On 25.08.2014 23:48, Meelis Roos wrote: >> r100 init hangs in a different place. Original dmesg first, then my >> instrumented dmesg (seems to get further): > > The instrumented dmesg had a couple of my local test changes and was > bad now that I had ROM. Reverted them exept my readb changes (instead > of direct dereferences of iomapped space) and redid > logging to be more precise. > >> [drm] radeon kernel modesetting enabled. >> PCI: Enabling device: (0000:02:02.0), cmd 82 >> [drm] initializing kernel modesetting (RV100 0x1002:0x5159 0x1002:0x0908). >> [drm] register mmio base: 0x10000000 >> [drm] register mmio size: 32768 >> [drm:radeon_device_init] *ERROR* Unable to find PCI I/O BAR > > This was still the unchanged kernel hanging. > > Below is a new debug log to pinpoint the hang. It seems to hang in > r100_gfx_get_rptr but not on first try.
It's most likely hanging in readl() in r100_mm_rreg() then. -- Earthling Michel D?nzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
