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GET /api/patches/807570/?format=api
{ "id": 807570, "url": "http://patchwork.ozlabs.org/api/patches/807570/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20170830101550.16821-1-fbarrat@linux.vnet.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20170830101550.16821-1-fbarrat@linux.vnet.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20170830101550.16821-1-fbarrat@linux.vnet.ibm.com/", "date": "2017-08-30T10:15:48", "name": "[v2,1/3] powerpc/mm: Export flush_all_mm()", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "970083e627355155ad70de325ec38f0b7dd6f11f", "submitter": { "id": 67555, "url": "http://patchwork.ozlabs.org/api/people/67555/?format=api", "name": "Frederic Barrat", "email": "fbarrat@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20170830101550.16821-1-fbarrat@linux.vnet.ibm.com/mbox/", "series": [ { "id": 576, "url": "http://patchwork.ozlabs.org/api/series/576/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=576", "date": "2017-08-30T10:15:48", "name": "[v2,1/3] powerpc/mm: Export flush_all_mm()", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/576/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/807570/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/807570/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xj1fS5tNzz9sQl\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed, 30 Aug 2017 20:17:52 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xj1fS4l6pzDqXl\n\tfor <patchwork-incoming@ozlabs.org>;\n\tWed, 30 Aug 2017 20:17:52 +1000 (AEST)", "from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com\n\t[148.163.158.5])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xj1cJ6k0szDqMc\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tWed, 30 Aug 2017 20:16:00 +1000 (AEST)", "from pps.filterd (m0098419.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv7UADp3E124806\n\tfor <linuxppc-dev@lists.ozlabs.org>; Wed, 30 Aug 2017 06:15:57 -0400", "from e06smtp14.uk.ibm.com (e06smtp14.uk.ibm.com [195.75.94.110])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2cnqqyccvy-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <linuxppc-dev@lists.ozlabs.org>; Wed, 30 Aug 2017 06:15:57 -0400", "from localhost\n\tby e06smtp14.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <linuxppc-dev@lists.ozlabs.org> from <fbarrat@linux.vnet.ibm.com>;\n\tWed, 30 Aug 2017 11:15:55 +0100", "from b06cxnps3075.portsmouth.uk.ibm.com (9.149.109.195)\n\tby e06smtp14.uk.ibm.com (192.168.101.144) with IBM ESMTP SMTP\n\tGateway: Authorized Use Only! Violators will be prosecuted; \n\tWed, 30 Aug 2017 11:15:54 +0100", "from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com\n\t[9.149.105.59])\n\tby b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v7UAFr7T28836002; Wed, 30 Aug 2017 10:15:53 GMT", "from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 4DB4AA4040;\n\tWed, 30 Aug 2017 11:12:22 +0100 (BST)", "from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 6C5A1A4051;\n\tWed, 30 Aug 2017 11:12:21 +0100 (BST)", "from localhost.localdomain (unknown [9.164.182.241])\n\tby d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP;\n\tWed, 30 Aug 2017 11:12:21 +0100 (BST)" ], "From": "Frederic Barrat <fbarrat@linux.vnet.ibm.com>", "To": "mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,\n\tbenh@kernel.crashing.org, andrew.donnellan@au1.ibm.com,\n\tclombard@linux.vnet.ibm.com, vaibhav@linux.vnet.ibm.com", "Subject": "[PATCH v2 1/3] powerpc/mm: Export flush_all_mm()", "Date": "Wed, 30 Aug 2017 12:15:48 +0200", "X-Mailer": "git-send-email 2.11.0", "X-TM-AS-GCONF": "00", "x-cbid": "17083010-0016-0000-0000-000004E76156", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17083010-0017-0000-0000-00002820DAE3", "Message-Id": "<20170830101550.16821-1-fbarrat@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-08-30_04:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1708300154", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<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>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "alistair@popple.id.au", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "With the optimizations introduced by commit a46cc7a90fd8\n(\"powerpc/mm/radix: Improve TLB/PWC flushes\"), flush_tlb_mm() no\nlonger flushes the page walk cache with radix. This patch introduces\nflush_all_mm(), which flushes everything, tlb and pwc, for a given mm.