From e399b1a4e1d205bdc816cb550d2064f2eb1ddc4c Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 17 Jan 2011 15:08:32 +0000 Subject: ARM: v6k: introduce CPU_V6K option Introduce a CPU_V6K configuration option for platforms to select if they have a V6K CPU core. This allows us to identify whether we need to support ARMv6 CPUs without the V6K SMP extensions at build time. Currently CPU_V6K is just an alias for CPU_V6, and all places which reference CPU_V6 are replaced by (CPU_V6 || CPU_V6K). Select CPU_V6K from platforms which are known to be V6K-only. Acked-by: Tony Lindgren Tested-by: Sourav Poddar Tested-by: Will Deacon Signed-off-by: Russell King --- arch/arm/include/asm/cacheflush.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/arm/include/asm/cacheflush.h') diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 3acd8fa25e34..7d0614f599a7 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -116,7 +116,7 @@ # define MULTI_CACHE 1 #endif -#if defined(CONFIG_CPU_V6) +#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) //# ifdef _CACHE # define MULTI_CACHE 1 //# else @@ -316,7 +316,8 @@ extern void copy_to_user_page(struct vm_area_struct *, struct page *, * Optimized __flush_icache_all for the common cases. Note that UP ARMv7 * will fall through to use __flush_icache_all_generic. */ -#if (defined(CONFIG_CPU_V7) && defined(CONFIG_CPU_V6)) || \ +#if (defined(CONFIG_CPU_V7) && \ + (defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K))) || \ defined(CONFIG_SMP_ON_UP) #define __flush_icache_preferred __cpuc_flush_icache_all #elif __LINUX_ARM_ARCH__ >= 7 && defined(CONFIG_SMP) -- cgit v1.2.3 From 774c096bf9e49eebf7b5d2d9fdddf632c29ccea0 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 23 Jan 2011 13:04:53 +0000 Subject: ARM: v6/v7 cache: allow cache calls to be optimized The v6 cache call optimization was disabled to allow the optional block cache operations to be subsituted on CPUs which supported those operations. However, as that functionality was removed, we no longer need to prevent this optimization being taken advantage of. The v7 cache call optimization was just a copy of the v6, so also fix that too. Tested-by: Will Deacon Signed-off-by: Russell King --- arch/arm/include/asm/cacheflush.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'arch/arm/include/asm/cacheflush.h') diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 7d0614f599a7..d9b4c42d62ff 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -116,20 +116,20 @@ # define MULTI_CACHE 1 #endif -#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) -//# ifdef _CACHE +#if defined(CONFIG_CPU_CACHE_V6) +# ifdef _CACHE # define MULTI_CACHE 1 -//# else -//# define _CACHE v6 -//# endif +# else +# define _CACHE v6 +# endif #endif -#if defined(CONFIG_CPU_V7) -//# ifdef _CACHE +#if defined(CONFIG_CPU_CACHE_V7) +# ifdef _CACHE # define MULTI_CACHE 1 -//# else -//# define _CACHE v7 -//# endif +# else +# define _CACHE v7 +# endif #endif #if !defined(_CACHE) && !defined(MULTI_CACHE) -- cgit v1.2.3