kernel.git/drivers/pci/msi.c, branch linux-3.17.y

PCI/MSI: Add device flag indicating that 64-bit MSIs don't work

2014-12-06T23:57:18Z

commit f144d1496b47e7450f41b767d0d91c724c2198bc upstream. This can be set by quirks/drivers to be used by the architecture code that assigns the MSI addresses. We additionally add verification in the core MSI code that the values assigned by the architecture do satisfy the limitation in order to fail gracefully if they don't (ie. the arch hasn't been updated to deal with that quirk yet). Signed-off-by: Benjamin Herrenschmidt Acked-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman

PCI/MSI: Use irq_get_msi_desc() to simplify code

2014-07-16T20:49:02Z

Use irq_get_msi_desc() to get MSI IRQ related msi_desc directly instead of searching the dev->msi_list. Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

PCI/MSI: Remove unused list access in __pci_restore_msix_state()

2014-07-16T20:45:38Z

In __pci_restore_msix_state(), we get the first element from msi_list, but we never use it. Remove this useless code. Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

PCI/MSI: Retrieve first MSI IRQ from msi_desc rather than pci_dev

2014-07-16T20:44:49Z

Retrieve the first MSI IRQ to compute the MSI index from struct msi_desc rather than the struct pci_dev to avoid an additional memory access. Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

PCI/MSI: Remove unused function msi_remove_pci_irq_vectors()

2014-07-16T20:44:20Z

msi_remove_pci_irq_vectors() is unused, so remove it. Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

PCI/MSI: Add msi_setup_entry() to clean up MSI initialization

2014-07-16T20:42:07Z

Move MSI entry stuff to a new function, msi_setup_entry(), to simplify msi_capability_init() as MSI-X does. Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

PCI/MSI: Cache Multiple Message Capable in struct msi_desc

2014-07-03T22:55:07Z

The Multiple Message Capable field in the MSI Message Control register indicates how many vectors the device supports. This field is read-only, so cache it in msi_desc to avoid reading it repeatedly. Since we cache the extracted field (not the entire Message Control register), we can use msi_mask() instead of msi_capable_mask(), which is then unused, so remove it. [bhelgaas: fix whitespace, changelog] Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

PCI/MSI: Remove unused msi_enabled_mask()

2014-07-03T22:54:10Z

No one uses msi_enabled_mask(); remove the dead code. No functional change. Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

PCI/MSI: Add internal msix_clear_and_set_ctrl() function

2014-07-03T22:48:59Z

Add msix_clear_and_set_ctrl() simplify code. No functional change. [bhelgaas: fix whitespace] Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas

Merge branches 'pci/msi', 'pci/iommu' and 'pci/cleanup' into next

2014-06-11T20:38:25Z

* pci/msi: PCI/MSI: Fix memory leak in free_msi_irqs() * pci/iommu: PCI: Add function 1 DMA alias quirk for HighPoint RocketRaid 642L PCI: Add bridge DMA alias quirk for ITE bridge * pci/cleanup: PCI: Merge multi-line quoted strings PCI: Whitespace cleanup PCI: Move EXPORT_SYMBOL so it immediately follows function/variable