[Mesa-dev] [PATCH 13/18] anv/pipeline: Compile to NIR in compile_graphics

Timothy Arceri tarceri at itsqueeze.com
Thu Jul 26 00:19:01 UTC 2018


On 12/07/18 07:18, Jason Ekstrand wrote:
> This pulls the SPIR-V to NIR step out into common code.
> ---
>   src/intel/vulkan/anv_pipeline.c | 278 +++++++++++++-------------------
>   1 file changed, 116 insertions(+), 162 deletions(-)
> 
> diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
> index bc268b87e55..50d6ab358d2 100644
> --- a/src/intel/vulkan/anv_pipeline.c
> +++ b/src/intel/vulkan/anv_pipeline.c
> @@ -404,6 +404,14 @@ struct anv_pipeline_stage {
>         gl_shader_stage stage;
>         unsigned char sha1[20];
>      } cache_key;
> +
> +   nir_shader *nir;
> +
> +   struct anv_pipeline_binding surface_to_descriptor[256];
> +   struct anv_pipeline_binding sampler_to_descriptor[256];
> +   struct anv_pipeline_bind_map bind_map;
> +
> +   union brw_any_prog_data prog_data;
>   };
>   
>   static void
> @@ -547,58 +555,40 @@ anv_fill_binding_table(struct brw_stage_prog_data *prog_data, unsigned bias)
>   static VkResult
>   anv_pipeline_compile_vs(struct anv_pipeline *pipeline,
>                           struct anv_pipeline_cache *cache,
> -                        const VkGraphicsPipelineCreateInfo *info,
>                           struct anv_pipeline_stage *stage)
>   {
>      const struct brw_compiler *compiler =
>         pipeline->device->instance->physicalDevice.compiler;
>      struct anv_shader_bin *bin = NULL;
>   
> -   ANV_FROM_HANDLE(anv_pipeline_layout, layout, info->layout);
> -
>      if (bin == NULL) {
> -      struct brw_vs_prog_data prog_data = {};
> -      struct anv_pipeline_binding surface_to_descriptor[256];
> -      struct anv_pipeline_binding sampler_to_descriptor[256];
> -
> -      struct anv_pipeline_bind_map map = {
> -         .surface_to_descriptor = surface_to_descriptor,
> -         .sampler_to_descriptor = sampler_to_descriptor
> -      };
> -
>         void *mem_ctx = ralloc_context(NULL);
>   
> -      nir_shader *nir = anv_pipeline_compile(pipeline, mem_ctx, layout, stage,
> -                                             &prog_data.base.base, &map);
> -      if (nir == NULL) {
> -         ralloc_free(mem_ctx);
> -         return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> -      }
> -
> -      anv_fill_binding_table(&prog_data.base.base, 0);
> +      anv_fill_binding_table(&stage->prog_data.vs.base.base, 0);
>   
>         brw_compute_vue_map(&pipeline->device->info,
> -                          &prog_data.base.vue_map,
> -                          nir->info.outputs_written,
> -                          nir->info.separate_shader);
> +                          &stage->prog_data.vs.base.vue_map,
> +                          stage->nir->info.outputs_written,
> +                          stage->nir->info.separate_shader);
>   
>         const unsigned *shader_code =
>            brw_compile_vs(compiler, NULL, mem_ctx, &stage->key.vs,
> -                        &prog_data, nir, -1, NULL);
> +                        &stage->prog_data.vs, stage->nir, -1, NULL);
>         if (shader_code == NULL) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
>         }
>   
> -      unsigned code_size = prog_data.base.base.program_size;
> +      unsigned code_size = stage->prog_data.vs.base.base.program_size;
>         bin = anv_device_upload_kernel(pipeline->device, cache,
>                                        &stage->cache_key,
>                                        sizeof(stage->cache_key),
>                                        shader_code, code_size,
> -                                     nir->constant_data,
> -                                     nir->constant_data_size,
> -                                     &prog_data.base.base, sizeof(prog_data),
> -                                     &map);
> +                                     stage->nir->constant_data,
> +                                     stage->nir->constant_data_size,
> +                                     &stage->prog_data.base,
> +                                     sizeof(stage->prog_data.vs),
> +                                     &stage->bind_map);
>         if (!bin) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> @@ -654,7 +644,6 @@ merge_tess_info(struct shader_info *tes_info,
>   static VkResult
>   anv_pipeline_compile_tcs_tes(struct anv_pipeline *pipeline,
>                                struct anv_pipeline_cache *cache,
> -                             const VkGraphicsPipelineCreateInfo *info,
>                                struct anv_pipeline_stage *tcs_stage,
>                                struct anv_pipeline_stage *tes_stage)
>   {
> @@ -664,85 +653,60 @@ anv_pipeline_compile_tcs_tes(struct anv_pipeline *pipeline,
>      struct anv_shader_bin *tcs_bin = NULL;
>      struct anv_shader_bin *tes_bin = NULL;
>   
> -   ANV_FROM_HANDLE(anv_pipeline_layout, layout, info->layout);
> -
>      if (tcs_bin == NULL || tes_bin == NULL) {
> -      struct brw_tcs_prog_data tcs_prog_data = {};
> -      struct brw_tes_prog_data tes_prog_data = {};
> -      struct anv_pipeline_binding tcs_surface_to_descriptor[256];
> -      struct anv_pipeline_binding tcs_sampler_to_descriptor[256];
> -      struct anv_pipeline_binding tes_surface_to_descriptor[256];
> -      struct anv_pipeline_binding tes_sampler_to_descriptor[256];
> -
> -      struct anv_pipeline_bind_map tcs_map = {
> -         .surface_to_descriptor = tcs_surface_to_descriptor,
> -         .sampler_to_descriptor = tcs_sampler_to_descriptor
> -      };
> -      struct anv_pipeline_bind_map tes_map = {
> -         .surface_to_descriptor = tes_surface_to_descriptor,
> -         .sampler_to_descriptor = tes_sampler_to_descriptor
> -      };
> -
>         void *mem_ctx = ralloc_context(NULL);
>   
> -      nir_shader *tcs_nir =
> -         anv_pipeline_compile(pipeline, mem_ctx, layout, tcs_stage,
> -                              &tcs_prog_data.base.base, &tcs_map);
> -      nir_shader *tes_nir =
> -         anv_pipeline_compile(pipeline, mem_ctx, layout, tes_stage,
> -                              &tes_prog_data.base.base, &tes_map);
> -      if (tcs_nir == NULL || tes_nir == NULL) {
> -         ralloc_free(mem_ctx);
> -         return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> -      }
> -
> -      nir_lower_tes_patch_vertices(tes_nir,
> -                                   tcs_nir->info.tess.tcs_vertices_out);
> +      nir_lower_tes_patch_vertices(tes_stage->nir,
> +                                   tcs_stage->nir->info.tess.tcs_vertices_out);
>   
>         /* Copy TCS info into the TES info */
> -      merge_tess_info(&tes_nir->info, &tcs_nir->info);
> +      merge_tess_info(&tes_stage->nir->info, &tcs_stage->nir->info);
>   
> -      anv_fill_binding_table(&tcs_prog_data.base.base, 0);
> -      anv_fill_binding_table(&tes_prog_data.base.base, 0);
> +      anv_fill_binding_table(&tcs_stage->prog_data.tcs.base.base, 0);
> +      anv_fill_binding_table(&tes_stage->prog_data.tes.base.base, 0);
>   
>         /* Whacking the key after cache lookup is a bit sketchy, but all of
>          * this comes from the SPIR-V, which is part of the hash used for the
>          * pipeline cache.  So it should be safe.
