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authorSamuel Pitoiset <[email protected]>2019-10-09 13:34:52 +0200
committerSamuel Pitoiset <[email protected]>2019-10-10 13:23:22 +0200
commit9d17d97ee41ae9d3eb5061a4bc607e430bdae477 (patch)
tree97d0fbbd5d319e5e58a9f3f13ef45004c1bb645d
parentdad80eadb2815727ece2827ca29dd648ab1adbb1 (diff)
radv: use a compute shader for copying timestamp query results
When the timestamp is not ready (ie. UINT64_MAX), the availabily bit should be zero. The previous code used to copy the timestamp value as the availabily bit and that's completely wrong. Because it's not that simple to emit a conditional with the CP, the driver now uses a compute shader for copying timestamp query results. Fixes dEQP-VK.pipeline.timestamp.misc_tests.reset_query_before_copy. Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Bas Nieuwenhuizen <[email protected]>
-rw-r--r--src/amd/vulkan/radv_private.h1
-rw-r--r--src/amd/vulkan/radv_query.c256
2 files changed, 227 insertions, 30 deletions
diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h
index 4babe8b0359..20a3cd38903 100644
--- a/src/amd/vulkan/radv_private.h
+++ b/src/amd/vulkan/radv_private.h
@@ -638,6 +638,7 @@ struct radv_meta_state {
VkPipeline occlusion_query_pipeline;
VkPipeline pipeline_statistics_query_pipeline;
VkPipeline tfb_query_pipeline;
+ VkPipeline timestamp_query_pipeline;
} query;
struct {
diff --git a/src/amd/vulkan/radv_query.c b/src/amd/vulkan/radv_query.c
index cafe0253864..8872bf1bbce 100644
--- a/src/amd/vulkan/radv_query.c
+++ b/src/amd/vulkan/radv_query.c
@@ -741,12 +741,196 @@ build_tfb_query_shader(struct radv_device *device)
return b.shader;
}
+static nir_shader *
+build_timestamp_query_shader(struct radv_device *device)
+{
+ /* the shader this builds is roughly
+ *
+ * uint32_t src_stride = 8;
+ *
+ * location(binding = 0) buffer dst_buf;
+ * location(binding = 1) buffer src_buf;
+ *
+ * void main() {
+ * uint64_t result = 0;
+ * bool available = false;
+ * uint64_t src_offset = src_stride * global_id.x;
+ * uint64_t dst_offset = dst_stride * global_id.x;
+ * uint64_t timestamp = src_buf[src_offset];
+ * if (timestamp != TIMESTAMP_NOT_READY) {
+ * result = timestamp;
+ * available = true;
+ * }
+ * uint32_t result_size = flags & VK_QUERY_RESULT_64_BIT ? 8 : 4;
+ * if ((flags & VK_QUERY_RESULT_PARTIAL_BIT) || available) {
+ * if (flags & VK_QUERY_RESULT_64_BIT) {
+ * dst_buf[dst_offset] = result;
+ * } else {
+ * dst_buf[dst_offset] = (uint32_t)result;
+ * }
+ * }
+ * if (flags & VK_QUERY_RESULT_WITH_AVAILABILITY_BIT) {
+ * dst_buf[dst_offset + result_size] = available;
+ * }
+ * }
+ */
+ nir_builder b;
+ nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_COMPUTE, NULL);
+ b.shader->info.name = ralloc_strdup(b.shader, "timestamp_query");
+ b.shader->info.cs.local_size[0] = 64;
+ b.shader->info.cs.local_size[1] = 1;
+ b.shader->info.cs.local_size[2] = 1;
+
+ /* Create and initialize local variables. */
+ nir_variable *result =
+ nir_local_variable_create(b.impl, glsl_uint64_t_type(), "result");
+ nir_variable *available =
+ nir_local_variable_create(b.impl, glsl_bool_type(), "available");
+
+ nir_store_var(&b, result, nir_imm_int64(&b, 0), 0x1);
+ nir_store_var(&b, available, nir_imm_false(&b), 0x1);
+
+ nir_ssa_def *flags = radv_load_push_int(&b, 0, "flags");
+
+ /* Load resources. */
+ nir_intrinsic_instr *dst_buf = nir_intrinsic_instr_create(b.shader,
+ nir_intrinsic_vulkan_resource_index);
