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Kernel: Refactor storage stack with u64 as block index

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This commit is contained in:
Jean-Baptiste Boric 2021-03-16 20:31:45 +01:00 committed by Andreas Kling
parent 9a3aa7eb0b
commit 999c57ef2d
Notes: sideshowbarker 2024-07-18 21:16:03 +09:00 
Author: https://github.com/boricj
Commit: https://github.com/SerenityOS/serenity/commit/999c57ef2df
Pull-request: https://github.com/SerenityOS/serenity/pull/5766
Reviewed-by: https://github.com/supercomputer7
4 changed files with 15 additions and 15 deletions
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6
Kernel/Devices/BlockDevice.cpp
View File

@ -28,7 +28,7 @@
namespace Kernel {
AsyncBlockDeviceRequest::AsyncBlockDeviceRequest(Device& block_device, RequestType request_type, u32 block_index, u32 block_count, const UserOrKernelBuffer& buffer, size_t buffer_size)
AsyncBlockDeviceRequest::AsyncBlockDeviceRequest(Device& block_device, RequestType request_type, u64 block_index, u32 block_count, const UserOrKernelBuffer& buffer, size_t buffer_size)
: AsyncDeviceRequest(block_device)
, m_block_device(static_cast<BlockDevice&>(block_device))
, m_request_type(request_type)
@ -48,7 +48,7 @@ BlockDevice::~BlockDevice()
{
}
bool BlockDevice::read_block(unsigned index, UserOrKernelBuffer& buffer)
bool BlockDevice::read_block(u64 index, UserOrKernelBuffer& buffer)
{
auto read_request = make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Read, index, 1, buffer, 512);
switch (read_request->wait().request_result()) {
@ -69,7 +69,7 @@ bool BlockDevice::read_block(unsigned index, UserOrKernelBuffer& buffer)
return false;
}
bool BlockDevice::write_block(unsigned index, const UserOrKernelBuffer& buffer)
bool BlockDevice::write_block(u64 index, const UserOrKernelBuffer& buffer)
{
auto write_request = make_request<AsyncBlockDeviceRequest>(AsyncBlockDeviceRequest::Write, index, 1, buffer, 512);
switch (write_request->wait().request_result()) {

10
Kernel/Devices/BlockDevice.h
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@ -39,10 +39,10 @@ public:
Write
};
AsyncBlockDeviceRequest(Device& block_device, RequestType request_type,
u32 block_index, u32 block_count, const UserOrKernelBuffer& buffer, size_t buffer_size);
u64 block_index, u32 block_count, const UserOrKernelBuffer& buffer, size_t buffer_size);
RequestType request_type() const { return m_request_type; }
u32 block_index() const { return m_block_index; }
u64 block_index() const { return m_block_index; }
u32 block_count() const { return m_block_count; }
UserOrKernelBuffer& buffer() { return m_buffer; }
const UserOrKernelBuffer& buffer() const { return m_buffer; }
@ -64,7 +64,7 @@ public:
private:
BlockDevice& m_block_device;
const RequestType m_request_type;
const u32 m_block_index;
const u64 m_block_index;
const u32 m_block_count;
UserOrKernelBuffer m_buffer;
const size_t m_buffer_size;
@ -77,8 +77,8 @@ public:
size_t block_size() const { return m_block_size; }
virtual bool is_seekable() const override { return true; }
bool read_block(unsigned index, UserOrKernelBuffer&);
bool write_block(unsigned index, const UserOrKernelBuffer&);
bool read_block(u64 index, UserOrKernelBuffer&);
bool write_block(u64 index, const UserOrKernelBuffer&);
virtual void start_request(AsyncBlockDeviceRequest&) = 0;

12
Kernel/Storage/IDEChannel.cpp
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@ -401,7 +401,7 @@ UNMAP_AFTER_INIT void IDEChannel::detect_disks()
}
}
void IDEChannel::ata_access(Direction direction, bool slave_request, u32 lba, u8 block_count, u16 capabilities, bool use_dma)
void IDEChannel::ata_access(Direction direction, bool slave_request, u64 lba, u8 block_count, u16 capabilities, bool use_dma)
{
LBAMode lba_mode;
u8 head = 0;
@ -432,8 +432,8 @@ void IDEChannel::ata_access(Direction direction, bool slave_request, u32 lba, u8
if (lba_mode == LBAMode::FortyEightBit) {
m_io_group.io_base().offset(ATA_REG_SECCOUNT1).out<u8>(0);
m_io_group.io_base().offset(ATA_REG_LBA3).out<u8>((lba & 0xFF000000) >> 24);
m_io_group.io_base().offset(ATA_REG_LBA4).out<u8>(0);
m_io_group.io_base().offset(ATA_REG_LBA5).out<u8>(0);
m_io_group.io_base().offset(ATA_REG_LBA4).out<u8>((lba & 0xFF00000000ull) >> 32);
m_io_group.io_base().offset(ATA_REG_LBA5).out<u8>((lba & 0xFF0000000000ull) >> 40);
}
m_io_group.io_base().offset(ATA_REG_SECCOUNT0).out<u8>(block_count);
@ -470,7 +470,7 @@ void IDEChannel::ata_access(Direction direction, bool slave_request, u32 lba, u8
void IDEChannel::ata_read_sectors_with_dma(bool slave_request, u16 capabilities)
{
auto& request = *m_current_request;
u32 lba = request.block_index();
auto lba = request.block_index();
dbgln_if(PATA_DEBUG, "IDEChannel::ata_read_sectors_with_dma ({} x {})", lba, request.block_count());
prdt().offset = m_dma_buffer_page->paddr();
@ -530,7 +530,7 @@ void IDEChannel::ata_read_sectors(bool slave_request, u16 capabilities)
void IDEChannel::ata_write_sectors_with_dma(bool slave_request, u16 capabilities)
{
auto& request = *m_current_request;
u32 lba = request.block_index();
auto lba = request.block_index();
dbgln_if(PATA_DEBUG, "IDEChannel::ata_write_sectors_with_dma ({} x {})", lba, request.block_count());
prdt().offset = m_dma_buffer_page->paddr();
@ -586,7 +586,7 @@ void IDEChannel::ata_write_sectors(bool slave_request, u16 capabilities)
auto& request = *m_current_request;
VERIFY(request.block_count() <= 256);
u32 start_sector = request.block_index();
auto start_sector = request.block_index();
u32 count = request.block_count();
dbgln_if(PATA_DEBUG, "IDEChannel: Writing {} sector(s) @ LBA {}", count, start_sector);

2
Kernel/Storage/IDEChannel.h
View File

@ -140,7 +140,7 @@ private:
void clear_pending_interrupts() const;
void ata_access(Direction, bool, u32, u8, u16, bool);
void ata_access(Direction, bool, u64, u8, u16, bool);
void ata_read_sectors_with_dma(bool, u16);
void ata_read_sectors(bool, u16);
bool ata_do_read_sector();