>          */
> -      tcs_stage->key.tcs.tes_primitive_mode = tes_nir->info.tess.primitive_mode;
> -      tcs_stage->key.tcs.outputs_written = tcs_nir->info.outputs_written;
> +      tcs_stage->key.tcs.tes_primitive_mode =
> +         tes_stage->nir->info.tess.primitive_mode;
> +      tcs_stage->key.tcs.outputs_written =
> +         tcs_stage->nir->info.outputs_written;
>         tcs_stage->key.tcs.patch_outputs_written =
> -         tcs_nir->info.patch_outputs_written;
> +         tcs_stage->nir->info.patch_outputs_written;
>         tcs_stage->key.tcs.quads_workaround =
>            devinfo->gen < 9 &&
> -         tes_nir->info.tess.primitive_mode == 7 /* GL_QUADS */ &&
> -         tes_nir->info.tess.spacing == TESS_SPACING_EQUAL;
> +         tes_stage->nir->info.tess.primitive_mode == 7 /* GL_QUADS */ &&
> +         tes_stage->nir->info.tess.spacing == TESS_SPACING_EQUAL;
>   
> -      tes_stage->key.tes.inputs_read = tcs_nir->info.outputs_written;
> +      tes_stage->key.tes.inputs_read =
> +         tcs_stage->nir->info.outputs_written;
>         tes_stage->key.tes.patch_inputs_read =
> -         tcs_nir->info.patch_outputs_written;
> +         tcs_stage->nir->info.patch_outputs_written;
>   
>         const int shader_time_index = -1;
>         const unsigned *shader_code;
>   
>         shader_code =
>            brw_compile_tcs(compiler, NULL, mem_ctx, &tcs_stage->key.tcs,
> -                         &tcs_prog_data, tcs_nir, shader_time_index, NULL);
> +                         &tcs_stage->prog_data.tcs, tcs_stage->nir,
> +                         shader_time_index, NULL);
>         if (shader_code == NULL) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
>         }
>   
> -      unsigned code_size = tcs_prog_data.base.base.program_size;
> +      unsigned code_size = tcs_stage->prog_data.base.program_size;
>         tcs_bin = anv_device_upload_kernel(pipeline->device, cache,
>                                            &tcs_stage->cache_key,
>                                            sizeof(tcs_stage->cache_key),
>                                            shader_code, code_size,
> -                                         tcs_nir->constant_data,
> -                                         tcs_nir->constant_data_size,
> -                                         &tcs_prog_data.base.base,
> -                                         sizeof(tcs_prog_data),
> -                                         &tcs_map);
> +                                         tcs_stage->nir->constant_data,
> +                                         tcs_stage->nir->constant_data_size,
> +                                         &tcs_stage->prog_data.base,
> +                                         sizeof(tcs_stage->prog_data.tcs),
> +                                         &tcs_stage->bind_map);
>         if (!tcs_bin) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> @@ -750,23 +714,24 @@ anv_pipeline_compile_tcs_tes(struct anv_pipeline *pipeline,
>   
>         shader_code =
>            brw_compile_tes(compiler, NULL, mem_ctx, &tes_stage->key.tes,
> -                         &tcs_prog_data.base.vue_map, &tes_prog_data, tes_nir,
> +                         &tcs_stage->prog_data.tcs.base.vue_map,
> +                         &tes_stage->prog_data.tes, tes_stage->nir,
>                            NULL, shader_time_index, NULL);
>         if (shader_code == NULL) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
>         }
>   
> -      code_size = tes_prog_data.base.base.program_size;
> +      code_size = tes_stage->prog_data.base.program_size;
>         tes_bin = anv_device_upload_kernel(pipeline->device, cache,
>                                            &tes_stage->cache_key,
>                                            sizeof(tes_stage->cache_key),
>                                            shader_code, code_size,
> -                                         tes_nir->constant_data,
