drm/amd/display: Fix disabled cursor on top screen edge

commit ae1cf20df7a9c60ff5ef41c3315c33c1a5fafd77 upstream.

[Why]
The cursor vanishes when touching the top of edge of the screen for
Raven on Linux.

This occurs because the cursor height is not taken into account when
deciding to disable the cursor.

[How]
Factor in the cursor height into the cursor calculations - and mimic
the existing x position calculations.

Fixes: 94a4ffd1d40b ("drm/amd/display: fix PIP bugs on Dal3")
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
index dcb3c55302365f84f06a07700f76509ee2016526..cd1ebe57ed594844a392ec2e1f2f0071c3dddbfe 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_dpp.c
@@ -463,7 +463,7 @@ void dpp1_set_cursor_position(
        if (src_y_offset >= (int)param->viewport.height)
                cur_en = 0;  /* not visible beyond bottom edge*/
 
-       if (src_y_offset < 0)
+       if (src_y_offset + (int)height <= 0)
                cur_en = 0;  /* not visible beyond top edge*/
 
        REG_UPDATE(CURSOR0_CONTROL,

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
index 74132a1f3046bfb8dc617ff27c136632ea329705..a34f0fdf7be2e7cb3f34a8851db86463379a0823 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
@@ -1134,7 +1134,7 @@ void hubp1_cursor_set_position(
        if (src_y_offset >= (int)param->viewport.height)
                cur_en = 0;  /* not visible beyond bottom edge*/
 
-       if (src_y_offset < 0) //+ (int)hubp->curs_attr.height
+       if (src_y_offset + (int)hubp->curs_attr.height <= 0)
                cur_en = 0;  /* not visible beyond top edge*/
 
        if (cur_en && REG_READ(CURSOR_SURFACE_ADDRESS) == 0)