Am 27.05.20 um 13:11 schrieb Daniel Vetter:
> For historical reasons it's called dev->num_crtcs, which is rather
> confusing ever since kms was added. But now we have a nice helper, so
> let's use it for better readability!
>
> Only code change is in atomic helpers: vblank support means that
> dev->irq_enabled must be set too. Another one of these quirky things
> ... But since it's implied we can simplify that check.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Cc: Maxime Ripard <mripard@xxxxxxxxxx>
> Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxx>
> Cc: Daniel Vetter <daniel@xxxxxxxx>
Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> ---
> drivers/gpu/drm/drm_atomic_helper.c | 2 +-
> drivers/gpu/drm/drm_irq.c | 2 +-
> drivers/gpu/drm/drm_vblank.c | 14 +++++++-------
> 3 files changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index 0a541368246e..bfcc7857a9a1 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -1097,7 +1097,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
> else if (funcs->dpms)
> funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
>
> - if (!(dev->irq_enabled && dev->num_crtcs))
> + if (!drm_dev_has_vblank(dev))
> continue;
>
> ret = drm_crtc_vblank_get(crtc);
> diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
> index 588be45abd7a..09d6e9e2e075 100644
> --- a/drivers/gpu/drm/drm_irq.c
> +++ b/drivers/gpu/drm/drm_irq.c
> @@ -181,7 +181,7 @@ int drm_irq_uninstall(struct drm_device *dev)
> * vblank/irq handling. KMS drivers must ensure that vblanks are all
> * disabled when uninstalling the irq handler.
> */
> - if (dev->num_crtcs) {
> + if (drm_dev_has_vblank(dev)) {
> spin_lock_irqsave(&dev->vbl_lock, irqflags);
> for (i = 0; i < dev->num_crtcs; i++) {
> struct drm_vblank_crtc *vblank = &dev->vblank[i];
> diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
> index e278d6407f8e..162d9f7e692a 100644
> --- a/drivers/gpu/drm/drm_vblank.c
> +++ b/drivers/gpu/drm/drm_vblank.c
> @@ -605,7 +605,7 @@ void drm_calc_timestamping_constants(struct drm_crtc *crtc,
> int linedur_ns = 0, framedur_ns = 0;
> int dotclock = mode->crtc_clock;
>
> - if (!dev->num_crtcs)
> + if (!drm_dev_has_vblank(dev))
> return;
>
> if (WARN_ON(pipe >= dev->num_crtcs))
> @@ -1065,7 +1065,7 @@ void drm_crtc_send_vblank_event(struct drm_crtc *crtc,
> unsigned int pipe = drm_crtc_index(crtc);
> ktime_t now;
>
> - if (dev->num_crtcs > 0) {
> + if (drm_dev_has_vblank(dev)) {
> seq = drm_vblank_count_and_time(dev, pipe, &now);
> } else {
> seq = 0;
> @@ -1137,7 +1137,7 @@ static int drm_vblank_get(struct drm_device *dev, unsigned int pipe)
> unsigned long irqflags;
> int ret = 0;
>
> - if (!dev->num_crtcs)
> + if (!drm_dev_has_vblank(dev))
> return -EINVAL;
>
> if (WARN_ON(pipe >= dev->num_crtcs))
> @@ -1506,7 +1506,7 @@ static void drm_legacy_vblank_pre_modeset(struct drm_device *dev,
> struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
>
> /* vblank is not initialized (IRQ not installed ?), or has been freed */
> - if (!dev->num_crtcs)
> + if (!drm_dev_has_vblank(dev))
> return;
>
> if (WARN_ON(pipe >= dev->num_crtcs))
> @@ -1533,7 +1533,7 @@ static void drm_legacy_vblank_post_modeset(struct drm_device *dev,
> unsigned long irqflags;
>
> /* vblank is not initialized (IRQ not installed ?), or has been freed */
> - if (!dev->num_crtcs)
> + if (!drm_dev_has_vblank(dev))
> return;
>
> if (WARN_ON(pipe >= dev->num_crtcs))
> @@ -1558,7 +1558,7 @@ int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data,
> unsigned int pipe;
>
> /* If drm_vblank_init() hasn't been called yet, just no-op */
> - if (!dev->num_crtcs)
> + if (!drm_dev_has_vblank(dev))
> return 0;
>
> /* KMS drivers handle this internally */
> @@ -1896,7 +1896,7 @@ bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe)
> unsigned long irqflags;
> bool disable_irq, fence_cookie;
>
> - if (WARN_ON_ONCE(!dev->num_crtcs))
> + if (WARN_ON_ONCE(!drm_dev_has_vblank(dev)))
> return false;
>
> if (WARN_ON(pipe >= dev->num_crtcs))
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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