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-rw-r--r--src/intel/vulkan/anv_pipeline.c193
1 files changed, 191 insertions, 2 deletions
diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index ec760fcb1e3..fdec3ce6227 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -504,6 +504,188 @@ anv_pipeline_compile_vs(struct anv_pipeline *pipeline,
return VK_SUCCESS;
}
+static void
+merge_tess_info(struct shader_info *tes_info,
+ const struct shader_info *tcs_info)
+{
+ /* The Vulkan 1.0.38 spec, section 21.1 Tessellator says:
+ *
+ * "PointMode. Controls generation of points rather than triangles
+ * or lines. This functionality defaults to disabled, and is
+ * enabled if either shader stage includes the execution mode.
+ *
+ * and about Triangles, Quads, IsoLines, VertexOrderCw, VertexOrderCcw,
+ * PointMode, SpacingEqual, SpacingFractionalEven, SpacingFractionalOdd,
+ * and OutputVertices, it says:
+ *
+ * "One mode must be set in at least one of the tessellation
+ * shader stages."
+ *
+ * So, the fields can be set in either the TCS or TES, but they must
+ * agree if set in both. Our backend looks at TES, so bitwise-or in
+ * the values from the TCS.
+ */
+ assert(tcs_info->tess.tcs_vertices_out == 0 ||
+ tes_info->tess.tcs_vertices_out == 0 ||
+ tcs_info->tess.tcs_vertices_out == tes_info->tess.tcs_vertices_out);
+ tes_info->tess.tcs_vertices_out |= tcs_info->tess.tcs_vertices_out;
+
+ assert(tcs_info->tess.spacing == TESS_SPACING_UNSPECIFIED ||
+ tes_info->tess.spacing == TESS_SPACING_UNSPECIFIED ||
+ tcs_info->tess.spacing == tes_info->tess.spacing);
+ tes_info->tess.spacing |= tcs_info->tess.spacing;
+
+ tes_info->tess.ccw |= tcs_info->tess.ccw;
+ tes_info->tess.point_mode |= tcs_info->tess.point_mode;
+}
+
+static VkResult
+anv_pipeline_compile_tcs_tes(struct anv_pipeline *pipeline,
+ struct anv_pipeline_cache *cache,
+ const VkGraphicsPipelineCreateInfo *info,
+ struct anv_shader_module *tcs_module,
+ const char *tcs_entrypoint,
+ const VkSpecializationInfo *tcs_spec_info,
+ struct anv_shader_module *tes_module,
+ const char *tes_entrypoint,
+ const VkSpecializationInfo *tes_spec_info)
+{
+ const struct gen_device_info *devinfo = &pipeline->device->info;
+ const struct brw_compiler *compiler =
+ pipeline->device->instance->physicalDevice.compiler;
+ struct anv_pipeline_bind_map tcs_map;
+ struct anv_pipeline_bind_map tes_map;
+ struct brw_tcs_prog_key tcs_key = { 0, };
+ struct brw_tes_prog_key tes_key = { 0, };
+ struct anv_shader_bin *tcs_bin = NULL;
+ struct anv_shader_bin *tes_bin = NULL;
+ unsigned char tcs_sha1[40];
+ unsigned char tes_sha1[40];
+
+ populate_sampler_prog_key(&pipeline->device->info, &tcs_key.tex);
+ populate_sampler_prog_key(&pipeline->device->info, &tes_key.tex);
+ tcs_key.input_vertices = info->pTessellationState->patchControlPoints;
+
+ if (cache) {
+ anv_hash_shader(tcs_sha1, &tcs_key, sizeof(tcs_key), tcs_module,
+ tcs_entrypoint, pipeline->layout, tcs_spec_info);
+ anv_hash_shader(tes_sha1, &tes_key, sizeof(tes_key), tes_module,
+ tes_entrypoint, pipeline->layout, tes_spec_info);
+ memcpy(&tcs_sha1[20], tes_sha1, 20);
+ memcpy(&tes_sha1[20], tcs_sha1, 20);
+ tcs_bin = anv_pipeline_cache_search(cache, tcs_sha1, sizeof(tcs_sha1));
+ tes_bin = anv_pipeline_cache_search(cache, tes_sha1, sizeof(tes_sha1));
+ }
+
+ if (tcs_bin == NULL || tes_bin == NULL) {
+ struct brw_tcs_prog_data tcs_prog_data = { 0, };
+ struct brw_tes_prog_data tes_prog_data = { 0, };
+ 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];
+
+ tcs_map = (struct anv_pipeline_bind_map) {
+ .surface_to_descriptor = tcs_surface_to_descriptor,
+ .sampler_to_descriptor = tcs_sampler_to_descriptor
+ };
+ tes_map = (struct anv_pipeline_bind_map) {
