From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: [PATCH 21/36] m68k: modify cache push and clear code for ColdFire with MMU enable Date: Tue, 25 Oct 2011 17:19:13 +1000 Message-ID: <1319527168-11166-22-git-send-email-gerg@snapgear.com> References: <1319527168-11166-1-git-send-email-gerg@snapgear.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from sncsmrelay2.nai.com ([67.97.80.206]:25126 "EHLO sncsmrelay2.nai.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754100Ab1JYHT3 (ORCPT ); Tue, 25 Oct 2011 03:19:29 -0400 In-Reply-To: <1319527168-11166-1-git-send-email-gerg@snapgear.com> Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: linux-m68k@vger.kernel.org, uclinux-dev@uclinux.org Cc: Greg Ungerer From: Greg Ungerer The cache push and clear code only need to flush the branch cache on the write-through cache setup of the ColdFire V4e with MMU enabled. Signed-off-by: Greg Ungerer --- arch/m68k/mm/memory.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c index 34c77ce..a5f51c8 100644 --- a/arch/m68k/mm/memory.c +++ b/arch/m68k/mm/memory.c @@ -203,6 +203,9 @@ static inline void pushcl040(unsigned long paddr) void cache_clear (unsigned long paddr, int len) { +#ifdef CONFIG_COLDFIRE + flush_cf_bcache(0, DCACHE_MAX_ADDR); +#else if (CPU_IS_040_OR_060) { int tmp; @@ -237,6 +240,7 @@ void cache_clear (unsigned long paddr, int len) if(mach_l2_flush) mach_l2_flush(0); #endif +#endif /* CONFIG_COLDFIRE */ } EXPORT_SYMBOL(cache_clear); @@ -250,6 +254,9 @@ EXPORT_SYMBOL(cache_clear); void cache_push (unsigned long paddr, int len) { +#ifdef CONFIG_COLDFIRE + flush_cf_bcache(0, DCACHE_MAX_ADDR); +#else if (CPU_IS_040_OR_060) { int tmp = PAGE_SIZE; @@ -290,6 +297,7 @@ void cache_push (unsigned long paddr, int len) if(mach_l2_flush) mach_l2_flush(1); #endif +#endif /* CONFIG_COLDFIRE */ } EXPORT_SYMBOL(cache_push); -- 1.7.0.4