3 files changed, 523 insertions, 27 deletions

diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
new file mode 100644
index 0000000000..6ec375c1c4
--- /dev/null
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -0,0 +1,411 @@
+// 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/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_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.enable_display)
+		return 0;
+
+	return intel_display_driver_probe_defer(pdev);
+}
+
+static void xe_display_last_close(struct drm_device *dev)
+{
+	struct xe_device *xe = to_xe_device(dev);
+
+	if (xe->info.enable_display)
+		intel_fbdev_restore_mode(to_xe_device(dev));
+}
+
+/**
+ * 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.enable_display)
+		return;
+
+	driver->driver_features |= DRIVER_MODESET | DRIVER_ATOMIC;
+	driver->lastclose = xe_display_last_close;
+}
+
+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)
+{
+	int err;
+
+	spin_lock_init(&xe->display.fb_tracking.lock);
+
+	xe->display.hotplug.dp_wq = alloc_ordered_workqueue("xe-dp", 0);
+
+	drmm_mutex_init(&xe->drm, &xe->sb_lock);
+	xe->enabled_irq_mask = ~0;
+
+	err = drmm_add_action_or_reset(&xe->drm, display_destroy, NULL);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static void xe_display_fini_nommio(struct drm_device *dev, void *dummy)
+{
+	struct xe_device *xe = to_xe_device(dev);
+
+	if (!xe->info.enable_display)
+		return;
+
+	intel_power_domains_cleanup(xe);
+}
+
+int xe_display_init_nommio(struct xe_device *xe)
+{
+	if (!xe->info.enable_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(struct drm_device *dev, void *dummy)
+{
+	struct xe_device *xe = to_xe_device(dev);
+
+	if (!xe->info.enable_display)
+		return;
+
+	intel_display_driver_remove_noirq(xe);
+	intel_power_domains_driver_remove(xe);
+}
+
+int xe_display_init_noirq(struct xe_device *xe)
+{
+	int err;
+
+	if (!xe->info.enable_display)
+		return 0;
+
+	intel_display_driver_early_probe(xe);
+
+	/* Early display init.. */
+	intel_opregion_setup(xe);
+
+	/*
+	 * 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)
+		return err;
+
+	return drmm_add_action_or_reset(&xe->drm, xe_display_fini_noirq, NULL);
+}
+
+static void xe_display_fini_noaccel(struct drm_device *dev, void *dummy)
+{
+	struct xe_device *xe = to_xe_device(dev);
+
+	if (!xe->info.enable_display)
+		return;
+
+	intel_display_driver_remove_nogem(xe);
+}
+
+int xe_display_init_noaccel(struct xe_device *xe)
+{
+	int err;
+
+	if (!xe->info.enable_display)
+		return 0;
+
+	err = intel_display_driver_probe_nogem(xe);
+	if (err)
+		return err;
+
+	return drmm_add_action_or_reset(&xe->drm, xe_display_fini_noaccel, NULL);
+}
+
+int xe_display_init(struct xe_device *xe)
+{
+	if (!xe->info.enable_display)
+		return 0;
+
+	return intel_display_driver_probe(xe);
+}
+
+void xe_display_fini(struct xe_device *xe)
+{
+	if (!xe->info.enable_display)
+		return;
+
+	/* poll work can call into fbdev, hence clean that up afterwards */
+	intel_hpd_poll_fini(xe);
+	intel_fbdev_fini(xe);
+
+	intel_hdcp_component_fini(xe);
+	intel_audio_deinit(xe);
+}
+
+void xe_display_register(struct xe_device *xe)
+{
+	if (!xe->info.enable_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.enable_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.enable_display)
+		return;
+
+	intel_display_driver_remove(xe);
+
+	intel_display_device_remove(xe);
+}
+
+/* IRQ-related functions */
+
+void xe_display_irq_handler(struct xe_device *xe, u32 master_ctl)
+{
+	if (!xe->info.enable_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)
+{
+	if (!xe->info.enable_display)
+		return;
+
+	if (gu_misc_iir & GU_MISC_GSE)
+		intel_opregion_asle_intr(xe);
+}
+
+void xe_display_irq_reset(struct xe_device *xe)
+{
+	if (!xe->info.enable_display)
+		return;
+
+	gen11_display_irq_reset(xe);
+}
+
+void xe_display_irq_postinstall(struct xe_device *xe, struct xe_gt *gt)
+{
+	if (!xe->info.enable_display)
+		return;
+
+	if (gt->info.id == XE_GT0)
+		gen11_de_irq_postinstall(xe);
+}
+
+static void intel_suspend_encoders(struct xe_device *xe)
+{
+	struct drm_device *dev = &xe->drm;
+	struct intel_encoder *encoder;
+
+	if (has_display(xe))
+		return;
+
+	drm_modeset_lock_all(dev);
+	for_each_intel_encoder(dev, encoder)
+		if (encoder->suspend)
+			encoder->suspend(encoder);
+	drm_modeset_unlock_all(dev);
+}
+
+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;
+}
+
+void xe_display_pm_suspend(struct xe_device *xe)
+{
+	bool s2idle = suspend_to_idle();
+	if (!xe->info.enable_display)
+		return;
+
+	/*
+	 * We do a lot of poking in a lot of registers, make sure they work
+	 * properly.
+	 */
+	intel_power_domains_disable(xe);
+	if (has_display(xe))
+		drm_kms_helper_poll_disable(&xe->drm);
+
