diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_huc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_huc.c | 130 |
1 files changed, 48 insertions, 82 deletions
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c index c144609..9ee8196 100644 --- a/drivers/gpu/drm/i915/intel_huc.c +++ b/drivers/gpu/drm/i915/intel_huc.c @@ -141,58 +141,43 @@ static int huc_ucode_xfer(struct drm_i915_private *dev_priv) } /** - * intel_huc_init() - initiate HuC firmware loading request - * @dev_priv: the drm_i915_private device - * - * Called early during driver load, but after GEM is initialised. The loading - * will continue only when driver explicitly specify firmware name and version. - * All other cases are considered as INTEL_UC_FIRMWARE_NONE either because HW - * is not capable or driver yet support it. And there will be no error message - * for INTEL_UC_FIRMWARE_NONE cases. - * - * The DMA-copying to HW is done later when intel_huc_load() is called. + * intel_huc_select_fw() - selects HuC firmware for loading + * @huc: intel_huc struct */ -void intel_huc_init(struct drm_i915_private *dev_priv) +void intel_huc_select_fw(struct intel_huc *huc) { - struct intel_huc *huc = &dev_priv->huc; - struct intel_uc_fw *huc_fw = &huc->fw; - const char *fw_path = NULL; - - huc_fw->path = NULL; - huc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE; - huc_fw->load_status = INTEL_UC_FIRMWARE_NONE; - huc_fw->fw = INTEL_UC_FW_TYPE_HUC; - - if (!HAS_HUC_UCODE(dev_priv)) - return; - - if (IS_SKYLAKE(dev_priv)) { - fw_path = I915_SKL_HUC_UCODE; - huc_fw->major_ver_wanted = SKL_HUC_FW_MAJOR; - huc_fw->minor_ver_wanted = SKL_HUC_FW_MINOR; + struct drm_i915_private *dev_priv = huc_to_i915(huc); + + huc->fw.path = NULL; + huc->fw.fetch_status = INTEL_UC_FIRMWARE_NONE; + huc->fw.load_status = INTEL_UC_FIRMWARE_NONE; + huc->fw.type = INTEL_UC_FW_TYPE_HUC; + + if (i915.huc_firmware_path) { + huc->fw.path = i915.huc_firmware_path; + huc->fw.major_ver_wanted = 0; + huc->fw.minor_ver_wanted = 0; + } else if (IS_SKYLAKE(dev_priv)) { + huc->fw.path = I915_SKL_HUC_UCODE; + huc->fw.major_ver_wanted = SKL_HUC_FW_MAJOR; + huc->fw.minor_ver_wanted = SKL_HUC_FW_MINOR; } else if (IS_BROXTON(dev_priv)) { - fw_path = I915_BXT_HUC_UCODE; - huc_fw->major_ver_wanted = BXT_HUC_FW_MAJOR; - huc_fw->minor_ver_wanted = BXT_HUC_FW_MINOR; + huc->fw.path = I915_BXT_HUC_UCODE; + huc->fw.major_ver_wanted = BXT_HUC_FW_MAJOR; + huc->fw.minor_ver_wanted = BXT_HUC_FW_MINOR; } else if (IS_KABYLAKE(dev_priv)) { - fw_path = I915_KBL_HUC_UCODE; - huc_fw->major_ver_wanted = KBL_HUC_FW_MAJOR; - huc_fw->minor_ver_wanted = KBL_HUC_FW_MINOR; + huc->fw.path = I915_KBL_HUC_UCODE; + huc->fw.major_ver_wanted = KBL_HUC_FW_MAJOR; + huc->fw.minor_ver_wanted = KBL_HUC_FW_MINOR; + } else { + DRM_ERROR("No HuC firmware known for platform with HuC!