[Mesa-dev] [PATCH 1/3] gallium: add pipe_grid_info::last_block

Liu, Leo Leo.Liu at amd.com
Fri Mar 1 21:51:49 UTC 2019


Series are:

Acked-by: Leo Liu <leo.liu at amd.com>

On 2/27/19 5:19 PM, Marek Olšák wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> The OpenMAX state tracker will use this.
>
> RadeonSI is adapted to use pipe_grid_info::last_block instead of its
> internal state.
> ---
>   src/gallium/auxiliary/util/u_screen.c         |  3 +++
>   src/gallium/docs/source/screen.rst            |  2 ++
>   src/gallium/drivers/radeonsi/si_compute.c     |  2 +-
>   .../drivers/radeonsi/si_compute_blit.c        | 18 +++++----------
>   src/gallium/drivers/radeonsi/si_get.c         |  1 +
>   src/gallium/drivers/radeonsi/si_pipe.h        | 22 -------------------
>   src/gallium/include/pipe/p_defines.h          |  1 +
>   src/gallium/include/pipe/p_state.h            | 21 ++++++++++++++++++
>   8 files changed, 35 insertions(+), 35 deletions(-)
>
> diff --git a/src/gallium/auxiliary/util/u_screen.c b/src/gallium/auxiliary/util/u_screen.c
> index 50964f3b3ef..b902c083ad4 100644
> --- a/src/gallium/auxiliary/util/u_screen.c
> +++ b/src/gallium/auxiliary/util/u_screen.c
> @@ -334,14 +334,17 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
>         return 2047;
>   
>      case PIPE_CAP_SURFACE_SAMPLE_COUNT:
>         return 0;
>      case PIPE_CAP_DEST_SURFACE_SRGB_CONTROL:
>         return 1;
>   
>      case PIPE_CAP_MAX_VARYINGS:
>         return 8;
>   
> +   case PIPE_CAP_COMPUTE_GRID_INFO_LAST_BLOCK:
> +      return 0;
> +
>      default:
>         unreachable("bad PIPE_CAP_*");
>      }
>   }
> diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
> index 85ca5e1f5ce..60ba9bcbde0 100644
> --- a/src/gallium/docs/source/screen.rst
> +++ b/src/gallium/docs/source/screen.rst
> @@ -485,20 +485,22 @@ The integer capabilities:
>   * ``PIPE_CAP_RGB_OVERRIDE_DST_ALPHA_BLEND``: True if the driver needs blend state to use zero/one instead of destination alpha for RGB/XRGB formats.
>   * ``PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS``: True if the driver wants TESSINNER and TESSOUTER to be inputs (rather than system values) for tessellation evaluation shaders.
>   * ``PIPE_CAP_DEST_SURFACE_SRGB_CONTROL``: Indicates whether the drivers
>     supports switching the format between sRGB and linear for a surface that is
>     used as destination in draw and blit calls.
>   * ``PIPE_CAP_NIR_COMPACT_ARRAYS``: True if the compiler backend supports NIR's compact array feature, for all shader stages.
>   * ``PIPE_CAP_MAX_VARYINGS``: The maximum number of fragment shader
>     varyings. This will generally correspond to
>     ``PIPE_SHADER_CAP_MAX_INPUTS`` for the fragment shader, but in some
>     cases may be a smaller number.
> +* ``PIPE_CAP_COMPUTE_GRID_INFO_LAST_BLOCK``: Whether pipe_grid_info::last_block
> +  is implemented by the driver. See struct pipe_grid_info for more details.
>   
>   .. _pipe_capf:
>   
>   PIPE_CAPF_*
>   ^^^^^^^^^^^^^^^^
>   
>   The floating-point capabilities are:
>   
>   * ``PIPE_CAPF_MAX_LINE_WIDTH``: The maximum width of a regular line.
>   * ``PIPE_CAPF_MAX_LINE_WIDTH_AA``: The maximum width of a smoothed line.
