Commit Graph

7 Commits

Author SHA1 Message Date
Ofir Bitton
91bd822448 habanalabs/gaudi2: implement fp32 not supported event
Due to binning, Gaudi2 does not always support fp32.
We add support for such an event in case fp32 is used by the user
in such a device.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:46 +02:00
Ofir Bitton
bb677d527e habanalabs/gaudi2: allow user to flush PCIE by read
In order for the user to flush PCIE he needs to read some register
from PCIE block. The chosen register is SPECIAL_GLBL_SPARE_0 and
hence needs to be unsecured.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-09-19 15:10:01 +03:00
Tal Cohen
194e515c79 habanalabs/gaudi2: new API to control engine cores running mode
The current flow of halting the engine cores is implemented by command
buffers built by the user space and sent towards the Driver.

This current flow is broken since the user space does not know when
the cores actually halt as sending a workload is async op.

Therefore the application can not free the memory that is mapped
to the engine cores.

This new API allows the user space to control the running mode. The
API call is sync (returns after the cores are set to the
requested mode).

Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-09-18 13:29:51 +03:00
Ofir Bitton
ae937492ec habanalabs/gaudi2: remove old interrupt mappings
Interrupt enumration has changed some time ago but the old mapping
was accidentally left in the driver.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-09-18 13:29:50 +03:00
Tomer Tayar
168fc71857 habanalabs/gaudi2: map virtual MSI-X doorbell memory for user
Upon the initialization of a user context, map the host memory page of
the virtual MSI-X doorbell in the device MMU.
A reserved VA is used for this purpose, so user can use it directly
without any allocation/map operation.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-07-12 09:09:31 +03:00
Tomer Tayar
3f043b3192 habanalabs/gaudi2: modify decoder to use virtual MSI-X doorbell
Modify the decoder wrapper blocks to generate interrupts using the
virtual MSI-X doorbell.

As a decoder wrapper block cannot write directly to HBW upon completion,
it writes instead to SOB which is monitored by a master monitor.
When resolved, this monitor will be the one to actually write to the
virtual MSI-X doorbell.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-07-12 09:09:31 +03:00
Oded Gabbay
01d9ccf865 habanalabs/gaudi2: add asic registers header files
Add the relevant GAUDI2 ASIC registers header files. These files are
generated automatically from a tool maintained by the VLSI engineers.

There are more files which are not upstreamed because only very few
defines from those files are used in the driver. For those files, I
copied the relevant defines into gaudi2_regs.h and gaudi2_masks.h, to
reduce the size of this patch.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-07-12 09:09:27 +03:00