kernel/drivers/gpu/drm/amd/amdkfd/kfd_module.c, branch linux-4.17.y

drm/amdkfd: Use ordered workqueue to restore processes

2018-03-23T19:30:36Z

Restoring multiple processes concurrently can lead to live-locks where each process prevents the other from validating all its BOs. v2: fix duplicate check of same variable Signed-off-by: Felix Kuehling Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

drm/amdkfd: Add module option for testing large-BAR functionality

2018-03-15T21:27:53Z

Simulate large-BAR system by exporting only visible memory. This limits the amount of available VRAM to the size of the BAR, but enables CPU access to VRAM. Signed-off-by: Felix Kuehling Acked-by: Oded Gabbay Signed-off-by: Oded Gabbay

drm/amdkfd: Implement KFD process eviction/restore

2018-02-07T01:32:45Z

When the TTM memory manager in KGD evicts BOs, all user mode queues potentially accessing these BOs must be evicted temporarily. Once user mode queues are evicted, the eviction fence is signaled, allowing the migration of the BO to proceed. A delayed worker is scheduled to restore all the BOs belonging to the evicted process and restart its queues. During suspend/resume of the GPU we also evict all processes to allow KGD to save BOs in system memory, since VRAM will be lost. v2: * Account for eviction when updating of q->is_active in MQD manager Signed-off-by: Harish Kasiviswanathan Signed-off-by: Felix Kuehling Acked-by: Oded Gabbay Signed-off-by: Oded Gabbay

drm/amdkfd: Module option to disable CRAT table

2017-12-09T04:09:03Z

Some systems have broken CRAT tables. Add a module option to ignore a CRAT table. Signed-off-by: Felix Kuehling Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

drm/amdkfd: Add debugfs support to KFD

2017-11-27T23:29:49Z

This commit adds several debugfs entries for kfd: kfd/hqds: dumps all HQDs on all GPUs for KFD-controlled compute and SDMA RLC queues kfd/mqds: dumps all MQDs of all KFD processes on all GPUs kfd/rls: dumps HWS runlists on all GPUs Signed-off-by: Yong Zhao Signed-off-by: Felix Kuehling Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

drm/amdkfd: map multiple processes to HW scheduler

2017-11-27T23:29:45Z

Allow HWS to to execute multiple processes on the hardware concurrently. The number of concurrent processes is limited by the number of VMIDs allocated to the HWS. A module parameter can be used for limiting this further or turn it off altogether (mainly for debugging purposes). Signed-off-by: Yong Zhao Signed-off-by: Jay Cornwall Signed-off-by: Felix Kuehling Acked-by: Oded Gabbay Signed-off-by: Oded Gabbay

drm/amdkfd: Add CWSR support

2017-11-14T21:41:19Z

This hardware feature allows the GPU to preempt shader execution in the middle of a compute wave, save the state and restore it later to resume execution. Memory for saving the state is allocated per queue in user mode and the address and size passed to the create_queue ioctl. The size depends on the number of waves that can be in flight simultaneously on a given ASIC. Signed-off-by: Shaoyun.liu Signed-off-by: Yong Zhao Signed-off-by: Felix Kuehling Signed-off-by: Oded Gabbay

drm/amdkfd: fix amdkfd use-after-free GP fault

2017-11-26T09:31:32Z

Fix GP fault caused by dev_info() reference to a struct device* after the device has been freed (use after free). kfd_chardev_exit() frees the device so 'kfd_device' should not be used after calling kfd_chardev_exit(). Signed-off-by: Randy Dunlap Signed-off-by: Oded Gabbay

drm/amdkfd: Use PASID manager from KGD

2017-09-26T17:07:04Z

Signed-off-by: Felix Kuehling Acked-by: Alex Deucher Reviewed-by: Oded Gabbay Signed-off-by: Alex Deucher

drm/amdkfd: Fix goto usage v2

2017-08-16T03:00:07Z

Remove gotos that do not feature any common cleanup, and use gotos instead of repeating cleanup commands. According to kernel.org: "The goto statement comes in handy when a function exits from multiple locations and some common work such as cleanup has to be done. If there is no cleanup needed then just return directly." v2: Applied review suggestions in create_queue_nocpsch Signed-off-by: Kent Russell Signed-off-by: Felix Kuehling Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay