cxl/pci: Disable root port interrupts in RCH mode

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The RCH root port contains root command AER registers that should not be
enabled.[1] Disable these to prevent root port interrupts.

[1] CXL 3.0 - 12.2.1.1 RCH Downstream Port-detected Errors

Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20231018171713.1883517-17-rrichter@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Terry Bowman 2023-10-18 19:17:09 +02:00 • committed by Dan Williams

parent 6ac07883db

commit d1a9def33d

1 changed files with 32 additions and 0 deletions

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drivers/cxl/core/pci.c

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