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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2015-05-18 10:06:40 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-05-18 16:39:41 +0200
commit036ef5733ba433760a3512bb5f7a155946e2df05 (patch)
tree45fa24bd9722b147d1449e572e5f0e1e7433bd0b /include/drm
parent744b058827b3db9a4f6027522dd9c73a208c2d31 (diff)
downloadblackbird-obmc-linux-036ef5733ba433760a3512bb5f7a155946e2df05.tar.gz
blackbird-obmc-linux-036ef5733ba433760a3512bb5f7a155946e2df05.zip
drm/atomic: Allow drivers to subclass drm_atomic_state, v3
Drivers may need to store the state of shared resources, such as PLLs or FIFO space, into the atomic state. Allow this by making it possible to subclass drm_atomic_state. Changes since v1: - Change member names for functions to atomic_state_(alloc,clear) - Change __drm_atomic_state_new to drm_atomic_state_init - Allow free function to be overridden too, in case extra memory is allocated in alloc. Changes since v2: - Rename *_default_free to default_release, to make clear it doesn't free the state object itself. Cc: dri-devel@lists.freedesktop.org Acked-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_atomic.h5
-rw-r--r--include/drm/drm_crtc.h6
2 files changed, 11 insertions, 0 deletions
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index d78543067700..f0d3a7387d99 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -35,6 +35,11 @@ drm_atomic_state_alloc(struct drm_device *dev);
void drm_atomic_state_clear(struct drm_atomic_state *state);
void drm_atomic_state_free(struct drm_atomic_state *state);
+int __must_check
+drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state);
+void drm_atomic_state_default_clear(struct drm_atomic_state *state);
+void drm_atomic_state_default_release(struct drm_atomic_state *state);
+
struct drm_crtc_state * __must_check
drm_atomic_get_crtc_state(struct drm_atomic_state *state,
struct drm_crtc *crtc);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 5626191f3af0..37c44f27cb9f 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -979,6 +979,9 @@ struct drm_mode_set {
* @atomic_check: check whether a given atomic state update is possible
* @atomic_commit: commit an atomic state update previously verified with
* atomic_check()
+ * @atomic_state_alloc: allocate a new atomic state
+ * @atomic_state_clear: clear the atomic state
+ * @atomic_state_free: free the atomic state
*
* Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
* involve drivers.
@@ -994,6 +997,9 @@ struct drm_mode_config_funcs {
int (*atomic_commit)(struct drm_device *dev,
struct drm_atomic_state *a,
bool async);
+ struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev);
+ void (*atomic_state_clear)(struct drm_atomic_state *state);
+ void (*atomic_state_free)(struct drm_atomic_state *state);
};
/**
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