drm/xe/guc: Add VF2GUC_VF_RESET to ABI

The version negotiation between the VF driver and the GuC firmware must start with explicit soft reset of the GuC state initiated by the VF driver. Add VF2GUC action definitions to the ABI header. Reviewed-by: Piotr Piórkowski <[email protected]> Signed-off-by: Michal Wajdeczko <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
wafgo · May 16, 2024 · 769551c · 769551c
1 parent e158cf9
commit 769551c
Showing 1 changed file with 37 additions and 0 deletions.
diff --git a/drivers/gpu/drm/xe/abi/guc_actions_sriov_abi.h b/drivers/gpu/drm/xe/abi/guc_actions_sriov_abi.h
@@ -464,4 +464,41 @@
 #define   GUC_PF_TRIGGER_VF_FLR_START			4u
 #define   GUC_PF_TRIGGER_VF_FLR_FINISH			5u
 
+/**
+ * DOC: VF2GUC_VF_RESET
+ *
+ * This action is used by VF to reset GuC's VF state.
+ *
+ * This message must be sent as `MMIO HXG Message`_.
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | DATA0 = MBZ                                                  |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | ACTION = _`GUC_ACTION_VF2GUC_VF_RESET` = 0x5507              |
+ *  +---+-------+--------------------------------------------------------------+
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | DATA0 = MBZ                                                  |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+#define GUC_ACTION_VF2GUC_VF_RESET			0x5507u
+
+#define VF2GUC_VF_RESET_REQUEST_MSG_LEN			GUC_HXG_REQUEST_MSG_MIN_LEN
+#define VF2GUC_VF_RESET_REQUEST_MSG_0_MBZ		GUC_HXG_REQUEST_MSG_0_DATA0
+
+#define VF2GUC_VF_RESET_RESPONSE_MSG_LEN		GUC_HXG_RESPONSE_MSG_MIN_LEN
+#define VF2GUC_VF_RESET_RESPONSE_MSG_0_MBZ		GUC_HXG_RESPONSE_MSG_0_DATA0
+
 #endif