diff options
| author | Lucas De Marchi <lucas.demarchi@intel.com> | 2024-05-17 23:43:08 +0300 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2024-05-21 16:33:40 +0300 |
| commit | baa14865529bf1f3c12dc6145bd9109ef289e038 (patch) | |
| tree | a31806ad3cafd98c7809377013836900d746fd2c /drivers/gpu/drm/xe/xe_gt.h | |
| parent | 6109f24f87d75122cf6de50901115cbee4285ce2 (diff) | |
| download | linux-baa14865529bf1f3c12dc6145bd9109ef289e038.tar.xz | |
drm/xe: Cache data about user-visible engines
gt->info.engine_mask used to indicate the available engines, but that
is not always true anymore: some engines are reserved to kernel and some
may be exposed as a single engine (e.g. with ccs_mode).
Runtime changes only happen when no clients exist, so it's safe to cache
the list of engines in the gt and update that when it's needed. This
will help implementing per client engine utilization so this (mostly
constant) information doesn't need to be re-calculated on every query.
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517204310.88854-7-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt.h b/drivers/gpu/drm/xe/xe_gt.h index 8474c50b1b30..1d010bf4a756 100644 --- a/drivers/gpu/drm/xe/xe_gt.h +++ b/drivers/gpu/drm/xe/xe_gt.h @@ -38,6 +38,19 @@ int xe_gt_init_hwconfig(struct xe_gt *gt); int xe_gt_init_early(struct xe_gt *gt); int xe_gt_init(struct xe_gt *gt); int xe_gt_record_default_lrcs(struct xe_gt *gt); + +/** + * xe_gt_record_user_engines - save data related to engines available to + * usersapce + * @gt: GT structure + * + * Walk the available HW engines from gt->info.engine_mask and calculate data + * related to those engines that may be used by userspace. To be used whenever + * available engines change in runtime (e.g. with ccs_mode) or during + * initialization + */ +void xe_gt_record_user_engines(struct xe_gt *gt); + void xe_gt_suspend_prepare(struct xe_gt *gt); int xe_gt_suspend(struct xe_gt *gt); int xe_gt_resume(struct xe_gt *gt); |