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drm/nv50/pm: wait for all fifo-connected engines to idle before reclocking 

Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Martin Peres 2012-01-09 15:23:10 +10:00 committed by Ben Skeggs
parent 496a73bbec
commit c57ebf5ef3
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/nouveau/nv50_pm.c
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@ -798,6 +798,8 @@ nv50_pm_clocks_set(struct drm_device *dev, void *data)
nv_mask(dev, 0x002504, 0x00000001, 0x00000001);
if (!nv_wait(dev, 0x002504, 0x00000010, 0x00000010))
goto resume;
if (!nv_wait(dev, 0x00251c, 0x0000003f, 0x0000003f))
goto resume;
/* program memory clock, if necessary - must come before engine clock
* reprogramming due to how we construct the hwsq scripts in pre()