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accel/ivpu: Add fdinfo support for memory statistics

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Implement DRM fdinfo interface to expose memory usage statistics
for NPU device file descriptors. Exclude unpinned and imported
buffers from resident memory calculations to provide accurate
memory usage reporting.

Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Link: https://patch.msgid.link/20251106101052.1050348-2-karol.wachowski@linux.intel.com
This commit is contained in:
Karol Wachowski
2025-11-06 11:10:51 +01:00
parent be4cd2a13a
commit 63cc028484
3 changed files with 23 additions and 0 deletions
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6
drivers/accel/ivpu/ivpu_drv.c
View File

@@ -455,6 +455,9 @@ int ivpu_shutdown(struct ivpu_device *vdev)
static const struct file_operations ivpu_fops = {
.owner = THIS_MODULE,
DRM_ACCEL_FOPS,
#if CONFIG_PROC_FS
.show_fdinfo = drm_show_fdinfo,
#endif
};
static const struct drm_driver driver = {
@@ -469,6 +472,9 @@ static const struct drm_driver driver = {
.ioctls = ivpu_drm_ioctls,
.num_ioctls = ARRAY_SIZE(ivpu_drm_ioctls),
.fops = &ivpu_fops,
#if CONFIG_PROC_FS
.show_fdinfo = drm_show_memory_stats,
#endif
.name = DRIVER_NAME,
.desc = DRIVER_DESC,

12
drivers/accel/ivpu/ivpu_gem.c
View File

@@ -333,6 +333,17 @@ static void ivpu_gem_bo_free(struct drm_gem_object *obj)
drm_gem_shmem_free(&bo->base);
}
static enum drm_gem_object_status ivpu_gem_status(struct drm_gem_object *obj)
{
struct ivpu_bo *bo = to_ivpu_bo(obj);
enum drm_gem_object_status status = 0;
if (ivpu_bo_is_resident(bo))
status |= DRM_GEM_OBJECT_RESIDENT;
return status;
}
static const struct drm_gem_object_funcs ivpu_gem_funcs = {
.free = ivpu_gem_bo_free,
.open = ivpu_gem_bo_open,
@@ -343,6 +354,7 @@ static const struct drm_gem_object_funcs ivpu_gem_funcs = {
.vmap = drm_gem_shmem_object_vmap,
.vunmap = drm_gem_shmem_object_vunmap,
.mmap = drm_gem_shmem_object_mmap,
.status = ivpu_gem_status,
.vm_ops = &drm_gem_shmem_vm_ops,
};

5
drivers/accel/ivpu/ivpu_gem.h
View File

@@ -82,6 +82,11 @@ static inline bool ivpu_bo_is_read_only(struct ivpu_bo *bo)
return bo->flags & DRM_IVPU_BO_READ_ONLY;
}
static inline bool ivpu_bo_is_resident(struct ivpu_bo *bo)
{
return !!bo->base.pages;
}
static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr)
{
if (vpu_addr < bo->vpu_addr)