[Mesa-dev] [PATCH] radv/gfx9: add 3d sampler image->buffer copy shader.

Dave Airlie airlied at gmail.com
Tue Dec 19 04:05:12 UTC 2017


From: Dave Airlie <airlied at redhat.com>

On GFX9 we must access 3D textures with 3D samplers AFAICS.

This fixes:
dEQP-VK.api.image_clearing.core.clear_color_image.3d.single_layer

on GFX9 for me.

Fixes: e38685cc62e 'Revert "radv: disable support for VEGA for now."'
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/amd/vulkan/radv_meta_bufimage.c | 68 +++++++++++++++++++++++++++++++++----
 src/amd/vulkan/radv_private.h       |  1 +
 2 files changed, 62 insertions(+), 7 deletions(-)

diff --git a/src/amd/vulkan/radv_meta_bufimage.c b/src/amd/vulkan/radv_meta_bufimage.c
index dfd99aa75f..e821898c75 100644
--- a/src/amd/vulkan/radv_meta_bufimage.c
+++ b/src/amd/vulkan/radv_meta_bufimage.c
@@ -29,11 +29,15 @@
  * Compute queue: implementation also of buffer->image, image->image, and image clear.
  */
 
+/* GFX9 needs to use a 3D sampler to access 3D resources, so the shader has the options
+ * for that.
+ */
 static nir_shader *
-build_nir_itob_compute_shader(struct radv_device *dev)
+build_nir_itob_compute_shader(struct radv_device *dev, bool is_3d)
 {
 	nir_builder b;
-	const struct glsl_type *sampler_type = glsl_sampler_type(GLSL_SAMPLER_DIM_2D,
+	enum glsl_sampler_dim dim = is_3d ? GLSL_SAMPLER_DIM_3D : GLSL_SAMPLER_DIM_2D;
+	const struct glsl_type *sampler_type = glsl_sampler_type(dim,
 								 false,
 								 false,
 								 GLSL_TYPE_FLOAT);
@@ -42,7 +46,7 @@ build_nir_itob_compute_shader(struct radv_device *dev)
 							     false,
 							     GLSL_TYPE_FLOAT);
 	nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_COMPUTE, NULL);
-	b.shader->info.name = ralloc_strdup(b.shader, "meta_itob_cs");
+	b.shader->info.name = ralloc_strdup(b.shader, is_3d ? "meta_itob_cs_3d" : "meta_itob_cs");
 	b.shader->info.cs.local_size[0] = 16;
 	b.shader->info.cs.local_size[1] = 16;
 	b.shader->info.cs.local_size[2] = 1;
@@ -85,16 +89,30 @@ build_nir_itob_compute_shader(struct radv_device *dev)
 
 	nir_ssa_def *img_coord = nir_iadd(&b, global_id, &offset->dest.ssa);
 
+	nir_ssa_def *img_coord_3d = NULL;
+
+	if (is_3d) {
+		nir_ssa_def *chans[3];
+
+		chans[0] = nir_channel(&b, img_coord, 0);
+		chans[1] = nir_channel(&b, img_coord, 1);
+		chans[2] = nir_imm_int(&b, 0);
+		img_coord_3d = nir_vec(&b, chans, 3);
+	}
+
 	nir_tex_instr *tex = nir_tex_instr_create(b.shader, 2);
 	tex->sampler_dim = GLSL_SAMPLER_DIM_2D;
 	tex->op = nir_texop_txf;
 	tex->src[0].src_type = nir_tex_src_coord;
-	tex->src[0].src = nir_src_for_ssa(nir_channels(&b, img_coord, 0x3));
+	if (is_3d)
+		tex->src[0].src = nir_src_for_ssa(nir_channels(&b, img_coord_3d, 0x7));
+	else
+		tex->src[0].src = nir_src_for_ssa(nir_channels(&b, img_coord, 0x3));
 	tex->src[1].src_type = nir_tex_src_lod;
 	tex->src[1].src = nir_src_for_ssa(nir_imm_int(&b, 0));
 	tex->dest_type = nir_type_float;
 	tex->is_array = false;
-	tex->coord_components = 2;
+	tex->coord_components = is_3d ? 3 : 2;
 	tex->texture = nir_deref_var_create(tex, input_img);
 	tex->sampler = NULL;
 
