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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-07-22 07:16:41 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-07-22 07:16:41 +0400 |
| commit | 4b575f3e8aba07688fc48025efde41036e5d5eee (patch) | |
| tree | 4bbccce83e80af179500be45f9e8080315f5e32e /arch/powerpc/mm/tlb_nohash.c | |
| parent | f7723f0eaf53d51ee54374116b25ac33e0be8542 (diff) | |
| parent | a8e616b9a41212655042f59c969f30bb7de1ec73 (diff) | |
| download | linux-4b575f3e8aba07688fc48025efde41036e5d5eee.tar.xz | |
Merge remote-tracking branch 'jwb/next' into next
Diffstat (limited to 'arch/powerpc/mm/tlb_nohash.c')
| -rw-r--r-- | arch/powerpc/mm/tlb_nohash.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c index e80ed1093e2f..d32ec643c231 100644 --- a/arch/powerpc/mm/tlb_nohash.c +++ b/arch/powerpc/mm/tlb_nohash.c @@ -35,6 +35,7 @@ #include <linux/preempt.h> #include <linux/spinlock.h> #include <linux/memblock.h> +#include <linux/of_fdt.h> #include <asm/tlbflush.h> #include <asm/tlb.h> @@ -272,6 +273,17 @@ EXPORT_SYMBOL(flush_tlb_page); #endif /* CONFIG_SMP */ +#ifdef CONFIG_PPC_47x +void __init early_init_mmu_47x(void) +{ +#ifdef CONFIG_SMP + unsigned long root = of_get_flat_dt_root(); + if (of_get_flat_dt_prop(root, "cooperative-partition", NULL)) + mmu_clear_feature(MMU_FTR_USE_TLBIVAX_BCAST); +#endif /* CONFIG_SMP */ +} +#endif /* CONFIG_PPC_47x */ + /* * Flush kernel TLB entries in the given range */ @@ -599,4 +611,11 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base, /* Finally limit subsequent allocations */ memblock_set_current_limit(first_memblock_base + ppc64_rma_size); } +#else /* ! CONFIG_PPC64 */ +void __init early_init_mmu(void) +{ +#ifdef CONFIG_PPC_47x + early_init_mmu_47x(); +#endif +} #endif /* CONFIG_PPC64 */ |