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memory_manager: Add implement CpuToGpuAddress.

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This commit is contained in:
bunnei 2018-04-21 14:40:51 -04:00
parent 239ac8abe2
commit 10c6d89119
2 changed files with 27 additions and 0 deletions
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17
src/video_core/memory_manager.cpp
View file

@ -38,6 +38,9 @@ GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, u64 size) {
PageSlot(*gpu_addr + offset) = cpu_addr + offset;
}
MappedRegion region{cpu_addr, *gpu_addr, size};
mapped_regions.push_back(region);
return *gpu_addr;
}
@ -49,6 +52,9 @@ GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, GPUVAddr gpu_addr, u64 size)
PageSlot(gpu_addr + offset) = cpu_addr + offset;
}
MappedRegion region{cpu_addr, gpu_addr, size};
mapped_regions.push_back(region);
return gpu_addr;
}
@ -84,6 +90,17 @@ boost::optional<VAddr> MemoryManager::GpuToCpuAddress(GPUVAddr gpu_addr) {
return base_addr + (gpu_addr & PAGE_MASK);
}
std::vector<GPUVAddr> MemoryManager::CpuToGpuAddress(VAddr cpu_addr) const {
std::vector<GPUVAddr> results;
for (const auto& region : mapped_regions) {
if (cpu_addr >= region.cpu_addr && cpu_addr < (region.cpu_addr + region.size)) {
u64 offset = cpu_addr - region.cpu_addr;
results.push_back(region.gpu_addr + offset);
}
}
return results;
}
bool MemoryManager::IsPageMapped(GPUVAddr gpu_addr) {
return PageSlot(gpu_addr) != static_cast<u64>(PageStatus::Unmapped);
}

10
src/video_core/memory_manager.h
View file

@ -6,6 +6,7 @@
#include <array>
#include <memory>
#include <vector>
#include <boost/optional.hpp>
@ -26,6 +27,7 @@ public:
GPUVAddr MapBufferEx(VAddr cpu_addr, u64 size);
GPUVAddr MapBufferEx(VAddr cpu_addr, GPUVAddr gpu_addr, u64 size);
boost::optional<VAddr> GpuToCpuAddress(GPUVAddr gpu_addr);
std::vector<GPUVAddr> CpuToGpuAddress(VAddr cpu_addr) const;
static constexpr u64 PAGE_BITS = 16;
static constexpr u64 PAGE_SIZE = 1 << PAGE_BITS;
@ -51,6 +53,14 @@ private:
using PageBlock = std::array<VAddr, PAGE_BLOCK_SIZE>;
std::array<std::unique_ptr<PageBlock>, PAGE_TABLE_SIZE> page_table{};
struct MappedRegion {
VAddr cpu_addr;
GPUVAddr gpu_addr;
u64 size;
};
std::vector<MappedRegion> mapped_regions;
};
} // namespace Tegra