// SPDX-License-Identifier: MIT /* * Copyright © 2020 Intel Corporation */ #include #include #include #include #include "hsw_ips.h" #include "i915_debugfs.h" #include "i915_irq.h" #include "i915_reg.h" #include "intel_alpm.h" #include "intel_crtc.h" #include "intel_de.h" #include "intel_crtc_state_dump.h" #include "intel_display_debugfs.h" #include "intel_display_debugfs_params.h" #include "intel_display_power.h" #include "intel_display_power_well.h" #include "intel_display_types.h" #include "intel_dmc.h" #include "intel_dp.h" #include "intel_dp_link_training.h" #include "intel_dp_mst.h" #include "intel_drrs.h" #include "intel_fbc.h" #include "intel_fbdev.h" #include "intel_hdcp.h" #include "intel_hdmi.h" #include "intel_hotplug.h" #include "intel_panel.h" #include "intel_pps.h" #include "intel_psr.h" #include "intel_psr_regs.h" #include "intel_vdsc.h" #include "intel_wm.h" static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node) { return to_i915(node->minor->dev); } static int i915_frontbuffer_tracking(struct seq_file *m, void *unused) { struct drm_i915_private *dev_priv = node_to_i915(m->private); spin_lock(&dev_priv->display.fb_tracking.lock); seq_printf(m, "FB tracking busy bits: 0x%08x\n", dev_priv->display.fb_tracking.busy_bits); seq_printf(m, "FB tracking flip bits: 0x%08x\n", dev_priv->display.fb_tracking.flip_bits); spin_unlock(&dev_priv->display.fb_tracking.lock); return 0; } static int i915_sr_status(struct seq_file *m, void *unused) { struct drm_i915_private *dev_priv = node_to_i915(m->private); intel_wakeref_t wakeref; bool sr_enabled = false; wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); if (DISPLAY_VER(dev_priv) >= 9) /* no global SR status; inspect per-plane WM */; else if (HAS_PCH_SPLIT(dev_priv)) sr_enabled = intel_de_read(dev_priv, WM1_LP_ILK) & WM_LP_ENABLE; else if (IS_I965GM(dev_priv) || IS_G4X(dev_priv) || IS_I945G(dev_priv) || IS_I945GM(dev_priv)) sr_enabled = intel_de_read(dev_priv, FW_BLC_SELF) & FW_BLC_SELF_EN; else if (IS_I915GM(dev_priv)) sr_enabled = intel_de_read(dev_priv, INSTPM) & INSTPM_SELF_EN; else if (IS_PINEVIEW(dev_priv)) sr_enabled = intel_de_read(dev_priv, DSPFW3(dev_priv)) & PINEVIEW_SELF_REFRESH_EN; else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) sr_enabled = intel_de_read(dev_priv, FW_BLC_SELF_VLV) & FW_CSPWRDWNEN; intel_display_power_put(dev_priv, POWER_DOMAIN_INIT, wakeref); seq_printf(m, "self-refresh: %s\n", str_enabled_disabled(sr_enabled)); return 0; } static int i915_gem_framebuffer_info(struct seq_file *m, void *data) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct intel_framebuffer *fbdev_fb = NULL; struct drm_framebuffer *drm_fb; #ifdef CONFIG_DRM_FBDEV_EMULATION fbdev_fb = intel_fbdev_framebuffer(dev_priv->display.fbdev.fbdev); if (fbdev_fb) { seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ", fbdev_fb->base.width, fbdev_fb->base.height, fbdev_fb->base.format->depth, fbdev_fb->base.format->cpp[0] * 8, fbdev_fb->base.modifier, drm_framebuffer_read_refcount(&fbdev_fb->base)); i915_debugfs_describe_obj(m, intel_fb_obj(&fbdev_fb->base)); seq_putc(m, '\n'); } #endif mutex_lock(&dev_priv->drm.mode_config.fb_lock); drm_for_each_fb(drm_fb, &dev_priv->drm) { struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb); if (fb == fbdev_fb) continue; seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ", fb->base.width, fb->base.height, fb->base.format->depth, fb->base.format->cpp[0] * 8, fb->base.modifier, drm_framebuffer_read_refcount(&fb->base)); i915_debugfs_describe_obj(m, intel_fb_obj(&fb->base)); seq_putc(m, '\n'); } mutex_unlock(&dev_priv->drm.mode_config.fb_lock); return 0; } static int i915_power_domain_info(struct seq_file *m, void *unused) { struct drm_i915_private *i915 = node_to_i915(m->private); intel_display_power_debug(i915, m); return 0; } static void intel_seq_print_mode(struct seq_file *m, int tabs, const struct drm_display_mode *mode) { int i; for (i = 0; i < tabs; i++) seq_putc(m, '\t'); seq_printf(m, DRM_MODE_FMT "\n", DRM_MODE_ARG(mode)); } static void intel_encoder_info(struct seq_file *m, struct intel_crtc *crtc, struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct drm_connector_list_iter conn_iter; struct drm_connector *connector; seq_printf(m, "\t[ENCODER:%d:%s]: connectors:\n", encoder->base.base.id, encoder->base.name); drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) { const struct drm_connector_state *conn_state = connector->state; if (conn_state->best_encoder != &encoder->base) continue; seq_printf(m, "\t\t[CONNECTOR:%d:%s]\n", connector->base.id, connector->name); } drm_connector_list_iter_end(&conn_iter); } static void intel_panel_info(struct seq_file *m, struct intel_connector *connector) { const struct drm_display_mode *fixed_mode; if (list_empty(&connector->panel.fixed_modes)) return; seq_puts(m, "\tfixed modes:\n"); list_for_each_entry(fixed_mode, &connector->panel.fixed_modes, head) intel_seq_print_mode(m, 2, fixed_mode); } static void intel_hdcp_info(struct seq_file *m, struct intel_connector *intel_connector, bool remote_req) { bool hdcp_cap = false, hdcp2_cap = false; if (!intel_connector->hdcp.shim) { seq_puts(m, "No Connector Support"); goto out; } if (remote_req) { intel_hdcp_get_remote_capability(intel_connector, &hdcp_cap, &hdcp2_cap); } else { hdcp_cap = intel_hdcp_get_capability(intel_connector); hdcp2_cap = intel_hdcp2_get_capability(intel_connector); } if (hdcp_cap) seq_puts(m, "HDCP1.4 "); if (hdcp2_cap) seq_puts(m, "HDCP2.2 "); if (!hdcp_cap && !hdcp2_cap) seq_puts(m, "None"); out: seq_puts(m, "\n"); } static void intel_dp_info(struct seq_file *m, struct intel_connector *connector) { struct intel_encoder *intel_encoder = intel_attached_encoder(connector); struct intel_dp *intel_dp = enc_to_intel_dp(intel_encoder); seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]); seq_printf(m, "\taudio support: %s\n", str_yes_no(connector->base.display_info.has_audio)); drm_dp_downstream_debug(m, intel_dp->dpcd, intel_dp->downstream_ports, connector->detect_edid, &intel_dp->aux); } static void intel_dp_mst_info(struct seq_file *m, struct intel_connector *connector) { bool has_audio = connector->base.display_info.has_audio; seq_printf(m, "\taudio support: %s\n", str_yes_no(has_audio)); } static void intel_hdmi_info(struct seq_file *m, struct intel_connector *connector) { bool has_audio = connector->base.display_info.has_audio; seq_printf(m, "\taudio support: %s\n", str_yes_no(has_audio)); } static void intel_connector_info(struct seq_file *m, struct drm_connector *connector) { struct intel_connector *intel_connector = to_intel_connector(connector); const struct drm_display_mode *mode; seq_printf(m, "[CONNECTOR:%d:%s]: status: %s\n", connector->base.id, connector->name, drm_get_connector_status_name(connector->status)); if (connector->status == connector_status_disconnected) return; seq_printf(m, "\tphysical dimensions: %dx%dmm\n", connector->display_info.width_mm, connector->display_info.height_mm); seq_printf(m, "\tsubpixel order: %s\n", drm_get_subpixel_order_name(connector->display_info.subpixel_order)); seq_printf(m, "\tCEA rev: %d\n", connector->display_info.cea_rev); switch (connector->connector_type) { case DRM_MODE_CONNECTOR_DisplayPort: case DRM_MODE_CONNECTOR_eDP: if (intel_connector->mst_port) intel_dp_mst_info(m, intel_connector); else intel_dp_info(m, intel_connector); break; case DRM_MODE_CONNECTOR_HDMIA: intel_hdmi_info(m, intel_connector); break; default: break; } seq_puts(m, "\tHDCP version: "); if (intel_connector->mst_port) { intel_hdcp_info(m, intel_connector, true); seq_puts(m, "\tMST Hub HDCP version: "); } intel_hdcp_info(m, intel_connector, false); seq_printf(m, "\tmax bpc: %u\n", connector->display_info.bpc); intel_panel_info(m, intel_connector); seq_printf(m, "\tmodes:\n"); list_for_each_entry(mode, &connector->modes, head) intel_seq_print_mode(m, 2, mode); } static const char *plane_type(enum drm_plane_type type) { switch (type) { case DRM_PLANE_TYPE_OVERLAY: return "OVL"; case DRM_PLANE_TYPE_PRIMARY: return "PRI"; case DRM_PLANE_TYPE_CURSOR: return "CUR"; /* * Deliberately omitting default: to generate compiler warnings * when a new drm_plane_type gets added. */ } return "unknown"; } static void plane_rotation(char *buf, size_t bufsize, unsigned int rotation) { /* * According to doc only one DRM_MODE_ROTATE_ is allowed but this * will print them all to visualize if the values are misused */ snprintf(buf, bufsize, "%s%s%s%s%s%s(0x%08x)", (rotation & DRM_MODE_ROTATE_0) ? "0 " : "", (rotation & DRM_MODE_ROTATE_90) ? "90 " : "", (rotation & DRM_MODE_ROTATE_180) ? "180 " : "", (rotation & DRM_MODE_ROTATE_270) ? "270 " : "", (rotation & DRM_MODE_REFLECT_X) ? "FLIPX " : "", (rotation & DRM_MODE_REFLECT_Y) ? "FLIPY " : "", rotation); } static const char *plane_visibility(const struct intel_plane_state *plane_state) { if (plane_state->uapi.visible) return "visible"; if (plane_state->planar_slave) return "planar-slave"; return "hidden"; } static void intel_plane_uapi_info(struct seq_file *m, struct intel_plane *plane) { const struct intel_plane_state *plane_state = to_intel_plane_state(plane->base.state); const struct drm_framebuffer *fb = plane_state->uapi.fb; struct drm_rect src, dst; char rot_str[48]; src = drm_plane_state_src(&plane_state->uapi); dst = drm_plane_state_dest(&plane_state->uapi); plane_rotation(rot_str, sizeof(rot_str), plane_state->uapi.rotation); seq_puts(m, "\t\tuapi: [FB:"); if (fb) seq_printf(m, "%d] %p4cc,0x%llx,%dx%d", fb->base.id, &fb->format->format, fb->modifier, fb->width, fb->height); else seq_puts(m, "0] n/a,0x0,0x0,"); seq_printf(m, ", visible=%s, src=" DRM_RECT_FP_FMT ", dst=" DRM_RECT_FMT ", rotation=%s\n", plane_visibility(plane_state), DRM_RECT_FP_ARG(&src), DRM_RECT_ARG(&dst), rot_str); if (plane_state->planar_linked_plane) seq_printf(m, "\t\tplanar: Linked to [PLANE:%d:%s] as a %s\n", plane_state->planar_linked_plane->base.base.id, plane_state->planar_linked_plane->base.name, plane_state->planar_slave ? "slave" : "master"); } static void intel_plane_hw_info(struct seq_file *m, struct intel_plane *plane) { const struct intel_plane_state *plane_state = to_intel_plane_state(plane->base.state); const struct drm_framebuffer *fb = plane_state->hw.fb; char rot_str[48]; if (!fb) return; plane_rotation(rot_str, sizeof(rot_str), plane_state->hw.rotation); seq_printf(m, "\t\thw: [FB:%d] %p4cc,0x%llx,%dx%d, visible=%s, src=" DRM_RECT_FP_FMT ", dst=" DRM_RECT_FMT ", rotation=%s\n", fb->base.id, &fb->format->format, fb->modifier, fb->width, fb->height, str_yes_no(plane_state->uapi.visible), DRM_RECT_FP_ARG(&plane_state->uapi.src), DRM_RECT_ARG(&plane_state->uapi.dst), rot_str); } static void intel_plane_info(struct seq_file *m, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct intel_plane *plane; for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) { seq_printf(m, "\t[PLANE:%d:%s]: type=%s\n", plane->base.base.id, plane->base.name, plane_type(plane->base.type)); intel_plane_uapi_info(m, plane); intel_plane_hw_info(m, plane); } } static void intel_scaler_info(struct seq_file *m, struct intel_crtc *crtc) { const struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); int num_scalers = crtc->num_scalers; int i; /* Not all platformas have a scaler */ if (num_scalers) { seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d scaling_filter=%d", num_scalers, crtc_state->scaler_state.scaler_users, crtc_state->scaler_state.scaler_id, crtc_state->hw.scaling_filter); for (i = 0; i < num_scalers; i++) { const struct intel_scaler *sc = &crtc_state->scaler_state.scalers[i]; seq_printf(m, ", scalers[%d]: use=%s, mode=%x", i, str_yes_no(sc->in_use), sc->mode); } seq_puts(m, "\n"); } else { seq_puts(m, "\tNo scalers available on this platform\n"); } } #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_VBLANK_EVADE) static void crtc_updates_info(struct seq_file *m, struct intel_crtc *crtc, const char *hdr) { u64 count; int row; count = 0; for (row = 0; row < ARRAY_SIZE(crtc->debug.vbl.times); row++) count += crtc->debug.vbl.times[row]; seq_printf(m, "%sUpdates: %llu\n", hdr, count); if (!count) return; for (row = 0; row < ARRAY_SIZE(crtc->debug.vbl.times); row++) { char columns[80] = " |"; unsigned int x; if (row & 1) { const char *units; if (row > 10) { x = 1000000; units = "ms"; } else { x = 1000; units = "us"; } snprintf(columns, sizeof(columns), "%4ld%s |", DIV_ROUND_CLOSEST(BIT(row + 9), x), units); } if (crtc->debug.vbl.times[row]) { x = ilog2(crtc->debug.vbl.times[row]); memset(columns + 8, '*', x); columns[8 + x] = '\0'; } seq_printf(m, "%s%s\n", hdr, columns); } seq_printf(m, "%sMin update: %lluns\n", hdr, crtc->debug.vbl.min); seq_printf(m, "%sMax update: %lluns\n", hdr, crtc->debug.vbl.max); seq_printf(m, "%sAverage update: %lluns\n", hdr, div64_u64(crtc->debug.vbl.sum, count)); seq_printf(m, "%sOverruns > %uus: %u\n", hdr, VBLANK_EVASION_TIME_US, crtc->debug.vbl.over); } static int crtc_updates_show(struct seq_file *m, void *data) { crtc_updates_info(m, m->private, ""); return 0; } static int crtc_updates_open(struct inode *inode, struct file *file) { return single_open(file, crtc_updates_show, inode->i_private); } static ssize_t crtc_updates_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { struct seq_file *m = file->private_data; struct intel_crtc *crtc = m->private; /* May race with an update. Meh. */ memset(&crtc->debug.vbl, 0, sizeof(crtc->debug.vbl)); return len; } static const struct file_operations crtc_updates_fops = { .owner = THIS_MODULE, .open = crtc_updates_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = crtc_updates_write }; static void crtc_updates_add(struct intel_crtc *crtc) { debugfs_create_file("i915_update_info", 0644, crtc->base.debugfs_entry, crtc, &crtc_updates_fops); } #else static void crtc_updates_info(struct seq_file *m, struct intel_crtc *crtc, const char *hdr) { } static void crtc_updates_add(struct intel_crtc *crtc) { } #endif static void intel_crtc_info(struct seq_file *m, struct intel_crtc *crtc) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct drm_printer p = drm_seq_file_printer(m); const struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); struct intel_encoder *encoder; seq_printf(m, "[CRTC:%d:%s]:\n", crtc->base.base.id, crtc->base.name); seq_printf(m, "\tuapi: enable=%s, active=%s, mode=" DRM_MODE_FMT "\n", str_yes_no(crtc_state->uapi.enable), str_yes_no(crtc_state->uapi.active), DRM_MODE_ARG(&crtc_state->uapi.mode)); seq_printf(m, "\thw: enable=%s, active=%s\n", str_yes_no(crtc_state->hw.enable), str_yes_no(crtc_state->hw.active)); seq_printf(m, "\tadjusted_mode=" DRM_MODE_FMT "\n", DRM_MODE_ARG(&crtc_state->hw.adjusted_mode)); seq_printf(m, "\tpipe__mode=" DRM_MODE_FMT "\n", DRM_MODE_ARG(&crtc_state->hw.pipe_mode)); seq_printf(m, "\tpipe src=" DRM_RECT_FMT ", dither=%s, bpp=%d\n", DRM_RECT_ARG(&crtc_state->pipe_src), str_yes_no(crtc_state->dither), crtc_state->pipe_bpp); intel_scaler_info(m, crtc); if (crtc_state->joiner_pipes) seq_printf(m, "\tLinked to 0x%x pipes as a %s\n", crtc_state->joiner_pipes, intel_crtc_is_joiner_secondary(crtc_state) ? "slave" : "master"); intel_vdsc_state_dump(&p, 1, crtc_state); for_each_intel_encoder_mask(&dev_priv->drm, encoder, crtc_state->uapi.encoder_mask) intel_encoder_info(m, crtc, encoder); intel_plane_info(m, crtc); seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s\n", str_yes_no(!crtc->cpu_fifo_underrun_disabled), str_yes_no(!crtc->pch_fifo_underrun_disabled)); crtc_updates_info(m, crtc, "\t"); } static int i915_display_info(struct seq_file *m, void *unused) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct intel_crtc *crtc; struct drm_connector *connector; struct