[PATCH 52/59] drm/nouveau: Fill out gem_object->resv

Daniel Vetter
2019-06-14T20:37:24Z

That way we can ditch our gem_prime_res_obj implementation. Since ttm
absolutely needs the right reservation object all the boilerplate is
already there and we just have to wire it up correctly.

Note that gem/prime doesn't care when we do this, as long as we do it
before the bo is registered and someone can call the handle2fd ioctl
on it.

Aside: ttm_buffer_object.ttm_resv could probably be ditched in favour
of always passing a non-NULL resv to ttm_bo_init(). At least for gem
drivers that would avoid having two of these, on in ttm_buffer_object
and the other in drm_gem_object, one just there for confusion.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: nouveau@lists.freedesktop.org
---
drivers/gpu/drm/nouveau/nouveau_bo.c | 2 ++
drivers/gpu/drm/nouveau/nouveau_drm.c | 1 -
drivers/gpu/drm/nouveau/nouveau_gem.h | 1 -
drivers/gpu/drm/nouveau/nouveau_prime.c | 7 -------
4 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 34a998012bf6..6f1217b3e6b9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -299,6 +299,8 @@ nouveau_bo_new(struct nouveau_cli *cli, u64 size, int align,
type, &nvbo->placement,
align >> PAGE_SHIFT, false, acc_size, sg,
robj, nouveau_bo_del_ttm);
+ nvbo->gem.resv = nvbo->bo.resv;
+
if (ret) {
/* ttm will call nouveau_bo_del_ttm if it fails.. */
return ret;
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 4377b836265f..2c36319c158f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -1131,7 +1131,6 @@ driver_stub = {
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_pin = nouveau_gem_prime_pin,
- .gem_prime_res_obj = nouveau_gem_prime_res_obj,
.gem_prime_unpin = nouveau_gem_prime_unpin,
.gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
.gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.h b/drivers/gpu/drm/nouveau/nouveau_gem.h
index fe39998f65cc..9dea015387fd 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.h
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.h
@@ -33,7 +33,6 @@ extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
struct drm_file *);

extern int nouveau_gem_prime_pin(struct drm_gem_object *);
-struct reservation_object *nouveau_gem_prime_res_obj(struct drm_gem_object *);
extern void nouveau_gem_prime_unpin(struct drm_gem_object *);
extern struct sg_table *nouveau_gem_prime_get_sg_table(struct drm_gem_object *);
extern struct drm_gem_object *nouveau_gem_prime_import_sg_table(
diff --git a/drivers/gpu/drm/nouveau/nouveau_prime.c b/drivers/gpu/drm/nouveau/nouveau_prime.c
index 1fefc93af1d7..ec50017692d4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_prime.c
+++ b/drivers/gpu/drm/nouveau/nouveau_prime.c
@@ -107,10 +107,3 @@ void nouveau_gem_prime_unpin(struct drm_gem_object *obj)

nouveau_bo_unpin(nvbo);
}
-
-struct reservation_object *nouveau_gem_prime_res_obj(struct drm_gem_object *obj)
-{
- struct nouveau_bo *nvbo = nouveau_gem_object(obj);
-
- return nvbo->bo.resv;
-}
--
2.20.1