aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-powerpc/hvcall.h
blob: da7af5a720e098adf14ad1ccf9b0817e9d429fde (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
#ifndef _ASM_POWERPC_HVCALL_H
#define _ASM_POWERPC_HVCALL_H
#ifdef __KERNEL__

#define HVSC			.long 0x44000022

#define H_Success	0
#define H_Busy		1	/* Hardware busy -- retry later */
#define H_Constrained	4	/* Resource request constrained to max allowed */
#define H_LongBusyStartRange   9900  /* Start of long busy range */
#define H_LongBusyOrder1msec   9900  /* Long busy, hint that 1msec is a good time to retry */
#define H_LongBusyOrder10msec  9901  /* Long busy, hint that 10msec is a good time to retry */
#define H_LongBusyOrder100msec 9902  /* Long busy, hint that 100msec is a good time to retry */
#define H_LongBusyOrder1sec    9903  /* Long busy, hint that 1sec is a good time to retry */
#define H_LongBusyOrder10sec   9904  /* Long busy, hint that 10sec is a good time to retry */
#define H_LongBusyOrder100sec  9905  /* Long busy, hint that 100sec is a good time to retry */
#define H_LongBusyEndRange     9905  /* End of long busy range */
#define H_Hardware	-1	/* Hardware error */
#define H_Function	-2	/* Function not supported */
#define H_Privilege	-3	/* Caller not privileged */
#define H_Parameter	-4	/* Parameter invalid, out-of-range or conflicting */
#define H_Bad_Mode	-5	/* Illegal msr value */
#define H_PTEG_Full	-6	/* PTEG is full */
#define H_Not_Found	-7	/* PTE was not found" */
#define H_Reserved_DABR	-8	/* DABR address is reserved by the hypervisor on this processor" */
#define H_NoMem                 -9
#define H_Authority            -10
#define H_Permission           -11
#define H_Dropped              -12
#define H_SourceParm           -13
#define H_DestParm             -14
#define H_RemoteParm           -15
#define H_Resource             -16

/* Long Busy is a condition that can be returned by the firmware
 * when a call cannot be completed now, but the identical call
 * should be retried later.  This prevents calls blocking in the
 * firmware for long periods of time. Annoyingly the firmware can return
 * a range of return codes, hinting at how long we should wait before
 * retrying.  If you don't care for the hint, the macro below is a good
 * way to check for the long_busy return codes
 */
#define H_isLongBusy(x)  ((x >= H_LongBusyStartRange) && (x <= H_LongBusyEndRange))

/* Flags */
#define H_LARGE_PAGE		(1UL<<(63-16))
#define H_EXACT			(1UL<<(63-24))	/* Use exact PTE or return H_PTEG_FULL */
#define H_R_XLATE		(1UL<<(63-25))	/* include a valid logical page num in the pte if the valid bit is set */
#define H_READ_4		(1UL<<(63-26))	/* Return 4 PTEs */
#define H_AVPN			(1UL<<(63-32))	/* An avpn is provided as a sanity test */
#define H_ANDCOND		(1UL<<(63-33))
#define H_ICACHE_INVALIDATE	(1UL<<(63-40))	/* icbi, etc.  (ignored for IO pages) */
#define H_ICACHE_SYNCHRONIZE	(1UL<<(63-41))	/* dcbst, icbi, etc (ignored for IO pages */
#define H_ZERO_PAGE		(1UL<<(63-48))	/* zero the page before mapping (ignored for IO pages) */
#define H_COPY_PAGE		(1UL<<(63-49))
#define H_N			(1UL<<(63-61))
#define H_PP1			(1UL<<(63-62))
#define H_PP2			(1UL<<(63-63))

/* DABRX flags */
#define H_DABRX_HYPERVISOR	(1UL<<(63-61))
#define H_DABRX_KERNEL		(1UL<<(63-62))
#define H_DABRX_USER		(1UL<<(63-63))

