linux_dsm_epyc7002/drivers/pci
Niklas Cassel 111111a72e PCI: dwc: Use the DMA-API to get the MSI address
Use the DMA-API to get the MSI address. This address will be written to
our PCI config space and to the register which determines which AXI
address the DWC IP will spoof for incoming MSI irqs.

Since it is a PCIe endpoint device, rather than the CPU, that is supposed
to write to the MSI address, the proper way to get the MSI address is by
using the DMA API, not by using virt_to_phys().

Using virt_to_phys() might work on some systems, but using the DMA API
should work on all systems.

This is essentially the same thing as allocating a buffer in a driver
to which the endpoint will write to. To do this, we use the DMA API.

Tested-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Joao Pinto <jpinto@synopsys.com>
2017-12-21 11:09:10 +00:00
..
dwc PCI: dwc: Use the DMA-API to get the MSI address 2017-12-21 11:09:10 +00:00
endpoint PCI: endpoint: make config_item_type const 2017-10-19 16:15:25 +02:00
host PCI: rcar: Fix use-after-free in probe error path 2017-12-12 11:01:47 -06:00
hotplug pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pcie pci-v4.15-changes 2017-11-15 15:01:28 -08:00
switch Support for the switchtec ntb and related changes. Also, a couple of 2017-11-19 20:41:53 -10:00
access.c PCI: Provide Kconfig option for lockless config space accessors 2017-06-28 22:32:56 +02:00
ats.c PCI: Restore PRI and PASID state after Function-Level Reset 2017-05-30 15:40:50 -05:00
bus.c PCI: Autosense device removal in pci_bridge_d3_update() 2016-11-17 18:44:56 -06:00
ecam.c PCI: ECAM: Map config region with pci_remap_cfgspace() 2017-04-24 13:53:14 -05:00
host-bridge.c cxl: use pcibios_free_controller_deferred() when removing vPHBs 2016-08-22 11:09:33 +10:00
iov.c PCI: Restore ARI Capable Hierarchy before setting numVFs 2017-10-10 19:15:29 -05:00
irq.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-26 14:11:54 -08:00
Makefile Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-26 14:11:54 -08:00
mmap.c PCI: Add I/O BAR support to generic pci_mmap_resource_range() 2017-04-20 08:47:47 -05:00
msi.c PCI/MSI: Set MSI_FLAG_MUST_REACTIVATE in core code 2017-10-18 15:38:31 +02:00
of.c PCI/MSI: Use of_msi_get_domain instead of open-coded "msi-parent" parsing 2015-10-16 13:07:14 +01:00
pci-acpi.c ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle 2017-10-05 15:48:54 -05:00
pci-driver.c PM / sleep: Avoid excess pm_runtime_enable() calls in device_resume() 2017-12-11 14:32:56 +01:00
pci-label.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci-mid.c PCI / PM: Simplify device wakeup settings code 2017-06-28 01:52:45 +02:00
pci-stub.c PCI: Whitespace cleanup 2014-06-10 20:20:19 -06:00
pci-sysfs.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pci.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pci.h pci-v4.15-changes 2017-11-15 15:01:28 -08:00
probe.c PCI: Distribute available buses to hotplug-capable bridges 2017-11-06 18:48:59 -06:00
proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
quirks.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
remove.c PCI: Detach driver before procfs & sysfs teardown on device remove 2017-10-25 08:47:10 -05:00
rom.c PCI: Fail pci_map_rom() if the option ROM is invalid 2017-11-08 14:47:07 -06:00
search.c PCI: Add device flag PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT 2017-04-13 18:49:50 -05:00
setup-bus.c Merge branch 'pci/resource' into next 2017-11-14 12:11:25 -06:00
setup-irq.c PCI: Inline and remove pcibios_update_irq() 2017-08-10 12:49:57 -05:00
setup-res.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
slot.c locking/atomic, kref: Add kref_read() 2017-01-14 11:37:18 +01:00
syscall.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vc.c PCI: Fix unaligned accesses in VC code 2016-06-20 13:24:20 -05:00
vpd.c
xen-pcifront.c xen: make use of xenbus_read_unsigned() in xen-pcifront 2016-11-07 13:55:26 +01:00