drm: Check crtc viewport correctly with rotated primary plane on atomic drivers

On atomic drivers we can dig out the primary plane rotation from the
plane state instead of looking at the legacy crtc->invert_dimensions
flag. The flag is not set by anyone except omapdrm, and it would be
racy to set it the same way in the atomic helpers.

v2: Kill crtc->invert_dimensions totally since omap is state based
    already and no one else ever used it (Matt)

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1445009919-22746-1-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 4003bdb8126353de10c5470ea6fadd8256660762..8eec726c106ecf015f43924616c39ac6c3787039 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -676,7 +676,6 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
 
        crtc->dev = dev;
        crtc->funcs = funcs;
-       crtc->invert_dimensions = false;
 
        drm_modeset_lock_init(&crtc->mutex);
        ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
@@ -2563,7 +2562,9 @@ int drm_crtc_check_viewport(const struct drm_crtc *crtc,
 
        drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);
 
-       if (crtc->invert_dimensions)
+       if (crtc->state &&
+           crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) |
+                                             BIT(DRM_ROTATE_270)))
                swap(hdisplay, vdisplay);
 
        return check_src_coords(x << 16, y << 16,

diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
index 9a4ba4f035673e859c6687fcc76bc507b4ab8996..ad09590e8a4688d22756217542b6716157d5e37d 100644 (file)
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -412,9 +412,6 @@ static void omap_crtc_atomic_flush(struct drm_crtc *crtc,
                dispc_mgr_go(omap_crtc->channel);
                omap_irq_register(crtc->dev, &omap_crtc->vblank_irq);
        }
-
-       crtc->invert_dimensions = !!(crtc->primary->state->rotation &
-                                   (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270)));
 }
 
 static int omap_crtc_atomic_set_property(struct drm_crtc *crtc,

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 33ddedd3603871545cdcb009f9f48d08e88bb79a..3f0c6909dda17f9ec14959353a440da171a87ca6 100644 (file)
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -407,9 +407,6 @@ struct drm_crtc_funcs {
  * @enabled: is this CRTC enabled?
  * @mode: current mode timings
  * @hwmode: mode timings as programmed to hw regs
- * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
- *    invert the width/height of the crtc.  This is used if the driver
- *    is performing 90 or 270 degree rotated scanout
  * @x: x position on screen
  * @y: y position on screen
  * @funcs: CRTC control functions
@@ -458,8 +455,6 @@ struct drm_crtc {
         */
        struct drm_display_mode hwmode;
 
-       bool invert_dimensions;
-
        int x, y;
        const struct drm_crtc_funcs *funcs;