| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jani Nikula | 1856 | 37.03% | 44 | 46.32% |
| Chris Wilson | 830 | 16.56% | 7 | 7.37% |
| Matthew Garrett | 804 | 16.04% | 3 | 3.16% |
| Paulo Zanoni | 377 | 7.52% | 3 | 3.16% |
| Wambui Karuga | 264 | 5.27% | 1 | 1.05% |
| Anisse Astier | 214 | 4.27% | 1 | 1.05% |
| Ville Syrjälä | 180 | 3.59% | 6 | 6.32% |
| Jouni Högander | 76 | 1.52% | 1 | 1.05% |
| Daniel Vetter | 74 | 1.48% | 3 | 3.16% |
| Deepak M | 57 | 1.14% | 2 | 2.11% |
| Peter Lekensteyn | 41 | 0.82% | 1 | 1.05% |
| Dan J Williams | 39 | 0.78% | 1 | 1.05% |
| Ben Widawsky | 31 | 0.62% | 1 | 1.05% |
| Jesse Barnes | 27 | 0.54% | 1 | 1.05% |
| Hans de Goede | 23 | 0.46% | 3 | 3.16% |
| Joonas Lahtinen | 17 | 0.34% | 1 | 1.05% |
| Shashank Sharma | 16 | 0.32% | 1 | 1.05% |
| Rui Zhang | 15 | 0.30% | 1 | 1.05% |
| Aaron Lu | 13 | 0.26% | 1 | 1.05% |
| Pankaj Bharadiya | 12 | 0.24% | 1 | 1.05% |
| Rajat Jain | 10 | 0.20% | 1 | 1.05% |
| Yakui Zhao | 8 | 0.16% | 1 | 1.05% |
| Kai-Heng Feng | 6 | 0.12% | 1 | 1.05% |
| Thomas Zimmermann | 4 | 0.08% | 1 | 1.05% |
| Maarten Lankhorst | 4 | 0.08% | 1 | 1.05% |
| Rob Clark | 4 | 0.08% | 1 | 1.05% |
| Dave Airlie | 3 | 0.06% | 1 | 1.05% |
| Michal Wajdeczko | 2 | 0.04% | 1 | 1.05% |
| Tvrtko A. Ursulin | 2 | 0.04% | 1 | 1.05% |
| Hannes Eder | 1 | 0.02% | 1 | 1.05% |
| Li Peng | 1 | 0.02% | 1 | 1.05% |
| Christoph Fritz | 1 | 0.02% | 1 | 1.05% |
| Total | 5012 | 95 |
/* * Copyright 2008 Intel Corporation <hong.liu@intel.com> * Copyright 2008 Red Hat <mjg@redhat.com> * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NON-INFRINGEMENT. IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ #include <linux/acpi.h> #include <linux/dmi.h> #include <linux/firmware.h> #include <acpi/video.h> #include <drm/drm_edid.h> #include "i915_drv.h" #include "intel_acpi.h" #include "intel_backlight.h" #include "intel_display_types.h" #include "intel_opregion.h" #include "intel_pci_config.h" #define OPREGION_HEADER_OFFSET 0 #define OPREGION_ACPI_OFFSET 0x100 #define ACPI_CLID 0x01ac /* current lid state indicator */ #define ACPI_CDCK 0x01b0 /* current docking state indicator */ #define OPREGION_SWSCI_OFFSET 0x200 #define OPREGION_ASLE_OFFSET 0x300 #define OPREGION_VBT_OFFSET 0x400 #define OPREGION_ASLE_EXT_OFFSET 0x1C00 #define OPREGION_SIGNATURE "IntelGraphicsMem" #define MBOX_ACPI BIT(0) /* Mailbox #1 */ #define MBOX_SWSCI BIT(1) /* Mailbox #2 (obsolete from v2.x) */ #define MBOX_ASLE BIT(2) /* Mailbox #3 */ #define MBOX_ASLE_EXT BIT(4) /* Mailbox #5 */ #define MBOX_BACKLIGHT BIT(5) /* Mailbox #2 (valid from v3.x) */ #define PCON_HEADLESS_SKU BIT(13) struct opregion_header { u8 signature[16]; u32 size; struct { u8 rsvd; u8 revision; u8 minor; u8 major; } __packed over; u8 bios_ver[32]; u8 vbios_ver[16]; u8 driver_ver[16]; u32 mboxes; u32 driver_model; u32 pcon; u8 dver[32]; u8 rsvd[124]; } __packed; /* OpRegion mailbox #1: public ACPI methods */ struct opregion_acpi { u32 drdy; /* driver readiness */ u32 csts; /* notification status */ u32 cevt; /* current event */ u8 rsvd1[20]; u32 didl[8]; /* supported display devices ID list */ u32 cpdl[8]; /* currently presented display list */ u32 cadl[8]; /* currently active display list */ u32 nadl[8]; /* next active devices list */ u32 aslp; /* ASL sleep time-out */ u32 tidx; /* toggle table index */ u32 chpd; /* current hotplug enable indicator */ u32 clid; /* current lid state*/ u32 cdck; /* current docking state */ u32 sxsw; /* Sx state resume */ u32 evts; /* ASL supported events */ u32 cnot; /* current OS notification */ u32 nrdy; /* driver status */ u32 did2[7]; /* extended supported display devices ID list */ u32 cpd2[7]; /* extended attached display devices list */ u8 rsvd2[4]; } __packed; /* OpRegion mailbox #2: SWSCI */ struct opregion_swsci { u32 scic; /* SWSCI command|status|data */ u32 parm; /* command parameters */ u32 dslp; /* driver sleep time-out */ u8 rsvd[244]; } __packed; /* OpRegion mailbox #3: ASLE */ struct opregion_asle { u32 ardy; /* driver readiness */ u32 aslc; /* ASLE interrupt command */ u32 tche; /* technology enabled indicator */ u32 alsi; /* current ALS illuminance reading */ u32 bclp; /* backlight brightness to set */ u32 pfit; /* panel fitting state */ u32 cblv; /* current brightness level */ u16 bclm[20]; /* backlight level duty cycle mapping table */ u32 cpfm; /* current panel fitting mode */ u32 epfm; /* enabled panel fitting modes */ u8 