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linux_dsm_epyc7002/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
Alex Deucher b5e3241316 drm/amdgpu: save/restore backlight level in legacy dce code 
Save/restore the backlight level scratch register in S3/S4 so the
backlight level comes back at the previously requested level.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=199047
Fixes: 4ec6ecf48c (drm/amdgpu: drop scratch regs save and restore from S3/S4 handling)
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-14 15:39:51 -05:00

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/*
* Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
* VA Linux Systems Inc., Fremont, California.
* Copyright 2008 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Original Authors:
* Kevin E. Martin, Rickard E. Faith, Alan Hourihane
*
* Kernel port Author: Dave Airlie
*/
#ifndef AMDGPU_MODE_H
#define AMDGPU_MODE_H
#include <drm/drm_crtc.h>
#include <drm/drm_edid.h>
#include <drm/drm_encoder.h>
#include <drm/drm_dp_helper.h>
#include <drm/drm_fixed.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_fb_helper.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/hrtimer.h>
#include "amdgpu_irq.h"
#include <drm/drm_dp_mst_helper.h>
#include "modules/inc/mod_freesync.h"
struct amdgpu_bo;
struct amdgpu_device;
struct amdgpu_encoder;
struct amdgpu_router;
struct amdgpu_hpd;
#define to_amdgpu_crtc(x) container_of(x, struct amdgpu_crtc, base)
#define to_amdgpu_connector(x) container_of(x, struct amdgpu_connector, base)
#define to_amdgpu_encoder(x) container_of(x, struct amdgpu_encoder, base)
#define to_amdgpu_framebuffer(x) container_of(x, struct amdgpu_framebuffer, base)
#define to_amdgpu_plane(x) container_of(x, struct amdgpu_plane, base)
#define to_dm_plane_state(x) container_of(x, struct dm_plane_state, base);
#define AMDGPU_MAX_HPD_PINS 6
#define AMDGPU_MAX_CRTCS 6
#define AMDGPU_MAX_PLANES 6
#define AMDGPU_MAX_AFMT_BLOCKS 9
enum amdgpu_rmx_type {
RMX_OFF,
RMX_FULL,
RMX_CENTER,
RMX_ASPECT
};
enum amdgpu_underscan_type {
UNDERSCAN_OFF,
UNDERSCAN_ON,
UNDERSCAN_AUTO,
};
#define AMDGPU_HPD_CONNECT_INT_DELAY_IN_MS 50
#define AMDGPU_HPD_DISCONNECT_INT_DELAY_IN_MS 10
enum amdgpu_hpd_id {
AMDGPU_HPD_1 = 0,
AMDGPU_HPD_2,
AMDGPU_HPD_3,
AMDGPU_HPD_4,
AMDGPU_HPD_5,
AMDGPU_HPD_6,
AMDGPU_HPD_NONE = 0xff,
};
enum amdgpu_crtc_irq {
AMDGPU_CRTC_IRQ_VBLANK1 = 0,
AMDGPU_CRTC_IRQ_VBLANK2,
AMDGPU_CRTC_IRQ_VBLANK3,
AMDGPU_CRTC_IRQ_VBLANK4,
AMDGPU_CRTC_IRQ_VBLANK5,
AMDGPU_CRTC_IRQ_VBLANK6,
AMDGPU_CRTC_IRQ_VLINE1,
AMDGPU_CRTC_IRQ_VLINE2,
AMDGPU_CRTC_IRQ_VLINE3,
AMDGPU_CRTC_IRQ_VLINE4,
AMDGPU_CRTC_IRQ_VLINE5,
AMDGPU_CRTC_IRQ_VLINE6,
AMDGPU_CRTC_IRQ_NONE = 0xff
};
enum amdgpu_pageflip_irq {
AMDGPU_PAGEFLIP_IRQ_D1 = 0,
AMDGPU_PAGEFLIP_IRQ_D2,
AMDGPU_PAGEFLIP_IRQ_D3,
AMDGPU_PAGEFLIP_IRQ_D4,
AMDGPU_PAGEFLIP_IRQ_D5,
AMDGPU_PAGEFLIP_IRQ_D6,
AMDGPU_PAGEFLIP_IRQ_NONE = 0xff
};
enum amdgpu_flip_status {
AMDGPU_FLIP_NONE,
AMDGPU_FLIP_PENDING,
AMDGPU_FLIP_SUBMITTED
};
#define AMDGPU_MAX_I2C_BUS 16
/* amdgpu gpio-based i2c
* 1. "mask" reg and bits
* grabs the gpio pins for software use
* 0=not held 1=held
