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

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Am 15.09.20 um 16:59 schrieb Thomas Zimmermann:
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@xxxxxxx>
---
  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;
+

The newline is not unrelated.

Apart from that the patch is Reviewed-by: Christian König <christian.koenig@xxxxxxx>.

But I think we need some smoke testing of it.

Christian.

  	drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size);
  	INIT_LIST_HEAD(&bo->shadow_list);
  	bo->vm_bo = NULL;

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