diff options
| author | Adrián Larumbe <adrian.larumbe@collabora.com> | 2023-09-29 19:14:29 +0100 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@collabora.com> | 2023-10-04 13:04:15 +0200 |
| commit | 9ccdac7aa822f0468893e161c1a311674667da1b (patch) | |
| tree | fa92c179cec06b908867aaedab8eaa7a92a45d8c /drivers/gpu/drm/panfrost/panfrost_gem.c | |
| parent | f11b0417eec21ade937da866363433cc0b8b396c (diff) | |
drm/panfrost: Add fdinfo support for memory stats
A new DRM GEM object function is added so that drm_show_memory_stats can
provide more accurate memory usage numbers.
Ideally, in panfrost_gem_status, the BO's purgeable flag would be checked
after locking the driver's shrinker mutex, but drm_show_memory_stats takes
over the drm file's object handle database spinlock, so there's potential
for a race condition here.
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230929181616.2769345-4-adrian.larumbe@collabora.com
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_gem.c')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gem.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c index 3c812fbd126f..de238b71b321 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem.c +++ b/drivers/gpu/drm/panfrost/panfrost_gem.c @@ -195,6 +195,20 @@ static int panfrost_gem_pin(struct drm_gem_object *obj) return drm_gem_shmem_pin(&bo->base); } +static enum drm_gem_object_status panfrost_gem_status(struct drm_gem_object *obj) +{ + struct panfrost_gem_object *bo = to_panfrost_bo(obj); + enum drm_gem_object_status res = 0; + + if (bo->base.pages) + res |= DRM_GEM_OBJECT_RESIDENT; + + if (bo->base.madv == PANFROST_MADV_DONTNEED) + res |= DRM_GEM_OBJECT_PURGEABLE; + + return res; +} + static const struct drm_gem_object_funcs panfrost_gem_funcs = { .free = panfrost_gem_free_object, .open = panfrost_gem_open, @@ -206,6 +220,7 @@ static const struct drm_gem_object_funcs panfrost_gem_funcs = { .vmap = drm_gem_shmem_object_vmap, .vunmap = drm_gem_shmem_object_vunmap, .mmap = drm_gem_shmem_object_mmap, + .status = panfrost_gem_status, .vm_ops = &drm_gem_shmem_vm_ops, }; |