Commit 274186fa authored by Lukasz Laguna's avatar Lukasz Laguna Committed by Michał Winiarski
Browse files

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



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

Signed-off-by: default avatarLukasz Laguna <lukasz.laguna@intel.com>
Reviewed-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20251112132220.516975-21-michal.winiarski@intel.com


Signed-off-by: default avatarMichał Winiarski <michal.winiarski@intel.com>
parent b7c1b990

drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c

+26 −0
Original line number Diff line number Diff line
@@ -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;

drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h

+1 −0
Original line number Diff line number Diff line
@@ -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);