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authorDave Airlie <airlied@redhat.com>2016-05-05 09:56:30 +1000
committerDave Airlie <airlied@redhat.com>2016-05-05 09:56:30 +1000
commit21daaeee9f55ee407422ad225790dee57f0d5171 (patch)
treeab4f5a4db79fe51bf893fc901264e100a2d13bf4 /include/drm
parent4946dd2e14d252cd04e188ed6a4b794541d1c3ce (diff)
parent6d3e7fddb39a4f0a47c8042df11554bb61d7a4aa (diff)
downloadlinux-21daaeee9f55ee407422ad225790dee57f0d5171.tar.bz2
Merge tag 'topic/drm-misc-2016-05-04' of git://anongit.freedesktop.org/drm-intel into drm-next
Ofc I promise just a few leftovers for drm-misc and somehow it's the biggest pull. But really mostly trivial stuff: - MAINTAINERS updates from Emil - rename async to nonblock in atomic_commit to avoid the confusion between nonblocking ioctl and async flip (= not vblank synced), from Maarten. Needs to be regened with newer drivers, but probably only after -rc1 to catch them all. - actually lockless gem_object_free, plus acked driver conversion patches. All the trickier prep stuff already is in drm-next. - Noralf's nice work for generic defio support in our fbdev emulation. Keeps the udl hack, and qxl is tested by Gerd. * tag 'topic/drm-misc-2016-05-04' of git://anongit.freedesktop.org/drm-intel: (47 commits) drm: Fixup locking WARN_ON mistake around gem_object_free_unlocked drm/etnaviv: Use lockless gem BO free callback drm/imx: Use lockless gem BO free callback drm/radeon: Use lockless gem BO free callback drm/amdgpu: Use lockless gem BO free callback drm/gem: support BO freeing without dev->struct_mutex MAINTAINERS: Add myself for the new VC4 (RPi GPU) graphics driver. MAINTAINERS: Add a bunch of legacy (UMS) DRM drivers MAINTAINERS: Add a few DRM drivers by Dave Airlie MAINTAINERS: List the correct git repo for the Renesas DRM drivers MAINTAINERS: Update the files list for the Renesas DRM drivers MAINTAINERS: Update the files list for the Armada DRM driver MAINTAINERS: Update the files list for the Rockchip DRM driver MAINTAINERS: Update the files list for the Exynos DRM driver MAINTAINERS: Add maintainer entry for the VMWGFX DRM driver MAINTAINERS: Add maintainer entry for the MSM DRM driver MAINTAINERS: Add maintainer entry for the Nouveau DRM driver MAINTAINERS: Update the files list for the Etnaviv DRM driver MAINTAINERS: Remove unneded wildcard for the i915 DRM driver drm/atomic: Add WARN_ON when state->acquire_ctx is not set. ...
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drmP.h15
-rw-r--r--include/drm/drm_atomic.h2
-rw-r--r--include/drm/drm_atomic_helper.h2
-rw-r--r--include/drm/drm_crtc.h8
-rw-r--r--include/drm/drm_fb_cma_helper.h14
-rw-r--r--include/drm/drm_fb_helper.h15
-rw-r--r--include/drm/drm_gem.h48
7 files changed, 62 insertions, 42 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7901768bb47c..360b2a74e1ef 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -580,12 +580,21 @@ struct drm_driver {
void (*debugfs_cleanup)(struct drm_minor *minor);
/**
- * Driver-specific constructor for drm_gem_objects, to set up
- * obj->driver_private.
+ * @gem_free_object: deconstructor for drm_gem_objects
*
- * Returns 0 on success.
+ * This is deprecated and should not be used by new drivers. Use
+ * @gem_free_object_unlocked instead.
*/
void (*gem_free_object) (struct drm_gem_object *obj);
+
+ /**
+ * @gem_free_object_unlocked: deconstructor for drm_gem_objects
+ *
+ * This is for drivers which are not encumbered with dev->struct_mutex
+ * legacy locking schemes. Use this hook instead of @gem_free_object.
