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Diffstat (limited to 'rr-cache/81579c8fec2fc49e618dd2283303b5d58dbd9033/postimage')
| -rw-r--r-- | rr-cache/81579c8fec2fc49e618dd2283303b5d58dbd9033/postimage | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/rr-cache/81579c8fec2fc49e618dd2283303b5d58dbd9033/postimage b/rr-cache/81579c8fec2fc49e618dd2283303b5d58dbd9033/postimage new file mode 100644 index 000000000000..2b39878cf670 --- /dev/null +++ b/rr-cache/81579c8fec2fc49e618dd2283303b5d58dbd9033/postimage @@ -0,0 +1,471 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2023 Intel Corporation + */ + +#include "xe_display.h" +#include "regs/xe_regs.h" + +#include <linux/fb.h> + +#include <drm/drm_drv.h> +#include <drm/drm_managed.h> +#include <drm/drm_probe_helper.h> +#include <uapi/drm/xe_drm.h> + +#include "soc/intel_dram.h" +#include "i915_drv.h" /* FIXME: HAS_DISPLAY() depends on this */ +#include "intel_acpi.h" +#include "intel_audio.h" +#include "intel_bw.h" +#include "intel_display.h" +#include "intel_display_driver.h" +#include "intel_display_irq.h" +#include "intel_display_types.h" +#include "intel_dmc.h" +#include "intel_dp.h" +#include "intel_encoder.h" +#include "intel_fbdev.h" +#include "intel_hdcp.h" +#include "intel_hotplug.h" +#include "intel_opregion.h" +#include "xe_module.h" + +/* Xe device functions */ + +static bool has_display(struct xe_device *xe) +{ + return HAS_DISPLAY(xe); +} + +/** + * xe_display_driver_probe_defer - Detect if we need to wait for other drivers + * early on + * @pdev: PCI device + * + * Returns: true if probe needs to be deferred, false otherwise + */ +bool xe_display_driver_probe_defer(struct pci_dev *pdev) +{ + if (!xe_modparam.probe_display) + return 0; + + return intel_display_driver_probe_defer(pdev); +} + +/** + * xe_display_driver_set_hooks - Add driver flags and hooks for display + * @driver: DRM device driver + * + * Set features and function hooks in @driver that are needed for driving the + * display IP. This sets the driver's capability of driving display, regardless + * if the device has it enabled + */ +void xe_display_driver_set_hooks(struct drm_driver *driver) +{ + if (!xe_modparam.probe_display) + return; + + driver->driver_features |= DRIVER_MODESET | DRIVER_ATOMIC; +} + +static void unset_display_features(struct xe_device *xe) +{ + xe->drm.driver_features &= ~(DRIVER_MODESET | DRIVER_ATOMIC); +} + +static void display_destroy(struct drm_device *dev, void *dummy) +{ + struct xe_device *xe = to_xe_device(dev); + + destroy_workqueue(xe->display.hotplug.dp_wq); +} + +/** + * xe_display_create - create display struct + * @xe: XE device instance + * + * Initialize all fields used by the display part. + * + * TODO: once everything can be inside a single struct, make the struct opaque + * to the rest of xe and return it to be xe->display. + * + * Returns: 0 on success + */ +int xe_display_create(struct xe_device *xe) +{ + spin_lock_init(&xe->display.fb_tracking.lock); + + xe->display.hotplug.dp_wq = alloc_ordered_workqueue("xe-dp", 0); + + return drmm_add_action_or_reset(&xe->drm, display_destroy, NULL); +} + +static void xe_display_fini_nommio(struct drm_device *dev, void *dummy) +{ + struct xe_device *xe = to_xe_device(dev); + + if (!xe->info.probe_display) + return; + + intel_power_domains_cleanup(xe); +} + +int xe_display_init_nommio(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return 0; + + /* Fake uncore lock */ + spin_lock_init(&xe->uncore.lock); + + /* This must be called before any calls to HAS_PCH_* */ + intel_detect_pch(xe); + + return drmm_add_action_or_reset(&xe->drm, xe_display_fini_nommio, xe); +} + +static void xe_display_fini_noirq(void *arg) +{ + struct xe_device *xe = arg; + struct intel_display *display = &xe->display; + + if (!xe->info.probe_display) + return; + + intel_display_driver_remove_noirq(xe); + intel_opregion_cleanup(display); +} + +int xe_display_init_noirq(struct xe_device *xe) +{ + struct intel_display *display = &xe->display; + int err; + + if (!xe->info.probe_display) + return 0; + + intel_display_driver_early_probe(xe); + + /* Early display init.. */ + intel_opregion_setup(display); + + /* + * Fill the dram structure to get the system dram info. This will be + * used for memory latency calculation. + */ + intel_dram_detect(xe); + + intel_bw_init_hw(xe); + + intel_display_device_info_runtime_init(xe); + + err = intel_display_driver_probe_noirq(xe); + if (err) { + intel_opregion_cleanup(display); + return err; + } + + return devm_add_action_or_reset(xe->drm.dev, xe_display_fini_noirq, xe); +} + +static void xe_display_fini_noaccel(void *arg) +{ + struct xe_device *xe = arg; + + if (!xe->info.probe_display) + return; + + intel_display_driver_remove_nogem(xe); +} + +int xe_display_init_noaccel(struct xe_device *xe) +{ + int err; + + if (!xe->info.probe_display) + return 0; + + err = intel_display_driver_probe_nogem(xe); + if (err) + return err; + + return devm_add_action_or_reset(xe->drm.dev, xe_display_fini_noaccel, xe); +} + +int xe_display_init(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return 0; + + return intel_display_driver_probe(xe); +} + +void