+	intel_display_driver_suspend(xe);
+
+	intel_dp_mst_suspend(xe);
+
+	intel_hpd_cancel_work(xe);
+
+	intel_suspend_encoders(xe);
+
+	intel_opregion_suspend(xe, s2idle ? PCI_D1 : PCI_D3cold);
+
+	intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_SUSPENDED, true);
+
+	intel_dmc_suspend(xe);
+}
+
+void xe_display_pm_suspend_late(struct xe_device *xe)
+{
+	bool s2idle = suspend_to_idle();
+	if (!xe->info.enable_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.enable_display)
+		return;
+
+	intel_display_power_resume_early(xe);
+
+	intel_power_domains_resume(xe);
+}
+
+void xe_display_pm_resume(struct xe_device *xe)
+{
+	if (!xe->info.enable_display)
+		return;
+
+	intel_dmc_resume(xe);
+
+	if (has_display(xe))
+		drm_mode_config_reset(&xe->drm);
+
+	intel_display_driver_init_hw(xe);
+	intel_hpd_init(xe);
+
+	/* MST sideband requires HPD interrupts enabled */
+	intel_dp_mst_resume(xe);
+	intel_display_driver_resume(xe);
+
+	intel_hpd_poll_disable(xe);
+	if (has_display(xe))
+		drm_kms_helper_poll_enable(&xe->drm);
+
+	intel_opregion_resume(xe);
+
+	intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_RUNNING, false);
+
+	intel_power_domains_enable(xe);
+}
+
+void xe_display_probe(struct xe_device *xe)
+{
+	if (!xe->info.enable_display)
+		goto no_display;
+
+	intel_display_device_probe(xe);
+
+	if (has_display(xe))
+		return;
+
+no_display:
+	xe->info.enable_display = false;
+	unset_display_features(xe);
+}
diff --git a/drivers/gpu/drm/xe/display/xe_display.h b/drivers/gpu/drm/xe/display/xe_display.h
new file mode 100644
index 0000000000..710e56180b
--- /dev/null
+++ b/drivers/gpu/drm/xe/display/xe_display.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef _XE_DISPLAY_H_
+#define _XE_DISPLAY_H_
+
+#include "xe_device.h"
+
+struct drm_driver;
+
+#if IS_ENABLED(CONFIG_DRM_XE_DISPLAY)
+
+bool xe_display_driver_probe_defer(struct pci_dev *pdev);
+void xe_display_driver_set_hooks(struct drm_driver *driver);
+void xe_display_driver_remove(struct xe_device *xe);
+
+int xe_display_create(struct xe_device *xe);
+
+void xe_display_probe(struct xe_device *xe);
+
+int xe_display_init_nommio(struct xe_device *xe);
+int xe_display_init_noirq(struct xe_device *xe);
+int xe_display_init_noaccel(struct xe_device *xe);
+int xe_display_init(struct xe_device *xe);
+void xe_display_fini(struct xe_device *xe);
+
+void xe_display_register(struct xe_device *xe);
+void xe_display_unregister(struct xe_device *xe);
+
+void xe_display_irq_handler(struct xe_device *xe, u32 master_ctl);
+void xe_display_irq_enable(struct xe_device *xe, u32 gu_misc_iir);
+void xe_display_irq_reset(struct xe_device *xe);
+void xe_display_irq_postinstall(struct xe_device *xe, struct xe_gt *gt);
+
+void xe_display_pm_suspend(struct xe_device *xe);
+void xe_display_pm_suspend_late(struct xe_device *xe);
+void xe_display_pm_resume_early(struct xe_device *xe);
+void xe_display_pm_resume(struct xe_device *xe);
+
+#else
+
+static inline int xe_display_driver_probe_defer(struct pci_dev *pdev) { return 0; }
+static inline void xe_display_driver_set_hooks(struct drm_driver *driver) { }
+static inline void xe_display_driver_remove(struct xe_device *xe) {}
+
+static inline int xe_display_create(struct xe_device *xe) { return 0; }
+
+static inline void xe_display_probe(struct xe_device *xe) { }
+
+static inline int xe_display_init_nommio(struct xe_device *xe) { return 0; }
+static inline int xe_display_init_noirq(struct xe_device *xe) { return 0; }
+static inline int xe_display_init_noaccel(struct xe_device *xe) { return 0; }
+static inline int xe_display_init(struct xe_device *xe) { return 0; }
+static inline void xe_display_fini(struct xe_device *xe) {}
+
+static inline void xe_display_register(struct xe_device *xe) {}
+static inline void xe_display_unregister(struct xe_device *xe) {}
+
+static inline void xe_display_irq_handler(struct xe_device *xe, u32 master_ctl) {}
+static inline void xe_display_irq_enable(struct xe_device *xe, u32 gu_misc_iir) {}
+static inline void xe_display_irq_reset(struct xe_device *xe) {}
+static inline void xe_display_irq_postinstall(struct xe_device *xe, struct xe_gt *gt) {}
+
+static inline void xe_display_pm_suspend(struct xe_device *xe) {}
+static inline void xe_display_pm_suspend_late(struct xe_device *xe) {}
+static inline void xe_display_pm_resume_early(struct xe_device *xe) {}
+static inline void xe_display_pm_resume(struct xe_device *xe) {}
+
+#endif /* CONFIG_DRM_XE_DISPLAY */
+#endif /* _XE_DISPLAY_H_ */
diff --git a/drivers/gpu/drm/xe/display/xe_plane_initial.c b/drivers/gpu/drm/xe/display/xe_plane_initial.c
index ccf83c12b5..866d1dd6ee 100644
--- a/drivers/gpu/drm/xe/display/xe_plane_initial.c
+++ b/drivers/gpu/drm/xe/display/xe_plane_initial.c
@@ -10,6 +10,7 @@
 
