From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-f181.google.com (mail-lb0-f181.google.com [209.85.217.181]) by kanga.kvack.org (Postfix) with ESMTP id 2836D6B0069 for ; Fri, 24 Oct 2014 06:18:48 -0400 (EDT) Received: by mail-lb0-f181.google.com with SMTP id l4so2267965lbv.26 for ; Fri, 24 Oct 2014 03:18:47 -0700 (PDT) Received: from galahad.ideasonboard.com (galahad.ideasonboard.com. [2001:4b98:dc2:45:216:3eff:febb:480d]) by mx.google.com with ESMTPS id p6si6226000lap.91.2014.10.24.03.18.45 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 24 Oct 2014 03:18:46 -0700 (PDT) From: Laurent Pinchart Subject: [PATCH v2 0/4] Low/high memory CMA reservation fixes Date: Fri, 24 Oct 2014 13:18:38 +0300 Message-Id: <1414145922-26042-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sh@vger.kernel.org, Marek Szyprowski , Russell King - ARM Linux , Michal Nazarewicz , Joonsoo Kim , Weijie Yang Hello, This patch set fixes an issue introduced by commits 95b0e655f914 ("ARM: mm: don't limit default CMA region only to low memory") and f7426b983a6a ("mm: cma: adjust address limit to avoid hitting low/high memory boundary") resulting in reserved areas crossing the low/high memory boundary. Patches 1/4 and 2/4 fix sides issues, with the bulk of the work in patch 3/4. Patch 4/4 then fixes a printk issue that got me puzzled wondering why memory reported under the lowmem limit was actually highmem. This series fixes a v3.18-rc1 regression causing Renesas Koelsch boot breakages when CMA is enabled. Changes since v1: - Use the cma count field to detect non-activated reservations - Remove the redundant limit adjustment Laurent Pinchart (4): mm: cma: Don't crash on allocation if CMA area can't be activated mm: cma: Always consider a 0 base address reservation as dynamic mm: cma: Ensure that reservations never cross the low/high mem boundary mm: cma: Use %pa to print physical addresses mm/cma.c | 68 +++++++++++++++++++++++++++++++++++++++++----------------------- 1 file changed, 44 insertions(+), 24 deletions(-) -- Regards, Laurent Pinchart -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org