drivers/gpu/drm/i915/display/intel_display_device.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2023 Intel Corporation
 */

#ifndef __INTEL_DISPLAY_DEVICE_H__
#define __INTEL_DISPLAY_DEVICE_H__

#include <linux/types.h>

#include "intel_display_conversion.h"
#include "intel_display_limits.h"

struct drm_i915_private;
struct drm_printer;

/* Keep in gen based order, and chronological order within a gen */
enum intel_display_platform {
	INTEL_DISPLAY_PLATFORM_UNINITIALIZED = 0,
	/* Display ver 2 */
	INTEL_DISPLAY_I830,
	INTEL_DISPLAY_I845G,
	INTEL_DISPLAY_I85X,
	INTEL_DISPLAY_I865G,
	/* Display ver 3 */
	INTEL_DISPLAY_I915G,
	INTEL_DISPLAY_I915GM,
	INTEL_DISPLAY_I945G,
	INTEL_DISPLAY_I945GM,
	INTEL_DISPLAY_G33,
	INTEL_DISPLAY_PINEVIEW,
	/* Display ver 4 */
	INTEL_DISPLAY_I965G,
	INTEL_DISPLAY_I965GM,
	INTEL_DISPLAY_G45,
	INTEL_DISPLAY_GM45,
	/* Display ver 5 */
	INTEL_DISPLAY_IRONLAKE,
	/* Display ver 6 */
	INTEL_DISPLAY_SANDYBRIDGE,
	/* Display ver 7 */
	INTEL_DISPLAY_IVYBRIDGE,
	INTEL_DISPLAY_VALLEYVIEW,
	INTEL_DISPLAY_HASWELL,
	/* Display ver 8 */
	INTEL_DISPLAY_BROADWELL,
	INTEL_DISPLAY_CHERRYVIEW,
	/* Display ver 9 */
	INTEL_DISPLAY_SKYLAKE,
	INTEL_DISPLAY_BROXTON,
	INTEL_DISPLAY_KABYLAKE,
	INTEL_DISPLAY_GEMINILAKE,
	INTEL_DISPLAY_COFFEELAKE,
	INTEL_DISPLAY_COMETLAKE,
	/* Display ver 11 */
	INTEL_DISPLAY_ICELAKE,
	INTEL_DISPLAY_JASPERLAKE,
	INTEL_DISPLAY_ELKHARTLAKE,
	/* Display ver 12 */
	INTEL_DISPLAY_TIGERLAKE,
	INTEL_DISPLAY_ROCKETLAKE,
	INTEL_DISPLAY_DG1,
	INTEL_DISPLAY_ALDERLAKE_S,
	/* Display ver 13 */
	INTEL_DISPLAY_ALDERLAKE_P,
	INTEL_DISPLAY_DG2,
	/* Display ver 14 (based on GMD ID) */
	INTEL_DISPLAY_METEORLAKE,
	/* Display ver 20 (based on GMD ID) */
	INTEL_DISPLAY_LUNARLAKE,
	/* Display ver 14.1 (based on GMD ID) */
	INTEL_DISPLAY_BATTLEMAGE,
};

enum intel_display_subplatform {
	INTEL_DISPLAY_SUBPLATFORM_UNINITIALIZED = 0,
	INTEL_DISPLAY_HASWELL_ULT,
	INTEL_DISPLAY_HASWELL_ULX,
	INTEL_DISPLAY_BROADWELL_ULT,
	INTEL_DISPLAY_BROADWELL_ULX,
	INTEL_DISPLAY_SKYLAKE_ULT,
	INTEL_DISPLAY_SKYLAKE_ULX,
	INTEL_DISPLAY_KABYLAKE_ULT,
	INTEL_DISPLAY_KABYLAKE_ULX,
	INTEL_DISPLAY_COFFEELAKE_ULT,
	INTEL_DISPLAY_COFFEELAKE_ULX,
	INTEL_DISPLAY_COMETLAKE_ULT,
	INTEL_DISPLAY_COMETLAKE_ULX,
	INTEL_DISPLAY_ICELAKE_PORT_F,
	INTEL_DISPLAY_TIGERLAKE_UY,
	INTEL_DISPLAY_ALDERLAKE_S_RAPTORLAKE_S,
	INTEL_DISPLAY_ALDERLAKE_P_ALDERLAKE_N,
	INTEL_DISPLAY_ALDERLAKE_P_RAPTORLAKE_P,
	INTEL_DISPLAY_ALDERLAKE_P_RAPTORLAKE_U,
	INTEL_DISPLAY_DG2_G10,
	INTEL_DISPLAY_DG2_G11,
	INTEL_DISPLAY_DG2_G12,
};

