diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-11-21 11:41:57 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-22 11:05:33 +0000 |
| commit | 614dd0585f376a25c638abbed9c5fbd21d7baece (patch) | |
| tree | 9bd2c8bb3523632901e3ddc3f9b1eba24e7671ab /arch/arm/kernel/smp.c | |
| parent | 26bbf0b57a0848932f725076bcb1245ca696e8d3 (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.c | 34 |
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); |