 #include "i915_drv.h"
 #include "intel_atomic_plane.h"
+#include "intel_crtc.h"
 #include "intel_display.h"
 #include "intel_display_types.h"
 #include "intel_fb.h"
@@ -18,19 +19,20 @@
 #include "intel_plane_initial.h"
 
 static bool
-intel_reuse_initial_plane_obj(struct drm_i915_private *i915,
-			      const struct intel_initial_plane_config *plane_config,
+intel_reuse_initial_plane_obj(struct intel_crtc *this,
+			      const struct intel_initial_plane_config plane_configs[],
 			      struct drm_framebuffer **fb)
 {
+	struct drm_i915_private *i915 = to_i915(this->base.dev);
 	struct intel_crtc *crtc;
 
 	for_each_intel_crtc(&i915->drm, crtc) {
-		struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
 		struct intel_plane *plane =
 			to_intel_plane(crtc->base.primary);
-		struct intel_plane_state *plane_state =
+		const struct intel_plane_state *plane_state =
 			to_intel_plane_state(plane->base.state);
+		const struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
 
 		if (!crtc_state->uapi.active)
 			continue;
@@ -38,7 +40,7 @@ intel_reuse_initial_plane_obj(struct drm_i915_private *i915,
 		if (!plane_state->ggtt_vma)
 			continue;
 
