cxl/core: Drop ->platform_res attribute for root decoders

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Root decoders are responsible for hosting the available host address
space for endpoints and regions to claim. The tracking of that available
capacity can be done in iomem_resource directly. As a result, root
decoders no longer need to host their own resource tree. The
current ->platform_res attribute was added prematurely.

Otherwise, ->hpa_range fills the role of conveying the current decode
range of the decoder.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Adam Manzanares <a.manzanares@samsung.com>
Link: https://lore.kernel.org/r/165603873619.551046.791596854070136223.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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This commit is contained in:

Dan Williams 2022-05-18 18:02:39 -07:00

parent e8b7ea58ab

commit e50fe01e1f

4 changed files with 18 additions and 41 deletions

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17

drivers/cxl/acpi.c

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8

drivers/cxl/core/pci.c

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28

drivers/cxl/core/port.c

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6

drivers/cxl/cxl.h

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