[PATCH v8 01/24] drm/gpuvm: Pass map arguments through a struct
Boris Brezillon
boris.brezillon at collabora.com
Wed Aug 20 11:56:57 UTC 2025
On Tue, 19 Aug 2025 03:27:30 +0530
Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com> wrote:
> From: Boris Brezillon <boris.brezillon at collabora.com>
>
> We are about to pass more arguments to drm_gpuvm_sm_map[_ops_create](),
> so, before we do that, let's pass arguments through a struct instead
> of changing each call site every time a new optional argument is added.
>
> Cc: Danilo Krummrich <dakr at kernel.org>
> Cc: Brendan King <Brendan.King at imgtec.com>
> Cc: Matt Coster <matt.coster at imgtec.com>
> Cc: Boris Brezillon <bbrezillon at kernel.org>
> Cc: Caterina Shablia <caterina.shablia at collabora.com>
> Cc: Rob Clark <robin.clark at oss.qualcomm.com>
> Cc: Matthew Brost <matthew.brost at intel.com>
> Cc: <dri-devel at lists.freedesktop.org>
> Co-developed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com>
> Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com>
> Signed-off-by: Boris Brezillon <boris.brezillon at collabora.com>
> Acked-by: Danilo Krummrich <dakr at kernel.org>
> Reviewed-by: Matthew Brost <matthew.brost at intel.com>
> Reviewed-by: Rob Clark <robin.clark at oss.qualcomm.com>
> ---
> drivers/gpu/drm/drm_gpuvm.c | 74 +++++++++++---------------
> drivers/gpu/drm/imagination/pvr_vm.c | 15 ++++--
> drivers/gpu/drm/msm/msm_gem_vma.c | 27 +++++++---
> drivers/gpu/drm/nouveau/nouveau_uvmm.c | 11 ++--
> drivers/gpu/drm/panthor/panthor_mmu.c | 13 +++--
> drivers/gpu/drm/xe/xe_vm.c | 13 +++--
> include/drm/drm_gpuvm.h | 20 ++++---
> 7 files changed, 102 insertions(+), 71 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c
> index 74d949995a72..c0e6f9310514 100644
> --- a/drivers/gpu/drm/drm_gpuvm.c
> +++ b/drivers/gpu/drm/drm_gpuvm.c
> @@ -486,13 +486,18 @@
> * u64 addr, u64 range,
> * struct drm_gem_object *obj, u64 offset)
> * {
> + * struct drm_gpuvm_map_req map_req = {
> + * .map.va.addr = addr,
> + * .map.va.range = range,
> + * .map.gem.obj = obj,
> + * .map.gem.offset = offset,
> + * };
Nit: indentation is messed up here.
> * struct drm_gpuva_ops *ops;
> * struct drm_gpuva_op *op
> * struct drm_gpuvm_bo *vm_bo;
> *
> * driver_lock_va_space();
> - * ops = drm_gpuvm_sm_map_ops_create(gpuvm, addr, range,
> - * obj, offset);
> + * ops = drm_gpuvm_sm_map_ops_create(gpuvm, &map_req);
> * if (IS_ERR(ops))
> * return PTR_ERR(ops);
> *
> @@ -2054,16 +2059,15 @@ EXPORT_SYMBOL_GPL(drm_gpuva_unmap);
>
> static int
> op_map_cb(const struct drm_gpuvm_ops *fn, void *priv,
> - u64 addr, u64 range,
> - struct drm_gem_object *obj, u64 offset)
> + const struct drm_gpuvm_map_req *req)
> {
> struct drm_gpuva_op op = {};
>
> op.op = DRM_GPUVA_OP_MAP;
> - op.map.va.addr = addr;
> - op.map.va.range = range;
> - op.map.gem.obj = obj;
> - op.map.gem.offset = offset;
