mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-08 18:26:48 +00:00
磁盘请求在处理时，切换进程
This commit is contained in:
fslongjin
parent
0e8bf69d65
commit
39dd802ff1
@ -1,9 +1,13 @@
|
||||
#include "ahci.h"
|
||||
#include "../../../common/kprint.h"
|
||||
#include "../../../mm/slab.h"
|
||||
#include <syscall/syscall.h>
|
||||
#include <syscall/syscall_num.h>
|
||||
|
||||
struct pci_device_structure_header_t *ahci_devs[MAX_AHCI_DEVICES];
|
||||
|
||||
struct block_device_request_queue ahci_req_queue;
|
||||
|
||||
uint32_t count_ahci_devices = 0;
|
||||
|
||||
uint64_t ahci_port_base_vaddr; // 端口映射base addr
|
||||
@ -27,20 +31,20 @@ void ahci_init()
|
||||
{
|
||||
kinfo("Initializing AHCI...");
|
||||
pci_get_device_structure(0x1, 0x6, ahci_devs, &count_ahci_devices);
|
||||
|
||||
|
||||
if (count_ahci_devices == 0)
|
||||
{
|
||||
kwarn("There is no AHCI device found on this computer!");
|
||||
return;
|
||||
}
|
||||
// 映射ABAR
|
||||
kdebug("phys_2_virt(ahci_devs[0])= %#018lx",(ahci_devs[0]));
|
||||
kdebug("((struct pci_device_structure_general_device_t *)phys_2_virt(ahci_devs[0])))->BAR5= %#018lx",((struct pci_device_structure_general_device_t *)(ahci_devs[0]))->BAR5);
|
||||
kdebug("phys_2_virt(ahci_devs[0])= %#018lx", (ahci_devs[0]));
|
||||
kdebug("((struct pci_device_structure_general_device_t *)phys_2_virt(ahci_devs[0])))->BAR5= %#018lx", ((struct pci_device_structure_general_device_t *)(ahci_devs[0]))->BAR5);
|
||||
uint32_t bar5 = ((struct pci_device_structure_general_device_t *)(ahci_devs[0]))->BAR5;
|
||||
|
||||
mm_map_phys_addr(AHCI_MAPPING_BASE, (ul)(bar5) & PAGE_2M_MASK, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
|
||||
mm_map_phys_addr(AHCI_MAPPING_BASE, (ul)(bar5)&PAGE_2M_MASK, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
|
||||
kdebug("ABAR mapped!");
|
||||
for (int i = 0; i < count_ahci_devices; ++i)
|
||||
for (int i = 0; i < count_ahci_devices; ++i)
|
||||
{
|
||||
// kdebug("[%d] class_code=%d, sub_class=%d, progIF=%d, ABAR=%#010lx", i, ahci_devs[i]->Class_code, ahci_devs[i]->SubClass, ahci_devs[i]->ProgIF, ((struct pci_device_structure_general_device_t *)(ahci_devs[i]))->BAR5);
|
||||
// 赋值HBA_MEM结构体
|
||||
@ -54,10 +58,10 @@ void ahci_init()
|
||||
kdebug("ahci_port_base_vaddr=%#018lx", ahci_port_base_vaddr);
|
||||
ahci_probe_port(0);
|
||||
port_rebase(&ahci_devices[0].hba_mem->ports[0], 0);
|
||||
|
||||
|
||||
// 初始化请求队列
|
||||
ahci_req_queue.in_service = NULL;
|
||||
list_init(&(ahci_req_queue.queue_list));
|
||||
wait_queue_init(&ahci_req_queue.wait_queue_list, NULL);
|
||||
ahci_req_queue.request_count = 0;
|
||||
kinfo("AHCI initialized.");
|
||||
}
|
||||
@ -278,6 +282,8 @@ static bool ahci_read(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_t
|
||||
kdebug("slot=%d", slot);
|
||||
port->ci = 1 << slot; // Issue command
|
||||
|
||||
sched_cfs();
|
||||
int retval = AHCI_SUCCESS;
|
||||
// Wait for completion
|
||||
while (1)
|
||||
{
|
||||
@ -288,7 +294,8 @@ static bool ahci_read(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_t
|
||||
if (port->is & HBA_PxIS_TFES) // Task file error
|
||||
{
|
||||
kerror("Read disk error");
|
||||
return E_TASK_FILE_ERROR;
|
||||
retval = E_TASK_FILE_ERROR;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
@ -296,10 +303,10 @@ static bool ahci_read(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_t
|
||||
if (port->is & HBA_PxIS_TFES)
|
||||
{
|
||||
kerror("Read disk error");
|
||||
return E_TASK_FILE_ERROR;
|
||||
retval = E_TASK_FILE_ERROR;
|
||||
}
|
||||
|
||||
return AHCI_SUCCESS;
|
||||
enter_syscall_int(SYS_AHCI_END_REQ, 0, 0, 0, 0, 0, 0, 0, 0);
|
||||
return retval;
|
||||
}
|
||||
|
||||
static bool ahci_write(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_t count,
|
||||
@ -352,6 +359,10 @@ static bool ahci_write(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_
|
||||
cmdfis->counth = count >> 8;
|
||||
// printk("[slot]{%d}", slot);
