Hello Greg,
This is the second pull request for habanalabs driver for kernel 5.8.
It contains important improvements to our MMU code and our ASIC reset code.
Please see the tag message for more details on what this pull request
contains.
Thanks,
Oded
The following changes since commit 709b41b56a16a5901a89dcaeb75d2233f80d9e55:
misc: rtsx: Remove unnecessary rts5249_set_aspm(), rts5260_set_aspm()
(2020-05-22 09:38:14 +0200)
are available in the Git repository at:
git://people.freedesktop.org/~gabbayo/linux
tags/misc-habanalabs-next-2020-05-25
for you to fetch changes up to 8ff5f4fd40df9525675ea0e512da4cec65d646eb:
habanalabs: handle MMU cache invalidation timeout (2020-05-25 08:17:57 +0300)
----------------------------------------------------------------
This tag contains the following changes for kernel 5.8:
- Improve MMU cache invalidation code and handle case where the
invalidation doesn't finish in a reasonable time.
- Remove the option to perform soft-reset to GAUDI. Soft-reset is where the
driver only resets the compute and DMA engines of the ASIC. This is not
relevant to GAUDI as we must also reset the NIC ports. And when we reset
the NIC ports, we must also reset other stuff so we prefer to just do
hard-reset (where we reset the entire ASIC except for PCIe).
- Fail the hard-reset procedure in case we still have user processes which
have active file-descriptors on a device. Doing hard-reset in that case
can result in a kernel panic because of gen_pool checks
- Don't initialize the default wait callback of dma_buf with the default
wait function as that's the default...
----------------------------------------------------------------
Daniel Vetter (1):
habanalabs: don't set default fence_ops->wait
Oded Gabbay (1):
habanalabs: GAUDI does not support soft-reset
Omer Shpigelman (4):
habanalabs: improve MMU cache invalidation code
habanalabs: add print for soft reset due to event
habanalabs: don't allow hard reset with open processes
habanalabs: handle MMU cache invalidation timeout
drivers/misc/habanalabs/command_submission.c | 1 -
drivers/misc/habanalabs/device.c | 23 ++++++---
drivers/misc/habanalabs/gaudi/gaudi.c | 74 ++++++++++++++++++----------
drivers/misc/habanalabs/goya/goya.c | 35 ++++++++-----
drivers/misc/habanalabs/habanalabs.h | 10 ++--
drivers/misc/habanalabs/memory.c | 35 ++++++++++---
drivers/misc/habanalabs/sysfs.c | 5 ++
7 files changed, 126 insertions(+), 57 deletions(-)
