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authorDaniel Vetter <daniel.vetter@ffwll.ch>2014-01-30 12:56:51 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-01-30 12:56:51 +0100
commite515b47e5646154448e46231d811919d93923da5 (patch)
tree1b10297d37170a1e00b4f2211f4296c2b0020f8d /include/drm
parentc2c1d4912cd7028384d7f25d2faefefb8958f64d (diff)
parentef64cf9d06049e4e9df661f3be60b217e476bee1 (diff)
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Backmerge drm-next - I need to backmerge drm-intel-fixes patches touching the error capture code to be able to merge Ben's cleanup patches. Conflicts: drivers/gpu/drm/i915/i915_gpu_error.c Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_crtc.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index e963470efd39..71727b6210ae 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -931,6 +931,19 @@ extern int drm_crtc_init(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs);
extern void drm_crtc_cleanup(struct drm_crtc *crtc);
+extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
+
+/**
+ * drm_crtc_mask - find the mask of a registered CRTC
+ * @crtc: CRTC to find mask for
+ *
+ * Given a registered CRTC, return the mask bit of that CRTC for an
+ * encoder's possible_crtcs field.
+ */
+static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
+{
+ return 1 << drm_crtc_index(crtc);
+}
extern void drm_connector_ida_init(void);
extern void drm_connector_ida_destroy(void);
@@ -952,6 +965,19 @@ extern int drm_encoder_init(struct drm_device *dev,
const struct drm_encoder_funcs *funcs,
int encoder_type);
+/**
+ * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
+ * @encoder: encoder to test
+ * @crtc: crtc to test
+ *
+ * Return false if @encoder can't be driven by @crtc, true otherwise.
+ */
+static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
+ struct drm_crtc *crtc)
+{
+ return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
+}
+
extern int drm_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,