[Mesa-dev] [PATCH 13/22] r600g: move CB_TARGET_MASK setup into new cb_misc_state

Tom Stellard thomas.stellard at amd.com
Wed Jul 11 12:26:40 PDT 2012


On Mon, Jul 09, 2012 at 09:15:46PM +0200, Marek Olšák wrote:
> to remove some overhead from draw_vbo. This is a derived state.
> 
> BTW, I've got no idea how compute interacts with 3D here, but it should
> use cb_misc_state, so that 3D and compute don't conflict.

The compute changes look fine to me.  I just tested and there are no
regressions.  I'll change the compute code to use cb_misc_state when I
get a change.

Reviewed-by: Tom Stellard <thomas.stellard at amd.com>

> ---
>  src/gallium/drivers/r600/evergreen_compute.c       |    3 +--
>  .../drivers/r600/evergreen_compute_internal.c      |    2 +-
>  src/gallium/drivers/r600/evergreen_hw_context.c    |    2 --
>  src/gallium/drivers/r600/evergreen_state.c         |   17 +++++++++++++++++
>  src/gallium/drivers/r600/r600_hw_context.c         |    2 +-
>  src/gallium/drivers/r600/r600_pipe.h               |    9 ++++++++-
>  src/gallium/drivers/r600/r600_state.c              |   17 +++++++++++++++++
>  src/gallium/drivers/r600/r600_state_common.c       |   12 ++++++------
>  8 files changed, 51 insertions(+), 13 deletions(-)
> 
> diff --git a/src/gallium/drivers/r600/evergreen_compute.c b/src/gallium/drivers/r600/evergreen_compute.c
> index 40200ae..322994d 100644
> --- a/src/gallium/drivers/r600/evergreen_compute.c
> +++ b/src/gallium/drivers/r600/evergreen_compute.c
> @@ -280,10 +280,9 @@ void evergreen_direct_dispatch(
>  
>  	struct evergreen_compute_resource* res = get_empty_res(rctx->cs_shader,
>  		COMPUTE_RESOURCE_DISPATCH, 0);
> -        struct r600_pipe_state * cb_state = rctx->states[R600_PIPE_STATE_FRAMEBUFFER];
>  
>  	/* Set CB_TARGET_MASK */
> -	r600_pipe_state_add_reg(cb_state, R_028238_CB_TARGET_MASK, rctx->cb_target_mask);
> +	evergreen_reg_set(res, R_028238_CB_TARGET_MASK, rctx->compute_cb_target_mask);
>  
>  	evergreen_reg_set(res, R_008958_VGT_PRIMITIVE_TYPE, V_008958_DI_PT_POINTLIST);
>  
> diff --git a/src/gallium/drivers/r600/evergreen_compute_internal.c b/src/gallium/drivers/r600/evergreen_compute_internal.c
> index eb86a34..c5aad93 100644
> --- a/src/gallium/drivers/r600/evergreen_compute_internal.c
> +++ b/src/gallium/drivers/r600/evergreen_compute_internal.c
> @@ -289,7 +289,7 @@ void evergreen_set_rat(
>  	 * XXX: I think this is a potential spot for bugs once we start doing
>  	 * GL interop.  cb_target_mask may be modified in the 3D sections
>  	 * of this driver. */
> -	pipe->ctx->cb_target_mask |= (0xf << (id * 4));
> +	pipe->ctx->compute_cb_target_mask |= (0xf << (id * 4));
>  
>  
>  	/* Get the CB register writes for the RAT */
> diff --git a/src/gallium/drivers/r600/evergreen_hw_context.c b/src/gallium/drivers/r600/evergreen_hw_context.c
> index 2ab29c9..dcbe0a4 100644
> --- a/src/gallium/drivers/r600/evergreen_hw_context.c
