Re: ARM: OMPA4+: is it expected dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); to fail?

2015-03-10 Thread Russell King - ARM Linux
On Fri, Mar 06, 2015 at 11:47:48PM +0200, grygorii.stras...@linaro.org wrote: Hi Russell, On 03/05/2015 10:17 PM, Russell King - ARM Linux wrote: On Thu, Mar 05, 2015 at 08:55:07PM +0200, grygorii.stras...@linaro.org wrote: The dma_coerce_mask_and_coherent() will fail in case 'Example

Re: ARM: OMPA4+: is it expected dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); to fail?

2015-03-10 Thread grygorii.stras...@linaro.org
Hi Russell, On 03/10/2015 01:05 PM, Russell King - ARM Linux wrote: On Fri, Mar 06, 2015 at 11:47:48PM +0200, grygorii.stras...@linaro.org wrote: On 03/05/2015 10:17 PM, Russell King - ARM Linux wrote: On Thu, Mar 05, 2015 at 08:55:07PM +0200, grygorii.stras...@linaro.org wrote: The

Re: ARM: OMPA4+: is it expected dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); to fail?

2015-03-10 Thread grygorii.stras...@linaro.org
Hi Arnd, On 03/09/2015 11:33 PM, Arnd Bergmann wrote: On Thursday 05 March 2015 20:55:07 grygorii.stras...@linaro.org wrote: Hi All, Now I can see very interesting behavior related to dma_coerce_mask_and_coherent() and friends which I'd like to explain and clarify. Below is set of

Re: ARM: OMPA4+: is it expected dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); to fail?

2015-03-09 Thread Arnd Bergmann
On Thursday 05 March 2015 20:55:07 grygorii.stras...@linaro.org wrote: Hi All, Now I can see very interesting behavior related to dma_coerce_mask_and_coherent() and friends which I'd like to explain and clarify. Below is set of questions I have (why - I explained below): - Is expected

Re: ARM: OMPA4+: is it expected dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); to fail?

2015-03-06 Thread grygorii.stras...@linaro.org
Hi Russell, On 03/05/2015 10:17 PM, Russell King - ARM Linux wrote: On Thu, Mar 05, 2015 at 08:55:07PM +0200, grygorii.stras...@linaro.org wrote: Now I can see very interesting behavior related to dma_coerce_mask_and_coherent() and friends which I'd like to explain and clarify. Below is

Re: ARM: OMPA4+: is it expected dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); to fail?

2015-03-05 Thread Russell King - ARM Linux
On Thu, Mar 05, 2015 at 08:55:07PM +0200, grygorii.stras...@linaro.org wrote: Now I can see very interesting behavior related to dma_coerce_mask_and_coherent() and friends which I'd like to explain and clarify. Below is set of questions I have (why - I explained below): - Is expected

ARM: OMPA4+: is it expected dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64)); to fail?

2015-03-05 Thread grygorii.stras...@linaro.org
Hi All, Now I can see very interesting behavior related to dma_coerce_mask_and_coherent() and friends which I'd like to explain and clarify. Below is set of questions I have (why - I explained below): - Is expected dma_coerce_mask_and_coherent(DMA_BIT_MASK(64)) and friends to fail on 32 bits