diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_huc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_huc.c | 53 |
1 files changed, 25 insertions, 28 deletions
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c index 6145fa0d6773..4b4cf56d29ad 100644 --- a/drivers/gpu/drm/i915/intel_huc.c +++ b/drivers/gpu/drm/i915/intel_huc.c @@ -21,9 +21,11 @@ * IN THE SOFTWARE. * */ -#include <linux/firmware.h> + +#include <linux/types.h> + +#include "intel_huc.h" #include "i915_drv.h" -#include "intel_uc.h" /** * DOC: HuC Firmware @@ -150,13 +152,10 @@ void intel_huc_select_fw(struct intel_huc *huc) { 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; + intel_uc_fw_init(&huc->fw, INTEL_UC_FW_TYPE_HUC); - if (i915.huc_firmware_path) { - huc->fw.path = i915.huc_firmware_path; + if (i915_modparams.huc_firmware_path) { + huc->fw.path = i915_modparams.huc_firmware_path; huc->fw.major_ver_wanted = 0; huc->fw.minor_ver_wanted = 0; } else if (IS_SKYLAKE(dev_priv)) { @@ -225,19 +224,22 @@ void intel_huc_init_hw(struct intel_huc *huc) } /** - * intel_guc_auth_huc() - authenticate ucode - * @dev_priv: the drm_i915_device + * intel_huc_auth() - Authenticate HuC uCode + * @huc: intel_huc structure + * + * Called after HuC and GuC firmware loading during intel_uc_init_hw(). * - * Triggers a HuC fw authentication request to the GuC via intel_guc_action_ - * authenticate_huc interface. + * This function pins HuC firmware image object into GGTT. + * Then it invokes GuC action to authenticate passing the offset to RSA + * signature through intel_guc_auth_huc(). It then waits for 50ms for + * firmware verification ACK and unpins the object. */ -void intel_guc_auth_huc(struct drm_i915_private *dev_priv) +void intel_huc_auth(struct intel_huc *huc) { - struct intel_guc *guc = &dev_priv->guc; - struct intel_huc *huc = &dev_priv->huc; + struct drm_i915_private *i915 = huc_to_i915(huc); + struct intel_guc *guc = &i915->guc; struct i915_vma *vma; int ret; - u32 data[2]; if (huc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS) return; @@ -250,23 +252,19 @@ void intel_guc_auth_huc(struct drm_i915_private *dev_priv) return; } - /* Specify auth action and where public signature is. */ - data[0] = INTEL_GUC_ACTION_AUTHENTICATE_HUC; - data[1] = guc_ggtt_offset(vma) + huc->fw.rsa_offset; - - ret = intel_guc_send(guc, data, ARRAY_SIZE(data)); + ret = intel_guc_auth_huc(guc, + guc_ggtt_offset(vma) + huc->fw.rsa_offset); if (ret) { DRM_ERROR("HuC: GuC did not ack Auth request %d\n", ret); goto out; } /* Check authentication status, it should be done by now */ - ret = intel_wait_for_register(dev_priv, - HUC_STATUS2, - HUC_FW_VERIFIED, - HUC_FW_VERIFIED, - 50); - + ret = intel_wait_for_register(i915, + HUC_STATUS2, + HUC_FW_VERIFIED, + HUC_FW_VERIFIED, + 50); if (ret) { DRM_ERROR("HuC: Authentication failed %d\n", ret); goto out; @@ -275,4 +273,3 @@ void intel_guc_auth_huc(struct drm_i915_private *dev_priv) out: i915_vma_unpin(vma); } - |