#define DEV_INFO_DISPLAY_FOR_EACH_FLAG(func) \
	/* Keep in alphabetical order */ \
	func(cursor_needs_physical); \
	func(has_cdclk_crawl); \
	func(has_cdclk_squash); \
	func(has_ddi); \
	func(has_dp_mst); \
	func(has_dsb); \
	func(has_fpga_dbg); \
	func(has_gmch); \
	func(has_hotplug); \
	func(has_hti); \
	func(has_ipc); \
	func(has_overlay); \
	func(has_psr); \
	func(has_psr_hw_tracking); \
	func(overlay_needs_physical); \
	func(supports_tv);

#define HAS_4TILE(i915)			(IS_DG2(i915) || DISPLAY_VER(i915) >= 14)
#define HAS_ASYNC_FLIPS(i915)		(DISPLAY_VER(i915) >= 5)
#define HAS_CDCLK_CRAWL(i915)		(DISPLAY_INFO(i915)->has_cdclk_crawl)
#define HAS_CDCLK_SQUASH(i915)		(DISPLAY_INFO(i915)->has_cdclk_squash)
#define HAS_CUR_FBC(i915)		(!HAS_GMCH(i915) && IS_DISPLAY_VER(i915, 7, 13))
#define HAS_D12_PLANE_MINIMIZATION(i915) (IS_ROCKETLAKE(i915) || IS_ALDERLAKE_S(i915))
#define HAS_DDI(i915)			(DISPLAY_INFO(i915)->has_ddi)
#define HAS_DISPLAY(i915)		(DISPLAY_RUNTIME_INFO(i915)->pipe_mask != 0)
#define HAS_DMC(i915)			(DISPLAY_RUNTIME_INFO(i915)->has_dmc)
#define HAS_DOUBLE_BUFFERED_M_N(i915)	(DISPLAY_VER(i915) >= 9 || IS_BROADWELL(i915))
#define HAS_DP_MST(i915)		(DISPLAY_INFO(i915)->has_dp_mst)
#define HAS_DP20(i915)			(IS_DG2(i915) || DISPLAY_VER(i915) >= 14)
#define HAS_DPT(i915)			(DISPLAY_VER(i915) >= 13)
#define HAS_DSB(i915)			(DISPLAY_INFO(i915)->has_dsb)
#define HAS_DSC(__i915)			(DISPLAY_RUNTIME_INFO(__i915)->has_dsc)
#define HAS_DSC_MST(__i915)		(DISPLAY_VER(__i915) >= 12 && HAS_DSC(__i915))
#define HAS_FBC(i915)			(DISPLAY_RUNTIME_INFO(i915)->fbc_mask != 0)
#define HAS_FPGA_DBG_UNCLAIMED(i915)	(DISPLAY_INFO(i915)->has_fpga_dbg)
#define HAS_FW_BLC(i915)		(DISPLAY_VER(i915) >= 3)
#define HAS_GMBUS_IRQ(i915)		(DISPLAY_VER(i915) >= 4)
#define HAS_GMBUS_BURST_READ(i915)	(DISPLAY_VER(i915) >= 10 || IS_KABYLAKE(i915))
#define HAS_GMCH(i915)			(DISPLAY_INFO(i915)->has_gmch)
#define HAS_HW_SAGV_WM(i915)		(DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))
#define HAS_IPC(i915)			(DISPLAY_INFO(i915)->has_ipc)
#define HAS_IPS(i915)			(IS_HASWELL_ULT(i915) || IS_BROADWELL(i915))
#define HAS_LRR(i915)			(DISPLAY_VER(i915) >= 12)
#define HAS_LSPCON(i915)		(IS_DISPLAY_VER(i915, 9, 10))
#define HAS_MBUS_JOINING(i915)		(IS_ALDERLAKE_P(i915) || DISPLAY_VER(i915) >= 14)
#define HAS_MSO(i915)			(DISPLAY_VER(i915) >= 12)
#define HAS_OVERLAY(i915)		(DISPLAY_INFO(i915)->has_overlay)
#define HAS_PSR(i915)			(DISPLAY_INFO(i915)->has_psr)
#define HAS_PSR_HW_TRACKING(i915)	(DISPLAY_INFO(i915)->has_psr_hw_tracking)
#define HAS_PSR2_SEL_FETCH(i915)	(DISPLAY_VER(i915) >= 12)
#define HAS_SAGV(i915)			(DISPLAY_VER(i915) >= 9 && !IS_LP(i915))
#define HAS_TRANSCODER(i915, trans)	((DISPLAY_RUNTIME_INFO(i915)->cpu_transcoder_mask & \
					  BIT(trans)) != 0)
#define HAS_VRR(i915)			(DISPLAY_VER(i915) >= 11)
#define HAS_AS_SDP(i915)		(DISPLAY_VER(i915) >= 13)
#define HAS_CMRR(i915)			(DISPLAY_VER(i915) >= 20)
#define INTEL_NUM_PIPES(i915)		(hweight8(DISPLAY_RUNTIME_INFO(i915)->pipe_mask))
#define I915_HAS_HOTPLUG(i915)		(DISPLAY_INFO(i915)->has_hotplug)
#define OVERLAY_NEEDS_PHYSICAL(i915)	(DISPLAY_INFO(i915)->overlay_needs_physical)
#define SUPPORTS_TV(i915)		(DISPLAY_INFO(i915)->supports_tv)