> diff --git a/src/gallium/drivers/radeonsi/si_compute.c b/src/gallium/drivers/radeonsi/si_compute.c
> index 87addd53976..6c2269d903a 100644
> --- a/src/gallium/drivers/radeonsi/si_compute.c
> +++ b/src/gallium/drivers/radeonsi/si_compute.c
> @@ -797,21 +797,21 @@ static void si_emit_dispatch_packets(struct si_context *sctx,
>   	radeon_set_sh_reg(cs, R_00B854_COMPUTE_RESOURCE_LIMITS,
>   			  compute_resource_limits);
>   
>   	unsigned dispatch_initiator =
>   		S_00B800_COMPUTE_SHADER_EN(1) |
>   		S_00B800_FORCE_START_AT_000(1) |
>   		/* If the KMD allows it (there is a KMD hw register for it),
>   		 * allow launching waves out-of-order. (same as Vulkan) */
>   		S_00B800_ORDER_MODE(sctx->chip_class >= CIK);
>   
> -	uint *last_block = sctx->compute_last_block;
> +	uint *last_block = info->last_block;
>   	bool partial_block_en = last_block[0] || last_block[1] || last_block[2];
>   
>   	radeon_set_sh_reg_seq(cs, R_00B81C_COMPUTE_NUM_THREAD_X, 3);
>   
>   	if (partial_block_en) {
>   		unsigned partial[3];
>   
>   		/* If no partial_block, these should be an entire block size, not 0. */
>   		partial[0] = last_block[0] ? last_block[0] : info->block[0];
>   		partial[1] = last_block[1] ? last_block[1] : info->block[1];
> diff --git a/src/gallium/drivers/radeonsi/si_compute_blit.c b/src/gallium/drivers/radeonsi/si_compute_blit.c
> index f5e9c02dd10..a7453099ac6 100644
> --- a/src/gallium/drivers/radeonsi/si_compute_blit.c
> +++ b/src/gallium/drivers/radeonsi/si_compute_blit.c
> @@ -374,45 +374,42 @@ void si_compute_copy_image(struct si_context *sctx,
>   	ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 2, image);
>   
>   	struct pipe_grid_info info = {0};
>   
>   	if (dst->target == PIPE_TEXTURE_1D_ARRAY && src->target == PIPE_TEXTURE_1D_ARRAY) {
>   		if (!sctx->cs_copy_image_1d_array)
>   			sctx->cs_copy_image_1d_array =
>   				si_create_copy_image_compute_shader_1d_array(ctx);
>   		ctx->bind_compute_state(ctx, sctx->cs_copy_image_1d_array);
>   		info.block[0] = 64;
> -		sctx->compute_last_block[0] = width % 64;
> +		info.last_block[0] = width % 64;
>   		info.block[1] = 1;
>   		info.block[2] = 1;
>   		info.grid[0] = DIV_ROUND_UP(width, 64);
>   		info.grid[1] = depth;
>   		info.grid[2] = 1;
>   	} else {
>   		if (!sctx->cs_copy_image)
>   			sctx->cs_copy_image = si_create_copy_image_compute_shader(ctx);
>   		ctx->bind_compute_state(ctx, sctx->cs_copy_image);
>   		info.block[0] = 8;
> -		sctx->compute_last_block[0] = width % 8;
> +		info.last_block[0] = width % 8;
>   		info.block[1] = 8;
> -		sctx->compute_last_block[1] = height % 8;
> +		info.last_block[1] = height % 8;
>   		info.block[2] = 1;
>   		info.grid[0] = DIV_ROUND_UP(width, 8);
>   		info.grid[1] = DIV_ROUND_UP(height, 8);
>   		info.grid[2] = depth;
>   	}
>   
>   	ctx->launch_grid(ctx, &info);
>   
> -	sctx->compute_last_block[0] = 0;
> -	sctx->compute_last_block[1] = 0;
> -
>   	sctx->flags |= SI_CONTEXT_CS_PARTIAL_FLUSH |
>   		       (sctx->chip_class <= VI ? SI_CONTEXT_WRITEBACK_GLOBAL_L2 : 0) |
>   		       si_get_flush_flags(sctx, SI_COHERENCY_SHADER, L2_STREAM);
>   	ctx->bind_compute_state(ctx, saved_cs);
>   	ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 2, saved_image);
>   	ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, &saved_cb);
>   	si_compute_internal_end(sctx);
>   }
>   
>   void si_init_compute_blit_functions(struct si_context *sctx)
> @@ -476,44 +473,41 @@ void si_compute_clear_render_target(struct pipe_context *ctx,
>   
>   	ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 1, &image);
>   
>   	struct pipe_grid_info info = {0};
