linux-stable.git/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c, branch v4.15

drm/amdkfd: Fix SDMA oversubsription handling

2017-11-26T09:31:32+00:00

SDMA only supports a fixed number of queues. HWS cannot handle
oversubscription.

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

drm/amdkfd: Register/Deregister process on qpd resolution

2017-11-01T23:21:30+00:00

Process registration needs to happen on each device. So use per-device
queue lists to determine when to register/deregister the process.

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

drm/amdkfd: Limit queue number per process and device to 127

2017-09-27T04:09:55+00:00

HWS uses bit 7 in the queue number of the map process packet for an
undocumented feature. Therefore the queue number per process and
device must be 127 or less.

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

drm/amdkfd: Clean up process queue management

2017-09-27T04:09:54+00:00

Removed unused num_concurrent_processes.

Implemented counting of queues in QPD. This makes counting the queue
list repeatedly in several places unnecessary.

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

drm/amdkfd: Compress unnecessary function parameters

2017-09-27T04:09:53+00:00

Signed-off-by: Yong Zhao 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

drm/amdkfd: Improve process termination handling

2017-09-27T04:09:52+00:00

Separate device queue termination from process queue manager
termination. Unmap all queues at once instead of one at a time.
Unmap device queues before the PASID is unbound, in the
kfd_process_iommu_unbind_callback.

When resetting wavefronts in non-HWS mode, do it before the VMID is
released.

Signed-off-by: Ben Goz 
Signed-off-by: shaoyun liu 
Signed-off-by: Amber Lin 
Signed-off-by: Yong Zhao 
Signed-off-by: Felix Kuehling 
Signed-off-by: Oded Gabbay

drm/amdkfd: Use VMID bitmap from KGD v2

2017-09-20T22:10:18+00:00

The hard-coded values related to VMID were removed in KFD, as those
values can be calculated in the KFD initialization function.

v2: remove unnecessary local variable

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

drm/amdkfd: remove memset before memcpy

2017-08-29T19:03:35+00:00

calling memcpy immediately after memset with the same region of memory
makes memset redundant.

Signed-off-by: Himanshu Jha 
Signed-off-by: Oded Gabbay

drm/amdkfd: Handle remaining BUG_ONs more gracefully v2

2017-08-16T03:00:12+00:00

In most cases, BUG_ONs can be replaced with WARN_ON with an error
return. In some void functions just turn them into a WARN_ON and
possibly an early exit.

v2:
* Cleaned up error handling in pm_send_unmap_queue
* Removed redundant WARN_ON in kfd_process_destroy_delayed

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

drm/amdkfd: Remove BUG_ONs for NULL pointer arguments

2017-08-16T03:00:09+00:00

Remove BUG_ONs that check for NULL pointer arguments that are
dereferenced in the same function. Dereferencing the NULL pointer
will generate a BUG anyway, so the explicit check is redundant and
unnecessary overhead.

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