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genirq/msi: Consolidate MSI descriptor data

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All non PCI/MSI usage variants have data structures in struct msi_desc with
only one member: xxx_index. PCI/MSI has a entry_nr member.

Add a common msi_index member to struct msi_desc so all implementations can
share it which allows further consolidation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20211210221814.350967317@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-12-10 23:19:12 +01:00
parent fc22e7dbcd
commit 20c6d424cf
1 changed files with 2 additions and 0 deletions

2
include/linux/msi.h
View File

@ -143,6 +143,7 @@ struct ti_sci_inta_msi_desc {
* address or data changes
* @write_msi_msg_data: Data parameter for the callback.
*
* @msi_index: Index of the msi descriptor
* @pci: [PCI] PCI speficic msi descriptor data
* @platform: [platform] Platform device specific msi descriptor data
* @fsl_mc: [fsl-mc] FSL MC device specific msi descriptor data
@ -163,6 +164,7 @@ struct msi_desc {
void (*write_msi_msg)(struct msi_desc *entry, void *data);
void *write_msi_msg_data;
u16 msi_index;
union {
struct pci_msi_desc pci;
struct platform_msi_desc platform;