[PATCH v2 01/21] drm/amdgpu: Introduce GEM object functions

Thomas Zimmermann
2020-09-15T23:01:39Z

GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
which is non-trivial to convert.

v2:
* move object-function instance to amdgpu_gem.c (Christian)
* set callbacks in amdgpu_gem_object_create() (Christian)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ------
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 23 +++++++++++++++++-----
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h | 5 -----
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 1 +
4 files changed, 19 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 6edde2b9e402..840ca8f9c1e1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1505,19 +1505,13 @@ static struct drm_driver kms_driver = {
.lastclose = amdgpu_driver_lastclose_kms,
.irq_handler = amdgpu_irq_handler,
.ioctls = amdgpu_ioctls_kms,
- .gem_free_object_unlocked = amdgpu_gem_object_free,
- .gem_open_object = amdgpu_gem_object_open,
- .gem_close_object = amdgpu_gem_object_close,
.dumb_create = amdgpu_mode_dumb_create,
.dumb_map_offset = amdgpu_mode_dumb_mmap,
.fops = &amdgpu_driver_kms_fops,

.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_export = amdgpu_gem_prime_export,
.gem_prime_import = amdgpu_gem_prime_import,
- .gem_prime_vmap = amdgpu_gem_prime_vmap,
- .gem_prime_vunmap = amdgpu_gem_prime_vunmap,
.gem_prime_mmap = amdgpu_gem_prime_mmap,

.name = DRIVER_NAME,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index aa7f230c71bf..aeecd5dc3ce4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -36,9 +36,12 @@

#include "amdgpu.h"
#include "amdgpu_display.h"
+#include "amdgpu_dma_buf.h"
#include "amdgpu_xgmi.h"

-void amdgpu_gem_object_free(struct drm_gem_object *gobj)
+static const struct drm_gem_object_funcs amdgpu_gem_object_funcs;
+
+static void amdgpu_gem_object_free(struct drm_gem_object *gobj)
{
struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj);

@@ -87,6 +90,7 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev, unsigned long size,
return r;
}
*obj = &bo->tbo.base;
+ (*obj)->funcs = &amdgpu_gem_object_funcs;

return 0;
}
@@ -119,8 +123,8 @@ void amdgpu_gem_force_release(struct amdgpu_device *adev)
* Call from drm_gem_handle_create which appear in both new and open ioctl
* case.
*/
-int amdgpu_gem_object_open(struct drm_gem_object *obj,
- struct drm_file *file_priv)
+static int amdgpu_gem_object_open(struct drm_gem_object *obj,
+ struct drm_file *file_priv)
{
struct amdgpu_bo *abo = gem_to_amdgpu_bo(obj);
struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev);
@@ -152,8 +156,8 @@ int amdgpu_gem_object_open(struct drm_gem_object *obj,
return 0;
}

-void amdgpu_gem_object_close(struct drm_gem_object *obj,
- struct drm_file *file_priv)
+static void amdgpu_gem_object_close(struct drm_gem_object *obj,
+ struct drm_file *file_priv)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
@@ -211,6 +215,15 @@ void amdgpu_gem_object_close(struct drm_gem_object *obj,
ttm_eu_backoff_reservation(&ticket, &list);
}

+static const struct drm_gem_object_funcs amdgpu_gem_object_funcs = {
+ .free = amdgpu_gem_object_free,
+ .open = amdgpu_gem_object_open,
+ .close = amdgpu_gem_object_close,
+ .export = amdgpu_gem_prime_export,
+ .vmap = amdgpu_gem_prime_vmap,
+ .vunmap = amdgpu_gem_prime_vunmap,
+};
+
/*
* GEM ioctls.
*/
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h
index e0f025dd1b14..637bf51dbf06 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h
@@ -33,11 +33,6 @@
#define AMDGPU_GEM_DOMAIN_MAX 0x3
#define gem_to_amdgpu_bo(gobj) container_of((gobj), struct amdgpu_bo, tbo.base)

-void amdgpu_gem_object_free(struct drm_gem_object *obj);
-int amdgpu_gem_object_open(struct drm_gem_object *obj,
- struct drm_file *file_priv);
-void amdgpu_gem_object_close(struct drm_gem_object *obj,
- struct drm_file *file_priv);
unsigned long amdgpu_gem_timeout(uint64_t timeout_ns);

/*
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index ac043baac05d..c4e82a8fa53f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -561,6 +561,7 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
if (bo == NULL)
return -ENOMEM;
+
drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size);
INIT_LIST_HEAD(&bo->shadow_list);
bo->vm_bo = NULL;
--
2.28.0