On Fri, 2009-11-06 at 16:14 +0100, Francisco Jerez wrote:
> Fix a somewhat indeterministic corruption problem on nv17 when there
> is stuff going on the other fifos (e.g. gallium but I've also
> reproduced it with an app just SIFM-ing memory around): in some cases
> it made the blits the X server had scheduled fail corrupting the
> nearby screen areas.
>
> Signed-off-by: Francisco Jerez <[email protected]>
Reviewed-by: Ben Skeggs <[email protected]>
> ---
> src/nv04_exa.c | 6 ++++++
> 1 files changed, 6 insertions(+), 0 deletions(-)
>
> diff --git a/src/nv04_exa.c b/src/nv04_exa.c
> index 71a4ac2..f4966a4 100644
> --- a/src/nv04_exa.c
> +++ b/src/nv04_exa.c
> @@ -209,10 +209,16 @@ NV04EXAPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr
> pDstPixmap, int dx, int dy,
> MARK_UNDO(chan);
> return FALSE;
> }
> +
> + BEGIN_RING(chan, blit, NV04_IMAGE_BLIT_SURFACE, 1);
> + OUT_RING (chan, pNv->NvContextSurfaces->handle);
> BEGIN_RING(chan, blit, NV04_IMAGE_BLIT_OPERATION, 1);
> OUT_RING (chan, 1); /* ROP_AND */
> +
> NV04EXASetROP(pScrn, alu, planemask);
> } else {
> + BEGIN_RING(chan, blit, NV04_IMAGE_BLIT_SURFACE, 1);
> + OUT_RING (chan, pNv->NvContextSurfaces->handle);
> BEGIN_RING(chan, blit, NV04_IMAGE_BLIT_OPERATION, 1);
> OUT_RING (chan, 3); /* SRCCOPY */
> }
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