Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 275 insertions, 0 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
new file mode 100644
index 000000000..81d501efd
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -0,0 +1,275 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* exynos_drm_drv.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ */
+
+#ifndef _EXYNOS_DRM_DRV_H_
+#define _EXYNOS_DRM_DRV_H_
+
+#include <linux/module.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_device.h>
+#include <drm/drm_plane.h>
+
+#define MAX_CRTC	3
+#define MAX_PLANE	5
+#define MAX_FB_BUFFER	4
+
+#define DEFAULT_WIN	0
+
+struct drm_crtc_state;
+struct drm_display_mode;
+
+#define to_exynos_crtc(x)	container_of(x, struct exynos_drm_crtc, base)
+#define to_exynos_plane(x)	container_of(x, struct exynos_drm_plane, base)
+
+/* this enumerates display type. */
+enum exynos_drm_output_type {
+	EXYNOS_DISPLAY_TYPE_NONE,
+	/* RGB or CPU Interface. */
+	EXYNOS_DISPLAY_TYPE_LCD,
+	/* HDMI Interface. */
+	EXYNOS_DISPLAY_TYPE_HDMI,
+	/* Virtual Display Interface. */
+	EXYNOS_DISPLAY_TYPE_VIDI,
+};
+
+struct exynos_drm_rect {
+	unsigned int x, y;
+	unsigned int w, h;
+};
+
+/*
+ * Exynos drm plane state structure.
+ *
+ * @base: plane_state object (contains drm_framebuffer pointer)
+ * @src: rectangle of the source image data to be displayed (clipped to
+ *       visible part).
+ * @crtc: rectangle of the target image position on hardware screen
+ *       (clipped to visible part).
+ * @h_ratio: horizontal scaling ratio, 16.16 fixed point
+ * @v_ratio: vertical scaling ratio, 16.16 fixed point
+ *
+ * this structure consists plane state data that will be applied to hardware
+ * specific overlay info.
+ */
+
+struct exynos_drm_plane_state {
+	struct drm_plane_state base;
+	struct exynos_drm_rect crtc;
+	struct exynos_drm_rect src;
+	unsigned int h_ratio;
+	unsigned int v_ratio;
+};
+
+static inline struct exynos_drm_plane_state *
+to_exynos_plane_state(struct drm_plane_state *state)
+{
+	return container_of(state, struct exynos_drm_plane_state, base);
+}
+
+/*
+ * Exynos drm common overlay structure.
+ *
+ * @base: plane object
+ * @index: hardware index of the overlay layer
+ *
+ * this structure is common to exynos SoC and its contents would be copied
+ * to hardware specific overlay info.
+ */
+
+struct exynos_drm_plane {
+	struct drm_plane base;
+	const struct exynos_drm_plane_config *config;
+	unsigned int index;
+};
+
+#define EXYNOS_DRM_PLANE_CAP_DOUBLE	(1 << 0)
+#define EXYNOS_DRM_PLANE_CAP_SCALE	(1 << 1)
+#define EXYNOS_DRM_PLANE_CAP_ZPOS	(1 << 2)
+#define EXYNOS_DRM_PLANE_CAP_TILE	(1 << 3)
+#define EXYNOS_DRM_PLANE_CAP_PIX_BLEND	(1 << 4)
+#define EXYNOS_DRM_PLANE_CAP_WIN_BLEND	(1 << 5)
+
+/*
+ * Exynos DRM plane configuration structure.
+ *
+ * @zpos: initial z-position of the plane.
+ * @type: type of the plane (primary, cursor or overlay).
+ * @pixel_formats: supported pixel formats.
+ * @num_pixel_formats: number of elements in 'pixel_formats'.
+ * @capabilities: supported features (see EXYNOS_DRM_PLANE_CAP_*)
+ */
+
+struct exynos_drm_plane_config {
+	unsigned int zpos;
+	enum drm_plane_type type;
+	const uint32_t *pixel_formats;
+	unsigned int num_pixel_formats;
+	unsigned int capabilities;
+};
+
+/*
+ * Exynos drm crtc ops
+ *
+ * @atomic_enable: enable the device
+ * @atomic_disable: disable the device
+ * @enable_vblank: specific driver callback for enabling vblank interrupt.
+ * @disable_vblank: specific driver callback for disabling vblank interrupt.
+ * @mode_valid: specific driver callback for mode validation
+ * @atomic_check: validate state
+ * @atomic_begin: prepare device to receive an update
+ * @atomic_flush: mark the end of device update
+ * @update_plane: apply hardware specific overlay data to registers.
+ * @disable_plane: disable hardware specific overlay.
+ * @te_handler: trigger to transfer video image at the tearing effect
+ *	synchronization signal if there is a page flip request.
