diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2025-02-17 14:26:48 +0530 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-02-20 15:19:26 +0100 |
| commit | 1c000dcaad2bef20189f3868207f515ef4b637ee (patch) | |
| tree | 14f06a8e60f0cc2adbae7402fb8b2373073c6b05 /include/linux/msi.h | |
| parent | 999f458c1771354371ba367dd84f55f9a62a4233 (diff) | |
irqchip/irq-msi-lib: Optionally set default irq_eoi()/irq_ack()
msi_lib_init_dev_msi_info() sets the default irq_eoi()/irq_ack() callbacks
unconditionally. This is correct for all existing users, but prevents the
IMSIC driver to be moved to the MSI library implementation.
Introduce chip_flags in struct msi_parent_ops, which instruct the library
to selectively set the callbacks depending on the flags, and update all
current users to set them.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250217085657.789309-3-apatel@ventanamicro.com
Diffstat (limited to 'include/linux/msi.h')
| -rw-r--r-- | include/linux/msi.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index b10093c4d00e..9abef442c146 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -558,11 +558,21 @@ enum { MSI_FLAG_NO_AFFINITY = (1 << 21), }; +/* + * Flags for msi_parent_ops::chip_flags + */ +enum { + MSI_CHIP_FLAG_SET_EOI = (1 << 0), + MSI_CHIP_FLAG_SET_ACK = (1 << 1), +}; + /** * struct msi_parent_ops - MSI parent domain callbacks and configuration info * * @supported_flags: Required: The supported MSI flags of the parent domain * @required_flags: Optional: The required MSI flags of the parent MSI domain + * @chip_flags: Optional: Select MSI chip callbacks to update with defaults + * in msi_lib_init_dev_msi_info(). * @bus_select_token: Optional: The bus token of the real parent domain for * irq_domain::select() * @bus_select_mask: Optional: A mask of supported BUS_DOMAINs for @@ -575,6 +585,7 @@ enum { struct msi_parent_ops { u32 supported_flags; u32 required_flags; + u32 chip_flags; u32 bus_select_token; u32 bus_select_mask; const char *prefix; |