+ */
+ void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
+
int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index d3eaa5df187a..92c84e9ab09a 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -137,7 +137,7 @@ drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret);
int __must_check drm_atomic_check_only(struct drm_atomic_state *state);
int __must_check drm_atomic_commit(struct drm_atomic_state *state);
-int __must_check drm_atomic_async_commit(struct drm_atomic_state *state);
+int __must_check drm_atomic_nonblocking_commit(struct drm_atomic_state *state);
#define for_each_connector_in_state(state, connector, connector_state, __i) \
for ((__i) = 0; \
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index fe9d89c7d1ed..03642878bc51 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -40,7 +40,7 @@ int drm_atomic_helper_check(struct drm_device *dev,
struct drm_atomic_state *state);
int drm_atomic_helper_commit(struct drm_device *dev,
struct drm_atomic_state *state,
- bool async);
+ bool nonblock);
void drm_atomic_helper_wait_for_fences(struct drm_device *dev,
struct drm_atomic_state *state);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 297e527f1cac..2f2bf23d9675 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1886,7 +1886,7 @@ struct drm_mode_config_funcs {
* drm_atomic_helper_commit(), or one of the exported sub-functions of
* it.
*
- * Asynchronous commits (as indicated with the async parameter) must
+ * Nonblocking commits (as indicated with the nonblock parameter) must
* do any preparatory work which might result in an unsuccessful commit
* in the context of this callback. The only exceptions are hardware
* errors resulting in -EIO. But even in that case the driver must
@@ -1899,7 +1899,7 @@ struct drm_mode_config_funcs {
* The driver must wait for any pending rendering to the new
* framebuffers to complete before executing the flip. It should also
* wait for any pending rendering from other drivers if the underlying
- * buffer is a shared dma-buf. Asynchronous commits must not wait for
+ * buffer is a shared dma-buf. Nonblocking commits must not wait for
* rendering in the context of this callback.
*
* An application can request to be notified when the atomic commit has
@@ -1930,7 +1930,7 @@ struct drm_mode_config_funcs {
*
* 0 on success or one of the below negative error codes:
*
- * - -EBUSY, if an asynchronous updated is requested and there is
+ * - -EBUSY, if a nonblocking updated is requested and there is
* an earlier updated pending. Drivers are allowed to support a queue
* of outstanding updates, but currently no driver supports that.
* Note that drivers must wait for preceding updates to complete if a
@@ -1960,7 +1960,7 @@ struct drm_mode_config_funcs {
*/
int (*atomic_commit)(struct drm_device *dev,
struct drm_atomic_state *state,
- bool async);
+ bool nonblock);
/**
* @atomic_state_alloc:
diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h
index ae49c24fbf50..c6d9c9c55794 100644
--- a/include/drm/drm_fb_cma_helper.h
+++ b/include/drm/drm_fb_cma_helper.h
@@ -4,11 +4,18 @@
struct drm_fbdev_cma;
struct drm_gem_cma_object;
+struct drm_fb_helper_surface_size;
+struct drm_framebuffer_funcs;
+struct drm_fb_helper_funcs;
struct drm_framebuffer;
+struct drm_fb_helper;
struct drm_device;
struct drm_file;
struct drm_mode_fb_cmd2;
+struct drm_fbdev_cma *drm_fbdev_cma_init_with_funcs(struct drm_device *dev,
+ unsigned int preferred_bpp, unsigned int num_crtc,
+ unsigned int max_conn_count, const struct drm_fb_helper_funcs *funcs);
struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev,
unsigned int preferred_bpp, unsigned int num_crtc,
unsigned int max_conn_count);
@@ -16,6 +23,13 @@ void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma);
void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);
void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);
+int drm_fbdev_cma_create_with_funcs(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes,
+ struct drm_framebuffer_funcs *funcs);
+
+void drm_fb_cma_destroy(struct drm_framebuffer *fb);
+int drm_fb_cma_create_handle(struct drm_framebuffer *fb,
+ struct drm_file *file_priv, unsigned int *handle);
struct drm_framebuffer *drm_fb_cma_create(struct drm_device *dev,
struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd);
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 062723bdcabe..5b4aa35026a3 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -172,6 +172,10 @@ struct drm_fb_helper_connector {
* @funcs: driver callbacks for fb helper
* @fbdev: emulated fbdev device info struct
* @pseudo_palette: fake palette of 16 colors
+ * @dirty_clip: clip rectangle used with deferred_io to accumulate damage to
+ * the screen buffer
+ * @dirty_lock: spinlock protecting @dirty_clip
+ * @dirty_work: worker used to flush the framebuffer
*
* This is the main structure used by the fbdev helpers. Drivers supporting
* fbdev emulation should embedded this into their overall driver structure.
