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Implement uacpi_kernel_unmap

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Marvin
2026-10-18 21:13:29 +02:00
parent b6ffd2c8c6
commit 8c100af7e7
1 changed files with 9 additions and 2 deletions
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dev/acpi/uacpi_glue.c
+9 -2
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@@ -1,4 +1,5 @@
#include <zinnia/acpi.h> #include <zinnia/acpi.h>
#include <zinnia/alloc.h>
#include <zinnia/console.h> #include <zinnia/console.h>
#include <zinnia/init.h> #include <zinnia/init.h>
#include <zinnia/mmio.h> #include <zinnia/mmio.h>
@@ -28,14 +29,20 @@ void* uacpi_kernel_map(uacpi_phys_addr addr, uacpi_size len) {
return nullptr; return nullptr;
for (size_t i = 0; i < aligned_len; i += arch_mem_page_size()) { for (size_t i = 0; i < aligned_len; i += arch_mem_page_size()) {
pmap_map(&kernel_vma.pmap, vaddr + i, aligned_addr + i, PROT_READ | PROT_WRITE, CACHE_ANY); pmap_map(&kernel_vma.pmap, vaddr + i, aligned_addr + i, PTE_READ | PTE_WRITE, CACHE_ANY);
} }
return (void*)(vaddr + difference); return (void*)(vaddr + difference);
} }
void uacpi_kernel_unmap(void* addr, uacpi_size len) { void uacpi_kernel_unmap(void* addr, uacpi_size len) {
// TODO uintptr_t aligned_addr = ALIGN_DOWN((uintptr_t)addr, arch_mem_page_size());
uintptr_t difference = (uintptr_t)addr - aligned_addr;
size_t aligned_len = ALIGN_UP(len + difference, arch_mem_page_size());
for (size_t i = 0; i < aligned_len; i += arch_mem_page_size())
pmap_unmap(&kernel_vma.pmap, aligned_addr + i);
vm_free(aligned_addr, aligned_len);
} }
static enum log_level acpi_log_level(uacpi_log_level lvl) { static enum log_level acpi_log_level(uacpi_log_level lvl) {