diff options
Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r-- | src/core/hle/kernel/k_page_buffer.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/core/hle/kernel/k_page_buffer.h b/src/core/hle/kernel/k_page_buffer.h new file mode 100644 index 000000000..0a9451228 --- /dev/null +++ b/src/core/hle/kernel/k_page_buffer.h @@ -0,0 +1,34 @@ +// Copyright 2022 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> + +#include "common/alignment.h" +#include "common/assert.h" +#include "common/common_types.h" +#include "core/core.h" +#include "core/device_memory.h" +#include "core/hle/kernel/memory_types.h" + +namespace Kernel { + +class KPageBuffer final : public KSlabAllocated<KPageBuffer> { +public: + KPageBuffer() = default; + + static KPageBuffer* FromPhysicalAddress(Core::System& system, PAddr phys_addr) { + ASSERT(Common::IsAligned(phys_addr, PageSize)); + return reinterpret_cast<KPageBuffer*>(system.DeviceMemory().GetPointer(phys_addr)); + } + +private: + [[maybe_unused]] alignas(PageSize) std::array<u8, PageSize> m_buffer{}; +}; + +static_assert(sizeof(KPageBuffer) == PageSize); +static_assert(alignof(KPageBuffer) == PageSize); + +} // namespace Kernel |