> +++ b/src/gallium/drivers/r600/evergreen_hw_context.c
> @@ -66,7 +66,6 @@ static const struct r600_reg evergreen_context_reg_list[] = {
>  	{R_028204_PA_SC_WINDOW_SCISSOR_TL, 0, 0},
>  	{R_028208_PA_SC_WINDOW_SCISSOR_BR, 0, 0},
>  	{R_028234_PA_SU_HARDWARE_SCREEN_OFFSET, 0, 0},
> -	{R_028238_CB_TARGET_MASK, 0, 0},
>  	{R_02823C_CB_SHADER_MASK, 0, 0},
>  	{R_028250_PA_SC_VPORT_SCISSOR_0_TL, 0, 0},
>  	{R_028254_PA_SC_VPORT_SCISSOR_0_BR, 0, 0},
> @@ -326,7 +325,6 @@ static const struct r600_reg cayman_context_reg_list[] = {
>  	{R_028204_PA_SC_WINDOW_SCISSOR_TL, 0, 0},
>  	{R_028208_PA_SC_WINDOW_SCISSOR_BR, 0, 0},
>  	{R_028234_PA_SU_HARDWARE_SCREEN_OFFSET, 0, 0},
> -	{R_028238_CB_TARGET_MASK, 0, 0},
>  	{R_02823C_CB_SHADER_MASK, 0, 0},
>  	{R_028250_PA_SC_VPORT_SCISSOR_0_TL, 0, 0},
>  	{R_028254_PA_SC_VPORT_SCISSOR_0_BR, 0, 0},
> diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
> index 8b5f664..600e81f 100644
> --- a/src/gallium/drivers/r600/evergreen_state.c
> +++ b/src/gallium/drivers/r600/evergreen_state.c
> @@ -1728,6 +1728,21 @@ static void evergreen_set_framebuffer_state(struct pipe_context *ctx,
>  	if (state->zsbuf) {
>  		evergreen_polygon_offset_update(rctx);
>  	}
> +
> +	if (rctx->cb_misc_state.nr_cbufs != state->nr_cbufs) {
> +		rctx->cb_misc_state.nr_cbufs = state->nr_cbufs;
> +		r600_atom_dirty(rctx, &rctx->cb_misc_state.atom);
> +	}
> +}
> +
> +static void evergreen_emit_cb_misc_state(struct r600_context *rctx, struct r600_atom *atom)
> +{
> +	struct radeon_winsys_cs *cs = rctx->cs;
> +	struct r600_cb_misc_state *a = (struct r600_cb_misc_state*)atom;
> +	unsigned fb_colormask = (1ULL << ((unsigned)a->nr_cbufs * 4)) - 1;
> +
> +	r600_write_context_reg(cs, R_028238_CB_TARGET_MASK,
> +			       a->blend_colormask & fb_colormask);
>  }
>  
>  static void evergreen_emit_db_misc_state(struct r600_context *rctx, struct r600_atom *atom)
> @@ -1862,6 +1877,8 @@ static void evergreen_emit_ps_constant_buffer(struct r600_context *rctx, struct
>  
>  void evergreen_init_state_functions(struct r600_context *rctx)
>  {
> +	r600_init_atom(&rctx->cb_misc_state.atom, evergreen_emit_cb_misc_state, 0, 0);
> +	r600_atom_dirty(rctx, &rctx->cb_misc_state.atom);
>  	r600_init_atom(&rctx->db_misc_state.atom, evergreen_emit_db_misc_state, 6, 0);
>  	r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
>  	r600_init_atom(&rctx->vertex_buffer_state, evergreen_emit_vertex_buffers, 0, 0);
> diff --git a/src/gallium/drivers/r600/r600_hw_context.c b/src/gallium/drivers/r600/r600_hw_context.c
> index cbb8914..d387678 100644
> --- a/src/gallium/drivers/r600/r600_hw_context.c
> +++ b/src/gallium/drivers/r600/r600_hw_context.c
> @@ -336,7 +336,6 @@ static const struct r600_reg r600_context_reg_list[] = {
>  	{R_028128_CB_CLEAR_BLUE, 0, 0},
>  	{R_02812C_CB_CLEAR_ALPHA, 0, 0},
>  	{R_02823C_CB_SHADER_MASK, 0, 0},
> -	{R_028238_CB_TARGET_MASK, 0, 0},
