Commit 103461a8 authored by Russell King's avatar Russell King Committed by Russell King

[ARM] Simplify setup_mm_for_reboot()

No point checking what CPU architecture level we have each time
within the loop, so precompute the base PMD flags outside the
loop.
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 08f4ffb3
......@@ -577,23 +577,23 @@ static void __init create_mapping(struct map_desc *md)
*/
void setup_mm_for_reboot(char mode)
{
unsigned long pmdval;
unsigned long base_pmdval;
pgd_t *pgd;
pmd_t *pmd;
int i;
int cpu_arch = cpu_architecture();
if (current->mm && current->mm->pgd)
pgd = current->mm->pgd;
else
pgd = init_mm.pgd;
for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++) {
pmdval = (i << PGDIR_SHIFT) |
PMD_SECT_AP_WRITE | PMD_SECT_AP_READ |
PMD_TYPE_SECT;
if (cpu_arch <= CPU_ARCH_ARMv5TEJ)
pmdval |= PMD_BIT4;
base_pmdval = PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT;
if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ)
base_pmdval |= PMD_BIT4;
for (i = 0; i < FIRST_USER_PGD_NR + USER_PTRS_PER_PGD; i++, pgd++) {
unsigned long pmdval = (i << PGDIR_SHIFT) | base_pmdval;
pmd_t *pmd;
pmd = pmd_off(pgd, i << PGDIR_SHIFT);
pmd[0] = __pmd(pmdval);
pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
......
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