[v11,03/10] drm/shmem-helper: Switch drm_gem_shmem_vmap/vunmap to use pin/unpin
Commit Message
The vmapped pages shall be pinned in memory. Previously get/put pages were
implicitly pinning/unpinning the pages. This will no longer be the case
with addition of memory shrinker because pages_use_count>0 won't determine
whether pages are pinned anymore, while the new pages_pin_count will do
that. Switch the vmap/vunmap to use pin/unpin functions in a preparation
of addition of the memory shrinker support.
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
drivers/gpu/drm/drm_gem_shmem_helper.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
@@ -357,7 +357,7 @@ int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem,
return 0;
}
- ret = drm_gem_shmem_get_pages(shmem);
+ ret = drm_gem_shmem_pin(shmem);
if (ret)
goto err_zero_use;
@@ -380,7 +380,7 @@ int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem,
err_put_pages:
if (!obj->import_attach)
- drm_gem_shmem_put_pages(shmem);
+ drm_gem_shmem_unpin(shmem);
err_zero_use:
shmem->vmap_use_count = 0;
@@ -417,7 +417,7 @@ void drm_gem_shmem_vunmap(struct drm_gem_shmem_object *shmem,
return;
vunmap(shmem->vaddr);
- drm_gem_shmem_put_pages(shmem);
+ drm_gem_shmem_unpin(shmem);
}
shmem->vaddr = NULL;