From: m.szyprowski@samsung•com (Marek Szyprowski)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 1/2] arm: mvebu: increase atomic coherent pool size for armada 370/XP
Date: Thu, 25 Oct 2012 07:29:37 +0200 [thread overview]
Message-ID: <5088CE41.7030704@samsung.com> (raw)
In-Reply-To: <1351086561-13569-2-git-send-email-gregory.clement@free-electrons.com>
Hello,
On 10/24/2012 3:49 PM, Gregory CLEMENT wrote:
> 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 <gregory.clement@free-electrons•com>
>
> Cc: Marek Szyprowski <m.szyprowski@samsung•com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung•com>
> ---
> 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 <linux/of_platform.h>
> #include <linux/io.h>
> #include <linux/time-armada-370-xp.h>
> +#include <linux/dma-mapping.h>
> #include <asm/mach/arch.h>
> #include <asm/mach/map.h>
> #include <asm/mach/time.h>
> @@ -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,
>
Best regards
--
Marek Szyprowski
Samsung Poland R&D Center
next prev parent reply other threads:[~2012-10-25 5:29 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-24 13:49 [PATCH 0/2] Adding SATA support for Armada 370/XP Gregory CLEMENT
2012-10-24 13:49 ` [PATCH 1/2] arm: mvebu: increase atomic coherent pool size for armada 370/XP Gregory CLEMENT
2012-10-25 5:29 ` Marek Szyprowski [this message]
2012-10-25 11:27 ` Arnd Bergmann
2012-10-25 11:43 ` Thomas Petazzoni
2012-10-25 13:46 ` Arnd Bergmann
2012-10-25 14:09 ` Thomas Petazzoni
2012-10-30 7:19 ` Marek Szyprowski
2012-10-24 13:49 ` [PATCH 2/2] arm: mvebu: adding SATA support: dt binding and config update Gregory CLEMENT
2012-10-24 14:01 ` Thomas Petazzoni
2012-10-24 14:05 ` Gregory CLEMENT
2012-10-25 13:18 ` Jason Cooper
2012-10-25 13:21 ` Thomas Petazzoni
2012-10-25 13:34 ` Gregory CLEMENT
2012-10-25 13:57 ` Rob Herring
2012-10-25 16:00 ` Gregory CLEMENT
2012-10-25 13:35 ` Jason Cooper
2012-10-25 13:53 ` Rob Herring
2012-10-25 14:11 ` Gregory CLEMENT
2012-10-25 14:27 ` Rob Herring
2012-10-24 14:08 ` Andrew Lunn
2012-10-24 14:45 ` Gregory CLEMENT
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