* 2. "a" reg and bits
* output pin value
* 0=low 1=high
* 3. "en" reg and bits
* sets the pin direction
* 0=input 1=output
* 4. "y" reg and bits
* input pin value
* 0=low 1=high
*/
struct amdgpu_i2c_bus_rec {
bool valid;
/* id used by atom */
uint8_t i2c_id;
/* id used by atom */
enum amdgpu_hpd_id hpd;
/* can be used with hw i2c engine */
bool hw_capable;
/* uses multi-media i2c engine */
bool mm_i2c;
/* regs and bits */
uint32_t mask_clk_reg;
uint32_t mask_data_reg;
uint32_t a_clk_reg;
uint32_t a_data_reg;
uint32_t en_clk_reg;
uint32_t en_data_reg;
uint32_t y_clk_reg;
uint32_t y_data_reg;
uint32_t mask_clk_mask;
uint32_t mask_data_mask;
uint32_t a_clk_mask;
uint32_t a_data_mask;
uint32_t en_clk_mask;
uint32_t en_data_mask;
uint32_t y_clk_mask;
uint32_t y_data_mask;
};
#define AMDGPU_MAX_BIOS_CONNECTOR 16
/* pll flags */
#define AMDGPU_PLL_USE_BIOS_DIVS (1 << 0)
#define AMDGPU_PLL_NO_ODD_POST_DIV (1 << 1)
#define AMDGPU_PLL_USE_REF_DIV (1 << 2)
#define AMDGPU_PLL_LEGACY (1 << 3)
#define AMDGPU_PLL_PREFER_LOW_REF_DIV (1 << 4)
#define AMDGPU_PLL_PREFER_HIGH_REF_DIV (1 << 5)
#define AMDGPU_PLL_PREFER_LOW_FB_DIV (1 << 6)
#define AMDGPU_PLL_PREFER_HIGH_FB_DIV (1 << 7)
#define AMDGPU_PLL_PREFER_LOW_POST_DIV (1 << 8)
#define AMDGPU_PLL_PREFER_HIGH_POST_DIV (1 << 9)
#define AMDGPU_PLL_USE_FRAC_FB_DIV (1 << 10)
#define AMDGPU_PLL_PREFER_CLOSEST_LOWER (1 << 11)
#define AMDGPU_PLL_USE_POST_DIV (1 << 12)
#define AMDGPU_PLL_IS_LCD (1 << 13)
#define AMDGPU_PLL_PREFER_MINM_OVER_MAXP (1 << 14)
struct amdgpu_pll {
/* reference frequency */
uint32_t reference_freq;
/* fixed dividers */
uint32_t reference_div;
uint32_t post_div;
/* pll in/out limits */
uint32_t pll_in_min;
uint32_t pll_in_max;
uint32_t pll_out_min;
uint32_t pll_out_max;
uint32_t lcd_pll_out_min;
uint32_t lcd_pll_out_max;
uint32_t best_vco;
/* divider limits */
uint32_t min_ref_div;
uint32_t max_ref_div;
uint32_t min_post_div;
uint32_t max_post_div;
uint32_t min_feedback_div;
uint32_t max_feedback_div;
uint32_t min_frac_feedback_div;
uint32_t max_frac_feedback_div;
/* flags for the current clock */
uint32_t flags;
/* pll id */
uint32_t id;
};
struct amdgpu_i2c_chan {
struct i2c_adapter adapter;
struct drm_device *dev;
struct i2c_algo_bit_data bit;
struct amdgpu_i2c_bus_rec rec;
struct drm_dp_aux aux;
bool has_aux;
struct mutex mutex;
};
struct amdgpu_fbdev;
struct amdgpu_afmt {
bool enabled;
int offset;
bool last_buffer_filled_status;
int id;
struct amdgpu_audio_pin *pin;
};
/*
* Audio
*/
struct amdgpu_audio_pin {
int channels;
int rate;
int bits_per_sample;
u8 status_bits;
u8 category_code;
u32 offset;
bool connected;
u32 id;
};
struct amdgpu_audio {
bool enabled;
struct amdgpu_audio_pin pin[AMDGPU_MAX_AFMT_BLOCKS];
int num_pins;
};
struct amdgpu_display_funcs {
/* display watermarks */
void (*bandwidth_update)(struct amdgpu_device *adev);
/* get frame count */
u32 (*vblank_get_counter)(struct amdgpu_device *adev, int crtc);
/* set backlight level */
void (*backlight_set_level)(struct amdgpu_encoder *amdgpu_encoder,
u8 level);
/* get backlight level */
u8 (*backlight_get_level)(struct amdgpu_encoder *amdgpu_encoder);
/* hotplug detect */
