[U-Boot] [PATCH RESEND] video:cache:fix: Buffer alignment and dcache flush for lcd subsystem

[Wolfgang Denk]

Dear Simon,

In message <CAPnjgZ1X+anT6x4C0D6ZCoB3VvVVm1aBudkrcGkxg122F8XGmQ at mail.gmail.com> you wrote:
> 
> > I don't think this is as it should be.  Any frame buffer that actually
> > gets used as such should be located in the memory area specifically
> > allocated for this purpose using lcd_setmem().  This is especially
> > important when you load a splash screen image and intend to display it
> > flicker-free when booting an OS.  If you use malloc() or memalign(),
> > it will be memory in the malloc arena, which gets overwritten when an
> > OS boots, resulting in a corrupted display.
> >
> > Note: I added Anatolij, our video custodian to the Cc: list.
> 
> OK, well in that case we should deprecate this business of using a
> separate memory buffer as a frame buffer, and make people uncompress
> the BMP to the normal frame buffer. It would simplify a few things and
> I doubt there would be a speed penalty (or at least it could be
> corrected by decompressing directly to the frame buffer).

Agreed - thanks!

Best regards,

Wolfgang Denk

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