diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2017-09-13 23:29:10 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-25 20:38:24 +0200 |
| commit | 72491643469aab736536ae71dcd199b19dabd891 (patch) | |
| tree | 6755a53312628e34b0bf38c8ce95f33da33fa84b /drivers/iommu | |
| parent | c942cee46bba761ce97ee6d4fc71892e064e8628 (diff) | |
genirq/irqdomain: Update irq_domain_ops.activate() signature
The irq_domain_ops.activate() callback has no return value and no way to
tell the function that the activation is early.
The upcoming changes to support a reservation scheme which allows to assign
interrupt vectors on x86 only when the interrupt is actually requested
requires:
- A return value, so activation can fail at request_irq() time
- Information that the activate invocation is early, i.e. before
request_irq().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Yu Chen <yu.c.chen@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Link: https://lkml.kernel.org/r/20170913213152.848490816@linutronix.de
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 5 | ||||
| -rw-r--r-- | drivers/iommu/intel_irq_remapping.c | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 51f8215877f5..ea03f4138f5f 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4170,8 +4170,8 @@ static void irq_remapping_free(struct irq_domain *domain, unsigned int virq, irq_domain_free_irqs_common(domain, virq, nr_irqs); } -static void irq_remapping_activate(struct irq_domain *domain, - struct irq_data *irq_data) +static int irq_remapping_activate(struct irq_domain *domain, + struct irq_data *irq_data, bool early) { struct amd_ir_data *data = irq_data->chip_data; struct irq_2_irte *irte_info = &data->irq_2_irte; @@ -4180,6 +4180,7 @@ static void irq_remapping_activate(struct irq_domain *domain, if (iommu) iommu->irte_ops->activate(data->entry, irte_info->devid, irte_info->index); + return 0; } static void irq_remapping_deactivate(struct irq_domain *domain, diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index a5b89f6bcdbf..762d84713b7a 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -1389,12 +1389,13 @@ static void intel_irq_remapping_free(struct irq_domain *domain, irq_domain_free_irqs_common(domain, virq, nr_irqs); } -static void intel_irq_remapping_activate(struct irq_domain *domain, - struct irq_data *irq_data) +static int intel_irq_remapping_activate(struct irq_domain *domain, + struct irq_data *irq_data, bool early) { struct intel_ir_data *data = irq_data->chip_data; modify_irte(&data->irq_2_iommu, &data->irte_entry); + return 0; } static void intel_irq_remapping_deactivate(struct irq_domain *domain, |