/* pSeries hypervisor opcodes */
#define H_REMOVE		0x04
#define H_ENTER			0x08
#define H_READ			0x0c
#define H_CLEAR_MOD		0x10
#define H_CLEAR_REF		0x14
#define H_PROTECT		0x18
#define H_GET_TCE		0x1c
#define H_PUT_TCE		0x20
#define H_SET_SPRG0		0x24
#define H_SET_DABR		0x28
#define H_PAGE_INIT		0x2c
#define H_SET_ASR		0x30
#define H_ASR_ON		0x34
#define H_ASR_OFF		0x38
#define H_LOGICAL_CI_LOAD	0x3c
#define H_LOGICAL_CI_STORE	0x40
#define H_LOGICAL_CACHE_LOAD	0x44
#define H_LOGICAL_CACHE_STORE	0x48
#define H_LOGICAL_ICBI		0x4c
#define H_LOGICAL_DCBF		0x50
#define H_GET_TERM_CHAR		0x54
#define H_PUT_TERM_CHAR		0x58
#define H_REAL_TO_LOGICAL	0x5c
#define H_HYPERVISOR_DATA	0x60
#define H_EOI			0x64
#define H_CPPR			0x68
#define H_IPI			0x6c
#define H_IPOLL			0x70
#define H_XIRR			0x74
#define H_PERFMON		0x7c
#define H_MIGRATE_DMA		0x78
#define H_REGISTER_VPA		0xDC
#define H_CEDE		        0xE0
#define H_CONFER		0xE4
#define H_PROD		        0xE8
#define H_GET_PPP		0xEC
#define H_SET_PPP		0xF0
#define H_PURR			0xF4
#define H_PIC		        0xF8
#define H_REG_CRQ		0xFC
#define H_FREE_CRQ		0x100
#define H_VIO_SIGNAL		0x104
#define H_SEND_CRQ		0x108
#define H_COPY_RDMA             0x110
#define H_SET_XDABR		0x134
#define H_STUFF_TCE		0x138
#define H_PUT_TCE_INDIRECT	0x13C
#define H_VTERM_PARTNER_INFO	0x150
#define H_REGISTER_VTERM	0x154
#define H_FREE_VTERM		0x158
#define H_POLL_PENDING	        0x1D8

#ifndef __ASSEMBLY__

/* plpar_hcall() -- Generic call interface using above opcodes
 *
 * The actual call interface is a hypervisor call instruction with
 * the opcode in R3 and input args in R4-R7.
 * Status is returned in R3 with variable output values in R4-R11.
 * Only H_PTE_READ with H_READ_4 uses R6-R11 so we ignore it for now
 * and return only two out args which MUST ALWAYS BE PROVIDED.
 */
long plpar_hcall(unsigned long opcode,
		 unsigned long arg1,
		 unsigned long arg2,
		 unsigned long arg3,
		 unsigned long arg4,
		 unsigned long *out1,
		 unsigned long *out2,
		 unsigned long *out3);

/* Same as plpar_hcall but for those opcodes that return no values
 * other than status.  Slightly more efficient.
 */
long plpar_hcall_norets(unsigned long opcode, ...);

/*
 * Special hcall interface for ibmveth support.
 * Takes 8 input parms. Returns a rc and stores the
 * R4 return value in *out1.
 */
long plpar_hcall_8arg_2ret(unsigned long opcode,
			   unsigned long arg1,
		  	   unsigned long arg2,
			   unsigned long arg3,
			   unsigned long arg4,
			   unsigned long arg5,
			   unsigned long arg6,
			   unsigned long arg7,
			   unsigned long arg8,
			   unsigned long *out1);

/* plpar_hcall_4out()
 *
 * same as plpar_hcall except with 4 output arguments.
 *
 */
long plpar_hcall_4out(unsigned long opcode,
		      unsigned long arg1,
		      unsigned long arg2,
		      unsigned long arg3,
		      unsigned long arg4,
		      unsigned long *out1,
		      unsigned long *out2,
		      unsigned long *out3,
		      unsigned long *out4);

#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_HVCALL_H */