plut[74]; /* panel LUT and identifier */ u32 pfmb; /* PWM freq and min brightness */ u32 cddv; /* color correction default values */ u32 pcft; /* power conservation features */ u32 srot; /* supported rotation angles */ u32 iuer; /* IUER events */ u64 fdss; u32 fdsp; u32 stat; u64 rvda; /* Physical (2.0) or relative from opregion (2.1+) * address of raw VBT data. */ u32 rvds; /* Size of raw vbt data */ u8 rsvd[58]; } __packed; /* OpRegion mailbox #5: ASLE ext */ struct opregion_asle_ext { u32 phed; /* Panel Header */ u8 bddc[256]; /* Panel EDID */ u8 rsvd[764]; } __packed; /* Driver readiness indicator */ #define ASLE_ARDY_READY (1 << 0) #define ASLE_ARDY_NOT_READY (0 << 0) /* ASLE Interrupt Command (ASLC) bits */ #define ASLC_SET_ALS_ILLUM (1 << 0) #define ASLC_SET_BACKLIGHT (1 << 1) #define ASLC_SET_PFIT (1 << 2) #define ASLC_SET_PWM_FREQ (1 << 3) #define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) #define ASLC_BUTTON_ARRAY (1 << 5) #define ASLC_CONVERTIBLE_INDICATOR (1 << 6) #define ASLC_DOCKING_INDICATOR (1 << 7) #define ASLC_ISCT_STATE_CHANGE (1 << 8) #define ASLC_REQ_MSK 0x1ff /* response bits */ #define ASLC_ALS_ILLUM_FAILED (1 << 10) #define ASLC_BACKLIGHT_FAILED (1 << 12) #define ASLC_PFIT_FAILED (1 << 14) #define ASLC_PWM_FREQ_FAILED (1 << 16) #define ASLC_ROTATION_ANGLES_FAILED (1 << 18) #define ASLC_BUTTON_ARRAY_FAILED (1 << 20) #define ASLC_CONVERTIBLE_FAILED (1 << 22) #define ASLC_DOCKING_FAILED (1 << 24) #define ASLC_ISCT_STATE_FAILED (1 << 26) /* Technology enabled indicator */ #define ASLE_TCHE_ALS_EN (1 << 0) #define ASLE_TCHE_BLC_EN (1 << 1) #define ASLE_TCHE_PFIT_EN (1 << 2) #define ASLE_TCHE_PFMB_EN (1 << 3) /* ASLE backlight brightness to set */ #define ASLE_BCLP_VALID (1<<31) #define ASLE_BCLP_MSK (~(1<<31)) /* ASLE panel fitting request */ #define ASLE_PFIT_VALID (1<<31) #define ASLE_PFIT_CENTER (1<<0) #define ASLE_PFIT_STRETCH_TEXT (1<<1) #define ASLE_PFIT_STRETCH_GFX (1<<2) /* PWM frequency and minimum brightness */ #define ASLE_PFMB_BRIGHTNESS_MASK (0xff) #define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) #define ASLE_PFMB_PWM_MASK (0x7ffffe00) #define ASLE_PFMB_PWM_VALID (1<<31) #define ASLE_CBLV_VALID (1<<31) /* IUER */ #define ASLE_IUER_DOCKING (1 << 7) #define ASLE_IUER_CONVERTIBLE (1 << 6) #define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) #define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) #define ASLE_IUER_VOLUME_UP_BTN (1 << 2) #define ASLE_IUER_WINDOWS_BTN (1 << 1) #define ASLE_IUER_POWER_BTN (1 << 0) #define ASLE_PHED_EDID_VALID_MASK 0x3 /* Software System Control Interrupt (SWSCI) */ #define SWSCI_SCIC_INDICATOR (1 << 0) #define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 #define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) #define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 #define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) #define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 #define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) #define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 #define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) #define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 #define SWSCI_FUNCTION_CODE(main, sub) \ ((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ (sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) /* SWSCI: Get BIOS Data (GBDA) */ #define SWSCI_GBDA 4 #define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) #define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) #define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) #define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) #define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) #define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) #define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) /* SWSCI: System BIOS Callbacks (SBCB) */ #define SWSCI_SBCB 6 #define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) #define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) #define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) #define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) #define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) #define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) #define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) #define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) #define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) #define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) #define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) #define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) #define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) #define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) #define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) #define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) #define