[PATCH v3 2/4] drm/xe/pf: Add helper to retrieve VF's LMEM object

[Lukasz Laguna]

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 at intel.com>
---
 drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c | 22 ++++++++++++++++++++++
 drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h |  1 +
 2 files changed, 23 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 192643d63d22..05b197dc2f21 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
@@ -1517,6 +1517,28 @@ 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;
+}
+
+struct xe_bo *xe_gt_sriov_pf_config_get_lmem_obj(struct xe_gt *gt, unsigned int vfid)
+{
+
+	struct xe_bo *lmem_obj;
+
+	xe_gt_assert(gt, vfid);
+
+	mutex_lock(xe_gt_sriov_pf_master_mutex(gt));
+	lmem_obj = pf_get_vf_config_lmem_obj(gt, vfid);
+	mutex_unlock(xe_gt_sriov_pf_master_mutex(gt));
+
+	return lmem_obj;
+
+}
+
 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 0c55aa40a1a7..b4845fb1fcd9 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);
-- 
2.40.0