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ArmV8 support arch mmu intr clock

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This commit is contained in:
TXuian
2024-05-24 16:06:09 +08:00
parent c1e99c449a
commit 80f80b64f0
9 changed files with 99 additions and 162 deletions
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Ubiquitous/XiZi_AIoT/softkernel/memory/pagetable_level3.c
+33 -33
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@@ -44,7 +44,7 @@ uintptr_t* _page_walk(uintptr_t* pgdir, uintptr_t vaddr, bool alloc)
uintptr_t pde_attr = 0;
_p_pgtbl_mmu_access->MmuPdeAttr(&pde_attr);
uintptr_t* l2_pde_ptr = (uintptr_t*)&pgdir[vaddr >> LEVEL2_PDE_SHIFT];
uintptr_t* l2_pde_ptr = (uintptr_t*)&pgdir[(vaddr >> LEVEL2_PDE_SHIFT) & (NUM_LEVEL2_PDE - 1)];
uintptr_t* l3_pde_vaddr;
if (*l2_pde_ptr != 0) {
@@ -55,7 +55,7 @@ uintptr_t* _page_walk(uintptr_t* pgdir, uintptr_t vaddr, bool alloc)
return NULL;
}
memset(l3_pde_vaddr, 0, sizeof(uintptr_t) * NUM_LEVEL4_PTE);
memset(l3_pde_vaddr, 0, sizeof(uintptr_t) * NUM_LEVEL3_PDE);
*l2_pde_ptr = V2P(l3_pde_vaddr) | pde_attr;
}
@@ -79,38 +79,38 @@ uintptr_t* _page_walk(uintptr_t* pgdir, uintptr_t vaddr, bool alloc)
void _free_user_pgdir(struct TopLevelPageDirectory* pgdir)
{
uintptr_t low_bound = kern_virtmem_buddy.mem_start, high_bound = kern_virtmem_buddy.mem_end;
uintptr_t user_low_bound = user_phy_freemem_buddy.mem_start, user_high_bound = user_phy_freemem_buddy.mem_end;
uintptr_t end_idx = USER_MEM_TOP >> LEVEL2_PDE_SHIFT;
// uintptr_t low_bound = kern_virtmem_buddy.mem_start, high_bound = kern_virtmem_buddy.mem_end;
// uintptr_t user_low_bound = user_phy_freemem_buddy.mem_start, user_high_bound = user_phy_freemem_buddy.mem_end;
// uintptr_t end_idx = (USER_MEM_TOP >> LEVEL2_PDE_SHIFT) & (NUM_LEVEL2_PDE - 1);
for (uintptr_t l3_entry_idx = 0; l3_entry_idx < end_idx; l3_entry_idx++) {
// free each level3 page table
uintptr_t* l3_pde_paddr = (uintptr_t*)LEVEL3_PDE_ADDR(pgdir->pd_addr[l3_entry_idx]);
if (l3_pde_paddr != NULL) {
for (uintptr_t l4_entry_idx = 0; l4_entry_idx < NUM_LEVEL3_PDE; l4_entry_idx++) {
uintptr_t* l4_pte_paddr = (uintptr_t*)LEVEL4_PTE_ADDR(l3_pde_paddr[l4_entry_idx]);
if (l4_pte_paddr != NULL) {
for (uintptr_t page_entry_idx = 0; page_entry_idx < NUM_LEVEL4_PTE; page_entry_idx++) {
uintptr_t vaddr = (l3_entry_idx << LEVEL2_PDE_SHIFT) | (l4_entry_idx << LEVEL3_PDE_SHIFT) | (page_entry_idx << LEVEL4_PTE_SHIFT);
// for (uintptr_t l3_entry_idx = 0; l3_entry_idx < end_idx; l3_entry_idx++) {
// // free each level3 page table
// uintptr_t* l3_pde_paddr = (uintptr_t*)LEVEL3_PDE_ADDR(pgdir->pd_addr[l3_entry_idx]);
// if (l3_pde_paddr != NULL) {
// for (uintptr_t l4_entry_idx = 0; l4_entry_idx < NUM_LEVEL3_PDE; l4_entry_idx++) {
// uintptr_t* l4_pte_paddr = (uintptr_t*)LEVEL4_PTE_ADDR(l3_pde_paddr[l4_entry_idx]);
// if (l4_pte_paddr != NULL) {
// for (uintptr_t page_entry_idx = 0; page_entry_idx < NUM_LEVEL4_PTE; page_entry_idx++) {
// uintptr_t vaddr = (l3_entry_idx << LEVEL2_PDE_SHIFT) | (l4_entry_idx << LEVEL3_PDE_SHIFT) | (page_entry_idx << LEVEL4_PTE_SHIFT);
// get page paddr
uintptr_t* page_paddr = (uintptr_t*)ALIGNDOWN(((uintptr_t*)P2V(l4_pte_paddr))[page_entry_idx], PAGE_SIZE);
if (page_paddr != NULL) {
// Ensure the virtual address is not in the IPC address space
assert(vaddr < USER_IPC_SPACE_BASE || vaddr >= USER_IPC_SPACE_TOP);
// // get page paddr
// uintptr_t* page_paddr = (uintptr_t*)ALIGNDOWN(((uintptr_t*)P2V(l4_pte_paddr))[page_entry_idx], PAGE_SIZE);
// if (page_paddr != NULL) {
// // Ensure the virtual address is not in the IPC address space
// assert(vaddr < USER_IPC_SPACE_BASE || vaddr >= USER_IPC_SPACE_TOP);
if (LIKELY((uintptr_t)page_paddr >= low_bound && (uintptr_t)page_paddr < high_bound)) {
kfree(P2V(page_paddr));
} else if (LIKELY((uintptr_t)page_paddr >= user_low_bound && (uintptr_t)page_paddr < user_high_bound)) {
raw_free((char*)page_paddr);
}
}
}
kfree(P2V(l4_pte_paddr));
}
}
kfree(P2V(l3_pde_paddr));
}
}
kfree((char*)pgdir->pd_addr);
// if (LIKELY((uintptr_t)page_paddr >= low_bound && (uintptr_t)page_paddr < high_bound)) {
// kfree(P2V(page_paddr));
// } else if (LIKELY((uintptr_t)page_paddr >= user_low_bound && (uintptr_t)page_paddr < user_high_bound)) {
// raw_free((char*)page_paddr);
// }
// }
// }
// kfree(P2V(l4_pte_paddr));
// }
// }
// kfree(P2V(l3_pde_paddr));
// }
// }
// kfree((char*)pgdir->pd_addr);
}