tjh.dev
-3
arch/parisc/mm/fixmap.c
-3
arch/parisc/mm/fixmap.c
+34
arch/parisc/mm/init.c
+34
arch/parisc/mm/init.c
···
669
PAGE_SIZE, PAGE_GATEWAY, 1);
670
}
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static void __init parisc_bootmem_free(void)
673
{
674
unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0, };
···
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setup_bootmem();
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pagetable_init();
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gateway_init();
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flush_cache_all_local(); /* start with known state */
720
flush_tlb_all_local(NULL);
721
···
669
PAGE_SIZE, PAGE_GATEWAY, 1);
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}
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672
+
static void __init fixmap_init(void)
673
+
{
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unsigned long addr = FIXMAP_START;
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unsigned long end = FIXMAP_START + FIXMAP_SIZE;
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pgd_t *pgd = pgd_offset_k(addr);
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p4d_t *p4d = p4d_offset(pgd, addr);
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pud_t *pud = pud_offset(p4d, addr);
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pmd_t *pmd;
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BUILD_BUG_ON(FIXMAP_SIZE > PMD_SIZE);
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#if CONFIG_PGTABLE_LEVELS == 3
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if (pud_none(*pud)) {
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pmd = memblock_alloc(PAGE_SIZE << PMD_TABLE_ORDER,
686
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PAGE_SIZE << PMD_TABLE_ORDER);
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if (!pmd)
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panic("fixmap: pmd allocation failed.\n");
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pud_populate(NULL, pud, pmd);
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}
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#endif
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+
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pmd = pmd_offset(pud, addr);
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do {
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pte_t *pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
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if (!pte)
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panic("fixmap: pte allocation failed.\n");
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pmd_populate_kernel(&init_mm, pmd, pte);
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+
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addr += PAGE_SIZE;
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+
} while (addr < end);
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}
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+
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static void __init parisc_bootmem_free(void)
706
{
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unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0, };
···
683
setup_bootmem();
684
pagetable_init();
685
gateway_init();
686
+
fixmap_init();
687
flush_cache_all_local(); /* start with known state */
688
flush_tlb_all_local(NULL);
689