static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct intel_device_info *intel_info = (struct intel_device_info *) ent->driver_data; if (IS_ALPHA_SUPPORT(intel_info) && !i915.alpha_support) { DRM_INFO("The driver support for your hardware in this kernel version is alpha quality\n" "See CONFIG_DRM_I915_ALPHA_SUPPORT or i915.alpha_support module parameter\n" "to enable support in this kernel version, or check for kernel updates.\n"); return -ENODEV; } /* Only bind to function 0 of the device. Early generations * used function 1 as a placeholder for multi-head. This causes * us confusion instead, especially on the systems where both * functions have the same PCI-ID! */ if (PCI_FUNC(pdev->devfn)) return -ENODEV; /* * apple-gmux is needed on dual GPU MacBook Pro * to probe the panel if we're the inactive GPU. */ if (vga_switcheroo_client_probe_defer(pdev)) return -EPROBE_DEFER; return i915_driver_load(pdev, ent); }
/** * intel_csr_ucode_init() - initialize the firmware loading. * @dev_priv: i915 drm device. * * This function is called at the time of loading the display driver to read * firmware from a .bin file and copied into a internal memory. */ void intel_csr_ucode_init(struct drm_i915_private *dev_priv) { struct intel_csr *csr = &dev_priv->csr; INIT_WORK(&dev_priv->csr.work, csr_load_work_fn); if (!HAS_CSR(dev_priv)) return; if (i915_modparams.dmc_firmware_path) csr->fw_path = i915_modparams.dmc_firmware_path; else if (IS_ICELAKE(dev_priv)) csr->fw_path = I915_CSR_ICL; else if (IS_CANNONLAKE(dev_priv)) csr->fw_path = I915_CSR_CNL; else if (IS_GEMINILAKE(dev_priv)) csr->fw_path = I915_CSR_GLK; else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) csr->fw_path = I915_CSR_KBL; else if (IS_SKYLAKE(dev_priv)) csr->fw_path = I915_CSR_SKL; else if (IS_BROXTON(dev_priv)) csr->fw_path = I915_CSR_BXT; /* * Obtain a runtime pm reference, until CSR is loaded, * to avoid entering runtime-suspend. */ intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); if (csr->fw_path == NULL) { DRM_DEBUG_KMS("No known CSR firmware for platform, disabling runtime PM\n"); WARN_ON(!IS_ALPHA_SUPPORT(INTEL_INFO(dev_priv))); return; } DRM_DEBUG_KMS("Loading %s\n", csr->fw_path); schedule_work(&dev_priv->csr.work); }
/** * intel_csr_ucode_init() - initialize the firmware loading. * @dev_priv: i915 drm device. * * This function is called at the time of loading the display driver to read * firmware from a .bin file and copied into a internal memory. */ void intel_csr_ucode_init(struct drm_i915_private *dev_priv) { struct intel_csr *csr = &dev_priv->csr; INIT_WORK(&dev_priv->csr.work, csr_load_work_fn); if (!HAS_CSR(dev_priv)) return; /* * Obtain a runtime pm reference, until CSR is loaded, to avoid entering * runtime-suspend. * * On error, we return with the rpm wakeref held to prevent runtime * suspend as runtime suspend *requires* a working CSR for whatever * reason. */ intel_csr_runtime_pm_get(dev_priv); if (INTEL_GEN(dev_priv) >= 12) { /* Allow to load fw via parameter using the last known size */ csr->max_fw_size = GEN12_CSR_MAX_FW_SIZE; } else if (IS_GEN(dev_priv, 11)) { csr->fw_path = ICL_CSR_PATH; csr->required_version = ICL_CSR_VERSION_REQUIRED; csr->max_fw_size = ICL_CSR_MAX_FW_SIZE; } else if (IS_CANNONLAKE(dev_priv)) { csr->fw_path = CNL_CSR_PATH; csr->required_version = CNL_CSR_VERSION_REQUIRED; csr->max_fw_size = CNL_CSR_MAX_FW_SIZE; } else if (IS_GEMINILAKE(dev_priv)) { csr->fw_path = GLK_CSR_PATH; csr->required_version = GLK_CSR_VERSION_REQUIRED; csr->max_fw_size = GLK_CSR_MAX_FW_SIZE; } else if (IS_KABYLAKE(dev_priv) || IS_COFFEELAKE(dev_priv)) { csr->fw_path = KBL_CSR_PATH; csr->required_version = KBL_CSR_VERSION_REQUIRED; csr->max_fw_size = KBL_CSR_MAX_FW_SIZE; } else if (IS_SKYLAKE(dev_priv)) { csr->fw_path = SKL_CSR_PATH; csr->required_version = SKL_CSR_VERSION_REQUIRED; csr->max_fw_size = SKL_CSR_MAX_FW_SIZE; } else if (IS_BROXTON(dev_priv)) { csr->fw_path = BXT_CSR_PATH; csr->required_version = BXT_CSR_VERSION_REQUIRED; csr->max_fw_size = BXT_CSR_MAX_FW_SIZE; } if (i915_modparams.dmc_firmware_path) { if (strlen(i915_modparams.dmc_firmware_path) == 0) { csr->fw_path = NULL; DRM_INFO("Disabling CSR firmware and runtime PM\n"); return; } csr->fw_path = i915_modparams.dmc_firmware_path; /* Bypass version check for firmware override. */ csr->required_version = 0; } if (csr->fw_path == NULL) { DRM_DEBUG_KMS("No known CSR firmware for platform, disabling runtime PM\n"); WARN_ON(!IS_ALPHA_SUPPORT(INTEL_INFO(dev_priv))); return; } DRM_DEBUG_KMS("Loading %s\n", csr->fw_path); schedule_work(&dev_priv->csr.work); }