|
||||
port->ci = 1; // Issue command
|
||||
|
||||
sched_cfs();
|
||||
int retval = AHCI_SUCCESS;
|
||||
|
||||
while (1)
|
||||
{
|
||||
// In some longer duration reads, it may be helpful to spin on the DPS bit
|
||||
@ -361,16 +372,18 @@ static bool ahci_write(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_
|
||||
if (port->is & HBA_PxIS_TFES)
|
||||
{ // Task file error
|
||||
kerror("Write disk error");
|
||||
return E_TASK_FILE_ERROR;
|
||||
retval = E_TASK_FILE_ERROR;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (port->is & HBA_PxIS_TFES)
|
||||
{
|
||||
kerror("Write disk error");
|
||||
return E_TASK_FILE_ERROR;
|
||||
retval = E_TASK_FILE_ERROR;
|
||||
}
|
||||
|
||||
return AHCI_SUCCESS;
|
||||
|
||||
enter_syscall_int(SYS_AHCI_END_REQ, 0, 0, 0, 0, 0, 0, 0, 0);
|
||||
return retval;
|
||||
}
|
||||
|
||||
// Find a free command list slot
|
||||
@ -410,32 +423,33 @@ long ahci_close()
|
||||
* @param port_num ahci控制器端口号
|
||||
* @return struct block_device_request_packet*
|
||||
*/
|
||||
static struct block_device_request_packet *ahci_make_request(long cmd, uint64_t base_addr, uint64_t count, uint64_t buffer, uint8_t ahci_ctrl_num, uint8_t port_num)
|
||||
static struct ahci_request_packet_t *ahci_make_request(long cmd, uint64_t base_addr, uint64_t count, uint64_t buffer, uint8_t ahci_ctrl_num, uint8_t port_num)
|
||||
{
|
||||
struct block_device_request_packet *pack = (struct block_device_request_packet *)kmalloc(sizeof(struct block_device_request_packet), 0);
|
||||
struct ahci_request_packet_t *pack = (struct ahci_request_packet_t *)kmalloc(sizeof(struct ahci_request_packet_t), 0);
|
||||
|
||||
list_init(&pack->list);
|
||||
wait_queue_init(&pack->blk_pak.wait_queue, current_pcb);
|
||||
pack->blk_pak.device_type = BLK_TYPE_AHCI;
|
||||
|
||||
// 由于ahci不需要中断即可读取磁盘，因此end handler为空
|
||||
switch (cmd)
|
||||
{
|
||||
case ATA_CMD_READ_DMA_EXT:
|
||||
pack->end_handler = NULL;
|
||||
pack->cmd = ATA_CMD_READ_DMA_EXT;
|
||||
pack->blk_pak.end_handler = NULL;
|
||||
pack->blk_pak.cmd = ATA_CMD_READ_DMA_EXT;
|
||||
break;
|
||||
case ATA_CMD_WRITE_DMA_EXT:
|
||||
pack->end_handler = NULL;
|
||||
pack->cmd = ATA_CMD_WRITE_DMA_EXT;
|
||||
pack->blk_pak.end_handler = NULL;
|
||||
pack->blk_pak.cmd = ATA_CMD_WRITE_DMA_EXT;
|
||||
break;
|
||||
default:
|
||||
pack->end_handler = NULL;
|
||||
pack->cmd = cmd;
|
||||
pack->blk_pak.end_handler = NULL;
|
||||
pack->blk_pak.cmd = cmd;
|
||||
break;
|
||||
}
|
||||
|
||||
pack->LBA_start = base_addr;
|
||||
pack->count = count;
|
||||
pack->buffer_vaddr = buffer;
|
||||
pack->blk_pak.LBA_start = base_addr;
|
||||
pack->blk_pak.count = count;
|
||||
pack->blk_pak.buffer_vaddr = buffer;
|
||||
|
||||
pack->ahci_ctrl_num = ahci_ctrl_num;
|
||||
pack->port_num = port_num;
|
||||
@ -446,8 +460,10 @@ static struct block_device_request_packet *ahci_make_request(long cmd, uint64_t
|
||||
* @brief 结束磁盘请求
|
||||
*
|
||||
*/
|
||||
static void ahci_end_request()
|
||||
void ahci_end_request()
|
||||
{
|
||||
ahci_req_queue.in_service->wait_queue.pcb->state = PROC_RUNNING;
|
||||
ahci_req_queue.in_service->wait_queue.pcb->flags |= PROC_NEED_SCHED;
|
||||
kfree((uint64_t *)ahci_req_queue.in_service);
|
||||
ahci_req_queue.in_service = NULL;
|
||||
|
||||
@ -458,27 +474,31 @@ static void ahci_end_request()
|
||||
|
||||
static long ahci_query_disk()
|
||||
{
|
||||
struct block_device_request_packet *pack = container_of(list_next(&ahci_req_queue.queue_list), struct block_device_request_packet, list);
|
||||
ahci_req_queue.in_service = pack;
|
||||
list_del(&(ahci_req_queue.in_service->list));
|
||||
wait_queue_node_t *wait_queue_tmp = container_of(list_next(&ahci_req_queue.wait_queue_list.wait_list), wait_queue_node_t, wait_list);
|
||||
struct ahci_request_packet_t *pack = (struct ahci_request_packet_t *)container_of(wait_queue_tmp, struct block_device_request_packet, wait_queue);
|
||||
|
||||
