1 files changed, 374 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
index 882a2586aba4..f7805c6f1b63 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.c
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
@@ -9,17 +9,47 @@
 
 #include <linux/vga_switcheroo.h>
 #include <acpi/video.h>
+#include <drm/display/drm_dp_mst_helper.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_mode_config.h>
 #include <drm/drm_privacy_screen_consumer.h>
 #include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
 
 #include "i915_drv.h"
+#include "i9xx_wm.h"
 #include "intel_acpi.h"
+#include "intel_atomic.h"
 #include "intel_audio.h"
+#include "intel_bios.h"
+#include "intel_bw.h"
+#include "intel_cdclk.h"
+#include "intel_color.h"
+#include "intel_crtc.h"
 #include "intel_display_debugfs.h"
 #include "intel_display_driver.h"
+#include "intel_display_power.h"
+#include "intel_display_types.h"
+#include "intel_dmc.h"
+#include "intel_dp.h"
+#include "intel_dpll_mgr.h"
+#include "intel_fb.h"
+#include "intel_fbc.h"
 #include "intel_fbdev.h"
+#include "intel_fdi.h"
+#include "intel_gmbus.h"
+#include "intel_hdcp.h"
+#include "intel_hotplug.h"
+#include "intel_hti.h"
+#include "intel_modeset_setup.h"
 #include "intel_opregion.h"
+#include "intel_overlay.h"
+#include "intel_plane_initial.h"
+#include "intel_pps.h"
+#include "intel_quirks.h"
+#include "intel_vga.h"
+#include "intel_wm.h"
+#include "skl_watermark.h"
 
 bool intel_display_driver_probe_defer(struct pci_dev *pdev)
 {
@@ -42,6 +72,284 @@ bool intel_display_driver_probe_defer(struct pci_dev *pdev)
 	return false;
 }
 
