1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/dc/dc-fu.h b/drivers/gpu/drm/imx/dc/dc-fu.h
new file mode 100644
index 000000000000..e016e1ea5b4e
--- /dev/null
+++ b/drivers/gpu/drm/imx/dc/dc-fu.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2024 NXP
+ */
+
+#ifndef __DC_FETCHUNIT_H__
+#define __DC_FETCHUNIT_H__
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/regmap.h>
+#include <linux/types.h>
+
+#include <drm/drm_fourcc.h>
+
+#include "dc-pe.h"
+
+#define FRAC_OFFSET			0x28
+
+#define STATICCONTROL			0x8
+#define BURSTBUFFERMANAGEMENT		0xc
+
+/* COLORCOMPONENTBITS */
+#define R_BITS(x)			FIELD_PREP_CONST(GENMASK(27, 24), (x))
+#define G_BITS(x)			FIELD_PREP_CONST(GENMASK(19, 16), (x))
+#define B_BITS(x)			FIELD_PREP_CONST(GENMASK(11, 8), (x))
+#define A_BITS(x)			FIELD_PREP_CONST(GENMASK(3, 0), (x))
+
+/* COLORCOMPONENTSHIFT */
+#define R_SHIFT(x)			FIELD_PREP_CONST(GENMASK(28, 24), (x))
+#define G_SHIFT(x)			FIELD_PREP_CONST(GENMASK(20, 16), (x))
+#define B_SHIFT(x)			FIELD_PREP_CONST(GENMASK(12, 8), (x))
+#define A_SHIFT(x)			FIELD_PREP_CONST(GENMASK(4, 0), (x))
+
+/* LAYERPROPERTY */
+#define YUVCONVERSIONMODE_MASK		GENMASK(18, 17)
+#define YUVCONVERSIONMODE(x)		FIELD_PREP(YUVCONVERSIONMODE_MASK, (x))
+#define SOURCEBUFFERENABLE		BIT(31)
+
+/* FRAMEDIMENSIONS */
+#define FRAMEWIDTH(x)			FIELD_PREP(GENMASK(13, 0), (x))
+#define FRAMEHEIGHT(x)			FIELD_PREP(GENMASK(29, 16), (x))
+
+/* CONTROL */
+#define INPUTSELECT_MASK		GENMASK(4, 3)
+#define INPUTSELECT(x)			FIELD_PREP(INPUTSELECT_MASK, (x))
+#define RASTERMODE_MASK			GENMASK(2, 0)
+#define RASTERMODE(x)			FIELD_PREP(RASTERMODE_MASK, (x))
+
+enum dc_yuvconversionmode {
+	YUVCONVERSIONMODE_OFF,
+};
+
+enum dc_inputselect {
+	INPUTSELECT_INACTIVE,
+};
+
+enum dc_rastermode {
+	RASTERMODE_NORMAL,
+};
+
+enum {
+	DC_FETCHUNIT_FL0,
+	DC_FETCHUNIT_FW2,
+};
+
+enum dc_fu_frac {
+	DC_FETCHUNIT_FRAC0,
+	DC_FETCHUNIT_FRAC1,
+	DC_FETCHUNIT_FRAC2,
+	DC_FETCHUNIT_FRAC3,
+	DC_FETCHUNIT_FRAC4,
+	DC_FETCHUNIT_FRAC5,
+	DC_FETCHUNIT_FRAC6,
+	DC_FETCHUNIT_FRAC7,
+	DC_FETCHUNIT_FRAC_NUM
+};
+
+struct dc_fu;
+struct dc_lb;
+
+struct dc_fu_ops {
+	void (*init)(struct dc_fu *fu);
+	void (*set_burstlength)(struct dc_fu *fu, dma_addr_t baddr);
+	void (*set_baseaddress)(struct dc_fu *fu, enum dc_fu_frac frac,
+				dma_addr_t baddr);
+	void (*set_src_stride)(struct dc_fu *fu, enum dc_fu_frac frac,
+			       unsigned int stride);
+	void (*set_src_buf_dimensions)(struct dc_fu *fu, enum dc_fu_frac frac,
+				       int w, int h);
+	void (*set_fmt)(struct dc_fu *fu, enum dc_fu_frac frac,
+			const struct drm_format_info *format);
+	void (*enable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
+	void (*disable_src_buf)(struct dc_fu *fu, enum dc_fu_frac frac);
+	void (*set_framedimensions)(struct dc_fu *fu, int w, int h);
+	void (*set_layerblend)(struct dc_fu *fu, struct dc_lb *lb);
+	enum dc_link_id (*get_link_id)(struct dc_fu *fu);
+	const char *(*get_name)(struct dc_fu *fu);
+};
+
+struct dc_fu {
+	struct regmap *reg_pec;
+	struct regmap *reg_cfg;
+	char name[21];
+	u32 reg_baseaddr[DC_FETCHUNIT_FRAC_NUM];
+	u32 reg_sourcebufferattributes[DC_FETCHUNIT_FRAC_NUM];
+	u32 reg_sourcebufferdimension[DC_FETCHUNIT_FRAC_NUM];
+	u32 reg_layeroffset[DC_FETCHUNIT_FRAC_NUM];
+	u32 reg_clipwindowoffset[DC_FETCHUNIT_FRAC_NUM];
+	u32 reg_clipwindowdimensions[DC_FETCHUNIT_FRAC_NUM];
+	u32 reg_constantcolor[DC_FETCHUNIT_FRAC_NUM];
+	u32 reg_layerproperty[DC_FETCHUNIT_FRAC_NUM];
+	unsigned int id;
+	enum dc_link_id link_id;
+	struct dc_fu_ops ops;
+	struct dc_lb *lb;
+};
+
+extern const struct dc_fu_ops dc_fu_common_ops;
+
+void dc_fu_get_pixel_format_bits(struct dc_fu *fu, u32 format, u32 *bits);
+void dc_fu_get_pixel_format_shifts(struct dc_fu *fu, u32 format, u32 *shifts);
+void dc_fu_shdldreq_sticky(struct dc_fu *fu, u8 layer_mask);
+void dc_fu_set_src_bpp(struct dc_fu *fu, enum dc_fu_frac frac, unsigned int bpp);
+void dc_fu_common_hw_init(struct dc_fu *fu);
+
+const struct dc_fu_ops *dc_fu_get_ops(struct dc_fu *fu);
+
+#endif /* __DC_FETCHUNIT_H__ */