[pull] radeon drm-fixes-3.15

[Deucher, Alexander]

> -----Original Message-----
> From: Koenig, Christian
> Sent: Monday, May 19, 2014 4:50 AM
> To: Dave Airlie
> Cc: Deucher, Alexander; dri-devel at lists.freedesktop.org
> Subject: Re: [pull] radeon drm-fixes-3.15
> 
> Am 19.05.2014 01:04, schrieb Dave Airlie:
> > On 16 May 2014 23:54, Christian König <christian.koenig at amd.com> wrote:
> >> Hi Dave,
> >>
> >> this is the next pull quested for stashed up radeon fixes for 3.15.
> >>
> >> Highlights are:
> >> 1. Avoid sending SIGBUS on CPU access just because kernel can't handle
> >> buffer placement.
> >> 2. Some fixes for VM page table updates and buffer placements.
> >> 3. Fixing two typos in the PLL and SI register spec.
> >> 4. Checking VCE buffers ranges.
> >> 5. Adding a mutex for I2C access.
> >> 6. Mullins and non-VGA pci class fixes from Alex.
> > This is starting to feel a bit large, we should be in regression
> > fixing, oopses and black screens at this point,
> >
> > The main ones I'm concerned about are the VCE buffer ranges and i2c
> > mutex, whether these fix known problems or issues,
> 
> For the VCE buffer range checks that fixed a lockup I experienced while
> working on the userspace driver (VCE writing over the end of a buffer
> into an shader, GPU then trying to execute the messed up shader
> code...). Apart from that VCE is a new feature for 3.15 so we can't
> really break it compared to 3.14.
> 
> I can't judge on the I2C mutex since that was Alex suggestion and I'm
> not sure how invasive and/or necessary this is.

The i2c mutex can wait for 3.16 if need be.  I don't know of any actual bugs it fixes.

Alex

> 
> Regards,
> Christian.
> 
> >
> > Dave.