MAX_DSLP 1500 static int check_swsci_function(struct drm_i915_private *i915, u32 function) { struct opregion_swsci *swsci = i915->display.opregion.swsci; u32 main_function, sub_function; if (!swsci) return -ENODEV; main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> SWSCI_SCIC_MAIN_FUNCTION_SHIFT; sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> SWSCI_SCIC_SUB_FUNCTION_SHIFT; /* Check if we can call the function. See swsci_setup for details. */ if (main_function == SWSCI_SBCB) { if ((i915->display.opregion.swsci_sbcb_sub_functions & (1 << sub_function)) == 0) return -EINVAL; } else if (main_function == SWSCI_GBDA) { if ((i915->display.opregion.swsci_gbda_sub_functions & (1 << sub_function)) == 0) return -EINVAL; } return 0; } static int swsci(struct drm_i915_private *dev_priv, u32 function, u32 parm, u32 *parm_out) { struct opregion_swsci *swsci = dev_priv->display.opregion.swsci; struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); u32 scic, dslp; u16 swsci_val; int ret; ret = check_swsci_function(dev_priv, function); if (ret) return ret; /* Driver sleep timeout in ms. */ dslp = swsci->dslp; if (!dslp) { /* The spec says 2ms should be the default, but it's too small * for some machines. */ dslp = 50; } else if (dslp > MAX_DSLP) { /* Hey bios, trust must be earned. */ DRM_INFO_ONCE("ACPI BIOS requests an excessive sleep of %u ms, " "using %u ms instead\n", dslp, MAX_DSLP); dslp = MAX_DSLP; } /* The spec tells us to do this, but we are the only user... */ scic = swsci->scic; if (scic & SWSCI_SCIC_INDICATOR) { drm_dbg(&dev_priv->drm, "SWSCI request already in progress\n"); return -EBUSY; } scic = function | SWSCI_SCIC_INDICATOR; swsci->parm = parm; swsci->scic = scic; /* Ensure SCI event is selected and event trigger is cleared. */ pci_read_config_word(pdev, SWSCI, &swsci_val); if (!(swsci_val & SWSCI_SCISEL) || (swsci_val & SWSCI_GSSCIE)) { swsci_val |= SWSCI_SCISEL; swsci_val &= ~SWSCI_GSSCIE; pci_write_config_word(pdev, SWSCI, swsci_val); } /* Use event trigger to tell bios to check the mail. */ swsci_val |= SWSCI_GSSCIE; pci_write_config_word(pdev, SWSCI, swsci_val); /* Poll for the result. */ #define C (((scic = swsci->scic) & SWSCI_SCIC_INDICATOR) == 0) if (wait_for(C, dslp)) { drm_dbg(&dev_priv->drm, "SWSCI request timed out\n"); return -ETIMEDOUT; } scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> SWSCI_SCIC_EXIT_STATUS_SHIFT; /* Note: scic == 0 is an error! */ if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { drm_dbg(&dev_priv->drm, "SWSCI request error %u\n", scic); return -EIO; } if (parm_out) *parm_out = swsci->parm; return 0; #undef C } #define DISPLAY_TYPE_CRT 0 #define DISPLAY_TYPE_TV 1 #define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 #define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, bool enable) { struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev); u32 parm = 0; u32 type = 0; u32 port; int ret; /* don't care about old stuff for now */ if (!HAS_DDI(dev_priv)) return 0; /* Avoid port out of bounds checks if SWSCI isn't there. */ ret = check_swsci_function(dev_priv, SWSCI_SBCB_DISPLAY_POWER_STATE); if (ret) return ret; if (intel_encoder->type == INTEL_OUTPUT_DSI) port = 0; else port = intel_encoder->port; if (port == PORT_E) { port = 0; } else { parm |= 1 << port; port++; } /* * The port numbering and mapping here is bizarre. The now-obsolete * swsci spec supports ports numbered [0..4]. Port E is handled as a * special case, but port F and beyond are not. The functionality is * supposed to be obsolete for new platforms. Just bail out if the port * number is out of bounds after mapping. */ if (port > 4) { drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] port %c (index %u) out of bounds for display power state notification\n", intel_encoder->base.base.id, intel_encoder->base.name, port_name(intel_encoder->port), port); return -EINVAL; } if (!enable) parm |= 4 << 8; switch (intel_encoder->type) { case