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drm/msm: convert iova to 64b

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For a5xx the gpu is 64b so we need to change iova to 64b everywhere.  On
the display side, iova is still 32b so it can ignore the upper bits.
(Although all the armv8 devices have an iommu that can map 64b pa to 32b
iova.)

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark
2016-11-11 12:06:46 -05:00
parent c83ea57601
commit 78babc1633
15 changed files with 34 additions and 32 deletions
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6
drivers/gpu/drm/msm/msm_gem.c
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@@ -309,7 +309,7 @@ put_iova(struct drm_gem_object *obj)
* the refcnt counter needs to be atomic_t.
*/
int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
uint32_t *iova)
uint64_t *iova)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
int ret = 0;
@@ -336,7 +336,7 @@ int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
}
/* get iova, taking a reference. Should have a matching put */
int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova)
int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint64_t *iova)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
int ret;
@@ -358,7 +358,7 @@ int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova)
/* get iova without taking a reference, used in places where you have
* already done a 'msm_gem_get_iova()'.
*/
uint32_t msm_gem_iova(struct drm_gem_object *obj, int id)
uint64_t msm_gem_iova(struct drm_gem_object *obj, int id)
{
struct msm_gem_object *msm_obj = to_msm_bo(obj);
WARN_ON(!msm_obj->domain[id].iova);