>   
>   	if (dstsurf->texture->target != PIPE_TEXTURE_1D_ARRAY) {
>   		if (!sctx->cs_clear_render_target)
>   			sctx->cs_clear_render_target = si_clear_render_target_shader(ctx);
>   		ctx->bind_compute_state(ctx, sctx->cs_clear_render_target);
>   		info.block[0] = 8;
> -		sctx->compute_last_block[0] = width % 8;
> +		info.last_block[0] = width % 8;
>   		info.block[1] = 8;
> -		sctx->compute_last_block[1] = height % 8;
> +		info.last_block[1] = height % 8;
>   		info.block[2] = 1;
>   		info.grid[0] = DIV_ROUND_UP(width, 8);
>   		info.grid[1] = DIV_ROUND_UP(height, 8);
>   		info.grid[2] = num_layers;
>   	} else {
>   		if (!sctx->cs_clear_render_target_1d_array)
>   			sctx->cs_clear_render_target_1d_array =
>   				si_clear_render_target_shader_1d_array(ctx);
>   		ctx->bind_compute_state(ctx, sctx->cs_clear_render_target_1d_array);
>   		info.block[0] = 64;
> -		sctx->compute_last_block[0] = width % 64;
> +		info.last_block[0] = width % 64;
>   		info.block[1] = 1;
>   		info.block[2] = 1;
>   		info.grid[0] = DIV_ROUND_UP(width, 64);
>   		info.grid[1] = num_layers;
>   		info.grid[2] = 1;
>   	}
>   
>   	ctx->launch_grid(ctx, &info);
>   
> -	sctx->compute_last_block[0] = 0;
> -	sctx->compute_last_block[1] = 0;
> -
>   	sctx->flags |= SI_CONTEXT_CS_PARTIAL_FLUSH |
>   		       (sctx->chip_class <= VI ? SI_CONTEXT_WRITEBACK_GLOBAL_L2 : 0) |
>   		       si_get_flush_flags(sctx, SI_COHERENCY_SHADER, L2_STREAM);
>   	ctx->bind_compute_state(ctx, saved_cs);
>   	ctx->set_shader_images(ctx, PIPE_SHADER_COMPUTE, 0, 1, &saved_image);
>   	ctx->set_constant_buffer(ctx, PIPE_SHADER_COMPUTE, 0, &saved_cb);
>   	si_compute_internal_end(sctx);
>   }
> diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c
> index a5cb209b59e..6fa67087c7d 100644
> --- a/src/gallium/drivers/radeonsi/si_get.c
> +++ b/src/gallium/drivers/radeonsi/si_get.c
> @@ -153,20 +153,21 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>   	case PIPE_CAP_INT64:
>   	case PIPE_CAP_INT64_DIVMOD:
>   	case PIPE_CAP_TGSI_CLOCK:
>   	case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
>   	case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
>   	case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
>   	case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
>   	case PIPE_CAP_TGSI_BALLOT:
>   	case PIPE_CAP_TGSI_VOTE:
>   	case PIPE_CAP_TGSI_FS_FBFETCH:
> +	case PIPE_CAP_COMPUTE_GRID_INFO_LAST_BLOCK:
>   		return 1;
>   
>   	case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
>   		return !SI_BIG_ENDIAN && sscreen->info.has_userptr;
>   
>   	case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
>   		return sscreen->info.has_gpu_reset_status_query ||
>   		       sscreen->info.has_gpu_reset_counter_query;
>   
>   	case PIPE_CAP_TEXTURE_MULTISAMPLE:
> diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
> index b3198d45ea6..b6858b46ec0 100644
> --- a/src/gallium/drivers/radeonsi/si_pipe.h
> +++ b/src/gallium/drivers/radeonsi/si_pipe.h
> @@ -914,42 +914,20 @@ struct si_context {
>   	struct pipe_resource		*gsvs_ring;
>   	struct pipe_resource		*tess_rings;
>   	union pipe_color_union		*border_color_table; /* in CPU memory, any endian */
>   	struct si_resource		*border_color_buffer;
>   	union pipe_color_union		*border_color_map; /* in VRAM (slow access), little endian */
>   	unsigned			border_color_count;
>   	unsigned			num_vs_blit_sgprs;
>   	uint32_t			vs_blit_sh_data[SI_VS_BLIT_SGPRS_POS_TEXCOORD];
>   	uint32_t			cs_user_data[4];
>   
> -        /**
> -         * last_block allows disabling threads at the farthermost grid boundary.
