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Use shader memory mirror when reading guest shaders

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Avoids triggering any traps that may be present on the region
This commit is contained in:
Billy Laws 2022-10-16 20:59:14 +01:00
parent f6e4328b5a
commit e483cf9634
1 changed files with 6 additions and 5 deletions
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11
app/src/main/cpp/skyline/gpu/interconnect/maxwell_3d/pipeline_state.cpp
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@ -305,8 +305,11 @@ namespace skyline::gpu::interconnect::maxwell3d {
return;
}
// entry->mirror may not be a direct mirror of blockMapping and may just contain it as a subregion, so we need to explicitly calculate the offset
span<u8> blockMappingMirror{blockMapping.data() - mirrorBlock.data() + entry->mirror.data(), blockMapping.size()};
// If nothing was in the cache then do a full shader parse
auto guest{[](span<u8> mapping) {
binary.binary = [](span<u8> mapping) {
// We attempt to find the shader size by looking for "BRA $" (Infinite Loop) which is used as padding at the end of the shader
// UAM Shader Compiler Reference: https://github.com/devkitPro/uam/blob/5a5afc2bae8b55409ab36ba45be63fcb73f68993/source/compiler_iface.cpp#L319-L351
constexpr u64 BraSelf1{0xE2400FFFFF87000F}, BraSelf2{0xE2400FFFFF07000F};
@ -320,12 +323,10 @@ namespace skyline::gpu::interconnect::maxwell3d {
}
return span<u8>{};
}(blockMapping.subspan(blockOffset))};
}(blockMappingMirror.subspan(blockOffset));
binary.baseOffset = engine->pipeline.programOffset;
hash = XXH64(guest.data(), guest.size_bytes(), 0);
binary.binary = {guest.data() - mirrorBlock.data() + entry->mirror.data(), guest.size()};
hash = XXH64(binary.binary.data(), binary.binary.size_bytes(), 0);
entry->cache.insert({blockMapping.data() + blockOffset, CacheEntry{binary, hash}});
}