Re: [PATCH] drm/vc4: Allow using more than 256MB of CMA memory.

2017-04-14 Thread Eric Anholt
Boris Brezillon writes: > On Mon, 27 Mar 2017 16:10:25 -0700 > Eric Anholt wrote: > >> Until now, we've had to limit Raspberry Pi to 256MB of CMA memory to >> keep from triggering the hardware addressing bug between of the tile >> binner of the tile alloc memory (where the top 4 bits come from t

Re: [PATCH] drm/vc4: Allow using more than 256MB of CMA memory.

2017-04-14 Thread Boris Brezillon
On Mon, 27 Mar 2017 16:10:25 -0700 Eric Anholt wrote: > Until now, we've had to limit Raspberry Pi to 256MB of CMA memory to > keep from triggering the hardware addressing bug between of the tile > binner of the tile alloc memory (where the top 4 bits come from the > tile state data array's addre

Re: [PATCH] drm/vc4: Allow using more than 256MB of CMA memory.

2017-04-12 Thread Eric Anholt
Eric Anholt writes: > Until now, we've had to limit Raspberry Pi to 256MB of CMA memory to > keep from triggering the hardware addressing bug between of the tile > binner of the tile alloc memory (where the top 4 bits come from the > tile state data array's address). > > To work around that and a

[PATCH] drm/vc4: Allow using more than 256MB of CMA memory.

2017-03-27 Thread Eric Anholt
Until now, we've had to limit Raspberry Pi to 256MB of CMA memory to keep from triggering the hardware addressing bug between of the tile binner of the tile alloc memory (where the top 4 bits come from the tile state data array's address). To work around that and allow more memory to be reserved f