bade562216
Add assembler file for PCI hypervisor calls. Setup basic skeleton of SUN4V PCI controller driver. Add 32-bit devhandle to PBM struct, as this is needed for hypervisor calls. Signed-off-by: David S. Miller <davem@davemloft.net>
57 lines
989 B
ArmAsm
57 lines
989 B
ArmAsm
/* pci_sun4v_asm: Hypervisor calls for PCI support.
|
|
*
|
|
* Copyright (C) 2006 David S. Miller <davem@davemloft.net>
|
|
*/
|
|
|
|
#include <asm/hypervisor.h>
|
|
|
|
/* %o0: devhandle
|
|
* %o1: devino
|
|
*
|
|
* returns %o0: sysino
|
|
*/
|
|
.globl pci_sun4v_devino_to_sysino
|
|
pci_sun4v_devino_to_sysino:
|
|
mov %o1, %o2
|
|
mov %o0, %o1
|
|
mov HV_FAST_INTR_DEVINO2SYSINO, %o0
|
|
ta HV_FAST_TRAP
|
|
retl
|
|
mov %o1, %o0
|
|
|
|
/* %o0: devhandle
|
|
* %o1: tsbid
|
|
* %o2: num ttes
|
|
* %o3: io_attributes
|
|
* %o4: io_page_list phys address
|
|
*
|
|
* returns %o0: num ttes mapped
|
|
*/
|
|
.globl pci_sun4v_iommu_map
|
|
pci_sun4v_iommu_map:
|
|
mov %o4, %o5
|
|
mov %o3, %o4
|
|
mov %o2, %o3
|
|
mov %o1, %o2
|
|
mov %o0, %o1
|
|
mov HV_FAST_PCI_IOMMU_MAP, %o0
|
|
ta HV_FAST_TRAP
|
|
retl
|
|
mov %o1, %o0
|
|
|
|
/* %o0: devhandle
|
|
* %o1: tsbid
|
|
* %o2: num ttes
|
|
*
|
|
* returns %o0: num ttes demapped
|
|
*/
|
|
.globl pci_sun4v_iommu_demap
|
|
pci_sun4v_iommu_demap:
|
|
mov %o2, %o3
|
|
mov %o1, %o2
|
|
mov %o0, %o1
|
|
mov HV_FAST_PCI_IOMMU_DEMAP, %o0
|
|
ta HV_FAST_TRAP
|
|
retl
|
|
mov %o1, %o0
|