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bade5622 DM |
1 | /* pci_sun4v_asm: Hypervisor calls for PCI support. |
2 | * | |
3 | * Copyright (C) 2006 David S. Miller <davem@davemloft.net> | |
4 | */ | |
5 | ||
6 | #include <asm/hypervisor.h> | |
7 | ||
8 | /* %o0: devhandle | |
9 | * %o1: devino | |
10 | * | |
11 | * returns %o0: sysino | |
12 | */ | |
13 | .globl pci_sun4v_devino_to_sysino | |
14 | pci_sun4v_devino_to_sysino: | |
15 | mov %o1, %o2 | |
16 | mov %o0, %o1 | |
17 | mov HV_FAST_INTR_DEVINO2SYSINO, %o0 | |
18 | ta HV_FAST_TRAP | |
19 | retl | |
20 | mov %o1, %o0 | |
21 | ||
22 | /* %o0: devhandle | |
23 | * %o1: tsbid | |
24 | * %o2: num ttes | |
25 | * %o3: io_attributes | |
26 | * %o4: io_page_list phys address | |
27 | * | |
28 | * returns %o0: num ttes mapped | |
29 | */ | |
30 | .globl pci_sun4v_iommu_map | |
31 | pci_sun4v_iommu_map: | |
32 | mov %o4, %o5 | |
33 | mov %o3, %o4 | |
34 | mov %o2, %o3 | |
35 | mov %o1, %o2 | |
36 | mov %o0, %o1 | |
37 | mov HV_FAST_PCI_IOMMU_MAP, %o0 | |
38 | ta HV_FAST_TRAP | |
39 | retl | |
40 | mov %o1, %o0 | |
41 | ||
42 | /* %o0: devhandle | |
43 | * %o1: tsbid | |
44 | * %o2: num ttes | |
45 | * | |
46 | * returns %o0: num ttes demapped | |
47 | */ | |
48 | .globl pci_sun4v_iommu_demap | |
49 | pci_sun4v_iommu_demap: | |
50 | mov %o2, %o3 | |
51 | mov %o1, %o2 | |
52 | mov %o0, %o1 | |
53 | mov HV_FAST_PCI_IOMMU_DEMAP, %o0 | |
54 | ta HV_FAST_TRAP | |
55 | retl | |
56 | mov %o1, %o0 | |
7eae642f DM |
57 | |
58 | /* %o0: devhandle | |
59 | * %o1: pci_device | |
60 | * %o2: pci_config_offset | |
61 | * %o3: size | |
62 | * | |
63 | * returns %o0: data | |
64 | * | |
65 | * If there is an error, the data will be returned | |
66 | * as all 1's. | |
67 | */ | |
68 | .globl pci_sun4v_config_get | |
69 | pci_sun4v_config_get: | |
70 | mov %o3, %o4 | |
71 | mov %o2, %o3 | |
72 | mov %o1, %o2 | |
73 | mov %o0, %o1 | |
74 | mov HV_FAST_PCI_CONFIG_GET, %o0 | |
75 | ta HV_FAST_TRAP | |
76 | brnz,a,pn %o1, 1f | |
77 | mov -1, %o2 | |
78 | 1: retl | |
79 | mov %o2, %o0 | |
80 | ||
81 | /* %o0: devhandle | |
82 | * %o1: pci_device | |
83 | * %o2: pci_config_offset | |
84 | * %o3: size | |
85 | * %o4: data | |
86 | * | |
87 | * returns %o0: status | |
88 | * | |
89 | * status will be zero if the operation completed | |
90 | * successfully, else -1 if not | |
91 | */ | |
92 | .globl pci_sun4v_config_put | |
93 | pci_sun4v_config_put: | |
94 | mov %o3, %o4 | |
95 | mov %o2, %o3 | |
96 | mov %o1, %o2 | |
97 | mov %o0, %o1 | |
98 | mov HV_FAST_PCI_CONFIG_PUT, %o0 | |
99 | ta HV_FAST_TRAP | |
100 | brnz,a,pn %o1, 1f | |
101 | mov -1, %o1 | |
102 | 1: retl | |
103 | mov %o1, %o0 | |
104 |