diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0435-drm-amd-display-Fix-dcn10-cursor-set-position-hang.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0435-drm-amd-display-Fix-dcn10-cursor-set-position-hang.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0435-drm-amd-display-Fix-dcn10-cursor-set-position-hang.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0435-drm-amd-display-Fix-dcn10-cursor-set-position-hang.patch new file mode 100644 index 00000000..cb4d0f59 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0435-drm-amd-display-Fix-dcn10-cursor-set-position-hang.patch @@ -0,0 +1,42 @@ +From 824673a3b91f87f1f582353f7f45eab7578b13cd Mon Sep 17 00:00:00 2001 +From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com> +Date: Tue, 16 May 2017 09:55:20 -0400 +Subject: [PATCH 0435/4131] drm/amd/display: Fix dcn10 cursor set position hang + +Calling dcn10_cursor_set_position() before dcn10_cursor_set_attributes() +with invalid (0-value) attributes can cause the ASIC to hang. This fix +checks that address.quadpart is non-zero within set_position before calling +set_attributes. + +Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com> +Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dcn10/dcn10_ipp.c | 10 ++++++++++ + 1 file changed, 10 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_ipp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_ipp.c +index 3062b7d..082c98c 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_ipp.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_ipp.c +@@ -614,6 +614,16 @@ static void dcn10_cursor_set_position( + uint32_t cur_en = pos->enable ? 1 : 0; + uint32_t dst_x_offset = (src_x_offset >= 0) ? src_x_offset : 0; + ++ /* ++ * Guard aganst cursor_set_position() from being called with invalid ++ * attributes ++ * ++ * TODO: Look at combining cursor_set_position() and ++ * cursor_set_attributes() into cursor_update() ++ */ ++ if (ippn10->curs_attr.address.quad_part == 0) ++ return; ++ + dst_x_offset *= param->ref_clk_khz; + dst_x_offset /= param->pixel_clk_khz; + +-- +2.7.4 + |