mirror of https://gitlab.com/nakst/essence
34 lines
993 B
C
34 lines
993 B
C
#ifndef ARCH_X86_64_HEADER
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#define ARCH_X86_64_HEADER
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#define LOW_MEMORY_MAP_START (0xFFFFFE0000000000)
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#define LOW_MEMORY_LIMIT (0x100000) // The first 1MB is mapped here.
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extern "C" uint64_t ProcessorReadCR3();
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extern "C" void gdt_data();
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extern "C" void SSSE3Framebuffer32To24Copy(volatile uint8_t *destination, volatile uint8_t *source, size_t pixelGroups);
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extern bool pagingNXESupport;
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extern bool pagingPCIDSupport;
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extern bool pagingSMEPSupport;
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extern bool pagingTCESupport;
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extern "C" void processorGDTR();
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extern "C" void SetupProcessor2(struct NewProcessorStorage *);
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extern "C" void ProcessorInstallTSS(uint32_t *gdt, uint32_t *tss);
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bool HasSSSE3Support();
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uintptr_t GetBootloaderInformationOffset();
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void ArchDelay1Ms(); // Spin for approximately 1ms. Use only during initialisation. Not thread-safe.
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struct NewProcessorStorage {
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struct CPULocalStorage *local;
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uint32_t *gdt;
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};
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NewProcessorStorage AllocateNewProcessorStorage(struct ACPIProcessor *archCPU);
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#endif
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