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| author | Andrzej Kacprowski <Andrzej.Kacprowski@intel.com> | 2023-12-04 13:23:31 +0100 |
|---|---|---|
| committer | Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2023-12-11 10:38:52 +0100 |
| commit | 35c49cfc8b702eda7a0d3f05497b16f81b69e289 (patch) | |
| tree | b3a5361539fd82c36721c7dbfafea61dbe5401a6 /drivers/gpu | |
| parent | 6e455f5dcdd15fa28edf0ffb5b44d3508512dccf (diff) | |
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: 7f34e01f77f8 ("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
Diffstat (limited to 'drivers/gpu')
0 files changed, 0 insertions, 0 deletions