Kernel BO's aren't exposed to UM, so labelling them is the responsibility
of the driver itself. This kind of tagging will prove useful in further
commits when want to expose these objects through DebugFS.

Expand panthor_kernel_bo_create() interface to take a NULL-terminated
string. No bounds checking is done because all label strings are given
as statically-allocated literals, but if a more complex kernel BO naming
scheme with explicit memory allocation and formatting was desired in the
future, this would have to change.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
---
 drivers/gpu/drm/panthor/panthor_fw.c    | 8 +++++---
 drivers/gpu/drm/panthor/panthor_gem.c   | 4 +++-
 drivers/gpu/drm/panthor/panthor_gem.h   | 2 +-
 drivers/gpu/drm/panthor/panthor_heap.c  | 6 ++++--
 drivers/gpu/drm/panthor/panthor_sched.c | 9 ++++++---
 5 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor/panthor_fw.c
index 0f52766a3120..a7fdc4d8020d 100644
--- a/drivers/gpu/drm/panthor/panthor_fw.c
+++ b/drivers/gpu/drm/panthor/panthor_fw.c
@@ -449,7 +449,8 @@ panthor_fw_alloc_queue_iface_mem(struct panthor_device *ptdev,
 				       DRM_PANTHOR_BO_NO_MMAP,
 				       DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
 				       DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
-				       PANTHOR_VM_KERNEL_AUTO_VA);
+				       PANTHOR_VM_KERNEL_AUTO_VA,
+				       "Queue FW interface");
 	if (IS_ERR(mem))
 		return mem;
 
@@ -481,7 +482,8 @@ panthor_fw_alloc_suspend_buf_mem(struct panthor_device *ptdev, size_t size)
 	return panthor_kernel_bo_create(ptdev, panthor_fw_vm(ptdev), size,
 					DRM_PANTHOR_BO_NO_MMAP,
 					DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC,
-					PANTHOR_VM_KERNEL_AUTO_VA);
+					PANTHOR_VM_KERNEL_AUTO_VA,
+					"FW suspend buffer");
 }
 
 static int panthor_fw_load_section_entry(struct panthor_device *ptdev,
@@ -601,7 +603,7 @@ static int panthor_fw_load_section_entry(struct panthor_device *ptdev,
 		section->mem = panthor_kernel_bo_create(ptdev, panthor_fw_vm(ptdev),
 							section_size,
 							DRM_PANTHOR_BO_NO_MMAP,
-							vm_map_flags, va);
+							vm_map_flags, va, "FW section");
 		if (IS_ERR(section->mem))
 			return PTR_ERR(section->mem);
 
diff --git a/drivers/gpu/drm/panthor/panthor_gem.c b/drivers/gpu/drm/panthor/panthor_gem.c
index af0ac17f357f..3c5fc854356e 100644
--- a/drivers/gpu/drm/panthor/panthor_gem.c
+++ b/drivers/gpu/drm/panthor/panthor_gem.c
@@ -82,7 +82,7 @@ void panthor_kernel_bo_destroy(struct panthor_kernel_bo *bo)
 struct panthor_kernel_bo *
 panthor_kernel_bo_create(struct panthor_device *ptdev, struct panthor_vm *vm,
 			 size_t size, u32 bo_flags, u32 vm_map_flags,
-			 u64 gpu_va)
+			 u64 gpu_va, const char *name)
 {
 	struct drm_gem_shmem_object *obj;
 	struct panthor_kernel_bo *kbo;
@@ -106,6 +106,8 @@ panthor_kernel_bo_create(struct panthor_device *ptdev, struct panthor_vm *vm,
 	kbo->obj = &obj->base;
 	bo->flags = bo_flags;
 
+	panthor_gem_kernel_bo_set_label(kbo, name);
+
 	/* The system and GPU MMU page size might differ, which becomes a
 	 * problem for FW sections that need to be mapped at explicit address
 	 * since our PAGE_SIZE alignment might cover a VA range that's
diff --git a/drivers/gpu/drm/panthor/panthor_gem.h b/drivers/gpu/drm/panthor/panthor_gem.h
index beba066b4974..62aea06dbc6d 100644
--- a/drivers/gpu/drm/panthor/panthor_gem.h
+++ b/drivers/gpu/drm/panthor/panthor_gem.h
@@ -153,7 +153,7 @@ panthor_kernel_bo_vunmap(struct panthor_kernel_bo *bo)
 struct panthor_kernel_bo *
 panthor_kernel_bo_create(struct panthor_device *ptdev, struct panthor_vm *vm,
 			 size_t size, u32 bo_flags, u32 vm_map_flags,
-			 u64 gpu_va);
+			 u64 gpu_va, const char *name);
 
 void panthor_kernel_bo_destroy(struct panthor_kernel_bo *bo);
 
diff --git a/drivers/gpu/drm/panthor/panthor_heap.c b/drivers/gpu/drm/panthor/panthor_heap.c
index 3bdf61c14264..d236e9ceade4 100644
--- a/drivers/gpu/drm/panthor/panthor_heap.c
+++ b/drivers/gpu/drm/panthor/panthor_heap.c
@@ -151,7 +151,8 @@ static int panthor_alloc_heap_chunk(struct panthor_heap_pool *pool,
 	chunk->bo = panthor_kernel_bo_create(pool->ptdev, pool->vm, heap->chunk_size,
 					     DRM_PANTHOR_BO_NO_MMAP,
 					     DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC,
-					     PANTHOR_VM_KERNEL_AUTO_VA);
+					     PANTHOR_VM_KERNEL_AUTO_VA,
+					     "Tiler heap chunk");
 	if (IS_ERR(chunk->bo)) {
 		ret = PTR_ERR(chunk->bo);
 		goto err_free_chunk;
@@ -555,7 +556,8 @@ panthor_heap_pool_create(struct panthor_device *ptdev, struct panthor_vm *vm)
 	pool->gpu_contexts = panthor_kernel_bo_create(ptdev, vm, bosize,
 						      DRM_PANTHOR_BO_NO_MMAP,
 						      DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC,
-						      PANTHOR_VM_KERNEL_AUTO_VA);
+						      PANTHOR_VM_KERNEL_AUTO_VA,
+						      "Heap pool");
 	if (IS_ERR(pool->gpu_contexts)) {
 		ret = PTR_ERR(pool->gpu_contexts);
 		goto err_destroy_pool;
diff --git a/drivers/gpu/drm/panthor/panthor_sched.c b/drivers/gpu/drm/panthor/panthor_sched.c
index 446ec780eb4a..43ee57728de5 100644
--- a/drivers/gpu/drm/panthor/panthor_sched.c
+++ b/drivers/gpu/drm/panthor/panthor_sched.c
@@ -3332,7 +3332,8 @@ group_create_queue(struct panthor_group *group,
 						  DRM_PANTHOR_BO_NO_MMAP,
 						  DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
 						  DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
-						  PANTHOR_VM_KERNEL_AUTO_VA);
+						  PANTHOR_VM_KERNEL_AUTO_VA,
+						  "CS ring buffer");
 	if (IS_ERR(queue->ringbuf)) {
 		ret = PTR_ERR(queue->ringbuf);
 		goto err_free_queue;
@@ -3362,7 +3363,8 @@ group_create_queue(struct panthor_group *group,
 					 DRM_PANTHOR_BO_NO_MMAP,
 					 DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
 					 DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
-					 PANTHOR_VM_KERNEL_AUTO_VA);
+					 PANTHOR_VM_KERNEL_AUTO_VA,
+					 "Group job stats");
 
 	if (IS_ERR(queue->profiling.slots)) {
 		ret = PTR_ERR(queue->profiling.slots);
@@ -3493,7 +3495,8 @@ int panthor_group_create(struct panthor_file *pfile,
 						   DRM_PANTHOR_BO_NO_MMAP,
 						   DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
 						   DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
-						   PANTHOR_VM_KERNEL_AUTO_VA);
+						   PANTHOR_VM_KERNEL_AUTO_VA,
+						   "Group sync objects");
 	if (IS_ERR(group->syncobjs)) {
 		ret = PTR_ERR(group->syncobjs);
 		goto err_put_group;
-- 
2.48.1

