linux-stable.git/drivers/gpu/drm/amd/include/kgd_kfd_interface.h, branch v4.18

drm/amdgpu: Add doorbell routing info to kgd2kfd_shared_resources

2018-04-10T21:33:02+00:00

This is needed for Vega10 and later ASICs to let KFD know which
doorbells can be used for SDMA and CP queues respectively.

Signed-off-by: Felix Kuehling 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdgpu: Remove unused interface from kfd2kgd interface

2018-04-10T21:32:58+00:00

Signed-off-by: Felix Kuehling 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdkfd: Add quiesce_mm and resume_mm to kgd2kfd_calls

2018-03-23T19:32:32+00:00

These interfaces allow KGD to stop and resume all GPU user mode queue
access to a process address space. This is needed for handling MMU
notifiers of userptrs mapped for GPU access in KFD VMs.

Signed-off-by: Felix Kuehling 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdkfd: Add ioctls for GPUVM memory management

2018-03-15T21:27:51+00:00

v2:
* Fix error handling after kfd_bind_process_to_device in
  kfd_ioctl_map_memory_to_gpu
v3:
* Add ioctl to acquire VM from a DRM FD
v4:
* Return number of successful map/unmap operations in failure cases
* Facilitate partial retry after failed map/unmap
* Added comments with parameter descriptions to new APIs
* Defined AMDKFD_IOC_FREE_MEMORY_OF_GPU write-only

Signed-off-by: Felix Kuehling 
Acked-by: Christian König 
Signed-off-by: Oded Gabbay

drm/amdgpu: Add kfd2kgd interface to acquire an existing VM

2018-03-15T21:27:43+00:00

This allows acquiring an existing VM from a render node FD to use it
for a compute process.

Such VMs get destroyed when the original file descriptor is released.
Added a callback from amdgpu_vm_fini to handle KFD VM destruction
correctly in this case.

v2:
* Removed vm->vm_context check in amdgpu_amdkfd_gpuvm_destroy_cb,
  check vm->process_info earlier instead

Signed-off-by: Felix Kuehling 
Acked-by: Christian König 
Signed-off-by: Oded Gabbay

drm/amdgpu: Add submit IB function for KFD

2018-02-07T01:32:39+00:00

This can be used for flushing caches when not using the HWS.

Signed-off-by: Felix Kuehling 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdgpu: Add GPUVM memory management functions for KFD

2018-02-07T01:32:38+00:00

v2:
* Removed unused flags from struct kgd_mem
* Updated some comments
* Added a check to unmap_memory_from_gpu whether BO was mapped

v3: add mutex_destroy in relevant places

Signed-off-by: Felix Kuehling 
Acked-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdgpu: Update kgd2kfd_shared_resources for dGPU support

2018-02-07T01:32:36+00:00

Add GPUVM size and DRM render node. Also add function to query the
VMID mask to avoid hard-coding it in multiple places later.

v2: cut off GPUVM size at the VA hole

Signed-off-by: Felix Kuehling 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdgpu: Add KFD eviction fence

2018-02-07T01:32:35+00:00

This fence is used by KFD to keep memory resident while user mode
queues are enabled. Trying to evict memory will trigger the
enable_signaling callback, which starts a KFD eviction, which
involves preempting user mode queues before signaling the fence.
There is one such fence per process.

v2:
* Grab a reference to mm_struct
* Dereference fence after NULL check
* Simplify fence release, no need to signal without anyone waiting
* Added signed-off-by Harish, who is the original author of this code

v3:
* update MAINTAINERS file
* change amd_kfd_ prefix to amdkfd_
* remove useless initialization of variable to NULL

v4:
* set amdkfd_fence_ops to be static
* Suggested by: Fengguang Wu 

Signed-off-by: Harish Kasiviswanathan 
Signed-off-by: Felix Kuehling 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdgpu: Remove unused kfd2kgd interface

2018-02-07T01:32:34+00:00

Signed-off-by: Felix Kuehling 
Reviewed-by: Christian König 
Signed-off-by: Oded Gabbay