drm/amd/display: Use the same cursor info across features

Since different features would need to update cursor registers, However,
they would use different approaches.

To unify varied methods, this refactor is implemented the same update
cursor info method for current varied features.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Max Tseng <Max.Tseng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

3 files changed, 107 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/cursor_reg_cache.h b/drivers/gpu/drm/amd/display/dc/inc/hw/cursor_reg_cache.h
new file mode 100644
index 000000000000..0e7c5880e867
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/cursor_reg_cache.h
@@ -0,0 +1,98 @@
+/* Copyright © 2022 Advanced Micro Devices, Inc. All rights reserved. */
+
+#ifndef __DAL_CURSOR_CACHE_H__
+#define __DAL_CURSOR_CACHE_H__
+
+union reg_cursor_control_cfg {
+	struct {
+		uint32_t     cur_enable: 1;
+		uint32_t         reser0: 3;
+		uint32_t cur_2x_magnify: 1;
+		uint32_t         reser1: 3;
+		uint32_t           mode: 3;
+		uint32_t         reser2: 5;
+		uint32_t          pitch: 2;
+		uint32_t         reser3: 6;
+		uint32_t line_per_chunk: 5;
+		uint32_t         reser4: 3;
+	} bits;
+	uint32_t raw;
+};
+struct cursor_position_cache_hubp {
+	union reg_cursor_control_cfg cur_ctl;
+	union reg_position_cfg {
+		struct {
+			uint32_t x_pos: 16;
+			uint32_t y_pos: 16;
+		} bits;
+		uint32_t raw;
+	} position;
+	union reg_hot_spot_cfg {
+		struct {
+			uint32_t x_hot: 16;
+			uint32_t y_hot: 16;
+		} bits;
+		uint32_t raw;
+	} hot_spot;
+	union reg_dst_offset_cfg {
+		struct {
+			uint32_t dst_x_offset: 13;
+			uint32_t     reserved: 19;
+		} bits;
+		uint32_t raw;
+	} dst_offset;
+};
+
+struct cursor_attribute_cache_hubp {
+	uint32_t SURFACE_ADDR_HIGH;
+	uint32_t SURFACE_ADDR;
+	union    reg_cursor_control_cfg  cur_ctl;
+	union    reg_cursor_size_cfg {
+		struct {
+			uint32_t  width: 16;
+			uint32_t height: 16;
+		} bits;
+		uint32_t raw;
+	} size;
+	union    reg_cursor_settings_cfg {
+		struct {
+			uint32_t     dst_y_offset: 8;
+			uint32_t chunk_hdl_adjust: 2;
+			uint32_t         reserved: 22;
+		} bits;
+		uint32_t raw;
+	} settings;
+};
+
+struct cursor_rect {
+	uint32_t x;
+	uint32_t y;
+	uint32_t w;
+	uint32_t h;
+};
+
+union reg_cur0_control_cfg {
+	struct {
+		uint32_t     cur0_enable: 1;
+		uint32_t  expansion_mode: 1;
+		uint32_t          reser0: 1;
+		uint32_t     cur0_rom_en: 1;
+		uint32_t            mode: 3;
+		uint32_t        reserved: 25;
+	} bits;
+	uint32_t raw;
+};
+struct cursor_position_cache_dpp {
+	union reg_cur0_control_cfg cur0_ctl;
+};
+
+struct cursor_attribute_cache_dpp {
+	union reg_cur0_control_cfg cur0_ctl;
+};
+
+struct cursor_attributes_cfg {
+	struct  cursor_attribute_cache_hubp aHubp;
+	struct  cursor_attribute_cache_dpp  aDpp;
+};
+
+#endif
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
index 3ef7faa92052..dcb80c4747b0 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h
@@ -28,6 +28,7 @@
 #define __DAL_DPP_H__
 
 #include "transform.h"
+#include "cursor_reg_cache.h"
 
 union defer_reg_writes {
 	struct {
@@ -58,6 +59,9 @@ struct dpp {
 
 	struct pwl_params shaper_params;
 	bool cm_bypass_mode;
+
+	struct cursor_position_cache_dpp  pos;
+	struct cursor_attribute_cache_dpp att;
 };
 
 struct dpp_input_csc_matrix {
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h
index 44c4578193a3..d5ea7545583e 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h
@@ -27,6 +27,7 @@
 #define __DAL_HUBP_H__
 
 #include "mem_input.h"
+#include "cursor_reg_cache.h"
 
 #define OPP_ID_INVALID 0xf
 #define MAX_TTU 0xffffff
@@ -65,6 +66,10 @@ struct hubp {
 	struct dc_cursor_attributes curs_attr;
 	struct dc_cursor_position curs_pos;
 	bool power_gated;
+
+	struct cursor_position_cache_hubp  pos;
+	struct cursor_attribute_cache_hubp att;
+	struct cursor_rect cur_rect;
 };
 
 struct surface_flip_registers {