Message ID | 20190903052407.16638-1-alastair@au1.ibm.com (mailing list archive) |
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Headers | show
Return-Path: <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 46MwRz3D5Qz9s7T for <patchwork-incoming@ozlabs.org>; Tue, 3 Sep 2019 15:26:55 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=au1.ibm.com Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 46MwRz2Pl6zDqV2 for <patchwork-incoming@ozlabs.org>; Tue, 3 Sep 2019 15:26:55 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=au1.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=alastair@au1.ibm.com; receiver=<UNKNOWN>) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=au1.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46MwPl19WjzDqJk for <linuxppc-dev@lists.ozlabs.org>; Tue, 3 Sep 2019 15:24:58 +1000 (AEST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x835MYFF104128 for <linuxppc-dev@lists.ozlabs.org>; Tue, 3 Sep 2019 01:24:53 -0400 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0b-001b2d01.pphosted.com with ESMTP id 2usevxvgpc-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for <linuxppc-dev@lists.ozlabs.org>; Tue, 03 Sep 2019 01:24:53 -0400 Received: from localhost by e06smtp05.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 3 Sep 2019 06:24:47 +0100 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x835Okha47775760 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 3 Sep 2019 05:24:46 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0D21AAE055; Tue, 3 Sep 2019 05:24:46 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A885DAE04D; Tue, 3 Sep 2019 05:24:45 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 3 Sep 2019 05:24:45 +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 5E4F8A00EC; Tue, 3 Sep 2019 15:24:44 +1000 (AEST) From: "Alastair D'Silva" <alastair@au1.ibm.com> To: alastair@d-silva.org Subject: [PATCH v2 0/6] powerpc: convert cache asm to C Date: Tue, 3 Sep 2019 15:23:54 +1000 X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 19090305-0020-0000-0000-00000366F23E X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19090305-0021-0000-0000-000021BC593F Message-Id: <20190903052407.16638-1-alastair@au1.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-09-03_01:, , 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=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1909030060 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: Michal Hocko <mhocko@suse.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, David Hildenbrand <david@redhat.com>, linux-kernel@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>, Mike Rapoport <rppt@linux.vnet.ibm.com>, Paul Mackerras <paulus@samba.org>, Qian Cai <cai@lca.pw>, Thomas Gleixner <tglx@linutronix.de>, linuxppc-dev@lists.ozlabs.org, Andrew Morton <akpm@linux-foundation.org>, Allison Randal <allison@lohutok.net> Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> |
Series |
powerpc: convert cache asm to C
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From: Alastair D'Silva <alastair@d-silva.org> 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 Changelog: V2: - Replace C implementation of flush_dcache_icache_phys() with inline assembler authored by Christophe Leroy - Add memory clobbers for iccci implementation - Give __flush_dcache_icache a real implementation, it can't just be a wrapper around flush_icache_range() - Remove PPC64_CACHES from misc_64.S - Replace code duplicating clean_dcache_range() in flush_icache_range() with a call to clean_dcache_range() - Replace #ifdef CONFIG_44x with IS_ENABLED(...) in flush_icache_cange() - Use 1GB chunks instead of 16GB in arch_*_memory arch/powerpc/include/asm/cache.h | 63 ++++++---- arch/powerpc/include/asm/cacheflush.h | 37 +++--- arch/powerpc/kernel/misc_32.S | 117 ------------------- arch/powerpc/kernel/misc_64.S | 102 ----------------- arch/powerpc/mm/mem.c | 159 +++++++++++++++++++++++++- 5 files changed, 213 insertions(+), 265 deletions(-)