On 11/23/22 18:58, Steven Price wrote:
> On 23/11/2022 02:57, Dmitry Osipenko wrote:
>> Add new common evict() callback to drm_gem_object_funcs and corresponding
>> drm_gem_object_evict() helper. This is a first step on a way to providing
>> common GEM-shrinker API for DRM drivers.
>>
>> Suggested-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
>> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>
>> ---
>> drivers/gpu/drm/drm_gem.c | 15 +++++++++++++++
>> include/drm/drm_gem.h | 12 ++++++++++++
>> 2 files changed, 27 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
>> index 299bca1390aa..c0510b8080d2 100644
>> --- a/drivers/gpu/drm/drm_gem.c
>> +++ b/drivers/gpu/drm/drm_gem.c
>> @@ -1458,3 +1458,18 @@ drm_gem_lru_scan(struct drm_gem_lru *lru,
>> return freed;
>> }
>> EXPORT_SYMBOL(drm_gem_lru_scan);
>> +
>> +/**
>> + * drm_gem_object_evict - helper to evict backing pages for a GEM object
>> + * @obj: obj in question
>> + */
>> +bool
>> +drm_gem_object_evict(struct drm_gem_object *obj)
>> +{
>> + dma_resv_assert_held(obj->resv);
>> +
>> + if (obj->funcs->evict)
>> + return obj->funcs->evict(obj);
>> +
>> + return false;
>> +}
>
> This function needs exporting for the module build to work correctly.
Indeed, I missed that drm-shmem can be built as a separate module.
--
Best regards,
Dmitry
