On Wed, 24 Jan 2001, Petr Vandrovec wrote:

On 24 Jan 01 at 11:11, Ani Joshi wrote:

quoted

I recently ran into an issue with the matroxfb driver and XFree86 4.0.2's
matrox driver.  Sometime in the past someone decided to use BE
register access in matroxfb for BE machines, while this is probably The
Right Way, it produces problems in X.  I can use BE register access
macro's in X but it was causing problems with the engine, perhaps some DMA
issue although the dma BE bits are on.

Using big-endian on PPC was required by PPC users for compatibility with
existing XF[86][68]_FBDev servers. Are you sure that there are no problems
otherwise, and that it works correctly on all PReP/CHRP/???? architectures?

Nope it won't cause any problems, none of the XF[86][68]_FBDev servers where
accelerated for matrox, other libs (SDL etc) that have accel for matroxfb
don't work correctly for ppc either.

Changing the endian to little is the *right* thing, big-endian mode doesn't
offer us anything beyond problems in matroxfb 8/16 bit accesses become a
nightmare there...

  Kostas


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