Hi Adrián,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.15-rc2 next-20250414]
[cannot apply to drm-misc/drm-misc-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Adri-n-Larumbe/drm-panthor-Introduce-BO-labeling/20250414-101541
base:   linus/master
patch link:    https://lore.kernel.org/r/20250411150357.3308921-4-adrian.larumbe%40collabora.com
patch subject: [PATCH v7 3/4] drm/panthor: Label all kernel BO's
config: i386-buildonly-randconfig-006-20250414 (https://download.01.org/0day-ci/archive/20250414/202504142148.NBAyzLuE-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250414/202504142148.NBAyzLuE-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504142148.NBAyzLuE-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/panthor/panthor_gem.c:86: warning: Function parameter or struct member 'name' not described in 'panthor_kernel_bo_create'


vim +86 drivers/gpu/drm/panthor/panthor_gem.c

8a1cc07578bf42 Boris Brezillon 2024-02-29   67  
8a1cc07578bf42 Boris Brezillon 2024-02-29   68  /**
8a1cc07578bf42 Boris Brezillon 2024-02-29   69   * panthor_kernel_bo_create() - Create and map a GEM object to a VM
8a1cc07578bf42 Boris Brezillon 2024-02-29   70   * @ptdev: Device.
8a1cc07578bf42 Boris Brezillon 2024-02-29   71   * @vm: VM to map the GEM to. If NULL, the kernel object is not GPU mapped.
8a1cc07578bf42 Boris Brezillon 2024-02-29   72   * @size: Size of the buffer object.
8a1cc07578bf42 Boris Brezillon 2024-02-29   73   * @bo_flags: Combination of drm_panthor_bo_flags flags.
8a1cc07578bf42 Boris Brezillon 2024-02-29   74   * @vm_map_flags: Combination of drm_panthor_vm_bind_op_flags (only those
8a1cc07578bf42 Boris Brezillon 2024-02-29   75   * that are related to map operations).
8a1cc07578bf42 Boris Brezillon 2024-02-29   76   * @gpu_va: GPU address assigned when mapping to the VM.
8a1cc07578bf42 Boris Brezillon 2024-02-29   77   * If gpu_va == PANTHOR_VM_KERNEL_AUTO_VA, the virtual address will be
8a1cc07578bf42 Boris Brezillon 2024-02-29   78   * automatically allocated.
8a1cc07578bf42 Boris Brezillon 2024-02-29   79   *
8a1cc07578bf42 Boris Brezillon 2024-02-29   80   * Return: A valid pointer in case of success, an ERR_PTR() otherwise.
8a1cc07578bf42 Boris Brezillon 2024-02-29   81   */
8a1cc07578bf42 Boris Brezillon 2024-02-29   82  struct panthor_kernel_bo *
8a1cc07578bf42 Boris Brezillon 2024-02-29   83  panthor_kernel_bo_create(struct panthor_device *ptdev, struct panthor_vm *vm,
8a1cc07578bf42 Boris Brezillon 2024-02-29   84  			 size_t size, u32 bo_flags, u32 vm_map_flags,
f48f05d54f7696 Adrián Larumbe  2025-04-11   85  			 u64 gpu_va, const char *name)
8a1cc07578bf42 Boris Brezillon 2024-02-29  @86  {
8a1cc07578bf42 Boris Brezillon 2024-02-29   87  	struct drm_gem_shmem_object *obj;
8a1cc07578bf42 Boris Brezillon 2024-02-29   88  	struct panthor_kernel_bo *kbo;
8a1cc07578bf42 Boris Brezillon 2024-02-29   89  	struct panthor_gem_object *bo;
8a1cc07578bf42 Boris Brezillon 2024-02-29   90  	int ret;
8a1cc07578bf42 Boris Brezillon 2024-02-29   91  
8a1cc07578bf42 Boris Brezillon 2024-02-29   92  	if (drm_WARN_ON(&ptdev->base, !vm))
8a1cc07578bf42 Boris Brezillon 2024-02-29   93  		return ERR_PTR(-EINVAL);
8a1cc07578bf42 Boris Brezillon 2024-02-29   94  
8a1cc07578bf42 Boris Brezillon 2024-02-29   95  	kbo = kzalloc(sizeof(*kbo), GFP_KERNEL);
8a1cc07578bf42 Boris Brezillon 2024-02-29   96  	if (!kbo)
8a1cc07578bf42 Boris Brezillon 2024-02-29   97  		return ERR_PTR(-ENOMEM);
8a1cc07578bf42 Boris Brezillon 2024-02-29   98  
8a1cc07578bf42 Boris Brezillon 2024-02-29   99  	obj = drm_gem_shmem_create(&ptdev->base, size);
8a1cc07578bf42 Boris Brezillon 2024-02-29  100  	if (IS_ERR(obj)) {
8a1cc07578bf42 Boris Brezillon 2024-02-29  101  		ret = PTR_ERR(obj);