> + op.map.va.addr = req->map.va.addr;
> + op.map.va.range = req->map.va.range;
> + op.map.gem.obj = req->map.gem.obj;
> + op.map.gem.offset = req->map.gem.offset;
>
> return fn->sm_step_map(&op, priv);
> }
> @@ -2102,10 +2106,14 @@ op_unmap_cb(const struct drm_gpuvm_ops *fn, void *priv,
> static int
> __drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm,
> const struct drm_gpuvm_ops *ops, void *priv,
> - u64 req_addr, u64 req_range,
> - struct drm_gem_object *req_obj, u64 req_offset)
> + const struct drm_gpuvm_map_req *req)
> {
> + struct drm_gem_object *req_obj = req->map.gem.obj;
> struct drm_gpuva *va, *next;
> +
> + u64 req_offset = req->map.gem.offset;
> + u64 req_range = req->map.va.range;
> + u64 req_addr = req->map.va.addr;
> u64 req_end = req_addr + req_range;
> int ret;
>
> @@ -2236,9 +2244,7 @@ __drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm,
> }
> }
>
> - return op_map_cb(ops, priv,
> - req_addr, req_range,
> - req_obj, req_offset);
> + return op_map_cb(ops, priv, req);
> }
>
> static int
> @@ -2303,10 +2309,7 @@ __drm_gpuvm_sm_unmap(struct drm_gpuvm *gpuvm,
> * drm_gpuvm_sm_map() - calls the &drm_gpuva_op split/merge steps
> * @gpuvm: the &drm_gpuvm representing the GPU VA space
> * @priv: pointer to a driver private data structure
> - * @req_addr: the start address of the new mapping
> - * @req_range: the range of the new mapping
> - * @req_obj: the &drm_gem_object to map
> - * @req_offset: the offset within the &drm_gem_object
> + * @req: ptr to struct drm_gpuvm_map_req
> *
> * This function iterates the given range of the GPU VA space. It utilizes the
> * &drm_gpuvm_ops to call back into the driver providing the split and merge
> @@ -2333,8 +2336,7 @@ __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)
> + const struct drm_gpuvm_map_req *req)
> {
> const struct drm_gpuvm_ops *ops = gpuvm->ops;
>
> @@ -2343,9 +2345,7 @@ drm_gpuvm_sm_map(struct drm_gpuvm *gpuvm, void *priv,
> ops->sm_step_unmap)))
> return -EINVAL;
>
> - return __drm_gpuvm_sm_map(gpuvm, ops, priv,
> - req_addr, req_range,
> - req_obj, req_offset);
> + return __drm_gpuvm_sm_map(gpuvm, ops, priv, req);
> }
> EXPORT_SYMBOL_GPL(drm_gpuvm_sm_map);
>
> @@ -2421,10 +2421,7 @@ static const struct drm_gpuvm_ops lock_ops = {
> * @gpuvm: the &drm_gpuvm representing the GPU VA space
> * @exec: the &drm_exec locking context
> * @num_fences: for newly mapped objects, the # of fences to reserve
> - * @req_addr: the start address of the range to unmap
> - * @req_range: the range of the mappings to unmap
> - * @req_obj: the &drm_gem_object to map
> - * @req_offset: the offset within the &drm_gem_object
> + * @req: ptr to drm_gpuvm_map_req struct
> *
> * This function locks (drm_exec_lock_obj()) objects that will be unmapped/
> * remapped, and locks+prepares (drm_exec_prepare_object()) objects that
> @@ -2447,9 +2444,7 @@ static const struct drm_gpuvm_ops lock_ops = {
