The cachepolicy variable gets initialized using a masked pmd So far, the pmd has been masked with flags valid for the 2-page table format. In the LPAE case, this lead to a wrong assumption of what the initial cachepolicy has been used. Later a check forces the cache policy to writealloc and prints the following warning: Forcing write-allocate cache policy for SMP
This patch uses PMD_SECT_WBWA to mask all cache setting flags. The define represents the complete mask of the cache relevant flags for both page table formats. Signed-off-by: Stefan Agner <[email protected]> --- arch/arm/mm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 724d6be..241e5e2 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -137,7 +137,7 @@ void __init init_default_cache_policy(unsigned long pmd) initial_pmd_value = pmd; - pmd &= PMD_SECT_TEX(1) | PMD_SECT_BUFFERABLE | PMD_SECT_CACHEABLE; + pmd &= PMD_SECT_WBWA; for (i = 0; i < ARRAY_SIZE(cache_policies); i++) if (cache_policies[i].pmd == pmd) { -- 2.9.0
