Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NJammy Zhou <Jammy.Zhou@amd.com>

Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NJammy Zhou <Jammy.Zhou@amd.com>

In order not to occupy the current core and thus prevent the core from
servicing IOMMU PPR requests, this patch replaces the call in DQM to
cpu_relax() with a call to schedule().
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>

This patch fixes a minor bug in allocate_hqd(), where the loop run from the
next-to-allocate pipe until the number of pipes.

This is wrong because we need to consider the possibility where
next-to-allocate pipe is not 0, and thus, the for-loop only checks part of the
pipes and doesn't wrap-around, as it supposed to do.

Therefore, we add another counting variable to make sure we go over all the
pipes, regardless of where we start to look at the first iteration of the loop.

This bug only affected non-HWS mode. In HWS mode, the CP fw is responsible for
allocating the HQD.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>

This patch change the calls throughout the amdkfd driver from the old kfd-->kgd
interface to the new kfd gtt sa inside amdkfd

v2: change the new call in sdma code that appeared because of the sdma feature
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds support for SDMA user-mode queues to the QCM - the Queue
management system that manages queues-per-device and queues-per-process.

v2: Remove calls to interface function that initializes sdma engines.

v3: Use the new names of some of the defines.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch splits the current kfd_get_process_device_data() to two
functions, one that specifically creates a pdd and another one which
just do lookup.

This is done to enhance the readability and maintainability of the code.
Signed-off-by: NAlexey Skidanov <Alexey.Skidanov@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

This patch fixes a bug where deallocate_vmid() didn't actually unmap the
VMID<-->PASID mapping (in the registers).
That can cause undefined behavior.

This bug only occurs in non-HWS mode.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>

This patch fixes a bug in DQM, where the MQD of a newly created compute queue
is not loaded to an HQD slot. As a result, the CP never reads packets from this
queue.

This bug happens only in non-HWS (hardware scheduling) mode. In HWS mode, the
CP is responsible of loading MQDs to HQDs slots.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>

This patch fixes a device QCM bug, where the number of queues were not
counted correctly for the operation of update queue. The count was incorrect
as there was no regard to the previous state of the queue.
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

This patch starts to add support for the VI APU in the DQM module.

Because most (more than 90%) of the DQM code is shared among AMD's APUs, we
chose a design that performs most/all the code in the shared DQM file
(kfd_device_queue_manager.c). If there is H/W specific code to be executed,
than it is written in an asic-specific extension function for that H/W.

That asic-specific extension function is called from the shared function at the
appropriate time. This requires that for every asic-specific extension function
that is implemented in a specific ASIC, there will be an equivalent
implementation in ALL ASICs, even if those implementations are just stubs.

That way we achieve:

- Maintainability: by having one copy of most of the code, we only need to
  fix bugs at one locations

- Readability: very clear what is the shared code and what is done per ASIC

- Extensibility: very easy to add new H/W specific files/functions
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch does some re-org on the device_queue_manager structure. It takes out
all the function pointers from the structure and puts them in a new structure,
called device_queue_manager_ops. Then, it puts an instance of that structure
inside device_queue_manager.

This re-org is done to prepare the DQM module to support more than one AMD APU
(Kaveri).
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

The mqds array members are not freed when dqm is uninitialized.
Reviewed-by: NBen Goz <Ben.Goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlexey Skidanov <Alexey.Skidanov@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

struct device_process_node was allocated during process registration but
not released at process deregistration.
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NJay Cornwall <jay.cornwall@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

This patch rewrites destroy_queue_nocpsch() as the current logic that is
implemented in the function is completely flawed.

This function is used only in non-HWS mode.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>

As the MQD types are common across all AMD GPUs/APUs, let's remove the CIK part
from the name.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

Because amdkfd will need to work both with radeon and amdgpu, don't include
header files that are in radeon's folder.

Instead, use the common amd include folder and move amdkfd specific defines to
amdkfd header files.
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch removes a call to kfd-->kgd interface function that is doing H/W
initialization. That function is moved into radeon to be part of the common
H/W initialization sequence. The interface function will be deleted.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

The queue scheduler divides into two sections, one section is process bounded
and the other section is device bounded.
The device bounded section is handled by this module.
The DQM module handles queue setup, update and tear-down from the device side.
It also supports suspend/resume operation.

v3: Changed device_init, added the use of the new gart allocation functions an
Added documentation.

v4:

Fixed a race in DQM queue scheduler where dqm->lock must be held when accessing
dqm->queue_count and dqm->processes_count. This fixes runlist IB allocation
failures when DQM is under load.

Fixed race in DQM queue destruction where queues being destroyed must be
removed from qpd->queues_list prior to preemption, or concurrent queue
creation activity may reschedule them while their MQD is destroyed.

Fixed EOP queue size setting in CP_HPD_EOP_CONTROL, because the size is
specified as (log2(size_dwords)-1). The previous calculation assumed the
size was specified in bytes, which caused interference between EOP queues
when multiple MEC pipelines were active.

v5:

Move amdkfd from drm/radeon/ to drm/amd/
Change format of mqd structure to match latest KV firmware
Add support for AQL queues creation to enable working with open-source HSA
runtime
Remove unused unmap_queue function
Various fixes (Style, typos)
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NJay Cornwall <jay.cornwall@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>