ahci_req_queue.in_service = (struct block_device_request_packet *)pack;
|
||||
list_del(&(ahci_req_queue.in_service->wait_queue.wait_list));
|
||||
--ahci_req_queue.request_count;
|
||||
|
||||
long ret_val;
|
||||
|
||||
switch (pack->cmd)
|
||||
|
||||
switch (pack->blk_pak.cmd)
|
||||
{
|
||||
case ATA_CMD_READ_DMA_EXT:
|
||||
ret_val = ahci_read(&(ahci_devices[pack->ahci_ctrl_num].hba_mem->ports[pack->port_num]), pack->LBA_start & 0xFFFFFFFF, ((pack->LBA_start) >> 32) & 0xFFFFFFFF, pack->count, pack->buffer_vaddr);
|
||||
ret_val = ahci_read(&(ahci_devices[pack->ahci_ctrl_num].hba_mem->ports[pack->port_num]), pack->blk_pak.LBA_start & 0xFFFFFFFF, ((pack->blk_pak.LBA_start) >> 32) & 0xFFFFFFFF, pack->blk_pak.count, pack->blk_pak.buffer_vaddr);
|
||||
break;
|
||||
case ATA_CMD_WRITE_DMA_EXT:
|
||||
ret_val = ahci_write(&(ahci_devices[pack->ahci_ctrl_num].hba_mem->ports[pack->port_num]), pack->LBA_start & 0xFFFFFFFF, ((pack->LBA_start) >> 32) & 0xFFFFFFFF, pack->count, pack->buffer_vaddr);
|
||||
ret_val = ahci_write(&(ahci_devices[pack->ahci_ctrl_num].hba_mem->ports[pack->port_num]), pack->blk_pak.LBA_start & 0xFFFFFFFF, ((pack->blk_pak.LBA_start) >> 32) & 0xFFFFFFFF, pack->blk_pak.count, pack->blk_pak.buffer_vaddr);
|
||||
break;
|
||||
default:
|
||||
kerror("Unsupport ahci command: %#05lx", pack->cmd);
|
||||
kerror("Unsupport ahci command: %#05lx", pack->blk_pak.cmd);
|
||||
ret_val = E_UNSUPPORTED_CMD;
|
||||
break;
|
||||
}
|
||||
ahci_end_request();
|
||||
|
||||
// ahci_end_request();
|
||||
return ret_val;
|
||||
}
|
||||
|
||||
@ -487,9 +507,9 @@ static long ahci_query_disk()
|
||||
*
|
||||
* @param pack
|
||||
*/
|
||||
static void ahci_submit(struct block_device_request_packet *pack)
|
||||
static void ahci_submit(struct ahci_request_packet_t *pack)
|
||||
{
|
||||
list_append(&(ahci_req_queue.queue_list), &(pack->list));
|
||||
list_append(&(ahci_req_queue.wait_queue_list.wait_list), &(pack->blk_pak.wait_queue.wait_list));
|
||||
++ahci_req_queue.request_count;
|
||||
|
||||
if (ahci_req_queue.in_service == NULL) // 当前没有正在请求的io包，立即执行磁盘请求
|
||||
@ -509,7 +529,7 @@ static void ahci_submit(struct block_device_request_packet *pack)
|
||||
*/
|
||||
static long ahci_transfer(long cmd, uint64_t base_addr, uint64_t count, uint64_t buf, uint8_t ahci_ctrl_num, uint8_t port_num)
|
||||
{
|
||||
struct block_device_request_packet *pack = NULL;
|
||||
struct ahci_request_packet_t *pack = NULL;
|
||||
|
||||
if (cmd == ATA_CMD_READ_DMA_EXT || cmd == ATA_CMD_WRITE_DMA_EXT)
|
||||
{
|
||||
|
||||
@ -6,16 +6,16 @@
|
||||
|
||||
/**
|
||||
* @todo 加入io调度器（当操作系统实现了多进程之后要加入这个）
|
||||
*
|
||||
*
|
||||
*/
|
||||
#define AHCI_MAPPING_BASE SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE+AHCI_MAPPING_OFFSET
|
||||
#define AHCI_MAPPING_BASE SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE + AHCI_MAPPING_OFFSET
|
||||
|
||||
#define MAX_AHCI_DEVICES 100
|
||||
|
||||
#define HBA_PxCMD_ST 0x0001
|
||||
#define HBA_PxCMD_FRE 0x0010
|
||||
#define HBA_PxCMD_FR 0x4000
|
||||
#define HBA_PxCMD_CR 0x8000
|
||||
#define HBA_PxCMD_ST 0x0001
|
||||
#define HBA_PxCMD_FRE 0x0010
|
||||
#define HBA_PxCMD_FR 0x4000
|
||||
#define HBA_PxCMD_CR 0x8000
|
||||
|
||||
#define ATA_DEV_BUSY 0x80
|
||||
#define ATA_DEV_DRQ 0x08
|
||||
@ -23,11 +23,11 @@
|
||||
#define ATA_CMD_READ_DMA_EXT 0x25
|
||||
#define ATA_CMD_WRITE_DMA_EXT 0x30
|
||||
|
||||
#define HBA_PxIS_TFES (1 << 30) /* TFES - Task File Error Status */
|
||||
#define HBA_PxIS_TFES (1 << 30) /* TFES - Task File Error Status */
|
||||
|
||||
#define AHCI_SUCCESS 0 // 请求成功
|
||||
#define E_NOEMPTYSLOT 1 // 没有空闲的slot
|
||||
#define E_PORT_HUNG 2 // 端口被挂起
|
||||
#define AHCI_SUCCESS 0 // 请求成功
|
||||
#define E_NOEMPTYSLOT 1 // 没有空闲的slot
|
||||
#define E_PORT_HUNG 2 // 端口被挂起
|
||||
#define E_TASK_FILE_ERROR 3 // 任务文件错误
|
||||
#define E_UNSUPPORTED_CMD 4 // 不支持的命令
|
||||
|
||||
@ -210,169 +210,164 @@ typedef struct tagFIS_DMA_SETUP
|
||||
|
||||
