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61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
#pragma once
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#include <string>
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#include <fnd/types.h>
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#include <nx/KernelCapabilityEntry.h>
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namespace nx
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{
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class MemoryPageEntry
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{
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public:
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MemoryPageEntry();
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MemoryPageEntry(const KernelCapabilityEntry& kernel_cap);
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MemoryPageEntry(uint32_t page);
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MemoryPageEntry(uint32_t page, bool flag);
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void operator=(const MemoryPageEntry& other);
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bool operator==(const MemoryPageEntry& other) const;
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bool operator!=(const MemoryPageEntry& other) const;
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// kernel capability
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const KernelCapabilityEntry& getKernelCapability() const;
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void setKernelCapability(const KernelCapabilityEntry& kernel_cap);
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// variables
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uint32_t getPage() const;
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void setPage(uint32_t page);
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bool getFlag() const;
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void setFlag(bool flag);
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bool isMultiplePages() const;
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void setMapMultiplePages(bool useFlag);
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private:
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const std::string kModuleName = "MEMORY_PAGE_ENTRY";
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static const uint32_t kPageBits = 24;
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static const uint32_t kMaxPage = BIT(kPageBits) - 1;
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KernelCapabilityEntry mCap;
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uint32_t mPage;
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bool mFlag;
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bool mUseFlag;
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inline void updateCapField()
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{
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uint32_t field = 0;
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field |= (uint32_t)(mPage & kMaxPage) << 0;
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field |= (uint32_t)(mFlag) << kPageBits;
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mCap.setField(field);
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mCap.setType(mUseFlag ? kc::KC_MEMORY_MAP : kc::KC_IO_MEMORY_MAP);
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}
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inline void processCapField()
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{
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uint32_t field = mCap.getField();
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mPage = (field >> 0) & kMaxPage;
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mFlag = (field >> kPageBits);
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mUseFlag = mCap.getType() == kc::KC_MEMORY_MAP;
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}
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};
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}
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