> -         * Full blocks as specified by "block" are launched, but the threads
> -         * outside of "last_block" dimensions are disabled.
> -         *
> -         * If a block touches the grid boundary in the i-th axis, threads with
> -         * THREAD_ID[i] >= last_block[i] are disabled.
> -         *
> -         * If last_block[i] is 0, it has the same behavior as last_block[i] = block[i],
> -         * meaning no effect.
> -         *
> -         * It's equivalent to doing this at the beginning of the compute shader:
> -         *
> -         *   for (i = 0; i < 3; i++) {
> -         *      if (block_id[i] == grid[i] - 1 &&
> -         *          last_block[i] && last_block[i] >= thread_id[i])
> -         *         return;
> -         *   }
> -         * (this could be moved into pipe_grid_info)
> -         */
> -        uint compute_last_block[3];
> -
>   	/* Vertex and index buffers. */
>   	bool				vertex_buffers_dirty;
>   	bool				vertex_buffer_pointer_dirty;
>   	struct pipe_vertex_buffer	vertex_buffer[SI_NUM_VERTEX_BUFFERS];
>   
>   	/* MSAA config state. */
>   	int				ps_iter_samples;
>   	bool				ps_uses_fbfetch;
>   	bool				smoothing_enabled;
>   
> diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
> index e2b0104ce43..d4732dc257f 100644
> --- a/src/gallium/include/pipe/p_defines.h
> +++ b/src/gallium/include/pipe/p_defines.h
> @@ -851,20 +851,21 @@ enum pipe_cap
>      PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS,
>      PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET,
>      PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET,
>      PIPE_CAP_SURFACE_SAMPLE_COUNT,
>      PIPE_CAP_TGSI_ATOMFADD,
>      PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE,
>      PIPE_CAP_RGB_OVERRIDE_DST_ALPHA_BLEND,
>      PIPE_CAP_DEST_SURFACE_SRGB_CONTROL,
>      PIPE_CAP_NIR_COMPACT_ARRAYS,
>      PIPE_CAP_MAX_VARYINGS,
> +   PIPE_CAP_COMPUTE_GRID_INFO_LAST_BLOCK,
>   };
>   
>   /**
>    * Possible bits for PIPE_CAP_CONTEXT_PRIORITY_MASK param, which should
>    * return a bitmask of the supported priorities.  If the driver does not
>    * support prioritized contexts, it can return 0.
>    *
>    * Note that these match __DRI2_RENDER_HAS_CONTEXT_PRIORITY_*
>    */
>   #define PIPE_CONTEXT_PRIORITY_LOW     (1 << 0)
> diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
> index 38052e5fd3d..3a91ddd71b5 100644
> --- a/src/gallium/include/pipe/p_state.h
> +++ b/src/gallium/include/pipe/p_state.h
> @@ -831,20 +831,41 @@ struct pipe_grid_info
>       * clEnqueueNDRangeKernel. Note block[] and grid[] must be padded with
>       * 1 for non-used dimensions.
>       */
>      uint work_dim;
>   
>      /**
>       * Determine the layout of the working block (in thread units) to be used.
>       */
>      uint block[3];
>   
> +   /**
> +    * last_block allows disabling threads at the farthermost grid boundary.
> +    * Full blocks as specified by "block" are launched, but the threads
> +    * outside of "last_block" dimensions are disabled.
> +    *
> +    * If a block touches the grid boundary in the i-th axis, threads with
> +    * THREAD_ID[i] >= last_block[i] are disabled.
> +    *
> +    * If last_block[i] is 0, it has the same behavior as last_block[i] = block[i],
> +    * meaning no effect.
> +    *
> +    * It's equivalent to doing this at the beginning of the compute shader:
> +    *
> +    *   for (i = 0; i < 3; i++) {
> +    *      if (block_id[i] == grid[i] - 1 &&
> +    *          last_block[i] && thread_id[i] >= last_block[i])
> +    *         return;
> +    *   }
> +    */
> +   uint last_block[3];
> +
>      /**
>       * Determine the layout of the grid (in block units) to be used.
>       */
>      uint grid[3];
>   
>      /* Indirect compute parameters resource: If not NULL, block sizes are taken
>       * from this buffer instead, which is laid out as follows:
>       *
>       *  struct {
>       *     uint32_t num_blocks_x;


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