Re: [PATCH] drm/amdgpu: increase IH ring buffer size to avoid overflow

2017-03-16 Thread Christian König
Am 16.03.2017 um 02:34 schrieb Alex Deucher: On Wed, Mar 15, 2017 at 5:05 PM, Andres Rodriguez wrote: Hey Alex, Christian, On a slightly unrelated note. Have you also considered using system_highpri_wq instead of system_wq for the delayed interrupt work? There is a potential for multi-ms lat

Re: [PATCH] drm/amdgpu: increase IH ring buffer size to avoid overflow

2017-03-15 Thread Alex Deucher
On Wed, Mar 15, 2017 at 5:05 PM, Andres Rodriguez wrote: > Hey Alex, Christian, > > On a slightly unrelated note. > > Have you also considered using system_highpri_wq instead of system_wq > for the delayed interrupt work? > > There is a potential for multi-ms latency for systems under high CPU > l

Re: [PATCH] drm/amdgpu: increase IH ring buffer size to avoid overflow

2017-03-15 Thread Andres Rodriguez
Hey Alex, Christian, On a slightly unrelated note. Have you also considered using system_highpri_wq instead of system_wq for the delayed interrupt work? There is a potential for multi-ms latency for systems under high CPU load. And that is usually the case when users are running games. Regards,

[PATCH] drm/amdgpu: increase IH ring buffer size to avoid overflow

2017-03-15 Thread Alex Deucher
From: "Roger.He" We originally limited the IH to 4k on tonga since it uses bus addresses directly rather than GPU MC addresses, so it needs contigous physical memory. This brings it inline with other asics. Signed-off-by: Roger.He Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drive