From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Sat, 19 Sep 2009 04:21:58 +0200 (CEST) Received: from [65.98.92.6] ([65.98.92.6]:1696 "EHLO b32.net" rhost-flags-FAIL-FAIL-OK-OK) by ftp.linux-mips.org with ESMTP id S1491787AbZISCVu (ORCPT ); Sat, 19 Sep 2009 04:21:50 +0200 Received: (qmail 32385 invoked from network); 19 Sep 2009 02:21:44 -0000 Received: from unknown (HELO two) (127.0.0.1) by 127.0.0.1 with SMTP; 19 Sep 2009 02:21:44 -0000 Received: by two (sSMTP sendmail emulation); Fri, 18 Sep 2009 19:21:44 -0700 From: Kevin Cernekee To: Ralf Baechle Cc: , Date: Fri, 18 Sep 2009 19:12:45 -0700 Subject: [PATCH] MIPS: Avoid destructive invalidation on partial L2 cachelines Message-Id: User-Agent: vim 7.1 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 24056 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: cernekee@gmail.com Precedence: bulk X-list: linux-mips This extends commit a8ca8b64e3fdfec17679cba0ca5ce6e3ffed092d to cover the board cache code. Signed-off-by: Kevin Cernekee --- arch/mips/mm/sc-mips.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c index b55c2d1..5ab5fa8 100644 --- a/arch/mips/mm/sc-mips.c +++ b/arch/mips/mm/sc-mips.c @@ -32,6 +32,11 @@ static void mips_sc_wback_inv(unsigned long addr, unsigned long size) */ static void mips_sc_inv(unsigned long addr, unsigned long size) { + unsigned long lsize = cpu_scache_line_size(); + unsigned long almask = ~(lsize - 1); + + cache_op(Hit_Writeback_Inv_SD, addr & almask); + cache_op(Hit_Writeback_Inv_SD, (addr + size - 1) & almask); blast_inv_scache_range(addr, addr + size); } -- 1.6.3.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [65.98.92.6] ([65.98.92.6]:1696 "EHLO b32.net" rhost-flags-FAIL-FAIL-OK-OK) by ftp.linux-mips.org with ESMTP id S1491787AbZISCVu (ORCPT ); Sat, 19 Sep 2009 04:21:50 +0200 From: Kevin Cernekee Date: Fri, 18 Sep 2009 19:12:45 -0700 Subject: [PATCH] MIPS: Avoid destructive invalidation on partial L2 cachelines Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Return-Path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org To: Ralf Baechle Cc: linux-mips@linux-mips.org, linux-kernel@vger.kernel.org Message-ID: <20090919021245.FQFsQhL48QUf4X5ViOOkH2sP6m8QlnfMntV3qt-iQtQ@z> This extends commit a8ca8b64e3fdfec17679cba0ca5ce6e3ffed092d to cover the board cache code. Signed-off-by: Kevin Cernekee --- arch/mips/mm/sc-mips.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c index b55c2d1..5ab5fa8 100644 --- a/arch/mips/mm/sc-mips.c +++ b/arch/mips/mm/sc-mips.c @@ -32,6 +32,11 @@ static void mips_sc_wback_inv(unsigned long addr, unsigned long size) */ static void mips_sc_inv(unsigned long addr, unsigned long size) { + unsigned long lsize = cpu_scache_line_size(); + unsigned long almask = ~(lsize - 1); + + cache_op(Hit_Writeback_Inv_SD, addr & almask); + cache_op(Hit_Writeback_Inv_SD, (addr + size - 1) & almask); blast_inv_scache_range(addr, addr + size); } -- 1.6.3.1