\n\nSigned-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>\n---\nChangelog:\nv2: this patch is new\n\n arch/powerpc/include/asm/book3s/64/tlbflush-hash.h | 8 ++++++++\n arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | 3 +++\n arch/powerpc/include/asm/book3s/64/tlbflush.h | 15 +++++++++++++++\n arch/powerpc/mm/tlb-radix.c | 6 ++++--\n 4 files changed, 30 insertions(+), 2 deletions(-)", "diff": "diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h\nindex 2f6373144e2c..c5d89d271a96 100644\n--- a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h\n+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h\n@@ -65,6 +65,14 @@ static inline void hash__flush_tlb_mm(struct mm_struct *mm)\n {\n }\n \n+static inline void hash__local_flush_all_mm(struct mm_struct *mm)\n+{\n+}\n+\n+static inline void hash__flush_all_mm(struct mm_struct *mm)\n+{\n+}\n+\n static inline void hash__local_flush_tlb_page(struct vm_area_struct *vma,\n \t\t\t\t\t unsigned long vmaddr)\n {\ndiff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h\nindex 9b433a624bf3..af06c6fe8a9f 100644\n--- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h\n+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h\n@@ -21,17 +21,20 @@ extern void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long sta\n extern void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end);\n \n extern void radix__local_flush_tlb_mm(struct mm_struct *mm);\n+extern void radix__local_flush_all_mm(struct mm_struct *mm);\n extern void radix__local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);\n extern void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,\n \t\t\t\t\t int psize);\n extern void radix__tlb_flush(struct mmu_gather *tlb);\n #ifdef CONFIG_SMP\n extern void radix__flush_tlb_mm(struct mm_struct *mm);\n+extern void radix__flush_all_mm(struct mm_struct *mm);\n extern void radix__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);\n extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,\n \t\t\t\t\tint psize);\n #else\n #define radix__flush_tlb_mm(mm)\t\tradix__local_flush_tlb_mm(mm)\n+#define radix__flush_all_mm(mm)\t\tradix__local_flush_all_mm(mm)\n #define radix__flush_tlb_page(vma,addr)\tradix__local_flush_tlb_page(vma,addr)\n #define radix__flush_tlb_page_psize(mm,addr,p) radix__local_flush_tlb_page_psize(mm,addr,p)\n #endif\ndiff --git a/arch/powerpc/include/asm/book3s/64/tlbflush.h b/arch/powerpc/include/asm/book3s/64/tlbflush.h\nindex 72b925f97bab..70760d018bcd 100644\n--- a/arch/powerpc/include/asm/book3s/64/tlbflush.h\n+++ b/arch/powerpc/include/asm/book3s/64/tlbflush.h\n@@ -57,6 +57,13 @@ static inline void local_flush_tlb_page(struct vm_area_struct *vma,\n \treturn hash__local_flush_tlb_page(vma, vmaddr);\n }\n \n+static inline void local_flush_all_mm(struct mm_struct *mm)\n+{\n+\tif (radix_enabled())\n+\t\treturn radix__local_flush_all_mm(mm);\n+\treturn hash__local_flush_all_mm(mm);\n+}\n+\n static inline void tlb_flush(struct mmu_gather *tlb)\n {\n \tif (radix_enabled())\n@@ -79,9 +86,17 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,\n \t\treturn radix__flush_tlb_page(vma, vmaddr);\n \treturn hash__flush_tlb_page(vma, vmaddr);\n }\n+\n+static inline void flush_all_mm(struct mm_struct *mm)\n+{\n+\tif (radix_enabled())\n+\t\treturn radix__flush_all_mm(mm);\n+\treturn hash__flush_all_mm(mm);\n+}\n #else\n #define flush_tlb_mm(mm)\t\tlocal_flush_tlb_mm(mm)\n #define flush_tlb_page(vma, addr)\tlocal_flush_tlb_page(vma, addr)\n+#define flush_all_mm(mm)\t\tlocal_flush_all_mm(mm)\n #endif /* CONFIG_SMP */\n /*\n * flush the page walk cache for the address\ndiff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c\nindex b3e849c4886e..5a1f46eff3a2 100644\n--- a/arch/powerpc/mm/tlb-radix.c\n+++ b/arch/powerpc/mm/tlb-radix.c\n@@ -144,7 +144,7 @@ void radix__local_flush_tlb_mm(struct mm_struct *mm)\n EXPORT_SYMBOL(radix__local_flush_tlb_mm);\n \n #ifndef CONFIG_SMP\n-static void radix__local_flush_all_mm(struct mm_struct *mm)\n+void radix__local_flush_all_mm(struct mm_struct *mm)\n {\n \tunsigned long pid;\n \n@@ -154,6 +154,7 @@ static void radix__local_flush_all_mm(struct mm_struct *mm)\n \t\t_tlbiel_pid(pid, RIC_FLUSH_ALL);\n \tpreempt_enable();\n }\n+EXPORT_SYMBOL(radix__local_flush_all_mm);\n #endif /* CONFIG_SMP */\n \n void radix__local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr,\n@@ -200,7 +201,7 @@ void radix__flush_tlb_mm(struct mm_struct *mm)\n }\n EXPORT_SYMBOL(radix__flush_tlb_mm);\n \n-static void radix__flush_all_mm(struct mm_struct *mm)\n+void radix__flush_all_mm(struct mm_struct *mm)\n {\n \tunsigned long pid;\n \n@@ -216,6 +217,7 @@ static void radix__flush_all_mm(struct mm_struct *mm)\n no_context:\n \tpreempt_enable();\n }\n+EXPORT_SYMBOL(radix__flush_all_mm);\n \n void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr)\n {\n", "prefixes": [ "v2", "1/3" ] }