From: Kenneth Graunke Date: Fri, 28 Sep 2018 09:21:47 +0000 (+0200) Subject: gallium: Add the ability to query a single pipeline statistics counter X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d644698b443b395dc878efdaf4201647b0ce69d6;p=mesa.git gallium: Add the ability to query a single pipeline statistics counter Gallium historically has treated pipeline statistics queries as a single query, PIPE_QUERY_PIPELINE_STATISTICS, which returns a block of 11 values. This was originally patterned after the D3D1x API. Much later, Brian introduced an OpenGL extension that exposed these counters - but it exposes 11 separate queries, each of which returns a single value. Today, st/mesa simply queries all 11 values, and returns a single value. While pipeline statistics counters aren't typically performance critical, this is still not a great fit. A D3D1x->GL translator might request all 11 counters by creating 11 separate GL queries...which Gallium would map to reads of all 11 values each time, resulting in a total 121 counter reads. That's not ideal. This patch adds a new cap, PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE, and corresponding query type PIPE_QUERY_PIPELINE_STATISTICS_SINGLE. When calling create_query(), q->index should be set to one of the PIPE_STAT_QUERY_* enums to select a counter. Unlike the block query, this returns the value in pipe_query_result::u64 (as it's a single value) instead of the pipe_query_data_pipeline_statistics group. We update st/mesa to expose ARB_pipeline_statistics_query if either capability is set, preferring the new SINGLE variant when available. Thanks to Roland, Ilia, and Marek for helping me sort this out. Reviewed-by: Marek Olšák Reviewed-by: Tapani Pälli --- diff --git a/src/gallium/auxiliary/util/u_screen.c b/src/gallium/auxiliary/util/u_screen.c index f1e8eda701f..66dfa852540 100644 --- a/src/gallium/auxiliary/util/u_screen.c +++ b/src/gallium/auxiliary/util/u_screen.c @@ -145,6 +145,7 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen, return 1; case PIPE_CAP_QUERY_PIPELINE_STATISTICS: + case PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE: case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK: return 0; diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst index 20d0df79312..f89d9e1005e 100644 --- a/src/gallium/docs/source/context.rst +++ b/src/gallium/docs/source/context.rst @@ -491,6 +491,11 @@ Number of tessellation evaluation shader threads launched. If a shader type is not supported by the device/driver, the corresponding values should be set to 0. +``PIPE_QUERY_PIPELINE_STATISTICS_SINGLE`` returns a single counter from +the ``PIPE_QUERY_PIPELINE_STATISTICS`` group. The specific counter must +be selected when calling ``create_query`` by passing one of the +``PIPE_STAT_QUERY`` enums as the query's ``index``. + Gallium does not guarantee the availability of any query types; one must always check the capabilities of the :ref:`Screen` first. diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index 4480b54eb2f..d76fadadfdf 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -563,6 +563,7 @@ enum pipe_query_type { PIPE_QUERY_SO_OVERFLOW_ANY_PREDICATE, PIPE_QUERY_GPU_FINISHED, PIPE_QUERY_PIPELINE_STATISTICS, + PIPE_QUERY_PIPELINE_STATISTICS_SINGLE, PIPE_QUERY_TYPES, /* start of driver queries, see pipe_screen::get_driver_query_info */ PIPE_QUERY_DRIVER_SPECIFIC = 256, @@ -851,6 +852,7 @@ enum pipe_cap PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET, PIPE_CAP_SURFACE_SAMPLE_COUNT, PIPE_CAP_TGSI_ATOMFADD, + PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE, }; /** diff --git a/src/mesa/state_tracker/st_cb_queryobj.c b/src/mesa/state_tracker/st_cb_queryobj.c index 9c551da005f..abb126547c9 100644 --- a/src/mesa/state_tracker/st_cb_queryobj.c +++ b/src/mesa/state_tracker/st_cb_queryobj.c @@ -88,6 +88,44 @@ st_DeleteQuery(struct gl_context *ctx, struct gl_query_object *q) free(stq); } +static int +target_to_index(const struct st_context *st, const struct gl_query_object *q) +{ + if (q->Target == GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN || + q->Target == GL_TRANSFORM_FEEDBACK_STREAM_OVERFLOW_ARB) + return q->Stream; + + if (st->has_single_pipe_stat) { + switch (q->Target) { + case GL_VERTICES_SUBMITTED_ARB: + return PIPE_STAT_QUERY_IA_VERTICES; + case GL_PRIMITIVES_SUBMITTED_ARB: + return PIPE_STAT_QUERY_IA_PRIMITIVES; + case GL_VERTEX_SHADER_INVOCATIONS_ARB: + return PIPE_STAT_QUERY_VS_INVOCATIONS; + case GL_GEOMETRY_SHADER_INVOCATIONS: + return PIPE_STAT_QUERY_GS_INVOCATIONS; + case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB: + return PIPE_STAT_QUERY_GS_PRIMITIVES; + case GL_CLIPPING_INPUT_PRIMITIVES_ARB: + return PIPE_STAT_QUERY_C_INVOCATIONS; + case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB: + return PIPE_STAT_QUERY_C_PRIMITIVES; + case GL_FRAGMENT_SHADER_INVOCATIONS_ARB: + return PIPE_STAT_QUERY_PS_INVOCATIONS; + case GL_TESS_CONTROL_SHADER_PATCHES_ARB: + return PIPE_STAT_QUERY_HS_INVOCATIONS; + case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB: + return PIPE_STAT_QUERY_DS_INVOCATIONS; + case GL_COMPUTE_SHADER_INVOCATIONS_ARB: + return PIPE_STAT_QUERY_CS_INVOCATIONS; + default: + break; + } + } + + return 0; +} static void st_BeginQuery(struct gl_context *ctx, struct gl_query_object *q) @@ -140,7 +178,8 @@ st_BeginQuery(struct gl_context *ctx, struct gl_query_object *q) case GL_COMPUTE_SHADER_INVOCATIONS_ARB: case GL_CLIPPING_INPUT_PRIMITIVES_ARB: case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB: - type = PIPE_QUERY_PIPELINE_STATISTICS; + type = st->has_single_pipe_stat ? PIPE_QUERY_PIPELINE_STATISTICS_SINGLE + : PIPE_QUERY_PIPELINE_STATISTICS; break; default: assert(0 && "unexpected query target in st_BeginQuery()"); @@ -164,7 +203,7 @@ st_BeginQuery(struct gl_context *ctx, struct gl_query_object *q) ret = pipe->end_query(pipe, stq->pq_begin); } else { if (!stq->pq) { - stq->pq = pipe->create_query(pipe, type, q->Stream); + stq->pq = pipe->create_query(pipe, type, target_to_index(st, q)); stq->type = type; } if (stq->pq) diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c index 354876746f4..30380446041 100644 --- a/src/mesa/state_tracker/st_context.c +++ b/src/mesa/state_tracker/st_context.c @@ -462,6 +462,8 @@ st_create_context_priv(struct gl_context *ctx, struct pipe_context *pipe, screen->get_param(screen, PIPE_CAP_TGSI_PACK_HALF_FLOAT); st->has_multi_draw_indirect = screen->get_param(screen, PIPE_CAP_MULTI_DRAW_INDIRECT); + st->has_single_pipe_stat = + screen->get_param(screen, PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE); st->has_hw_atomics = screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT, diff --git a/src/mesa/state_tracker/st_context.h b/src/mesa/state_tracker/st_context.h index b31e719708e..8b736ebff75 100644 --- a/src/mesa/state_tracker/st_context.h +++ b/src/mesa/state_tracker/st_context.h @@ -127,6 +127,7 @@ struct st_context boolean has_shareable_shaders; boolean has_half_float_packing; boolean has_multi_draw_indirect; + boolean has_single_pipe_stat; boolean can_bind_const_buffer_as_vertex; /** diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index 931a2643bfa..46280792603 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -704,6 +704,7 @@ void st_init_extensions(struct pipe_screen *screen, { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY }, { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY }, { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS }, + { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE }, { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE }, { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP }, { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },