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From: Clemens Ladisch <clemens@ladisch.de>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org, linaro-mm-sig@lists.linaro.org,
	linux-mm@kvack.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	David Gibson <david@gibson.dropbear.id.au>,
	Subash Patel <subash.ramaswamy@linaro.org>,
	Sumit Semwal <sumit.semwal@linaro.org>
Subject: Re: [PATCH] common: dma-mapping: add support for generic dma_mmap_* calls
Date: Fri, 29 Jun 2012 13:09:55 +0200	[thread overview]
Message-ID: <4FED8D03.10507@ladisch.de> (raw)
In-Reply-To: <1339741135-7841-1-git-send-email-m.szyprowski@samsung.com>

Marek Szyprowski wrote:
> +++ b/drivers/base/dma-mapping.c
> ...
> +int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
> +		    void *cpu_addr, dma_addr_t dma_addr, size_t size)
> +{
> +	int ret = -ENXIO;
> +	...
> +	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
> +		return ret;

This will return -ENXIO if dma_mmap_from_coherent() succeeds.


Regards,
Clemens

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WARNING: multiple messages have this Message-ID (diff)
From: Clemens Ladisch <clemens@ladisch.de>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org, linaro-mm-sig@lists.linaro.org,
	linux-mm@kvack.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	David Gibson <david@gibson.dropbear.id.au>,
	Subash Patel <subash.ramaswamy@linaro.org>,
	Sumit Semwal <sumit.semwal@linaro.org>
Subject: Re: [PATCH] common: dma-mapping: add support for generic dma_mmap_* calls
Date: Fri, 29 Jun 2012 13:09:55 +0200	[thread overview]
Message-ID: <4FED8D03.10507@ladisch.de> (raw)
Message-ID: <20120629110955.n6FtGaRMhUJcLn69pdcp012gb075aguUY1Lt6aYELr4@z> (raw)
In-Reply-To: <1339741135-7841-1-git-send-email-m.szyprowski@samsung.com>

Marek Szyprowski wrote:
> +++ b/drivers/base/dma-mapping.c
> ...
> +int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
> +		    void *cpu_addr, dma_addr_t dma_addr, size_t size)
> +{
> +	int ret = -ENXIO;
> +	...
> +	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
> +		return ret;

This will return -ENXIO if dma_mmap_from_coherent() succeeds.


Regards,
Clemens

WARNING: multiple messages have this Message-ID (diff)
From: Clemens Ladisch <clemens@ladisch.de>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: linux-arch@vger.kernel.org,
	Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Arnd Bergmann <arnd@arndb.de>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Subash Patel <subash.ramaswamy@linaro.org>,
	linux-kernel@vger.kernel.org, linaro-mm-sig@lists.linaro.org,
	linux-mm@kvack.org, Kyungmin Park <kyungmin.park@samsung.com>,
	linuxppc-dev@lists.ozlabs.org,
	Sumit Semwal <sumit.semwal@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [PATCH] common: dma-mapping: add support for generic dma_mmap_* calls
Date: Fri, 29 Jun 2012 13:09:55 +0200	[thread overview]
Message-ID: <4FED8D03.10507@ladisch.de> (raw)
In-Reply-To: <1339741135-7841-1-git-send-email-m.szyprowski@samsung.com>

Marek Szyprowski wrote:
> +++ b/drivers/base/dma-mapping.c
> ...
> +int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
> +		    void *cpu_addr, dma_addr_t dma_addr, size_t size)
> +{
> +	int ret = -ENXIO;
> +	...
> +	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
> +		return ret;

This will return -ENXIO if dma_mmap_from_coherent() succeeds.


Regards,
Clemens

WARNING: multiple messages have this Message-ID (diff)
From: clemens@ladisch.de (Clemens Ladisch)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] common: dma-mapping: add support for generic dma_mmap_* calls
Date: Fri, 29 Jun 2012 13:09:55 +0200	[thread overview]
Message-ID: <4FED8D03.10507@ladisch.de> (raw)
In-Reply-To: <1339741135-7841-1-git-send-email-m.szyprowski@samsung.com>

Marek Szyprowski wrote:
> +++ b/drivers/base/dma-mapping.c
> ...
> +int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
> +		    void *cpu_addr, dma_addr_t dma_addr, size_t size)
> +{
> +	int ret = -ENXIO;
> +	...
> +	if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret))
> +		return ret;

This will return -ENXIO if dma_mmap_from_coherent() succeeds.


Regards,
Clemens

  reply	other threads:[~2012-06-29 11:09 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-15  6:18 [PATCH] common: dma-mapping: add support for generic dma_mmap_* calls Marek Szyprowski
2012-06-15  6:18 ` Marek Szyprowski
2012-06-15  6:18 ` Marek Szyprowski
2012-06-15  6:18 ` Marek Szyprowski
2012-06-29 11:09 ` Clemens Ladisch [this message]
2012-06-29 11:09   ` Clemens Ladisch
2012-06-29 11:09   ` Clemens Ladisch
2012-06-29 11:09   ` Clemens Ladisch
2012-06-29 13:00   ` Marek Szyprowski
2012-06-29 13:00     ` Marek Szyprowski
2012-06-29 13:00     ` Marek Szyprowski
2012-06-29 13:00     ` Marek Szyprowski
2012-06-29 13:16     ` Clemens Ladisch
2012-06-29 13:16       ` Clemens Ladisch
2012-06-29 13:16       ` Clemens Ladisch
2012-06-29 13:16       ` Clemens Ladisch

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