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| author | Tushar Dave <tushar.n.dave@oracle.com> | 2016-10-28 10:12:43 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-18 11:16:59 -0800 |
| commit | 5116ab4eabed575b7cca61a6e89b7d6fb7440970 (patch) | |
| tree | caa1c853c629845f71228a52899013b7c474497f /arch/sparc/kernel/pci_sun4v_asm.S | |
| parent | 31f077dc7dffd4a444932a9fe7fe84d9c7b90b73 (diff) | |
| download | lwn-5116ab4eabed575b7cca61a6e89b7d6fb7440970.tar.gz lwn-5116ab4eabed575b7cca61a6e89b7d6fb7440970.zip | |
sparc64: Bind PCIe devices to use IOMMU v2 service
In order to use Hypervisor (HV) IOMMU v2 API for map/demap, each PCIe
device has to be bound to IOTSB using HV API pci_iotsb_bind().
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Reviewed-by: chris hyser <chris.hyser@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/pci_sun4v_asm.S')
| -rw-r--r-- | arch/sparc/kernel/pci_sun4v_asm.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/sparc/kernel/pci_sun4v_asm.S b/arch/sparc/kernel/pci_sun4v_asm.S index fd94d0e4a41d..22024a96c317 100644 --- a/arch/sparc/kernel/pci_sun4v_asm.S +++ b/arch/sparc/kernel/pci_sun4v_asm.S @@ -378,3 +378,17 @@ ENTRY(pci_sun4v_iotsb_conf) retl stx %o1, [%g1] ENDPROC(pci_sun4v_iotsb_conf) + + /* + * %o0: devhandle + * %o1: iotsb_num/iotsb_handle + * %o2: pci_device + * + * returns %o0: status + */ +ENTRY(pci_sun4v_iotsb_bind) + mov HV_FAST_PCI_IOTSB_BIND, %o5 + ta HV_FAST_TRAP + retl + nop +ENDPROC(pci_sun4v_iotsb_bind) |