> * ret = drm_gpuvm_sm_unmap_exec_lock(gpuvm, &exec, op->addr, op->range);
> * break;
> * case DRIVER_OP_MAP:
> - * ret = drm_gpuvm_sm_map_exec_lock(gpuvm, &exec, num_fences,
> - * op->addr, op->range,
> - * obj, op->obj_offset);
> + * ret = drm_gpuvm_sm_map_exec_lock(gpuvm, &exec, num_fences, &req);
> * break;
> * }
> *
> @@ -2480,18 +2475,17 @@ static const struct drm_gpuvm_ops lock_ops = {
> int
> drm_gpuvm_sm_map_exec_lock(struct drm_gpuvm *gpuvm,
> struct drm_exec *exec, unsigned int num_fences,
> - u64 req_addr, u64 req_range,
> - struct drm_gem_object *req_obj, u64 req_offset)
> + struct drm_gpuvm_map_req *req)
> {
> + struct drm_gem_object *req_obj = req->map.gem.obj;
> +
> if (req_obj) {
> int ret = drm_exec_prepare_obj(exec, req_obj, num_fences);
> if (ret)
> return ret;
> }
>
> - return __drm_gpuvm_sm_map(gpuvm, &lock_ops, exec,
> - req_addr, req_range,
> - req_obj, req_offset);
> + return __drm_gpuvm_sm_map(gpuvm, &lock_ops, exec, req);
>
> }
> EXPORT_SYMBOL_GPL(drm_gpuvm_sm_map_exec_lock);
> @@ -2613,10 +2607,7 @@ static const struct drm_gpuvm_ops gpuvm_list_ops = {
> /**
> * drm_gpuvm_sm_map_ops_create() - creates the &drm_gpuva_ops to split and merge
> * @gpuvm: the &drm_gpuvm representing the GPU VA space
> - * @req_addr: the start address of the new mapping
> - * @req_range: the range of the new mapping
> - * @req_obj: the &drm_gem_object to map
> - * @req_offset: the offset within the &drm_gem_object
> + * @req: map request arguments
> *
> * This function creates a list of operations to perform splitting and merging
> * of existent mapping(s) with the newly requested one.
> @@ -2644,8 +2635,7 @@ 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)
> + const struct drm_gpuvm_map_req *req)
> {
> struct drm_gpuva_ops *ops;
> struct {
> @@ -2663,9 +2653,7 @@ drm_gpuvm_sm_map_ops_create(struct drm_gpuvm *gpuvm,
> args.vm = gpuvm;
> args.ops = ops;
>
> - ret = __drm_gpuvm_sm_map(gpuvm, &gpuvm_list_ops, &args,
> - req_addr, req_range,
> - req_obj, req_offset);
> + ret = __drm_gpuvm_sm_map(gpuvm, &gpuvm_list_ops, &args, req);
> if (ret)
> goto err_free_ops;
>
> diff --git a/drivers/gpu/drm/imagination/pvr_vm.c b/drivers/gpu/drm/imagination/pvr_vm.c
> index 2896fa7501b1..3d97990170bf 100644
> --- a/drivers/gpu/drm/imagination/pvr_vm.c
> +++ b/drivers/gpu/drm/imagination/pvr_vm.c
> @@ -185,12 +185,17 @@ struct pvr_vm_bind_op {
> static int pvr_vm_bind_op_exec(struct pvr_vm_bind_op *bind_op)
> {
> switch (bind_op->type) {
> - case PVR_VM_BIND_TYPE_MAP:
> + case PVR_VM_BIND_TYPE_MAP: {
> + const struct drm_gpuvm_map_req map_req = {
> + .map.va.addr = bind_op->device_addr,
> + .map.va.range = bind_op->size,
> + .map.gem.obj = gem_from_pvr_gem(bind_op->pvr_obj),
> + .map.gem.offset = bind_op->offset,
> + };
> +
> return drm_gpuvm_sm_map(&bind_op->vm_ctx->gpuvm_mgr,
