[PATCH v2 06/13] drm/msm/gem: Rename to pin/unpin_pages

Rob Clark
2022-07-19T17:19:29Z

Since that is what these fxns actually do.. they are getting *pinned*
pages (as opposed to cases where we need pages, but don't need them
pinned, like CPU mappings).

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/msm/msm_gem.c | 18 +++++++++++++-----
drivers/gpu/drm/msm/msm_gem.h | 4 ++--
drivers/gpu/drm/msm/msm_gem_prime.c | 4 ++--
3 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 97467364dc0a..3da64c7f65a2 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -177,30 +177,38 @@ static void put_pages(struct drm_gem_object *obj)
}
}

-struct page **msm_gem_get_pages(struct drm_gem_object *obj)
+static struct page **msm_gem_pin_pages_locked(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct page **p;

- msm_gem_lock(obj);
+ GEM_WARN_ON(!msm_gem_is_locked(obj));

if (GEM_WARN_ON(msm_obj->madv != MSM_MADV_WILLNEED)) {
- msm_gem_unlock(obj);
return ERR_PTR(-EBUSY);
}

p = get_pages(obj);
-
if (!IS_ERR(p)) {
msm_obj->pin_count++;
update_lru(obj);
}

+ return p;
+}
+
+struct page **msm_gem_pin_pages(struct drm_gem_object *obj)
+{
+ struct page **p;
+
+ msm_gem_lock(obj);
+ p = msm_gem_pin_pages_locked(obj);
msm_gem_unlock(obj);
+
return p;
}

-void msm_gem_put_pages(struct drm_gem_object *obj)
+void msm_gem_unpin_pages(struct drm_gem_object *obj)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);

diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index 0ab0dc4f8c25..6fe521ccda45 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -159,8 +159,8 @@ int msm_gem_get_and_pin_iova(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace, uint64_t *iova);
void msm_gem_unpin_iova(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace);
-struct page **msm_gem_get_pages(struct drm_gem_object *obj);
-void msm_gem_put_pages(struct drm_gem_object *obj);
+struct page **msm_gem_pin_pages(struct drm_gem_object *obj);
+void msm_gem_unpin_pages(struct drm_gem_object *obj);
int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args);
int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
diff --git a/drivers/gpu/drm/msm/msm_gem_prime.c b/drivers/gpu/drm/msm/msm_gem_prime.c
index dcc8a573bc76..c1d91863df05 100644
--- a/drivers/gpu/drm/msm/msm_gem_prime.c
+++ b/drivers/gpu/drm/msm/msm_gem_prime.c
@@ -63,12 +63,12 @@ struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
int msm_gem_prime_pin(struct drm_gem_object *obj)
{
if (!obj->import_attach)
- msm_gem_get_pages(obj);
+ msm_gem_pin_pages(obj);
return 0;
}

void msm_gem_prime_unpin(struct drm_gem_object *obj)
{
if (!obj->import_attach)
- msm_gem_put_pages(obj);
+ msm_gem_unpin_pages(obj);
}
--
2.36.1