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radv: Handle command buffers that need scratch memory.

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v2: Create the descriptor BO with CPU access.
Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Bas Nieuwenhuizen
2017-01-29 13:53:05 +01:00
parent ccff93e138
commit c4d7b9cd29
3 changed files with 199 additions and 6 deletions
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11
src/amd/vulkan/radv_pipeline.c
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@@ -363,12 +363,13 @@ static void radv_fill_shader_variant(struct radv_device *device,
struct ac_shader_binary *binary,
gl_shader_stage stage)
{
variant->code_size = binary->code_size;
bool scratch_enabled = variant->config.scratch_bytes_per_wave > 0;
unsigned vgpr_comp_cnt = 0;
if (scratch_enabled)
radv_finishme("shader scratch space");
if (scratch_enabled && !device->llvm_supports_spill)
radv_finishme("shader scratch support only available with LLVM 4.0");
variant->code_size = binary->code_size;
switch (stage) {
case MESA_SHADER_VERTEX:
@@ -433,8 +434,8 @@ static struct radv_shader_variant *radv_shader_variant_create(struct radv_device
options.unsafe_math = !!(device->debug_flags & RADV_DEBUG_UNSAFE_MATH);
options.family = chip_family;
options.chip_class = device->physical_device->rad_info.chip_class;
options.supports_spill = false;
tm = ac_create_target_machine(chip_family, false);
options.supports_spill = device->llvm_supports_spill;
tm = ac_create_target_machine(chip_family, options.supports_spill);
ac_compile_nir_shader(tm, &binary, &variant->config,
&variant->info, shader, &options, dump);
LLVMDisposeTargetMachine(tm);