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-rw-r--r--common/recipes-kernel/linux/linux-yocto-4.14.71/0098-drm-amd-display-Fixed-split-update-bug.patch57
1 files changed, 57 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0098-drm-amd-display-Fixed-split-update-bug.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0098-drm-amd-display-Fixed-split-update-bug.patch
new file mode 100644
index 00000000..df2a1622
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0098-drm-amd-display-Fixed-split-update-bug.patch
@@ -0,0 +1,57 @@
+From 736d31f138bbadbc13a6397af5d220bcf978869d Mon Sep 17 00:00:00 2001
+From: Yongqiang Sun <yongqiang.sun@amd.com>
+Date: Thu, 22 Dec 2016 10:48:19 -0500
+Subject: [PATCH 0098/4131] drm/amd/display: Fixed split update bug.
+
+Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
+Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
+Acked-by: Harry Wentland <Harry.Wentland@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc.c | 14 ++++++++++++--
+ 1 file changed, 12 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
+index e6010ab..5e60640 100644
+--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
+@@ -1333,6 +1333,7 @@ void dc_update_surfaces_for_target(struct dc *dc, struct dc_surface_update *upda
+ bool is_new_pipe_surface[MAX_PIPES];
+ const struct dc_surface *new_surfaces[MAX_SURFACES] = { 0 };
+ bool need_apply_clk_constraints = false;
++ bool can_skip_context_building = true;
+
+ update_surface_trace(dc, updates, surface_count);
+
+@@ -1355,17 +1356,26 @@ void dc_update_surfaces_for_target(struct dc *dc, struct dc_surface_update *upda
+
+ for (i = 0 ; i < surface_count; i++) {
+ struct core_surface *surface = DC_SURFACE_TO_CORE(updates[i].surface);
++ bool existing_surface = false;
+
+ new_surfaces[i] = updates[i].surface;
++
+ for (j = 0; j < context->res_ctx.pool->pipe_count; j++) {
+ struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
+
+- if (surface == pipe_ctx->surface)
++ if (surface == pipe_ctx->surface) {
++ existing_surface = true;
+ is_new_pipe_surface[j] = false;
++ }
+ }
++
++ if (updates[i].plane_info ||
++ updates[i].scaling_info ||
++ !existing_surface)
++ can_skip_context_building = false;
+ }
+
+- if (dc_target) {
++ if (!can_skip_context_building && dc_target) {
+ struct core_target *target = DC_TARGET_TO_CORE(dc_target);
+
+ if (core_dc->current_context->target_count == 0)
+--
+2.7.4
+