Prepared intel_auth_huc to separate HuC specific functionality
from GuC send action. Created new header intel_huc.h to group
HuC specific declarations.
v2: Changed argument preparation for AUTHENTICATE_HUC.
s/intel_auth_huc/intel_huc_auth. Deferred creation of intel_huc.h
to later patch.
v3: Rebase as intel_guc.h is removed. Added param description to
intel_huc_auth. (Michal)
v4: Rebase as intel_guc.h is added again. :)
v5: Rebase w.r.t removal of GuC code restructuring.
Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_huc.c | 22 +++++++---------------
drivers/gpu/drm/i915/intel_uc.c | 20 +++++++++++++++++++-
drivers/gpu/drm/i915/intel_uc.h | 3 ++-
3 files changed, 28 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c
index 6145fa0..d3da4d3 100644
--- a/drivers/gpu/drm/i915/intel_huc.c
+++ b/drivers/gpu/drm/i915/intel_huc.c
@@ -225,19 +225,16 @@ void intel_huc_init_hw(struct intel_huc *huc)
}
/**
- * intel_guc_auth_huc() - authenticate ucode
- * @dev_priv: the drm_i915_device
- *
- * Triggers a HuC fw authentication request to the GuC via intel_guc_action_
- * authenticate_huc interface.
+ * intel_huc_auth() - authenticate ucode
+ * @huc: intel_huc structure
*/
-void intel_guc_auth_huc(struct drm_i915_private *dev_priv)
+void intel_huc_auth(struct intel_huc *huc)
{
+ struct drm_i915_private *dev_priv = huc_to_i915(huc);
struct intel_guc *guc = &dev_priv->guc;
- struct intel_huc *huc = &dev_priv->huc;
struct i915_vma *vma;
+ u32 offset;
int ret;
- u32 data[2];
if (huc->fw.load_status != INTEL_UC_FIRMWARE_SUCCESS)
return;
@@ -250,11 +247,8 @@ 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));
+ offset = guc_ggtt_offset(vma) + huc->fw.rsa_offset;
+ ret = intel_guc_auth_huc(guc, offset);
if (ret) {
DRM_ERROR("HuC: GuC did not ack Auth request %d\n", ret);
goto out;
@@ -266,7 +260,6 @@ void intel_guc_auth_huc(struct drm_i915_private *dev_priv)
HUC_FW_VERIFIED,
HUC_FW_VERIFIED,
50);
-
if (ret) {
DRM_ERROR("HuC: Authentication failed %d\n", ret);
goto out;
@@ -275,4 +268,3 @@ void intel_guc_auth_huc(struct drm_i915_private *dev_priv)
out:
i915_vma_unpin(vma);
}
-
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 4efe67e..68edea4 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -328,6 +328,24 @@ static void guc_disable_communication(struct intel_guc *guc)
guc->send = intel_guc_send_nop;
}
+/**
+ * intel_guc_auth_huc() - authenticate ucode
+ * @guc: struct intel_guc*
+ * @offset: rsa offset w.r.t ggtt base of huc vma
+ *
+ * triggers a huc fw authentication request to the guc via intel_guc_send
+ * authenticate_huc interface.
+ */
+int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset)
+{
+ u32 action[] = {
+ INTEL_GUC_ACTION_AUTHENTICATE_HUC,
+ rsa_offset
+ };
+
+ return intel_guc_send(guc, action, ARRAY_SIZE(action));
+}
+
int intel_uc_init_hw(struct drm_i915_private *dev_priv)
{
struct intel_guc *guc = &dev_priv->guc;
@@ -390,7 +408,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
if (ret)
goto err_log_capture;
- intel_guc_auth_huc(dev_priv);
+ intel_huc_auth(&dev_priv->huc);
if (i915.enable_guc_submission) {
if (i915.guc_log_level >= 0)
gen9_enable_guc_interrupts(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index c6038de..838a364 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -216,6 +216,7 @@ struct intel_huc {
int intel_guc_sample_forcewake(struct intel_guc *guc);
int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len);
int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);
+int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
static inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len)
{
@@ -259,6 +260,6 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma)
/* intel_huc.c */
void intel_huc_select_fw(struct intel_huc *huc);
void intel_huc_init_hw(struct intel_huc *huc);
-void intel_guc_auth_huc(struct drm_i915_private *dev_priv);
+void intel_huc_auth(struct intel_huc *huc);
#endif
--
1.9.1
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