Patch "drm/amd/display: check for ipp before calling cursor operations" has been added to the 4.15-stable tree

This is a note to let you know that I've just added the patch titled

drm/amd/display: check for ipp before calling cursor operations

to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-amd-display-check-for-ipp-before-calling-cursor-operations.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Shirish S <[email protected]>
Date: Wed, 21 Feb 2018 16:10:33 +0530
Subject: drm/amd/display: check for ipp before calling cursor operations

From: Shirish S <[email protected]>

commit d6b6669762898dfc99e9273b8d8603bc47014aa9 upstream.

Currently all cursor related functions are made to all pipes that are attached to a particular stream. This is not applicable to pipes that do not have cursor plane initialised like underlay.
Hence this patch allows cursor related operations on a pipe only if ipp in available on that particular pipe.

The check is added to set_cursor_position & set_cursor_attribute.

---
 drivers/gpu/drm/amd/display/dc/core/dc_stream.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

@@ -200,7 +200,8 @@ bool dc_stream_set_cursor_attributes(
 	for (i = 0; i < MAX_PIPES; i++) {
 		struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
 
-		if (pipe_ctx->stream != stream || (!pipe_ctx->plane_res.xfm && !pipe_ctx->plane_res.dpp))
+		if (pipe_ctx->stream != stream || (!pipe_ctx->plane_res.xfm &&
+		    !pipe_ctx->plane_res.dpp) || !pipe_ctx->plane_res.ipp)
 			continue;
 		if (pipe_ctx->top_pipe && pipe_ctx->plane_state != pipe_ctx->top_pipe->plane_state)
 			continue;

@@ -276,7 +277,8 @@ bool dc_stream_set_cursor_position(
 		if (pipe_ctx->stream != stream ||
 				(!pipe_ctx->plane_res.mi  && !pipe_ctx->plane_res.hubp) ||
 				!pipe_ctx->plane_state ||
-				(!pipe_ctx->plane_res.xfm && !pipe_ctx->plane_res.dpp))
+				(!pipe_ctx->plane_res.xfm && !pipe_ctx->plane_res.dpp) ||
+				!pipe_ctx->plane_res.ipp)
 			continue;
 
 		if (pipe_ctx->plane_state->address.type

Patches currently in stable-queue which might be from [email protected] are

queue-4.15/drm-amd-display-check-for-ipp-before-calling-cursor-operations.patch