diff options
| author | Rafael J. Wysocki <[email protected]> | 2015-10-09 22:13:30 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2015-10-09 22:13:30 +0200 |
| commit | 670aee3fc7ac37ae947f8b582d87b51d5fa36524 (patch) | |
| tree | 9885998483d4506208e5aef9c13c8a86adea20bb /drivers/acpi/pci_link.c | |
| parent | d61e87ac53292a3138b4354b687558973686b6ca (diff) | |
| parent | 55582bccdc1e89ecc973c260d46e247df675d4df (diff) | |
Merge branches 'pm-devfreq' and 'pm-cpufreq'
* pm-devfreq:
PM / devfreq: fix double kfree
PM / devfreq: Fix governor_store()
* pm-cpufreq:
cpufreq: prevent lockup on reading scaling_available_frequencies
cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
Diffstat (limited to 'drivers/acpi/pci_link.c')
| -rw-r--r-- | drivers/acpi/pci_link.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 3b4ea98e3ea0..7c8408b946ca 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -498,8 +498,7 @@ int __init acpi_irq_penalty_init(void) PIRQ_PENALTY_PCI_POSSIBLE; } } - /* Add a penalty for the SCI */ - acpi_irq_penalty[acpi_gbl_FADT.sci_interrupt] += PIRQ_PENALTY_PCI_USING; + return 0; } @@ -553,6 +552,13 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link) irq = link->irq.possible[i]; } } + if (acpi_irq_penalty[irq] >= PIRQ_PENALTY_ISA_ALWAYS) { + printk(KERN_ERR PREFIX "No IRQ available for %s [%s]. " + "Try pci=noacpi or acpi=off\n", + acpi_device_name(link->device), + acpi_device_bid(link->device)); + return -ENODEV; + } /* Attempt to enable the link device at this IRQ. */ if (acpi_pci_link_set(link, irq)) { @@ -821,6 +827,12 @@ void acpi_penalize_isa_irq(int irq, int active) } } +bool acpi_isa_irq_available(int irq) +{ + return irq >= 0 && (irq >= ARRAY_SIZE(acpi_irq_penalty) || + acpi_irq_penalty[irq] < PIRQ_PENALTY_ISA_ALWAYS); +} + /* * Penalize IRQ used by ACPI SCI. If ACPI SCI pin attributes conflict with * PCI IRQ attributes, mark ACPI SCI as ISA_ALWAYS so it won't be use for |