diff options
| author | Ben Skeggs | 2010-03-30 15:14:41 +1000 |
|---|---|---|
| committer | Ben Skeggs | 2010-04-09 10:15:40 +1000 |
| commit | a5acac66685397a73bed8638114262520565e41c (patch) | |
| tree | b5538c51a89db9afa8ea4dc563ad9f0968259889 | |
| parent | 6f335a7afa6bc57603f39430dc6f9e57de288a91 (diff) | |
drm/nv50: punt hotplug irq handling out to workqueue
On DP outputs we'll likely end up running vbios init tables here, which
may sleep.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_irq.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.h | 1 |
4 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index f7d4d2a10052..c4f5658b9e49 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -520,6 +520,7 @@ struct drm_nouveau_private { struct workqueue_struct *wq; struct work_struct irq_work; + struct work_struct hpd_work; struct list_head vbl_waiting; diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c index 2bd59a92fee5..13e73cee4c44 100644 --- a/drivers/gpu/drm/nouveau/nouveau_irq.c +++ b/drivers/gpu/drm/nouveau/nouveau_irq.c @@ -51,6 +51,7 @@ nouveau_irq_preinstall(struct drm_device *dev) if (dev_priv->card_type == NV_50) { INIT_WORK(&dev_priv->irq_work, nv50_display_irq_handler_bh); + INIT_WORK(&dev_priv->hpd_work, nv50_display_irq_hotplug_bh); INIT_LIST_HEAD(&dev_priv->vbl_waiting); } } diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index fd00f4000f14..649db4c1b690 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -887,10 +887,12 @@ nv50_display_error_handler(struct drm_device *dev) nv_wr32(dev, NV50_PDISPLAY_TRAPPED_ADDR, 0x90000000); } -static void -nv50_display_irq_hotplug(struct drm_device *dev) +void +nv50_display_irq_hotplug_bh(struct work_struct *work) { - struct drm_nouveau_private *dev_priv = dev->dev_private; + struct drm_nouveau_private *dev_priv = + container_of(work, struct drm_nouveau_private, hpd_work); + struct drm_device *dev = dev_priv->dev; struct drm_connector *connector; const uint32_t gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 }; uint32_t unplug_mask, plug_mask, change_mask; @@ -951,8 +953,10 @@ nv50_display_irq_handler(struct drm_device *dev) struct drm_nouveau_private *dev_priv = dev->dev_private; uint32_t delayed = 0; - while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_HOTPLUG) - nv50_display_irq_hotplug(dev); + if (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_HOTPLUG) { + if (!work_pending(&dev_priv->hpd_work)) + queue_work(dev_priv->wq, &dev_priv->hpd_work); + } while (nv_rd32(dev, NV50_PMC_INTR_0) & NV50_PMC_INTR_0_DISPLAY) { uint32_t intr0 = nv_rd32(dev, NV50_PDISPLAY_INTR_0); diff --git a/drivers/gpu/drm/nouveau/nv50_display.h b/drivers/gpu/drm/nouveau/nv50_display.h index 3ae8d0725f63..581d405ac014 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.h +++ b/drivers/gpu/drm/nouveau/nv50_display.h @@ -37,6 +37,7 @@ void nv50_display_irq_handler(struct drm_device *dev); void nv50_display_irq_handler_bh(struct work_struct *work); +void nv50_display_irq_hotplug_bh(struct work_struct *work); int nv50_display_init(struct drm_device *dev); int nv50_display_create(struct drm_device *dev); int nv50_display_destroy(struct drm_device *dev); |