From 305bd93080c6457ade9bd5ba9b64c4cc7b3076d3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Sat, 14 Aug 2021 18:43:45 -0700
Subject: drm/i915/display: Fix sel fetch plane offset calculation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: 7b24b79bf5f9492a63a09d5752af3c155f45f793
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
skl_calc_main_surface_offset() is used to calculate an aligned plane
surface address considering the inner framebuffer x and y offset.
It can not be used by selective fetch functions becase there is no
PLANE_SEL_FETCH_SURF.
So the PLANE_SEL_FETCH_OFFSET.y should only be PLANE_OFFSET.y +
damaged_area_within_plane.y1.
This fixes glitches seen in fbcon caused by typing something in
the terminal.
BSpec: 55229
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210815014346.373945-1-jose.souza@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_psr.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 1b0daf649e82..cade37f67f33 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1487,8 +1487,8 @@ 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, offset;
- int ret, x, y;
+ u32 val;
+ int x, y;
if (!crtc_state->enable_psr2_sel_fetch)
return;
@@ -1508,10 +1508,6 @@ void intel_psr2_program_plane_sel_fetch(struct intel_plane *plane,
/* 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);
--
2.38.1