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| author | Stefan Schake <stschake@gmail.com> | 2018-04-20 05:25:44 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2018-04-23 11:32:55 -0700 |
| commit | 766cc6b1f7fc9e10f096a84d147e48dead18ba59 (patch) | |
| tree | 29491c5460283f6b4652f6e78deb51774b61d97b /drivers/gpu/drm/vc4/vc4_drv.h | |
| parent | 22445f0316a253406472ddcda98c3341b1eebaf4 (diff) | |
| download | linux-766cc6b1f7fc9e10f096a84d147e48dead18ba59.tar.bz2 | |
drm/vc4: Add CTM support
The hardware has a single block for applying a CTM prior to gamma lut.
It can be fed with pixels from one of our CRTC at a time and uses a
matrix with S0.9 scalars. Use private atomic state to reject attempts
from userland to apply CTM for more than one CRTC at a time and reject
matrices with scalars that we can't approximate without integer bits.
Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/218067/
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_drv.h')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_drv.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 4288615b66a2..22589d39083c 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -10,6 +10,7 @@ #include <drm/drmP.h> #include <drm/drm_encoder.h> #include <drm/drm_gem_cma_helper.h> +#include <drm/drm_atomic.h> #include "uapi/drm/vc4_drm.h" @@ -193,6 +194,9 @@ struct vc4_dev { } hangcheck; struct semaphore async_modeset; + + struct drm_modeset_lock ctm_state_lock; + struct drm_private_obj ctm_manager; }; static inline struct vc4_dev * |