27 __diag_ignore_all("-Woverride-init", "Allow field initialization overrides for display info");
1384  * platforms. Their display will be probed automatically based on the IP version
1426  * Separate detection for no display cases to keep the display id array simple.
1503 	const struct intel_display_device_info *display;  member
1513 probe_gmdid_display(struct intel_display *display, struct intel_display_ip_ver *ip_ver)  in probe_gmdid_display()  argument
1515 	struct pci_dev *pdev = to_pci_dev(display->drm->dev);  in probe_gmdid_display()
1523 		drm_err(display->drm,  in probe_gmdid_display()
1524 			"Cannot map MMIO BAR to read display GMD_ID\n");  in probe_gmdid_display()
1532 		drm_dbg_kms(display->drm, "Device doesn't have display\n");  in probe_gmdid_display()
1544 			return gmdid_display_map[i].display;  in probe_gmdid_display()
1548 	drm_err(display->drm,  in probe_gmdid_display()
1549 		"Unrecognized display IP version %d.%02d; disabling display.\n",  in probe_gmdid_display()
1580 static enum intel_step get_pre_gmdid_step(struct intel_display *display,  in get_pre_gmdid_step()  argument
1584 	struct pci_dev *pdev = to_pci_dev(display->drm->dev);  in get_pre_gmdid_step()
1603 		drm_warn(display->drm, "Unknown revision 0x%02x\n", revision);  in get_pre_gmdid_step()
1617 			drm_dbg_kms(display->drm, "Using display stepping for revision 0x%02x\n",  in get_pre_gmdid_step()
1621 			drm_dbg_kms(display->drm, "Using future display stepping\n");  in get_pre_gmdid_step()
1626 	drm_WARN_ON(display->drm, step == STEP_NONE);  in get_pre_gmdid_step()
1652 	struct intel_display *display;  in intel_display_device_probe()  local
1659 	display = kzalloc(sizeof(*display), GFP_KERNEL);  in intel_display_device_probe()
1660 	if (!display)  in intel_display_device_probe()
1664 	display->drm = pci_get_drvdata(pdev);  in intel_display_device_probe()
1666 	intel_display_params_copy(&display->params);  in intel_display_device_probe()
1669 		drm_dbg_kms(display->drm, "Device doesn't have display\n");  in intel_display_device_probe()
1675 		drm_dbg_kms(display->drm,  in intel_display_device_probe()
1676 			    "Unknown device ID %04x; disabling display.\n",  in intel_display_device_probe()
1683 		info = probe_gmdid_display(display, &ip_ver);  in intel_display_device_probe()
1687 	DISPLAY_INFO(display) = info;  in intel_display_device_probe()
1689 	memcpy(DISPLAY_RUNTIME_INFO(display),  in intel_display_device_probe()
1690 	       &DISPLAY_INFO(display)->__runtime_defaults,  in intel_display_device_probe()
1691 	       sizeof(*DISPLAY_RUNTIME_INFO(display)));  in intel_display_device_probe()
1693 	drm_WARN_ON(display->drm, !desc->name ||  in intel_display_device_probe()
1696 	display->platform = desc->platforms;  in intel_display_device_probe()
1700 		drm_WARN_ON(display->drm, !subdesc->name ||  in intel_display_device_probe()
1703 		display_platforms_or(&display->platform, &subdesc->platforms);  in intel_display_device_probe()
1706 		drm_WARN_ON(display->drm,  in intel_display_device_probe()
1707 			    display_platforms_weight(&display->platform) !=  in intel_display_device_probe()
1713 		DISPLAY_RUNTIME_INFO(display)->ip = ip_ver;  in intel_display_device_probe()
1716 			drm_dbg_kms(display->drm, "Using future display stepping\n");  in intel_display_device_probe()
1720 		step = get_pre_gmdid_step(display, &desc->step_info,  in intel_display_device_probe()
1724 	DISPLAY_RUNTIME_INFO(display)->step = step;  in intel_display_device_probe()
1726 	drm_info(display->drm, "Found %s%s%s (device ID %04x) %s display version %u.%02u stepping %s\n",  in intel_display_device_probe()
1728 		 pdev->device, display->platform.dgfx ? "discrete" : "integrated",  in intel_display_device_probe()
