diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-11-22 18:01:57 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2016-11-23 22:03:17 +0200 |
| commit | d97d7b48b644378349f2566dd83739e0be3ba410 (patch) | |
| tree | 779827a2b8a70b2fee60dd0903dd027eb82ef3a8 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | b14e5848c01de9a297d8fa2999ad324d45afb536 (diff) | |
| download | lwn-d97d7b48b644378349f2566dd83739e0be3ba410.tar.gz lwn-d97d7b48b644378349f2566dd83739e0be3ba410.zip | |
drm/i915: Add crtc->plane_ids_mask
Add a mask of which planes are available for each pipe. This doesn't
quite work for old platforms with dynamic plane<->pipe assignment, but
as we don't support that sort of stuff (yet) we can get away with it.
The main use I have for this is the for_each_plane_id_on_crtc() macro
for iterating over all possible planes on the crtc. I suppose we could
not add the mask, and instead iterate by comparing intel_plane->pipe
but then we'd need a local intel_plane variable which is just
unnecessary clutter in some cases. But I'm not hung up on this, so if
people prefer the other option I could be convinced to use it.
v2: Use BIT() in the iterator macro too (Paulo)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1479830524-7882-3-git-send-email-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index b12296ef0b4f..239d88cf637c 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -210,6 +210,10 @@ enum plane_id { I915_MAX_PLANES, }; +#define for_each_plane_id_on_crtc(__crtc, __p) \ + for ((__p) = PLANE_PRIMARY; (__p) < I915_MAX_PLANES; (__p)++) \ + for_each_if ((__crtc)->plane_ids_mask & BIT(__p)) + enum port { PORT_NONE = -1, PORT_A = 0, |