+ dst_buf->src[0] = nir_src_for_ssa(nir_imm_int(&b, 0));
+ dst_buf->num_components = 1;
+ nir_intrinsic_set_desc_set(dst_buf, 0);
+ nir_intrinsic_set_binding(dst_buf, 0);
+ nir_ssa_dest_init(&dst_buf->instr, &dst_buf->dest, dst_buf->num_components, 32, NULL);
+ nir_builder_instr_insert(&b, &dst_buf->instr);
+
+ nir_intrinsic_instr *src_buf = nir_intrinsic_instr_create(b.shader,
+ nir_intrinsic_vulkan_resource_index);
+ src_buf->src[0] = nir_src_for_ssa(nir_imm_int(&b, 0));
+ src_buf->num_components = 1;
+ nir_intrinsic_set_desc_set(src_buf, 0);
+ nir_intrinsic_set_binding(src_buf, 1);
+ nir_ssa_dest_init(&src_buf->instr, &src_buf->dest, src_buf->num_components, 32, NULL);
+ nir_builder_instr_insert(&b, &src_buf->instr);
+
+ /* Compute global ID. */
+ nir_ssa_def *invoc_id = nir_load_local_invocation_id(&b);
+ nir_ssa_def *wg_id = nir_load_work_group_id(&b);
+ nir_ssa_def *block_size = nir_imm_ivec4(&b,
+ b.shader->info.cs.local_size[0],
+ b.shader->info.cs.local_size[1],
+ b.shader->info.cs.local_size[2], 0);
+ nir_ssa_def *global_id = nir_iadd(&b, nir_imul(&b, wg_id, block_size), invoc_id);
+ global_id = nir_channel(&b, global_id, 0); // We only care about x here.
+
+ /* Compute src/dst strides. */
+ nir_ssa_def *input_stride = nir_imm_int(&b, 8);
+ nir_ssa_def *input_base = nir_imul(&b, input_stride, global_id);
+ nir_ssa_def *output_stride = radv_load_push_int(&b, 4, "output_stride");
+ nir_ssa_def *output_base = nir_imul(&b, output_stride, global_id);
+
+ /* Load data from the query pool. */
+ nir_intrinsic_instr *load = nir_intrinsic_instr_create(b.shader, nir_intrinsic_load_ssbo);
+ load->src[0] = nir_src_for_ssa(&src_buf->dest.ssa);
+ load->src[1] = nir_src_for_ssa(input_base);
+ nir_ssa_dest_init(&load->instr, &load->dest, 2, 32, NULL);
+ load->num_components = 2;
+ nir_builder_instr_insert(&b, &load->instr);
+
+ /* Pack the timestamp. */
+ nir_ssa_def *timestamp;
+ timestamp = nir_pack_64_2x32(&b, nir_vec2(&b,
+ nir_channel(&b, &load->dest.ssa, 0),
+ nir_channel(&b, &load->dest.ssa, 1)));
+
+ /* Check if result is available. */
+ nir_ssa_def *result_is_available =
+ nir_i2b(&b, nir_ine(&b, timestamp,
+ nir_imm_int64(&b, TIMESTAMP_NOT_READY)));
+
+ /* Only store result if available. */
+ nir_if *available_if = nir_if_create(b.shader);
+ available_if->condition = nir_src_for_ssa(result_is_available);
+ nir_cf_node_insert(b.cursor, &available_if->cf_node);
+
+ b.cursor = nir_after_cf_list(&available_if->then_list);
+
+ nir_store_var(&b, result, timestamp, 0x1);
+ nir_store_var(&b, available, nir_imm_true(&b), 0x1);
+
+ b.cursor = nir_after_cf_node(&available_if->cf_node);
+
+ /* Determine if result is 64 or 32 bit. */
+ nir_ssa_def *result_is_64bit =
+ nir_test_flag(&b, flags, VK_QUERY_RESULT_64_BIT);
+ nir_ssa_def *result_size =
+ nir_bcsel(&b, result_is_64bit, nir_imm_int(&b, 8),
+ nir_imm_int(&b, 4));
+
+ /* Store the result if complete or partial results have been requested. */
+ nir_if *store_if = nir_if_create(b.shader);
+ store_if->condition =
+ nir_src_for_ssa(nir_ior(&b, nir_test_flag(&b, flags, VK_QUERY_RESULT_PARTIAL_BIT),
+ nir_load_var(&b, available)));
+ nir_cf_node_insert(b.cursor, &store_if->cf_node);
+
+ b.cursor = nir_after_cf_list(&store_if->then_list);
+
+ /* Store result. */
+ nir_if *store_64bit_if = nir_if_create(b.shader);
+ store_64bit_if->condition = nir_src_for_ssa(result_is_64bit);
+ nir_cf_node_insert(b.cursor, &store_64bit_if->cf_node);
+
