[PATCH] drm/amdgpu: Make KIQ read/write register routine be atomic

[Christian König]

Am 30.06.2017 um 03:21 schrieb Michel Dänzer:
> On 30/06/17 06:08 AM, Shaoyun Liu wrote:
>> 1. Use spin lock instead of mutex in KIQ
>> 2. Directly write to KIQ fence address instead of using fence_emit()
>> 3. Disable the interrupt for KIQ read/write and use CPU polling
> This list indicates that this patch should be split up in at least three
> patches. :)
Yeah, apart from that is is not a good idea to mess with the fence 
internals directly in the KIQ code, please add a helper in the fence 
code for this.

Regards,
Christian.