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drm/xe/guc: Add VF2GUC_VF_RESET to ABI

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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 <piotr.piorkowski@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240516110546.2216-3-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2024-05-16 13:05:42 +02:00
parent e158cf9361
commit 769551c45c
1 changed files with 37 additions and 0 deletions
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37
drivers/gpu/drm/xe/abi/guc_actions_sriov_abi.h
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@ -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