8a1cc07578bf42 Boris Brezillon 2024-02-29  102  		goto err_free_bo;
8a1cc07578bf42 Boris Brezillon 2024-02-29  103  	}
8a1cc07578bf42 Boris Brezillon 2024-02-29  104  
8a1cc07578bf42 Boris Brezillon 2024-02-29  105  	bo = to_panthor_bo(&obj->base);
8a1cc07578bf42 Boris Brezillon 2024-02-29  106  	kbo->obj = &obj->base;
8a1cc07578bf42 Boris Brezillon 2024-02-29  107  	bo->flags = bo_flags;
8a1cc07578bf42 Boris Brezillon 2024-02-29  108  
f48f05d54f7696 Adrián Larumbe  2025-04-11  109  	panthor_gem_kernel_bo_set_label(kbo, name);
f48f05d54f7696 Adrián Larumbe  2025-04-11  110  
5d01b56f0518d8 Boris Brezillon 2024-10-30  111  	/* The system and GPU MMU page size might differ, which becomes a
5d01b56f0518d8 Boris Brezillon 2024-10-30  112  	 * problem for FW sections that need to be mapped at explicit address
5d01b56f0518d8 Boris Brezillon 2024-10-30  113  	 * since our PAGE_SIZE alignment might cover a VA range that's
5d01b56f0518d8 Boris Brezillon 2024-10-30  114  	 * expected to be used for another section.
5d01b56f0518d8 Boris Brezillon 2024-10-30  115  	 * Make sure we never map more than we need.
5d01b56f0518d8 Boris Brezillon 2024-10-30  116  	 */
5d01b56f0518d8 Boris Brezillon 2024-10-30  117  	size = ALIGN(size, panthor_vm_page_size(vm));
8a1cc07578bf42 Boris Brezillon 2024-02-29  118  	ret = panthor_vm_alloc_va(vm, gpu_va, size, &kbo->va_node);
8a1cc07578bf42 Boris Brezillon 2024-02-29  119  	if (ret)
8a1cc07578bf42 Boris Brezillon 2024-02-29  120  		goto err_put_obj;
8a1cc07578bf42 Boris Brezillon 2024-02-29  121  
8a1cc07578bf42 Boris Brezillon 2024-02-29  122  	ret = panthor_vm_map_bo_range(vm, bo, 0, size, kbo->va_node.start, vm_map_flags);
8a1cc07578bf42 Boris Brezillon 2024-02-29  123  	if (ret)
8a1cc07578bf42 Boris Brezillon 2024-02-29  124  		goto err_free_va;
8a1cc07578bf42 Boris Brezillon 2024-02-29  125  
ff60c8da0aaf7e Boris Brezillon 2024-05-02  126  	kbo->vm = panthor_vm_get(vm);
8a1cc07578bf42 Boris Brezillon 2024-02-29  127  	bo->exclusive_vm_root_gem = panthor_vm_root_gem(vm);
8a1cc07578bf42 Boris Brezillon 2024-02-29  128  	drm_gem_object_get(bo->exclusive_vm_root_gem);
8a1cc07578bf42 Boris Brezillon 2024-02-29  129  	bo->base.base.resv = bo->exclusive_vm_root_gem->resv;
8a1cc07578bf42 Boris Brezillon 2024-02-29  130  	return kbo;
8a1cc07578bf42 Boris Brezillon 2024-02-29  131  
8a1cc07578bf42 Boris Brezillon 2024-02-29  132  err_free_va:
8a1cc07578bf42 Boris Brezillon 2024-02-29  133  	panthor_vm_free_va(vm, &kbo->va_node);
8a1cc07578bf42 Boris Brezillon 2024-02-29  134  
8a1cc07578bf42 Boris Brezillon 2024-02-29  135  err_put_obj:
8a1cc07578bf42 Boris Brezillon 2024-02-29  136  	drm_gem_object_put(&obj->base);
8a1cc07578bf42 Boris Brezillon 2024-02-29  137  
8a1cc07578bf42 Boris Brezillon 2024-02-29  138  err_free_bo:
8a1cc07578bf42 Boris Brezillon 2024-02-29  139  	kfree(kbo);
8a1cc07578bf42 Boris Brezillon 2024-02-29  140  	return ERR_PTR(ret);
8a1cc07578bf42 Boris Brezillon 2024-02-29  141  }
8a1cc07578bf42 Boris Brezillon 2024-02-29  142  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

On 11/04/2025 16:03, Adrián Larumbe wrote:
> Kernel BO's aren't exposed to UM, so labelling them is the responsibility
> of the driver itself. This kind of tagging will prove useful in further
> commits when want to expose these objects through DebugFS.
> 
> Expand panthor_kernel_bo_create() interface to take a NULL-terminated

NIT: s/NULL/NUL/

> string. No bounds checking is done because all label strings are given
> as statically-allocated literals, but if a more complex kernel BO naming
> scheme with explicit memory allocation and formatting was desired in the
> future, this would have to change.

