> -----Original Message----- > From: Gabbay, Oded > Sent: Thursday, January 29, 2015 2:46 AM > To: Alex Deucher; dri-devel@xxxxxxxxxxxxxxxxxxxxx > Cc: Deucher, Alexander; stable@xxxxxxxxxxxxxxx > Subject: Re: [PATCH] drm/radeon: don't init gpuvm if accel is disabled > > > > On 01/28/2015 09:41 PM, Alex Deucher wrote: > > If acceleration is disabled, it does not make sense > > to init gpuvm since nothing will use it. Moreover, > > if radeon_vm_init() gets called it uses accel to try > > and clear the pde tables, etc. which results in a bug. > > > > Bug: > > https://bugs.freedesktop.org/show_bug.cgi?id=88786 > > > > Signed-off-by: Alex Deucher<alexander.deucher@xxxxxxx> > > Cc:stable@xxxxxxxxxxxxxxx > Alex, > What is accel ? If the ring tests fail and for some reason the IPs (e.g., gfx or sdma) are not available, the driver disables acceleration and basically falls back to modesetting only. > Is there a situation where accel is disabled and HSA should work ? e.g. > headless > mode ? No. We only disable acceleration if we can't get the IPs (gfx, sdma) initialized. Headless has nothing to do with acceleration in this context. Alex _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
