[Intel-gfx] [PATCH 5/6] RFC/WIP: drm/i915/display/psr: Consider tiling when doing the plane offset calculation

[José Roberto de Souza]

Do the calculation of x and y offsets using
skl_calc_main_surface_offset().

RFC/WIP: This causes the value of the calculated x to be different than
plane_state->color_plane[color_plane].x, not sure if that is expected.

Cc: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 91ba97bf609b..c30d7069cbaa 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1174,7 +1174,8 @@ void intel_psr2_program_plane_sel_fetch(struct intel_plane *plane,
 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
 	enum pipe pipe = plane->pipe;
 	const struct drm_rect *clip;
-	u32 val;
+	u32 val, offset;
+	int ret, x, y;
 
 	if (!crtc_state->enable_psr2_sel_fetch)
 		return;
@@ -1191,9 +1192,14 @@ void intel_psr2_program_plane_sel_fetch(struct intel_plane *plane,
 	val |= plane_state->uapi.dst.x1;
 	intel_de_write_fw(dev_priv, PLANE_SEL_FETCH_POS(pipe, plane->id), val);
 
-	/* TODO: consider tiling and auxiliary surfaces */
-	val = (clip->y1 + plane_state->color_plane[color_plane].y) << 16;
-	val |= plane_state->color_plane[color_plane].x;
+	/* TODO: consider auxiliary surfaces */
+	x = plane_state->uapi.src.x1 >> 16;
+	y = (plane_state->uapi.src.y1 >> 16) + clip->y1;
+	ret = skl_calc_main_surface_offset(plane_state, &x, &y, &offset);
+	if (ret)
+		drm_warn_once(&dev_priv->drm, "skl_calc_main_surface_offset() returned %i\n",
+			      ret);
+	val = y << 16 | x;
 	intel_de_write_fw(dev_priv, PLANE_SEL_FETCH_OFFSET(pipe, plane->id),
 			  val);
 
-- 
2.28.0