diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2024-04-23 20:04:35 +0200 |
|---|---|---|
| committer | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2024-04-24 15:10:42 +0200 |
| commit | 98e62805921cebcd2fcac3692037ca2ebef63b4a (patch) | |
| tree | 1aa5f8c704a8529a0580c183006ebca93a8f97ce /drivers/gpu/drm/xe/xe_gt_sriov_pf_service.h | |
| parent | dec793860d5137c58c633712554abfed71642a88 (diff) | |
drm/xe/pf: Add SR-IOV GuC Relay PF services
We already have mechanism that allows a VF driver to communicate
with the PF driver, now add PF side handlers for VF2PF requests
defined in version 1.0 of VF/PF GuC Relay ABI specification.
The VF2PF_HANDSHAKE request must be used by the VF driver to
negotiate the ABI version prior to sending any other request.
We will reset any negotiated version later during FLR.
The outcome of the VF2PF_QUERY_RUNTIME requests depends on actual
platform, for legacy platforms used as SDV is provided as-is, for
latest platforms it is preliminary, and might be changed.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240423180436.2089-5-michal.wajdeczko@intel.com
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_sriov_pf_service.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_sriov_pf_service.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_service.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_service.h new file mode 100644 index 000000000000..56aaadf0360d --- /dev/null +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_service.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2023-2024 Intel Corporation + */ + +#ifndef _XE_GT_SRIOV_PF_SERVICE_H_ +#define _XE_GT_SRIOV_PF_SERVICE_H_ + +#include <linux/errno.h> +#include <linux/types.h> + +struct drm_printer; +struct xe_gt; + +int xe_gt_sriov_pf_service_init(struct xe_gt *gt); +void xe_gt_sriov_pf_service_update(struct xe_gt *gt); +void xe_gt_sriov_pf_service_reset(struct xe_gt *gt, unsigned int vfid); + +int xe_gt_sriov_pf_service_print_version(struct xe_gt *gt, struct drm_printer *p); +int xe_gt_sriov_pf_service_print_runtime(struct xe_gt *gt, struct drm_printer *p); + +#ifdef CONFIG_PCI_IOV +int xe_gt_sriov_pf_service_process_request(struct xe_gt *gt, u32 origin, + const u32 *msg, u32 msg_len, + u32 *response, u32 resp_size); +#else +static inline int +xe_gt_sriov_pf_service_process_request(struct xe_gt *gt, u32 origin, + const u32 *msg, u32 msg_len, + u32 *response, u32 resp_size) +{ + return -EPROTO; +} +#endif + +#endif |