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| author |   Frank Li <Frank.Li@nxp.com> | 2025-04-14 14:30:56 -0400 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2025-05-07 17:49:00 +0200 |
| commit | b8c7bfb7a0f01521297d688ca5fe1482c81e8910 (patch) | |
| tree | 535226a14067d7cc303b940590802313b034aa00 /scripts/lib/kdoc/kdoc_files.py | |
| parent | platform-msi: Add msi_remove_device_irq_domain() in platform_device_msi_free_irqs_all() (diff) | |
| download | linux-rng-b8c7bfb7a0f01521297d688ca5fe1482c81e8910.tar.xz linux-rng-b8c7bfb7a0f01521297d688ca5fe1482c81e8910.zip | |
irqdomain: Add IRQ_DOMAIN_FLAG_MSI_IMMUTABLE and irq_domain_is_msi_immutable()
Add the flag IRQ_DOMAIN_FLAG_MSI_IMMUTABLE and the API function
irq_domain_is_msi_immutable() to check if the MSI controller retains an
immutable address/data pair during irq_set_affinity().
Ensure compatibility with MSI users like PCIe Endpoint Doorbell, which
require the address/data pair to remain unchanged after setup. Use this
function to verify if the MSI controller is immutable.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250414-ep-msi-v18-2-f69b49917464@nxp.com
Diffstat (limited to 'scripts/lib/kdoc/kdoc_files.py')
0 files changed, 0 insertions, 0 deletions