From: Tiago Vignatti <tiago.vignatti@intel.com>
To: "Hwang, Dongseong" <dongseong.hwang@intel.com>
Cc: daniel.thompson@linaro.org, daniel.vetter@ffwll.ch,
thellstrom@vmware.com, dri-devel@lists.freedesktop.org,
jglisse@redhat.com, Daniel Vetter <daniel.vetter@intel.com>
Subject: Re: [PATCH 3/6] dma-buf: Add ioctls to allow userspace to flush
Date: Thu, 27 Aug 2015 16:53:29 -0300 [thread overview]
Message-ID: <55DF6AB9.3030508@intel.com> (raw)
In-Reply-To: <CAFVCBbFjmBJPA+tTbKMM9cqetP7hRVUzayMxp3rYGctRj_YxQw@mail.gmail.com>
On 08/27/2015 09:06 AM, Hwang, Dongseong wrote:
> On Thu, Aug 27, 2015 at 2:29 AM, Tiago Vignatti
>> +#define DMA_BUF_BASE 'b'
>
> 'b' is occupied by vme and qat driver;
> https://github.com/torvalds/linux/blob/master/Documentation/ioctl/ioctl-number.txt#L201
I believe this is alright, as noted in that txt file: "Because of the
large number of drivers, many drivers share a partial letter with other
drivers".
> is it bad idea for drm.h to include these definition?
> http://lxr.free-electrons.com/source/include/uapi/drm/drm.h#L684
this is not a drm code and other type of device drivers might want to
use it as well.
Tiago
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next prev parent reply other threads:[~2015-08-27 19:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-26 23:29 [PATCH v5] mmap on the dma-buf directly Tiago Vignatti
2015-08-26 23:29 ` [PATCH 1/6] drm: prime: Honour O_RDWR during prime-handle-to-fd Tiago Vignatti
2015-08-27 16:36 ` Emil Velikov
2015-08-27 18:19 ` Tiago Vignatti
2015-08-26 23:29 ` [PATCH 2/6] dma-buf: Remove range-based flush Tiago Vignatti
2015-08-26 23:29 ` [PATCH 3/6] dma-buf: Add ioctls to allow userspace to flush Tiago Vignatti
2015-08-27 8:03 ` Chris Wilson
2015-08-27 19:58 ` Tiago Vignatti
2015-08-27 12:06 ` Hwang, Dongseong
2015-08-27 19:53 ` Tiago Vignatti [this message]
2015-08-26 23:29 ` [PATCH 4/6] dma-buf: DRAFT: Make SYNC mandatory when userspace mmap Tiago Vignatti
2015-08-26 23:29 ` [PATCH 5/6] drm/i915: Implement end_cpu_access Tiago Vignatti
2015-08-26 23:29 ` [PATCH 6/6] drm/i915: Use CPU mapping for userspace dma-buf mmap() Tiago Vignatti
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