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27 lines
688 B
27 lines
688 B
#include <swap.h>
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#include <swapfs.h>
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#include <mmu.h>
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#include <fs.h>
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#include <ide.h>
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#include <pmm.h>
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#include <assert.h>
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void
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swapfs_init(void) {
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static_assert((PGSIZE % SECTSIZE) == 0);
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if (!ide_device_valid(SWAP_DEV_NO)) {
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panic("swap fs isn't available.\n");
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}
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max_swap_offset = ide_device_size(SWAP_DEV_NO) / (PGSIZE / SECTSIZE);
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}
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int
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swapfs_read(swap_entry_t entry, struct Page *page) {
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return ide_read_secs(SWAP_DEV_NO, swap_offset(entry) * PAGE_NSECT, page2kva(page), PAGE_NSECT);
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}
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int
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swapfs_write(swap_entry_t entry, struct Page *page) {
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return ide_write_secs(SWAP_DEV_NO, swap_offset(entry) * PAGE_NSECT, page2kva(page), PAGE_NSECT);
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}
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