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radv/gfx10: launch 2 compute waves per CU before going onto the next CU

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset
2019-07-12 12:17:13 +02:00
parent e631d65fc6
commit 3f76c0f47c
1 changed files with 9 additions and 4 deletions
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src/amd/vulkan/radv_pipeline.c
+9 -4
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@@ -4378,6 +4378,7 @@ radv_compute_generate_pm4(struct radv_pipeline *pipeline)
{
struct radv_shader_variant *compute_shader;
struct radv_device *device = pipeline->device;
unsigned threads_per_threadgroup;
unsigned threadgroups_per_cu = 1;
unsigned waves_per_threadgroup;
unsigned max_waves_per_sh = 0;
@@ -4402,10 +4403,14 @@ radv_compute_generate_pm4(struct radv_pipeline *pipeline)
S_00B860_WAVESIZE(pipeline->scratch_bytes_per_wave >> 10));
/* Calculate best compute resource limits. */
waves_per_threadgroup =
DIV_ROUND_UP(compute_shader->info.cs.block_size[0] *
compute_shader->info.cs.block_size[1] *
compute_shader->info.cs.block_size[2], 64);
threads_per_threadgroup = compute_shader->info.cs.block_size[0] *
compute_shader->info.cs.block_size[1] *
compute_shader->info.cs.block_size[2];
waves_per_threadgroup = DIV_ROUND_UP(threads_per_threadgroup, 64);
if (device->physical_device->rad_info.chip_class >= GFX10 &&
waves_per_threadgroup == 1)
threadgroups_per_cu = 2;
radeon_set_sh_reg(&pipeline->cs, R_00B854_COMPUTE_RESOURCE_LIMITS,
ac_get_compute_resource_limits(&device->physical_device->rad_info,