+ b.cursor = nir_after_cf_list(&store_64bit_if->then_list);
+
+ nir_intrinsic_instr *store = nir_intrinsic_instr_create(b.shader, nir_intrinsic_store_ssbo);
+ store->src[0] = nir_src_for_ssa(nir_load_var(&b, result));
+ store->src[1] = nir_src_for_ssa(&dst_buf->dest.ssa);
+ store->src[2] = nir_src_for_ssa(output_base);
+ nir_intrinsic_set_write_mask(store, 0x1);
+ store->num_components = 1;
+ nir_builder_instr_insert(&b, &store->instr);
+
+ b.cursor = nir_after_cf_list(&store_64bit_if->else_list);
+
+ store = nir_intrinsic_instr_create(b.shader, nir_intrinsic_store_ssbo);
+ store->src[0] = nir_src_for_ssa(nir_u2u32(&b, nir_load_var(&b, result)));
+ store->src[1] = nir_src_for_ssa(&dst_buf->dest.ssa);
+ store->src[2] = nir_src_for_ssa(output_base);
+ nir_intrinsic_set_write_mask(store, 0x1);
+ store->num_components = 1;
+ nir_builder_instr_insert(&b, &store->instr);
+
+ b.cursor = nir_after_cf_node(&store_64bit_if->cf_node);
+
+ b.cursor = nir_after_cf_node(&store_if->cf_node);
+
+ /* Store the availability bit if requested. */
+ nir_if *availability_if = nir_if_create(b.shader);
+ availability_if->condition =
+ nir_src_for_ssa(nir_test_flag(&b, flags, VK_QUERY_RESULT_WITH_AVAILABILITY_BIT));
+ nir_cf_node_insert(b.cursor, &availability_if->cf_node);
+
+ b.cursor = nir_after_cf_list(&availability_if->then_list);
+
+ store = nir_intrinsic_instr_create(b.shader, nir_intrinsic_store_ssbo);
+ store->src[0] = nir_src_for_ssa(nir_b2i32(&b, nir_load_var(&b, available)));
+ store->src[1] = nir_src_for_ssa(&dst_buf->dest.ssa);
+ store->src[2] = nir_src_for_ssa(nir_iadd(&b, result_size, output_base));
+ nir_intrinsic_set_write_mask(store, 0x1);
+ store->num_components = 1;
+ nir_builder_instr_insert(&b, &store->instr);
+
+ b.cursor = nir_after_cf_node(&availability_if->cf_node);
+
+ return b.shader;
+}
+
static VkResult radv_device_init_meta_query_state_internal(struct radv_device *device)
{
VkResult result;
struct radv_shader_module occlusion_cs = { .nir = NULL };
struct radv_shader_module pipeline_statistics_cs = { .nir = NULL };
struct radv_shader_module tfb_cs = { .nir = NULL };
+ struct radv_shader_module timestamp_cs = { .nir = NULL };
mtx_lock(&device->meta_state.mtx);
if (device->meta_state.query.pipeline_statistics_query_pipeline) {
@@ -756,6 +940,7 @@ static VkResult radv_device_init_meta_query_state_internal(struct radv_device *d
occlusion_cs.nir = build_occlusion_query_shader(device);
pipeline_statistics_cs.nir = build_pipeline_statistics_query_shader(device);
tfb_cs.nir = build_tfb_query_shader(device);
+ timestamp_cs.nir = build_timestamp_query_shader(device);
VkDescriptorSetLayoutCreateInfo occlusion_ds_create_info = {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
@@ -864,12 +1049,36 @@ static VkResult radv_device_init_meta_query_state_internal(struct radv_device *d
radv_pipeline_cache_to_handle(&device->meta_state.cache),
1, &tfb_pipeline_info, NULL,
&device->meta_state.query.tfb_query_pipeline);
+ if (result != VK_SUCCESS)
+ goto fail;
+
+ VkPipelineShaderStageCreateInfo timestamp_pipeline_shader_stage = {
+ .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
+ .stage = VK_SHADER_STAGE_COMPUTE_BIT,
+ .module = radv_shader_module_to_handle(&timestamp_cs),
+ .pName = "main",
+ .pSpecializationInfo = NULL,
+ };
+
+ VkComputePipelineCreateInfo timestamp_pipeline_info = {
+ .sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO,
+ .stage = timestamp_pipeline_shader_stage,
+ .flags = 0,
