pgd_t trampoline_pg_dir[PTRS_PER_PGD] __page_aligned_bss;
pte_t fixmap_pte[PTRS_PER_PTE] __page_aligned_bss;
-#define MAX_EARLY_MAPPING_SIZE SZ_128M
-
pgd_t early_pg_dir[PTRS_PER_PGD] __initdata __aligned(PAGE_SIZE);
void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot)
pmd_t trampoline_pmd[PTRS_PER_PMD] __page_aligned_bss;
pmd_t fixmap_pmd[PTRS_PER_PMD] __page_aligned_bss;
-
-#if MAX_EARLY_MAPPING_SIZE < PGDIR_SIZE
-#define NUM_EARLY_PMDS 1UL
-#else
-#define NUM_EARLY_PMDS (1UL + MAX_EARLY_MAPPING_SIZE / PGDIR_SIZE)
-#endif
-pmd_t early_pmd[PTRS_PER_PMD * NUM_EARLY_PMDS] __initdata __aligned(PAGE_SIZE);
+pmd_t early_pmd[PTRS_PER_PMD] __initdata __aligned(PAGE_SIZE);
pmd_t early_dtb_pmd[PTRS_PER_PMD] __initdata __aligned(PAGE_SIZE);
static pmd_t *__init get_pmd_virt_early(phys_addr_t pa)
static phys_addr_t __init alloc_pmd_early(uintptr_t va)
{
- uintptr_t pmd_num;
+ BUG_ON((va - PAGE_OFFSET) >> PGDIR_SHIFT);
- pmd_num = (va - PAGE_OFFSET) >> PGDIR_SHIFT;
- BUG_ON(pmd_num >= NUM_EARLY_PMDS);
- return (uintptr_t)&early_pmd[pmd_num * PTRS_PER_PMD];
+ return (uintptr_t)early_pmd;
}
static phys_addr_t __init alloc_pmd_fixmap(uintptr_t va)
uintptr_t va, pa, end_va;
uintptr_t load_pa = (uintptr_t)(&_start);
uintptr_t load_sz = (uintptr_t)(&_end) - load_pa;
- uintptr_t map_size = best_map_size(load_pa, MAX_EARLY_MAPPING_SIZE);
+ uintptr_t map_size;
#ifndef __PAGETABLE_PMD_FOLDED
pmd_t fix_bmap_spmd, fix_bmap_epmd;
#endif
* Enforce boot alignment requirements of RV32 and
* RV64 by only allowing PMD or PGD mappings.
*/
- BUG_ON(map_size == PAGE_SIZE);
+ map_size = PMD_SIZE;
/* Sanity check alignment and size */
BUG_ON((PAGE_OFFSET % PGDIR_SIZE) != 0);
BUG_ON((load_pa % map_size) != 0);
- BUG_ON(load_sz > MAX_EARLY_MAPPING_SIZE);
pt_ops.alloc_pte = alloc_pte_early;
pt_ops.get_pte_virt = get_pte_virt_early;