Re: [PATCH] drm/amd/display: Handle GPU reset for DC block

2020-05-22 Thread Kazlauskas, Nicholas
On 2020-05-22 10:45 a.m., Alex Deucher wrote: On Thu, May 21, 2020 at 5:39 PM Bhawanpreet Lakha wrote: [Why] Previously we used the s3 codepath for gpu reset. This can lead to issues in certain case where we end of waiting for fences which will never come (because parts of the hw are off due t

Re: [PATCH] drm/amd/display: Handle GPU reset for DC block

2020-05-22 Thread Alex Deucher
On Thu, May 21, 2020 at 5:39 PM Bhawanpreet Lakha wrote: > > [Why] > Previously we used the s3 codepath for gpu reset. This can lead to issues in > certain case where we end of waiting for fences which will never come (because > parts of the hw are off due to gpu reset) and we end up waiting forev

[PATCH] drm/amd/display: Handle GPU reset for DC block

2020-05-21 Thread Bhawanpreet Lakha
[Why] Previously we used the s3 codepath for gpu reset. This can lead to issues in certain case where we end of waiting for fences which will never come (because parts of the hw are off due to gpu reset) and we end up waiting forever causing a deadlock. [How] Handle GPU reset separately from norma

Re: [PATCH] drm/amd/display: Handle GPU reset for DC block

2020-05-20 Thread Kazlauskas, Nicholas
On 2020-05-20 11:29 a.m., Bhawanpreet Lakha wrote: [Why] Previously we used the s3 codepath for gpu reset. This can lead to issues in certain case where we end of waiting for fences which will never come (because parts of the hw are off due to gpu reset) and we end up waiting forever causing a de

[PATCH] drm/amd/display: Handle GPU reset for DC block

2020-05-20 Thread Bhawanpreet Lakha
[Why] Previously we used the s3 codepath for gpu reset. This can lead to issues in certain case where we end of waiting for fences which will never come (because parts of the hw are off due to gpu reset) and we end up waiting forever causing a deadlock. [How] Handle GPU reset separately from norma