diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2024-03-13 23:11:10 +0100 |
|---|---|---|
| committer | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2024-03-27 20:19:25 +0100 |
| commit | 68fac8ab0f9d51abd93edee38e8dadf2705c0b4f (patch) | |
| tree | ff5a3df81c9db9a76afd18f275489406acc46080 /drivers/gpu/drm/xe/xe_guc_id_mgr.h | |
| parent | f88beeed82700697745aa3290f5a12c7b1b1bbe7 (diff) | |
drm/xe/guc: Introduce GuC context ID Manager
While we are already managing GuC IDs directly in GuC submission
code, using bitmap() for MLRC and ida() for SLRC, this code can't
be easily extended to meet additional requirements for SR-IOV use
cases, like limited number of IDs available on VFs, or ID range
reservation for provisioning VFs by the PF.
Add a separate component for managing GuC IDs, that will replace
existing ID management. Start with bitmap() based implementation
that could be optimized later based on perf data.
Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240313221112.1089-3-michal.wajdeczko@intel.com
Diffstat (limited to 'drivers/gpu/drm/xe/xe_guc_id_mgr.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_id_mgr.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_guc_id_mgr.h b/drivers/gpu/drm/xe/xe_guc_id_mgr.h new file mode 100644 index 000000000000..368f8c80e4c7 --- /dev/null +++ b/drivers/gpu/drm/xe/xe_guc_id_mgr.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2024 Intel Corporation + */ + +#ifndef _XE_GUC_ID_MGR_H_ +#define _XE_GUC_ID_MGR_H_ + +struct drm_printer; +struct xe_guc_id_mgr; + +int xe_guc_id_mgr_init(struct xe_guc_id_mgr *idm, unsigned int count); + +int xe_guc_id_mgr_reserve_locked(struct xe_guc_id_mgr *idm, unsigned int count); +void xe_guc_id_mgr_release_locked(struct xe_guc_id_mgr *idm, unsigned int id, unsigned int count); + +int xe_guc_id_mgr_reserve(struct xe_guc_id_mgr *idm, unsigned int count, unsigned int retain); +void xe_guc_id_mgr_release(struct xe_guc_id_mgr *idm, unsigned int start, unsigned int count); + +void xe_guc_id_mgr_print(struct xe_guc_id_mgr *idm, struct drm_printer *p, int indent); + +#endif |