>  	{R_028410_SX_ALPHA_TEST_CONTROL, 0, 0},
>  	{R_028414_CB_BLEND_RED, 0, 0},
>  	{R_028418_CB_BLEND_GREEN, 0, 0},
> @@ -1283,6 +1282,7 @@ void r600_context_flush(struct r600_context *ctx, unsigned flags)
>  	r600_flush_framebuffer(ctx, false);
>  
>  	/* Re-emit states. */
> +	r600_atom_dirty(ctx, &ctx->cb_misc_state.atom);
>  	r600_atom_dirty(ctx, &ctx->db_misc_state.atom);
>  	r600_atom_dirty(ctx, &ctx->vertex_buffer_state);
>  
> diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
> index 0785ade..3d33348 100644
> --- a/src/gallium/drivers/r600/r600_pipe.h
> +++ b/src/gallium/drivers/r600/r600_pipe.h
> @@ -82,6 +82,12 @@ struct r600_db_misc_state {
>  	bool flush_depthstencil_enabled;
>  };
>  
> +struct r600_cb_misc_state {
> +	struct r600_atom atom;
> +	unsigned blend_colormask; /* 8*4 bits for 8 RGBA colorbuffers */
> +	unsigned nr_cbufs;
> +};
> +
>  enum r600_pipe_state_id {
>  	R600_PIPE_STATE_BLEND = 0,
>  	R600_PIPE_STATE_BLEND_COLOR,
> @@ -281,8 +287,8 @@ struct r600_context {
>  	struct r600_pipe_state		*states[R600_PIPE_NSTATES];
>  	struct r600_vertex_element	*vertex_elements;
>  	struct pipe_framebuffer_state	framebuffer;
> -	unsigned			cb_target_mask;
>  	unsigned			fb_cb_shader_mask;
> +	unsigned			compute_cb_target_mask;
>  	unsigned			sx_alpha_test_control;
>  	unsigned			cb_shader_mask;
>  	unsigned			db_shader_control;
> @@ -329,6 +335,7 @@ struct r600_context {
>          struct r600_command_buffer      start_compute_cs_cmd;
>  	struct r600_surface_sync_cmd	surface_sync_cmd;
>  	struct r600_atom		r6xx_flush_and_inv_cmd;
> +	struct r600_cb_misc_state	cb_misc_state;
>  	struct r600_db_misc_state	db_misc_state;
>  	struct r600_atom		vertex_buffer_state;
>  	struct r600_constbuf_state	vs_constbuf_state;
> diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
> index 0ba7fad..a7eb7b6 100644
> --- a/src/gallium/drivers/r600/r600_state.c
> +++ b/src/gallium/drivers/r600/r600_state.c
> @@ -1691,6 +1691,21 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx,
>  	if (state->zsbuf) {
>  		r600_polygon_offset_update(rctx);
>  	}
> +
> +	if (rctx->cb_misc_state.nr_cbufs != state->nr_cbufs) {
> +		rctx->cb_misc_state.nr_cbufs = state->nr_cbufs;
> +		r600_atom_dirty(rctx, &rctx->cb_misc_state.atom);
> +	}
> +}
> +
> +static void r600_emit_cb_misc_state(struct r600_context *rctx, struct r600_atom *atom)
> +{
> +	struct radeon_winsys_cs *cs = rctx->cs;
> +	struct r600_cb_misc_state *a = (struct r600_cb_misc_state*)atom;
> +	unsigned fb_colormask = (1ULL << ((unsigned)a->nr_cbufs * 4)) - 1;
> +
> +	r600_write_context_reg(cs, R_028238_CB_TARGET_MASK,
> +			       a->blend_colormask & fb_colormask);
>  }
>  
>  static void r600_emit_db_misc_state(struct r600_context *rctx, struct r600_atom *atom)
> @@ -1818,6 +1833,8 @@ static void r600_emit_ps_constant_buffer(struct r600_context *rctx, struct r600_
>  
>  void r600_init_state_functions(struct r600_context *rctx)
