diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_state.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_state.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index e779e9320453..e0811f93243d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -1126,8 +1126,9 @@ nouveau_ioctl_setparam(struct drm_device *dev, void *data, } /* Wait until (value(reg) & mask) == val, up until timeout has hit */ -bool nouveau_wait_until(struct drm_device *dev, uint64_t timeout, - uint32_t reg, uint32_t mask, uint32_t val) +bool +nouveau_wait_eq(struct drm_device *dev, uint64_t timeout, + uint32_t reg, uint32_t mask, uint32_t val) { struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; @@ -1141,6 +1142,23 @@ bool nouveau_wait_until(struct drm_device *dev, uint64_t timeout, return false; } +/* Wait until (value(reg) & mask) != val, up until timeout has hit */ +bool +nouveau_wait_ne(struct drm_device *dev, uint64_t timeout, + uint32_t reg, uint32_t mask, uint32_t val) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; + uint64_t start = ptimer->read(dev); + + do { + if ((nv_rd32(dev, reg) & mask) != val) + return true; + } while (ptimer->read(dev) - start < timeout); + + return false; +} + /* Waits for PGRAPH to go completely idle */ bool nouveau_wait_for_idle(struct drm_device *dev) { |