Am Montag, den 14.11.2016, 11:07 +0100 schrieb Marek Vasut:
> Remove the common code from the driver and use the
> drm_fb_cma_prepare_fb() helper instead.
> Moveover, call the helper from prepare_fb() plane hook .
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> ---
> V2: - Rename the function to drm_fb_cma_extract_and_attach_fence()
> - Add missing newline
> V3: - Call drm_fb_cma_prepare_fb directly
> V4: - Update to latest next/master (b60de3e)
> ---
> drivers/gpu/drm/imx/imx-drm-core.c | 32 +-------------------------------
> drivers/gpu/drm/imx/ipuv3-plane.c | 1 +
> 2 files changed, 2 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
> index a16e8b7..3340429 100644
> --- a/drivers/gpu/drm/imx/imx-drm-core.c
> +++ b/drivers/gpu/drm/imx/imx-drm-core.c
> @@ -18,7 +18,6 @@
> #include <linux/dma-buf.h>
> #include <linux/module.h>
> #include <linux/platform_device.h>
> -#include <linux/reservation.h>
> #include <drm/drmP.h>
> #include <drm/drm_atomic.h>
> #include <drm/drm_atomic_helper.h>
> @@ -151,40 +150,11 @@ static int imx_drm_atomic_check(struct drm_device *dev,
> return ret;
> }
>
> -static int imx_drm_atomic_commit(struct drm_device *dev,
> - struct drm_atomic_state *state,
> - bool nonblock)
> -{
> - struct drm_plane_state *plane_state;
> - struct drm_plane *plane;
> - struct dma_buf *dma_buf;
> - struct dma_fence *fence;
> - int i;
> -
> - /*
> - * If the plane fb has an dma-buf attached, fish out the exclusive
> - * fence for the atomic helper to wait on.
> - */
> - for_each_plane_in_state(state, plane, plane_state, i) {
> - if ((plane->state->fb != plane_state->fb) && plane_state->fb) {
> - dma_buf = drm_fb_cma_get_gem_obj(plane_state->fb,
> - 0)->base.dma_buf;
> - if (!dma_buf)
> - continue;
> - fence = reservation_object_get_excl_rcu(dma_buf->resv);
> -
> - drm_atomic_set_fence_for_plane(plane_state, fence);
> - }
> - }
> -
> - return drm_atomic_helper_commit(dev, state, nonblock);
> -}
> -
> static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = {
> .fb_create = drm_fb_cma_create,
> .output_poll_changed = imx_drm_output_poll_changed,
> .atomic_check = imx_drm_atomic_check,
> - .atomic_commit = imx_drm_atomic_commit,
> + .atomic_commit = drm_atomic_helper_commit,
> };
>
> static void imx_drm_atomic_commit_tail(struct drm_atomic_state *state)
> diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
> index 6a97e396..e74a0ad 100644
> --- a/drivers/gpu/drm/imx/ipuv3-plane.c
> +++ b/drivers/gpu/drm/imx/ipuv3-plane.c
> @@ -468,6 +468,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
> }
>
> static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
> + .prepare_fb = drm_fb_cma_prepare_fb,
> .atomic_check = ipu_plane_atomic_check,
> .atomic_disable = ipu_plane_atomic_disable,
> .atomic_update = ipu_plane_atomic_update,
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