Pull drm updates from Dave Airlie:
"This contains two major new drivers:
- imagination is a first driver for Imagination Technologies devices,
it only covers very specific devices, but there is hope to grow it
- xe is a reboot of the i915 GPU (shares display) side using a more
upstream focused development model, and trying to maximise code
sharing. It's not enabled for any hw by default, and will hopefully
get switched on for Intel's Lunarlake.
This also drops a bunch of the old UMS ioctls. It's been dead long
enough.
amdgpu has a bunch of new color management code that is being used in
the Steam Deck.
amdgpu also has a new ACPI WBRF interaction to help avoid radio
interference.
Otherwise it's the usual lots of changes in lots of places.
Detailed summary:
new drivers:
- imagination - new driver for Imagination Technologies GPU
- xe - new driver for Intel GPUs using core drm concepts
core:
- add CLOSE_FB ioctl
- remove old UMS ioctls
- increase max objects to accomodate AMD color mgmt
encoder:
- create per-encoder debugfs directory
edid:
- split out drm_eld
- SAD helpers
- drop edid_firmware module parameter
format-helper:
- cache format conversion buffers
sched:
- move from kthread to workqueue
- rename some internals
- implement dynamic job-flow control
gpuvm:
- provide more features to handle GEM objects
client:
- don't acquire module reference
displayport:
- add mst path property documentation
fdinfo:
- alignment fix
dma-buf:
- add fence timestamp helper
- add fence deadline support
bridge:
- transparent aux-bridge for DP/USB-C
- lt8912b: add suspend/resume support and power regulator support
panel:
- edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
- chromebook panel support
- elida-kd35t133: rework pm
- powkiddy RK2023 panel
- himax-hx8394: drop prepare/unprepare and shutdown logic
- BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
- Evervision VGG644804, SDC ATNA45AF01
- nv3052c: register docs, init sequence fixes, fascontek FS035VG158
- st7701: Anbernic RG-ARC support
- r63353 panel controller
- Ilitek ILI9805 panel controller
- AUO G156HAN04.0
simplefb:
- support memory regions
- support power domains
amdgpu:
- add new 64-bit sequence number infrastructure
- add AMD specific color management
- ACPI WBRF support for RF interference handling
- GPUVM updates
- RAS updates
- DCN 3.5 updates
- Rework PCIe link speed handling
- Document GPU reset types
- DMUB fixes
- eDP fixes
- NBIO 7.9/7.11 updates
- SubVP updates
- XGMI PCIe state dumping for aqua vanjaram
- GFX11 golden register updates
- enable tunnelling on high pri compute
amdkfd:
- Migrate TLB flushing logic to amdgpu
- Trap handler fixes
- Fix restore workers handling on suspend/resume
- Fix possible memory leak in pqm_uninit()
- support import/export of dma-bufs using GEM handles
radeon:
- fix possible overflows in command buffer checking
- check for errors in ring_lock
i915:
- reorg display code for reuse in xe driver
- fdinfo memory stats printing
- DP MST bandwidth mgmt improvements
- DP panel replay enabling
- MTL C20 phy state verification
- MTL DP DSC fractional bpp support
- Audio fastset support
- use dma_fence interfaces instead of i915_sw_fence
- Separate gem and display code
- AUX register macro refactoring
- Separate display module/device parameters
- Move display capabilities debugfs under display
- Makefile cleanups
- Register cleanups
- Move display lock inits under display/
- VLV/CHV DPIO PHY register and interface refactoring
- DSI VBT sequence refactoring
- C10/C20 PHY PLL hardware readout
- DPLL code cleanups
- Cleanup PXP plane protection checks
- Improve display debug msgs
- PSR selective fetch fixes/improvements
- DP MST fixes
- Xe2LPD FBC restrictions removed
- DGFX uses direct VBT pin mapping
- more MTL WAs
- fix MTL eDP bug
- eliminate use of kmap_atomic
habanalabs:
- sysfs entry to identify a device minor id with debugfs path
- sysfs entry to expose device module id
- add signed device info retrieval through INFO ioctl
- add Gaudi2C device support
- pcie reset prepare/done hooks
msm:
- Add support for SDM670, SM8650
- Handle the CFG interconnect to fix the obscure hangs / timeouts
- Kconfig fix for QMP dependency
- use managed allocators
- DPU: SDM670, SM8650 support
- DPU: Enable SmartDMA on SM8350 and SM8450
- DP: enable runtime PM support
- GPU: add metadata UAPI
- GPU: move devcoredumps to GPU device
- GPU: convert to drm_exec
ivpu:
- update FW API
