drm/amdkfd: remove kgd_dev declaration and initialization

Completes removal of kgd_dev. Direct references to amdgpu_device objects
should now be used instead.
Signed-off-by: Graham Sider <Graham.Sider@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c

@@ -72,7 +72,7 @@ void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
 	if (!kfd_initialized)
 		return;
 
-	adev->kfd.dev = kgd2kfd_probe((struct kgd_dev *)adev, vf);
+	adev->kfd.dev = kgd2kfd_probe(adev, vf);
 
 	if (adev->kfd.dev)
 		amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h

@@ -334,7 +334,7 @@ int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
 #if IS_ENABLED(CONFIG_HSA_AMD)
 int kgd2kfd_init(void);
 void kgd2kfd_exit(void);
-struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, bool vf);
+struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf);
 bool kgd2kfd_device_init(struct kfd_dev *kfd,
 			 struct drm_device *ddev,
 			 const struct kgd2kfd_shared_resources *gpu_resources);
@@ -358,7 +358,7 @@ static inline void kgd2kfd_exit(void)
 }
 
 static inline
-struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, bool vf)
+struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
 {
 	return NULL;
 }

drivers/gpu/drm/amd/amdkfd/kfd_device.c

@@ -627,12 +627,11 @@ static void kfd_gtt_sa_fini(struct kfd_dev *kfd);
 
 static int kfd_resume(struct kfd_dev *kfd);
 
-struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, bool vf)
+struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
 {
 	struct kfd_dev *kfd;
 	const struct kfd_device_info *device_info;
 	const struct kfd2kgd_calls *f2g;
-	struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 	struct pci_dev *pdev = adev->pdev;
 
 	switch (adev->asic_type) {
@@ -824,7 +823,6 @@ struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, bool vf)
 	if (!kfd)
 		return NULL;
 
-	kfd->kgd = kgd;
 	kfd->adev = adev;
 	kfd->device_info = device_info;
 	kfd->pdev = pdev;

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

@@ -228,7 +228,6 @@ struct kfd_vmid_info {
 };
 
 struct kfd_dev {
-	struct kgd_dev *kgd;
 	struct amdgpu_device *adev;
 
 	const struct kfd_device_info *device_info;

drivers/gpu/drm/amd/include/kgd_kfd_interface.h

@@ -38,8 +38,6 @@ struct amdgpu_device;
 #define KGD_MAX_QUEUES 128
 
 struct kfd_dev;
-struct kgd_dev;
-
 struct kgd_mem;
 
 enum kfd_preempt_type {