INTEL_OUTPUT_ANALOG: type = DISPLAY_TYPE_CRT; break; case INTEL_OUTPUT_DDI: case INTEL_OUTPUT_DP: case INTEL_OUTPUT_HDMI: case INTEL_OUTPUT_DP_MST: type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; break; case INTEL_OUTPUT_EDP: case INTEL_OUTPUT_DSI: type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; break; default: drm_WARN_ONCE(&dev_priv->drm, 1, "unsupported intel_encoder type %d\n", intel_encoder->type); return -EINVAL; } parm |= type << (16 + port * 3); return swsci(dev_priv, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); } static const struct { pci_power_t pci_power_state; u32 parm; } power_state_map[] = { { PCI_D0, 0x00 }, { PCI_D1, 0x01 }, { PCI_D2, 0x02 }, { PCI_D3hot, 0x04 }, { PCI_D3cold, 0x04 }, }; int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv, pci_power_t state) { int i; if (!HAS_DDI(dev_priv)) return 0; for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { if (state == power_state_map[i].pci_power_state) return swsci(dev_priv, SWSCI_SBCB_ADAPTER_POWER_STATE, power_state_map[i].parm, NULL); } return -EINVAL; } static u32 asle_set_backlight(struct drm_i915_private *dev_priv, u32 bclp) { struct intel_connector *connector; struct drm_connector_list_iter conn_iter; struct opregion_asle *asle = dev_priv->display.opregion.asle; struct drm_device *dev = &dev_priv->drm; drm_dbg(&dev_priv->drm, "bclp = 0x%08x\n", bclp); if (acpi_video_get_backlight_type() == acpi_backlight_native) { drm_dbg_kms(&dev_priv->drm, "opregion backlight request ignored\n"); return 0; } if (!(bclp & ASLE_BCLP_VALID)) return ASLC_BACKLIGHT_FAILED; bclp &= ASLE_BCLP_MSK; if (bclp > 255) return ASLC_BACKLIGHT_FAILED; drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); /* * Update backlight on all connectors that support backlight (usually * only one). */ drm_dbg_kms(&dev_priv->drm, "updating opregion backlight %d/255\n", bclp); drm_connector_list_iter_begin(dev, &conn_iter); for_each_intel_connector_iter(connector, &conn_iter) intel_backlight_set_acpi(connector->base.state, bclp, 255); drm_connector_list_iter_end(&conn_iter); asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID; drm_modeset_unlock(&dev->mode_config.connection_mutex); return 0; } static u32 asle_set_als_illum(struct drm_i915_private *dev_priv, u32 alsi) { /* alsi is the current ALS reading in lux. 0 indicates below sensor range, 0xffff indicates above sensor range. 1-0xfffe are valid */ drm_dbg(&dev_priv->drm, "Illum is not supported\n"); return ASLC_ALS_ILLUM_FAILED; } static u32 asle_set_pwm_freq(struct drm_i915_private *dev_priv, u32 pfmb) { drm_dbg(&dev_priv->drm, "PWM freq is not supported\n"); return ASLC_PWM_FREQ_FAILED; } static u32 asle_set_pfit(struct drm_i915_private *dev_priv, u32 pfit) { /* Panel fitting is currently controlled by the X code, so this is a noop until modesetting support works fully */ drm_dbg(&dev_priv->drm, "Pfit is not supported\n"); return ASLC_PFIT_FAILED; } static u32 asle_set_supported_rotation_angles(struct drm_i915_private *dev_priv, u32 srot) { drm_dbg(&dev_priv->drm, "SROT is not supported\n"); return ASLC_ROTATION_ANGLES_FAILED; } static u32 asle_set_button_array(struct drm_i915_private *dev_priv, u32 iuer) { if (!iuer) drm_dbg(&dev_priv->drm, "Button array event is not supported (nothing)\n"); if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) drm_dbg(&dev_priv->drm, "Button array event is not supported (rotation lock)\n"); if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) drm_dbg(&dev_priv->drm, "Button array event is not supported (volume down)\n"); if (iuer & ASLE_IUER_VOLUME_UP_BTN) drm_dbg(&dev_priv->drm, "Button array event is not supported (volume up)\n"); if (iuer & ASLE_IUER_WINDOWS_BTN) drm_dbg(&dev_priv->drm, "Button array event is not supported (windows)\n"); if (iuer & ASLE_IUER_POWER_BTN) drm_dbg(&dev_priv->drm, "Button array event is not supported (power)\n"); return ASLC_BUTTON_ARRAY_FAILED; } static u32 asle_set_convertible(struct drm_i915_private *dev_priv, u32 iuer) { if (iuer & ASLE_IUER_CONVERTIBLE) drm_dbg(&dev_priv->drm, "Convertible is not supported (clamshell)\n"); else drm_dbg(&dev_priv->drm, "Convertible is not supported (slate)\n"); return ASLC_CONVERTIBLE_FAILED; } static u32 asle_set_docking(struct drm_i915_private *dev_priv, u32 iuer) { if (iuer & ASLE_IUER_DOCKING) drm_dbg(&dev_priv->drm, "Docking is not supported (docked)\n"); else drm_dbg(&dev_priv->drm, "Docking is not supported (undocked)\n"); return ASLC_DOCKING_FAILED; } static u32 asle_isct_state(struct drm_i915_private *dev_priv) { drm_dbg(&dev_priv->drm, "ISCT is not supported\n"); return ASLC_ISCT_STATE_FAILED; } static void asle_work(struct work_struct *work) { struct intel_opregion *opregion = container_of(work, struct intel_opregion, asle_work); struct drm_i915_private *dev_priv = container_of(opregion, struct drm_i915_private, display.opregion); struct opregion_asle *asle = dev_priv->display.opregion.asle; u32 aslc_stat = 0; u32 aslc_req; if (!asle) return; aslc_req = asle->aslc; if (!