[Intel-gfx] [RFC PATCH 3/3] libdrm: user mode helper for ipvr drm driver

Emil Velikov emil.l.velikov at gmail.com
Thu Oct 16 17:20:22 CEST 2014


On 16/10/14 15:33, Cheng, Yao wrote:
> Hi Emil,
> Sorry, what do you mean by "correctly aligned"? does it mean the paddings in this data structure?
> 
Afaict for compatibility reasons the struct size have to be "aligned"
(multiple of 8 bytes), or if you prefer - the struct is missing the
required padding :) I've only skimmed through the patch so it may be
that other structs are having this issue.

Cheers,
Emil

>> -----Original Message-----
>> From: Emil Velikov [mailto:emil.l.velikov at gmail.com]
>> Sent: Wednesday, October 15, 2014 5:24 PM
>> To: Cheng, Yao; intel-gfx at lists.freedesktop.org
>> Cc: emil.l.velikov at gmail.com; Jiang, Fei; dri-devel at lists.freedesktop.org;
>> Vetter, Daniel
>> Subject: Re: [RFC PATCH 3/3] libdrm: user mode helper for ipvr drm driver
>>
>> Hi Yao,
>>
>> struct drm_ipvr_gem_userptr does not seem to be correctly aligned - is
>> that intentional ? Might be worth checking if anything else in
>> ipvr_drm.h and ipvr_bufmgr.h is in the same boat.
>>
>> Cheers,
>> Emil
>>




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