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* Copyright (C) 2012 Avionic Design GmbH
* Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#ifndef HOST1X_DRM_H
#define HOST1X_DRM_H 1
#include <uapi/drm/tegra_drm.h>
#include <linux/host1x.h>
#include <linux/iova.h>
#include <linux/of_gpio.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_encoder.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_fixed.h>
#include "gem.h"
#include "trace.h"
struct reset_control;
struct tegra_fb {
struct drm_framebuffer base;
struct tegra_bo **planes;
unsigned int num_planes;
struct tegra_fbdev {
struct drm_fb_helper base;
struct tegra_fb *fb;
struct tegra_drm {
struct drm_device *drm;
struct iommu_domain *domain;
struct mutex mm_lock;
struct drm_mm mm;
struct {
struct iova_domain domain;
unsigned long shift;
unsigned long limit;
} carveout;
struct mutex clients_lock;
struct list_head clients;
struct tegra_fbdev *fbdev;
unsigned int pitch_align;
struct {
struct drm_atomic_state *state;
struct work_struct work;
struct mutex lock;
} commit;
struct drm_atomic_state *state;
struct tegra_drm_client;
struct tegra_drm_context {
struct tegra_drm_client *client;
struct host1x_channel *channel;
unsigned int id;
struct tegra_drm_client_ops {
int (*open_channel)(struct tegra_drm_client *client,
struct tegra_drm_context *context);
void (*close_channel)(struct tegra_drm_context *context);
int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
int (*is_valid_class)(u32 class);
int (*submit)(struct tegra_drm_context *context,
struct drm_tegra_submit *args, struct drm_device *drm,
struct drm_file *file);
int tegra_drm_submit(struct tegra_drm_context *context,
struct drm_tegra_submit *args, struct drm_device *drm,
struct drm_file *file);
struct tegra_drm_client {
struct host1x_client base;
struct list_head list;
const struct tegra_drm_client_ops *ops;
static inline struct tegra_drm_client *
host1x_to_drm_client(struct host1x_client *client)
return container_of(client, struct tegra_drm_client, base);
int tegra_drm_register_client(struct tegra_drm *tegra,
struct tegra_drm_client *client);
int tegra_drm_unregister_client(struct tegra_drm *tegra,
struct tegra_drm_client *client);
int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
int tegra_drm_exit(struct tegra_drm *tegra);
void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
dma_addr_t iova);
struct tegra_dc_soc_info;
struct tegra_output;
struct tegra_dc_stats {
unsigned long frames;
unsigned long vblank;
unsigned long underflow;
unsigned long overflow;
struct tegra_dc {
struct host1x_client client;
struct host1x_syncpt *syncpt;
struct device *dev;
spinlock_t lock;
struct drm_crtc base;
unsigned int powergate;
int pipe;
struct clk *clk;
struct reset_control *rst;
void __iomem *regs;
int irq;
struct tegra_output *rgb;
struct tegra_dc_stats stats;
struct list_head list;
struct drm_info_list *debugfs_files;
struct drm_minor *minor;
struct dentry *debugfs;
/* page-flip handling */
struct drm_pending_vblank_event *event;
const struct tegra_dc_soc_info *soc;
struct iommu_domain *domain;
static inline struct tegra_dc *
host1x_client_to_dc(struct host1x_client *client)
return container_of(client, struct tegra_dc, client);
static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value,
unsigned int offset)
trace_dc_writel(dc->dev, offset, value);
writel(value, dc->regs + (offset << 2));
static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned int offset)
u32 value = readl(dc->regs + (offset << 2));
trace_dc_readl(dc->dev, offset, value);
return value;
struct tegra_dc_window {
struct {
unsigned int x;
unsigned int y;
unsigned int w;
unsigned int h;
} src;
struct {
unsigned int x;
unsigned int y;
unsigned int w;
unsigned int h;
} dst;
unsigned int bits_per_pixel;
unsigned int stride[2];
unsigned long base[3];
bool bottom_up;
struct tegra_bo_tiling tiling;
u32 format;
u32 swap;
/* from dc.c */
void tegra_dc_commit(struct tegra_dc *dc);
int tegra_dc_state_setup_clock(struct tegra_dc *dc,
struct drm_crtc_state *crtc_state,
struct clk *clk, unsigned long pclk,
unsigned int div);
struct tegra_output {
struct device_node *of_node;
struct device *dev;
struct drm_panel *panel;
struct i2c_adapter *ddc;
const struct edid *edid;
unsigned int hpd_irq;
int hpd_gpio;
enum of_gpio_flags hpd_gpio_flags;
struct drm_encoder encoder;
struct drm_connector connector;
static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
return container_of(e, struct tegra_output, encoder);
static inline struct tegra_output *connector_to_output(struct drm_connector *c)
return container_of(c, struct tegra_output, connector);
/* from rgb.c */
int tegra_dc_rgb_probe(struct tegra_dc *dc);
int tegra_dc_rgb_remove(struct tegra_dc *dc);
int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
int tegra_dc_rgb_exit(struct tegra_dc *dc);
/* from output.c */
int tegra_output_probe(struct tegra_output *output);
void tegra_output_remove(struct tegra_output *output);
int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
void tegra_output_exit(struct tegra_output *output);
int tegra_output_connector_get_modes(struct drm_connector *connector);
enum drm_connector_status
tegra_output_connector_detect(struct drm_connector *connector, bool force);
void tegra_output_connector_destroy(struct drm_connector *connector);
void tegra_output_encoder_destroy(struct drm_encoder *encoder);
/* from dpaux.c */
struct drm_dp_link;
struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
int drm_dp_aux_detach(struct drm_dp_aux *aux);
int drm_dp_aux_enable(struct drm_dp_aux *aux);
int drm_dp_aux_disable(struct drm_dp_aux *aux);
int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding);
int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
u8 pattern);
/* from fb.c */
struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
unsigned int index);
bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
struct tegra_bo_tiling *tiling);
struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
struct drm_file *file,
const struct drm_mode_fb_cmd2 *cmd);
int tegra_drm_fb_prepare(struct drm_device *drm);
void tegra_drm_fb_free(struct drm_device *drm);
int tegra_drm_fb_init(struct drm_device *drm);
void tegra_drm_fb_exit(struct drm_device *drm);
void tegra_drm_fb_suspend(struct drm_device *drm);
void tegra_drm_fb_resume(struct drm_device *drm);
void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
void tegra_fb_output_poll_changed(struct drm_device *drm);
extern struct platform_driver tegra_dc_driver;
extern struct platform_driver tegra_hdmi_driver;
extern struct platform_driver tegra_dsi_driver;
extern struct platform_driver tegra_dpaux_driver;
extern struct platform_driver tegra_sor_driver;
extern struct platform_driver tegra_gr2d_driver;
extern struct platform_driver tegra_gr3d_driver;
extern struct platform_driver tegra_vic_driver;
#endif /* HOST1X_DRM_H */