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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-13 20:05:29 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-13 20:05:29 +0300 |
commit | feb7a43de5ef625ad74097d8fd3481d5dbc06a59 (patch) | |
tree | 1aae202b28ca3a87dd00ede93783ea3c0647d4f6 /arch/mips/pci | |
parent | fd04899208d2057b2de808e8447cfd806fd0a607 (diff) | |
parent | 74a5257a0c175810d620b5e631c4e7554955ac25 (diff) | |
download | linux-feb7a43de5ef625ad74097d8fd3481d5dbc06a59.tar.xz |
Merge tag 'irq-msi-2022-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull MSI irq updates from Thomas Gleixner:
"Rework of the MSI interrupt infrastructure.
This is a treewide cleanup and consolidation of MSI interrupt handling
in preparation for further changes in this area which are necessary
to:
- address existing shortcomings in the VFIO area
- support the upcoming Interrupt Message Store functionality which
decouples the message store from the PCI config/MMIO space"
* tag 'irq-msi-2022-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (94 commits)
genirq/msi: Populate sysfs entry only once
PCI/MSI: Unbreak pci_irq_get_affinity()
genirq/msi: Convert storage to xarray
genirq/msi: Simplify sysfs handling
genirq/msi: Add abuse prevention comment to msi header
genirq/msi: Mop up old interfaces
genirq/msi: Convert to new functions
genirq/msi: Make interrupt allocation less convoluted
platform-msi: Simplify platform device MSI code
platform-msi: Let core code handle MSI descriptors
bus: fsl-mc-msi: Simplify MSI descriptor handling
soc: ti: ti_sci_inta_msi: Remove ti_sci_inta_msi_domain_free_irqs()
soc: ti: ti_sci_inta_msi: Rework MSI descriptor allocation
NTB/msi: Convert to msi_on_each_desc()
PCI: hv: Rework MSI handling
powerpc/mpic_u3msi: Use msi_for_each-desc()
powerpc/fsl_msi: Use msi_for_each_desc()
powerpc/pasemi/msi: Convert to msi_on_each_dec()
powerpc/cell/axon_msi: Convert to msi_on_each_desc()
powerpc/4xx/hsta: Rework MSI handling
...
Diffstat (limited to 'arch/mips/pci')
-rw-r--r-- | arch/mips/pci/msi-octeon.c | 32 |
1 files changed, 3 insertions, 29 deletions
diff --git a/arch/mips/pci/msi-octeon.c b/arch/mips/pci/msi-octeon.c index 288b58b00dc8..c2860ebbd863 100644 --- a/arch/mips/pci/msi-octeon.c +++ b/arch/mips/pci/msi-octeon.c @@ -68,6 +68,9 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) u64 search_mask; int index; + if (desc->pci.msi_attrib.is_msix) + return -EINVAL; + /* * Read the MSI config to figure out how many IRQs this device * wants. Most devices only want 1, which will give @@ -182,35 +185,6 @@ msi_irq_allocated: return 0; } -int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) -{ - struct msi_desc *entry; - int ret; - - /* - * MSI-X is not supported. - */ - if (type == PCI_CAP_ID_MSIX) - return -EINVAL; - - /* - * If an architecture wants to support multiple MSI, it needs to - * override arch_setup_msi_irqs() - */ - if (type == PCI_CAP_ID_MSI && nvec > 1) - return 1; - - for_each_pci_msi_entry(entry, dev) { - ret = arch_setup_msi_irq(dev, entry); - if (ret < 0) - return ret; - if (ret > 0) - return -ENOSPC; - } - - return 0; -} - /** * Called when a device no longer needs its MSI interrupts. All * MSI interrupts for the device are freed. |