+ */
+struct exynos_drm_crtc;
+struct exynos_drm_crtc_ops {
+	void (*atomic_enable)(struct exynos_drm_crtc *crtc);
+	void (*atomic_disable)(struct exynos_drm_crtc *crtc);
+	int (*enable_vblank)(struct exynos_drm_crtc *crtc);
+	void (*disable_vblank)(struct exynos_drm_crtc *crtc);
+	enum drm_mode_status (*mode_valid)(struct exynos_drm_crtc *crtc,
+		const struct drm_display_mode *mode);
+	bool (*mode_fixup)(struct exynos_drm_crtc *crtc,
+			   const struct drm_display_mode *mode,
+			   struct drm_display_mode *adjusted_mode);
+	int (*atomic_check)(struct exynos_drm_crtc *crtc,
+			    struct drm_crtc_state *state);
+	void (*atomic_begin)(struct exynos_drm_crtc *crtc);
+	void (*update_plane)(struct exynos_drm_crtc *crtc,
+			     struct exynos_drm_plane *plane);
+	void (*disable_plane)(struct exynos_drm_crtc *crtc,
+			      struct exynos_drm_plane *plane);
+	void (*atomic_flush)(struct exynos_drm_crtc *crtc);
+	void (*te_handler)(struct exynos_drm_crtc *crtc);
+};
+
+struct exynos_drm_clk {
+	void (*enable)(struct exynos_drm_clk *clk, bool enable);
+};
+
+/*
+ * Exynos specific crtc structure.
+ *
+ * @base: crtc object.
+ * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
+ * @ops: pointer to callbacks for exynos drm specific functionality
+ * @ctx: A pointer to the crtc's implementation specific context
+ * @pipe_clk: A pointer to the crtc's pipeline clock.
+ */
+struct exynos_drm_crtc {
+	struct drm_crtc			base;
+	enum exynos_drm_output_type	type;
+	const struct exynos_drm_crtc_ops	*ops;
+	void				*ctx;
+	struct exynos_drm_clk		*pipe_clk;
+	bool				i80_mode : 1;
+};
+
+static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
+					      bool enable)
+{
+	if (crtc->pipe_clk)
+		crtc->pipe_clk->enable(crtc->pipe_clk, enable);
+}
+
+struct drm_exynos_file_private {
+	/* for g2d api */
+	struct list_head	inuse_cmdlist;
+	struct list_head	event_list;
+	struct list_head	userptr_list;
+};
+
+/*
+ * Exynos drm private structure.
+ *
+ * @pending: the crtcs that have pending updates to finish
+ * @lock: protect access to @pending
+ * @wait: wait an atomic commit to finish
+ */
+struct exynos_drm_private {
+	struct device *g2d_dev;
+	struct device *dma_dev;
+	void *mapping;
+
+	/* for atomic commit */
+	u32			pending;
+	spinlock_t		lock;
+	wait_queue_head_t	wait;
+};
+
+static inline struct device *to_dma_dev(struct drm_device *dev)
+{
+	struct exynos_drm_private *priv = dev->dev_private;
+
+	return priv->dma_dev;
+}
+
+static inline bool is_drm_iommu_supported(struct drm_device *drm_dev)
+{
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+
+	return priv->mapping ? true : false;
+}
+
+int exynos_drm_register_dma(struct drm_device *drm, struct device *dev,
+			    void **dma_priv);
+void exynos_drm_unregister_dma(struct drm_device *drm, struct device *dev,
+			       void **dma_priv);
+void exynos_drm_cleanup_dma(struct drm_device *drm);
+
+#ifdef CONFIG_DRM_EXYNOS_DPI
+struct drm_encoder *exynos_dpi_probe(struct device *dev);
+int exynos_dpi_remove(struct drm_encoder *encoder);
+int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder);
+#else
+static inline struct drm_encoder *
+exynos_dpi_probe(struct device *dev) { return NULL; }
+static inline int exynos_dpi_remove(struct drm_encoder *encoder)
+{
+	return 0;
+}
+static inline int exynos_dpi_bind(struct drm_device *dev,
+				  struct drm_encoder *encoder)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_DRM_EXYNOS_FIMC
+int exynos_drm_check_fimc_device(struct device *dev);
+#else
+static inline int exynos_drm_check_fimc_device(struct device *dev)
+{
+	return 0;
+}
+#endif
+
+int exynos_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state,
+			 bool nonblock);
+
+
+extern struct platform_driver fimd_driver;
+extern struct platform_driver exynos5433_decon_driver;
+extern struct platform_driver decon_driver;
+extern struct platform_driver dp_driver;
+extern struct platform_driver dsi_driver;
+extern struct platform_driver mixer_driver;
+extern struct platform_driver hdmi_driver;
+extern struct platform_driver vidi_driver;
+extern struct platform_driver g2d_driver;
+extern struct platform_driver fimc_driver;
+extern struct platform_driver rotator_driver;
+extern struct platform_driver scaler_driver;
+extern struct platform_driver gsc_driver;
+extern struct platform_driver mic_driver;
+#endif