diff options
author | Ira Weiny <ira.weiny@intel.com> | 2021-06-04 03:53:16 +0300 |
---|---|---|
committer | Dan Williams <dan.j.williams@intel.com> | 2021-06-06 03:38:45 +0300 |
commit | 9a016527dcb71e2ecadfeacf52122a79b428790c (patch) | |
tree | e5ac0fc2ca3323e9a6ae003ec91bbd530e2e3cbd /drivers/cxl/cxl.h | |
parent | 30af97296f48d84bc4a6abbaabb92c796a84ca57 (diff) | |
download | linux-9a016527dcb71e2ecadfeacf52122a79b428790c.tar.xz |
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>
Diffstat (limited to 'drivers/cxl/cxl.h')
0 files changed, 0 insertions, 0 deletions