I'm not sure I follow why bounds-checking would be an issue for strings
from the kernel. But as you state these are all literals so definitely
not a problem.

> 
> Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>

Reviewed-by: Steven Price <steven.price@arm.com>

> ---
>  drivers/gpu/drm/panthor/panthor_fw.c    | 8 +++++---
>  drivers/gpu/drm/panthor/panthor_gem.c   | 4 +++-
>  drivers/gpu/drm/panthor/panthor_gem.h   | 2 +-
>  drivers/gpu/drm/panthor/panthor_heap.c  | 6 ++++--
>  drivers/gpu/drm/panthor/panthor_sched.c | 9 ++++++---
>  5 files changed, 19 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor/panthor_fw.c
> index 0f52766a3120..a7fdc4d8020d 100644
> --- a/drivers/gpu/drm/panthor/panthor_fw.c
> +++ b/drivers/gpu/drm/panthor/panthor_fw.c
> @@ -449,7 +449,8 @@ panthor_fw_alloc_queue_iface_mem(struct panthor_device *ptdev,
>  				       DRM_PANTHOR_BO_NO_MMAP,
>  				       DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
>  				       DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
> -				       PANTHOR_VM_KERNEL_AUTO_VA);
> +				       PANTHOR_VM_KERNEL_AUTO_VA,
> +				       "Queue FW interface");
>  	if (IS_ERR(mem))
>  		return mem;
>  
> @@ -481,7 +482,8 @@ panthor_fw_alloc_suspend_buf_mem(struct panthor_device *ptdev, size_t size)
>  	return panthor_kernel_bo_create(ptdev, panthor_fw_vm(ptdev), size,
>  					DRM_PANTHOR_BO_NO_MMAP,
>  					DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC,
> -					PANTHOR_VM_KERNEL_AUTO_VA);
> +					PANTHOR_VM_KERNEL_AUTO_VA,
> +					"FW suspend buffer");
>  }
>  
>  static int panthor_fw_load_section_entry(struct panthor_device *ptdev,
> @@ -601,7 +603,7 @@ static int panthor_fw_load_section_entry(struct panthor_device *ptdev,
>  		section->mem = panthor_kernel_bo_create(ptdev, panthor_fw_vm(ptdev),
>  							section_size,
>  							DRM_PANTHOR_BO_NO_MMAP,
> -							vm_map_flags, va);
> +							vm_map_flags, va, "FW section");
>  		if (IS_ERR(section->mem))
>  			return PTR_ERR(section->mem);
>  
> diff --git a/drivers/gpu/drm/panthor/panthor_gem.c b/drivers/gpu/drm/panthor/panthor_gem.c
> index af0ac17f357f..3c5fc854356e 100644
> --- a/drivers/gpu/drm/panthor/panthor_gem.c
> +++ b/drivers/gpu/drm/panthor/panthor_gem.c
> @@ -82,7 +82,7 @@ void panthor_kernel_bo_destroy(struct panthor_kernel_bo *bo)
>  struct panthor_kernel_bo *
>  panthor_kernel_bo_create(struct panthor_device *ptdev, struct panthor_vm *vm,
>  			 size_t size, u32 bo_flags, u32 vm_map_flags,
> -			 u64 gpu_va)
> +			 u64 gpu_va, const char *name)
>  {
>  	struct drm_gem_shmem_object *obj;
>  	struct panthor_kernel_bo *kbo;
> @@ -106,6 +106,8 @@ panthor_kernel_bo_create(struct panthor_device *ptdev, struct panthor_vm *vm,
>  	kbo->obj = &obj->base;
>  	bo->flags = bo_flags;
>  
> +	panthor_gem_kernel_bo_set_label(kbo, name);
> +
>  	/* The system and GPU MMU page size might differ, which becomes a
>  	 * problem for FW sections that need to be mapped at explicit address
>  	 * since our PAGE_SIZE alignment might cover a VA range that's
> diff --git a/drivers/gpu/drm/panthor/panthor_gem.h b/drivers/gpu/drm/panthor/panthor_gem.h
> index beba066b4974..62aea06dbc6d 100644
> --- a/drivers/gpu/drm/panthor/panthor_gem.h