\n"); + return; } - - huc_fw->path = fw_path; - huc_fw->fetch_status = INTEL_UC_FIRMWARE_PENDING; - - DRM_DEBUG_DRIVER("HuC firmware pending, path %s\n", fw_path); - - WARN(huc_fw->path == NULL, "HuC present but no fw path\n"); - - intel_uc_fw_fetch(dev_priv, huc_fw); } /** - * intel_huc_load() - load HuC uCode to device - * @dev_priv: the drm_i915_private device + * intel_huc_init_hw() - load HuC uCode to device + * @huc: intel_huc structure * * Called from guc_setup() during driver loading and also after a GPU reset. * Be note that HuC loading must be done before GuC loading. @@ -203,26 +188,26 @@ void intel_huc_init(struct drm_i915_private *dev_priv) * * Return: non-zero code on error */ -int intel_huc_load(struct drm_i915_private *dev_priv) +int intel_huc_init_hw(struct intel_huc *huc) { - struct intel_uc_fw *huc_fw = &dev_priv->huc.fw; + struct drm_i915_private *dev_priv = huc_to_i915(huc); int err; - if (huc_fw->fetch_status == INTEL_UC_FIRMWARE_NONE) + if (huc->fw.fetch_status == INTEL_UC_FIRMWARE_NONE) return 0; DRM_DEBUG_DRIVER("%s fw status: fetch %s, load %s\n", - huc_fw->path, - intel_uc_fw_status_repr(huc_fw->fetch_status), - intel_uc_fw_status_repr(huc_fw->load_status)); + huc->fw.path, + intel_uc_fw_status_repr(huc->fw.fetch_status), + intel_uc_fw_status_repr(huc->fw.load_status)); - if (huc_fw->fetch_status == INTEL_UC_FIRMWARE_SUCCESS && - huc_fw->load_status == INTEL_UC_FIRMWARE_FAIL) + if (huc->fw.fetch_status == INTEL_UC_FIRMWARE_SUCCESS && + huc->fw.load_status == INTEL_UC_FIRMWARE_FAIL) return -ENOEXEC; - huc_fw->load_status = INTEL_UC_FIRMWARE_PENDING; + huc->fw.load_status = INTEL_UC_FIRMWARE_PENDING; - switch (huc_fw->fetch_status) { + switch (huc->fw.fetch_status) { case INTEL_UC_FIRMWARE_FAIL: /* something went wrong :( */ err = -EIO; @@ -233,9 +218,9 @@ int intel_huc_load(struct drm_i915_private *dev_priv) default: /* "can't happen" */ WARN_ONCE(1, "HuC fw %s invalid fetch_status %s [%d]\n", - huc_fw->path, - intel_uc_fw_status_repr(huc_fw->fetch_status), - huc_fw->fetch_status); + huc->fw.path, + intel_uc_fw_status_repr(huc->fw.fetch_status), + huc->fw.fetch_status); err = -ENXIO; goto fail; @@ -247,18 +232,18 @@ int intel_huc_load(struct drm_i915_private *dev_priv) if (err) goto fail; - huc_fw->load_status = INTEL_UC_FIRMWARE_SUCCESS; + huc->fw.load_status = INTEL_UC_FIRMWARE_SUCCESS; DRM_DEBUG_DRIVER("%s fw status: fetch %s, load %s\n", - huc_fw->path, - intel_uc_fw_status_repr(huc_fw->fetch_status), - intel_uc_fw_status_repr(huc_fw->load_status)); + huc->fw.path, + intel_uc_fw_status_repr(huc->fw.fetch_status), + intel_uc_fw_status_repr(huc->fw.load_status)); return 0; fail: - if (huc_fw->load_status == INTEL_UC_FIRMWARE_PENDING) - huc_fw->load_status = INTEL_UC_FIRMWARE_FAIL; + if (huc->fw.load_status == INTEL_UC_FIRMWARE_PENDING) + huc->fw.load_status = INTEL_UC_FIRMWARE_FAIL; DRM_ERROR("Failed to complete HuC uCode load with ret %d\n", err); @@ -266,25 +251,6 @@ fail: } /** - * intel_huc_fini() - clean up resources allocated for HuC - * @dev_priv: the drm_i915_private device - * - * Cleans up by releasing the huc firmware GEM obj. - */ -void intel_huc_fini(struct drm_i915_private *dev_priv) -{ - struct intel_uc_fw *huc_fw = &dev_priv->huc.fw; - - mutex_lock(&dev_priv->drm.struct_mutex); - if (huc_fw->obj) - i915_gem_object_put(huc_fw->obj); - huc_fw->obj = NULL; - mutex_unlock(&dev_priv->drm.struct_mutex); - - huc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE; -} - -/** * intel_guc_auth_huc() - authenticate ucode * @dev_priv: the drm_i915_device * |
