From: keith mannthey Date: Mon, 25 Sep 2006 23:24:39 +0000 (-0700) Subject: [PATCH] i386 bootioremap / kexec fix X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=24fd425edd53ea580cad917e825c1f6715e9b939;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [PATCH] i386 bootioremap / kexec fix With CONFIG_PHYSICAL_START set to a non default values the i386 boot_ioremap code calculated its pte index wrong and users of boot_ioremap have their areas incorrectly mapped (for me SRAT table not mapped during early boot). This patch removes the addr < BOOT_PTE_PTRS constraint. [ Keith says this is applicable to 2.6.16 and 2.6.17 as well ] Signed-off-by: Keith Mannthey Cc: Vivek Goyal Cc: Dave Hansen Cc: Cc: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/i386/mm/boot_ioremap.c b/arch/i386/mm/boot_ioremap.c index 5d44f4f5ff5..4de11f508c3 100644 --- a/arch/i386/mm/boot_ioremap.c +++ b/arch/i386/mm/boot_ioremap.c @@ -29,8 +29,11 @@ */ #define BOOT_PTE_PTRS (PTRS_PER_PTE*2) -#define boot_pte_index(address) \ - (((address) >> PAGE_SHIFT) & (BOOT_PTE_PTRS - 1)) + +static unsigned long boot_pte_index(unsigned long vaddr) +{ + return __pa(vaddr) >> PAGE_SHIFT; +} static inline boot_pte_t* boot_vaddr_to_pte(void *address) {