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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0171-drm-amd-display-Change-update-surface-condition-fix-.patch54
1 files changed, 54 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0171-drm-amd-display-Change-update-surface-condition-fix-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0171-drm-amd-display-Change-update-surface-condition-fix-.patch
new file mode 100644
index 00000000..a80851c4
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0171-drm-amd-display-Change-update-surface-condition-fix-.patch
@@ -0,0 +1,54 @@
+From b98b873ae798563d9f7049e8a7cab8f14a561561 Mon Sep 17 00:00:00 2001
+From: Yongqiang Sun <yongqiang.sun@amd.com>
+Date: Thu, 19 Jan 2017 10:53:58 -0500
+Subject: [PATCH 0171/4131] drm/amd/display: Change update surface condition,
+ fix surface transition corruption.
+
+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 | 11 +++--------
+ 1 file changed, 3 insertions(+), 8 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
+index 270f8c5..de6ef87 100644
+--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
+@@ -1497,7 +1497,6 @@ void dc_update_surfaces_for_stream(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 apply_ctx = false;
+
+ for (j = 0; j < context->res_ctx.pool->pipe_count; j++) {
+ struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[j];
+@@ -1505,13 +1504,9 @@ void dc_update_surfaces_for_stream(struct dc *dc, struct dc_surface_update *upda
+ if (pipe_ctx->surface != surface)
+ continue;
+
+- if (updates[i].flip_addr) {
++ if (updates[i].flip_addr && can_skip_context_building) {
+ core_dc->hwss.update_plane_addr(core_dc, pipe_ctx);
+- }
+-
+- if (updates[i].plane_info || updates[i].scaling_info
+- || is_new_pipe_surface[j]) {
+- apply_ctx = true;
++ } else {
+
+ if (!pipe_ctx->tg->funcs->is_blanked(pipe_ctx->tg)) {
+ core_dc->hwss.pipe_control_lock(
+@@ -1546,7 +1541,7 @@ void dc_update_surfaces_for_stream(struct dc *dc, struct dc_surface_update *upda
+ }
+
+ }
+- if (apply_ctx) {
++ if (!can_skip_context_building) {
+ core_dc->hwss.apply_ctx_for_surface(core_dc, surface, context);
+ context_timing_trace(dc, &context->res_ctx);
+ }
+--
+2.7.4
+