linux-kernel - Re: [PATCH v3 6/7] ARM: dma: implement set_arch_dma_coherent

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Date:	Thu, 1 May 2014 19:58:22 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Santosh Shilimkar <santosh.shilimkar@...com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Grygorii Strashko <grygorii.strashko@...com>
Subject: Re: [PATCH v3 6/7] ARM: dma: implement set_arch_dma_coherent_ops()

On Thu, Apr 24, 2014 at 10:30 AM, Santosh Shilimkar
<santosh.shilimkar@...com> wrote:
> Implement the set_arch_dma_coherent_ops() for ARM architecture.
>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Olof Johansson <olof@...om.net>
> Cc: Grant Likely <grant.likely@...aro.org>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@...com>

Reviewed-by: Rob Herring <robh@...nel.org>

> ---
>  arch/arm/include/asm/dma-mapping.h |    7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
> index 424fda9..1965cd8 100644
> --- a/arch/arm/include/asm/dma-mapping.h
> +++ b/arch/arm/include/asm/dma-mapping.h
> @@ -118,6 +118,13 @@ static inline unsigned long dma_max_pfn(struct device *dev)
>  }
>  #define dma_max_pfn(dev) dma_max_pfn(dev)
>
> +static inline int set_arch_dma_coherent_ops(struct device *dev)
> +{
> +       set_dma_ops(dev, &arm_coherent_dma_ops);
> +       return 0;
> +}
> +#define set_arch_dma_coherent_ops(dev) set_arch_dma_coherent_ops(dev)
> +
>  static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
>  {
>         unsigned int offset = paddr & ~PAGE_MASK;
> --
> 1.7.9.5
>
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