(aslc_req & ASLC_REQ_MSK)) { drm_dbg(&dev_priv->drm, "No request on ASLC interrupt 0x%08x\n", aslc_req); return; } if (aslc_req & ASLC_SET_ALS_ILLUM) aslc_stat |= asle_set_als_illum(dev_priv, asle->alsi); if (aslc_req & ASLC_SET_BACKLIGHT) aslc_stat |= asle_set_backlight(dev_priv, asle->bclp); if (aslc_req & ASLC_SET_PFIT) aslc_stat |= asle_set_pfit(dev_priv, asle->pfit); if (aslc_req & ASLC_SET_PWM_FREQ) aslc_stat |= asle_set_pwm_freq(dev_priv, asle->pfmb); if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) aslc_stat |= asle_set_supported_rotation_angles(dev_priv, asle->srot); if (aslc_req & ASLC_BUTTON_ARRAY) aslc_stat |= asle_set_button_array(dev_priv, asle->iuer); if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) aslc_stat |= asle_set_convertible(dev_priv, asle->iuer); if (aslc_req & ASLC_DOCKING_INDICATOR) aslc_stat |= asle_set_docking(dev_priv, asle->iuer); if (aslc_req & ASLC_ISCT_STATE_CHANGE) aslc_stat |= asle_isct_state(dev_priv); asle->aslc = aslc_stat; } void intel_opregion_asle_intr(struct drm_i915_private *dev_priv) { if (dev_priv->display.opregion.asle) schedule_work(&dev_priv->display.opregion.asle_work); } #define ACPI_EV_DISPLAY_SWITCH (1<<0) #define ACPI_EV_LID (1<<1) #define ACPI_EV_DOCK (1<<2) /* * The only video events relevant to opregion are 0x80. These indicate either a * docking event, lid switch or display switch request. In Linux, these are * handled by the dock, button and video drivers. */ static int intel_opregion_video_event(struct notifier_block *nb, unsigned long val, void *data) { struct intel_opregion *opregion = container_of(nb, struct intel_opregion, acpi_notifier); struct acpi_bus_event *event = data; struct opregion_acpi *acpi; int ret = NOTIFY_OK; if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0) return NOTIFY_DONE; acpi = opregion->acpi; if (event->type == 0x80 && ((acpi->cevt & 1) == 0)) ret = NOTIFY_BAD; acpi->csts = 0; return ret; } /* * Initialise the DIDL field in opregion. This passes a list of devices to * the firmware. Values are defined by section B.4.2 of the ACPI specification * (version 3) */ static void set_did(struct intel_opregion *opregion, int i, u32 val) { if (i < ARRAY_SIZE(opregion->acpi->didl)) { opregion->acpi->didl[i] = val; } else { i -= ARRAY_SIZE(opregion->acpi->didl); if (WARN_ON(i >= ARRAY_SIZE(opregion->acpi->did2))) return; opregion->acpi->did2[i] = val; } } static void intel_didl_outputs(struct drm_i915_private *dev_priv) { struct intel_opregion *opregion = &dev_priv->display.opregion; struct intel_connector *connector; struct drm_connector_list_iter conn_iter; int i = 0, max_outputs; /* * In theory, did2, the extended didl, gets added at opregion version * 3.0. In practice, however, we're supposed to set it for earlier * versions as well, since a BIOS that doesn't understand did2 should * not look at it anyway. Use a variable so we can tweak this if a need * arises later. */ max_outputs = ARRAY_SIZE(opregion->acpi->didl) + ARRAY_SIZE(opregion->acpi->did2); intel_acpi_device_id_update(dev_priv); drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); for_each_intel_connector_iter(connector, &conn_iter) { if (i < max_outputs) set_did(opregion, i, connector->acpi_device_id); i++; } drm_connector_list_iter_end(&conn_iter); drm_dbg_kms(&dev_priv->drm, "%d outputs detected\n", i); if (i > max_outputs) drm_err(&dev_priv->drm, "More than %d outputs in connector list\n", max_outputs); /* If fewer than max outputs, the list must be null terminated */ if (i < max_outputs) set_did(opregion, i, 0); } static void intel_setup_cadls(struct drm_i915_private *dev_priv) { struct intel_opregion *opregion = &dev_priv->display.opregion; struct intel_connector *connector; struct drm_connector_list_iter conn_iter; int i = 0; /* * Initialize the CADL field from the connector device ids. This is * essentially the