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Support naive_mmap; Support get_tick in sys_state.

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tuyuyang
2024-07-01 00:47:10 +08:00
parent 99899900a1
commit 247541173f
7 changed files with 78 additions and 20 deletions
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20
Ubiquitous/XiZi_AIoT/softkernel/syscall/sys_mmap.c
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@@ -36,34 +36,36 @@ Modification:
#include "syscall.h"
#include "task.h"
int sys_mmap(uintptr_t vaddr, uintptr_t paddr, int len, int is_dev)
int sys_mmap(uintptr_t* vaddr, uintptr_t* paddr, int len, int is_dev)
{
struct Thread* cur_task = cur_cpu()->task;
assert(cur_task != NULL);
int true_len = ALIGNUP(len, PAGE_SIZE);
if (paddr != (uintptr_t)NULL) {
if (xizi_share_page_manager.task_map_pages(cur_task, vaddr, paddr, true_len / PAGE_SIZE, is_dev) == (uintptr_t)NULL) {
if (*paddr != (uintptr_t)NULL) {
if (xizi_share_page_manager.task_map_pages(cur_task, *vaddr, *paddr, true_len / PAGE_SIZE, is_dev) == (uintptr_t)NULL) {
return -1;
}
} else {
int load_len = 0;
uintptr_t load_vaddr = vaddr;
uintptr_t load_vaddr = *vaddr;
while (load_len < true_len) {
char* paddr = raw_alloc(PAGE_SIZE);
if (paddr == NULL) {
char* new_paddr = raw_alloc(PAGE_SIZE);
if (new_paddr == NULL) {
return -1;
}
if (xizi_share_page_manager.task_map_pages(cur_task, load_vaddr, (uintptr_t)paddr, 1, false) == (uintptr_t)NULL) {
raw_free(paddr);
if (xizi_share_page_manager.task_map_pages(cur_task, load_vaddr, (uintptr_t)new_paddr, 1, false) == (uintptr_t)NULL) {
raw_free(new_paddr);
return -1;
}
load_vaddr += PAGE_SIZE;
load_len += PAGE_SIZE;
*paddr = (uintptr_t)new_paddr;
}
}
cur_task->memspace->mem_size += true_len;
return vaddr + true_len;
*vaddr = *vaddr + true_len;
return 0;
}