Re: [PATCH 22/24] drm/amd/display: Adjust cursor position

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On 8/8/24 4:06 PM, Melissa Wen wrote:


On 07/08/2024 04:55, Tom Chung wrote:
From: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>

[why & how]
When the commit 9d84c7ef8a87 ("drm/amd/display: Correct cursor position
on horizontal mirror") was introduced, it used the wrong calculation for
the position copy for X. This commit uses the correct calculation for that
based on the original patch.

Fixes: 9d84c7ef8a87 ("drm/amd/display: Correct cursor position on horizontal mirror")
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Acked-by: Wayne Lin <wayne.lin@xxxxxxx>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
Signed-off-by: Tom Chung <chiahsuan.chung@xxxxxxx>
---
  drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
index 802902f54d09..01dffed4d30b 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c
@@ -3687,7 +3687,7 @@ void dcn10_set_cursor_position(struct pipe_ctx *pipe_ctx)
                          (int)hubp->curs_attr.width || pos_cpy.x
                          <= (int)hubp->curs_attr.width +
                          pipe_ctx->plane_state->src_rect.x) {
-                        pos_cpy.x = 2 * viewport_width - temp_x;
+                        pos_cpy.x = temp_x + viewport_width;
Hey,

AFAIU, this patch reverts the change in the previous patch.
Or this should be discarded, or both.

Hi Melissa,

This is a different part of the same function; the above change happens toward the end of dcn10_set_cursor_position, and your change occurs in the middle of the function. I think your change can probably be applied in this second part, but I prefer to do it in a different patch since this other change requires validation.

Thanks
Siqueira


Melissa
                      }
                  }
              } else {






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