+void intel_modeset_init_hw(struct drm_i915_private *i915)
+{
+	struct intel_cdclk_state *cdclk_state;
+
+	if (!HAS_DISPLAY(i915))
+		return;
+
+	cdclk_state = to_intel_cdclk_state(i915->display.cdclk.obj.state);
+
+	intel_update_cdclk(i915);
+	intel_cdclk_dump_config(i915, &i915->display.cdclk.hw, "Current CDCLK");
+	cdclk_state->logical = cdclk_state->actual = i915->display.cdclk.hw;
+}
+
+static const struct drm_mode_config_funcs intel_mode_funcs = {
+	.fb_create = intel_user_framebuffer_create,
+	.get_format_info = intel_fb_get_format_info,
+	.output_poll_changed = intel_fbdev_output_poll_changed,
+	.mode_valid = intel_mode_valid,
+	.atomic_check = intel_atomic_check,
+	.atomic_commit = intel_atomic_commit,
+	.atomic_state_alloc = intel_atomic_state_alloc,
+	.atomic_state_clear = intel_atomic_state_clear,
+	.atomic_state_free = intel_atomic_state_free,
+};
+
+static const struct drm_mode_config_helper_funcs intel_mode_config_funcs = {
+	.atomic_commit_setup = drm_dp_mst_atomic_setup_commit,
+};
+
+static void intel_mode_config_init(struct drm_i915_private *i915)
+{
+	struct drm_mode_config *mode_config = &i915->drm.mode_config;
+
+	drm_mode_config_init(&i915->drm);
+	INIT_LIST_HEAD(&i915->display.global.obj_list);
+
+	mode_config->min_width = 0;
+	mode_config->min_height = 0;
+
+	mode_config->preferred_depth = 24;
+	mode_config->prefer_shadow = 1;
+
+	mode_config->funcs = &intel_mode_funcs;
+	mode_config->helper_private = &intel_mode_config_funcs;
+
+	mode_config->async_page_flip = HAS_ASYNC_FLIPS(i915);
+
+	/*
+	 * Maximum framebuffer dimensions, chosen to match
+	 * the maximum render engine surface size on gen4+.
+	 */
+	if (DISPLAY_VER(i915) >= 7) {
+		mode_config->max_width = 16384;
+		mode_config->max_height = 16384;
+	} else if (DISPLAY_VER(i915) >= 4) {
+		mode_config->max_width = 8192;
+		mode_config->max_height = 8192;
+	} else if (DISPLAY_VER(i915) == 3) {
+		mode_config->max_width = 4096;
+		mode_config->max_height = 4096;
+	} else {
+		mode_config->max_width = 2048;
+		mode_config->max_height = 2048;
+	}
+
+	if (IS_I845G(i915) || IS_I865G(i915)) {
+		mode_config->cursor_width = IS_I845G(i915) ? 64 : 512;
+		mode_config->cursor_height = 1023;
+	} else if (IS_I830(i915) || IS_I85X(i915) ||
+		   IS_I915G(i915) || IS_I915GM(i915)) {
+		mode_config->cursor_width = 64;
+		mode_config->cursor_height = 64;
+	} else {
+		mode_config->cursor_width = 256;
+		mode_config->cursor_height = 256;
+	}
+}
+
+static void intel_mode_config_cleanup(struct drm_i915_private *i915)
+{
+	intel_atomic_global_obj_cleanup(i915);
+	drm_mode_config_cleanup(&i915->drm);
+}
+
+static void intel_plane_possible_crtcs_init(struct drm_i915_private *dev_priv)
+{
+	struct intel_plane *plane;
+
+	for_each_intel_plane(&dev_priv->drm, plane) {
+		struct intel_crtc *crtc = intel_crtc_for_pipe(dev_priv,
+							      plane->pipe);
+
+		plane->base.possible_crtcs = drm_crtc_mask(&crtc->base);
+	}
+}
+
+/* part #1: call before irq install */
+int intel_modeset_init_noirq(struct drm_i915_private *i915)
+{
+	int ret;
+
+	if (i915_inject_probe_failure(i915))
+		return -ENODEV;
+
+	if (HAS_DISPLAY(i915)) {
+		ret = drm_vblank_init(&i915->drm,
+				      INTEL_NUM_PIPES(i915));
+		if (ret)
+			return ret;
+	}
+
+	intel_bios_init(i915);
+
+	ret = intel_vga_register(i915);
+	if (ret)
+		goto cleanup_bios;
+
+	/* FIXME: completely on the wrong abstraction layer */
+	ret = intel_power_domains_init(i915);
+	if (ret < 0)
+		goto cleanup_vga;
+
+	intel_power_domains_init_hw(i915, false);
+
+	if (!HAS_DISPLAY(i915))
+		return 0;
+
+	intel_dmc_init(i915);
+
+	i915->display.wq.modeset = alloc_ordered_workqueue("i915_modeset", 0);
+	i915->display.wq.flip = alloc_workqueue("i915_flip", WQ_HIGHPRI |
+						WQ_UNBOUND, WQ_UNBOUND_MAX_ACTIVE);
+
+	intel_mode_config_init(i915);
+
+	ret = intel_cdclk_init(i915);
+	if (ret)
+		goto cleanup_vga_client_pw_domain_dmc;
+
+	ret = intel_color_init(i915);
+	if (ret)
+		goto cleanup_vga_client_pw_domain_dmc;
+
+	ret = intel_dbuf_init(i915);
+	if (ret)
+		goto cleanup_vga_client_pw_domain_dmc;
+
+	ret = intel_bw_init(i915);
+	if (ret)
+		goto cleanup_vga_client_pw_domain_dmc;
+
+	init_llist_head(&i915->display.atomic_helper.free_list);
+	INIT_WORK(&i915->display.atomic_helper.free_work,
+		  intel_atomic_helper_free_state_worker);
+
+	intel_init_quirks(i915);
+
+	intel_fbc_init(i915);
+
+	return 0;
+
+cleanup_vga_client_pw_domain_dmc:
+	intel_dmc_fini(i915);
+	intel_power_domains_driver_remove(i915);
+cleanup_vga:
+	intel_vga_unregister(i915);
+cleanup_bios:
+	intel_bios_driver_remove(i915);
+
+	return ret;
+}
+
+/* part #2: call after irq install, but before gem init */
+int intel_modeset_init_nogem(struct drm_i915_private *i915)
+{
+	struct drm_device *dev = &i915->drm;
+	enum pipe pipe;
+	struct intel_crtc *crtc;
+	int ret;
+
+	if (!HAS_DISPLAY(i915))
+		return 0;
+
+	intel_wm_init(i915);
+
+	intel_panel_sanitize_ssc(i915);
+
+	intel_pps_setup(i915);
+
+	intel_gmbus_setup(i915);
+
+	drm_dbg_kms(&i915->drm, "%d display pipe%s available.\n",
+		    INTEL_NUM_PIPES(i915),
+		    INTEL_NUM_PIPES(i915) > 1 ? "s" : "");
+
+	for_each_pipe(i915, pipe) {
+		ret = intel_crtc_init(i915, pipe);
+		if (ret) {
+			intel_mode_config_cleanup(i915);
+			return ret;
+		}
+	}
+
+	intel_plane_possible_crtcs_init(i915);
+	intel_shared_dpll_init(i915);
+	intel_fdi_pll_freq_update(i915);
+
+	intel_update_czclk(i915);
+	intel_modeset_init_hw(i915);
+	intel_dpll_update_ref_clks(i915);
+
+	intel_hdcp_component_init(i915);
+
+	if (i915->display.cdclk.max_cdclk_freq == 0)
+		intel_update_max_cdclk(i915);
+
+	intel_hti_init(i915);
+
+	/* Just disable it once at startup */
+	intel_vga_disable(i915);
+	intel_setup_outputs(i915);
+
+	drm_modeset_lock_all(dev);
+	intel_modeset_setup_hw_state(i915, dev->mode_config.acquire_ctx);
+	intel_acpi_assign_connector_fwnodes(i915);
+	drm_modeset_unlock_all(dev);
+
+	for_each_intel_crtc(dev, crtc) {
+		if (!to_intel_crtc_state(crtc->base.state)->uapi.active)
+			continue;
+		intel_crtc_initial_plane_config(crtc);
+	}
+
+	/*
+	 * Make sure hardware watermarks really match the state we read out.
+	 * Note that we need to do this after reconstructing the BIOS fb's
+	 * since the watermark calculation done here will use pstate->fb.
+	 */
+	if (!HAS_GMCH(i915))
+		ilk_wm_sanitize(i915);
+
+	return 0;
+}
+
+/* part #3: call after gem init */
+int intel_modeset_init(struct drm_i915_private *i915)
+{
+	int ret;
+
+	if (!HAS_DISPLAY(i915))
+		return 0;
+
+	/*
+	 * Force all active planes to recompute their states. So that on
+	 * mode_setcrtc after probe, all the intel_plane_state variables
+	 * are already calculated and there is no assert_plane warnings
+	 * during bootup.
+	 */
+	ret = intel_initial_commit(&i915->drm);
+	if (ret)
+		drm_dbg_kms(&i915->drm, "Initial modeset failed, %d\n", ret);
+
+	intel_overlay_setup(i915);
+
+	ret = intel_fbdev_init(&i915->drm);
+	if (ret)
+		return ret;
+
+	/* Only enable hotplug handling once the fbdev is fully set up. */
+	intel_hpd_init(i915);
+	intel_hpd_poll_disable(i915);
+
+	skl_watermark_ipc_init(i915);
+
+	return 0;
+}
+
 void intel_display_driver_register(struct drm_i915_private *i915)
 {
 	if (!HAS_DISPLAY(i915))
@@ -73,6 +381,72 @@ void intel_display_driver_register(struct drm_i915_private *i915)
 	drm_kms_helper_poll_init(&i915->drm);
 }
 
+/* part #1: call before irq uninstall */
+void intel_modeset_driver_remove(struct drm_i915_private *i915)
+{
+	if (!HAS_DISPLAY(i915))
+		return;
+
+	flush_workqueue(i915->display.wq.flip);
+	flush_workqueue(i915->display.wq.modeset);
+
+	flush_work(&i915->display.atomic_helper.free_work);
+	drm_WARN_ON(&i915->drm, !llist_empty(&i915->display.atomic_helper.free_list));
+
+	/*
+	 * MST topology needs to be suspended so we don't have any calls to
+	 * fbdev after it's finalized. MST will be destroyed later as part of
+	 * drm_mode_config_cleanup()
+	 */
+	intel_dp_mst_suspend(i915);
+}
+
+/* part #2: call after irq uninstall */
+void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915)
+{
+	if (!HAS_DISPLAY(i915))
+		return;
+
+	/*
+	 * Due to the hpd irq storm handling the hotplug work can re-arm the
+	 * poll handlers. Hence disable polling after hpd handling is shut down.
+	 */
+	intel_hpd_poll_fini(i915);
+
+	/* poll work can call into fbdev, hence clean that up afterwards */
+	intel_fbdev_fini(i915);
+
+	intel_unregister_dsm_handler();
+
+	/* flush any delayed tasks or pending work */
+	flush_scheduled_work();
+
+	intel_hdcp_component_fini(i915);
+
+	intel_mode_config_cleanup(i915);
+
+	intel_overlay_cleanup(i915);
+
+	intel_gmbus_teardown(i915);
+
+	destroy_workqueue(i915->display.wq.flip);
+	destroy_workqueue(i915->display.wq.modeset);
+
+	intel_fbc_cleanup(i915);
+}
+
+/* part #3: call after gem init */
+void intel_modeset_driver_remove_nogem(struct drm_i915_private *i915)
+{
+	intel_dmc_fini(i915);
+
+	intel_power_domains_driver_remove(i915);
+
+	intel_vga_unregister(i915);
+
+	intel_bios_driver_remove(i915);
+}
+
 void intel_display_driver_unregister(struct drm_i915_private *i915)
 {
 	if (!HAS_DISPLAY(i915))