drm/msm/sde: add OT support for source pipe and writeback
OT limit controls the number of outstanding requests on bus client
interface. This patch adds OT limit control for source pipe and
writeback bus clients.
Change-Id: I66c0ede9da3b292538fec83ba62ccd453ee1ec37
Signed-off-by: Alan Kwong <akwong@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_plane.c b/drivers/gpu/drm/msm/sde/sde_plane.c
index a67f63d..421d031 100644
--- a/drivers/gpu/drm/msm/sde/sde_plane.c
+++ b/drivers/gpu/drm/msm/sde/sde_plane.c
@@ -407,6 +407,52 @@
&psde->pipe_qos_cfg);
}
+/**
+ * _sde_plane_set_ot_limit - set OT limit for the given plane
+ * @plane: Pointer to drm plane
+ * @crtc: Pointer to drm crtc
+ */
+static void _sde_plane_set_ot_limit(struct drm_plane *plane,
+ struct drm_crtc *crtc)
+{
+ struct sde_plane *psde;
+ struct sde_vbif_set_ot_params ot_params;
+ struct msm_drm_private *priv;
+ struct sde_kms *sde_kms;
+
+ if (!plane || !plane->dev || !crtc) {
+ SDE_ERROR("invalid arguments plane %d crtc %d\n",
+ plane != 0, crtc != 0);
+ return;
+ }
+
+ priv = plane->dev->dev_private;
+ if (!priv || !priv->kms) {
+ SDE_ERROR("invalid KMS reference\n");
+ return;
+ }
+
+ sde_kms = to_sde_kms(priv->kms);
+ psde = to_sde_plane(plane);
+ if (!psde->pipe_hw) {
+ SDE_ERROR("invalid pipe reference\n");
+ return;
+ }
+
+ memset(&ot_params, 0, sizeof(ot_params));
+ ot_params.xin_id = psde->pipe_hw->cap->xin_id;
+ ot_params.num = psde->pipe_hw->idx - SSPP_NONE;
+ ot_params.width = psde->pipe_cfg.src_rect.w;
+ ot_params.height = psde->pipe_cfg.src_rect.h;
+ ot_params.is_wfd = !psde->is_rt_pipe;
+ ot_params.frame_rate = crtc->mode.vrefresh;
+ ot_params.vbif_idx = VBIF_RT;
+ ot_params.clk_ctrl = psde->pipe_hw->cap->clk_ctrl;
+ ot_params.rd = true;
+
+ sde_vbif_set_ot_limit(sde_kms, &ot_params);
+}
+
/* helper to update a state's input fence pointer from the property */
static void _sde_plane_set_input_fence(struct drm_plane *plane,
struct sde_plane_state *pstate, uint64_t fd)
@@ -1115,8 +1161,10 @@
_sde_plane_set_qos_lut(plane, fb);
_sde_plane_set_danger_lut(plane, fb);
- if (plane->type != DRM_PLANE_TYPE_CURSOR)
+ if (plane->type != DRM_PLANE_TYPE_CURSOR) {
_sde_plane_set_qos_ctrl(plane, true, SDE_PLANE_QOS_PANIC_CTRL);
+ _sde_plane_set_ot_limit(plane, crtc);
+ }
return 0;
}