genirq/msi: Rearrange MSI domain flags

Browse source

These flags got added as necessary and have no obvious structure. For
feature support checks and masking it's convenient to have two blocks of
flags:

   1) Flags to control the internal behaviour like allocating/freeing
      MSI descriptors. Those flags do not need any support from the
      underlying MSI parent domain. They are mostly under the control
      of the outermost domain which implements the actual MSI support.

   2) Flags to expose features, e.g. PCI multi-MSI or requirements
      which can depend on a underlying domain.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.322714918@linutronix.de

...

This commit is contained in:

Thomas Gleixner 2022-11-25 00:25:46 +01:00

parent c459f11f32

commit 2d958b02b0

1 changed files with 34 additions and 15 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

49

include/linux/msi.h

View file