same as copying from the DIDL. Technically, this is * not always correct as display outputs may exist, but not active. This * initialization is necessary for some Clevo laptops that check this * field before processing the brightness and display switching hotkeys. * * Note that internal panels should be at the front of the connector * list already, ensuring they're not left out. */ drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter); for_each_intel_connector_iter(connector, &conn_iter) { if (i >= ARRAY_SIZE(opregion->acpi->cadl)) break; opregion->acpi->cadl[i++] = connector->acpi_device_id; } drm_connector_list_iter_end(&conn_iter); /* If fewer than 8 active devices, the list must be null terminated */ if (i < ARRAY_SIZE(opregion->acpi->cadl)) opregion->acpi->cadl[i] = 0; } static void swsci_setup(struct drm_i915_private *dev_priv) { struct intel_opregion *opregion = &dev_priv->display.opregion; bool requested_callbacks = false; u32 tmp; /* Sub-function code 0 is okay, let's allow them. */ opregion->swsci_gbda_sub_functions = 1; opregion->swsci_sbcb_sub_functions = 1; /* We use GBDA to ask for supported GBDA calls. */ if (swsci(dev_priv, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { /* make the bits match the sub-function codes */ tmp <<= 1; opregion->swsci_gbda_sub_functions |= tmp; } /* * We also use GBDA to ask for _requested_ SBCB callbacks. The driver * must not call interfaces that are not specifically requested by the * bios. */ if (swsci(dev_priv, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { /* here, the bits already match sub-function codes */ opregion->swsci_sbcb_sub_functions |= tmp; requested_callbacks = true; } /* * But we use SBCB to ask for _supported_ SBCB calls. This does not mean * the callback is _requested_. But we still can't call interfaces that * are not requested. */ if (swsci(dev_priv, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { /* make the bits match the sub-function codes */ u32 low = tmp & 0x7ff; u32 high = tmp & ~0xfff; /* bit 11 is reserved */ tmp = (high << 4) | (low << 1) | 1; /* best guess what to do with supported wrt requested */ if (requested_callbacks) { u32 req = opregion->swsci_sbcb_sub_functions; if ((req & tmp) != req) drm_dbg(&dev_priv->drm, "SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); /* XXX: for now, trust the requested callbacks */ /* opregion->swsci_sbcb_sub_functions &= tmp; */ } else { opregion->swsci_sbcb_sub_functions |= tmp; } } drm_dbg(&dev_priv->drm, "SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", opregion->swsci_gbda_sub_functions, opregion->swsci_sbcb_sub_functions); } static int intel_no_opregion_vbt_callback(const struct dmi_system_id *id) { DRM_DEBUG_KMS("Falling back to manually reading VBT from " "VBIOS ROM for %s\n", id->ident); return 1; } static const struct dmi_system_id intel_no_opregion_vbt[] = { { .callback = intel_no_opregion_vbt_callback, .ident = "ThinkCentre A57", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_MATCH(DMI_PRODUCT_NAME, "97027RG"), }, }, { } }; static int intel_load_vbt_firmware(struct drm_i915_private *dev_priv) { struct intel_opregion *opregion = &dev_priv->display.opregion; const struct firmware *fw = NULL; const char *name = dev_priv->params.vbt_firmware; int ret; if (!name || !*name) return -ENOENT; ret = request_firmware(&fw, name, dev_priv->drm.dev); if (ret) { drm_err(&dev_priv->drm, "Requesting VBT firmware \"%s\" failed (%d)\n", name, ret); return ret; } if (intel_bios_is_valid_vbt(fw->data, fw->size)) { opregion->vbt_firmware = kmemdup(fw->data, fw->size, GFP_KERNEL); if (opregion->vbt_firmware) { drm_dbg_kms(&dev_priv->drm, "Found valid VBT firmware \"%s\"\n", name); opregion->vbt = opregion->vbt_firmware; opregion->vbt_size = fw->size; ret = 0; } else { ret = -ENOMEM; } } else { drm_dbg_kms(&dev_priv->drm, "Invalid VBT firmware \"%s\"\n", name); ret = -EINVAL; } release_firmware(fw); return ret; } int intel_opregion_setup(struct drm_i915_private *dev_priv) { struct intel_opregion *opregion = &dev_priv->display.opregion; struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); u32 asls, mboxes; char buf[sizeof(OPREGION_SIGNATURE)]; int err = 0; void *base; const void *vbt; u32 vbt_size; BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100); BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100); BUILD_BUG_ON(sizeof(struct opregion_swsci) != 0x100); BUILD_BUG_ON(sizeof(struct opregion_asle) != 0x100); BUILD_BUG_ON(sizeof(struct opregion_asle_ext) != 0x400); pci_read_config_dword(pdev, ASLS, &asls); drm_dbg(&dev_priv->drm, "graphic opregion physical addr: 0x%x\n", asls); if (asls == 0) { drm_dbg(&dev_priv->drm, "ACPI OpRegion not supported!