bool (*hpd_sense)(struct amdgpu_device *adev, enum amdgpu_hpd_id hpd);
void (*hpd_set_polarity)(struct amdgpu_device *adev,
enum amdgpu_hpd_id hpd);
u32 (*hpd_get_gpio_reg)(struct amdgpu_device *adev);
/* pageflipping */
void (*page_flip)(struct amdgpu_device *adev,
int crtc_id, u64 crtc_base, bool async);
int (*page_flip_get_scanoutpos)(struct amdgpu_device *adev, int crtc,
u32 *vbl, u32 *position);
/* display topology setup */
void (*add_encoder)(struct amdgpu_device *adev,
uint32_t encoder_enum,
uint32_t supported_device,
u16 caps);
void (*add_connector)(struct amdgpu_device *adev,
uint32_t connector_id,
uint32_t supported_device,
int connector_type,
struct amdgpu_i2c_bus_rec *i2c_bus,
uint16_t connector_object_id,
struct amdgpu_hpd *hpd,
struct amdgpu_router *router);
/* it is used to enter or exit into free sync mode */
int (*notify_freesync)(struct drm_device *dev, void *data,
struct drm_file *filp);
/* it is used to allow enablement of freesync mode */
int (*set_freesync_property)(struct drm_connector *connector,
struct drm_property *property,
uint64_t val);
};
struct amdgpu_framebuffer {
struct drm_framebuffer base;
struct drm_gem_object *obj;
/* caching for later use */
uint64_t address;
};
struct amdgpu_fbdev {
struct drm_fb_helper helper;
struct amdgpu_framebuffer rfb;
struct list_head fbdev_list;
struct amdgpu_device *adev;
};
struct amdgpu_mode_info {
struct atom_context *atom_context;
struct card_info *atom_card_info;
bool mode_config_initialized;
struct amdgpu_crtc *crtcs[AMDGPU_MAX_CRTCS];
struct amdgpu_plane *planes[AMDGPU_MAX_PLANES];
struct amdgpu_afmt *afmt[AMDGPU_MAX_AFMT_BLOCKS];
/* DVI-I properties */
struct drm_property *coherent_mode_property;
/* DAC enable load detect */
struct drm_property *load_detect_property;
/* underscan */
struct drm_property *underscan_property;
struct drm_property *underscan_hborder_property;
struct drm_property *underscan_vborder_property;
/* audio */
struct drm_property *audio_property;
/* FMT dithering */
struct drm_property *dither_property;
/* hardcoded DFP edid from BIOS */
struct edid *bios_hardcoded_edid;
int bios_hardcoded_edid_size;
/* pointer to fbdev info structure */
struct amdgpu_fbdev *rfbdev;
/* firmware flags */
u16 firmware_flags;
/* pointer to backlight encoder */
struct amdgpu_encoder *bl_encoder;
u8 bl_level; /* saved backlight level */
struct amdgpu_audio audio; /* audio stuff */
int num_crtc; /* number of crtcs */
int num_hpd; /* number of hpd pins */
int num_dig; /* number of dig blocks */
int disp_priority;
const struct amdgpu_display_funcs *funcs;
const enum drm_plane_type *plane_type;
};
#define AMDGPU_MAX_BL_LEVEL 0xFF
#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
struct amdgpu_backlight_privdata {
struct amdgpu_encoder *encoder;
uint8_t negative;
};
#endif
struct amdgpu_atom_ss {
uint16_t percentage;
uint16_t percentage_divider;
uint8_t type;
uint16_t step;
uint8_t delay;
uint8_t range;
uint8_t refdiv;
/* asic_ss */
uint16_t rate;
uint16_t amount;
};
struct amdgpu_crtc {
struct drm_crtc base;
int crtc_id;
bool enabled;
bool can_tile;
uint32_t crtc_offset;
struct drm_gem_object *cursor_bo;