@@ -126,8 +144,11 @@ radv_device_init_meta_itob_state(struct radv_device *device)
 {
 	VkResult result;
 	struct radv_shader_module cs = { .nir = NULL };
+	struct radv_shader_module cs_3d = { .nir = NULL };
 
-	cs.nir = build_nir_itob_compute_shader(device);
+	cs.nir = build_nir_itob_compute_shader(device, false);
+	if (device->physical_device->rad_info.chip_class >= GFX9)
+		cs_3d.nir = build_nir_itob_compute_shader(device, true);
 
 	/*
 	 * two descriptors one for the image being sampled
@@ -202,10 +223,36 @@ radv_device_init_meta_itob_state(struct radv_device *device)
 	if (result != VK_SUCCESS)
 		goto fail;
 
+	if (device->physical_device->rad_info.chip_class >= GFX9) {
+		VkPipelineShaderStageCreateInfo pipeline_shader_stage_3d = {
+			.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
+			.stage = VK_SHADER_STAGE_COMPUTE_BIT,
+			.module = radv_shader_module_to_handle(&cs_3d),
+			.pName = "main",
+			.pSpecializationInfo = NULL,
+		};
+
+		VkComputePipelineCreateInfo vk_pipeline_info_3d = {
+			.sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO,
+			.stage = pipeline_shader_stage_3d,
+			.flags = 0,
+			.layout = device->meta_state.itob.img_p_layout,
+		};
+
+		result = radv_CreateComputePipelines(radv_device_to_handle(device),
+						     radv_pipeline_cache_to_handle(&device->meta_state.cache),
+						     1, &vk_pipeline_info_3d, NULL,
+						     &device->meta_state.itob.pipeline_3d);
+		if (result != VK_SUCCESS)
+			goto fail;
+		ralloc_free(cs_3d.nir);
+	}
 	ralloc_free(cs.nir);
+
 	return VK_SUCCESS;
 fail:
 	ralloc_free(cs.nir);
+	ralloc_free(cs_3d.nir);
 	return result;
 }
 
@@ -221,6 +268,9 @@ radv_device_finish_meta_itob_state(struct radv_device *device)
 					&state->alloc);
 	radv_DestroyPipeline(radv_device_to_handle(device),
 			     state->itob.pipeline, &state->alloc);
+	if (device->physical_device->rad_info.chip_class >= GFX9)
+		radv_DestroyPipeline(radv_device_to_handle(device),
+				     state->itob.pipeline_3d, &state->alloc);
 }
 
 static nir_shader *
@@ -792,7 +842,7 @@ create_iview(struct radv_cmd_buffer *cmd_buffer,
 			     &(VkImageViewCreateInfo) {
 				     .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
 					     .image = radv_image_to_handle(surf->image),
-					     .viewType = VK_IMAGE_VIEW_TYPE_2D,
+					     .viewType = radv_meta_get_view_type(surf->image),
 					     .format = surf->format,
 					     .subresourceRange = {
 					     .aspectMask = surf->aspect_mask,
@@ -878,6 +928,10 @@ radv_meta_image_to_buffer(struct radv_cmd_buffer *cmd_buffer,
 	itob_bind_descriptors(cmd_buffer, &src_view, &dst_view);
 
 
+	if (device->physical_device->rad_info.chip_class >= GFX9 &&
+	    src->image->type == VK_IMAGE_TYPE_3D)
+		pipeline = cmd_buffer->device->meta_state.itob.pipeline_3d;
+
 	radv_CmdBindPipeline(radv_cmd_buffer_to_handle(cmd_buffer),
 			     VK_PIPELINE_BIND_POINT_COMPUTE, pipeline);
 
diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h
index 9ef1f78932..63e8b50053 100644
--- a/src/amd/vulkan/radv_private.h
+++ b/src/amd/vulkan/radv_private.h
@@ -416,6 +416,7 @@ struct radv_meta_state {
 		VkPipelineLayout                          img_p_layout;
 		VkDescriptorSetLayout                     img_ds_layout;
 		VkPipeline pipeline;
+		VkPipeline pipeline_3d;
 	} itob;
 	struct {
 		VkPipelineLayout                          img_p_layout;
-- 
2.14.3



More information about the mesa-dev mailing list