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a80713fea3
The allocation code is overly complex. It tries to have the MSI index space packed, which is not working when an interrupt is freed. There is no requirement for this. The only requirement is that the MSI index is unique. Move the MSI descriptor allocation into msi_domain_populate_irqs() and use the Linux interrupt number as MSI index which fulfils the unique requirement. This requires to lock the MSI descriptors which makes the lock order reverse to the regular MSI alloc/free functions vs. the domain mutex. Assign a seperate lockdep class for these MSI device domains. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Nishanth Menon <nm@ti.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20211206210748.956731741@linutronix.de |
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| .. | ||
| affinity.c | ||
| autoprobe.c | ||
| chip.c | ||
| cpuhotplug.c | ||
| debug.h | ||
| debugfs.c | ||
| devres.c | ||
| dummychip.c | ||
| generic-chip.c | ||
| handle.c | ||
| internals.h | ||
| ipi.c | ||
| irq_sim.c | ||
| irqdesc.c | ||
| irqdomain.c | ||
| Kconfig | ||
| Makefile | ||
| manage.c | ||
| matrix.c | ||
| migration.c | ||
| msi.c | ||
| pm.c | ||
| proc.c | ||
| resend.c | ||
| settings.h | ||
| spurious.c | ||
| timings.c | ||