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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 15 Aug 2019 05:11:59 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06avi18878370.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x7F4BwaK21889440 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 15 Aug 2019 04:11:58 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3C882A4051; Thu, 15 Aug 2019 04:11:58 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DDB5EA4059; Thu, 15 Aug 2019 04:11:57 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 15 Aug 2019 04:11:57 +0000 (GMT) Received: from adsilva.ozlabs.ibm.com (haven.au.ibm.com [9.192.254.114]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id D53CFA01BD; Thu, 15 Aug 2019 14:11:54 +1000 (AEST) From: "Alastair D'Silva" To: alastair@d-silva.org Subject: [PATCH 0/6] powerpc: convert cache asm to C Date: Thu, 15 Aug 2019 14:10:45 +1000 X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 19081504-4275-0000-0000-000003594ED0 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19081504-4276-0000-0000-0000386B636D Message-Id: <20190815041057.13627-1-alastair@au1.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-15_02:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=875 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908150045 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michal Hocko , David Hildenbrand , linux-kernel@vger.kernel.org, Nicholas Piggin , Mike Rapoport , Paul Mackerras , Greg Kroah-Hartman , Qian Cai , Thomas Gleixner , linuxppc-dev@lists.ozlabs.org, Andrew Morton , Allison Randal Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Alastair D'Silva This series addresses a few issues discovered in how we flush caches: 1. Flushes were truncated at 4GB, so larger flushes were incorrect. 2. Flushing the dcache in arch_add_memory was unnecessary This series also converts much of the cache assembler to C, with the aim of making it easier to maintain. Alastair D'Silva (6): powerpc: Allow flush_icache_range to work across ranges >4GB powerpc: define helpers to get L1 icache sizes powerpc: Convert flush_icache_range & friends to C powerpc: Chunk calls to flush_dcache_range in arch_*_memory powerpc: Remove 'extern' from func prototypes in cache headers powerpc: Don't flush caches when adding memory arch/powerpc/include/asm/cache.h | 63 +++++++++----- arch/powerpc/include/asm/cacheflush.h | 49 ++++++----- arch/powerpc/kernel/misc_32.S | 117 -------------------------- arch/powerpc/kernel/misc_64.S | 97 --------------------- arch/powerpc/mm/mem.c | 80 +++++++++++++++++- 5 files changed, 146 insertions(+), 260 deletions(-) -- 2.21.0