- new debugfs file
- a new NOP job submission test mode
- improve suspend/resume
- PM improvements
- MMU PT optimizations
- firmware profile frequency support
- support for uncached buffers
- switch to gem shmem helpers
- replace kthread with threaded irqs
rockchip:
- rk3066_hdmi: convert to atomic
- vop2: support nv20 and nv30
- rk3588 support
mediatek:
- use devm_platform_ioremap_resource
- stop using iommu_present
- MT8188 VDOSYS1 display support
panfrost:
- PM improvements
- improve interrupt handling as poweroff
qaic:
- allow to run with single MSI
- support host/device time sync
- switch to persistent DRM devices
exynos:
- fix potential error pointer dereference
- fix wrong error checking
- add missing call to drm_atomic_helper_shutdown
omapdrm:
- dma-fence lockdep annotation fix
tidss:
- dma-fence lockdep annotation fix
- support for AM62A7
v3d:
- BCM2712 - rpi5 support
- fdinfo + gputop support
- uapi for CPU job handling
virtio-gpu:
- add context debug name"
* tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm: (2340 commits)
drm/amd/display: Allow z8/z10 from driver
drm/amd/display: fix bandwidth validation failure on DCN 2.1
drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
drm/amd/display: Move fixpt_from_s3132 to amdgpu_dm
drm/amd/display: Fix recent checkpatch errors in amdgpu_dm
Revert "drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole"
drm/amd/display: avoid stringop-overflow warnings for dp_decide_lane_settings()
drm/amd/display: Fix power_helpers.c codestyle
drm/amd/display: Fix hdcp_log.h codestyle
drm/amd/display: Fix hdcp2_execution.c codestyle
drm/amd/display: Fix hdcp_psp.h codestyle
drm/amd/display: Fix freesync.c codestyle
drm/amd/display: Fix hdcp_psp.c codestyle
drm/amd/display: Fix hdcp1_execution.c codestyle
drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init
drm/amdkfd: Fix iterator used outside loop in 'kfd_add_peer_prop()'
drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()'
drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c
drm/amdgpu: Fix '*fw' from request_firmware() not released in 'amdgpu_ucode_request()'
drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
...
hl_device_cond_reset() might be called with the hard reset flag unset,
because a compute reset upon device release as part of a graceful reset
is valid.
If the conditions for graceful reset are not met, hl_device_reset() will
be called for an immediate reset. In this case a compute reset is not
valid, so it will be replaced with a hard reset together with a debug
message about it.
This message might be confusing, as it implies that a compute reset was
requested when it shouldn't. To prevent this confusion, set the hard
reset flag in hl_device_cond_reset() if going to an immediate reset.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Stop rescheduling another heartbeat check when EQ heartbeat check fails
as it generates confusing logs in dmesg that the heartbeat fails.
Signed-off-by: Farah Kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Gaudi2 with PCI revision ID with the value of '3' represents Gaudi2C
device and should be detected and initialized as Gaudi2.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Add error log when no eq event is received from FW,
to cover a scenario when FW is stuck for some reason.
In such case driver will not receive neither the eq error interrupt
or the eq heartbeat event, and will just initiate a reset without
indication in the dmesg about the reason.
Signed-off-by: Farah Kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Notifies the user which device was removed. It is important in
a server with multiple devices.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>
Currently we use dynamic allocation inside the irq handler
in order to allocate free node to be used for the free jobs.
This operation is expensive, especially when we deal with large
burst of events records that get released at the same time.
The alternative is to have pre allocated pool of free nodes
and just fetch nodes from this pool at irq handling time instead
of allocating them.
In case the pool becomes full, then the driver will fallback to
dynamic allocations.
As part of the optimization also update the unregister flow
upon re-using a timestamp record, by making the operation much
simpler and quicker. We already have the record in the registration
flow and now we just seek to re-use with different interrupt.