typedef volatile struct tagHBA_PORT
|
||||
{
|
||||
uint64_t clb; // 0x00, command list base address, 1K-byte aligned
|
||||
uint64_t fb; // 0x08, FIS base address, 256-byte aligned
|
||||
uint32_t is; // 0x10, interrupt status
|
||||
uint32_t ie; // 0x14, interrupt enable
|
||||
uint32_t cmd; // 0x18, command and status
|
||||
uint32_t rsv0; // 0x1C, Reserved
|
||||
uint32_t tfd; // 0x20, task file data
|
||||
uint32_t sig; // 0x24, signature
|
||||
uint32_t ssts; // 0x28, SATA status (SCR0:SStatus)
|
||||
uint32_t sctl; // 0x2C, SATA control (SCR2:SControl)
|
||||
uint32_t serr; // 0x30, SATA error (SCR1:SError)
|
||||
uint32_t sact; // 0x34, SATA active (SCR3:SActive)
|
||||
uint32_t ci; // 0x38, command issue
|
||||
uint32_t sntf; // 0x3C, SATA notification (SCR4:SNotification)
|
||||
uint32_t fbs; // 0x40, FIS-based switch control
|
||||
uint32_t rsv1[11]; // 0x44 ~ 0x6F, Reserved
|
||||
uint32_t vendor[4]; // 0x70 ~ 0x7F, vendor specific
|
||||
uint64_t clb; // 0x00, command list base address, 1K-byte aligned
|
||||
uint64_t fb; // 0x08, FIS base address, 256-byte aligned
|
||||
uint32_t is; // 0x10, interrupt status
|
||||
uint32_t ie; // 0x14, interrupt enable
|
||||
uint32_t cmd; // 0x18, command and status
|
||||
uint32_t rsv0; // 0x1C, Reserved
|
||||
uint32_t tfd; // 0x20, task file data
|
||||
uint32_t sig; // 0x24, signature
|
||||
uint32_t ssts; // 0x28, SATA status (SCR0:SStatus)
|
||||
uint32_t sctl; // 0x2C, SATA control (SCR2:SControl)
|
||||
uint32_t serr; // 0x30, SATA error (SCR1:SError)
|
||||
uint32_t sact; // 0x34, SATA active (SCR3:SActive)
|
||||
uint32_t ci; // 0x38, command issue
|
||||
uint32_t sntf; // 0x3C, SATA notification (SCR4:SNotification)
|
||||
uint32_t fbs; // 0x40, FIS-based switch control
|
||||
uint32_t rsv1[11]; // 0x44 ~ 0x6F, Reserved
|
||||
uint32_t vendor[4]; // 0x70 ~ 0x7F, vendor specific
|
||||
} HBA_PORT;
|
||||
typedef volatile struct tagHBA_MEM
|
||||
{
|
||||
// 0x00 - 0x2B, Generic Host Control
|
||||
uint32_t cap; // 0x00, Host capability
|
||||
uint32_t ghc; // 0x04, Global host control
|
||||
uint32_t is; // 0x08, Interrupt status
|
||||
uint32_t pi; // 0x0C, Port implemented
|
||||
uint32_t vs; // 0x10, Version
|
||||
uint32_t ccc_ctl; // 0x14, Command completion coalescing control
|
||||
uint32_t ccc_pts; // 0x18, Command completion coalescing ports
|
||||
uint32_t em_loc; // 0x1C, Enclosure management location
|
||||
uint32_t em_ctl; // 0x20, Enclosure management control
|
||||
uint32_t cap2; // 0x24, Host capabilities extended
|
||||
uint32_t bohc; // 0x28, BIOS/OS handoff control and status
|
||||
|
||||
// 0x2C - 0x9F, Reserved
|
||||
uint8_t rsv[0xA0-0x2C];
|
||||
|
||||
// 0xA0 - 0xFF, Vendor specific registers
|
||||
uint8_t vendor[0x100-0xA0];
|
||||
|
||||
// 0x100 - 0x10FF, Port control registers
|
||||
HBA_PORT ports[32]; // 1 ~ 32
|
||||
// 0x00 - 0x2B, Generic Host Control
|
||||
uint32_t cap; // 0x00, Host capability
|
||||
uint32_t ghc; // 0x04, Global host control
|
||||
uint32_t is; // 0x08, Interrupt status
|
||||
uint32_t pi; // 0x0C, Port implemented
|
||||
uint32_t vs; // 0x10, Version
|
||||
uint32_t ccc_ctl; // 0x14, Command completion coalescing control
|
||||
uint32_t ccc_pts; // 0x18, Command completion coalescing ports
|
||||
uint32_t em_loc; // 0x1C, Enclosure management location
|
||||
uint32_t em_ctl; // 0x20, Enclosure management control
|
||||
uint32_t cap2; // 0x24, Host capabilities extended
|
||||
uint32_t bohc; // 0x28, BIOS/OS handoff control and status
|
||||
|
||||
// 0x2C - 0x9F, Reserved
|
||||
uint8_t rsv[0xA0 - 0x2C];
|
||||
|
||||
// 0xA0 - 0xFF, Vendor specific registers
|
||||
uint8_t vendor[0x100 - 0xA0];
|
||||
|
||||
// 0x100 - 0x10FF, Port control registers
|
||||
HBA_PORT ports[32]; // 1 ~ 32
|
||||
} HBA_MEM;
|
||||
|
||||
|
||||
// There are four kinds of FIS which may be sent to the host by the device as indicated in the following structure declaration.
