diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-04-04 22:09:46 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-06-02 01:48:19 +0300 |
| commit | b2c3e38a54714e917c9e8675ff5812dca1c0f39d (patch) | |
| tree | 0d5e9747b2c73ccd4c961c8d6a50841b52cf11fd /arch/arm/mach-keystone | |
| parent | 1221ed10f2a56ecdd8ff75f436f52aca5ba0f1d3 (diff) | |
| download | linux-b2c3e38a54714e917c9e8675ff5812dca1c0f39d.tar.xz | |
ARM: redo TTBR setup code for LPAE
Re-engineer the LPAE TTBR setup code. Rather than passing some shifted
address in order to fit in a CPU register, pass either a full physical
address (in the case of r4, r5 for TTBR0) or a PFN (for TTBR1).
This removes the ARCH_PGD_SHIFT hack, and the last dangerous user of
cpu_set_ttbr() in the secondary CPU startup code path (which was there
to re-set TTBR1 to the appropriate high physical address space on
Keystone2.)
Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-keystone')
| -rw-r--r-- | arch/arm/mach-keystone/platsmp.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/arm/mach-keystone/platsmp.c b/arch/arm/mach-keystone/platsmp.c index 5f46a7cf907b..4bbb18463bfd 100644 --- a/arch/arm/mach-keystone/platsmp.c +++ b/arch/arm/mach-keystone/platsmp.c @@ -39,19 +39,6 @@ static int keystone_smp_boot_secondary(unsigned int cpu, return error; } -#ifdef CONFIG_ARM_LPAE -static void __cpuinit keystone_smp_secondary_initmem(unsigned int cpu) -{ - pgd_t *pgd0 = pgd_offset_k(0); - cpu_set_ttbr(1, __pa(pgd0) + TTBR1_OFFSET); - local_flush_tlb_all(); -} -#else -static inline void __cpuinit keystone_smp_secondary_initmem(unsigned int cpu) -{} -#endif - struct smp_operations keystone_smp_ops __initdata = { .smp_boot_secondary = keystone_smp_boot_secondary, - .smp_secondary_init = keystone_smp_secondary_initmem, }; |