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author	Lan Xiao <Lan.Xiao@amd.com>
	Thu, 12 Jul 2018 02:32:51 +0000 (22:32 -0400)
committer	Oded Gabbay <oded.gabbay@gmail.com>
	Thu, 12 Jul 2018 02:32:51 +0000 (22:32 -0400)
commit	58e698861255129a00765b69c0499bc0d044feb4
tree	dc60a3f4a77dfcc224992c4bf0f0f9705c2fc7cd	tree \| snapshot
parent	2640c3facbd6e21e63c95f19588cc24913a263cd	commit \| diff

drm/amdkfd: fix zero reading of VMID and PASID for Hawaii

Upon VM Fault, the VMID and PASID written by HW are zeros in
Hawaii. Instead of reading from ih_ring_entry, read directly
from the registers. This workaround fix the soft hang issues
caused by mishandled VM Fault in Hawaii.

Signed-off-by: Lan Xiao <Lan.Xiao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

John Crispins staging tree

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drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c		diff \| blob \| history
drivers/gpu/drm/amd/amdkfd/cik_event_interrupt.c		diff \| blob \| history
drivers/gpu/drm/amd/amdkfd/kfd_device.c		diff \| blob \| history
drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c		diff \| blob \| history
drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c		diff \| blob \| history
drivers/gpu/drm/amd/amdkfd/kfd_priv.h		diff \| blob \| history
drivers/gpu/drm/amd/include/kgd_kfd_interface.h		diff \| blob \| history