e5da93757a
We have a weird bug in context switching where a process's rsp0 ends up pointing at the wrong value sometimes which crashes the OS.
33 lines
772 B
C++
33 lines
772 B
C++
#pragma once
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#include <mammoth/memory_region.h>
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#include <stdint.h>
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#include "ahci/ahci.h"
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class Command {
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public:
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virtual ~Command();
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virtual void PopulateFis(uint8_t* command_fis) = 0;
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virtual void PopulatePrdt(PhysicalRegionDescriptor* prdt) = 0;
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virtual void Callback() = 0;
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};
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class DmaReadCommand : public Command {
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public:
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typedef void (*DmaCallback)(uint64_t, uint64_t, uint64_t);
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DmaReadCommand(uint64_t lba, uint64_t sector_cnt, DmaCallback callback);
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virtual ~DmaReadCommand() override;
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void PopulateFis(uint8_t* command_fis) override;
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void PopulatePrdt(PhysicalRegionDescriptor* prdt) override;
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void Callback() override;
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private:
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uint64_t lba_;
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uint64_t sector_cnt_;
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DmaCallback callback_;
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MappedMemoryRegion region_;
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};
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