Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932637Ab2JZMcB (ORCPT ); Fri, 26 Oct 2012 08:32:01 -0400 Received: from mail.free-electrons.com ([88.190.12.23]:46708 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932541Ab2JZMb7 (ORCPT ); Fri, 26 Oct 2012 08:31:59 -0400 From: Gregory CLEMENT To: Jason Cooper , Andrew Lunn , Gregory Clement Cc: linux-arm-kernel@lists.infradead.org, Arnd Bergmann , Olof Johansson , Ben Dooks , Ian Molton , Nicolas Pitre , Lior Amsalem , Maen Suleiman , Tawfik Bayouk , Shadi Ammouri , Eran Ben-Avi , Yehuda Yitschak , Nadav Haklai , Ike Pan , Jani Monoses , Chris Van Hoof , Dan Frazier , Thomas Petazzoni , Leif Lindholm , Jon Masters , David Marlin , Sebastian Hesselbarth , linux-kernel@vger.kernel.org Subject: [PATCH V2 1/4] arm: mvebu: increase atomic coherent pool size for armada 370/XP Date: Fri, 26 Oct 2012 14:30:46 +0200 Message-Id: <1351254650-26861-2-git-send-email-gregory.clement@free-electrons.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1351254650-26861-1-git-send-email-gregory.clement@free-electrons.com> References: <1351254650-26861-1-git-send-email-gregory.clement@free-electrons.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2065 Lines: 57 For Armada 370/XP we have the same problem that for the commit cb01b63, so we applied the same solution: "The default 256 KiB coherent pool may be too small for some of the Kirkwood devices, so increase it to make sure that devices will be able to allocate their buffers with GFP_ATOMIC flag" Signed-off-by: Gregory CLEMENT Acked-by: Marek Szyprowski --- arch/arm/mach-mvebu/armada-370-xp.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c index 2af6ce5..cbad821 100644 --- a/arch/arm/mach-mvebu/armada-370-xp.c +++ b/arch/arm/mach-mvebu/armada-370-xp.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -43,6 +44,16 @@ void __init armada_370_xp_timer_and_clk_init(void) armada_370_xp_timer_init(); } +void __init armada_370_xp_init_early(void) +{ + /* + * Some Armada 370/XP devices allocate their coherent buffers + * from atomic context. Increase size of atomic coherent pool + * to make sure such the allocations won't fail. + */ + init_dma_coherent_pool_size(SZ_1M); +} + struct sys_timer armada_370_xp_timer = { .init = armada_370_xp_timer_and_clk_init, }; @@ -61,6 +72,7 @@ static const char * const armada_370_xp_dt_board_dt_compat[] = { DT_MACHINE_START(ARMADA_XP_DT, "Marvell Aramada 370/XP (Device Tree)") .init_machine = armada_370_xp_dt_init, .map_io = armada_370_xp_map_io, + .init_early = armada_370_xp_init_early, .init_irq = armada_370_xp_init_irq, .handle_irq = armada_370_xp_handle_irq, .timer = &armada_370_xp_timer, -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/