diff options
| author | Rob Clark <robdclark@gmail.com> | 2013-11-30 17:24:22 -0500 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-01-09 14:44:05 -0500 |
| commit | 9e0efa63565511dc75846e6b036a4b80e92b9a98 (patch) | |
| tree | 4f9efd191aaf9cb622c9d451e96e4c3859e4850c /drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c | |
| parent | dd2da6e34672100b5fd811fbf2cf97e29c08080f (diff) | |
drm/msm: move irq utils to mdp_kms
We'll want basically the same thing for mdp5, so refactor it out so it
can be shared.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c | 142 |
1 files changed, 16 insertions, 126 deletions
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c index 5c6b7fca4edd..c740ccd1cc67 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c @@ -19,77 +19,49 @@ #include "msm_drv.h" #include "mdp4_kms.h" - -struct mdp4_irq_wait { - struct mdp4_irq irq; - int count; -}; - -static DECLARE_WAIT_QUEUE_HEAD(wait_event); - -static DEFINE_SPINLOCK(list_lock); - -static void update_irq(struct mdp4_kms *mdp4_kms) +void mdp4_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask) { - struct mdp4_irq *irq; - uint32_t irqmask = mdp4_kms->vblank_mask; - - BUG_ON(!spin_is_locked(&list_lock)); - - list_for_each_entry(irq, &mdp4_kms->irq_list, node) - irqmask |= irq->irqmask; - - mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, irqmask); + mdp4_write(to_mdp4_kms(mdp_kms), REG_MDP4_INTR_ENABLE, irqmask); } -static void update_irq_unlocked(struct mdp4_kms *mdp4_kms) -{ - unsigned long flags; - spin_lock_irqsave(&list_lock, flags); - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); -} - -static void mdp4_irq_error_handler(struct mdp4_irq *irq, uint32_t irqstatus) +static void mdp4_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus) { DRM_ERROR("errors: %08x\n", irqstatus); } void mdp4_irq_preinstall(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); mdp4_write(mdp4_kms, REG_MDP4_INTR_CLEAR, 0xffffffff); } int mdp4_irq_postinstall(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - struct mdp4_irq *error_handler = &mdp4_kms->error_handler; - - INIT_LIST_HEAD(&mdp4_kms->irq_list); + struct mdp_kms *mdp_kms = to_mdp_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(mdp_kms); + struct mdp_irq *error_handler = &mdp4_kms->error_handler; error_handler->irq = mdp4_irq_error_handler; error_handler->irqmask = MDP4_IRQ_PRIMARY_INTF_UDERRUN | MDP4_IRQ_EXTERNAL_INTF_UDERRUN; - mdp4_irq_register(mdp4_kms, error_handler); + mdp_irq_register(mdp_kms, error_handler); return 0; } void mdp4_irq_uninstall(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, 0x00000000); } irqreturn_t mdp4_irq(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp_kms *mdp_kms = to_mdp_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(mdp_kms); struct drm_device *dev = mdp4_kms->dev; struct msm_drm_private *priv = dev->dev_private; - struct mdp4_irq *handler, *n; - unsigned long flags; unsigned int id; uint32_t status; @@ -102,102 +74,20 @@ irqreturn_t mdp4_irq(struct msm_kms *kms) if (status & mdp4_crtc_vblank(priv->crtcs[id])) drm_handle_vblank(dev, id); - spin_lock_irqsave(&list_lock, flags); - mdp4_kms->in_irq = true; - list_for_each_entry_safe(handler, n, &mdp4_kms->irq_list, node) { - if (handler->irqmask & status) { - spin_unlock_irqrestore(&list_lock, flags); - handler->irq(handler, handler->irqmask & status); - spin_lock_irqsave(&list_lock, flags); - } - } - mdp4_kms->in_irq = false; - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); + mdp_dispatch_irqs(mdp_kms, status); return IRQ_HANDLED; } int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - unsigned long flags; - - spin_lock_irqsave(&list_lock, flags); - mdp4_kms->vblank_mask |= mdp4_crtc_vblank(crtc); - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); - + mdp_update_vblank_mask(to_mdp_kms(kms), + mdp4_crtc_vblank(crtc), true); return 0; } void mdp4_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - unsigned long flags; - - spin_lock_irqsave(&list_lock, flags); - mdp4_kms->vblank_mask &= ~mdp4_crtc_vblank(crtc); - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); -} - -static void wait_irq(struct mdp4_irq *irq, uint32_t irqstatus) -{ - struct mdp4_irq_wait *wait = - container_of(irq, struct mdp4_irq_wait, irq); - wait->count--; - wake_up_all(&wait_event); -} - -void mdp4_irq_wait(struct mdp4_kms *mdp4_kms, uint32_t irqmask) -{ - struct mdp4_irq_wait wait = { - .irq = { - .irq = wait_irq, - .irqmask = irqmask, - }, - .count = 1, - }; - mdp4_irq_register(mdp4_kms, &wait.irq); - wait_event(wait_event, (wait.count <= 0)); - mdp4_irq_unregister(mdp4_kms, &wait.irq); -} - -void mdp4_irq_register(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq) -{ - unsigned long flags; - bool needs_update = false; - - spin_lock_irqsave(&list_lock, flags); - - if (!irq->registered) { - irq->registered = true; - list_add(&irq->node, &mdp4_kms->irq_list); - needs_update = !mdp4_kms->in_irq; - } - - spin_unlock_irqrestore(&list_lock, flags); - - if (needs_update) - update_irq_unlocked(mdp4_kms); -} - -void mdp4_irq_unregister(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq) -{ - unsigned long flags; - bool needs_update = false; - - spin_lock_irqsave(&list_lock, flags); - - if (irq->registered) { - irq->registered = false; - list_del(&irq->node); - needs_update = !mdp4_kms->in_irq; - } - - spin_unlock_irqrestore(&list_lock, flags); - - if (needs_update) - update_irq_unlocked(mdp4_kms); + mdp_update_vblank_mask(to_mdp_kms(kms), + mdp4_crtc_vblank(crtc), false); } |