Messages in this thread Patch in this message | | | From | Leif Lindholm <> | Subject | [PATCH] arm64: Add flush_cache_vmap call in __early_set_fixmap | Date | Fri, 6 Jun 2014 11:29:50 +0100 |
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__early_set_fixmap does not do any synchronization when called to set a fixmap entry. Add call to flush_vmap_cache().
Tested on hardware.
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org> Tested-by: Graeme Gregory <graeme.gregory@linaro.org> Cc: Steve Capper <steve.capper@linaro.org> --- arch/arm64/mm/ioremap.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/mm/ioremap.c b/arch/arm64/mm/ioremap.c index 7ec3283..5b8766c 100644 --- a/arch/arm64/mm/ioremap.c +++ b/arch/arm64/mm/ioremap.c @@ -176,9 +176,10 @@ void __init __early_set_fixmap(enum fixed_addresses idx, pte = early_ioremap_pte(addr); - if (pgprot_val(flags)) + if (pgprot_val(flags)) { set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags)); - else { + flush_cache_vmap(addr, addr + PAGE_SIZE); + } else { pte_clear(&init_mm, addr, pte); flush_tlb_kernel_range(addr, addr+PAGE_SIZE); } -- 1.7.10.4
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