cxl/pci: Refactor component register discovery for reuse

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The endpoint implements component register setup code. Refactor it for
reuse with RCRB, downstream port, and upstream port setup.

Move PCI specifics from cxl_setup_regs() into cxl_pci_setup_regs().

Move cxl_setup_regs() into cxl/core/regs.c and export it. This also
includes supporting static functions cxl_map_registerblock(),
cxl_unmap_register_block() and cxl_probe_regs().

Co-developed-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20230622205523.85375-8-terry.bowman@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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This commit is contained in:

Terry Bowman 2023-06-22 15:55:03 -05:00 • committed by Dan Williams

parent 573408049b

commit d076bb8c4c

3 changed files with 83 additions and 74 deletions

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77

drivers/cxl/core/regs.c

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1

drivers/cxl/cxl.h

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79

drivers/cxl/pci.c

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