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radv: use wave32 for raytracing

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Beginning of Quake II RTX, 50% resolution scale, RX 6800: 48 -> 54 FPS.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14011>
This commit is contained in:
Rhys Perry 2021-12-02 16:12:23 +00:00 committed by Marge Bot
parent 2298a96f9f
commit e7002b6f96
6 changed files with 19 additions and 0 deletions
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2
docs/envvars.rst
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@ -698,6 +698,8 @@ RADV driver environment variables
enable rt extensions whose implementation is still experimental.
``sam``
enable optimizations to move more driver internal objects to VRAM.
``rtwave64``
enable wave64 for ray tracing shaders (GFX10+)
:envvar:`RADV_TEX_ANISO`
force anisotropy filter (up to 16)

1
src/amd/vulkan/radv_debug.h
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@ -81,6 +81,7 @@ enum {
RADV_PERFTEST_NGGC = 1u << 9,
RADV_PERFTEST_FORCE_EMULATE_RT = 1u << 10,
RADV_PERFTEST_NV_MS = 1u << 11,
RADV_PERFTEST_RT_WAVE_64 = 1u << 12,
};
bool radv_init_trace(struct radv_device *device);

5
src/amd/vulkan/radv_device.c
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@ -724,6 +724,7 @@ radv_physical_device_try_create(struct radv_instance *instance, drmDevicePtr drm
device->cs_wave_size = 64;
device->ps_wave_size = 64;
device->ge_wave_size = 64;
device->rt_wave_size = 64;
if (device->rad_info.chip_class >= GFX10) {
if (device->instance->perftest_flags & RADV_PERFTEST_CS_WAVE_32)
@ -735,6 +736,9 @@ radv_physical_device_try_create(struct radv_instance *instance, drmDevicePtr drm
if (device->instance->perftest_flags & RADV_PERFTEST_GE_WAVE_32)
device->ge_wave_size = 32;
if (!(device->instance->perftest_flags & RADV_PERFTEST_RT_WAVE_64))
device->rt_wave_size = 32;
}
radv_physical_device_init_mem_types(device);
@ -879,6 +883,7 @@ static const struct debug_control radv_perftest_options[] = {{"localbos", RADV_P
{"nggc", RADV_PERFTEST_NGGC},
{"force_emulate_rt", RADV_PERFTEST_FORCE_EMULATE_RT},
{"nv_ms", RADV_PERFTEST_NV_MS},
{"rtwave64", RADV_PERFTEST_RT_WAVE_64},
{NULL, 0}};
const char *

2
src/amd/vulkan/radv_pipeline.c
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@ -276,6 +276,8 @@ radv_get_hash_flags(const struct radv_device *device, bool stats)
hash_flags |= RADV_HASH_SHADER_USE_NGG_CULLING;
if (device->instance->perftest_flags & RADV_PERFTEST_FORCE_EMULATE_RT)
hash_flags |= RADV_HASH_SHADER_FORCE_EMULATE_RT;
if (device->physical_device->rt_wave_size == 64)
hash_flags |= RADV_HASH_SHADER_RT_WAVE64;
if (device->physical_device->cs_wave_size == 32)
hash_flags |= RADV_HASH_SHADER_CS_WAVE32;
if (device->physical_device->ps_wave_size == 32)

7
src/amd/vulkan/radv_pipeline_rt.c
View File

@ -2200,6 +2200,12 @@ radv_rt_pipeline_create(VkDevice _device, VkPipelineCache _cache,
radv_hash_rt_shaders(hash, &local_create_info, radv_get_hash_flags(device, keep_statistic_info));
struct vk_shader_module module = {.base.type = VK_OBJECT_TYPE_SHADER_MODULE};
VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT subgroup_size = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO_EXT,
.pNext = NULL,
.requiredSubgroupSize = device->physical_device->rt_wave_size,
};
VkComputePipelineCreateInfo compute_info = {
.sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO,
.pNext = NULL,
@ -2207,6 +2213,7 @@ radv_rt_pipeline_create(VkDevice _device, VkPipelineCache _cache,
.stage =
{
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.pNext = &subgroup_size,
.stage = VK_SHADER_STAGE_COMPUTE_BIT,
.module = vk_shader_module_to_handle(&module),
.pName = "main",

2
src/amd/vulkan/radv_private.h
View File

@ -287,6 +287,7 @@ struct radv_physical_device {
uint8_t ps_wave_size;
uint8_t cs_wave_size;
uint8_t ge_wave_size;
uint8_t rt_wave_size;
/* Whether to use the LLVM compiler backend */
bool use_llvm;
@ -1712,6 +1713,7 @@ struct radv_event {
#define RADV_HASH_SHADER_ROBUST_BUFFER_ACCESS2 (1 << 15)
#define RADV_HASH_SHADER_FORCE_EMULATE_RT (1 << 16)
#define RADV_HASH_SHADER_SPLIT_FMA (1 << 17)
#define RADV_HASH_SHADER_RT_WAVE64 (1 << 18)
struct radv_pipeline_key;