| Bug ID | 105324 |
|---|---|
| Summary | R9 285 weston hangs since drm/amd/pp: Fix bug that dpm level was not really locked |
| Product | DRI |
| Version | DRI git |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | adf.lists@gmail.com |
R9 285 Tonga, testing with amdgpu.dc=0 on agd5f 4.17-wip Since commit a02497b73218f10f237d98fb10d34d0baed607a0 Author: Rex Zhu <Rex.Zhu@amd.com> Date: Fri Feb 9 16:47:53 2018 +0800 drm/amd/pp: Fix bug that dpm level was not really locked Lock the dpm levels when we use SW method to modify the dpm tables directly to avoid a possible race with the smu. weston may hang display on start/quit/vt switch SysRq works and logged will be errors like - Mar 2 00:19:03 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:03 ph4 kernel: failed to send message 18b ret is 0 Mar 2 00:19:03 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:03 ph4 kernel: failed to send pre message 18a ret is 0 Mar 2 00:19:04 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:04 ph4 kernel: failed to send message 18a ret is 0 Mar 2 00:19:04 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:04 ph4 kernel: failed to send pre message 18c ret is 0 Mar 2 00:19:04 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:04 ph4 kernel: failed to send message 18c ret is 0 Mar 2 00:19:05 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:05 ph4 kernel: failed to send pre message 145 ret is 0 Mar 2 00:19:05 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:05 ph4 kernel: failed to send message 145 ret is 0 Mar 2 00:19:06 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:06 ph4 kernel: failed to send pre message 146 ret is 0 Mar 2 00:19:06 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:06 ph4 kernel: failed to send message 146 ret is 0 Mar 2 00:19:07 ph4 kernel: amdgpu: [powerplay] Mar 2 00:19:07 ph4 kernel: failed to send pre message 148 ret is 0
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