{"id":809914,"url":"http://patchwork.ozlabs.org/api/1.2/patches/809914/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1504583864-8169-1-git-send-email-alistair@popple.id.au/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/1.2/projects/2/?format=json","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":"<1504583864-8169-1-git-send-email-alistair@popple.id.au>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/1504583864-8169-1-git-send-email-alistair@popple.id.au/","date":"2017-09-05T03:57:43","name":"[1/2] powerpc/npu: Use flush_all_mm() instead of flush_tlb_mm()","commit_ref":null,"pull_url":null,"state":"superseded","archived":true,"hash":"b48d26b3f9accc19aec3425a588f9d4197f99a94","submitter":{"id":24781,"url":"http://patchwork.ozlabs.org/api/1.2/people/24781/?format=json","name":"Alistair Popple","email":"alistair@popple.id.au"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1504583864-8169-1-git-send-email-alistair@popple.id.au/mbox/","series":[{"id":1483,"url":"http://patchwork.ozlabs.org/api/1.2/series/1483/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=1483","date":"2017-09-05T03:57:43","name":"[1/2] powerpc/npu: Use flush_all_mm() instead of flush_tlb_mm()","version":1,"mbox":"http://patchwork.ozlabs.org/series/1483/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/809914/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/809914/checks/","tags":{},"related":[],"headers":{"Return-Path":"","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 [IPv6:2401:3900:2:1::3])\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 3xmXyv46KWz9sNr\n\tfor ;\n\tTue, 5 Sep 2017 13:59:19 +1000 (AEST)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xmXyv2RLdzDrJW\n\tfor ;\n\tTue, 5 Sep 2017 13:59:19 +1000 (AEST)","from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xmXxM4btSzDqYK\n\tfor ;\n\tTue, 5 Sep 2017 13:57:59 +1000 (AEST)","from authenticated.ozlabs.org (localhost [127.0.0.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPSA id 3xmXxM11gSz9sNr;\n\tTue, 5 Sep 2017 13:57:59 +1000 (AEST)"],"From":"Alistair Popple ","To":"linuxppc-dev@lists.ozlabs.org","Subject":"[PATCH 1/2] powerpc/npu: Use flush_all_mm() instead of\n\tflush_tlb_mm()","Date":"Tue, 5 Sep 2017 13:57:43 +1000","Message-Id":"<1504583864-8169-1-git-send-email-alistair@popple.id.au>","X-Mailer":"git-send-email 2.1.4","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","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"andrew.donnellan@au1.ibm.com, arbab@linux.vnet.ibm.com,\n\tfbarrat@linux.vnet.ibm.com, Alistair Popple ","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"},"content":"With the optimisations introduced by commit a46cc7a908 (\"powerpc/mm/radix:\nImprove TLB/PWC flushes\"), flush_tlb_mm() no longer flushes the page walk\ncache with radix. Switch to using flush_all_mm() to ensure the pwc and tlb\nare properly flushed on the nmmu.\n\nSigned-off-by: Alistair Popple \n---\n\nMichael,\n\nThis depends on Frederic's series:\n\nhttp://patchwork.ozlabs.org/patch/809343/\nhttp://patchwork.ozlabs.org/patch/809344/\n\nThanks.\n\nAlistair\n\narch/powerpc/platforms/powernv/npu-dma.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)","diff":"diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c\nindex 2cb6cbe..2fff9a65 100644\n--- a/arch/powerpc/platforms/powernv/npu-dma.c\n+++ b/arch/powerpc/platforms/powernv/npu-dma.c\n@@ -549,7 +549,7 @@ static void mmio_invalidate(struct npu_context *npu_context, int va,\n \t * Unfortunately the nest mmu does not support flushing specific\n \t * addresses so we have to flush the whole mm.\n \t */\n-\tflush_tlb_mm(npu_context->mm);\n+\tflush_all_mm(npu_context->mm);\n \n \t/*\n \t * Loop over all the NPUs this process is active on and launch\n","prefixes":["1/2"]}