On Wed, May 23, 2018 at 12:30:59PM -0700, Jeykumar Sankaran wrote:
> Replace custom plane zpos property with drm core zpos
> property. CRTC relies on the normalized zpos values
> to configure blend stages of each plane.
>
> Signed-off-by: Jeykumar Sankaran <jsanka@xxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 36 +------------------------------
> drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 18 +++++++++++++---
> 2 files changed, 16 insertions(+), 38 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index d439a9e..a0b702f 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -2631,24 +2631,6 @@ struct plane_state {
> u32 pipe_id;
> };
>
> -static int pstate_cmp(const void *a, const void *b)
> -{
> - struct plane_state *pa = (struct plane_state *)a;
> - struct plane_state *pb = (struct plane_state *)b;
> - int rc = 0;
> - int pa_zpos, pb_zpos;
> -
> - pa_zpos = dpu_plane_get_property(pa->dpu_pstate, PLANE_PROP_ZPOS);
> - pb_zpos = dpu_plane_get_property(pb->dpu_pstate, PLANE_PROP_ZPOS);
> -
> - if (pa_zpos != pb_zpos)
> - rc = pa_zpos - pb_zpos;
> - else
> - rc = pa->drm_pstate->crtc_x - pb->drm_pstate->crtc_x;
> -
> - return rc;
> -}
> -
> static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
> struct drm_crtc_state *state)
> {
> @@ -2714,8 +2696,7 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
>
> pstates[cnt].dpu_pstate = to_dpu_plane_state(pstate);
> pstates[cnt].drm_pstate = pstate;
> - pstates[cnt].stage = dpu_plane_get_property(
> - pstates[cnt].dpu_pstate, PLANE_PROP_ZPOS);
> + pstates[cnt].stage = pstate->normalized_zpos;
> pstates[cnt].pipe_id = dpu_plane_pipe(plane);
>
> /* check dim layer stage with every plane */
> @@ -2771,21 +2752,6 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
> }
> }
>
> - /* assign mixer stages based on sorted zpos property */
> - sort(pstates, cnt, sizeof(pstates[0]), pstate_cmp, NULL);
> -
> - if (!dpu_is_custom_client()) {
> - int stage_old = pstates[0].stage;
> -
> - z_pos = 0;
> - for (i = 0; i < cnt; i++) {
> - if (stage_old != pstates[i].stage)
> - ++z_pos;
> - stage_old = pstates[i].stage;
> - pstates[i].stage = z_pos;
> - }
> - }
> -
> z_pos = -1;
> for (i = 0; i < cnt; i++) {
> /* reset counts at every new blend stage */
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> index b033653..28735c8 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> @@ -59,6 +59,7 @@
> #define DPU_NAME_SIZE 12
>
> #define DPU_PLANE_COLOR_FILL_FLAG BIT(31)
> +#define DPU_ZPOS_MAX 255
>
> /* multirect rect index */
> enum {
> @@ -1518,9 +1519,6 @@ static void _dpu_plane_install_properties(struct drm_plane *plane,
> /* reserve zpos == 0 for primary planes */
> zpos_def = drm_plane_index(plane) + 1;
> }
> -
> - msm_property_install_range(&pdpu->property_info, "zpos",
> - 0x0, 0, zpos_max, zpos_def, PLANE_PROP_ZPOS);
> }
>
> static int dpu_plane_atomic_set_property(struct drm_plane *plane,
> @@ -1958,6 +1956,7 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev,
> struct msm_drm_private *priv;
> struct dpu_kms *kms;
> enum drm_plane_type type;
> + int zpos_max = DPU_ZPOS_MAX;
> int ret = -EINVAL;
>
> if (!dev) {
> @@ -2049,6 +2048,19 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev,
> if (ret)
> goto clean_sspp;
>
> + pdpu->catalog = kms->catalog;
> +
> + if (kms->catalog->mixer_count &&
> + kms->catalog->mixer[0].sblk->maxblendstages) {
> + zpos_max = kms->catalog->mixer[0].sblk->maxblendstages - 1;
> + if (zpos_max > DPU_STAGE_MAX - DPU_STAGE_0 - 1)
> + zpos_max = DPU_STAGE_MAX - DPU_STAGE_0 - 1;
> + }
> +
> + ret = drm_plane_create_zpos_property(plane, 0, 0, zpos_max);
> + if (ret)
> + DPU_ERROR("failed to install zpos property, rc = %d\n", ret);
> +
drm_plane_create_zpos_property() can either return 0 or -ENOMEM so
printing the return value isn't interesting.
> /* success! finalize initialization */
> drm_plane_helper_add(plane, &dpu_plane_helper_funcs);
>
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
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--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
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