CONFIG_FILE_LOCKING should not depend on CONFIG_BLOCK
[sfrench/cifs-2.6.git] / arch / ia64 / xen / hypercall.S
1 /*
2  * Support routines for Xen hypercalls
3  *
4  * Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com>
5  * Copyright (C) 2008 Yaozu (Eddie) Dong <eddie.dong@intel.com>
6  */
7
8 #include <asm/asmmacro.h>
9 #include <asm/intrinsics.h>
10 #include <asm/xen/privop.h>
11
12 #ifdef __INTEL_COMPILER
13 /*
14  * Hypercalls without parameter.
15  */
16 #define __HCALL0(name,hcall)            \
17         GLOBAL_ENTRY(name);             \
18         break   hcall;                  \
19         br.ret.sptk.many rp;            \
20         END(name)
21
22 /*
23  * Hypercalls with 1 parameter.
24  */
25 #define __HCALL1(name,hcall)            \
26         GLOBAL_ENTRY(name);             \
27         mov r8=r32;                     \
28         break   hcall;                  \
29         br.ret.sptk.many rp;            \
30         END(name)
31
32 /*
33  * Hypercalls with 2 parameters.
34  */
35 #define __HCALL2(name,hcall)            \
36         GLOBAL_ENTRY(name);             \
37         mov r8=r32;                     \
38         mov r9=r33;                     \
39         break   hcall;                  \
40         br.ret.sptk.many rp;            \
41         END(name)
42
43 __HCALL0(xen_get_psr, HYPERPRIVOP_GET_PSR)
44 __HCALL0(xen_get_ivr, HYPERPRIVOP_GET_IVR)
45 __HCALL0(xen_get_tpr, HYPERPRIVOP_GET_TPR)
46 __HCALL0(xen_hyper_ssm_i, HYPERPRIVOP_SSM_I)
47
48 __HCALL1(xen_set_tpr, HYPERPRIVOP_SET_TPR)
49 __HCALL1(xen_eoi, HYPERPRIVOP_EOI)
50 __HCALL1(xen_thash, HYPERPRIVOP_THASH)
51 __HCALL1(xen_set_itm, HYPERPRIVOP_SET_ITM)
52 __HCALL1(xen_get_rr, HYPERPRIVOP_GET_RR)
53 __HCALL1(xen_fc, HYPERPRIVOP_FC)
54 __HCALL1(xen_get_cpuid, HYPERPRIVOP_GET_CPUID)
55 __HCALL1(xen_get_pmd, HYPERPRIVOP_GET_PMD)
56
57 __HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA)
58 __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
59 __HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
60
61 #ifdef CONFIG_IA32_SUPPORT
62 __HCALL0(xen_get_eflag, HYPERPRIVOP_GET_EFLAG)
63 __HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG)  // refer SDM vol1 3.1.8
64 #endif /* CONFIG_IA32_SUPPORT */
65
66 GLOBAL_ENTRY(xen_set_rr0_to_rr4)
67         mov r8=r32
68         mov r9=r33
69         mov r10=r34
70         mov r11=r35
71         mov r14=r36
72         XEN_HYPER_SET_RR0_TO_RR4
73         br.ret.sptk.many rp
74         ;;
75 END(xen_set_rr0_to_rr4)
76 #endif
77
78 GLOBAL_ENTRY(xen_send_ipi)
79         mov r14=r32
80         mov r15=r33
81         mov r2=0x400
82         break 0x1000
83         ;;
84         br.ret.sptk.many rp
85         ;;
86 END(xen_send_ipi)
87
88 GLOBAL_ENTRY(__hypercall)
89         mov r2=r37
90         break 0x1000
91         br.ret.sptk.many b0
92         ;;
93 END(__hypercall)