/* Check that device has a display IP version within the specific range. */
#define IS_DISPLAY_VER_FULL(__i915, from, until) ( \
	BUILD_BUG_ON_ZERO((from) < IP_VER(2, 0)) + \
	(DISPLAY_VER_FULL(__i915) >= (from) && \
	 DISPLAY_VER_FULL(__i915) <= (until)))

/*
 * Check if a device has a specific IP version as well as a stepping within the
 * specified range [from, until).  The lower bound is inclusive, the upper
 * bound is exclusive.  The most common use-case of this macro is for checking
 * bounds for workarounds, which usually have a stepping ("from") at which the
 * hardware issue is first present and another stepping ("until") at which a
 * hardware fix is present and the software workaround is no longer necessary.
 * E.g.,
 *
 *    IS_DISPLAY_VER_STEP(i915, IP_VER(14, 0), STEP_A0, STEP_B2)
 *    IS_DISPLAY_VER_STEP(i915, IP_VER(14, 0), STEP_C0, STEP_FOREVER)
 *
 * "STEP_FOREVER" can be passed as "until" for workarounds that have no upper
 * stepping bound for the specified IP version.
 */
#define IS_DISPLAY_VER_STEP(__i915, ipver, from, until) \
	(IS_DISPLAY_VER_FULL((__i915), (ipver), (ipver)) && \
	 IS_DISPLAY_STEP((__i915), (from), (until)))

#define DISPLAY_INFO(i915)		(__to_intel_display(i915)->info.__device_info)
#define DISPLAY_RUNTIME_INFO(i915)	(&__to_intel_display(i915)->info.__runtime_info)

#define DISPLAY_VER(i915)	(DISPLAY_RUNTIME_INFO(i915)->ip.ver)
#define DISPLAY_VER_FULL(i915)	IP_VER(DISPLAY_RUNTIME_INFO(i915)->ip.ver, \
				       DISPLAY_RUNTIME_INFO(i915)->ip.rel)
#define IS_DISPLAY_VER(i915, from, until) \
	(DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))

#define INTEL_DISPLAY_STEP(__i915) (DISPLAY_RUNTIME_INFO(__i915)->step)

#define IS_DISPLAY_STEP(__i915, since, until) \
	(drm_WARN_ON(__to_intel_display(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
	 INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) < (until))

struct intel_display_runtime_info {
	enum intel_display_platform platform;
	enum intel_display_subplatform subplatform;

	struct intel_display_ip_ver {
		u16 ver;
		u16 rel;
		u16 step; /* hardware */
	} ip;
	int step; /* symbolic */

	u32 rawclk_freq;

	u8 pipe_mask;
	u8 cpu_transcoder_mask;
	u16 port_mask;

	u8 num_sprites[I915_MAX_PIPES];
	u8 num_scalers[I915_MAX_PIPES];

	u8 fbc_mask;

	bool has_hdcp;
	bool has_dmc;
	bool has_dsc;
};

struct intel_display_device_info {
	/* Initial runtime info. */
	const struct intel_display_runtime_info __runtime_defaults;

	u8 abox_mask;

	struct {
		u16 size; /* in blocks */
		u8 slice_mask;
	} dbuf;

#define DEFINE_FLAG(name) u8 name:1
	DEV_INFO_DISPLAY_FOR_EACH_FLAG(DEFINE_FLAG);
#undef DEFINE_FLAG

	/* Global register offset for the display engine */
	u32 mmio_offset;

	/* Register offsets for the various display pipes and transcoders */
	u32 pipe_offsets[I915_MAX_TRANSCODERS];
	u32 trans_offsets[I915_MAX_TRANSCODERS];
	u32 cursor_offsets[I915_MAX_PIPES];

	struct {
		u32 degamma_lut_size;
		u32 gamma_lut_size;
		u32 degamma_lut_tests;
		u32 gamma_lut_tests;
	} color;
};

bool intel_display_device_enabled(struct drm_i915_private *i915);
void intel_display_device_probe(struct drm_i915_private *i915);
void intel_display_device_remove(struct drm_i915_private *i915);
void intel_display_device_info_runtime_init(struct drm_i915_private *i915);

void intel_display_device_info_print(const struct intel_display_device_info *info,
				     const struct intel_display_runtime_info *runtime,
				     struct drm_printer *p);

#endif