>  {
> +	r600_init_atom(&rctx->cb_misc_state.atom, r600_emit_cb_misc_state, 0, 0);
> +	r600_atom_dirty(rctx, &rctx->cb_misc_state.atom);
>  	r600_init_atom(&rctx->db_misc_state.atom, r600_emit_db_misc_state, 4, 0);
>  	r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
>  	r600_init_atom(&rctx->vertex_buffer_state, r600_emit_vertex_buffers, 0, 0);
> diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
> index 2cf0171..0e071d0 100644
> --- a/src/gallium/drivers/r600/r600_state_common.c
> +++ b/src/gallium/drivers/r600/r600_state_common.c
> @@ -157,12 +157,16 @@ void r600_bind_blend_state(struct pipe_context *ctx, void *state)
>  		return;
>  	rstate = &blend->rstate;
>  	rctx->states[rstate->id] = rstate;
> -	rctx->cb_target_mask = blend->cb_target_mask;
>  	/* Replace every bit except MULTIWRITE_ENABLE. */
>  	rctx->cb_color_control &= ~C_028808_MULTIWRITE_ENABLE;
>  	rctx->cb_color_control |= blend->cb_color_control & C_028808_MULTIWRITE_ENABLE;
>  	rctx->dual_src_blend = blend->dual_src_blend;
>  	r600_context_pipe_state_set(rctx, rstate);
> +
> +	if (rctx->cb_misc_state.blend_colormask != blend->cb_target_mask) {
> +		rctx->cb_misc_state.blend_colormask = blend->cb_target_mask;
> +		r600_atom_dirty(rctx, &rctx->cb_misc_state.atom);
> +	}
>  }
>  
>  void r600_set_blend_color(struct pipe_context *ctx,
> @@ -848,7 +852,7 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
>  	struct r600_context *rctx = (struct r600_context *)ctx;
>  	struct pipe_draw_info info = *dinfo;
>  	struct pipe_index_buffer ib = {};
> -	unsigned prim, mask, ls_mask = 0;
> +	unsigned prim, ls_mask = 0;
>  	struct r600_block *dirty_block = NULL, *next_block = NULL;
>  	struct r600_atom *state = NULL, *next_state = NULL;
>  	struct radeon_winsys_cs *cs = rctx->cs;
> @@ -890,14 +894,11 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
>  		}
>  	}
>  
> -	mask = (1ULL << ((unsigned)rctx->framebuffer.nr_cbufs * 4)) - 1;
> -
>  	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_008958_VGT_PRIMITIVE_TYPE, prim);
>  		r600_pipe_state_add_reg(&rctx->vgt, R_028A6C_VGT_GS_OUT_PRIM_TYPE, 0);
> -		r600_pipe_state_add_reg(&rctx->vgt, R_028238_CB_TARGET_MASK, rctx->cb_target_mask & mask);
>  		r600_pipe_state_add_reg(&rctx->vgt, R_02823C_CB_SHADER_MASK, 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);
> @@ -919,7 +920,6 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
>  	rctx->vgt.nregs = 0;
>  	r600_pipe_state_mod_reg(&rctx->vgt, prim);
>  	r600_pipe_state_mod_reg(&rctx->vgt, r600_conv_prim_to_gs_out(info.mode));
> -	r600_pipe_state_mod_reg(&rctx->vgt, rctx->cb_target_mask & mask);
>  	r600_pipe_state_mod_reg(&rctx->vgt, rctx->cb_shader_mask);
>  	r600_pipe_state_mod_reg(&rctx->vgt, info.index_bias);
>  	r600_pipe_state_mod_reg(&rctx->vgt, info.restart_index);
> -- 
> 1.7.9.5
> 
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