|
||||
//
|
||||
//
|
||||
typedef volatile struct tagHBA_FIS
|
||||
{
|
||||
// 0x00
|
||||
FIS_DMA_SETUP dsfis; // DMA Setup FIS
|
||||
uint8_t pad0[4];
|
||||
|
||||
// 0x20
|
||||
FIS_PIO_SETUP psfis; // PIO Setup FIS
|
||||
uint8_t pad1[12];
|
||||
|
||||
// 0x40
|
||||
FIS_REG_D2H rfis; // Register – Device to Host FIS
|
||||
uint8_t pad2[4];
|
||||
|
||||
// 0x58
|
||||
//FIS_DEV_BITS sdbfis; // Set Device Bit FIS
|
||||
|
||||
// 0x60
|
||||
uint8_t ufis[64];
|
||||
|
||||
// 0xA0
|
||||
uint8_t rsv[0x100-0xA0];
|
||||
// 0x00
|
||||
FIS_DMA_SETUP dsfis; // DMA Setup FIS
|
||||
uint8_t pad0[4];
|
||||
|
||||
// 0x20
|
||||
FIS_PIO_SETUP psfis; // PIO Setup FIS
|
||||
uint8_t pad1[12];
|
||||
|
||||
// 0x40
|
||||
FIS_REG_D2H rfis; // Register – Device to Host FIS
|
||||
uint8_t pad2[4];
|
||||
|
||||
// 0x58
|
||||
// FIS_DEV_BITS sdbfis; // Set Device Bit FIS
|
||||
|
||||
// 0x60
|
||||
uint8_t ufis[64];
|
||||
|
||||
// 0xA0
|
||||
uint8_t rsv[0x100 - 0xA0];
|
||||
} HBA_FIS;
|
||||
|
||||
typedef struct tagHBA_CMD_HEADER
|
||||
{
|
||||
// DW0
|
||||
uint8_t cfl:5; // Command FIS length in DWORDS, 2 ~ 16
|
||||
uint8_t a:1; // ATAPI
|
||||
uint8_t w:1; // Write, 1: H2D, 0: D2H
|
||||
uint8_t p:1; // Prefetchable
|
||||
|
||||
uint8_t r:1; // Reset
|
||||
uint8_t b:1; // BIST
|
||||
uint8_t c:1; // Clear busy upon R_OK
|
||||
uint8_t rsv0:1; // Reserved
|
||||
uint8_t pmp:4; // Port multiplier port
|
||||
|
||||
uint16_t prdtl; // Physical region descriptor table length in entries
|
||||
|
||||
// DW1
|
||||
volatile
|
||||
uint32_t prdbc; // Physical region descriptor byte count transferred
|
||||
|
||||
// DW2, 3
|
||||
uint64_t ctba; // Command table descriptor base address
|
||||
|
||||
// DW4 - 7
|
||||
uint32_t rsv1[4]; // Reserved
|
||||
// DW0
|
||||
uint8_t cfl : 5; // Command FIS length in DWORDS, 2 ~ 16
|
||||
uint8_t a : 1; // ATAPI
|
||||
uint8_t w : 1; // Write, 1: H2D, 0: D2H
|
||||
uint8_t p : 1; // Prefetchable
|
||||
|
||||
uint8_t r : 1; // Reset
|
||||
uint8_t b : 1; // BIST
|
||||
uint8_t c : 1; // Clear busy upon R_OK
|
||||
uint8_t rsv0 : 1; // Reserved
|
||||
uint8_t pmp : 4; // Port multiplier port
|
||||
|
||||
uint16_t prdtl; // Physical region descriptor table length in entries
|
||||
|
||||
// DW1
|
||||
volatile uint32_t prdbc; // Physical region descriptor byte count transferred
|
||||
|
||||
// DW2, 3
|
||||
uint64_t ctba; // Command table descriptor base address
|
||||
|
||||
// DW4 - 7
|
||||
uint32_t rsv1[4]; // Reserved
|
||||
} HBA_CMD_HEADER;
|
||||
|
||||
typedef struct tagHBA_PRDT_ENTRY
|
||||
{
|
||||
uint64_t dba; // Data base address
|
||||
uint32_t rsv0; // Reserved
|
||||
|
||||
// DW3
|
||||
uint32_t dbc:22; // Byte count, 4M max
|
||||
uint32_t rsv1:9; // Reserved
|
||||
uint32_t i:1; // Interrupt on completion
|
||||
} HBA_PRDT_ENTRY;
|
||||
uint64_t dba; // Data base address
|
||||
uint32_t rsv0; // Reserved
|
||||
|
||||
// DW3
|
||||
uint32_t dbc : 22; // Byte count, 4M max
|
||||
uint32_t rsv1 : 9; // Reserved
|
||||
uint32_t i : 1; // Interrupt on completion
|
||||
} HBA_PRDT_ENTRY;
|
||||
|
||||
typedef struct tagHBA_CMD_TBL
|
||||
{
|
||||
// 0x00
|
||||
uint8_t cfis[64]; // Command FIS
|
||||
|
||||
// 0x40
|
||||
uint8_t acmd[16]; // ATAPI command, 12 or 16 bytes
|
||||
|
||||
// 0x50
|
||||
uint8_t rsv[48]; // Reserved
|
||||
|
||||
// 0x80
|
||||
HBA_PRDT_ENTRY prdt_entry[1]; // Physical region descriptor table entries, 0 ~ 65535
|
||||
// 0x00
|
||||
uint8_t cfis[64]; // Command FIS
|
||||
|
||||
// 0x40
|
||||
uint8_t acmd[16]; // ATAPI command, 12 or 16 bytes
|
||||
|
||||
// 0x50
|
||||
uint8_t rsv[48]; // Reserved
|
||||
|
||||
// 0x80
|
||||
HBA_PRDT_ENTRY prdt_entry[1]; // Physical region descriptor table entries, 0 ~ 65535
|
||||
} HBA_CMD_TBL;
|
||||
|
||||
struct ahci_device_t
|
||||
{
|
||||
uint32_t type; // 设备类型
|
||||
struct pci_device_structure_header_t * dev_struct;
|
||||
HBA_MEM * hba_mem;
|
||||
}ahci_devices[MAX_AHCI_DEVICES];
