From: Rob Clark rob@ti.com
Add a workqueue for omapdrm driver, which is needed for at least a couple things currently: (1) moving omap_gem_roll() to a non-atomic context, (2) synchronizing page flips w/ DSS scanout related irq's (in particular not unmapping previous buffer until DSS finishes scanout).
Signed-off-by: Rob Clark rob@ti.com --- drivers/staging/omapdrm/omap_drv.c | 8 ++++++++ drivers/staging/omapdrm/omap_drv.h | 2 ++ 2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c index 3bbea9a..7417e1f 100644 --- a/drivers/staging/omapdrm/omap_drv.c +++ b/drivers/staging/omapdrm/omap_drv.c @@ -570,6 +570,9 @@ static int dev_load(struct drm_device *dev, unsigned long flags)
dev->dev_private = priv;
+ priv->wq = alloc_workqueue("omapdrm", + WQ_UNBOUND | WQ_NON_REENTRANT, 1); + omap_gem_init(dev);
ret = omap_modeset_init(dev); @@ -598,6 +601,8 @@ static int dev_load(struct drm_device *dev, unsigned long flags)
static int dev_unload(struct drm_device *dev) { + struct omap_drm_private *priv = dev->dev_private; + DBG("unload: dev=%p", dev);
drm_vblank_cleanup(dev); @@ -607,6 +612,9 @@ static int dev_unload(struct drm_device *dev) omap_modeset_free(dev); omap_gem_deinit(dev);
+ flush_workqueue(priv->wq); + destroy_workqueue(priv->wq); + kfree(dev->dev_private); dev->dev_private = NULL;
diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h index d924c95..a84547c 100644 --- a/drivers/staging/omapdrm/omap_drv.h +++ b/drivers/staging/omapdrm/omap_drv.h @@ -51,6 +51,8 @@ struct omap_drm_private {
struct drm_fb_helper *fbdev;
+ struct workqueue_struct *wq; + bool has_dmm; };