1729 		 DISPLAY_RUNTIME_INFO(display)->ip.ver,  in intel_display_device_probe()
1730 		 DISPLAY_RUNTIME_INFO(display)->ip.rel,  in intel_display_device_probe()
1733 	return display;  in intel_display_device_probe()
1736 	DISPLAY_INFO(display) = &no_display;  in intel_display_device_probe()
1738 	return display;  in intel_display_device_probe()
1741 void intel_display_device_remove(struct intel_display *display)  in intel_display_device_remove()  argument
1743 	if (!display)  in intel_display_device_remove()
1746 	intel_display_params_free(&display->params);  in intel_display_device_remove()
1747 	kfree(display);  in intel_display_device_remove()
1750 static void __intel_display_device_info_runtime_init(struct intel_display *display)  in __intel_display_device_info_runtime_init()  argument
1752 	struct intel_display_runtime_info *display_runtime = DISPLAY_RUNTIME_INFO(display);  in __intel_display_device_info_runtime_init()
1760 	if (display->platform.haswell_ult || display->platform.broadwell_ult)  in __intel_display_device_info_runtime_init()
1763 	if (display->platform.icelake_port_f)  in __intel_display_device_info_runtime_init()
1767 	if (display->platform.alderlake_s && IS_DISPLAY_STEP(display, STEP_A0, STEP_A2))  in __intel_display_device_info_runtime_init()
1768 		for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1770 	else if (DISPLAY_VER(display) >= 11) {  in __intel_display_device_info_runtime_init()
1771 		for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1773 	} else if (DISPLAY_VER(display) >= 9) {  in __intel_display_device_info_runtime_init()
1779 	if (DISPLAY_VER(display) >= 13 || HAS_D12_PLANE_MINIMIZATION(display))  in __intel_display_device_info_runtime_init()
1780 		for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1782 	else if (DISPLAY_VER(display) >= 11)  in __intel_display_device_info_runtime_init()
1783 		for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1785 	else if (DISPLAY_VER(display) == 10)  in __intel_display_device_info_runtime_init()
1786 		for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1788 	else if (display->platform.broxton) {  in __intel_display_device_info_runtime_init()
1801 	} else if (display->platform.valleyview || display->platform.cherryview) {  in __intel_display_device_info_runtime_init()
1802 		for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1804 	} else if (DISPLAY_VER(display) >= 5 || display->platform.g4x) {  in __intel_display_device_info_runtime_init()
1805 		for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1809 	if ((display->platform.dgfx || DISPLAY_VER(display) >= 14) &&  in __intel_display_device_info_runtime_init()
1810 	    !(intel_de_read(display, GU_CNTL_PROTECTED) & DEPRESENT)) {  in __intel_display_device_info_runtime_init()
1811 		drm_info(display->drm, "Display not present, disabling\n");  in __intel_display_device_info_runtime_init()
1815 	if (IS_DISPLAY_VER(display, 7, 8) && HAS_PCH_SPLIT(display)) {  in __intel_display_device_info_runtime_init()
1816 		u32 fuse_strap = intel_de_read(display, FUSE_STRAP);  in __intel_display_device_info_runtime_init()
1817 		u32 sfuse_strap = intel_de_read(display, SFUSE_STRAP);  in __intel_display_device_info_runtime_init()
1820 		 * SFUSE_STRAP is supposed to have a bit signalling the display  in __intel_display_device_info_runtime_init()
1822 		 * certain cases, fused off display means that PCH display  in __intel_display_device_info_runtime_init()
1830 		    (HAS_PCH_CPT(display) &&  in __intel_display_device_info_runtime_init()
1832 			drm_info(display->drm,  in __intel_display_device_info_runtime_init()
