->last_start_instance != info.start_instance) {
+		r600_write_ctl_const(cs, R_03CFF4_SQ_VTX_START_INST_LOC, info.start_instance);
+		rctx->last_start_instance = info.start_instance;
+	}
+
 	/* Update the primitive type. */
 	if (rctx->last_primitive_type != info.mode) {
 		unsigned ls_mask = 0;
-- 
1.7.9.5



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