@@ -189,6 +193,9 @@ struct drm_fb_helper {
const struct drm_fb_helper_funcs *funcs;
struct fb_info *fbdev;
u32 pseudo_palette[17];
+ struct drm_clip_rect dirty_clip;
+ spinlock_t dirty_lock;
+ struct work_struct dirty_work;
/**
* @kernel_fb_list:
@@ -245,6 +252,9 @@ void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper);
+void drm_fb_helper_deferred_io(struct fb_info *info,
+ struct list_head *pagelist);
+
ssize_t drm_fb_helper_sys_read(struct fb_info *info, char __user *buf,
size_t count, loff_t *ppos);
ssize_t drm_fb_helper_sys_write(struct fb_info *info, const char __user *buf,
@@ -368,6 +378,11 @@ static inline void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper)
{
}
+static inline void drm_fb_helper_deferred_io(struct fb_info *info,
+ struct list_head *pagelist)
+{
+}
+
static inline ssize_t drm_fb_helper_sys_read(struct fb_info *info,
char __user *buf, size_t count,
loff_t *ppos)
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 0b3e11ab8757..408d6c47d98b 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -200,47 +200,29 @@ drm_gem_object_reference(struct drm_gem_object *obj)
}
/**
- * drm_gem_object_unreference - release a GEM BO reference
+ * __drm_gem_object_unreference - raw function to release a GEM BO reference
* @obj: GEM buffer object
*
- * This releases a reference to @obj. Callers must hold the dev->struct_mutex
- * lock when calling this function, even when the driver doesn't use
- * dev->struct_mutex for anything.
+ * This function is meant to be used by drivers which are not encumbered with
+ * dev->struct_mutex legacy locking and which are using the
+ * gem_free_object_unlocked callback. It avoids all the locking checks and
+ * locking overhead of drm_gem_object_unreference() and
+ * drm_gem_object_unreference_unlocked().
*
- * For drivers not encumbered with legacy locking use
- * drm_gem_object_unreference_unlocked() instead.
+ * Drivers should never call this directly in their code. Instead they should
+ * wrap it up into a driver_gem_object_unreference(struct driver_gem_object
+ * *obj) wrapper function, and use that. Shared code should never call this, to
+ * avoid breaking drivers by accident which still depend upon dev->struct_mutex
+ * locking.
*/
static inline void
-drm_gem_object_unreference(struct drm_gem_object *obj)
+__drm_gem_object_unreference(struct drm_gem_object *obj)
{
- if (obj != NULL) {
- WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex));
-
- kref_put(&obj->refcount, drm_gem_object_free);
- }
+ kref_put(&obj->refcount, drm_gem_object_free);
}
-/**
- * drm_gem_object_unreference_unlocked - release a GEM BO reference
- * @obj: GEM buffer object
- *
- * This releases a reference to @obj. Callers must not hold the
- * dev->struct_mutex lock when calling this function.
- */
-static inline void
-drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
-{
- struct drm_device *dev;
-
- if (!obj)
- return;
-
- dev = obj->dev;
- if (kref_put_mutex(&obj->refcount, drm_gem_object_free, &dev->struct_mutex))
- mutex_unlock(&dev->struct_mutex);
- else
- might_lock(&dev->struct_mutex);
-}
+void drm_gem_object_unreference_unlocked(struct drm_gem_object *obj);
+void drm_gem_object_unreference(struct drm_gem_object *obj);
int drm_gem_handle_create(struct drm_file *file_priv,
struct drm_gem_object *obj,