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| author | Richard Qin <richard.qin.x@gmail.com> | 2026-01-01 15:04:47 +0800 |
|---|---|---|
| committer | Richard Qin <richard.qin.x@gmail.com> | 2026-01-01 15:04:47 +0800 |
| commit | 2dde56422dcfb94affee2baffc8d240ad16ad4b2 (patch) | |
| tree | aeee8a0dad24ceaca22585f773411e386c8019be /src/kernel/mm/pmm.cc | |
| parent | 0a6815b7143a8ffd0e09777b5fbd12098d8884c2 (diff) | |
| download | lume-2dde56422dcfb94affee2baffc8d240ad16ad4b2.tar.gz lume-2dde56422dcfb94affee2baffc8d240ad16ad4b2.tar.xz | |
dev(device): implement VirtIO
See dev log for detail
Diffstat (limited to 'src/kernel/mm/pmm.cc')
| -rw-r--r-- | src/kernel/mm/pmm.cc | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/src/kernel/mm/pmm.cc b/src/kernel/mm/pmm.cc index 09bd65b..3474a49 100644 --- a/src/kernel/mm/pmm.cc +++ b/src/kernel/mm/pmm.cc @@ -9,73 +9,6 @@ extern "C" char kernel_end[]; extern uint64 g_dtb_addr; -// namespace PMM -// { -// struct Run -// { -// struct Run *next; -// }; - -// struct -// { -// struct Run *freelist; -// } kmem; - -// inline uint64_t PGROUNDUP(uint64_t a) -// { -// return (a + PGSIZE - 1) & ~(PGSIZE - 1); -// } - -// void init() -// { -// uint64_t start = PGROUNDUP((uint64_t)kernel_end); - -// Drivers::uart_puts("PMM: Initializing from"); - -// for (uint64_t p = start; p + PGSIZE <= PHYSTOP; p += PGSIZE) -// { -// free_page((void *)p); -// } -// } - -// void free_page(void* pa) -// { -// struct Run *r; -// if (((uint64_t)pa % PGSIZE) != 0 || (uint64_t)pa < (uint64_t)kernel_end || (uint64_t)pa >= PHYSTOP) -// { -// Drivers::uart_puts("PMM: Error - Invalid free address\n"); -// return; -// } -// r = (struct Run*)pa; - -// r->next = kmem.freelist; -// kmem.freelist = r; - -// } - -// void* alloc_page() -// { -// struct Run* r; - -// r = kmem.freelist; -// if (r) -// { -// kmem.freelist = r->next; - -// uint64_t *p = (uint64_t *)r; -// for (int i = 0; i < PGSIZE / 8; i++) -// { -// p[i] = 0; -// } -// } -// else -// { -// Drivers::uart_puts("PMM: Out of memory!\n"); -// } -// return (void *)r; -// } -// } - namespace PMM { // Global metadata array pointer |