diff options
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 43 |
1 files changed, 22 insertions, 21 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index e039b740fe74..59a6d232f77a 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -237,7 +237,7 @@ static void msi_set_mask_bit(struct irq_data *data, u32 flag) } /** - * pci_msi_mask_irq - Generic irq chip callback to mask PCI/MSI interrupts + * pci_msi_mask_irq - Generic IRQ chip callback to mask PCI/MSI interrupts * @data: pointer to irqdata associated to that interrupt */ void pci_msi_mask_irq(struct irq_data *data) @@ -247,7 +247,7 @@ void pci_msi_mask_irq(struct irq_data *data) EXPORT_SYMBOL_GPL(pci_msi_mask_irq); /** - * pci_msi_unmask_irq - Generic irq chip callback to unmask PCI/MSI interrupts + * pci_msi_unmask_irq - Generic IRQ chip callback to unmask PCI/MSI interrupts * @data: pointer to irqdata associated to that interrupt */ void pci_msi_unmask_irq(struct irq_data *data) @@ -588,11 +588,11 @@ static int msi_verify_entries(struct pci_dev *dev) * msi_capability_init - configure device's MSI capability structure * @dev: pointer to the pci_dev data structure of MSI device function * @nvec: number of interrupts to allocate - * @affd: description of automatic irq affinity assignments (may be %NULL) + * @affd: description of automatic IRQ affinity assignments (may be %NULL) * * Setup the MSI capability structure of the device with the requested * number of interrupts. A return value of zero indicates the successful - * setup of an entry with the new MSI irq. A negative return value indicates + * setup of an entry with the new MSI IRQ. A negative return value indicates * an error, and a positive return value indicates the number of interrupts * which could have been allocated. */ @@ -609,7 +609,7 @@ static int msi_capability_init(struct pci_dev *dev, int nvec, if (!entry) return -ENOMEM; - /* All MSIs are unmasked by default, Mask them all */ + /* All MSIs are unmasked by default; mask them all */ mask = msi_mask(entry->msi_attrib.multi_cap); msi_mask_irq(entry, mask, mask); @@ -637,7 +637,7 @@ static int msi_capability_init(struct pci_dev *dev, int nvec, return ret; } - /* Set MSI enabled bits */ + /* Set MSI enabled bits */ pci_intx_for_msi(dev, 0); pci_msi_set_enable(dev, 1); dev->msi_enabled = 1; @@ -729,11 +729,11 @@ static void msix_program_entries(struct pci_dev *dev, * @dev: pointer to the pci_dev data structure of MSI-X device function * @entries: pointer to an array of struct msix_entry entries * @nvec: number of @entries - * @affd: Optional pointer to enable automatic affinity assignement + * @affd: Optional pointer to enable automatic affinity assignment * * Setup the MSI-X capability structure of device function with a - * single MSI-X irq. A return of zero indicates the successful setup of - * requested MSI-X entries with allocated irqs or non-zero for otherwise. + * single MSI-X IRQ. A return of zero indicates the successful setup of + * requested MSI-X entries with allocated IRQs or non-zero for otherwise. **/ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries, int nvec, struct irq_affinity *affd) @@ -789,7 +789,7 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries, out_avail: if (ret < 0) { /* - * If we had some success, report the number of irqs + * If we had some success, report the number of IRQs * we succeeded in setting up. */ struct msi_desc *entry; @@ -812,7 +812,7 @@ out_free: /** * pci_msi_supported - check whether MSI may be enabled on a device * @dev: pointer to the pci_dev data structure of MSI device function - * @nvec: how many MSIs have been requested ? + * @nvec: how many MSIs have been requested? * * Look at global flags, the device itself, and its parent buses * to determine if MSI/-X are supported for the device. If MSI/-X is @@ -896,7 +896,7 @@ static void pci_msi_shutdown(struct pci_dev *dev) /* Keep cached state to be restored */ __pci_msi_desc_mask_irq(desc, mask, ~mask); - /* Restore dev->irq to its default pin-assertion irq */ + /* Restore dev->irq to its default pin-assertion IRQ */ dev->irq = desc->msi_attrib.default_irq; pcibios_alloc_irq(dev); } @@ -958,7 +958,7 @@ static int __pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, } } - /* Check whether driver already requested for MSI irq */ + /* Check whether driver already requested for MSI IRQ */ if (dev->msi_enabled) { pci_info(dev, "can't enable MSI-X (MSI IRQ already assigned)\n"); return -EINVAL; @@ -1026,7 +1026,7 @@ static int __pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec, if (!pci_msi_supported(dev, minvec)) return -EINVAL; - /* Check whether driver already requested MSI-X irqs */ + /* Check whether driver already requested MSI-X IRQs */ if (dev->msix_enabled) { pci_info(dev, "can't enable MSI (MSI-X already enabled)\n"); return -EINVAL; @@ -1113,8 +1113,8 @@ static int __pci_enable_msix_range(struct pci_dev *dev, * pci_enable_msix_range - configure device's MSI-X capability structure * @dev: pointer to the pci_dev data structure of MSI-X device function * @entries: pointer to an array of MSI-X entries - * @minvec: minimum number of MSI-X irqs requested - * @maxvec: maximum number of MSI-X irqs requested + * @minvec: minimum number of MSI-X IRQs requested + * @maxvec: maximum number of MSI-X IRQs requested * * Setup the MSI-X capability structure of device function with a maximum * possible number of interrupts in the range between @minvec and @maxvec @@ -1179,7 +1179,7 @@ int pci_alloc_irq_vectors_affinity(struct pci_dev *dev, unsigned int min_vecs, return msi_vecs; } - /* use legacy irq if allowed */ + /* use legacy IRQ if allowed */ if (flags & PCI_IRQ_LEGACY) { if (min_vecs == 1 && dev->irq) { /* @@ -1248,7 +1248,7 @@ int pci_irq_vector(struct pci_dev *dev, unsigned int nr) EXPORT_SYMBOL(pci_irq_vector); /** - * pci_irq_get_affinity - return the affinity of a particular msi vector + * pci_irq_get_affinity - return the affinity of a particular MSI vector * @dev: PCI device to operate on * @nr: device-relative interrupt vector index (0-based). */ @@ -1280,7 +1280,7 @@ const struct cpumask *pci_irq_get_affinity(struct pci_dev *dev, int nr) EXPORT_SYMBOL(pci_irq_get_affinity); /** - * pci_irq_get_node - return the numa node of a particular msi vector + * pci_irq_get_node - return the NUMA node of a particular MSI vector * @pdev: PCI device to operate on * @vec: device-relative interrupt vector index (0-based). */ @@ -1330,7 +1330,7 @@ void pci_msi_domain_write_msg(struct irq_data *irq_data, struct msi_msg *msg) /** * pci_msi_domain_calc_hwirq - Generate a unique ID for an MSI source * @dev: Pointer to the PCI device - * @desc: Pointer to the msi descriptor + * @desc: Pointer to the MSI descriptor * * The ID number is only used within the irqdomain. */ @@ -1348,7 +1348,8 @@ static inline bool pci_msi_desc_is_multi_msi(struct msi_desc *desc) } /** - * pci_msi_domain_check_cap - Verify that @domain supports the capabilities for @dev + * pci_msi_domain_check_cap - Verify that @domain supports the capabilities + * for @dev * @domain: The interrupt domain to check * @info: The domain info for verification * @dev: The device to check |