drm/amd/display: improve cursor programming reliability

This change will cache cursor attributes and reprogram them
when enabling cursor after power gating if the attributes were not
yet reprogrammed

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

7 files changed, 32 insertions, 41 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 3dbd6c0885d8..23627b14c16c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -182,7 +182,6 @@ bool dc_stream_set_cursor_attributes(
         struct core_stream *stream;
         struct core_dc *core_dc;
         struct resource_context *res_ctx;
-        bool ret = false;
 
         if (NULL == dc_stream) {
                 dm_error("DC: dc_stream is NULL!\n");
@@ -200,28 +199,26 @@ 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->ipp != NULL)) {
-                        struct input_pixel_processor *ipp = pipe_ctx->ipp;
+                if (pipe_ctx->stream != stream || !pipe_ctx->ipp)
+                        continue;
+                if (pipe_ctx->top_pipe && pipe_ctx->surface != pipe_ctx->top_pipe->surface)
+                        continue;
 
-                        if (ipp->funcs->ipp_cursor_set_attributes(
-                                ipp, attributes))
-                                ret = true;
-                }
+                pipe_ctx->ipp->funcs->ipp_cursor_set_attributes(
+                                pipe_ctx->ipp, attributes);
         }
 
-        return ret;
+        return true;
 }
 
 bool dc_stream_set_cursor_position(
         const struct dc_stream *dc_stream,
-        struct dc_cursor_position *position)
+        const struct dc_cursor_position *position)
 {
         int i;
         struct core_stream *stream;
         struct core_dc *core_dc;
         struct resource_context *res_ctx;
-        bool ret = false;
 
         if (NULL == dc_stream) {
                 dm_error("DC: dc_stream is NULL!\n");
@@ -239,27 +236,27 @@ bool dc_stream_set_cursor_position(
 
         for (i = 0; i < MAX_PIPES; i++) {
                 struct pipe_ctx *pipe_ctx = &res_ctx->pipe_ctx[i];
+                struct input_pixel_processor *ipp = pipe_ctx->ipp;
+                struct dc_cursor_position pos_cpy = *position;
+                struct dc_cursor_mi_param param = {
+                        .pixel_clk_khz = dc_stream->timing.pix_clk_khz,
+                        .ref_clk_khz = res_ctx->pool->ref_clock_inKhz,
+                        .viewport_x_start = pipe_ctx->scl_data.viewport.x,
+                        .viewport_width = pipe_ctx->scl_data.viewport.width,
+                        .h_scale_ratio = pipe_ctx->scl_data.ratios.horz
+                };
+
+                if (pipe_ctx->stream != stream ||
+                                !pipe_ctx->ipp || !pipe_ctx->surface)
+                        continue;
 
-                if (pipe_ctx->stream == stream &&
-                                pipe_ctx->ipp && pipe_ctx->surface) {
-                        struct input_pixel_processor *ipp = pipe_ctx->ipp;
-                        struct dc_cursor_mi_param param = {
-                                .pixel_clk_khz = dc_stream->timing.pix_clk_khz,
-                                .ref_clk_khz = res_ctx->pool->ref_clock_inKhz,
-                                .viewport_x_start = pipe_ctx->scl_data.viewport.x,
-                                .viewport_width = pipe_ctx->scl_data.viewport.width,
-                                .h_scale_ratio = pipe_ctx->scl_data.ratios.horz,
-                        };
-
-                        if (pipe_ctx->top_pipe && pipe_ctx->surface != pipe_ctx->top_pipe->surface)
-                                position->enable = false;
-
-                        ipp->funcs->ipp_cursor_set_position(ipp, position, &param);
-                        ret = true;
-                }
+                if (pipe_ctx->top_pipe && pipe_ctx->surface != pipe_ctx->top_pipe->surface)
+                        pos_cpy.enable = false;
+
+                ipp->funcs->ipp_cursor_set_position(ipp, &pos_cpy, &param);
         }
 
-        return ret;
+        return true;
 }
 
 uint32_t dc_stream_get_vblank_counter(const struct dc_stream *dc_stream)
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index d35fa01024f8..5629e3ca6336 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -764,7 +764,7 @@ bool dc_stream_set_cursor_attributes(
 
 bool dc_stream_set_cursor_position(
         const struct dc_stream *stream,
-        struct dc_cursor_position *position);
+        const struct dc_cursor_position *position);
 
 /* Newer interfaces  */
 struct dc_cursor {
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp.h b/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp.h
index a374ef2c9d0b..434fe2f5a9d7 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp.h
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp.h
@@ -54,7 +54,7 @@ void dce110_ipp_cursor_set_position(
         const struct dc_cursor_position *position,
         const struct dc_cursor_mi_param *param);
 
-bool dce110_ipp_cursor_set_attributes(
+void dce110_ipp_cursor_set_attributes(
         struct input_pixel_processor *ipp,
         const struct dc_cursor_attributes *attributes);
 
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp_cursor.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp_cursor.c
index 5b230b17fc5c..f712916563b9 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp_cursor.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_ipp_cursor.c
@@ -95,7 +95,7 @@ void dce110_ipp_cursor_set_position(
         lock(ipp110, false);
 }
 
-bool dce110_ipp_cursor_set_attributes(
+void dce110_ipp_cursor_set_attributes(
         struct input_pixel_processor *ipp,
         const struct dc_cursor_attributes *attributes)
 {
@@ -122,8 +122,6 @@ bool dce110_ipp_cursor_set_attributes(
 
         /* Unlock Cursor registers. */
         lock(ipp110, false);
-
-        return true;
 }
 
 static void enable(
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp.h b/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp.h
index 4b326bcb4600..7f645fde7064 100644
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp.h
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp.h
@@ -42,7 +42,7 @@ void dce120_ipp_cursor_set_position(
         const struct dc_cursor_position *position,
         const struct dc_cursor_mi_param *param);
 
-bool dce120_ipp_cursor_set_attributes(
+void dce120_ipp_cursor_set_attributes(
         struct input_pixel_processor *ipp,
         const struct dc_cursor_attributes *attributes);
 
diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp_cursor.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp_cursor.c
index 15671fd2cb9c..dc81d320f6e5 100644
--- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp_cursor.c
+++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_ipp_cursor.c
@@ -160,7 +160,7 @@ void dce120_ipp_cursor_set_position(
         lock(ipp110, false);
 }
 
-bool dce120_ipp_cursor_set_attributes(
+void dce120_ipp_cursor_set_attributes(
         struct input_pixel_processor *ipp,
         const struct dc_cursor_attributes *attributes)
 {
@@ -189,7 +189,5 @@ bool dce120_ipp_cursor_set_attributes(
 
         /* Unlock Cursor registers. */
         lock(ipp110, false);
-
-        return true;
 }
 
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/ipp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/ipp.h
index 0457bc7a44d4..7928e230eefb 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/ipp.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/ipp.h
@@ -37,8 +37,6 @@ struct input_pixel_processor {
         struct  dc_context *ctx;
         unsigned int inst;
         const struct ipp_funcs *funcs;
-
-        unsigned int cusor_width;
 };
 
 enum ipp_prescale_mode {
@@ -88,7 +86,7 @@ struct ipp_funcs {
                 const struct dc_cursor_position *position,
                 const struct dc_cursor_mi_param *param);
 
-        bool (*ipp_cursor_set_attributes)(
+        void (*ipp_cursor_set_attributes)(
                 struct input_pixel_processor *ipp,
                 const struct dc_cursor_attributes *attributes);