> -                                         tes_nir->constant_data_size,
> -                                         &tes_prog_data.base.base,
> -                                         sizeof(tes_prog_data),
> -                                         &tes_map);
> +                                         tes_stage->nir->constant_data,
> +                                         tes_stage->nir->constant_data_size,
> +                                         &tes_stage->prog_data.base,
> +                                         sizeof(tes_stage->prog_data.tes),
> +                                         &tes_stage->bind_map);
>         if (!tes_bin) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> @@ -784,59 +749,42 @@ anv_pipeline_compile_tcs_tes(struct anv_pipeline *pipeline,
>   static VkResult
>   anv_pipeline_compile_gs(struct anv_pipeline *pipeline,
>                           struct anv_pipeline_cache *cache,
> -                        const VkGraphicsPipelineCreateInfo *info,
>                           struct anv_pipeline_stage *stage)
>   {
>      const struct brw_compiler *compiler =
>         pipeline->device->instance->physicalDevice.compiler;
>      struct anv_shader_bin *bin = NULL;
>   
> -   ANV_FROM_HANDLE(anv_pipeline_layout, layout, info->layout);
> -
>      if (bin == NULL) {
> -      struct brw_gs_prog_data prog_data = {};
> -      struct anv_pipeline_binding surface_to_descriptor[256];
> -      struct anv_pipeline_binding sampler_to_descriptor[256];
> -
> -      struct anv_pipeline_bind_map map = {
> -         .surface_to_descriptor = surface_to_descriptor,
> -         .sampler_to_descriptor = sampler_to_descriptor
> -      };
> -
>         void *mem_ctx = ralloc_context(NULL);
>   
> -      nir_shader *nir = anv_pipeline_compile(pipeline, mem_ctx, layout, stage,
> -                                             &prog_data.base.base, &map);
> -      if (nir == NULL) {
> -         ralloc_free(mem_ctx);
> -         return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> -      }
> -
> -      anv_fill_binding_table(&prog_data.base.base, 0);
> +      anv_fill_binding_table(&stage->prog_data.gs.base.base, 0);
>   
>         brw_compute_vue_map(&pipeline->device->info,
> -                          &prog_data.base.vue_map,
> -                          nir->info.outputs_written,
> -                          nir->info.separate_shader);
> +                          &stage->prog_data.gs.base.vue_map,
> +                          stage->nir->info.outputs_written,
> +                          stage->nir->info.separate_shader);
>   
>         const unsigned *shader_code =
>            brw_compile_gs(compiler, NULL, mem_ctx, &stage->key.gs,
> -                        &prog_data, nir, NULL, -1, NULL);
> +                        &stage->prog_data.gs, stage->nir,
> +                        NULL, -1, NULL);
>         if (shader_code == NULL) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
>         }
>   
>         /* TODO: SIMD8 GS */
> -      const unsigned code_size = prog_data.base.base.program_size;
> +      const unsigned code_size = stage->prog_data.base.program_size;
>         bin = anv_device_upload_kernel(pipeline->device, cache,
>                                        &stage->cache_key,
>                                        sizeof(stage->cache_key),
>                                        shader_code, code_size,
> -                                     nir->constant_data,
> -                                     nir->constant_data_size,
> -                                     &prog_data.base.base, sizeof(prog_data),
> -                                     &map);
> +                                     stage->nir->constant_data,
> +                                     stage->nir->constant_data_size,
> +                                     &stage->prog_data.base,
> +                                     sizeof(stage->prog_data.gs),
> +                                     &stage->bind_map);
>         if (!bin) {
