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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-11-21 11:41:57 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-12-22 11:05:33 +0000
commit614dd0585f376a25c638abbed9c5fbd21d7baece (patch)
tree9bd2c8bb3523632901e3ddc3f9b1eba24e7671ab /arch/arm/kernel/smp.c
parent26bbf0b57a0848932f725076bcb1245ca696e8d3 (diff)
ARM: pgtable: collect up identity mapping functions
We have two places where we create identity mappings - one when we bring secondary CPUs online, and one where we setup some mappings for soft- reboot. Combine these two into a single implementation. Also collect the identity mapping deletion function. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/smp.c')
-rw-r--r--arch/arm/kernel/smp.c34
1 files changed, 0 insertions, 34 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 46313805f430..73cef403352a 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -68,40 +68,6 @@ enum ipi_msg_type {
IPI_CPU_STOP,
};
-static inline void identity_mapping_add(pgd_t *pgd, unsigned long start,
- unsigned long end)
-{
- unsigned long addr, prot;
- pmd_t *pmd;
-
- prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE;
- if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale())
- prot |= PMD_BIT4;
-
- for (addr = start & PGDIR_MASK; addr < end;) {
- pmd = pmd_offset(pgd + pgd_index(addr), addr);
- pmd[0] = __pmd(addr | prot);
- addr += SECTION_SIZE;
- pmd[1] = __pmd(addr | prot);
- addr += SECTION_SIZE;
- flush_pmd_entry(pmd);
- }
-}
-
-static inline void identity_mapping_del(pgd_t *pgd, unsigned long start,
- unsigned long end)
-{
- unsigned long addr;
- pmd_t *pmd;
-
- for (addr = start & PGDIR_MASK; addr < end; addr += PGDIR_SIZE) {
- pmd = pmd_offset(pgd + pgd_index(addr), addr);
- pmd[0] = __pmd(0);
- pmd[1] = __pmd(0);
- clean_pmd_entry(pmd);
- }
-}
-
int __cpuinit __cpu_up(unsigned int cpu)
{
struct cpuinfo_arm *ci = &per_cpu(cpu_data, cpu);