[PATCH 1/4] drm/gpuvm: Add a flags argument to drm_gpuvm_sm_map[_*]

[Asahi Lina]

drm_gpuva objects have a flags field. Currently, this can be managed by
drivers out-of-band, without any special handling in drm_gpuvm.

To be able to introduce flags that do affect the logic in the drm_gpuvm
core, we need to plumb it through the map calls. This will allow the
core to check the flags on map and alter the merge/split logic depending
on the requested flags and the flags of the existing drm_gpuva ranges
that are being split.

First, just add the argument to the API and do nothing with it.

Signed-off-by: Asahi Lina <lina@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/drm_gpuvm.c            | 6 ++++--
 drivers/gpu/drm/imagination/pvr_vm.c   | 3 ++-
 drivers/gpu/drm/nouveau/nouveau_uvmm.c | 3 ++-
 drivers/gpu/drm/panthor/panthor_mmu.c  | 3 ++-
 drivers/gpu/drm/xe/xe_vm.c             | 3 ++-
 include/drm/drm_gpuvm.h                | 6 ++++--
 6 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c
index f9eb56f24bef291e084a15d844d4ececda8412d9..9733460d737667035541b488657154afb56872e3 100644
--- a/drivers/gpu/drm/drm_gpuvm.c
+++ b/drivers/gpu/drm/drm_gpuvm.c
@@ -2333,7 +2333,8 @@ __drm_gpuvm_sm_unmap(struct drm_gpuvm *gpuvm,
 int
 drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, void *priv,
 		 u64 req_addr, u64 req_range,
-		 struct drm_gem_object *req_obj, u64 req_offset)
+		 struct drm_gem_object *req_obj, u64 req_offset,
+		 enum drm_gpuva_flags req_flags)
 {
 	const struct drm_gpuvm_ops *ops = gpuvm->ops;
 
@@ -2516,7 +2517,8 @@ static const struct drm_gpuvm_ops gpuvm_list_ops = {
 struct drm_gpuva_ops *
 drm_gpuvm_sm_map_ops_create(struct drm_gpuvm *gpuvm,
 			    u64 req_addr, u64 req_range,
-			    struct drm_gem_object *req_obj, u64 req_offset)
+			    struct drm_gem_object *req_obj, u64 req_offset,
+			    enum drm_gpuva_flags req_flags)
 {
 	struct drm_gpuva_ops *ops;
 	struct {
diff --git a/drivers/gpu/drm/imagination/pvr_vm.c b/drivers/gpu/drm/imagination/pvr_vm.c
index 363f885a709826efa3d45a906c5f65131f7ed7b9..c57c7adcbe987dfc559bc00fc24862f5d99bbc0e 100644
--- a/drivers/gpu/drm/imagination/pvr_vm.c
+++ b/drivers/gpu/drm/imagination/pvr_vm.c
@@ -190,7 +190,8 @@ static int pvr_vm_bind_op_exec(struct pvr_vm_bind_op *bind_op)
 					bind_op, bind_op->device_addr,
 					bind_op->size,
 					gem_from_pvr_gem(bind_op->pvr_obj),
-					bind_op->offset);
+					bind_op->offset,
+					0);
 
 	case PVR_VM_BIND_TYPE_UNMAP:
 		return drm_gpuvm_sm_unmap(&bind_op->vm_ctx->gpuvm_mgr,
diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
index 48f105239f42d8ffa3cefd253bd83d52dbb3255f..d548154c0a38c08c74cfbb9c66d703699d8d882b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
@@ -1304,7 +1304,8 @@ nouveau_uvmm_bind_job_submit(struct nouveau_job *job,
 							      op->va.addr,
 							      op->va.range,
 							      op->gem.obj,
-							      op->gem.offset);
+							      op->gem.offset,
+							      0);
 			if (IS_ERR(op->ops)) {
 				ret = PTR_ERR(op->ops);
 				goto unwind_continue;
diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/panthor/panthor_mmu.c
index a49132f3778b3a7a0855de37e4ab008e9476f740..ebfb399af8752afdd26c33723b8ac6f616d02fc5 100644
--- a/drivers/gpu/drm/panthor/panthor_mmu.c
+++ b/drivers/gpu/drm/panthor/panthor_mmu.c
@@ -2155,7 +2155,8 @@ panthor_vm_exec_op(struct panthor_vm *vm, struct panthor_vm_op_ctx *op,
 		}
 
 		ret = drm_gpuvm_sm_map(&vm->base, vm, op->va.addr, op->va.range,
-				       op->map.vm_bo->obj, op->map.bo_offset);
+				       op->map.vm_bo->obj, op->map.bo_offset,
+				       0);
 		break;
 
 	case DRM_PANTHOR_VM_BIND_OP_TYPE_UNMAP:
diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index c99380271de62f8659fdd909a5bd9980d09de4d9..2d1fde089c382c363e354200cfb0281869b97f56 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -1926,7 +1926,8 @@ vm_bind_ioctl_ops_create(struct xe_vm *vm, struct xe_bo *bo,
 	case DRM_XE_VM_BIND_OP_MAP:
 	case DRM_XE_VM_BIND_OP_MAP_USERPTR:
 		ops = drm_gpuvm_sm_map_ops_create(&vm->gpuvm, addr, range,
-						  obj, bo_offset_or_userptr);
+						  obj, bo_offset_or_userptr,
+						  0);
 		break;
 	case DRM_XE_VM_BIND_OP_UNMAP:
 		ops = drm_gpuvm_sm_unmap_ops_create(&vm->gpuvm, addr, range);
diff --git a/include/drm/drm_gpuvm.h b/include/drm/drm_gpuvm.h
index 00d4e43b76b6c12e10e422d250ab0ac1c9009bc5..cb045378803646a9645c002c57183c915d35befb 100644
--- a/include/drm/drm_gpuvm.h
+++ b/include/drm/drm_gpuvm.h
@@ -1056,7 +1056,8 @@ struct drm_gpuva_ops {
 struct drm_gpuva_ops *
 drm_gpuvm_sm_map_ops_create(struct drm_gpuvm *gpuvm,
 			    u64 addr, u64 range,
-			    struct drm_gem_object *obj, u64 offset);
+			    struct drm_gem_object *obj, u64 offset,
+			    enum drm_gpuva_flags flags);
 struct drm_gpuva_ops *
 drm_gpuvm_sm_unmap_ops_create(struct drm_gpuvm *gpuvm,
 			      u64 addr, u64 range);
@@ -1201,7 +1202,8 @@ struct drm_gpuvm_ops {
 
 int drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, void *priv,
 		     u64 addr, u64 range,
-		     struct drm_gem_object *obj, u64 offset);
+		     struct drm_gem_object *obj, u64 offset,
+		     enum drm_gpuva_flags flags);
 
 int drm_gpuvm_sm_unmap(struct drm_gpuvm *gpuvm, void *priv,
 		       u64 addr, u64 range);

-- 
2.47.1