diff options
| author | Haneen Mohammed <hamohammed.sa@gmail.com> | 2018-08-02 04:08:22 +0300 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2018-08-03 14:52:50 -0400 |
| commit | 3e77c4d02237b054806c151b21c5307c6a064ce4 (patch) | |
| tree | 92736fc6e3b376a83d00e897ede58ea5d0b539cf /drivers/gpu/drm/vkms/vkms_plane.c | |
| parent | 570913e0b1bebec0676ac7091544a00b278e8765 (diff) | |
drm/vkms: Subclass plane state
Subclass plane state struct to enable storing driver's private
state. This patch only adds the base drm_plane_state struct and
the atomic functions that handle it.
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/c35c512c8987a7255aac94a9eb985d2dd3e6c90d.1533171495.git.hamohammed.sa@gmail.com
Diffstat (limited to 'drivers/gpu/drm/vkms/vkms_plane.c')
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_plane.c | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 8191940844e5..70fca22bc51b 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -12,13 +12,54 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_gem_framebuffer_helper.h> +static struct drm_plane_state * +vkms_plane_duplicate_state(struct drm_plane *plane) +{ + struct vkms_plane_state *vkms_state; + + vkms_state = kzalloc(sizeof(*vkms_state), GFP_KERNEL); + if (!vkms_state) + return NULL; + + __drm_atomic_helper_plane_duplicate_state(plane, + &vkms_state->base); + + return &vkms_state->base; +} + +static void vkms_plane_destroy_state(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct vkms_plane_state *vkms_state = to_vkms_plane_state(old_state); + + __drm_atomic_helper_plane_destroy_state(old_state); + kfree(vkms_state); +} + +static void vkms_plane_reset(struct drm_plane *plane) +{ + struct vkms_plane_state *vkms_state; + + if (plane->state) + vkms_plane_destroy_state(plane, plane->state); + + vkms_state = kzalloc(sizeof(*vkms_state), GFP_KERNEL); + if (!vkms_state) { + DRM_ERROR("Cannot allocate vkms_plane_state\n"); + return; + } + + plane->state = &vkms_state->base; + plane->state->plane = plane; +} + static const struct drm_plane_funcs vkms_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = drm_plane_cleanup, - .reset = drm_atomic_helper_plane_reset, - .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, + .reset = vkms_plane_reset, + .atomic_duplicate_state = vkms_plane_duplicate_state, + .atomic_destroy_state = vkms_plane_destroy_state, }; static void vkms_primary_plane_update(struct drm_plane *plane, |