Merge tag 'omapdrm-4.2-atomic' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next

omapdrm atomic modesetting support

Atomic modesetting support for omapdrm.

" we've had issues with omapdrm for years,
which we've not been able to fix properly (like warnings/crashes when unloading
modules, page-flips tearing, race issues with fbs). All those problems seem to
be gone after this rewrite of omapdrm for atomic modesetting, and the resulting
code is much cleaner and more maintainable."

* tag 'omapdrm-4.2-atomic' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (43 commits)
  drm: omapdrm: new vblank and event handling
  drm: omapdrm: merge omap_crtc_flush and omap_crtc_atomic_flush
  drm: omapdrm: add lock for fb pinning
  drm: omapdrm: if omap_plane_atomic_update fails, disable plane
  drm: omapdrm: inline omap_plane_setup into update/disable
  drm: omapdrm: omap_plane_setup() cannot fail, use WARN
  drm: omapdrm: Don't setup planes manually from CRTC .enable()/.disable()
  drm: omapdrm: Don't flush CRTC when enabling or disabling it
  drm: omapdrm: Move encoder setup to encoder operations
  drm: omapdrm: Simplify DSS power management
  drm: omapdrm: Remove nested PM get/sync when configuring encoders
  drm: omapdrm: Support unlinking page flip events prematurely
  drm: omapdrm: omap_crtc_flush() isn't called with modeset locked
  drm: omapdrm: Don't get/put dispc in omap_crtc_flush()
  drm: omapdrm: Make the omap_crtc_flush function static
  drm: omapdrm: Remove omap_plane enabled field
  drm: omapdrm: Remove omap_crtc enabled field
  drm: omapdrm: Move crtc info out of the crtc structure
  drm: omapdrm: Move plane info and win out of the plane structure
  drm: omapdrm: Switch crtc and plane set_property to atomic helpers
  ...

1 files changed, 16 insertions, 43 deletions

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index b31c79f15aed..ae2df41f216f 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -20,15 +20,16 @@
 #ifndef __OMAP_DRV_H__
 #define __OMAP_DRV_H__
 
-#include <video/omapdss.h>
 #include <linux/module.h>
+#include <linux/platform_data/omap_drm.h>
 #include <linux/types.h>
+#include <linux/wait.h>
+#include <video/omapdss.h>
+
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
-#include <drm/omap_drm.h>
 #include <drm/drm_gem.h>
-#include <linux/platform_data/omap_drm.h>
-
+#include <drm/omap_drm.h>
 
 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */
@@ -50,21 +51,6 @@ struct omap_drm_window {
 	uint32_t src_w, src_h;
 };
 
-/* Once GO bit is set, we can't make further updates to shadowed registers
- * until the GO bit is cleared.  So various parts in the kms code that need
- * to update shadowed registers queue up a pair of callbacks, pre_apply
- * which is called before setting GO bit, and post_apply that is called
- * after GO bit is cleared.  The crtc manages the queuing, and everyone
- * else goes thru omap_crtc_apply() using these callbacks so that the
- * code which has to deal w/ GO bit state is centralized.
- */
-struct omap_drm_apply {
-	struct list_head pending_node, queued_node;
-	bool queued;
-	void (*pre_apply)(struct omap_drm_apply *apply);
-	void (*post_apply)(struct omap_drm_apply *apply);
-};
-
 /* For transiently registering for different DSS irqs that various parts
  * of the KMS code need during setup/configuration.  We these are not
  * necessarily the same as what drm_vblank_get/put() are requesting, and
@@ -114,13 +100,20 @@ struct omap_drm_private {
 	bool has_dmm;
 
 	/* properties: */
-	struct drm_property *rotation_prop;
 	struct drm_property *zorder_prop;
 
 	/* irq handling: */
 	struct list_head irq_list;    /* list of omap_drm_irq */
 	uint32_t vblank_mask;         /* irq bits set for userspace vblank */
 	struct omap_drm_irq error_handler;
+
+	/* atomic commit */
+	struct {
+		struct list_head events;
+		wait_queue_head_t wait;
+		u32 pending;
+		spinlock_t lock;	/* Protects commit.pending */
+	} commit;
 };
 
 
@@ -138,51 +131,31 @@ int omap_gem_resume(struct device *dev);
 
 int omap_irq_enable_vblank(struct drm_device *dev, int crtc_id);
 void omap_irq_disable_vblank(struct drm_device *dev, int crtc_id);
-irqreturn_t omap_irq_handler(int irq, void *arg);
-void omap_irq_preinstall(struct drm_device *dev);
-int omap_irq_postinstall(struct drm_device *dev);
-void omap_irq_uninstall(struct drm_device *dev);
 void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
 void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
 void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
 void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
-int omap_drm_irq_uninstall(struct drm_device *dev);
+void omap_drm_irq_uninstall(struct drm_device *dev);
 int omap_drm_irq_install(struct drm_device *dev);
 
 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
 void omap_fbdev_free(struct drm_device *dev);
 
-const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc);
+struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc);
 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
-int omap_crtc_apply(struct drm_crtc *crtc,
-		struct omap_drm_apply *apply);
 void omap_crtc_pre_init(void);
 void omap_crtc_pre_uninit(void);
 struct drm_crtc *omap_crtc_init(struct drm_device *dev,
 		struct drm_plane *plane, enum omap_channel channel, int id);
-void omap_crtc_flush(struct drm_crtc *crtc);
+int omap_crtc_wait_pending(struct drm_crtc *crtc);
 
 struct drm_plane *omap_plane_init(struct drm_device *dev,
 		int id, enum drm_plane_type type);
-int omap_plane_set_enable(struct drm_plane *plane, bool enable);
-int omap_plane_mode_set(struct drm_plane *plane,
-			struct drm_crtc *crtc, struct drm_framebuffer *fb,
-			int crtc_x, int crtc_y,
-			unsigned int crtc_w, unsigned int crtc_h,
-			unsigned int src_x, unsigned int src_y,
-			unsigned int src_w, unsigned int src_h,
-			void (*fxn)(void *), void *arg);
 void omap_plane_install_properties(struct drm_plane *plane,
 		struct drm_mode_object *obj);
-int omap_plane_set_property(struct drm_plane *plane,
-		struct drm_property *property, uint64_t val);
 
 struct drm_encoder *omap_encoder_init(struct drm_device *dev,
 		struct omap_dss_device *dssdev);
-int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled);
-int omap_encoder_update(struct drm_encoder *encoder,
-		struct omap_overlay_manager *mgr,
-		struct omap_video_timings *timings);
 
 struct drm_connector *omap_connector_init(struct drm_device *dev,
 		int connector_type, struct omap_dss_device *dssdev,