search for: msi_cap

PCI devices save the msi and msix capability offset in pci_dev->msi_cap and pci_dev->msix_cap. When we access PCI device MSI and MSIX registers, we can use msi_cap and msix_cap in pci_dev directly. Remove the pos member in msi_attrib. Signed-off-by: Yijing Wang <wangyijing at huawei.com> --- arch/mips/pci/msi-octeon.c | 4 ++-- drivers/pci/host/pc...

...i_irqs(struct pci_dev *dev) > +void __weak arch_restore_msi_irqs(struct msi_irqs *msi) > { > - return default_restore_msi_irqs(dev); > -} > - > -static void msi_set_enable(struct pci_dev *dev, int enable) > -{ > - u16 control; > - > - pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control); > - control &= ~PCI_MSI_FLAGS_ENABLE; > - if (enable) > - control |= PCI_MSI_FLAGS_ENABLE; > - pci_write_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, control); > + return default_restore_msi_irqs(msi); > } > > static void msix_cle...

...i_irqs(struct pci_dev *dev) > +void __weak arch_restore_msi_irqs(struct msi_irqs *msi) > { > - return default_restore_msi_irqs(dev); > -} > - > -static void msi_set_enable(struct pci_dev *dev, int enable) > -{ > - u16 control; > - > - pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control); > - control &= ~PCI_MSI_FLAGS_ENABLE; > - if (enable) > - control |= PCI_MSI_FLAGS_ENABLE; > - pci_write_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, control); > + return default_restore_msi_irqs(msi); > } > > static void msix_cle...

...;entry->msg); } -void __weak arch_restore_msi_irqs(struct pci_dev *dev) +void __weak arch_restore_msi_irqs(struct msi_irqs *msi) { - return default_restore_msi_irqs(dev); -} - -static void msi_set_enable(struct pci_dev *dev, int enable) -{ - u16 control; - - pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control); - control &= ~PCI_MSI_FLAGS_ENABLE; - if (enable) - control |= PCI_MSI_FLAGS_ENABLE; - pci_write_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, control); + return default_restore_msi_irqs(msi); } static void msix_clear_and_set_ctrl(struct pci_dev *dev, u1...

...write_msi_msg(irq, &entry->msg); + if (dev->msix_enabled) { + msix_mask_irq(entry, entry->masked); + readl(entry->mask_base); + } else { + pos = entry->msi_attrib.pos; + pci_read_config_word(dev, pos + PCI_MSI_FLAGS, + &control); + msi_mask_irq(entry, msi_capable_mask(control), + entry->masked); + } + } } #endif @@ -406,7 +419,6 @@ static void __pci_restore_msi_state(struct pci_dev *dev) arch_restore_msi_irqs(dev, dev->irq); pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control); - msi_mask_irq(entry, msi_capab...

...uct msi_irqs *msi, int enable); }; struct msi_ops provides several hook functions, generic MSI driver will call the hook functions to access device specific registers. PCI devices will share the same msi_ops, because they have the same way to access MSI hardware registers. Generic MSI layer export msi_capability_init() and msix_capability_init() functions to drivers. msi/x_capability_init() will initialize MSI capability data struct msi_desc and alloc the irq, then write the msi address/data value to hardware registers. This series only did compile test, we will test it in x86 and arm platform late...

...uct msi_irqs *msi, int enable); }; struct msi_ops provides several hook functions, generic MSI driver will call the hook functions to access device specific registers. PCI devices will share the same msi_ops, because they have the same way to access MSI hardware registers. Generic MSI layer export msi_capability_init() and msix_capability_init() functions to drivers. msi/x_capability_init() will initialize MSI capability data struct msi_desc and alloc the irq, then write the msi address/data value to hardware registers. This series only did compile test, we will test it in x86 and arm platform late...

...sk_base = base; > + > + list_add_tail(&entry->list, &msi->msi_list); > + } > + > + if (msi->ops && msi->ops->msix_setup_entries) > + return msi->ops->msix_setup_entries(msi, entries); > + > + return 0; > +} > + > +/** > + * msi_capability_init - configure device's MSI capability structure > + * @msi: pointer to the msi_irqs data structure of MSI device function > + * @nvec: number of interrupts to allocate > + * > + * Setup the MSI capability structure of the device with the requested > + * number of interr...

...sk_base = base; > + > + list_add_tail(&entry->list, &msi->msi_list); > + } > + > + if (msi->ops && msi->ops->msix_setup_entries) > + return msi->ops->msix_setup_entries(msi, entries); > + > + return 0; > +} > + > +/** > + * msi_capability_init - configure device's MSI capability structure > + * @msi: pointer to the msi_irqs data structure of MSI device function > + * @nvec: number of interrupts to allocate > + * > + * Setup the MSI capability structure of the device with the requested > + * number of interr...

...gt;msi_attrib.entry_nr = entries[i].entry; + entry->mask_base = base; + + list_add_tail(&entry->list, &msi->msi_list); + } + + if (msi->ops && msi->ops->msix_setup_entries) + return msi->ops->msix_setup_entries(msi, entries); + + return 0; +} + +/** + * msi_capability_init - configure device's MSI capability structure + * @msi: pointer to the msi_irqs data structure of MSI device function + * @nvec: number of interrupts to allocate + * + * Setup the MSI capability structure of the device with the requested + * number of interrupts. A return value of...