On 2024-11-28 at 14:34:52 +0200, Ville Syrjälä wrote: > On Wed, Nov 27, 2024 at 03:56:27PM +0000, Sebastian Brzezinka wrote: > > > > Hi Ville > > > > I found your patch looking at issue VLK-65591, seems like for some reason > > cannot apply this workaround on JasperLake and end up with an error: > > > > ``` > > <3> [463.126159] i915 0000:00:02.0: [drm] ERROR GT0: engine workaround lost on application! (reg[7000]=0x0, relevant bits were 0x0 vs expected 0x8000) > > > > ``` > > > > When the workaround is verified, 15th bit is not set. Is it possible that > > this workaround is not available ? I would be grateful for any tips. > > I suppose it's possible the spec is wrong and the bit doesn't exist, or > perhaps it's only present on some steppings. Shrug. > > I'm not seeing any problems being reported in CI however, so I'm a bit > confused where these are happening? > > -- > Ville Syrjälä > Intel Here is entry from CI bug log: https://gfx-ci.igk.intel.com/cibuglog-ng/issue/15525?query_key=ee712195d52aee24d7314c241ebbf8a8fd9d7370 This error is only reported when debug is enabled, and even then it doesn't fail the test. -- Best regards, Sebastian Brzezinka