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Merge pull request #3487 from wwylele/no-cached-io

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Memory: remove RasterizerCachedSpecial page type
This commit is contained in:
Mat M 2018-03-09 21:13:20 -05:00 committed by GitHub
commit 2085c9d7df
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2 changed files with 0 additions and 53 deletions
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50
src/core/memory.cpp
View file

@ -165,10 +165,6 @@ T Read(const VAddr vaddr) {
}
case PageType::Special:
return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
case PageType::RasterizerCachedSpecial: {
RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush);
return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
}
default:
UNREACHABLE();
}
@ -206,11 +202,6 @@ void Write(const VAddr vaddr, const T data) {
case PageType::Special:
WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
break;
case PageType::RasterizerCachedSpecial: {
RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Invalidate);
WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
break;
}
default:
UNREACHABLE();
}
@ -367,9 +358,6 @@ void RasterizerMarkRegionCached(PAddr start, u32 size, bool cached) {
page_type = PageType::RasterizerCachedMemory;
current_page_table->pointers[vaddr >> PAGE_BITS] = nullptr;
break;
case PageType::Special:
page_type = PageType::RasterizerCachedSpecial;
break;
default:
UNREACHABLE();
}
@ -393,9 +381,6 @@ void RasterizerMarkRegionCached(PAddr start, u32 size, bool cached) {
}
break;
}
case PageType::RasterizerCachedSpecial:
page_type = PageType::Special;
break;
default:
UNREACHABLE();
}
@ -523,14 +508,6 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_
std::memcpy(dest_buffer, GetPointerFromVMA(process, current_vaddr), copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
DEBUG_ASSERT(handler);
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Flush);
handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
break;
}
default:
UNREACHABLE();
}
@ -599,14 +576,6 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi
std::memcpy(GetPointerFromVMA(process, current_vaddr), src_buffer, copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
DEBUG_ASSERT(handler);
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Invalidate);
handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
break;
}
default:
UNREACHABLE();
}
@ -659,14 +628,6 @@ void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const size
std::memset(GetPointerFromVMA(process, current_vaddr), 0, copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
DEBUG_ASSERT(handler);
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Invalidate);
handler->WriteBlock(current_vaddr, zeros.data(), copy_amount);
break;
}
default:
UNREACHABLE();
}
@ -718,17 +679,6 @@ void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
WriteBlock(process, dest_addr, GetPointerFromVMA(process, current_vaddr), copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
DEBUG_ASSERT(handler);
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Flush);
std::vector<u8> buffer(copy_amount);
handler->ReadBlock(current_vaddr, buffer.data(), buffer.size());
WriteBlock(process, dest_addr, buffer.data(), buffer.size());
break;
}
default:
UNREACHABLE();
}

3
src/core/memory.h
View file

@ -37,9 +37,6 @@ enum class PageType {
RasterizerCachedMemory,
/// Page is mapped to a I/O region. Writing and reading to this page is handled by functions.
Special,
/// Page is mapped to a I/O region, but also needs to check for rasterizer cache flushing and
/// invalidation
RasterizerCachedSpecial,
};
struct SpecialRegion {