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Revert "Kernel: Implement an asynchronous device request stack"

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This reverts commit 2fd5ce1eb0.

This broke booting without SMP. (PR was #3921)
This commit is contained in:
Andreas Kling 2020-11-04 21:25:26 +01:00
parent 70eaadc1cd
commit 501cef2bd7
17 changed files with 245 additions and 803 deletions
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10
Kernel/Devices/PATADiskDevice.h
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@ -54,10 +54,13 @@ public:
static NonnullRefPtr<PATADiskDevice> create(PATAChannel&, DriveType, int major, int minor);
virtual ~PATADiskDevice() override;
// ^DiskDevice
virtual bool read_blocks(unsigned index, u16 count, UserOrKernelBuffer&) override;
virtual bool write_blocks(unsigned index, u16 count, const UserOrKernelBuffer&) override;
void set_drive_geometry(u16, u16, u16);
// ^BlockDevice
virtual void start_request(AsyncBlockDeviceRequest&) override;
virtual KResultOr<size_t> read(FileDescription&, size_t, UserOrKernelBuffer&, size_t) override;
virtual bool can_read(const FileDescription&, size_t) const override;
virtual KResultOr<size_t> write(FileDescription&, size_t, const UserOrKernelBuffer&, size_t) override;
@ -70,6 +73,11 @@ private:
// ^DiskDevice
virtual const char* class_name() const override;
bool wait_for_irq();
bool read_sectors_with_dma(u32 lba, u16 count, UserOrKernelBuffer&);
bool write_sectors_with_dma(u32 lba, u16 count, const UserOrKernelBuffer&);
bool read_sectors(u32 lba, u16 count, UserOrKernelBuffer& buffer);
bool write_sectors(u32 lba, u16 count, const UserOrKernelBuffer& data);
bool is_slave() const;
Lock m_lock { "IDEDiskDevice" };