memory: Port RasterizerFlushVirtualRegion from Citra.
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6ced80bb47
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@ -42,6 +42,9 @@ static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, Pa
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LOG_DEBUG(HW_Memory, "Mapping %p onto %016" PRIX64 "-%016" PRIX64, memory, base * PAGE_SIZE,
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(base + size) * PAGE_SIZE);
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RasterizerFlushVirtualRegion(base << PAGE_BITS, size * PAGE_SIZE,
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FlushMode::FlushAndInvalidate);
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VAddr end = base + size;
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while (base != end) {
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ASSERT_MSG(base < PAGE_TABLE_NUM_ENTRIES, "out of range mapping at %016" PRIX64, base);
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@ -293,6 +296,42 @@ u8* GetPhysicalPointer(PAddr address) {
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return target_pointer;
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}
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void RasterizerFlushVirtualRegion(VAddr start, u32 size, FlushMode mode) {
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// Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
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// null here
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if (VideoCore::g_renderer == nullptr) {
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return;
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}
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VAddr end = start + size;
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auto CheckRegion = [&](VAddr region_start, VAddr region_end) {
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if (start >= region_end || end <= region_start) {
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// No overlap with region
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return;
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}
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VAddr overlap_start = std::max(start, region_start);
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VAddr overlap_end = std::min(end, region_end);
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u32 overlap_size = overlap_end - overlap_start;
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auto* rasterizer = VideoCore::g_renderer->Rasterizer();
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switch (mode) {
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case FlushMode::Flush:
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rasterizer->FlushRegion(region_start, overlap_size);
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break;
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case FlushMode::Invalidate:
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rasterizer->InvalidateRegion(region_start, overlap_size);
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break;
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case FlushMode::FlushAndInvalidate:
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rasterizer->FlushAndInvalidateRegion(region_start, overlap_size);
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break;
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}
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};
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CheckRegion(HEAP_VADDR, HEAP_VADDR_END);
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}
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u8 Read8(const VAddr addr) {
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return Read<u8>(addr);
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}
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@ -36,7 +36,10 @@ enum class PageType : u8 {
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Unmapped,
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/// Page is mapped to regular memory. This is the only type you can get pointers to.
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Memory,
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/// Page is mapped to a memory hook, which intercepts read and write requests.
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/// Page is mapped to regular memory, but also needs to check for rasterizer cache flushing and
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/// invalidation
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RasterizerCachedMemory,
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/// Page is mapped to a I/O region. Writing and reading to this page is handled by functions.
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Special,
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};
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@ -253,4 +256,19 @@ boost::optional<VAddr> PhysicalToVirtualAddress(PAddr addr);
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*/
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u8* GetPhysicalPointer(PAddr address);
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enum class FlushMode {
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/// Write back modified surfaces to RAM
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Flush,
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/// Remove region from the cache
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Invalidate,
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/// Write back modified surfaces to RAM, and also remove them from the cache
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FlushAndInvalidate,
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};
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/**
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* Flushes and invalidates any externally cached rasterizer resources touching the given virtual
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* address region.
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*/
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void RasterizerFlushVirtualRegion(VAddr start, u32 size, FlushMode mode);
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} // namespace Memory
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