Therefore, no need to look for buffer according to the user handle.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
After the heartbeat mechanism is now expanded to be used also
for EQ health check, we shouldn't send heartbeat messages
to FW before driver allow events to be received from FW.
Because if the driver will send two heartbeats before it enables
events to be received from FW, then the EQ health check
will fail and reset the device.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Add mechanism for fw eq health check. this will be done using two flows:
using the heartbeat mechanism and raising a dedicated interrupt to
indicate an eq failure like EQ full.
This patch will add implementation for the eq heartbeat for gaudi2 asic.
More info about the heartbeat mechanism:
Expand the heartbeat mechanism to monitor a new event that
will be sent from FW upon receiving heartbeat message.
that way driver can know that the eq is working or not.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Because it is not used and also, for graceful reset to work
those ioctls should run on the compute device.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Register the compute device as an accel device, and remove the creation
of the habanalabs compute char device.
The IOCTLs in this patch are still handled by the current driver
handler. Moving to DRM IOCTL handling requires moving the IOCTLs
numbers to a specific range, so it will be handled in subsequent
patches.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
User gets notification for every engine error report, but he still
lacks the exact engine information. Hence, we allow user to query
for the exact engine reported an error.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
After being notified about certain errors, user is expected to finish
his post-errors actions and to release the device within some timeout,
after which is deice is being reset.
The default timeout value is 5 sec, which in some case is not enough for
a user application to collect debug data.
Increase the default value to 30 sec.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
If scrubbing memory after user released device has failed it means
the device is in a bad state and should be reset.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>
Our simulator supports idle check so no need anymore to check if pdev
exists.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>
Every time an FD is returned to the user, the driver adds
a corresponding private structure to the list.
Yet, it's still a list of private structures rather than of FDs.
Remove, as well, an unnecessary comment.
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Because we might still be using related resources, decrementing PID's
reference count should be done at later stages of the device release.
A good place is right after the representing private structure is
removed from LKD's list.
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
As part of driver teardown, we attempt to kill all user processes.
It shouldn't fail, but if it does we want to print the error code that
the kapi returned to us.
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
hl_device_status() returns the status of an acquired device.
If a device is going down (following an rmmod cmd),
it should be marked as an unusable/malfunctioning device, and
hence should not be acquired.
However, since this was not the case so far (i.e., a device going
down would inaccurately return 'in reset' status allowing the user
to acquire the device) it introduced a bug where as part of a reset
flow, the driver could not kill processes that have not run yet, and
since those processes aren't blocked from reacquiring a device,
we get eventually a new flow of a driver attempting to kill all
processes in a list that can't be ever really empty.
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
If hl_device_cond_reset() is called while a reset is already pending but
hasn't started, the reset request will be dropped.
If the flags of the new request are more severe, e.g. a hard reset while
the pending reset is a compute reset, the eventual reset won't be
suitable for the device status.
To prevent such cases, update the pending reset flags with the new
requests flags before the requests are dropped.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
When a H/W event is received while a user is registered to events, no
immediate hard reset will happen, and instead the user will be notified
and will have some time to handle it and eventually release the
device, after which the reset will be done.
If a user, as part of the handling and as part of the cleanup steps
towards releasing the device, unregisters from receiving those events,
and at that time an adjacent H/W event is received, it will be assumed
that the user is not registered to events and thus an immediate hard
reset is required.
To prevent such an unwanted immediate reset, modify the driver to
perform it if the user is not registered to events AND we don't already
have a pending reset for a previous H/W event.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Moved error info reset code to single function for future use from
other places in the driver.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
There were a few places where simulator only code got into the upstream.
Remove those places that can confuse other developers.
Fixes: 2a0a839b6a ("habanalabs: extend fatal messages to contain PCI info")
Cc: Moti Haimovski <mhaimovski@habana.ai>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Currently the debugfs root folder and files for a device are created at
an early step, before the device initialization and before the char
device and sysfs files are exposed to user.
As there is no real reason not to do it together with the device
creation, postpone it to be done right afterwards.
The initialization of the debugfs entry structure is left in its
current position because it is used before creating the files.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Currently upon a heartbeat failure, we don't know if the failure
is due to firmware hang or due to a bad PCI link. Hence, we
are reading a PCI config space register with a known value (vendor ID)
so we will know which of the two possibilities caused the heartbeat
failure.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Aborting CS completions should be in command_submission.c but aborting
waiting for user interrupts should be in device.c.