uint64_t cursor_addr;
int cursor_x;
int cursor_y;
int cursor_hot_x;
int cursor_hot_y;
int cursor_width;
int cursor_height;
int max_cursor_width;
int max_cursor_height;
enum amdgpu_rmx_type rmx_type;
u8 h_border;
u8 v_border;
fixed20_12 vsc;
fixed20_12 hsc;
struct drm_display_mode native_mode;
u32 pll_id;
/* page flipping */
struct amdgpu_flip_work *pflip_works;
enum amdgpu_flip_status pflip_status;
int deferred_flip_completion;
/* pll sharing */
struct amdgpu_atom_ss ss;
bool ss_enabled;
u32 adjusted_clock;
int bpc;
u32 pll_reference_div;
u32 pll_post_div;
u32 pll_flags;
struct drm_encoder *encoder;
struct drm_connector *connector;
/* for dpm */
u32 line_time;
u32 wm_low;
u32 wm_high;
u32 lb_vblank_lead_lines;
struct drm_display_mode hw_mode;
/* for virtual dce */
struct hrtimer vblank_timer;
enum amdgpu_interrupt_state vsync_timer_enabled;
int otg_inst;
struct drm_pending_vblank_event *event;
};
struct amdgpu_plane {
struct drm_plane base;
enum drm_plane_type plane_type;
};
struct amdgpu_encoder_atom_dig {
bool linkb;
/* atom dig */
bool coherent_mode;
int dig_encoder; /* -1 disabled, 0 DIGA, 1 DIGB, etc. */
/* atom lvds/edp */
uint32_t lcd_misc;
uint16_t panel_pwr_delay;
uint32_t lcd_ss_id;
/* panel mode */
struct drm_display_mode native_mode;
struct backlight_device *bl_dev;
int dpms_mode;
uint8_t backlight_level;
int panel_mode;
struct amdgpu_afmt *afmt;
};
struct amdgpu_encoder {
struct drm_encoder base;
uint32_t encoder_enum;
uint32_t encoder_id;
uint32_t devices;
uint32_t active_device;
uint32_t flags;
uint32_t pixel_clock;
enum amdgpu_rmx_type rmx_type;
enum amdgpu_underscan_type underscan_type;
uint32_t underscan_hborder;
uint32_t underscan_vborder;
struct drm_display_mode native_mode;
void *enc_priv;
int audio_polling_active;
bool is_ext_encoder;
u16 caps;
};
struct amdgpu_connector_atom_dig {
/* displayport */
u8 dpcd[DP_RECEIVER_CAP_SIZE];
u8 dp_sink_type;
int dp_clock;
int dp_lane_count;
bool edp_on;
};
struct amdgpu_gpio_rec {
bool valid;
u8 id;
u32 reg;
u32 mask;
u32 shift;
};
struct amdgpu_hpd {
enum amdgpu_hpd_id hpd;
u8 plugged_state;
struct amdgpu_gpio_rec gpio;
};
struct amdgpu_router {
u32 router_id;
struct amdgpu_i2c_bus_rec i2c_info;
u8 i2c_addr;
/* i2c mux */
bool ddc_valid;
u8 ddc_mux_type;
u8 ddc_mux_control_pin;
u8 ddc_mux_state;
/* clock/data mux */
bool cd_valid;
u8 cd_mux_type;
u8 cd_mux_control_pin;
u8 cd_mux_state;
};
enum amdgpu_connector_audio {
AMDGPU_AUDIO_DISABLE = 0,
AMDGPU_AUDIO_ENABLE = 1,
AMDGPU_AUDIO_AUTO = 2
};
enum amdgpu_connector_dither {
AMDGPU_FMT_DITHER_DISABLE = 0,
AMDGPU_FMT_DITHER_ENABLE = 1,
};
struct amdgpu_dm_dp_aux {
struct drm_dp_aux aux;
struct ddc_service *ddc_service;
};
struct amdgpu_i2c_adapter {
struct i2c_adapter base;
struct ddc_service *ddc_service;
};
#define TO_DM_AUX(x) container_of((x), struct amdgpu_dm_dp_aux, aux)
struct amdgpu_connector {
struct drm_connector base;
uint32_t connector_id;
uint32_t devices;
struct amdgpu_i2c_chan *ddc_bus;
/* some systems have an hdmi and vga port with a shared ddc line */
bool shared_ddc;
bool use_digital;
/* we need to mind the EDID between detect
