mirror-linux/drivers/gpu
Alex Sierra 71cbfeb381 drm/amdkfd: avoid conflicting address mappings
[Why]
Avoid conflict with address ranges mapped by SVM
mechanism that try to be allocated again through
ioctl_alloc in the same process. And viceversa.

[How]
For ioctl_alloc_memory_of_gpu allocations
Check if the address range passed into ioctl memory
alloc does not exist already in the kfd_process
svms->objects interval tree.

For SVM allocations
Look for the address range into the interval tree VA from
the VM inside of each pdds used in a kfd_process.

Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-10-13 14:14:34 -04:00
..
drm drm/amdkfd: avoid conflicting address mappings 2021-10-13 14:14:34 -04:00
host1x
ipu-v3 Updates to the interrupt core and driver subsystems: 2021-08-30 14:38:37 -07:00
trace
vga
Makefile