| Message ID | 20230719150112.1883903-1-koba.ko@canonical.com |
|---|---|
| Headers | show |
| Series | Fix AMDGPU: the screen freeze with W7500 | expand |
On 7/19/23 9:01 AM, Koba Ko wrote: > BugLink: https://bugs.launchpad.net/bugs/2027957 > > [impact] > While booting into OOBE, the screen freeze [AMD W7500 only] > > [fix] > AMDGPU would allocate pcie gen/lane dynamically after ASPM is enabled. > Intel CPU may not support the dynamic lane/speed switching. > > Solution is, > - Detect Intel x86 systems that don't support dynamic switching > - Override the input caps to maximum supported for that system > - Force all PCIe levels to use the same settings, rather than try to configure each level differently. > > [test cases] > 1. boot with w7500 > 2. the screen doesn't freeze and can't find the error message in dmesg. > "amdgpu: [drm] *ERROR* [CRTC:72:crtc-0] flip_done timed out" > > [where the issue could happen] > low, this could lead issue when setting higher speeds than supported. > > [Misc] > 1. jammy, amdgpu isn't loaded on this platform with 5.15-73-generic. > 2. kinetic, amdgpu failed to probe the vga controller with 5.19-46-generic. > 3. Passed cbd build against Mantic&Lunar. > 4. For Lunar, need modification for function sienna_cichlid_update_pcie_parameters, > so provide another patch for e701156ccc6c) drm/amd: Align SMU11 SMU_MSG_OverridePcieParameters. > ~~~ > V2: cherry-picked from linux-next > Acked-by: Tim Gardner <tim.gardner@canonical.com>
On 19.07.23 17:01, Koba Ko wrote: > BugLink: https://bugs.launchpad.net/bugs/2027957 > > [impact] > While booting into OOBE, the screen freeze [AMD W7500 only] > > [fix] > AMDGPU would allocate pcie gen/lane dynamically after ASPM is enabled. > Intel CPU may not support the dynamic lane/speed switching. > > Solution is, > - Detect Intel x86 systems that don't support dynamic switching > - Override the input caps to maximum supported for that system > - Force all PCIe levels to use the same settings, rather than try to configure each level differently. > > [test cases] > 1. boot with w7500 > 2. the screen doesn't freeze and can't find the error message in dmesg. > "amdgpu: [drm] *ERROR* [CRTC:72:crtc-0] flip_done timed out" > > [where the issue could happen] > low, this could lead issue when setting higher speeds than supported. > > [Misc] > 1. jammy, amdgpu isn't loaded on this platform with 5.15-73-generic. > 2. kinetic, amdgpu failed to probe the vga controller with 5.19-46-generic. > 3. Passed cbd build against Mantic&Lunar. > 4. For Lunar, need modification for function sienna_cichlid_update_pcie_parameters, > so provide another patch for e701156ccc6c) drm/amd: Align SMU11 SMU_MSG_OverridePcieParameters. > ~~~ > V2: cherry-picked from linux-next > Since I was ok with the first set (implicitly thinking we would update the SHA1/sob to linux-next). Acked-by: Stefan Bader <stefan.bader@canonical.com>
On Wed, Jul 19, 2023 at 11:01:07PM +0800, Koba Ko wrote: > BugLink: https://bugs.launchpad.net/bugs/2027957 > > [impact] > While booting into OOBE, the screen freeze [AMD W7500 only] > > [fix] > AMDGPU would allocate pcie gen/lane dynamically after ASPM is enabled. > Intel CPU may not support the dynamic lane/speed switching. > > Solution is, > - Detect Intel x86 systems that don't support dynamic switching > - Override the input caps to maximum supported for that system > - Force all PCIe levels to use the same settings, rather than try to configure each level differently. > > [test cases] > 1. boot with w7500 > 2. the screen doesn't freeze and can't find the error message in dmesg. > "amdgpu: [drm] *ERROR* [CRTC:72:crtc-0] flip_done timed out" > > [where the issue could happen] > low, this could lead issue when setting higher speeds than supported. > > [Misc] > 1. jammy, amdgpu isn't loaded on this platform with 5.15-73-generic. > 2. kinetic, amdgpu failed to probe the vga controller with 5.19-46-generic. > 3. Passed cbd build against Mantic&Lunar. > 4. For Lunar, need modification for function sienna_cichlid_update_pcie_parameters, > so provide another patch for e701156ccc6c) drm/amd: Align SMU11 SMU_MSG_OverridePcieParameters. Already applied to mantic/linux-unstable via periodic upstream rebase. -Andrea
On 19/07/2023 17:01, Koba Ko wrote: > BugLink: https://bugs.launchpad.net/bugs/2027957 > > [impact] > While booting into OOBE, the screen freeze [AMD W7500 only] > > [fix] > AMDGPU would allocate pcie gen/lane dynamically after ASPM is enabled. > Intel CPU may not support the dynamic lane/speed switching. > > Solution is, > - Detect Intel x86 systems that don't support dynamic switching > - Override the input caps to maximum supported for that system > - Force all PCIe levels to use the same settings, rather than try to configure each level differently. > > [test cases] > 1. boot with w7500 > 2. the screen doesn't freeze and can't find the error message in dmesg. > "amdgpu: [drm] *ERROR* [CRTC:72:crtc-0] flip_done timed out" > > [where the issue could happen] > low, this could lead issue when setting higher speeds than supported. > > [Misc] > 1. jammy, amdgpu isn't loaded on this platform with 5.15-73-generic. > 2. kinetic, amdgpu failed to probe the vga controller with 5.19-46-generic. > 3. Passed cbd build against Mantic&Lunar. > 4. For Lunar, need modification for function sienna_cichlid_update_pcie_parameters, > so provide another patch for e701156ccc6c) drm/amd: Align SMU11 SMU_MSG_OverridePcieParameters. > ~~~ > V2: cherry-picked from linux-next > Applied to lunar:master-next. Thanks! Roxana