-		if (intel_plane_ggtt_offset(plane_state) == plane_config->base) {
+		if (plane_configs[this->pipe].base == plane_configs[crtc->pipe].base) {
 			*fb = plane_state->hw.fb;
 			return true;
 		}
@@ -178,10 +180,10 @@ err_bo:
 
 static void
 intel_find_initial_plane_obj(struct intel_crtc *crtc,
-			     struct intel_initial_plane_config *plane_config)
+			     struct intel_initial_plane_config plane_configs[])
 {
-	struct drm_device *dev = crtc->base.dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
+	struct intel_initial_plane_config *plane_config =
+		&plane_configs[crtc->pipe];
 	struct intel_plane *plane =
 		to_intel_plane(crtc->base.primary);
 	struct intel_plane_state *plane_state =
@@ -201,7 +203,7 @@ intel_find_initial_plane_obj(struct intel_crtc *crtc,
 
 	if (intel_alloc_initial_plane_obj(crtc, plane_config))
 		fb = &plane_config->fb->base;
-	else if (!intel_reuse_initial_plane_obj(dev_priv, plane_config, &fb))
+	else if (!intel_reuse_initial_plane_obj(crtc, plane_configs, &fb))
 		goto nofb;
 
 	plane_state->uapi.rotation = plane_config->rotation;
@@ -267,25 +269,36 @@ static void plane_config_fini(struct intel_initial_plane_config *plane_config)
 	}
 }
 
-void intel_crtc_initial_plane_config(struct intel_crtc *crtc)
+void intel_initial_plane_config(struct drm_i915_private *i915)
 {
-	struct xe_device *xe = to_xe_device(crtc->base.dev);
-	struct intel_initial_plane_config plane_config = {};
+	struct intel_initial_plane_config plane_configs[I915_MAX_PIPES] = {};
+	struct intel_crtc *crtc;
 
-	/*
-	 * Note that reserving the BIOS fb up front prevents us
-	 * from stuffing other stolen allocations like the ring
-	 * on top.  This prevents some ugliness at boot time, and
-	 * can even allow for smooth boot transitions if the BIOS
-	 * fb is large enough for the active pipe configuration.
-	 */
-	xe->display.funcs.display->get_initial_plane_config(crtc, &plane_config);
+	for_each_intel_crtc(&i915->drm, crtc) {
+		struct intel_initial_plane_config *plane_config =
+			&plane_configs[crtc->pipe];
 
-	/*
-	 * If the fb is shared between multiple heads, we'll
-	 * just get the first one.
-	 */
-	intel_find_initial_plane_obj(crtc, &plane_config);
+		if (!to_intel_crtc_state(crtc->base.state)->uapi.active)
+			continue;
 
-	plane_config_fini(&plane_config);
+		/*
+		 * Note that reserving the BIOS fb up front prevents us
+		 * from stuffing other stolen allocations like the ring
+		 * on top.  This prevents some ugliness at boot time, and
+		 * can even allow for smooth boot transitions if the BIOS
+		 * fb is large enough for the active pipe configuration.
+		 */
+		i915->display.funcs.display->get_initial_plane_config(crtc, plane_config);
+
+		/*
+		 * If the fb is shared between multiple heads, we'll
+		 * just get the first one.
+		 */
+		intel_find_initial_plane_obj(crtc, plane_configs);
+
+		if (i915->display.funcs.display->fixup_initial_plane_config(crtc, plane_config))
+			intel_crtc_wait_for_next_vblank(crtc);
+
+		plane_config_fini(plane_config);
+	}
 }