- Add a new uAPI (under the memory ioctl) to request from the driver
to export a DMA-BUF object that represents a memory region on
the device's DRAM. This is needed to enable peer-to-peer over PCIe
between habana device and an RDMA adapter (e.g. mlnx5 or efa
rdma adapter).
- Add debugfs node to dynamically configure CS timeout. Up until now,
it was only configurable through kernel module parameter.
- Fetch more comprehensive power information from the firmware.
- Always take timestamp when waiting for user interrupt, as the user
needs that information to optimize the graph runtime compilation.
- Modify user interrupt to look on 64-bit user value as fence, instead
of 32-bit.
- Bypass reset in case of repeated h/w error event after device reset.
This is to prevent endless loop of resets to the device.
- Fix several bugs in multi CS completion code.
- Fix race condition in fd close/open.
- Update to latest firmware headers
- Add select CRC32 in kconfig
- Small fixes, cosmetics
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Merge tag 'misc-habanalabs-next-2021-10-18' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next
Oded writes:
This tag contains habanalabs driver changes for v5.16:
- Add a new uAPI (under the memory ioctl) to request from the driver
to export a DMA-BUF object that represents a memory region on
the device's DRAM. This is needed to enable peer-to-peer over PCIe
between habana device and an RDMA adapter (e.g. mlnx5 or efa
rdma adapter).
- Add debugfs node to dynamically configure CS timeout. Up until now,
it was only configurable through kernel module parameter.
- Fetch more comprehensive power information from the firmware.
- Always take timestamp when waiting for user interrupt, as the user
needs that information to optimize the graph runtime compilation.
- Modify user interrupt to look on 64-bit user value as fence, instead
of 32-bit.
- Bypass reset in case of repeated h/w error event after device reset.
This is to prevent endless loop of resets to the device.
- Fix several bugs in multi CS completion code.
- Fix race condition in fd close/open.
- Update to latest firmware headers
- Add select CRC32 in kconfig
- Small fixes, cosmetics
* tag 'misc-habanalabs-next-2021-10-18' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (25 commits)
habanalabs: refactor fence handling in hl_cs_poll_fences
habanalabs: context cleanup cosmetics
habanalabs: simplify wait for interrupt with timestamp flow
habanalabs: initialize hpriv fields before adding new node
habanalabs: Unify frequency set/get functionality
habanalabs: select CRC32
habanalabs: add support for dma-buf exporter
habanalabs: define uAPI to export FD for DMA-BUF
habanalabs: fix NULL pointer dereference
habanalabs: fix race condition in multi CS completion
habanalabs: use only u32
habanalabs: update firmware files
habanalabs: bypass reset for continuous h/w error event
habanalabs: take timestamp on wait for interrupt
habanalabs: prevent race between fd close/open
habanalabs: refactor reset log message
habanalabs: define soft-reset as inference op
habanalabs: fix debugfs device memory MMU VA translation
habanalabs: add support for a long interrupt target value
habanalabs: remove redundant cs validity checks
...
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