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| author | Nipun Gupta <nipun.gupta@amd.com> | 2024-04-23 16:40:20 +0530 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2024-04-23 14:27:52 -0600 |
| commit | 06fe8fd6808562971637c6b133c806bcf49097ad (patch) | |
| tree | 3250a674f9e7ec5ea53889c4e143ab8db385aff5 /kernel | |
| parent | 82b951e6fbd31d85ae7f4feb5f00ddd4c5d256e2 (diff) | |
| download | linux-stable-06fe8fd6808562971637c6b133c806bcf49097ad.tar.gz linux-stable-06fe8fd6808562971637c6b133c806bcf49097ad.tar.bz2 linux-stable-06fe8fd6808562971637c6b133c806bcf49097ad.zip | |
genirq/msi: Add MSI allocation helper and export MSI functions
MSI functions for allocation and free can be directly used by
the device drivers without any wrapper provided by bus drivers.
So export these MSI functions.
Also, add a wrapper API to allocate MSIs providing only the
number of interrupts rather than range for simpler driver usage.
Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240423111021.1686144-1-nipun.gupta@amd.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/msi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index f90952ebc494..2024f89baea4 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -1434,6 +1434,7 @@ int msi_domain_alloc_irqs_range(struct device *dev, unsigned int domid, msi_unlock_descs(dev); return ret; } +EXPORT_SYMBOL_GPL(msi_domain_alloc_irqs_range); /** * msi_domain_alloc_irqs_all_locked - Allocate all interrupts from a MSI interrupt domain @@ -1680,6 +1681,7 @@ void msi_domain_free_irqs_range(struct device *dev, unsigned int domid, msi_domain_free_irqs_range_locked(dev, domid, first, last); msi_unlock_descs(dev); } +EXPORT_SYMBOL_GPL(msi_domain_free_irqs_all); /** * msi_domain_free_irqs_all_locked - Free all interrupts from a MSI interrupt domain |