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Subject[PATCH 2/2] drm/panthor: Enable fdinfo for memory stats
Date
When vm-binding an already-created BO, the entirety of its virtual size is
then backed by system memory, so its RSS is always the same as its virtual
size.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
---
drivers/gpu/drm/panthor/panthor_drv.c | 1 +
drivers/gpu/drm/panthor/panthor_gem.c | 12 ++++++++++++
2 files changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/panthor/panthor_drv.c
index fa06b9e2c6cd..a5398e161f75 100644
--- a/drivers/gpu/drm/panthor/panthor_drv.c
+++ b/drivers/gpu/drm/panthor/panthor_drv.c
@@ -1363,6 +1363,7 @@ static void panthor_show_fdinfo(struct drm_printer *p, struct drm_file *file)

panthor_gpu_show_fdinfo(ptdev, file->driver_priv, p);

+ drm_show_memory_stats(p, file);
}

static const struct file_operations panthor_drm_driver_fops = {
diff --git a/drivers/gpu/drm/panthor/panthor_gem.c b/drivers/gpu/drm/panthor/panthor_gem.c
index d6483266d0c2..845724e3fd93 100644
--- a/drivers/gpu/drm/panthor/panthor_gem.c
+++ b/drivers/gpu/drm/panthor/panthor_gem.c
@@ -143,6 +143,17 @@ panthor_gem_prime_export(struct drm_gem_object *obj, int flags)
return drm_gem_prime_export(obj, flags);
}

+static enum drm_gem_object_status panthor_gem_status(struct drm_gem_object *obj)
+{
+ struct panthor_gem_object *bo = to_panthor_bo(obj);
+ enum drm_gem_object_status res = 0;
+
+ if (bo->base.pages)
+ res |= DRM_GEM_OBJECT_RESIDENT;
+
+ return res;
+}
+
static const struct drm_gem_object_funcs panthor_gem_funcs = {
.free = panthor_gem_free_object,
.print_info = drm_gem_shmem_object_print_info,
@@ -152,6 +163,7 @@ static const struct drm_gem_object_funcs panthor_gem_funcs = {
.vmap = drm_gem_shmem_object_vmap,
.vunmap = drm_gem_shmem_object_vunmap,
.mmap = panthor_gem_mmap,
+ .status = panthor_gem_status,
.export = panthor_gem_prime_export,
.vm_ops = &drm_gem_shmem_vm_ops,
};
--
2.43.0

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