From: Will Deacon <will.deacon@arm.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"konrad.wilk@oracle.com" <konrad.wilk@oracle.com>,
"Ian.Campbell@citrix.com" <Ian.Campbell@citrix.com>
Subject: Re: [PATCH v8 02/17] arm64: define DMA_ERROR_CODE
Date: Thu, 10 Oct 2013 10:44:39 +0100 [thread overview]
Message-ID: <20131010094439.GE3817@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <1381351710-1876-2-git-send-email-stefano.stabellini@eu.citrix.com>
On Wed, Oct 09, 2013 at 09:48:15PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> CC: will.deacon@arm.com
> ---
> arch/arm64/include/asm/dma-mapping.h | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
> index 8d18100..c2cb8a0 100644
> --- a/arch/arm64/include/asm/dma-mapping.h
> +++ b/arch/arm64/include/asm/dma-mapping.h
> @@ -25,6 +25,7 @@
>
> #define ARCH_HAS_DMA_GET_REQUIRED_MASK
>
> +#define DMA_ERROR_CODE (~0)
Hmm, is this guaranteed to be large enough for a dma_addr_t? Other 64-bit
architectures using a non-zero error code cast to dma_addr_t before the
negation.
Will
next prev parent reply other threads:[~2013-10-10 9:45 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-09 20:47 [PATCH v7 0/17] enable swiotlb-xen on arm and arm64 Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 01/17] arm: make SWIOTLB available Stefano Stabellini
2013-10-10 9:43 ` Will Deacon
2013-10-15 15:45 ` Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 02/17] arm64: define DMA_ERROR_CODE Stefano Stabellini
2013-10-10 9:44 ` Will Deacon [this message]
2013-10-15 15:46 ` Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 03/17] arm/xen,arm64/xen: introduce p2m Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 04/17] xen/x86: allow __set_phys_to_machine for autotranslate guests Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 05/17] xen: make xen_create_contiguous_region return the dma address Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 06/17] xen/arm,arm64: enable SWIOTLB_XEN Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 07/17] swiotlb-xen: introduce xen_swiotlb_set_dma_mask Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 08/17] arm/xen: get_dma_ops: return xen_dma_ops if we are running as xen_initial_domain Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 09/17] arm64/xen: " Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 10/17] xen: introduce xen_alloc/free_coherent_pages Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 11/17] swiotlb-xen: use xen_alloc/free_coherent_pages Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 12/17] xen: introduce xen_dma_map/unmap_page and xen_dma_sync_single_for_cpu/device Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 13/17] swiotlb-xen: use xen_dma_map/unmap_page, xen_dma_sync_single_for_cpu/device Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 14/17] ASoC: Samsung: Rename dma_ops by samsung_dma_ops Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 15/17] swiotlb: print a warning when the swiotlb is full Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 16/17] arm,arm64: do not always merge biovec if we are running on Xen Stefano Stabellini
2013-10-09 20:48 ` [PATCH v8 17/17] grant-table: call set_phys_to_machine after mapping grant refs Stefano Stabellini
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