> - bind_op, bind_op->device_addr,
> - bind_op->size,
> - gem_from_pvr_gem(bind_op->pvr_obj),
> - bind_op->offset);
> + bind_op, &map_req);
> + }
>
> case PVR_VM_BIND_TYPE_UNMAP:
> return drm_gpuvm_sm_unmap(&bind_op->vm_ctx->gpuvm_mgr,
> diff --git a/drivers/gpu/drm/msm/msm_gem_vma.c b/drivers/gpu/drm/msm/msm_gem_vma.c
> index 3cd8562a5109..792b35433666 100644
> --- a/drivers/gpu/drm/msm/msm_gem_vma.c
> +++ b/drivers/gpu/drm/msm/msm_gem_vma.c
> @@ -1171,11 +1171,17 @@ vm_bind_job_lock_objects(struct msm_vm_bind_job *job, struct drm_exec *exec)
> op->obj_offset);
> break;
> case MSM_VM_BIND_OP_MAP:
> - case MSM_VM_BIND_OP_MAP_NULL:
> - ret = drm_gpuvm_sm_map_exec_lock(job->vm, exec, 1,
> - op->iova, op->range,
> - op->obj, op->obj_offset);
> + case MSM_VM_BIND_OP_MAP_NULL: {
> + struct drm_gpuvm_map_req map_req = {
> + .map.va.addr = op->iova,
> + .map.va.range = op->range,
> + .map.gem.obj = op->obj,
> + .map.gem.offset = op->obj_offset,
> + };
> +
> + ret = drm_gpuvm_sm_map_exec_lock(job->vm, exec, 1, &map_req);
> break;
> + }
> default:
> /*
> * lookup_op() should have already thrown an error for
> @@ -1282,10 +1288,17 @@ vm_bind_job_prepare(struct msm_vm_bind_job *job)
> if (op->flags & MSM_VM_BIND_OP_DUMP)
> arg.flags |= MSM_VMA_DUMP;
> fallthrough;
> - case MSM_VM_BIND_OP_MAP_NULL:
> - ret = drm_gpuvm_sm_map(job->vm, &arg, op->iova,
> - op->range, op->obj, op->obj_offset);
> + case MSM_VM_BIND_OP_MAP_NULL: {
> + struct drm_gpuvm_map_req map_req = {
> + .map.va.addr = op->iova,
> + .map.va.range = op->range,
> + .map.gem.obj = op->obj,
> + .map.gem.offset = op->obj_offset,
> + };
> +
> + ret = drm_gpuvm_sm_map(job->vm, &arg, &map_req);
> break;
> + }
> default:
> /*
> * lookup_op() should have already thrown an error for
> diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
> index ddfc46bc1b3e..d94a85509176 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
> @@ -1276,6 +1276,12 @@ nouveau_uvmm_bind_job_submit(struct nouveau_job *job,
> break;
> case OP_MAP: {
> struct nouveau_uvma_region *reg;
> + struct drm_gpuvm_map_req map_req = {
> + .map.va.addr = op->va.addr,
> + .map.va.range = op->va.range,
> + .map.gem.obj = op->gem.obj,
> + .map.gem.offset = op->gem.offset,
> + };
>
> reg = nouveau_uvma_region_find_first(uvmm,
> op->va.addr,
> @@ -1301,10 +1307,7 @@ nouveau_uvmm_bind_job_submit(struct nouveau_job *job,
> }
>
> op->ops = drm_gpuvm_sm_map_ops_create(&uvmm->base,
> - op->va.addr,
> - op->va.range,
> - op->gem.obj,
> - op->gem.offset);
> + &map_req);
> 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 367c89aca558..2003b91a8409 100644
> --- a/drivers/gpu/drm/panthor/panthor_mmu.c
> +++ b/drivers/gpu/drm/panthor/panthor_mmu.c
> @@ -2202,15 +2202,22 @@ panthor_vm_exec_op(struct panthor_vm *vm, struct panthor_vm_op_ctx *op,
> mutex_lock(&vm->op_lock);
> vm->op_ctx = op;
> switch (op_type) {
> - case DRM_PANTHOR_VM_BIND_OP_TYPE_MAP:
