drm/i915/huc: define gsc-compatible HuC fw for DG2

The fw name is different and we need to record the fact that the blob is
gsc-loaded, so add a new macro to help.

Note: A-step DG2 G10 does not support HuC loading via GSC and would
require a separate firmware to be loaded the legacy way, but that's
not a production stepping so we're not going to bother.

v2: rebase on new fw fetch logic
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tony Ye <tony.ye@intel.com>
Acked-by: Tony Ye <tony.ye@intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220928004145.745803-15-daniele.ceraolospurio@intel.com

drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c

@@ -93,7 +93,8 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
 	fw_def(BROXTON,      0, guc_mmp(bxt,  70, 1, 1)) \
 	fw_def(SKYLAKE,      0, guc_mmp(skl,  70, 1, 1))
 
-#define INTEL_HUC_FIRMWARE_DEFS(fw_def, huc_raw, huc_mmp) \
+#define INTEL_HUC_FIRMWARE_DEFS(fw_def, huc_raw, huc_mmp, huc_gsc) \
+	fw_def(DG2,          0, huc_gsc(dg2)) \
 	fw_def(ALDERLAKE_P,  0, huc_raw(tgl)) \
 	fw_def(ALDERLAKE_P,  0, huc_mmp(tgl,  7, 9, 3)) \
 	fw_def(ALDERLAKE_S,  0, huc_raw(tgl)) \
@@ -141,6 +142,9 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
 #define MAKE_HUC_FW_PATH_BLANK(prefix_) \
 	__MAKE_UC_FW_PATH_BLANK(prefix_, "_huc")
 
+#define MAKE_HUC_FW_PATH_GSC(prefix_) \
+	__MAKE_UC_FW_PATH_BLANK(prefix_, "_huc_gsc")
+
 #define MAKE_HUC_FW_PATH_MMP(prefix_, major_, minor_, patch_) \
 	__MAKE_UC_FW_PATH_MMP(prefix_, "_huc_", major_, minor_, patch_)
 
@@ -153,7 +157,7 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw,
 	MODULE_FIRMWARE(uc_);
 
 INTEL_GUC_FIRMWARE_DEFS(INTEL_UC_MODULE_FW, MAKE_GUC_FW_PATH_MAJOR, MAKE_GUC_FW_PATH_MMP)
-INTEL_HUC_FIRMWARE_DEFS(INTEL_UC_MODULE_FW, MAKE_HUC_FW_PATH_BLANK, MAKE_HUC_FW_PATH_MMP)
+INTEL_HUC_FIRMWARE_DEFS(INTEL_UC_MODULE_FW, MAKE_HUC_FW_PATH_BLANK, MAKE_HUC_FW_PATH_MMP, MAKE_HUC_FW_PATH_GSC)
 
 /*
  * The next expansion of the table macros (in __uc_fw_auto_select below) provides
@@ -168,6 +172,7 @@ struct __packed uc_fw_blob {
 	u8 major;
 	u8 minor;
 	u8 patch;
+	bool loaded_via_gsc;
 };
 
 #define UC_FW_BLOB_BASE(major_, minor_, patch_, path_) \
@@ -176,16 +181,16 @@ struct __packed uc_fw_blob {
 	.patch = patch_, \
 	.path = path_,
 
-#define UC_FW_BLOB_NEW(major_, minor_, patch_, path_) \
+#define UC_FW_BLOB_NEW(major_, minor_, patch_, gsc_, path_) \
 	{ UC_FW_BLOB_BASE(major_, minor_, patch_, path_) \
-	  .legacy = false }
+	  .legacy = false, .loaded_via_gsc = gsc_ }
 
 #define UC_FW_BLOB_OLD(major_, minor_, patch_, path_) \
 	{ UC_FW_BLOB_BASE(major_, minor_, patch_, path_) \
 	  .legacy = true }
 
 #define GUC_FW_BLOB(prefix_, major_, minor_) \
-	UC_FW_BLOB_NEW(major_, minor_, 0, \
+	UC_FW_BLOB_NEW(major_, minor_, 0, false, \
 		       MAKE_GUC_FW_PATH_MAJOR(prefix_, major_, minor_))
 
 #define GUC_FW_BLOB_MMP(prefix_, major_, minor_, patch_) \
@@ -193,12 +198,15 @@ struct __packed uc_fw_blob {
 		       MAKE_GUC_FW_PATH_MMP(prefix_, major_, minor_, patch_))
 
 #define HUC_FW_BLOB(prefix_) \
-	UC_FW_BLOB_NEW(0, 0, 0, MAKE_HUC_FW_PATH_BLANK(prefix_))
+	UC_FW_BLOB_NEW(0, 0, 0, false, MAKE_HUC_FW_PATH_BLANK(prefix_))
 
 #define HUC_FW_BLOB_MMP(prefix_, major_, minor_, patch_) \
 	UC_FW_BLOB_OLD(major_, minor_, patch_, \
 		       MAKE_HUC_FW_PATH_MMP(prefix_, major_, minor_, patch_))
 
+#define HUC_FW_BLOB_GSC(prefix_) \
+	UC_FW_BLOB_NEW(0, 0, 0, true, MAKE_HUC_FW_PATH_GSC(prefix_))
+
 struct __packed uc_fw_platform_requirement {
 	enum intel_platform p;
 	u8 rev; /* first platform rev using this FW */
@@ -224,7 +232,7 @@ __uc_fw_auto_select(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
 		INTEL_GUC_FIRMWARE_DEFS(MAKE_FW_LIST, GUC_FW_BLOB, GUC_FW_BLOB_MMP)
 	};
 	static const struct uc_fw_platform_requirement blobs_huc[] = {
-		INTEL_HUC_FIRMWARE_DEFS(MAKE_FW_LIST, HUC_FW_BLOB, HUC_FW_BLOB_MMP)
+		INTEL_HUC_FIRMWARE_DEFS(MAKE_FW_LIST, HUC_FW_BLOB, HUC_FW_BLOB_MMP, HUC_FW_BLOB_GSC)
 	};
 	static const struct fw_blobs_by_type blobs_all[INTEL_UC_FW_NUM_TYPES] = {
 		[INTEL_UC_FW_TYPE_GUC] = { blobs_guc, ARRAY_SIZE(blobs_guc) },
@@ -272,6 +280,7 @@ __uc_fw_auto_select(struct drm_i915_private *i915, struct intel_uc_fw *uc_fw)
 		uc_fw->file_wanted.path = blob->path;
 		uc_fw->file_wanted.major_ver = blob->major;
 		uc_fw->file_wanted.minor_ver = blob->minor;
+		uc_fw->loaded_via_gsc = blob->loaded_via_gsc;
 		found = true;
 		break;
 	}