erdev.osuosl.org; dri-de...@lists.freedesktop.org;
>linaro-mm-...@lists.linaro.org; linux-ker...@vger.kernel.org
>Subject: Re: [PATCH] staging: android: ion: add buffer flag update ioctl
>
>On 1/3/19 5:42 PM, Zengtao (B) wrote:
>>> -Original Message-
>>> From: Laura Abbott [
...@driverdev.osuosl.org; dri-de...@lists.freedesktop.org;
linaro-mm-...@lists.linaro.org; linux-ker...@vger.kernel.org
Subject: Re: [PATCH] staging: android: ion: add buffer flag update ioctl
On 12/23/18 6:47 PM, Zengtao (B) wrote:
Hi laura:
-Original Message-
From: Laura Abbott [mailto:labb
erdev.osuosl.org; dri-de...@lists.freedesktop.org;
>linaro-mm-...@lists.linaro.org; linux-ker...@vger.kernel.org
>Subject: Re: [PATCH] staging: android: ion: add buffer flag update ioctl
>
>On 12/23/18 6:47 PM, Zengtao (B) wrote:
>> Hi laura:
>>
>>> -Original Messa
;
de...@driverdev.osuosl.org; dri-de...@lists.freedesktop.org;
linaro-mm-...@lists.linaro.org; linux-ker...@vger.kernel.org
Subject: Re: [PATCH] staging: android: ion: add buffer flag update ioctl
On 12/19/18 5:39 PM, Zengtao (B) wrote:
Hi laura:
-Original Message-
From: Laura Abbott
erdev.osuosl.org; dri-de...@lists.freedesktop.org;
>linaro-mm-...@lists.linaro.org; linux-ker...@vger.kernel.org
>Subject: Re: [PATCH] staging: android: ion: add buffer flag update ioctl
>
>On 12/19/18 5:39 PM, Zengtao (B) wrote:
>> Hi laura:
>>
>>> -
;
de...@driverdev.osuosl.org; dri-de...@lists.freedesktop.org;
linaro-mm-...@lists.linaro.org; linux-ker...@vger.kernel.org
Subject: Re: [PATCH] staging: android: ion: add buffer flag update ioctl
On 12/19/18 9:19 AM, Zeng Tao wrote:
In some usecases, the buffer cached attribute is not determined
riverdev.osuosl.org; dri-de...@lists.freedesktop.org;
>linaro-mm-...@lists.linaro.org; linux-ker...@vger.kernel.org
>Subject: Re: [PATCH] staging: android: ion: add buffer flag update ioctl
>
>On 12/19/18 9:19 AM, Zeng Tao wrote:
>> In some usecases, the buffer cached attribute is
On 12/19/18 9:19 AM, Zeng Tao wrote:
In some usecases, the buffer cached attribute is not determined at
allocation time, it's determined just before the real cpu mapping.
And from the memory view of point, a buffer should not have the cached
attribute util is really mapped by the cpu. So in this
Hi Zeng,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.20-rc7 next-20181219]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
In some usecases, the buffer cached attribute is not determined at
allocation time, it's determined just before the real cpu mapping.
And from the memory view of point, a buffer should not have the cached
attribute util is really mapped by the cpu. So in this patch, we
introduced the new ioctl
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