From: Lukasz Laguna <[email protected]> Instead of accessing VF's lmem_obj directly, introduce a helper function to make the access more convenient.
Signed-off-by: Lukasz Laguna <[email protected]> Signed-off-by: Michał Winiarski <[email protected]> Reviewed-by: Michal Wajdeczko <[email protected]> --- drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c | 26 ++++++++++++++++++++++ drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h | 1 + 2 files changed, 27 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c index 2786f516a9440..79e15bc009337 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c @@ -1654,6 +1654,32 @@ 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; diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h index 66223c0e948db..4975730423d72 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h @@ -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); -- 2.51.2
