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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-09 22:05:54 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:12:11 -0800 |
| commit | bade5622167181844cd4e60087971c1f949e149f (patch) | |
| tree | 0bd0144e472786f8ba5b37a2bb90204ff6bf204b /arch/sparc64/kernel/pci_sun4v_asm.S | |
| parent | 8f6a93a196ba6c569c3e8daa6e81cca7e3ba81b1 (diff) | |
| download | lwn-bade5622167181844cd4e60087971c1f949e149f.tar.gz lwn-bade5622167181844cd4e60087971c1f949e149f.zip | |
[SPARC64]: More SUN4V PCI controller work.
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>
Diffstat (limited to 'arch/sparc64/kernel/pci_sun4v_asm.S')
| -rw-r--r-- | arch/sparc64/kernel/pci_sun4v_asm.S | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/pci_sun4v_asm.S b/arch/sparc64/kernel/pci_sun4v_asm.S new file mode 100644 index 000000000000..fd2fe0edf168 --- /dev/null +++ b/arch/sparc64/kernel/pci_sun4v_asm.S @@ -0,0 +1,56 @@ +/* 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 |