|
||||
uint32_t type; // 设备类型
|
||||
struct pci_device_structure_header_t *dev_struct;
|
||||
HBA_MEM *hba_mem;
|
||||
} ahci_devices[MAX_AHCI_DEVICES];
|
||||
|
||||
#define SATA_SIG_ATA 0x00000101 // SATA drive
|
||||
#define SATA_SIG_ATAPI 0xEB140101 // SATAPI drive
|
||||
#define SATA_SIG_SEMB 0xC33C0101 // Enclosure management bridge
|
||||
#define SATA_SIG_PM 0x96690101 // Port multiplier
|
||||
|
||||
#define SATA_SIG_ATA 0x00000101 // SATA drive
|
||||
#define SATA_SIG_ATAPI 0xEB140101 // SATAPI drive
|
||||
#define SATA_SIG_SEMB 0xC33C0101 // Enclosure management bridge
|
||||
#define SATA_SIG_PM 0x96690101 // Port multiplier
|
||||
|
||||
#define AHCI_DEV_NULL 0
|
||||
#define AHCI_DEV_SATA 1
|
||||
#define AHCI_DEV_SEMB 2
|
||||
#define AHCI_DEV_PM 3
|
||||
#define AHCI_DEV_SATAPI 4
|
||||
|
||||
|
||||
#define HBA_PORT_IPM_ACTIVE 1
|
||||
#define HBA_PORT_DET_PRESENT 3
|
||||
|
||||
|
||||
|
||||
struct block_device_request_queue ahci_req_queue;
|
||||
|
||||
|
||||
|
||||
|
||||
struct ahci_request_packet_t
|
||||
{
|
||||
struct block_device_request_packet blk_pak; // 块设备请求包
|
||||
uint8_t ahci_ctrl_num; // ahci控制器号， 默认应为0
|
||||
uint8_t port_num; // ahci的设备端口号
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 初始化ahci模块
|
||||
*
|
||||
*
|
||||
*/
|
||||
void ahci_init();
|
||||
|
||||
/**
|
||||
* @brief 检测端口连接的设备的类型
|
||||
*
|
||||
*
|
||||
* @param device_num ahci设备号
|
||||
*/
|
||||
static void ahci_probe_port(const uint32_t device_num);
|
||||
@ -402,4 +397,6 @@ static bool ahci_read(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_t
|
||||
* @return false failed
|
||||
*/
|
||||
static bool ahci_write(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_t count,
|
||||
uint64_t buf);
|
||||
uint64_t buf);
|
||||
|
||||
void ahci_end_request();
|
||||
@ -2,7 +2,9 @@
|
||||
|
||||
#include "../../common/glib.h"
|
||||
#include "stdint.h"
|
||||
#include <process/semaphore.h>
|
||||
|
||||
#define BLK_TYPE_AHCI 0
|
||||
struct block_device_operation
|
||||
{
|
||||
long (*open)();
|
||||
@ -22,11 +24,10 @@ struct block_device_request_packet
|
||||
uint32_t count;
|
||||
uint64_t buffer_vaddr;
|
||||
|
||||
uint8_t ahci_ctrl_num; // ahci控制器号， 默认应为0
|
||||
uint8_t port_num; // ahci的设备端口号
|
||||
uint8_t device_type; // 0: ahci
|
||||
void (*end_handler)(ul num, ul arg);
|
||||
|
||||
struct List list;
|
||||
wait_queue_node_t wait_queue;
|
||||
};
|
||||
|
||||
/**
|
||||
@ -35,7 +36,7 @@ struct block_device_request_packet
|
||||
*/
|
||||
struct block_device_request_queue
|
||||
{
|
||||
struct List queue_list;
|
||||
wait_queue_node_t wait_queue_list;
|
||||
struct block_device_request_packet * in_service; // 正在请求的结点
|
||||
ul request_count;
|
||||
};
|
||||
@ -57,9 +57,11 @@ void HPET_handler(uint64_t number, uint64_t param, struct pt_regs *regs)
|
||||
case 0: // 定时器0中断
|
||||
++timer_jiffies;
|
||||
|
||||
/*
|
||||
// 将HEPT中断消息转发到ap:1处理器
|
||||
ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0xc8,
|
||||
ICR_APIC_FIXED, ICR_ALL_EXCLUDE_Self, true, 0);
|
||||
*/
|
||||
|
||||
// 若当前时间比定时任务的时间间隔大，则进入中断下半部
|
||||
if (container_of(list_next(&timer_func_head.list), struct timer_func_list_t, list)->expire_jiffies <= timer_jiffies)
|
||||
|
||||
@ -53,6 +53,7 @@ Restore_all:
|
||||
popq %rax
|
||||
addq $0x10, %rsp // 弹出变量FUNC和errcode
|
||||
|
||||
sti
|
||||
iretq
|
||||
|
||||
ret_from_exception:
|
||||
@ -169,6 +170,7 @@ ENTRY(ret_from_system_call)
|
||||
popq %rax
|
||||
addq $0x10, %rsp // 弹出变量FUNC和errcode
|
||||
|
||||
sti
|
||||
iretq
|
||||
|
||||
|
||||
|
||||
@ -80,6 +80,7 @@ extern void (*syscall_intr_table[1])(void);
|
||||
|
||||
|
||||
0x80 system call
|
||||
0x81 system interrupt 系统中断
|
||||
|
||||
150 ~ 200 Local APIC
|
||||
150 CMCI
|
||||
|
||||
@ -52,7 +52,7 @@ void do_softirq()
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
cli();
|
||||
}
|
||||
|
||||
void softirq_init()
|
||||
|
||||