+ .surface_to_descriptor = tes_surface_to_descriptor,
+ .sampler_to_descriptor = tes_sampler_to_descriptor
+ };
+
+ nir_shader *tcs_nir =
+ anv_pipeline_compile(pipeline, tcs_module, tcs_entrypoint,
+ MESA_SHADER_TESS_CTRL, tcs_spec_info,
+ &tcs_prog_data.base.base, &tcs_map);
+ nir_shader *tes_nir =
+ anv_pipeline_compile(pipeline, tes_module, tes_entrypoint,
+ MESA_SHADER_TESS_EVAL, tes_spec_info,
+ &tes_prog_data.base.base, &tes_map);
+ if (tcs_nir == NULL || tes_nir == NULL)
+ return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+
+ nir_lower_tes_patch_vertices(tes_nir,
+ tcs_nir->info->tess.tcs_vertices_out);
+
+ /* Copy TCS info into the TES info */
+ merge_tess_info(tes_nir->info, tcs_nir->info);
+
+ anv_fill_binding_table(&tcs_prog_data.base.base, 0);
+ anv_fill_binding_table(&tes_prog_data.base.base, 0);
+
+ void *mem_ctx = ralloc_context(NULL);
+
+ ralloc_steal(mem_ctx, tcs_nir);
+ ralloc_steal(mem_ctx, tes_nir);
+
+ /* 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_key.tes_primitive_mode = tes_nir->info->tess.primitive_mode;
+ tcs_key.outputs_written = tcs_nir->info->outputs_written;
+ tcs_key.patch_outputs_written = tcs_nir->info->patch_outputs_written;
+ tcs_key.quads_workaround =
+ devinfo->gen < 9 &&
+ tes_nir->info->tess.primitive_mode == 7 /* GL_QUADS */ &&
+ tes_nir->info->tess.spacing == TESS_SPACING_EQUAL;
+
+ tes_key.inputs_read = tcs_key.outputs_written;
+ tes_key.patch_inputs_read = tcs_key.patch_outputs_written;
+
+ unsigned code_size;
+ const int shader_time_index = -1;
+ const unsigned *shader_code;
+
+ shader_code =
+ brw_compile_tcs(compiler, NULL, mem_ctx, &tcs_key, &tcs_prog_data,
+ tcs_nir, shader_time_index, &code_size, NULL);
+ if (shader_code == NULL) {
+ ralloc_free(mem_ctx);
+ return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+ }
+
+ tcs_bin = anv_pipeline_upload_kernel(pipeline, cache,
+ tcs_sha1, sizeof(tcs_sha1),
+ shader_code, code_size,
+ &tcs_prog_data.base.base,
+ sizeof(tcs_prog_data),
+ &tcs_map);
+ if (!tcs_bin) {
+ ralloc_free(mem_ctx);
+ return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+ }
+
+ shader_code =
+ brw_compile_tes(compiler, NULL, mem_ctx, &tes_key,
+ &tcs_prog_data.base.vue_map, &tes_prog_data, tes_nir,
+ NULL, shader_time_index, &code_size, NULL);
+ if (shader_code == NULL) {
+ ralloc_free(mem_ctx);
+ return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+ }
+
+ tes_bin = anv_pipeline_upload_kernel(pipeline, cache,
+ tes_sha1, sizeof(tes_sha1),
+ shader_code, code_size,
+ &tes_prog_data.base.base,
+ sizeof(tes_prog_data),
+ &tes_map);
+ if (!tes_bin) {
+ ralloc_free(mem_ctx);
+ return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
+ }
+
+ ralloc_free(mem_ctx);
+ }
+
+ anv_pipeline_add_compiled_stage(pipeline, MESA_SHADER_TESS_CTRL, tcs_bin);
+ anv_pipeline_add_compiled_stage(pipeline, MESA_SHADER_TESS_EVAL, tes_bin);
+
+ return VK_SUCCESS;
+}
+
static VkResult
anv_pipeline_compile_gs(struct anv_pipeline *pipeline,
struct anv_pipeline_cache *cache,
@@ -1037,8 +1219,15 @@ anv_pipeline_init(struct anv_pipeline *pipeline,
goto compile_fail;
}
- if (modules[MESA_SHADER_TESS_CTRL] || modules[MESA_SHADER_TESS_EVAL])
- anv_finishme("no tessellation support");
+ if (modules[MESA_SHADER_TESS_EVAL]) {
+ anv_pipeline_compile_tcs_tes(pipeline, cache, pCreateInfo,
+ modules[MESA_SHADER_TESS_CTRL],
+ pStages[MESA_SHADER_TESS_CTRL]->pName,
+ pStages[MESA_SHADER_TESS_CTRL]->pSpecializationInfo,
+ modules[MESA_SHADER_TESS_EVAL],
+ pStages[MESA_SHADER_TESS_EVAL]->pName,
+ pStages[MESA_SHADER_TESS_EVAL]->pSpecializationInfo);
+ }
if (modules[MESA_SHADER_GEOMETRY]) {
result = anv_pipeline_compile_gs(pipeline, cache, pCreateInfo,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 19:14:18 +0000