\n"); return -ENOTSUPP; } INIT_WORK(&opregion->asle_work, asle_work); base = memremap(asls, OPREGION_SIZE, MEMREMAP_WB); if (!base) return -ENOMEM; memcpy(buf, base, sizeof(buf)); if (memcmp(buf, OPREGION_SIGNATURE, 16)) { drm_dbg(&dev_priv->drm, "opregion signature mismatch\n"); err = -EINVAL; goto err_out; } opregion->header = base; opregion->lid_state = base + ACPI_CLID; drm_dbg(&dev_priv->drm, "ACPI OpRegion version %u.%u.%u\n", opregion->header->over.major, opregion->header->over.minor, opregion->header->over.revision); mboxes = opregion->header->mboxes; if (mboxes & MBOX_ACPI) { drm_dbg(&dev_priv->drm, "Public ACPI methods supported\n"); opregion->acpi = base + OPREGION_ACPI_OFFSET; /* * Indicate we handle monitor hotplug events ourselves so we do * not need ACPI notifications for them. Disabling these avoids * triggering the AML code doing the notifation, which may be * broken as Windows also seems to disable these. */ opregion->acpi->chpd = 1; } if (mboxes & MBOX_SWSCI) { u8 major = opregion->header->over.major; if (major >= 3) { drm_err(&dev_priv->drm, "SWSCI Mailbox #2 present for opregion v3.x, ignoring\n"); } else { if (major >= 2) drm_dbg(&dev_priv->drm, "SWSCI Mailbox #2 present for opregion v2.x\n"); drm_dbg(&dev_priv->drm, "SWSCI supported\n"); opregion->swsci = base + OPREGION_SWSCI_OFFSET; swsci_setup(dev_priv); } } if (mboxes & MBOX_ASLE) { drm_dbg(&dev_priv->drm, "ASLE supported\n"); opregion->asle = base + OPREGION_ASLE_OFFSET; opregion->asle->ardy = ASLE_ARDY_NOT_READY; } if (mboxes & MBOX_ASLE_EXT) { drm_dbg(&dev_priv->drm, "ASLE extension supported\n"); opregion->asle_ext = base + OPREGION_ASLE_EXT_OFFSET; } if (mboxes & MBOX_BACKLIGHT) { drm_dbg(&dev_priv->drm, "Mailbox #2 for backlight present\n"); } if (intel_load_vbt_firmware(dev_priv) == 0) goto out; if (dmi_check_system(intel_no_opregion_vbt)) goto out; if (opregion->header->over.major >= 2 && opregion->asle && opregion->asle->rvda && opregion->asle->rvds) { resource_size_t rvda = opregion->asle->rvda; /* * opregion 2.0: rvda is the physical VBT address. * * opregion 2.1+: rvda is unsigned, relative offset from * opregion base, and should never point within opregion. */ if (opregion->header->over.major > 2 || opregion->header->over.minor >= 1) { drm_WARN_ON(&dev_priv->drm, rvda < OPREGION_SIZE); rvda += asls; } opregion->rvda = memremap(rvda, opregion->asle->rvds, MEMREMAP_WB); vbt = opregion->rvda; vbt_size = opregion->asle->rvds; if (intel_bios_is_valid_vbt(vbt, vbt_size)) { drm_dbg_kms(&dev_priv->drm, "Found valid VBT in ACPI OpRegion (RVDA)\n"); opregion->vbt = vbt; opregion->vbt_size = vbt_size; goto out; } else { drm_dbg_kms(&dev_priv->drm, "Invalid VBT in ACPI OpRegion (RVDA)\n"); memunmap(opregion->rvda); opregion->rvda = NULL; } } vbt = base + OPREGION_VBT_OFFSET; /* * The VBT specification says that if the ASLE ext mailbox is not used * its area is reserved, but on some CHT boards the VBT extends into the * ASLE ext area. Allow this even though it is against the spec, so we * do not end up rejecting the VBT on those boards (and end up not * finding the LCD panel because of this). */ vbt_size = (mboxes & MBOX_ASLE_EXT) ? OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE; vbt_size -= OPREGION_VBT_OFFSET; if (intel_bios_is_valid_vbt(vbt, vbt_size)) { drm_dbg_kms(&dev_priv->drm, "Found valid VBT in ACPI OpRegion (Mailbox #4)\n"); opregion->vbt = vbt; opregion->vbt_size = vbt_size; } else { drm_dbg_kms(&dev_priv->drm, "Invalid VBT in ACPI OpRegion (Mailbox #4)\n"); } out: return 0; err_out: memunmap(base); return err; } static int intel_use_opregion_panel_type_callback(const struct dmi_system_id *id) { DRM_INFO("Using panel type from OpRegion on %s\n", id->ident); return 1; } static const struct dmi_system_id intel_use_opregion_panel_type[] = { { .callback = intel_use_opregion_panel_type_callback, .ident = "Conrac GmbH IX45GM2", .matches = {DMI_MATCH(DMI_SYS_VENDOR, "Conrac GmbH"), DMI_MATCH(DMI_PRODUCT_NAME, "IX45GM2"), }, }, { } }; int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv) { u32 panel_details; int ret; ret = swsci(dev_priv, SWSCI_GBDA_PANEL_DETAILS, 0x0, &panel_details); if (ret) return