> + case DRM_PANTHOR_VM_BIND_OP_TYPE_MAP: {
> + const struct drm_gpuvm_map_req map_req = {
> + .map.va.addr = op->va.addr,
> + .map.va.range = op->va.range,
> + .map.gem.obj = op->map.vm_bo->obj,
> + .map.gem.offset = op->map.bo_offset,
> + };
> +
> if (vm->unusable) {
> ret = -EINVAL;
> break;
> }
>
> - ret = drm_gpuvm_sm_map(&vm->base, vm, op->va.addr, op->va.range,
> - op->map.vm_bo->obj, op->map.bo_offset);
> + ret = drm_gpuvm_sm_map(&vm->base, vm, &map_req);
> break;
> + }
>
> case DRM_PANTHOR_VM_BIND_OP_TYPE_UNMAP:
> ret = drm_gpuvm_sm_unmap(&vm->base, vm, op->va.addr, op->va.range);
> diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
> index c86337e08a55..f35d69c0b4c6 100644
> --- a/drivers/gpu/drm/xe/xe_vm.c
> +++ b/drivers/gpu/drm/xe/xe_vm.c
> @@ -2337,10 +2337,17 @@ vm_bind_ioctl_ops_create(struct xe_vm *vm, struct xe_vma_ops *vops,
>
> switch (operation) {
> 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);
> + case DRM_XE_VM_BIND_OP_MAP_USERPTR: {
> + struct drm_gpuvm_map_req map_req = {
> + .map.va.addr = addr,
> + .map.va.range = range,
> + .map.gem.obj = obj,
> + .map.gem.offset = bo_offset_or_userptr,
> + };
> +
> + ops = drm_gpuvm_sm_map_ops_create(&vm->gpuvm, &map_req);
> break;
> + }
> case DRM_XE_VM_BIND_OP_UNMAP:
> ops = drm_gpuvm_sm_unmap_ops_create(&vm->gpuvm, addr, range);
> break;
> diff --git a/include/drm/drm_gpuvm.h b/include/drm/drm_gpuvm.h
> index 274532facfd6..a9fa44148e0c 100644
> --- a/include/drm/drm_gpuvm.h
> +++ b/include/drm/drm_gpuvm.h
> @@ -1058,10 +1058,20 @@ struct drm_gpuva_ops {
> */
> #define drm_gpuva_next_op(op) list_next_entry(op, entry)
>
> +/**
> + * struct drm_gpuvm_map_req - arguments passed to drm_gpuvm_sm_map[_ops_create]()
> + */
> +struct drm_gpuvm_map_req {
> + /**
> + * @op_map: struct drm_gpuva_op_map
Doc name doesn't match the field name.
> + */
> + struct drm_gpuva_op_map map;
Nit: not convinced map is a good name for that field, given this is a
map_req, so we now those are map-related arguments. I would probably
go for 'op'.
> +};
> +
> 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);
> + const struct drm_gpuvm_map_req *req);
> +
> struct drm_gpuva_ops *
> drm_gpuvm_sm_unmap_ops_create(struct drm_gpuvm *gpuvm,
> u64 addr, u64 range);
> @@ -1205,16 +1215,14 @@ 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);
> + const struct drm_gpuvm_map_req *req);
>
> int drm_gpuvm_sm_unmap(struct drm_gpuvm *gpuvm, void *priv,
> u64 addr, u64 range);
>
> int drm_gpuvm_sm_map_exec_lock(struct drm_gpuvm *gpuvm,
> struct drm_exec *exec, unsigned int num_fences,
> - u64 req_addr, u64 req_range,
> - struct drm_gem_object *obj, u64 offset);
> + struct drm_gpuvm_map_req *req);
>
> int drm_gpuvm_sm_unmap_exec_lock(struct drm_gpuvm *gpuvm, struct drm_exec *exec,
> u64 req_addr, u64 req_range);
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