and get modes due to analog/digital/tvencoder */
struct edid *edid;
void *con_priv;
bool dac_load_detect;
bool detected_by_load; /* if the connection status was determined by load */
uint16_t connector_object_id;
struct amdgpu_hpd hpd;
struct amdgpu_router router;
struct amdgpu_i2c_chan *router_bus;
enum amdgpu_connector_audio audio;
enum amdgpu_connector_dither dither;
unsigned pixelclock_for_modeset;
};
/* TODO: start to use this struct and remove same field from base one */
struct amdgpu_mst_connector {
struct amdgpu_connector base;
struct drm_dp_mst_topology_mgr mst_mgr;
struct amdgpu_dm_dp_aux dm_dp_aux;
struct drm_dp_mst_port *port;
struct amdgpu_connector *mst_port;
bool is_mst_connector;
struct amdgpu_encoder *mst_encoder;
};
#define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \
((em) == ATOM_ENCODER_MODE_DP_MST))
/* Driver internal use only flags of amdgpu_display_get_crtc_scanoutpos() */
#define DRM_SCANOUTPOS_VALID (1 << 0)
#define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
#define USE_REAL_VBLANKSTART (1 << 30)
#define GET_DISTANCE_TO_VBLANKSTART (1 << 31)
void amdgpu_link_encoder_connector(struct drm_device *dev);
struct drm_connector *
amdgpu_get_connector_for_encoder(struct drm_encoder *encoder);
struct drm_connector *
amdgpu_get_connector_for_encoder_init(struct drm_encoder *encoder);
bool amdgpu_dig_monitor_is_duallink(struct drm_encoder *encoder,
u32 pixel_clock);
u16 amdgpu_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
struct drm_encoder *amdgpu_get_external_encoder(struct drm_encoder *encoder);
bool amdgpu_display_ddc_probe(struct amdgpu_connector *amdgpu_connector,
bool use_aux);
void amdgpu_encoder_set_active_device(struct drm_encoder *encoder);
int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev,
unsigned int pipe, unsigned int flags, int *vpos,
int *hpos, ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode);
int amdgpu_display_framebuffer_init(struct drm_device *dev,
struct amdgpu_framebuffer *rfb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj);
int amdgpufb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
void amdgpu_enc_destroy(struct drm_encoder *encoder);
void amdgpu_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
void amdgpu_panel_mode_fixup(struct drm_encoder *encoder,
struct drm_display_mode *adjusted_mode);
int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc);
/* fbdev layer */
int amdgpu_fbdev_init(struct amdgpu_device *adev);
void amdgpu_fbdev_fini(struct amdgpu_device *adev);
void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj);
int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int bpp, bool tiled);
/* amdgpu_display.c */
void amdgpu_display_print_display_setup(struct drm_device *dev);
int amdgpu_display_modeset_create_props(struct amdgpu_device *adev);
int amdgpu_display_crtc_set_config(struct drm_mode_set *set,
struct drm_modeset_acquire_ctx *ctx);
int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t page_flip_flags, uint32_t target,
struct drm_modeset_acquire_ctx *ctx);
extern const struct drm_mode_config_funcs amdgpu_mode_funcs;
#endif
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