@ -12,7 +12,7 @@ void do_divide_error(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_divide_error(0),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 1 #DB 调试异常
|
||||
@ -23,7 +23,7 @@ void do_debug(struct pt_regs *regs, unsigned long error_code)
|
||||
printk(" ] do_debug(1),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 2 不可屏蔽中断
|
||||
@ -35,7 +35,7 @@ void do_nmi(struct pt_regs *regs, unsigned long error_code)
|
||||
printk(" ] do_nmi(2),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 3 #BP 断点异常
|
||||
@ -47,7 +47,7 @@ void do_int3(struct pt_regs *regs, unsigned long error_code)
|
||||
printk(" ] do_int3(3),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 4 #OF 溢出异常
|
||||
@ -59,7 +59,7 @@ void do_overflow(struct pt_regs *regs, unsigned long error_code)
|
||||
printk(" ] do_overflow(4),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 5 #BR 越界异常
|
||||
@ -69,7 +69,7 @@ void do_bounds(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_bounds(5),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 6 #UD 无效/未定义的机器码
|
||||
@ -79,7 +79,7 @@ void do_undefined_opcode(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_undefined_opcode(6),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 7 #NM 设备异常（FPU不存在）
|
||||
@ -89,7 +89,7 @@ void do_dev_not_avaliable(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_dev_not_avaliable(7),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 8 #DF 双重错误
|
||||
@ -101,7 +101,7 @@ void do_double_fault(struct pt_regs *regs, unsigned long error_code)
|
||||
printk(" ] do_double_fault(8),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 9 协处理器越界（保留）
|
||||
@ -111,7 +111,7 @@ void do_coprocessor_segment_overrun(struct pt_regs *regs, unsigned long error_co
|
||||
kerror("do_coprocessor_segment_overrun(9),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 10 #TS 无效的TSS段
|
||||
@ -142,7 +142,7 @@ void do_invalid_TSS(struct pt_regs *regs, unsigned long error_code)
|
||||
printk("\n");
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 11 #NP 段不存在
|
||||
@ -152,7 +152,7 @@ void do_segment_not_exists(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_segment_not_exists(11),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 12 #SS SS段错误
|
||||
@ -162,7 +162,7 @@ void do_stack_segment_fault(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_stack_segment_fault(12),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 13 #GP 通用保护性异常
|
||||
@ -187,7 +187,7 @@ void do_general_protection(struct pt_regs *regs, unsigned long error_code)
|
||||
|
||||
printk_color(RED, BLACK, "Segment Selector Index:%#010x\n", error_code & 0xfff8);
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 14 #PF 页故障
|
||||
@ -224,7 +224,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long error_code)
|
||||
printk_color(RED,BLACK,"CR2:%#018lx\n",cr2);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 15 Intel保留，请勿使用
|
||||
@ -236,7 +236,7 @@ void do_x87_FPU_error(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_x87_FPU_error(16),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 17 #AC 对齐检测
|
||||
@ -246,7 +246,7 @@ void do_alignment_check(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_alignment_check(17),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 18 #MC 机器检测
|
||||
@ -256,7 +256,7 @@ void do_machine_check(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_machine_check(18),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 19 #XM SIMD浮点异常
|
||||
@ -266,7 +266,7 @@ void do_SIMD_exception(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_SIMD_exception(19),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 20 #VE 虚拟化异常
|
||||
@ -276,7 +276,7 @@ void do_virtualization_exception(struct pt_regs *regs, unsigned long error_code)
|
||||
kerror("do_virtualization_exception(20),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip, proc_current_cpu_id);
|
||||
|
||||
while (1)
|
||||
;
|
||||
hlt();
|
||||
}
|
||||
|
||||
// 21-21 Intel保留，请勿使用
|
||||
|
||||
@ -151,7 +151,9 @@ void system_initialize()