> +++ b/drivers/gpu/drm/panthor/panthor_gem.h
> @@ -153,7 +153,7 @@ panthor_kernel_bo_vunmap(struct panthor_kernel_bo *bo)
>  struct panthor_kernel_bo *
>  panthor_kernel_bo_create(struct panthor_device *ptdev, struct panthor_vm *vm,
>  			 size_t size, u32 bo_flags, u32 vm_map_flags,
> -			 u64 gpu_va);
> +			 u64 gpu_va, const char *name);
>  
>  void panthor_kernel_bo_destroy(struct panthor_kernel_bo *bo);
>  
> diff --git a/drivers/gpu/drm/panthor/panthor_heap.c b/drivers/gpu/drm/panthor/panthor_heap.c
> index 3bdf61c14264..d236e9ceade4 100644
> --- a/drivers/gpu/drm/panthor/panthor_heap.c
> +++ b/drivers/gpu/drm/panthor/panthor_heap.c
> @@ -151,7 +151,8 @@ static int panthor_alloc_heap_chunk(struct panthor_heap_pool *pool,
>  	chunk->bo = panthor_kernel_bo_create(pool->ptdev, pool->vm, heap->chunk_size,
>  					     DRM_PANTHOR_BO_NO_MMAP,
>  					     DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC,
> -					     PANTHOR_VM_KERNEL_AUTO_VA);
> +					     PANTHOR_VM_KERNEL_AUTO_VA,
> +					     "Tiler heap chunk");
>  	if (IS_ERR(chunk->bo)) {
>  		ret = PTR_ERR(chunk->bo);
>  		goto err_free_chunk;
> @@ -555,7 +556,8 @@ panthor_heap_pool_create(struct panthor_device *ptdev, struct panthor_vm *vm)
>  	pool->gpu_contexts = panthor_kernel_bo_create(ptdev, vm, bosize,
>  						      DRM_PANTHOR_BO_NO_MMAP,
>  						      DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC,
> -						      PANTHOR_VM_KERNEL_AUTO_VA);
> +						      PANTHOR_VM_KERNEL_AUTO_VA,
> +						      "Heap pool");
>  	if (IS_ERR(pool->gpu_contexts)) {
>  		ret = PTR_ERR(pool->gpu_contexts);
>  		goto err_destroy_pool;
> diff --git a/drivers/gpu/drm/panthor/panthor_sched.c b/drivers/gpu/drm/panthor/panthor_sched.c
> index 446ec780eb4a..43ee57728de5 100644
> --- a/drivers/gpu/drm/panthor/panthor_sched.c
> +++ b/drivers/gpu/drm/panthor/panthor_sched.c
> @@ -3332,7 +3332,8 @@ group_create_queue(struct panthor_group *group,
>  						  DRM_PANTHOR_BO_NO_MMAP,
>  						  DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
>  						  DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
> -						  PANTHOR_VM_KERNEL_AUTO_VA);
> +						  PANTHOR_VM_KERNEL_AUTO_VA,
> +						  "CS ring buffer");
>  	if (IS_ERR(queue->ringbuf)) {
>  		ret = PTR_ERR(queue->ringbuf);
>  		goto err_free_queue;
> @@ -3362,7 +3363,8 @@ group_create_queue(struct panthor_group *group,
>  					 DRM_PANTHOR_BO_NO_MMAP,
>  					 DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
>  					 DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
> -					 PANTHOR_VM_KERNEL_AUTO_VA);
> +					 PANTHOR_VM_KERNEL_AUTO_VA,
> +					 "Group job stats");
>  
>  	if (IS_ERR(queue->profiling.slots)) {
>  		ret = PTR_ERR(queue->profiling.slots);
> @@ -3493,7 +3495,8 @@ int panthor_group_create(struct panthor_file *pfile,
>  						   DRM_PANTHOR_BO_NO_MMAP,
>  						   DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC |
>  						   DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED,
> -						   PANTHOR_VM_KERNEL_AUTO_VA);
> +						   PANTHOR_VM_KERNEL_AUTO_VA,
> +						   "Group sync objects");
>  	if (IS_ERR(group->syncobjs)) {
>  		ret = PTR_ERR(group->syncobjs);
>  		goto err_put_group;