ret; ret = (panel_details >> 8) & 0xff; if (ret > 0x10) { drm_dbg_kms(&dev_priv->drm, "Invalid OpRegion panel type 0x%x\n", ret); return -EINVAL; } /* fall back to VBT panel type? */ if (ret == 0x0) { drm_dbg_kms(&dev_priv->drm, "No panel type in OpRegion\n"); return -ENODEV; } /* * So far we know that some machined must use it, others must not use it. * There doesn't seem to be any way to determine which way to go, except * via a quirk list :( */ if (!dmi_check_system(intel_use_opregion_panel_type)) { drm_dbg_kms(&dev_priv->drm, "Ignoring OpRegion panel type (%d)\n", ret - 1); return -ENODEV; } return ret - 1; } /** * intel_opregion_get_edid - Fetch EDID from ACPI OpRegion mailbox #5 * @intel_connector: eDP connector * * This reads the ACPI Opregion mailbox #5 to extract the EDID that is passed * to it. * * Returns: * The EDID in the OpRegion, or NULL if there is none or it's invalid. * */ struct edid *intel_opregion_get_edid(struct intel_connector *intel_connector) { struct drm_connector *connector = &intel_connector->base; struct drm_i915_private *i915 = to_i915(connector->dev); struct intel_opregion *opregion = &i915->display.opregion; const void *in_edid; const struct edid *edid; struct edid *new_edid; int len; if (!opregion->asle_ext) return NULL; in_edid = opregion->asle_ext->bddc; /* Validity corresponds to number of 128-byte blocks */ len = (opregion->asle_ext->phed & ASLE_PHED_EDID_VALID_MASK) * 128; if (!len || !memchr_inv(in_edid, 0, len)) return NULL; edid = in_edid; if (len < EDID_LENGTH * (1 + edid->extensions)) { drm_dbg_kms(&i915->drm, "Invalid EDID in ACPI OpRegion (Mailbox #5): too short\n"); return NULL; } new_edid = drm_edid_duplicate(edid); if (!new_edid) return NULL; if (!drm_edid_is_valid(new_edid)) { kfree(new_edid); drm_dbg_kms(&i915->drm, "Invalid EDID in ACPI OpRegion (Mailbox #5)\n"); return NULL; } return new_edid; } bool intel_opregion_headless_sku(struct drm_i915_private *i915) { struct intel_opregion *opregion = &i915->display.opregion; struct opregion_header *header = opregion->header; if (!header || header->over.major < 2 || (header->over.major == 2 && header->over.minor < 3)) return false; return opregion->header->pcon & PCON_HEADLESS_SKU; } void intel_opregion_register(struct drm_i915_private *i915) { struct intel_opregion *opregion = &i915->display.opregion; if (!opregion->header) return; if (opregion->acpi) { opregion->acpi_notifier.notifier_call = intel_opregion_video_event; register_acpi_notifier(&opregion->acpi_notifier); } intel_opregion_resume(i915); } void intel_opregion_resume(struct drm_i915_private *i915) { struct intel_opregion *opregion = &i915->display.opregion; if (!opregion->header) return; if (opregion->acpi) { intel_didl_outputs(i915); intel_setup_cadls(i915); /* * Notify BIOS we are ready to handle ACPI video ext notifs. * Right now, all the events are handled by the ACPI video * module. We don't actually need to do anything with them. */ opregion->acpi->csts = 0; opregion->acpi->drdy = 1; } if (opregion->asle) { opregion->asle->tche = ASLE_TCHE_BLC_EN; opregion->asle->ardy = ASLE_ARDY_READY; } /* Some platforms abuse the _DSM to enable MUX */ intel_dsm_get_bios_data_funcs_supported(i915); intel_opregion_notify_adapter(i915, PCI_D0); } void intel_opregion_suspend(struct drm_i915_private *i915, pci_power_t state) { struct intel_opregion *opregion = &i915->display.opregion; if (!opregion->header) return; intel_opregion_notify_adapter(i915, state); if (opregion->asle) opregion->asle->ardy = ASLE_ARDY_NOT_READY; cancel_work_sync(&i915->display.opregion.asle_work); if (opregion->acpi) opregion->acpi->drdy = 0; } void intel_opregion_unregister(struct drm_i915_private *i915) { struct intel_opregion *opregion = &i915->display.opregion; intel_opregion_suspend(i915, PCI_D1); if (!opregion->header) return; if (opregion->acpi_notifier.notifier_call) { unregister_acpi_notifier(&opregion->acpi_notifier); opregion->acpi_notifier.notifier_call = NULL; } /* just clear all opregion memory pointers now */ memunmap(opregion->header); if (opregion->rvda) { memunmap(opregion->rvda); opregion->rvda = NULL; } if (opregion->vbt_firmware) { kfree(opregion->vbt_firmware); opregion->vbt_firmware = NULL; } opregion->header = NULL; opregion->acpi = NULL; opregion->swsci = NULL; opregion->asle = NULL; opregion->asle_ext = NULL; opregion->vbt = NULL; opregion->lid_state = NULL; }
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