>            ralloc_free(mem_ctx);
>            return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> @@ -853,7 +801,6 @@ anv_pipeline_compile_gs(struct anv_pipeline *pipeline,
>   static VkResult
>   anv_pipeline_compile_fs(struct anv_pipeline *pipeline,
>                           struct anv_pipeline_cache *cache,
> -                        const VkGraphicsPipelineCreateInfo *info,
>                           struct anv_pipeline_stage *stage)
>   {
>      const struct brw_compiler *compiler =
> @@ -867,38 +814,20 @@ anv_pipeline_compile_fs(struct anv_pipeline *pipeline,
>         &anv_pipeline_get_last_vue_prog_data(pipeline)->vue_map;
>      stage->key.wm.input_slots_valid = vue_map->slots_valid;
>   
> -   ANV_FROM_HANDLE(anv_pipeline_layout, layout, info->layout);
> -
>      if (bin == NULL) {
> -      struct brw_wm_prog_data prog_data = {};
> -      struct anv_pipeline_binding surface_to_descriptor[256];
> -      struct anv_pipeline_binding sampler_to_descriptor[256];
> -
> -      struct anv_pipeline_bind_map map = {
> -         .surface_to_descriptor = surface_to_descriptor + 8,
> -         .sampler_to_descriptor = sampler_to_descriptor
> -      };
> -
>         void *mem_ctx = ralloc_context(NULL);
>   
> -      nir_shader *nir = anv_pipeline_compile(pipeline, mem_ctx, layout, stage,
> -                                             &prog_data.base, &map);
> -      if (nir == NULL) {
> -         ralloc_free(mem_ctx);
> -         return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
> -      }
> -
>         unsigned num_rts = 0;
>         const int max_rt = FRAG_RESULT_DATA7 - FRAG_RESULT_DATA0 + 1;
>         struct anv_pipeline_binding rt_bindings[max_rt];
> -      nir_function_impl *impl = nir_shader_get_entrypoint(nir);
> +      nir_function_impl *impl = nir_shader_get_entrypoint(stage->nir);
>         int rt_to_bindings[max_rt];
>         memset(rt_to_bindings, -1, sizeof(rt_to_bindings));
>         bool rt_used[max_rt];
>         memset(rt_used, 0, sizeof(rt_used));
>   
>         /* Flag used render targets */
> -      nir_foreach_variable_safe(var, &nir->outputs) {
> +      nir_foreach_variable_safe(var, &stage->nir->outputs) {
>            if (var->data.location < FRAG_RESULT_DATA0)
>               continue;
>   
> @@ -930,7 +859,7 @@ anv_pipeline_compile_fs(struct anv_pipeline *pipeline,
>         }
>   
>         bool deleted_output = false;
> -      nir_foreach_variable_safe(var, &nir->outputs) {
> +      nir_foreach_variable_safe(var, &stage->nir->outputs) {
>            if (var->data.location < FRAG_RESULT_DATA0)
>               continue;
>   
> @@ -951,7 +880,7 @@ anv_pipeline_compile_fs(struct anv_pipeline *pipeline,
>         }
>   
>         if (deleted_output)
> -         nir_fixup_deref_modes(nir);
> +         nir_fixup_deref_modes(stage->nir);
>   
>         if (num_rts == 0) {
>            /* If we have no render targets, we need a null render target */
> @@ -970,31 +899,36 @@ anv_pipeline_compile_fs(struct anv_pipeline *pipeline,
>         stage->key.wm.color_outputs_valid = (1 << num_rts) - 1;
>   
>         assert(num_rts <= max_rt);
> -      map.surface_to_descriptor -= num_rts;
> -      map.surface_count += num_rts;
> -      assert(map.surface_count <= 256);
> -      memcpy(map.surface_to_descriptor, rt_bindings,
> -             num_rts * sizeof(*rt_bindings));
> +      assert(stage->bind_map.surface_count + num_rts <= 256);
> +      memmove(stage->bind_map.surface_to_descriptor + num_rts,
> +              stage->bind_map.surface_to_descriptor,
> +              stage->bind_map.surface_count *
> +              sizeof(*stage->bind_map.surface_to_descriptor));
> +      typed_memcpy(stage->bind_map.surface_to_descriptor,
> +                   rt_bindings, num_rts);
> +      stage->bind_map.surface_count += num_rts;
>   

I'm not following the above change. Can you provide a little more 
context as to whats going on here?


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