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drm/xe/pf: Add helper to retrieve VF's LMEM object

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Instead of accessing VF's lmem_obj directly, introduce a helper function
to make the access more convenient.

Signed-off-by: Lukasz Laguna <lukasz.laguna@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251112132220.516975-21-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
This commit is contained in:
Lukasz Laguna
2025-11-12 14:22:16 +01:00
committed by Michał Winiarski
parent b7c1b990f7
commit 274186fab3
2 changed files with 27 additions and 0 deletions
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26
drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
View File

@@ -1692,6 +1692,32 @@ int xe_gt_sriov_pf_config_bulk_set_lmem(struct xe_gt *gt, unsigned int vfid,
"LMEM", n, err);
}
static struct xe_bo *pf_get_vf_config_lmem_obj(struct xe_gt *gt, unsigned int vfid)
{
struct xe_gt_sriov_config *config = pf_pick_vf_config(gt, vfid);
return config->lmem_obj;
}
/**
* xe_gt_sriov_pf_config_get_lmem_obj() - Take a reference to the struct &xe_bo backing VF LMEM.
* @gt: the &xe_gt
* @vfid: the VF identifier (can't be 0)
*
* This function can only be called on PF.
* The caller is responsible for calling xe_bo_put() on the returned object.
*
* Return: pointer to struct &xe_bo backing VF LMEM (if any).
*/
struct xe_bo *xe_gt_sriov_pf_config_get_lmem_obj(struct xe_gt *gt, unsigned int vfid)
{
xe_gt_assert(gt, vfid);
guard(mutex)(xe_gt_sriov_pf_master_mutex(gt));
return xe_bo_get(pf_get_vf_config_lmem_obj(gt, vfid));
}
static u64 pf_query_free_lmem(struct xe_gt *gt)
{
struct xe_tile *tile = gt->tile;

1
drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h
View File

@@ -36,6 +36,7 @@ int xe_gt_sriov_pf_config_set_lmem(struct xe_gt *gt, unsigned int vfid, u64 size
int xe_gt_sriov_pf_config_set_fair_lmem(struct xe_gt *gt, unsigned int vfid, unsigned int num_vfs);
int xe_gt_sriov_pf_config_bulk_set_lmem(struct xe_gt *gt, unsigned int vfid, unsigned int num_vfs,
u64 size);
struct xe_bo *xe_gt_sriov_pf_config_get_lmem_obj(struct xe_gt *gt, unsigned int vfid);
u32 xe_gt_sriov_pf_config_get_exec_quantum(struct xe_gt *gt, unsigned int vfid);
int xe_gt_sriov_pf_config_set_exec_quantum(struct xe_gt *gt, unsigned int vfid, u32 exec_quantum);