drm/nouveau: Use the software object for fencing.

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This should avoid a race condition on nv0x, if we're doing it with
actual PGRAPH objects and a there's a fence within the FIFO DMA fetch
area when a context switch kicks in.

In that case we get an ILLEGAL_MTHD interrupt as expected, but the
values in PGRAPH_TRAPPED_ADDR aren't calculated correctly and they're
almost useless (e.g. you can see ILLEGAL_MTHDs for the now inactive
channel, with a wrong offset/data pair).

Signed-off-by: Francisco Jerez <currojerez@riseup.net>

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This commit is contained in:

Francisco Jerez 2009-12-26 02:09:36 +01:00 • committed by Ben Skeggs

parent f03a314b46

commit 8c032ce73e

2 changed files with 4 additions and 3 deletions

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2

drivers/gpu/drm/nouveau/nouveau_fence.c

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5

drivers/gpu/drm/nouveau/nv04_graph.c

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