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shader: Document and relax cache control on surface instructions

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This commit is contained in:
ReinUsesLisp 2021-04-13 06:11:18 -03:00 committed by ameerj
parent fa75b9b062
commit 09165ae189
1 changed files with 11 additions and 10 deletions
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21
src/shader_recompiler/frontend/maxwell/translate/impl/surface_load_store.cpp
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@ -61,18 +61,19 @@ enum class Clamp : u64 {
TRAP,
};
// https://docs.nvidia.com/cuda/parallel-thread-execution/index.html#cache-operators
enum class LoadCache : u64 {
Default,
CG,
CI,
CV,
CA, // Cache at all levels, likely to be accessed again
CG, // Cache at global level (L2 and below, not L1)
CI, // ???
CV, // Don't cache and fetch again (volatile)
};
enum class StoreCache : u64 {
Default,
CG,
CS,
WT,
WB, // Cache write-back all coherent levels
CG, // Cache at global level (L2 and below, not L1)
CS, // Cache streaming, likely to be accessed once
WT, // Cache write-through (to system memory, volatile?)
};
ImageFormat Format(Size size) {
@ -188,7 +189,7 @@ void TranslatorVisitor::SULD(u64 insn) {
if (suld.clamp != Clamp::IGN) {
throw NotImplementedException("Clamp {}", suld.clamp.Value());
}
if (suld.cache != LoadCache::Default) {
if (suld.cache != LoadCache::CA && suld.cache != LoadCache::CG) {
throw NotImplementedException("Cache {}", suld.cache.Value());
}
const bool is_typed{suld.d != 0};
@ -248,7 +249,7 @@ void TranslatorVisitor::SUST(u64 insn) {
if (sust.clamp != Clamp::IGN) {
throw NotImplementedException("Clamp {}", sust.clamp.Value());
}
if (sust.cache != StoreCache::Default) {
if (sust.cache != StoreCache::WB && sust.cache != StoreCache::CG) {
throw NotImplementedException("Cache {}", sust.cache.Value());
}
const bool is_typed{sust.d != 0};