Commit 2e2dab20 authored by Satyanarayana K V P's avatar Satyanarayana K V P Committed by Michal Wajdeczko
Browse files

drm/xe/vf: Enable VF migration only on supported GuC versions 



Enable VF migration starting with GuC 70.54.0 (compatibility version
1.27.0) which supports additional VF2GUC_RESFIX_START message required
to handle migration recovery in a more robust way.

Signed-off-by: default avatarSatyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Tomasz Lis <tomasz.lis@intel.com>
Reviewed-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251201095011.21453-7-satyanarayana.k.v.p@intel.com
parent aa8225d4

drivers/gpu/drm/xe/xe_sriov_vf.c

+21 −1
Original line number Diff line number Diff line
@@ -170,6 +170,26 @@ void xe_sriov_vf_init_early(struct xe_device *xe) 
	vf_migration_init_early(xe);

}



static bool vf_migration_init_late(struct xe_device *xe)

{

	struct xe_gt *gt = xe_root_mmio_gt(xe);

	struct xe_uc_fw_version guc_version;



	if (!xe_sriov_vf_migration_supported(xe))

		return 0;



	xe_gt_sriov_vf_guc_versions(gt, NULL, &guc_version);

	if (MAKE_GUC_VER_STRUCT(guc_version) < MAKE_GUC_VER(1, 27, 0)) {

		xe_sriov_vf_migration_disable(xe,

					      "requires GuC ABI >= 1.27.0, but only %u.%u.%u found",

					      guc_version.major, guc_version.minor,

					      guc_version.patch);

		return 0;

	}



	return xe_sriov_vf_ccs_init(xe);

}



/**

 * xe_sriov_vf_init_late() - SR-IOV VF late initialization functions.

 * @xe: the &xe_device to initialize
@@ -180,7 +200,7 @@ void xe_sriov_vf_init_early(struct xe_device *xe) 
 */

int xe_sriov_vf_init_late(struct xe_device *xe)

{

	return xe_sriov_vf_ccs_init(xe);

	return vf_migration_init_late(xe);

}



static int sa_info_vf_ccs(struct seq_file *m, void *data)