+ .layout = device->meta_state.query.p_layout,
+ };
+
+ result = radv_CreateComputePipelines(radv_device_to_handle(device),
+ radv_pipeline_cache_to_handle(&device->meta_state.cache),
+ 1, &timestamp_pipeline_info, NULL,
+ &device->meta_state.query.timestamp_query_pipeline);
+
fail:
if (result != VK_SUCCESS)
radv_device_finish_meta_query_state(device);
ralloc_free(occlusion_cs.nir);
ralloc_free(pipeline_statistics_cs.nir);
ralloc_free(tfb_cs.nir);
+ ralloc_free(timestamp_cs.nir);
mtx_unlock(&device->meta_state.mtx);
return result;
}
@@ -899,6 +1108,11 @@ void radv_device_finish_meta_query_state(struct radv_device *device)
device->meta_state.query.occlusion_query_pipeline,
&device->meta_state.alloc);
+ if (device->meta_state.query.timestamp_query_pipeline)
+ radv_DestroyPipeline(radv_device_to_handle(device),
+ device->meta_state.query.timestamp_query_pipeline,
+ &device->meta_state.alloc);
+
if (device->meta_state.query.p_layout)
radv_DestroyPipelineLayout(radv_device_to_handle(device),
device->meta_state.query.p_layout,
@@ -1308,7 +1522,6 @@ void radv_CmdCopyQueryPoolResults(
RADV_FROM_HANDLE(radv_query_pool, pool, queryPool);
RADV_FROM_HANDLE(radv_buffer, dst_buffer, dstBuffer);
struct radeon_cmdbuf *cs = cmd_buffer->cs;
- unsigned elem_size = (flags & VK_QUERY_RESULT_64_BIT) ? 8 : 4;
uint64_t va = radv_buffer_get_va(pool->bo);
uint64_t dest_va = radv_buffer_get_va(dst_buffer->bo);
dest_va += dst_buffer->offset + dstOffset;
@@ -1368,14 +1581,13 @@ void radv_CmdCopyQueryPoolResults(
pool->availability_offset + 4 * firstQuery);
break;
case VK_QUERY_TYPE_TIMESTAMP:
- for(unsigned i = 0; i < queryCount; ++i, dest_va += stride) {
- unsigned query = firstQuery + i;
- uint64_t local_src_va = va + query * pool->stride;
-
- ASSERTED unsigned cdw_max = radeon_check_space(cmd_buffer->device->ws, cs, 19);
+ if (flags & VK_QUERY_RESULT_WAIT_BIT) {
+ for(unsigned i = 0; i < queryCount; ++i, dest_va += stride) {
+ unsigned query = firstQuery + i;
+ uint64_t local_src_va = va + query * pool->stride;
+ radeon_check_space(cmd_buffer->device->ws, cs, 7);
- if (flags & VK_QUERY_RESULT_WAIT_BIT) {
/* Wait on the high 32 bits of the timestamp in
* case the low part is 0xffffffff.
*/
@@ -1384,30 +1596,14 @@ void radv_CmdCopyQueryPoolResults(
TIMESTAMP_NOT_READY >> 32,
0xffffffff);
}
- if (flags & VK_QUERY_RESULT_WITH_AVAILABILITY_BIT) {
- uint64_t avail_dest_va = dest_va + elem_size;
-
- radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0));
- radeon_emit(cs, COPY_DATA_SRC_SEL(COPY_DATA_SRC_MEM) |
- COPY_DATA_DST_SEL(COPY_DATA_DST_MEM_GRBM));
- radeon_emit(cs, local_src_va);
- radeon_emit(cs, local_src_va >> 32);
- radeon_emit(cs, avail_dest_va);
- radeon_emit(cs, avail_dest_va >> 32);
- }
-
- radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0));
- radeon_emit(cs, COPY_DATA_SRC_SEL(COPY_DATA_SRC_MEM) |
- COPY_DATA_DST_SEL(COPY_DATA_DST_MEM_GRBM) |
- ((flags & VK_QUERY_RESULT_64_BIT) ? COPY_DATA_COUNT_SEL : 0));
- radeon_emit(cs, local_src_va);
- radeon_emit(cs, local_src_va >> 32);
- radeon_emit(cs, dest_va);
- radeon_emit(cs, dest_va >> 32);
-
-
- assert(cs->cdw <= cdw_max);
}
+
+ radv_query_shader(cmd_buffer, &cmd_buffer->device->meta_state.query.timestamp_query_pipeline,
+ pool->bo, dst_buffer->bo,
+ firstQuery * pool->stride,
+ dst_buffer->offset + dstOffset,
+ pool->stride, stride,
+ queryCount, flags, 0, 0);
break;
case VK_QUERY_TYPE_TRANSFORM_FEEDBACK_STREAM_EXT:
if (flags & VK_QUERY_RESULT_WAIT_BIT) {