xe_display_fini(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_hpd_poll_fini(xe); + + intel_hdcp_component_fini(xe); + intel_audio_deinit(xe); +} + +void xe_display_register(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_display_driver_register(xe); + intel_register_dsm_handler(); + intel_power_domains_enable(xe); +} + +void xe_display_unregister(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_unregister_dsm_handler(); + intel_power_domains_disable(xe); + intel_display_driver_unregister(xe); +} + +void xe_display_driver_remove(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_display_driver_remove(xe); +} + +/* IRQ-related functions */ + +void xe_display_irq_handler(struct xe_device *xe, u32 master_ctl) +{ + if (!xe->info.probe_display) + return; + + if (master_ctl & DISPLAY_IRQ) + gen11_display_irq_handler(xe); +} + +void xe_display_irq_enable(struct xe_device *xe, u32 gu_misc_iir) +{ + struct intel_display *display = &xe->display; + + if (!xe->info.probe_display) + return; + + if (gu_misc_iir & GU_MISC_GSE) + intel_opregion_asle_intr(display); +} + +void xe_display_irq_reset(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + gen11_display_irq_reset(xe); +} + +void xe_display_irq_postinstall(struct xe_device *xe, struct xe_gt *gt) +{ + if (!xe->info.probe_display) + return; + + if (gt->info.id == XE_GT0) + gen11_de_irq_postinstall(xe); +} + +static bool suspend_to_idle(void) +{ +#if IS_ENABLED(CONFIG_ACPI_SLEEP) + if (acpi_target_system_state() < ACPI_STATE_S3) + return true; +#endif + return false; +} + +static void xe_display_flush_cleanup_work(struct xe_device *xe) +{ + struct intel_crtc *crtc; + + for_each_intel_crtc(&xe->drm, crtc) { + struct drm_crtc_commit *commit; + + spin_lock(&crtc->base.commit_lock); + commit = list_first_entry_or_null(&crtc->base.commit_list, + struct drm_crtc_commit, commit_entry); + if (commit) + drm_crtc_commit_get(commit); + spin_unlock(&crtc->base.commit_lock); + + if (commit) { + wait_for_completion(&commit->cleanup_done); + drm_crtc_commit_put(commit); + } + } +} + +/* TODO: System and runtime suspend/resume sequences will be sanitized as a follow-up. */ +static void __xe_display_pm_suspend(struct xe_device *xe, bool runtime) +{ + struct intel_display *display = &xe->display; + bool s2idle = suspend_to_idle(); + if (!xe->info.probe_display) + return; + + /* + * We do a lot of poking in a lot of registers, make sure they work + * properly. + */ + intel_power_domains_disable(xe); + if (!runtime) + intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_SUSPENDED, true); + + if (!runtime && has_display(xe)) { + drm_kms_helper_poll_disable(&xe->drm); + intel_display_driver_disable_user_access(xe); + intel_display_driver_suspend(xe); + } + + xe_display_flush_cleanup_work(xe); + + intel_hpd_cancel_work(xe); + + if (!runtime && has_display(xe)) { + intel_display_driver_suspend_access(xe); + intel_encoder_suspend_all(&xe->display); + } + + intel_opregion_suspend(display, s2idle ? PCI_D1 : PCI_D3cold); + + intel_dmc_suspend(display); +} + +void xe_display_pm_suspend(struct xe_device *xe) +{ + __xe_display_pm_suspend(xe, false); +} + +void xe_display_pm_shutdown(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_display_driver_shutdown(xe); +} + +void xe_display_pm_shutdown_noirq(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_display_driver_shutdown_noirq(xe); +} + +void xe_display_pm_shutdown_noaccel(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_display_driver_shutdown_nogem(xe); +} + +void xe_display_pm_runtime_suspend(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + if (xe->d3cold.allowed) + __xe_display_pm_suspend(xe, true); + + intel_hpd_poll_enable(xe); +} + +void xe_display_pm_suspend_late(struct xe_device *xe) +{ + bool s2idle = suspend_to_idle(); + if (!xe->info.probe_display) + return; + + intel_power_domains_suspend(xe, s2idle); + + intel_display_power_suspend_late(xe); +} + +void xe_display_pm_resume_early(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_display_power_resume_early(xe); + + intel_power_domains_resume(xe); +} + +static void __xe_display_pm_resume(struct xe_device *xe, bool runtime) +{ + struct intel_display *display = &xe->display; + + if (!xe->info.probe_display) + return; + + intel_dmc_resume(display); + + if (has_display(xe)) + drm_mode_config_reset(&xe->drm); + + intel_display_driver_init_hw(xe); + + if (!runtime) + intel_display_driver_resume(xe); +} + +void xe_display_pm_resume(struct xe_device *xe) +{ + __xe_display_pm_resume(xe, false); +} + +void xe_display_pm_runtime_resume(struct xe_device *xe) +{ + if (!xe->info.probe_display) + return; + + intel_hpd_poll_disable(xe); + + if (xe->d3cold.allowed) + __xe_display_pm_resume(xe, true); +} + + +static void display_device_remove(struct drm_device *dev, void *arg) +{ + struct xe_device *xe = arg; + + intel_display_device_remove(xe); +} + +int xe_display_probe(struct xe_device *xe) +{ + int err; + + if (!xe->info.probe_display) + goto no_display; + + intel_display_device_probe(xe); + + err = drmm_add_action_or_reset(&xe->drm, display_device_remove, xe); + if (err) + return err; + + if (has_display(xe)) + return 0; + +no_display: + xe->info.probe_display = false; + unset_display_features(xe); + return 0; +} |