From patchwork Sat Oct 19 03:20:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11199895 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F1E5F112C for ; Sat, 19 Oct 2019 03:20:05 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BE46922459 for ; Sat, 19 Oct 2019 03:20:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="OiBK6HjD" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE46922459 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A48198E0012; Fri, 18 Oct 2019 23:20:04 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 9F9DB8E0003; Fri, 18 Oct 2019 23:20:04 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 90F028E0012; Fri, 18 Oct 2019 23:20:04 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0161.hostedemail.com [216.40.44.161]) by kanga.kvack.org (Postfix) with ESMTP id 707E48E0003 for ; Fri, 18 Oct 2019 23:20:04 -0400 (EDT) Received: from smtpin23.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id DEAC34DAB for ; Sat, 19 Oct 2019 03:20:03 +0000 (UTC) X-FDA: 76059080286.23.sheep89_1d9f0b2775845 X-Spam-Summary: 2,0,0,11d69ef375ddf733,d41d8cd98f00b204,akpm@linux-foundation.org,:aford173@gmail.com:akpm@linux-foundation.org:catalin.marinas@arm.com:festevam@gmail.com:hch@lst.de:l.stach@pengutronix.de::mm-commits@vger.kernel.org:rppt@linux.ibm.com:stable@vger.kernel.org:torvalds@linux-foundation.org,RULES_HIT:41:355:379:800:960:967:973:988:989:1260:1263:1345:1381:1431:1437:1534:1542:1711:1730:1747:1777:1792:2393:2525:2559:2563:2682:2685:2693:2859:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3353:3865:3866:3867:3868:3874:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4250:4321:5007:6261:6653:6737:7514:7576:7903:8603:9025:9391:9545:9592:10004:10128:10913:11026:11473:11658:11914:12043:12048:12296:12297:12438:12517:12519:12555:12679:12783:12986:13221:13229:13255:13846:14093:14181:14721:14849:21080:21433:21451:21627:21819:21939:30003:30054:30069,0,RBL:error,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0 ,DNSBL:n X-HE-Tag: sheep89_1d9f0b2775845 X-Filterd-Recvd-Size: 4153 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf14.hostedemail.com (Postfix) with ESMTP for ; Sat, 19 Oct 2019 03:20:03 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 216302245D; Sat, 19 Oct 2019 03:20:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571455202; bh=U8BGwNyQFwKnjNUxha0Vgm1czO2AlatS67m+z2mxyoE=; h=Date:From:To:Subject:From; b=OiBK6HjDCGfIBOqUEHN0V18XME3P2BDP5yfAJQTmhoO/8RBnJGymVSncjCRCSQ41S vlpS7HUCd+IhqzkZiubpa9xb/e/huDBTaFp1D7Ozxn3WZCeZTYOCRAPvm9uG+bm9dF ZkBvCu8t2t1NgEhK+CfECCQTcSGdrndB0jHUCP40= Date: Fri, 18 Oct 2019 20:20:01 -0700 From: akpm@linux-foundation.org To: aford173@gmail.com, akpm@linux-foundation.org, catalin.marinas@arm.com, festevam@gmail.com, hch@lst.de, l.stach@pengutronix.de, linux-mm@kvack.org, mm-commits@vger.kernel.org, rppt@linux.ibm.com, stable@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 13/26] mm: memblock: do not enforce current limit for memblock_phys* family Message-ID: <20191019032001.lHhiAiJ7i%akpm@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Mike Rapoport Subject: mm: memblock: do not enforce current limit for memblock_phys* family Until commit 92d12f9544b7 ("memblock: refactor internal allocation functions") the maximal address for memblock allocations was forced to memblock.current_limit only for the allocation functions returning virtual address. The changes introduced by that commit moved the limit enforcement into the allocation core and as a result the allocation functions returning physical address also started to limit allocations to memblock.current_limit. This caused breakage of etnaviv GPU driver: [ 3.682347] etnaviv etnaviv: bound 130000.gpu (ops gpu_ops) [ 3.688669] etnaviv etnaviv: bound 134000.gpu (ops gpu_ops) [ 3.695099] etnaviv etnaviv: bound 2204000.gpu (ops gpu_ops) [ 3.700800] etnaviv-gpu 130000.gpu: model: GC2000, revision: 5108 [ 3.723013] etnaviv-gpu 130000.gpu: command buffer outside valid memory window [ 3.731308] etnaviv-gpu 134000.gpu: model: GC320, revision: 5007 [ 3.752437] etnaviv-gpu 134000.gpu: command buffer outside valid memory window [ 3.760583] etnaviv-gpu 2204000.gpu: model: GC355, revision: 1215 [ 3.766766] etnaviv-gpu 2204000.gpu: Ignoring GPU with VG and FE2.0 Restore the behaviour of memblock_phys* family so that these functions will not enforce memblock.current_limit. Link: http://lkml.kernel.org/r/1570915861-17633-1-git-send-email-rppt@kernel.org Fixes: 92d12f9544b7 ("memblock: refactor internal allocation functions") Signed-off-by: Mike Rapoport Reported-by: Adam Ford Tested-by: Adam Ford [imx6q-logicpd] Cc: Catalin Marinas Cc: Christoph Hellwig Cc: Fabio Estevam Cc: Lucas Stach Cc: Signed-off-by: Andrew Morton --- mm/memblock.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/mm/memblock.c~mm-memblock-do-not-enforce-current-limit-for-memblock_phys-family +++ a/mm/memblock.c @@ -1356,9 +1356,6 @@ static phys_addr_t __init memblock_alloc align = SMP_CACHE_BYTES; } - if (end > memblock.current_limit) - end = memblock.current_limit; - again: found = memblock_find_in_range_node(size, align, start, end, nid, flags); @@ -1469,6 +1466,9 @@ static void * __init memblock_alloc_inte if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, nid); + if (max_addr > memblock.current_limit) + max_addr = memblock.current_limit; + alloc = memblock_alloc_range_nid(size, align, min_addr, max_addr, nid); /* retry allocation without lower limit */