This separation is also for adding more abort operations in the future.
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Receiving events from FW, while the device is in hard reset, causes
a warning message in Driver log. The message may point to a
problem in the Driver or FW. But It also can appear as a result
of events that have been sent from FW just before the hard reset.
In order to avoid receiving events from FW while the device is in reset
and is already in 'disabled' mode, sync the f/w events interrupt right
before setting the device to 'disabled'.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Fix an issue in hard reset flow in which the driver didn't send a
disable pci message if there was an active compute context.
In hard reset, disable pci message should be sent no matter if
a compute context exists or not.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
The disable pci message is sent in reset device. It informs the FW not
to raise more EQs. The Driver may ignore received EQs, when the device
is in disabled mode.
The duplication happens when hard reset is scheduled during compute
reset and also performs 'escalate_reset_flow'.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The memory manager IDR is currently destroyed when user releases the
file descriptor.
However, at this point the user context might be still held, and memory
buffers might be still in use.
Later on, calls to release those buffers will fail due to not finding
their handles in the IDR, leading to a memory leak.
To avoid this leak, split the IDR destruction from the memory manager
fini, and postpone it to hpriv_release() when there is no user context
and no buffers are used.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
compose_device_in_use_info() was added to handle the snprintf() return
value in a single place.
However, the buffer size in print_device_in_use_info() is set such that
it would be enough for the max possible print, so
compose_device_in_use_info() is not really needed.
Moreover, scnprintf() can be used instead of snprintf(), to save the
check if the return value larger than the given size.
Cc: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Since hw_fini return error code for failure indication, we should
check its return value. Currently it might only fail upon soft-reset
from hl_device_reset. Later patch will add hw_fini failure in case of
polling timeout in hard-reset.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Compute driver threads names will start with hlX-*, when X is the
device id.
This will help distinguish them from the NIC thread names.
Signed-off-by: Sagiv Ozeri <sozeri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
smatch reports
drivers/accel/habanalabs/common/device.c:2619:6: warning:
symbol 'hl_capture_hw_err' was not declared. Should it be static?
drivers/accel/habanalabs/common/device.c:2641:6: warning:
symbol 'hl_capture_fw_err' was not declared. Should it be static?
both are only used in device.c, so they should be static
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
The cpu accessible dma allocations use the gen_pool api which actually
does not allocate new memory from the system but manages memory already
allocated before. When tracing this together with real dma
allocation/free it cause confusing logs like a '0' dma address and
a cpu address appearing twice etc.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
in the out_err flow, combine the two cases of soft-reset since
they have mostly common code. In addition unlock reset_info.lock
after touching reset count.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
The graceful reset mechanism is currently enabled only for reset
requests that will end up with hard-reset.
In future, reset requests due to errors in some device engines, are
going to be modified to request compute-reset, as the much longer
hard-reset is not really needed there.
To allow it, enable graceful reset also for compute-reset, and reset
after user releases the device won't be escalated to hard-reset in those
cases.
If watchdog expires and user didn't release the device, hard-reset will
be initiated in any case.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
In case a compute reset has failed or a request for a hard reset has
just arrived, then we escalate current reset procedure from compute
to hard-reset.
In such a case, the FW should be aware of the updated error cause,
and if LKD is the one who performs the reset (rather than the FW),
then we ask the FW to disable PCI access.
We would also like to have relevant debug info and therefore
we print the currently escalating reset type.
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Enhance the existing user notifications by adding a HW and FW critical
event bits to be used when a HW or FW event occur that requires
both SW abort and hard-resetting the chip.
Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
When user closes the device file descriptor, it is checked whether the
device is still in use, and a message is printed if it is.
To make this message more informative, add to this print also the reason
due to which the device is considered as in use.
The possible reasons which are checked for now are active CS and
exported dma-buf.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
It is more concise than to pass it to device init. Once we will add the
accel class, then we won't need to change the function signatures.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Move the cdev creation code from the main hdev init function to
a separate function. This will make the code more readable once we
add the accel registration code (instead/in addition to legacy
cdev).
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
If resetting device upon release while the release watchdog work is
scheduled, the compute reset is replaced with hard reset.
In this case, need to clear the in_compute_reset indication in the
device reset information structure.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