1833 				 "Display fused off, disabling\n");  in __intel_display_device_info_runtime_init()
1836 			drm_info(display->drm, "PipeC fused off\n");  in __intel_display_device_info_runtime_init()
1840 	} else if (DISPLAY_VER(display) >= 9) {  in __intel_display_device_info_runtime_init()
1841 		u32 dfsm = intel_de_read(display, SKL_DFSM);  in __intel_display_device_info_runtime_init()
1859 		if (DISPLAY_VER(display) >= 12 &&  in __intel_display_device_info_runtime_init()
1872 		if (display->platform.dg2 || DISPLAY_VER(display) < 13) {  in __intel_display_device_info_runtime_init()
1877 		if (DISPLAY_VER(display) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE))  in __intel_display_device_info_runtime_init()
1880 		if (IS_DISPLAY_VER(display, 10, 12) &&  in __intel_display_device_info_runtime_init()
1884 		if (DISPLAY_VER(display) >= 20 &&  in __intel_display_device_info_runtime_init()
1889 	if (DISPLAY_VER(display) >= 20) {  in __intel_display_device_info_runtime_init()
1890 		u32 cap = intel_de_read(display, XE2LPD_DE_CAP);  in __intel_display_device_info_runtime_init()
1898 			for_each_pipe(display, pipe)  in __intel_display_device_info_runtime_init()
1904 	if (DISPLAY_VER(display) >= 30)  in __intel_display_device_info_runtime_init()
1906 			intel_de_read(display, PICA_PHY_CONFIG_CONTROL) & EDP_ON_TYPEC;  in __intel_display_device_info_runtime_init()
1908 	display_runtime->rawclk_freq = intel_read_rawclk(display);  in __intel_display_device_info_runtime_init()
1909 	drm_dbg_kms(display->drm, "rawclk rate: %d kHz\n",  in __intel_display_device_info_runtime_init()
1918 void intel_display_device_info_runtime_init(struct intel_display *display)  in intel_display_device_info_runtime_init()  argument
1920 	if (HAS_DISPLAY(display))  in intel_display_device_info_runtime_init()
1921 		__intel_display_device_info_runtime_init(display);  in intel_display_device_info_runtime_init()
1923 	/* Display may have been disabled by runtime init */  in intel_display_device_info_runtime_init()
1924 	if (!HAS_DISPLAY(display)) {  in intel_display_device_info_runtime_init()
1925 		display->drm->driver_features &= ~(DRIVER_MODESET | DRIVER_ATOMIC);  in intel_display_device_info_runtime_init()
1926 		display->info.__device_info = &no_display;  in intel_display_device_info_runtime_init()
1930 	if (!display->params.nuclear_pageflip &&  in intel_display_device_info_runtime_init()
1931 	    DISPLAY_VER(display) < 5 && !display->platform.g4x)  in intel_display_device_info_runtime_init()
1932 		display->drm->driver_features &= ~DRIVER_ATOMIC;  in intel_display_device_info_runtime_init()
1940 		drm_printf(p, "display version: %u.%02u\n",  in intel_display_device_info_print()
1944 		drm_printf(p, "display version: %u\n",  in intel_display_device_info_print()
1947 	drm_printf(p, "display stepping: %s\n", intel_step_name(runtime->step));  in intel_display_device_info_print()
1960 bool intel_display_device_present(struct intel_display *display)  in intel_display_device_present()  argument
1962 	return display && HAS_DISPLAY(display);  in intel_display_device_present()
1966  * Assuming the device has display hardware, should it be enabled?
1968  * It's an error to call this function if the device does not have display
1971  * Disabling display means taking over the display hardware, putting it to
1974 bool intel_display_device_enabled(struct intel_display *display)  in intel_display_device_enabled()  argument
1977 	drm_WARN_ON(display->drm, !HAS_DISPLAY(display));  in intel_display_device_enabled()
1979 	return !display->params.disable_display &&  in intel_display_device_enabled()
1980 		!intel_opregion_headless_sku(display);  in intel_display_device_enabled()