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Now that we have a subsystem for compute accelerators, move the
habanalabs driver to it.
This patch only moves the files and fixes the Makefiles. Future
patches will change the existing code to register to the accel
subsystem and expose the accel device char files instead of the
habanalabs device char files.
Update the MAINTAINERS file to reflect this change.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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There are a couple of device variables that are used for testing
purposes and they are set to fixed values.
Remove the variables that are not relevant anymore and document the
remaining variables.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Add the ASIC-specific code for Gaudi2. Supply (almost) all of the
function callbacks that the driver's common code need to initialize,
finalize and submit workloads to the Gaudi2 ASIC.
It also contains the code to initialize the F/W of the Gaudi2 ASIC
and to receive events from the F/W.
It contains new debugfs entry to dump razwi events. razwi is a case
where the device's engines create a transaction that reaches an
invalid destination.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Fix the following W=1 kernel warnings:
drivers/misc/habanalabs/common/pci/pci.c:454: warning: expecting
prototype for hl_fw_fini(). Prototype was for hl_pci_fini() instead.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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The required DMA mask is no longer based on input from the F/W, but it
is fixed per ASIC according to its address space.
As such, the per-ASIC function to get this value can be replaced with a
property variable.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The iATU is an internal h/w machine inside Habana's PCI controller.
Mentioning it by name doesn't say anything to the user. It is better
to say the PCI controller initialization was not done successfully.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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We don't need this workaround anymore.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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This is required from any device that is capable to perform DMA.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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When setting "DMA mask from FW" we are reading PSOC_GLOBAL_CONF register
which is allowed only once FW has done it's iATU configuration.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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iATU (internal Address Translation Unit of the PCI controller)
configuration is being done by FW right after driver enables
the PCI device. Hence, driver must add a minor sleep afterwards
in order to make sure FW finishes configuring iATU regions.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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LKD has interfaces in which it receives device address.
For instance the debugfs_read/write variants receives device address for
CFG/SRAM/DRAM for read/write and need to translate to the mapped PCI BAR
address.
In addition, the dynamic FW load protocol dictates that the address to
which the LKD will copy the image for the next FW component will be
received as a device address and can be placed either in SRAM or DRAM.
We need to distinguish those regions as the access methods to those
regions are different (in DRAM we possibly need to set the BAR base).
Looking forward this code will be used to remove duplicated code in the
debugfs_read/write that search the memory region for the input device
address.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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On PLDM, in case of NIC hangs, the ELBI reset to take much longer than
expected. As a result an increase in the ELBI reset timeout is required.
Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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As part of the securing GAUDI, the F/W will configure the PCI iATU
regions. If the driver identifies a secured PCI ID, it will know to
skip iATU configuration in a very early stage.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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Axe 'hl_pci_set_dma_mask()' and replace it with an equivalent
'dma_set_mask_and_coherent()' call.
This makes the code a bit less verbose.
It also removes an erroneous comment, because 'hl_pci_set_dma_mask()'
does not try to use a fall-back value.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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We separate some of the common code source files to different
folders for a better maintainability and testability.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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