|
||||
// process_init();
|
||||
current_pcb->cpu_id = 0;
|
||||
current_pcb->preempt_count = 0;
|
||||
process_init();
|
||||
HPET_init();
|
||||
|
||||
}
|
||||
|
||||
//操作系统内核从这里开始执行
|
||||
@ -178,7 +180,7 @@ void Start_Kernel(void)
|
||||
|
||||
system_initialize();
|
||||
|
||||
/*
|
||||
|
||||
uint64_t buf[100];
|
||||
ahci_operation.transfer(ATA_CMD_READ_DMA_EXT, 0, 1, (uint64_t)&buf, 0, 0);
|
||||
kdebug("buf[0]=%#010lx",(uint32_t)buf[0]);
|
||||
@ -187,7 +189,7 @@ void Start_Kernel(void)
|
||||
|
||||
ahci_operation.transfer(ATA_CMD_READ_DMA_EXT, 0, 1, (uint64_t)&buf, 0, 0);
|
||||
kdebug("buf[0]=%#010lx",(uint32_t)buf[0]);
|
||||
*/
|
||||
|
||||
// show_welcome();
|
||||
// test_mm();
|
||||
|
||||
@ -216,7 +218,7 @@ void Start_Kernel(void)
|
||||
|
||||
// ipi_send_IPI(DEST_PHYSICAL, IDLE, ICR_LEVEL_DE_ASSERT, EDGE_TRIGGER, 0xc8, ICR_APIC_FIXED, ICR_No_Shorthand, true, 1); // 测试ipi
|
||||
|
||||
int last_sec = rtc_now.second;
|
||||
//int last_sec = rtc_now.second;
|
||||
/*
|
||||
while (1)
|
||||
{
|
||||
|
||||
@ -50,11 +50,11 @@ void sched_cfs_enqueue(struct process_control_block *pcb)
|
||||
*/
|
||||
void sched_cfs()
|
||||
{
|
||||
|
||||
|
||||
current_pcb->flags &= ~PROC_NEED_SCHED;
|
||||
struct process_control_block *proc = sched_cfs_dequeue();
|
||||
|
||||
if (current_pcb->virtual_runtime >= proc->virtual_runtime) // 当前进程运行时间大于了下一进程的运行时间，进行切换
|
||||
if (current_pcb->virtual_runtime >= proc->virtual_runtime || current_pcb->state != PROC_RUNNING) // 当前进程运行时间大于了下一进程的运行时间，进行切换
|
||||
{
|
||||
|
||||
if (current_pcb->state = PROC_RUNNING) // 本次切换由于时间片到期引发，则再次加入就绪队列，否则交由其它功能模块进行管理
|
||||
@ -107,8 +107,8 @@ void sched_cfs()
|
||||
*/
|
||||
void sched_update_jiffies()
|
||||
{
|
||||
if(current_pcb->cpu_id == 0)
|
||||
return;
|
||||
//if (current_pcb->cpu_id == 0)
|
||||
// return;
|
||||
switch (current_pcb->priority)
|
||||
{
|
||||
case 0:
|
||||
|
||||
@ -153,8 +153,13 @@ void smp_ap_start()
|
||||
current_pcb->preempt_count = 0;
|
||||
sti();
|
||||
|
||||
while(1)
|
||||
hlt();
|
||||
|
||||
/*
|
||||
if (proc_current_cpu_id == 1)
|
||||
process_init();
|
||||
*/
|
||||
while (1)
|
||||
{
|
||||
printk_color(BLACK, WHITE, "CPU:%d IDLE process.\n", proc_current_cpu_id);
|
||||
|
||||
@ -2,6 +2,7 @@
|
||||
#include "../process/process.h"
|
||||
#include <exception/gate.h>
|
||||
#include <exception/irq.h>
|
||||
#include<driver/disk/ahci/ahci.h>
|
||||
|
||||
// 导出系统调用入口函数，定义在entry.S中
|
||||
extern void system_call(void);
|
||||
@ -85,6 +86,12 @@ ul sys_printf(struct pt_regs *regs)
|
||||
return 0;
|
||||
}
|
||||
|
||||
ul sys_ahci_end_req(struct pt_regs *regs)
|
||||
{
|
||||
ahci_end_request();
|
||||
return 0;
|
||||
}
|
||||
|
||||
// 系统调用的内核入口程序
|
||||
void do_syscall_int(struct pt_regs *regs, unsigned long error_code)
|
||||
{
|
||||
|
||||
@ -5,7 +5,7 @@
|
||||
#include "../process/ptrace.h"
|
||||
|
||||
// 定义最大系统调用数量
|
||||
#define MAX_SYSTEM_CALL_NUM 128
|
||||
#define MAX_SYSTEM_CALL_NUM 256
|
||||
|
||||
#define ESYSCALL_NOT_EXISTS 1
|
||||
|
||||
@ -53,6 +53,8 @@ ul system_call_not_exists(struct pt_regs *regs)
|
||||
*/
|
||||
ul sys_printf(struct pt_regs *regs);
|
||||
|
||||
ul sys_ahci_end_req(struct pt_regs *regs);
|
||||
|
||||
// 系统调用的内核入口程序
|
||||
void do_syscall_int(struct pt_regs *regs, unsigned long error_code);
|
||||
|
||||
@ -60,4 +62,5 @@ system_call_t system_call_table[MAX_SYSTEM_CALL_NUM] =
|
||||
{
|
||||
[0] = system_call_not_exists,
|
||||
[1] = sys_printf,
|
||||
[2 ... MAX_SYSTEM_CALL_NUM - 1] = system_call_not_exists};
|
||||
[2 ... 254] = system_call_not_exists,
|
||||
[255] = sys_ahci_end_req};
|
||||
|
||||
@ -1,4 +1,15 @@
|
||||
#pragma once
|
||||
|
||||
/**
|
||||
* 系统调用说明
|
||||
* 1 printf
|
||||
*
|
||||
*
|
||||
* 255 AHCI end_request
|
||||
*
|
||||
*/
|
||||
|
||||
#define SYS_NOT_EXISTS 0
|
||||
#define SYS_PRINTF 1
|
||||
#define SYS_PRINTF 1
|
||||
|
||||
#define SYS_AHCI_END_REQ 255
|
||||
Loading…
x
Reference in New Issue
Block a user