drm/xe/guc: Add PF2GUC_SAVE_RESTORE_VF to ABI

In upcoming patches we will add support to the PF driver to save
and restore a VF state maintained by the GuC to allow VF migration.
Add necessary H2G definitions to our GuC firmware ABI header.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Tomasz Lis <tomasz.lis@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240912203817.1880-3-michal.wajdeczko@intel.com

diff --git a/drivers/gpu/drm/xe/abi/guc_actions_sriov_abi.h b/drivers/gpu/drm/xe/abi/guc_actions_sriov_abi.h
index 181180f..b6a1852 100644 (file)
--- a/drivers/gpu/drm/xe/abi/guc_actions_sriov_abi.h
+++ b/drivers/gpu/drm/xe/abi/guc_actions_sriov_abi.h
@@ -557,4 +557,65 @@
 #define VF2GUC_QUERY_SINGLE_KLV_RESPONSE_MSG_2_VALUE64 GUC_HXG_REQUEST_MSG_n_DATAn
 #define VF2GUC_QUERY_SINGLE_KLV_RESPONSE_MSG_3_VALUE96 GUC_HXG_REQUEST_MSG_n_DATAn
 
+/**
+ * DOC: PF2GUC_SAVE_RESTORE_VF
+ *
+ * This message is used by the PF to migrate VF info state maintained by the GuC.
+ *
+ * This message must be sent as `CTB HXG Message`_.
+ *
+ * Available since GuC version 70.25.0
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_HOST_                                |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 27:16 | DATA0 = **OPCODE** - operation to take:                      |
+ *  |   |       |                                                              |
+ *  |   |       |   - _`GUC_PF_OPCODE_VF_SAVE` = 0                             |
+ *  |   |       |   - _`GUC_PF_OPCODE_VF_RESTORE` = 1                          |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  15:0 | ACTION = _`GUC_ACTION_PF2GUC_SAVE_RESTORE_VF` = 0x550B       |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 1 |  31:0 | **VFID** - VF identifier                                     |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 2 |  31:0 | **ADDR_LO** - lower 32-bits of GGTT offset to the buffer     |
+ *  |   |       | where the VF info will be save to or restored from.          |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 3 |  31:0 | **ADDR_HI** - upper 32-bits of GGTT offset to the buffer     |
+ *  |   |       | where the VF info will be save to or restored from.          |
+ *  +---+-------+--------------------------------------------------------------+
+ *  | 4 |  27:0 | **SIZE** - size of the buffer (in dwords)                    |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 31:28 | MBZ                                                          |
+ *  +---+-------+--------------------------------------------------------------+
+ *
+ *  +---+-------+--------------------------------------------------------------+
+ *  |   | Bits  | Description                                                  |
+ *  +===+=======+==============================================================+
+ *  | 0 |    31 | ORIGIN = GUC_HXG_ORIGIN_GUC_                                 |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_                        |
+ *  |   +-------+--------------------------------------------------------------+
+ *  |   |  27:0 | DATA0 = **USED** - size of used buffer space (in dwords)     |
+ *  +---+-------+--------------------------------------------------------------+
+ */
+#define GUC_ACTION_PF2GUC_SAVE_RESTORE_VF              0x550Bu
+
+#define PF2GUC_SAVE_RESTORE_VF_REQUEST_MSG_LEN         (GUC_HXG_EVENT_MSG_MIN_LEN + 4u)
+#define PF2GUC_SAVE_RESTORE_VF_REQUEST_MSG_0_OPCODE    GUC_HXG_EVENT_MSG_0_DATA0
+#define   GUC_PF_OPCODE_VF_SAVE                                0u
+#define   GUC_PF_OPCODE_VF_RESTORE                     1u
+#define PF2GUC_SAVE_RESTORE_VF_REQUEST_MSG_1_VFID      GUC_HXG_EVENT_MSG_n_DATAn
+#define PF2GUC_SAVE_RESTORE_VF_REQUEST_MSG_2_ADDR_LO   GUC_HXG_EVENT_MSG_n_DATAn
+#define PF2GUC_SAVE_RESTORE_VF_REQUEST_MSG_3_ADDR_HI   GUC_HXG_EVENT_MSG_n_DATAn
+#define PF2GUC_SAVE_RESTORE_VF_REQUEST_MSG_4_SIZE      (0xfffffffu << 0)
+#define PF2GUC_SAVE_RESTORE_VF_REQUEST_MSG_4_MBZ       (0xfu << 28)
+
+#define PF2GUC_SAVE_RESTORE_VF_RESPONSE_MSG_LEN                GUC_HXG_RESPONSE_MSG_MIN_LEN
+#define PF2GUC_SAVE_RESTORE_VF_RESPONSE_MSG_0_USED     GUC_HXG_RESPONSE_MSG_0_DATA0
+
 #endif