From: Rob Clark <robdcl...@chromium.org>
When we cut-over to using dma_resv_lock/etc instead of msm_obj->lock,
we'll need these for the submit path (where resv->lock is already held).
Signed-off-by: Rob Clark <robdcl...@chromium.org>
---
drivers/gpu/drm/msm/msm_gem.c | 50 +++++++++++++++++++++++++++--------
drivers/gpu/drm/msm/msm_gem.h | 4 +++
2 files changed, 43 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index dec89fe79025..7bca2e815933 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -435,18 +435,14 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj,
msm_obj->sgt, obj->size >> PAGE_SHIFT);
}
-/*
- * get iova and pin it. Should have a matching put
- * limits iova to specified range (in pages)
- */
-int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj,
+static int get_and_pin_iova_range_locked(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace, uint64_t *iova,
u64 range_start, u64 range_end)
{
u64 local;
int ret;
- msm_gem_lock(obj);
+ WARN_ON(!msm_gem_is_locked(obj));
ret = get_iova_locked(obj, aspace, &local,
range_start, range_end);
@@ -457,10 +453,32 @@ int msm_gem_get_and_pin_iova_range(struct drm_gem_object
*obj,
if (!ret)
*iova = local;
+ return ret;
+}
+
+/*
+ * get iova and pin it. Should have a matching put
+ * limits iova to specified range (in pages)
+ */
+int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj,
+ struct msm_gem_address_space *aspace, uint64_t *iova,
+ u64 range_start, u64 range_end)
+{
+ int ret;
+
+ msm_gem_lock(obj);
+ ret = get_and_pin_iova_range_locked(obj, aspace, iova, range_start,
range_end);
msm_gem_unlock(obj);
+
return ret;
}
+int msm_gem_get_and_pin_iova_locked(struct drm_gem_object *obj,
+ struct msm_gem_address_space *aspace, uint64_t *iova)
+{
+ return get_and_pin_iova_range_locked(obj, aspace, iova, 0, U64_MAX);
+}
+
/* get iova and pin it. Should have a matching put */
int msm_gem_get_and_pin_iova(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace, uint64_t *iova)
@@ -501,21 +519,31 @@ uint64_t msm_gem_iova(struct drm_gem_object *obj,
}
/*
- * Unpin a iova by updating the reference counts. The memory isn't actually
- * purged until something else (shrinker, mm_notifier, destroy, etc) decides
- * to get rid of it
+ * Locked variant of msm_gem_unpin_iova()
*/
-void msm_gem_unpin_iova(struct drm_gem_object *obj,
+void msm_gem_unpin_iova_locked(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace)
{
struct msm_gem_vma *vma;
- msm_gem_lock(obj);
+ WARN_ON(!msm_gem_is_locked(obj));
+
vma = lookup_vma(obj, aspace);
if (!WARN_ON(!vma))
msm_gem_unmap_vma(aspace, vma);
+}
+/*
+ * Unpin a iova by updating the reference counts. The memory isn't actually
+ * purged until something else (shrinker, mm_notifier, destroy, etc) decides
+ * to get rid of it
+ */
+void msm_gem_unpin_iova(struct drm_gem_object *obj,
+ struct msm_gem_address_space *aspace)
+{
+ msm_gem_lock(obj);
+ msm_gem_unpin_iova_locked(obj, aspace);
msm_gem_unlock(obj);
}
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index fbad08badf43..016f616dd118 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -103,10 +103,14 @@ int msm_gem_get_iova(struct drm_gem_object *obj,
int msm_gem_get_and_pin_iova_range(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace, uint64_t *iova,
u64 range_start, u64 range_end);
+int msm_gem_get_and_pin_iova_locked(struct drm_gem_object *obj,
+ struct msm_gem_address_space *aspace, uint64_t *iova);
int msm_gem_get_and_pin_iova(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace, uint64_t *iova);
uint64_t msm_gem_iova(struct drm_gem_object *obj,
struct msm_gem_address_space *aspace);
+void msm_gem_unpin_iova_locked(struct drm_gem_object *obj,
+ struct msm_gem_address_space *aspace);
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);
--
2.26.2
