ARM: 7059/1: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_*
PGDIR_SHIFT and PMD_SHIFT for the classic 2-level page table format have
the same value (21). This patch converts the PGDIR_* uses in the kernel
to the PMD_* equivalent so that LPAE builds can reuse the same code.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 594d677..36e983d 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -863,14 +863,14 @@
/*
* Clear out all the mappings below the kernel image.
*/
- for (addr = 0; addr < MODULES_VADDR; addr += PGDIR_SIZE)
+ for (addr = 0; addr < MODULES_VADDR; addr += PMD_SIZE)
pmd_clear(pmd_off_k(addr));
#ifdef CONFIG_XIP_KERNEL
/* The XIP kernel is mapped in the module area -- skip over it */
- addr = ((unsigned long)_etext + PGDIR_SIZE - 1) & PGDIR_MASK;
+ addr = ((unsigned long)_etext + PMD_SIZE - 1) & PMD_MASK;
#endif
- for ( ; addr < PAGE_OFFSET; addr += PGDIR_SIZE)
+ for ( ; addr < PAGE_OFFSET; addr += PMD_SIZE)
pmd_clear(pmd_off_k(addr));
/*
@@ -885,10 +885,12 @@
* memory bank, up to the end of the vmalloc region.
*/
for (addr = __phys_to_virt(end);
- addr < VMALLOC_END; addr += PGDIR_SIZE)
+ addr < VMALLOC_END; addr += PMD_SIZE)
pmd_clear(pmd_off_k(addr));
}
+#define SWAPPER_PG_DIR_SIZE (PTRS_PER_PGD * sizeof(pgd_t))
+
/*
* Reserve the special regions of memory
*/
@@ -898,7 +900,7 @@
* Reserve the page tables. These are already in use,
* and can only be in node 0.
*/
- memblock_reserve(__pa(swapper_pg_dir), PTRS_PER_PGD * sizeof(pgd_t));
+ memblock_reserve(__pa(swapper_pg_dir), SWAPPER_PG_DIR_SIZE);
#ifdef CONFIG_SA1111
/*
@@ -926,7 +928,7 @@
*/
vectors_page = early_alloc(PAGE_SIZE);
- for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE)
+ for (addr = VMALLOC_END; addr; addr += PMD_SIZE)
pmd_clear(pmd_off_k(addr));
/*