linux/drivers/cxl
Ira Weiny 9a016527dc cxl/pci: Reserve individual register block regions
Some hardware implementations mix component and device registers into
the same BAR and the driver stack is going to need independent mapping
implementations for those 2 cases.  Furthermore, it will be nice to have
finer grained mappings should user space want to map some register
blocks.

Now that individual register blocks are mapped; those blocks regions
should be reserved individually to fully separate the register blocks.

Release the 'global' memory reservation and create individual register
block region reservations through devm.

NOTE: pci_release_mem_regions() is still compatible with
pcim_enable_device() because it removes the automatic region release
when called.  So preserve the pcim_enable_device() so that the pcim
interface can be called if needed.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20210604005316.4187340-1-ira.weiny@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2021-06-05 17:38:45 -07:00
..
core.c cxl/pci: Reserve individual register block regions 2021-06-05 17:38:45 -07:00
cxl.h cxl/pci: Map registers based on capabilities 2021-06-05 17:37:16 -07:00
Kconfig cxl: Rename mem to pci 2021-05-26 11:19:05 -07:00
Makefile cxl: Rename mem to pci 2021-05-26 11:19:05 -07:00
mem.h cxl/mem: Get rid of @cxlm.base 2021-05-26 11:20:18 -07:00
pci.c cxl/pci: Reserve individual register block regions 2021-06-05 17:38:45 -07:00
pci.h