diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0807-drm-amd-display-get-tail-pipe-before-aquire-free-pip.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0807-drm-amd-display-get-tail-pipe-before-aquire-free-pip.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0807-drm-amd-display-get-tail-pipe-before-aquire-free-pip.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0807-drm-amd-display-get-tail-pipe-before-aquire-free-pip.patch new file mode 100644 index 00000000..db3be493 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0807-drm-amd-display-get-tail-pipe-before-aquire-free-pip.patch @@ -0,0 +1,53 @@ +From b272d5c3380680db4a06de999a62a53f6ebd33ed Mon Sep 17 00:00:00 2001 +From: Eric Bernstein <eric.bernstein@amd.com> +Date: Mon, 29 Oct 2018 16:05:47 -0400 +Subject: [PATCH 0807/2940] drm/amd/display: get tail pipe before aquire free + pipe + +[Why] +For some complicated blending transition cases, the head +pipe of the second stream may end up being a higher pipe +index than the free pipe. In those cases dc_add_plane_to_context +will incorrectly set the tail_pipe to the free pipe, which +will cause the top_pipe and bottom_pipe to be the same + +[How] +Move the call to resource_get_tail_pipe_for_stream() to be +before call to acquire_free_pipe_for_stream(). + +Signed-off-by: Eric Bernstein <eric.bernstein@amd.com> +Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 7 +++---- + 1 file changed, 3 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +index a06ca07c7038..f014f2f96d84 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +@@ -1182,6 +1182,9 @@ bool dc_add_plane_to_context( + return false; + } + ++ tail_pipe = resource_get_tail_pipe_for_stream(&context->res_ctx, stream); ++ ASSERT(tail_pipe); ++ + free_pipe = acquire_free_pipe_for_stream(context, pool, stream); + + #ifdef CONFIG_X86 +@@ -1199,10 +1202,6 @@ bool dc_add_plane_to_context( + free_pipe->plane_state = plane_state; + + if (head_pipe != free_pipe) { +- +- tail_pipe = resource_get_tail_pipe_for_stream(&context->res_ctx, stream); +- ASSERT(tail_pipe); +- + free_pipe->stream_res.tg = tail_pipe->stream_res.tg; + free_pipe->stream_res.abm = tail_pipe->stream_res.abm; + free_pipe->stream_res.opp = tail_pipe->stream_res.opp; +-- +2.17.1 + |