From e25781e3dea914cc4c34c946bae5fa3d4516516f Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Mon, 19 Oct 2015 14:19:33 +0100 Subject: [PATCH] arm64: Simplify NR_FIX_BTMAPS calculation We choose NR_FIX_BTMAPS such that each slot (NR_FIX_BTMAPS * PAGE_SIZE) can address 256K. Use division to derive NR_FIX_BTMAPS rather than defining it for each page size. Signed-off-by: Mark Rutland Signed-off-by: Suzuki K. Poulose Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/fixmap.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h index 8b9884c726ad..309704544d22 100644 --- a/arch/arm64/include/asm/fixmap.h +++ b/arch/arm64/include/asm/fixmap.h @@ -17,6 +17,7 @@ #ifndef __ASSEMBLY__ #include +#include #include #include @@ -55,11 +56,7 @@ enum fixed_addresses { * Temporary boot-time mappings, used by early_ioremap(), * before ioremap() is functional. */ -#ifdef CONFIG_ARM64_64K_PAGES -#define NR_FIX_BTMAPS 4 -#else -#define NR_FIX_BTMAPS 64 -#endif +#define NR_FIX_BTMAPS (SZ_256K / PAGE_SIZE) #define FIX_BTMAPS_SLOTS 7 #define TOTAL_FIX_BTMAPS (NR_FIX_BTMAPS * FIX_BTMAPS_SLOTS) -- 2.20.1