linux-stable/drivers/accel
Andrzej Kacprowski 35c49cfc8b accel/ivpu/37xx: Fix interrupt_clear_with_0 WA initialization
Using PCI Device ID/Revision to initialize the interrupt_clear_with_0
workaround is problematic - there are many pre-production
steppings with different behavior, even with the same PCI ID/Revision

Instead of checking for PCI Device ID/Revision, check the VPU
buttress interrupt status register behavior - if this register
is not zero after writing 1s it means there register is RW
instead of RW1C and we need to enable the interrupt_clear_with_0
workaround.

Fixes: 7f34e01f77 ("accel/ivpu: Clear specific interrupt status bits on C0")
Signed-off-by: Andrzej Kacprowski <Andrzej.Kacprowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://lore.kernel.org/all/20231204122331.40560-1-jacek.lawrynowicz@linux.intel.com
2023-12-11 10:38:52 +01:00
..
habanalabs accel/habanalabs/gaudi2: fix spmu mask creation 2023-10-09 12:37:24 +03:00
ivpu accel/ivpu/37xx: Fix interrupt_clear_with_0 WA initialization 2023-12-11 10:38:52 +01:00
qaic Merge tag 'drm-misc-next-2023-09-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2023-09-29 08:27:15 +10:00
drm_accel.c accel: make accel_class a static const structure 2023-10-09 12:37:19 +03:00
Kconfig accel/qaic: Add qaic driver to the build system 2023-04-06 08:23:03 +02:00
Makefile accel/qaic: Add qaic driver to the build system 2023-04-06 08:23:03 +02:00