drm_connector_list_iter conn_iter; intel_wakeref_t wakeref; wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm); drm_modeset_lock_all(&dev_priv->drm); seq_printf(m, "CRTC info\n"); seq_printf(m, "---------\n"); for_each_intel_crtc(&dev_priv->drm, crtc) intel_crtc_info(m, crtc); seq_printf(m, "\n"); seq_printf(m, "Connector info\n"); seq_printf(m, "--------------\n"); drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) intel_connector_info(m, connector); drm_connector_list_iter_end(&conn_iter); drm_modeset_unlock_all(&dev_priv->drm); intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref); return 0; } static int i915_display_capabilities(struct seq_file *m, void *unused) { struct drm_i915_private *i915 = node_to_i915(m->private); struct drm_printer p = drm_seq_file_printer(m); intel_display_device_info_print(DISPLAY_INFO(i915), DISPLAY_RUNTIME_INFO(i915), &p); return 0; } static int i915_shared_dplls_info(struct seq_file *m, void *unused) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct drm_printer p = drm_seq_file_printer(m); struct intel_shared_dpll *pll; int i; drm_modeset_lock_all(&dev_priv->drm); drm_printf(&p, "PLL refclks: non-SSC: %d kHz, SSC: %d kHz\n", dev_priv->display.dpll.ref_clks.nssc, dev_priv->display.dpll.ref_clks.ssc); for_each_shared_dpll(dev_priv, pll, i) { drm_printf(&p, "DPLL%i: %s, id: %i\n", pll->index, pll->info->name, pll->info->id); drm_printf(&p, " pipe_mask: 0x%x, active: 0x%x, on: %s\n", pll->state.pipe_mask, pll->active_mask, str_yes_no(pll->on)); drm_printf(&p, " tracked hardware state:\n"); intel_dpll_dump_hw_state(dev_priv, &p, &pll->state.hw_state); } drm_modeset_unlock_all(&dev_priv->drm); return 0; } static int i915_ddb_info(struct seq_file *m, void *unused) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct skl_ddb_entry *entry; struct intel_crtc *crtc; if (DISPLAY_VER(dev_priv) < 9) return -ENODEV; drm_modeset_lock_all(&dev_priv->drm); seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size"); for_each_intel_crtc(&dev_priv->drm, crtc) { struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state); enum pipe pipe = crtc->pipe; enum plane_id plane_id; seq_printf(m, "Pipe %c\n", pipe_name(pipe)); for_each_plane_id_on_crtc(crtc, plane_id) { entry = &crtc_state->wm.skl.plane_ddb[plane_id]; seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane_id + 1, entry->start, entry->end, skl_ddb_entry_size(entry)); } entry = &crtc_state->wm.skl.plane_ddb[PLANE_CURSOR]; seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start, entry->end, skl_ddb_entry_size(entry)); } drm_modeset_unlock_all(&dev_priv->drm); return 0; } static bool intel_lpsp_power_well_enabled(struct drm_i915_private *i915, enum i915_power_well_id power_well_id) { intel_wakeref_t wakeref; bool is_enabled; wakeref = intel_runtime_pm_get(&i915->runtime_pm); is_enabled = intel_display_power_well_is_enabled(i915, power_well_id); intel_runtime_pm_put(&i915->runtime_pm, wakeref); return is_enabled; } static int i915_lpsp_status(struct seq_file *m, void *unused) { struct drm_i915_private *i915 = node_to_i915(m->private); bool lpsp_enabled = false; if (DISPLAY_VER(i915) >= 13 || IS_DISPLAY_VER(i915, 9, 10)) { lpsp_enabled = !intel_lpsp_power_well_enabled(i915, SKL_DISP_PW_2); } else if (IS_DISPLAY_VER(i915, 11, 12)) { lpsp_enabled = !intel_lpsp_power_well_enabled(i915, ICL_DISP_PW_3); } else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) { lpsp_enabled = !intel_lpsp_power_well_enabled(i915, HSW_DISP_PW_GLOBAL); } else { seq_puts(m, "LPSP: not supported\n"); return 0; } seq_printf(m, "LPSP: %s\n", str_enabled_disabled(lpsp_enabled)); return 0; } static int i915_dp_mst_info(struct seq_file *m, void *unused) { struct drm_i915_private *dev_priv = node_to_i915(m->private); struct intel_encoder *intel_encoder; struct intel_digital_port *dig_port; struct drm_connector *connector; struct drm_connector_list_iter conn_iter; drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) { if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) continue; intel_encoder = intel_attached_encoder(to_intel_connector(connector)); if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST) continue; dig_port = enc_to_dig_port(intel_encoder); if (!intel_dp_mst_source_support(&dig_port->dp)) continue; seq_printf(m, "MST Source Port [ENCODER:%d:%s]\n", dig_port->base.base.base.id, dig_port->base.base.name); drm_dp_mst_dump_topology(m, &dig_port->dp.mst_mgr); } drm_connector_list_iter_end(&conn_iter); return 0; } static ssize_t i915_displayport_test_active_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { char *input_buffer; int status = 0; struct drm_device *dev; struct drm_connector *connector; struct drm_connector_list_iter conn_iter; struct intel_dp *intel_dp; int val = 0; dev = ((struct seq_file *)file->private_data)->private; if (len == 0) return 0; input_buffer = memdup_user_nul(ubuf, len); if (IS_ERR(input_buffer)) return PTR_ERR(input_buffer); drm_dbg(dev, "Copied %d bytes from user\n", (unsigned int)len); drm_connector_list_iter_begin(dev, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) { struct intel_encoder *encoder; if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) continue; encoder = to_intel_encoder(connector->encoder); if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) continue; if (encoder && connector->status == connector_status_connected) { intel_dp = enc_to_intel_dp(encoder); status = kstrtoint(input_buffer, 10, &val); if (status < 0) break; drm_dbg(dev, "Got %d for test active\n", val); /* To prevent erroneous activation of the compliance * testing code, only accept an actual value of 1 here */ if (val == 1) intel_dp->compliance.test_active = true; else intel_dp->compliance.test_active = false; } } drm_connector_list_iter_end(&conn_iter); kfree(input_buffer); if (status < 0) return status; *offp += len; return len; } static int i915_displayport_test_active_show(struct seq_file *m, void *data) { struct drm_i915_private *dev_priv = m->private; struct drm_connector *connector; struct drm_connector_list_iter conn_iter; struct intel_dp *intel_dp; drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) { struct intel_encoder *encoder; if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) continue; encoder = to_intel_encoder(connector->encoder); if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) continue; if (encoder && connector->status == connector_status_connected) { intel_dp = enc_to_intel_dp(encoder); if (intel_dp->compliance.test_active) seq_puts(m, "1"); else seq_puts(m, "0"); } else seq_puts(m, "0"); } drm_connector_list_iter_end(&conn_iter); return 0; } static int i915_displayport_test_active_open(struct inode *inode, struct file *file) { return single_open(file, i915_displayport_test_active_show, inode->i_private); } static const struct file_operations i915_displayport_test_active_fops = { .owner = THIS_MODULE, .open = i915_displayport_test_active_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = i915_displayport_test_active_write }; static int i915_displayport_test_data_show(struct seq_file *m, void *data) { struct drm_i915_private *dev_priv = m->private; struct drm_connector *connector; struct drm_connector_list_iter conn_iter; struct intel_dp *intel_dp; drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) { struct intel_encoder *encoder; if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) continue; encoder = to_intel_encoder(connector->encoder); if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) continue; if (encoder && connector->status == connector_status_connected) { intel_dp = enc_to_intel_dp(encoder); if (intel_dp->compliance.test_type == DP_TEST_LINK_EDID_READ) seq_printf(m, "%lx", intel_dp->compliance.test_data.edid); else if (intel_dp->compliance.test_type == DP_TEST_LINK_VIDEO_PATTERN) { seq_printf(m, "hdisplay: %d\n", intel_dp->compliance.test_data.hdisplay); seq_printf(m, "vdisplay: %d\n", intel_dp->compliance.test_data.vdisplay); seq_printf(m, "bpc: %u\n", intel_dp->compliance.test_data.bpc); } else if (intel_dp->compliance.test_type == DP_TEST_LINK_PHY_TEST_PATTERN) { seq_printf(m, "pattern: %d\n", intel_dp->compliance.test_data.phytest.phy_pattern); seq_printf(m, "Number of lanes: %d\n", intel_dp->compliance.test_data.phytest.num_lanes); seq_printf(m, "Link Rate: %d\n", intel_dp->compliance.test_data.phytest.link_rate); seq_printf(m, "level: %02x\n", intel_dp->train_set[0]); } } else seq_puts(m, "0"); } drm_connector_list_iter_end(&conn_iter); return 0; } DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_data); static int i915_displayport_test_type_show(struct seq_file *m, void *data) { struct drm_i915_private *dev_priv = m->private; struct drm_connector *connector; struct drm_connector_list_iter conn_iter; struct intel_dp *intel_dp; drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) { struct intel_encoder *encoder; if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) continue; encoder = to_intel_encoder(connector->encoder); if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) continue; if (encoder && connector->status == connector_status_connected) { intel_dp = enc_to_intel_dp(encoder); seq_printf(m, "%02lx\n", intel_dp->compliance.test_type); } else seq_puts(m, "0"); } drm_connector_list_iter_end(&conn_iter); return 0; } DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_type); static ssize_t i915_fifo_underrun_reset_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) { struct drm_i915_private *dev_priv = filp->private_data; struct intel_crtc *crtc; int ret; bool reset; ret = kstrtobool_from_user(ubuf, cnt, &reset); if (ret) return ret; if (!reset) return cnt; for_each_intel_crtc(&dev_priv->drm, crtc) { struct drm_crtc_commit *commit; struct intel_crtc_state *crtc_state; ret = drm_modeset_lock_single_interruptible(&crtc->base.mutex); if (ret) return ret; crtc_state = to_intel_crtc_state(crtc->base.state); commit = crtc_state->uapi.commit; if (commit) { ret = wait_for_completion_interruptible(&commit->hw_done); if (!ret) ret = wait_for_completion_interruptible(&commit->flip_done); } if (!ret && crtc_state->hw.active) { drm_dbg_kms(&dev_priv->drm, "Re-arming FIFO underruns on pipe %c\n", pipe_name(crtc->pipe)); intel_crtc_arm_fifo_underrun(crtc, crtc_state); } drm_modeset_unlock(&crtc->base.mutex); if (ret) return ret; } intel_fbc_reset_underrun(&dev_priv->display); return cnt; } static const struct file_operations i915_fifo_underrun_reset_ops = { .owner = THIS_MODULE, .open = simple_open, .write = i915_fifo_underrun_reset_write, .llseek = default_llseek, }; static const struct drm_info_list intel_display_debugfs_list[] = { {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0}, {"i915_sr_status", i915_sr_status, 0}, {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0}, {"i915_power_domain_info", i915_power_domain_info, 0}, {"i915_display_info", i915_display_info, 0}, {"i915_display_capabilities", i915_display_capabilities, 0}, {"i915_shared_dplls_info", i915_shared_dplls_info, 0}, {"i915_dp_mst_info", i915_dp_mst_info, 0}, {"i915_ddb_info", i915_ddb_info, 0}, {"i915_lpsp_status", i915_lpsp_status, 0}, }; static const struct { const char *name; const struct file_operations *fops; } intel_display_debugfs_files[] = { {"i915_fifo_underrun_reset", &i915_fifo_underrun_reset_ops}, {"i915_dp_test_data", &i915_displayport_test_data_fops}, {"i915_dp_test_type", &i915_displayport_test_type_fops}, {"i915_dp_test_active", &i915_displayport_test_active_fops}, }; void intel_display_debugfs_register(struct drm_i915_private *i915) { struct intel_display *display = &i915->display; struct drm_minor *minor = i915->drm.primary; int i; for (i = 0; i < ARRAY_SIZE(intel_display_debugfs_files); i++) { debugfs_create_file(intel_display_debugfs_files[i].name, 0644, minor->debugfs_root, to_i915(minor->dev), intel_display_debugfs_files[i].fops); } drm_debugfs_create_files(intel_display_debugfs_list, ARRAY_SIZE(intel_display_debugfs_list), minor->debugfs_root, minor); intel_bios_debugfs_register(display); intel_cdclk_debugfs_register(i915); intel_dmc_debugfs_register(i915); intel_fbc_debugfs_register(display); intel_hpd_debugfs_register(i915); intel_opregion_debugfs_register(display); intel_psr_debugfs_register(display); intel_wm_debugfs_register(i915); intel_display_debugfs_params(display); } static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data) { struct intel_connector *connector = m->private; struct drm_i915_private *i915 = to_i915(connector->base.dev); int ret; ret = drm_modeset_lock_single_interruptible(&i915->drm.mode_config.connection_mutex); if (ret) return ret; if (!connector->base.encoder || connector->base.status != connector_status_connected) { ret = -ENODEV; goto out; } seq_printf(m, "%s:%d HDCP version: ", connector->base.name, connector->base.base.id); intel_hdcp_info(m, connector, false); out: drm_modeset_unlock(&i915->drm.mode_config.connection_mutex); return ret; } DEFINE_SHOW_ATTRIBUTE(i915_hdcp_sink_capability); static int i915_lpsp_capability_show(struct seq_file *m, void *data) { struct intel_connector *connector = m->private; struct drm_i915_private *i915 = to_i915(connector->base.dev); struct intel_encoder *encoder = intel_attached_encoder(connector); int connector_type = connector->base.connector_type; bool lpsp_capable = false; if (!encoder) return -ENODEV; if (connector->base.status != connector_status_connected) return -ENODEV; if (DISPLAY_VER(i915) >= 13) lpsp_capable = encoder->port <= PORT_B; else if (DISPLAY_VER(i915) >= 12) /* * Actually TGL can drive LPSP on port till DDI_C * but there is no physical connected DDI_C on TGL sku's, * even driver is not initilizing DDI_C port for gen12. */ lpsp_capable = encoder->port <= PORT_B; else if (DISPLAY_VER(i915) == 11) lpsp_capable = (connector_type == DRM_MODE_CONNECTOR_DSI || connector_type == DRM_MODE_CONNECTOR_eDP); else if (IS_DISPLAY_VER(i915, 9, 10)) lpsp_capable = (encoder->port == PORT_A && (connector_type == DRM_MODE_CONNECTOR_DSI || connector_type == DRM_MODE_CONNECTOR_eDP || connector_type == DRM_MODE_CONNECTOR_DisplayPort)); else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) lpsp_capable = connector_type == DRM_MODE_CONNECTOR_eDP; seq_printf(m, "LPSP: %s\n", lpsp_capable ? "capable" : "incapable"); return 0; } DEFINE_SHOW_ATTRIBUTE(i915_lpsp_capability); static int i915_dsc_fec_support_show(struct seq_file *m, void *data) { struct intel_connector *connector = m->private; struct drm_i915_private *i915 = to_i915(connector->base.dev); struct drm_crtc *crtc; struct intel_dp *intel_dp; struct drm_modeset_acquire_ctx ctx; struct intel_crtc_state *crtc_state = NULL; int ret = 0; bool try_again = false; drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); do { try_again = false; ret = drm_modeset_lock(&i915->drm.mode_config.connection_mutex, &ctx); if (ret) { if (ret == -EDEADLK && !drm_modeset_backoff(&ctx)) { try_again = true; continue; } break; } crtc = connector->base.state->crtc; if (connector->base.status != connector_status_connected || !crtc) { ret = -ENODEV; break; } ret = drm_modeset_lock(&crtc->mutex, &ctx); if (ret == -EDEADLK) { ret = drm_modeset_backoff(&ctx); if (!ret) { try_again = true; continue; } break; } else if (ret) { break; } intel_dp = intel_attached_dp(connector); crtc_state = to_intel_crtc_state(crtc->state); seq_printf(m, "DSC_Enabled: %s\n", str_yes_no(crtc_state->dsc.compression_enable)); seq_printf(m, "DSC_Sink_Support: %s\n", str_yes_no(drm_dp_sink_supports_dsc(connector->dp.dsc_dpcd))); seq_printf(m, "DSC_Output_Format_Sink_Support: RGB: %s YCBCR420: %s YCBCR444: %s\n", str_yes_no(drm_dp_dsc_sink_supports_format(connector->dp.dsc_dpcd, DP_DSC_RGB)), str_yes_no(drm_dp_dsc_sink_supports_format(connector->dp.dsc_dpcd, DP_DSC_YCbCr420_Native)), str_yes_no(drm_dp_dsc_sink_supports_format(connector->dp.dsc_dpcd, DP_DSC_YCbCr444))); seq_printf(m, "DSC_Sink_BPP_Precision: %d\n", drm_dp_dsc_sink_bpp_incr(connector->dp.dsc_dpcd)); seq_printf(m, "Force_DSC_Enable: %s\n", str_yes_no(intel_dp->force_dsc_en)); if (!intel_dp_is_edp(intel_dp)) seq_printf(m, "FEC_Sink_Support: %s\n", str_yes_no(drm_dp_sink_supports_fec(connector->dp.fec_capability))); } while (try_again); drm_modeset_drop_locks(&ctx); drm_modeset_acquire_fini(&ctx); return ret; } static ssize_t i915_dsc_fec_support_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { struct seq_file *m = file->private_data; struct intel_connector *connector = m->private; struct drm_i915_private *i915 = to_i915(connector->base.dev); struct intel_encoder *encoder = intel_attached_encoder(connector); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); bool dsc_enable = false; int ret; if (len == 0) return 0; drm_dbg(&i915->drm, "Copied %zu bytes from user to force DSC\n", len); ret = kstrtobool_from_user(ubuf, len, &dsc_enable); if (ret < 0) return ret; drm_dbg(&i915->drm, "Got %s for DSC Enable\n", (dsc_enable) ? "true" : "false"); intel_dp->force_dsc_en = dsc_enable; *offp += len; return len; } static int i915_dsc_fec_support_open(struct inode *inode, struct file *file) { return single_open(file, i915_dsc_fec_support_show, inode->i_private); } static const struct file_operations i915_dsc_fec_support_fops = { .owner = THIS_MODULE, .open = i915_dsc_fec_support_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = i915_dsc_fec_support_write }; static int i915_dsc_bpc_show(struct seq_file *m, void *data) { struct intel_connector *connector = m->private; struct drm_i915_private *i915 = to_i915(connector->base.dev); struct intel_encoder *encoder = intel_attached_encoder(connector); struct drm_crtc *crtc; struct intel_crtc_state *crtc_state; int ret; if (!encoder) return -ENODEV; ret = drm_modeset_lock_single_interruptible(&i915->drm.mode_config.connection_mutex); if (ret) return ret; crtc = connector->base.state->crtc; if (connector->base.status != connector_status_connected || !crtc) { ret = -ENODEV; goto out; } crtc_state = to_intel_crtc_state(crtc->state); seq_printf(m, "Input_BPC: %d\n", crtc_state->dsc.config.bits_per_component); out: drm_modeset_unlock(&i915->drm.mode_config.connection_mutex); return ret; } static ssize_t i915_dsc_bpc_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { struct seq_file *m = file->private_data; struct intel_connector *connector = m->private; struct intel_encoder *encoder = intel_attached_encoder(connector); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); int dsc_bpc = 0; int ret; ret = kstrtoint_from_user(ubuf, len, 0, &dsc_bpc); if (ret < 0) return ret; intel_dp->force_dsc_bpc = dsc_bpc; *offp += len; return len; } static int i915_dsc_bpc_open(struct inode *inode, struct file *file) { return single_open(file, i915_dsc_bpc_show, inode->i_private); } static const struct file_operations i915_dsc_bpc_fops = { .owner = THIS_MODULE, .open = i915_dsc_bpc_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = i915_dsc_bpc_write }; static int i915_dsc_output_format_show(struct seq_file *m, void *data) { struct intel_connector *connector = m->private; struct drm_i915_private *i915 = to_i915(connector->base.dev); struct intel_encoder *encoder = intel_attached_encoder(connector); struct drm_crtc *crtc; struct intel_crtc_state *crtc_state; int ret; if (!encoder) return -ENODEV; ret = drm_modeset_lock_single_interruptible(&i915->drm.mode_config.connection_mutex); if (ret) return ret; crtc = connector->base.state->crtc; if (connector->base.status != connector_status_connected || !crtc) { ret = -ENODEV; goto out; } crtc_state = to_intel_crtc_state(crtc->state); seq_printf(m, "DSC_Output_Format: %s\n", intel_output_format_name(crtc_state->output_format)); out: drm_modeset_unlock(&i915->drm.mode_config.connection_mutex); return ret; } static ssize_t i915_dsc_output_format_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { struct seq_file *m = file->private_data; struct intel_connector *connector = m->private; struct intel_encoder *encoder = intel_attached_encoder(connector); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); int dsc_output_format = 0; int ret; ret = kstrtoint_from_user(ubuf, len, 0, &dsc_output_format); if (ret < 0) return ret; intel_dp->force_dsc_output_format = dsc_output_format; *offp += len; return len; } static int i915_dsc_output_format_open(struct inode *inode, struct file *file) { return single_open(file, i915_dsc_output_format_show, inode->i_private); } static const struct file_operations i915_dsc_output_format_fops = { .owner = THIS_MODULE, .open = i915_dsc_output_format_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = i915_dsc_output_format_write }; static int i915_dsc_fractional_bpp_show(struct seq_file *m, void *data) { struct intel_connector *connector = m->private; struct drm_i915_private *i915 = to_i915(connector->base.dev); struct intel_encoder *encoder = intel_attached_encoder(connector); struct drm_crtc *crtc; struct intel_dp *intel_dp; int ret; if (!encoder) return -ENODEV; ret = drm_modeset_lock_single_interruptible(&i915->drm.mode_config.connection_mutex); if (ret) return ret; crtc = connector->base.state->crtc; if (connector->base.status != connector_status_connected || !crtc) { ret = -ENODEV; goto out; } intel_dp = intel_attached_dp(connector); seq_printf(m, "Force_DSC_Fractional_BPP_Enable: %s\n", str_yes_no(intel_dp->force_dsc_fractional_bpp_en)); out: drm_modeset_unlock(&i915->drm.mode_config.connection_mutex); return ret; } static ssize_t i915_dsc_fractional_bpp_write(struct file *file, const char __user *ubuf, size_t len, loff_t *offp) { struct seq_file *m = file->private_data; struct intel_connector *connector = m->private; struct intel_encoder *encoder = intel_attached_encoder(connector); struct drm_i915_private *i915 = to_i915(connector->base.dev); struct intel_dp *intel_dp = enc_to_intel_dp(encoder); bool dsc_fractional_bpp_enable = false; int ret; if (len == 0) return 0; drm_dbg(&i915->drm, "Copied %zu bytes from user to force fractional bpp for DSC\n", len); ret = kstrtobool_from_user(ubuf, len, &dsc_fractional_bpp_enable); if (ret < 0) return ret; drm_dbg(&i915->drm, "Got %s for DSC Fractional BPP Enable\n", (dsc_fractional_bpp_enable) ? "true" : "false"); intel_dp->force_dsc_fractional_bpp_en = dsc_fractional_bpp_enable; *offp += len; return len; } static int i915_dsc_fractional_bpp_open(struct inode *inode, struct file *file) { return single_open(file, i915_dsc_fractional_bpp_show, inode->i_private); } static const struct file_operations i915_dsc_fractional_bpp_fops = { .owner = THIS_MODULE, .open = i915_dsc_fractional_bpp_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, .write = i915_dsc_fractional_bpp_write }; /* * Returns the Current CRTC's bpc. * Example usage: cat /sys/kernel/debug/dri/0/crtc-0/i915_current_bpc */ static int i915_current_bpc_show(struct seq_file *m, void *data) { struct intel_crtc *crtc = m->private; struct intel_crtc_state *crtc_state; int ret; ret = drm_modeset_lock_single_interruptible(&crtc->base.mutex); if (ret) return ret; crtc_state = to_intel_crtc_state(crtc->base.state); seq_printf(m, "Current: %u\n", crtc_state->pipe_bpp / 3); drm_modeset_unlock(&crtc->base.mutex); return ret; } DEFINE_SHOW_ATTRIBUTE(i915_current_bpc); /* Pipe may differ from crtc index if pipes are fused off */ static int intel_crtc_pipe_show(struct seq_file *m, void *unused) { struct intel_crtc *crtc = m->private; seq_printf(m, "%c\n", pipe_name(crtc->pipe)); return 0; } DEFINE_SHOW_ATTRIBUTE(intel_crtc_pipe); /** * intel_connector_debugfs_add - add i915 specific connector debugfs files * @connector: pointer to a registered intel_connector * * Cleanup will be done by drm_connector_unregister() through a call to * drm_debugfs_connector_remove(). */ void intel_connector_debugfs_add(struct intel_connector *connector) { struct drm_i915_private *i915 = to_i915(connector->base.dev); struct dentry *root = connector->base.debugfs_entry; int connector_type = connector->base.connector_type; /* The connector must have been registered beforehands. */ if (!root) return; intel_drrs_connector_debugfs_add(connector); intel_pps_connector_debugfs_add(connector); intel_psr_connector_debugfs_add(connector); intel_alpm_lobf_debugfs_add(connector); intel_dp_link_training_debugfs_add(connector); if (connector_type == DRM_MODE_CONNECTOR_DisplayPort || connector_type == DRM_MODE_CONNECTOR_HDMIA || connector_type == DRM_MODE_CONNECTOR_HDMIB) { debugfs_create_file("i915_hdcp_sink_capability", 0444, root, connector, &i915_hdcp_sink_capability_fops); } if (DISPLAY_VER(i915) >= 11 && ((connector_type == DRM_MODE_CONNECTOR_DisplayPort && !connector->mst_port) || connector_type == DRM_MODE_CONNECTOR_eDP)) { debugfs_create_file("i915_dsc_fec_support", 0644, root, connector, &i915_dsc_fec_support_fops); debugfs_create_file("i915_dsc_bpc", 0644, root, connector, &i915_dsc_bpc_fops); debugfs_create_file("i915_dsc_output_format", 0644, root, connector, &i915_dsc_output_format_fops); debugfs_create_file("i915_dsc_fractional_bpp", 0644, root, connector, &i915_dsc_fractional_bpp_fops); } if (DISPLAY_VER(i915) >= 11 && (connector_type == DRM_MODE_CONNECTOR_DisplayPort || connector_type == DRM_MODE_CONNECTOR_eDP)) { debugfs_create_bool("i915_bigjoiner_force_enable", 0644, root, &connector->force_bigjoiner_enable); } if (connector_type == DRM_MODE_CONNECTOR_DSI || connector_type == DRM_MODE_CONNECTOR_eDP || connector_type == DRM_MODE_CONNECTOR_DisplayPort || connector_type == DRM_MODE_CONNECTOR_HDMIA || connector_type == DRM_MODE_CONNECTOR_HDMIB) debugfs_create_file("i915_lpsp_capability", 0444, root, connector, &i915_lpsp_capability_fops); } /** * intel_crtc_debugfs_add - add i915 specific crtc debugfs files * @crtc: pointer to a drm_crtc * * Failure to add debugfs entries should generally be ignored. */ void intel_crtc_debugfs_add(struct intel_crtc *crtc) { struct dentry *root = crtc->base.debugfs_entry; if (!root) return; crtc_updates_add(crtc); intel_drrs_crtc_debugfs_add(crtc); intel_fbc_crtc_debugfs_add(crtc); hsw_ips_crtc_debugfs_add(crtc); debugfs_create_file("i915_current_bpc", 0444, root, crtc, &i915_current_bpc_fops); debugfs_create_file("i915_pipe", 0444, root, crtc, &intel_crtc_pipe_fops); }