linux-toradex.git/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h, branch v4.15-rc2

drm/amdgpu: SR-IOV data exchange between PF&VF

2017-10-19T19:26:59+00:00

SR-IOV need to exchange some data between PF&VF through shared VRAM

PF will copy some necessary firmware and information to the shared
VRAM. It also requires some information from VF. PF will send a
key through mailbox2 to help guest calculate checksum so that it can
verify whether the data is correct.

So check the data on the specified offset of the shared VRAM, if the
checksum is right, read values from it and write some VF information
next to the data from PF.

Signed-off-by: Horace Chen 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amdgpu: fix vf error handling

2017-09-28T20:03:20+00:00

The error handling for virtual functions assumed a single
vf per VM and didn't properly account for bare metal.  Make
the error arrays per device and add locking.

Reviewed-by: Gavin Wan 
Signed-off-by: Alex Deucher

drm/amdgpu: cleanup static CSA handling

2017-08-17T19:46:05+00:00

Move the CSA bo_va from the VM to the fpriv structure.

Signed-off-by: Christian König 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amdgpu: Support passing amdgpu critical error to host via GPU Mailbox.

2017-07-14T15:05:52+00:00

This feature works for SRIOV enviroment. For non-SRIOV enviroment, the
trans_error function does nothing.

The error information includes error_code (16bit), error_flags(16bit)
and error_data(64bit). Since there are not many errors, we keep the
errors in an array and transfer all errors to Host before amdgpu
initialization function (amdgpu_device_init) exit.

Signed-off-by: Gavin Wan 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amdgpu:use job* to replace voluntary

2017-05-24T21:40:38+00:00

that way we can know which job cause hang and
can do per sched reset/recovery instead of all
sched.

Signed-off-by: Monk Liu 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/amdgpu: Move kiq ring lock out of virt structure

2017-05-24T21:40:12+00:00

The usage of kiq should not depend on the virtualization.

Signed-off-by: Shaoyun Liu 
Reviewed-by:Andres Rodriquez 
Signed-off-by: Alex Deucher

drm/amdgpu/virt: add two functions for MM table

2017-04-28T21:32:58+00:00

Add two functions to allocate & free MM table memory.

Signed-off-by: Xiangliang Yu 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amdgpu/virt: add structure for MM table

2017-03-30T03:55:10+00:00

Add new structure for MM table for multi media scheduler of sriov.

Signed-off-by: Xiangliang Yu 
Reviewed-by: Alex Deucher 
Reviewed-by: Monk Liu 
Acked-by: Christian KÃ¶nig 
Signed-off-by: Alex Deucher

drm/amdgpu:use work instead of delay-work

2017-03-30T03:53:11+00:00

no need to use a delay work since we don't know how
much time hypervisor takes on FLR, so just polling
and waiting in a work.

Signed-off-by: Monk Liu 
Reviewed-by: Alex Deucher 
Reviewed-by: Xiangliang Yu 
Signed-off-by: Alex Deucher

drm/amdgpu:add lock_reset for SRIOV

2017-03-30T03:52:46+00:00

this lock is used for sriov_gpu_reset, only get this mutex
can run into sriov_gpu_reset.

we have couple source triggers gpu_reset for SRIOV:
1) submit timedout and trigger reset voluntarily
2) invalid instruction detected by ENGINE and trigger reset voluntarily
2) hypervisor found world switch hang and trigger flr and notify guest to
   do reset.

all need take care and we need a mutex to protect the consistency of
reset routine.

Signed-off-by: Monk Liu 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher