2 * Declarations for to Hexagon Virtal Machine.
4 * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 and
8 * only version 2 as published by the Free Software Foundation.
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
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16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 #ifndef ASM_HEXAGON_VM_H
22 #define ASM_HEXAGON_VM_H
25 * In principle, a Linux kernel for the VM could
26 * selectively define the virtual instructions
27 * as inline assembler macros, but for a first pass,
28 * we'll use subroutines for both the VM and the native
29 * kernels. It's costing a subroutine call/return,
30 * but it makes for a single set of entry points
31 * for tracing/debugging.
34 #define HVM_TRAP1_VMVERSION 0
35 #define HVM_TRAP1_VMRTE 1
36 #define HVM_TRAP1_VMSETVEC 2
37 #define HVM_TRAP1_VMSETIE 3
38 #define HVM_TRAP1_VMGETIE 4
39 #define HVM_TRAP1_VMINTOP 5
40 #define HVM_TRAP1_VMCLRMAP 10
41 #define HVM_TRAP1_VMNEWMAP 11
42 #define HVM_TRAP1_FORMERLY_VMWIRE 12
43 #define HVM_TRAP1_VMCACHE 13
44 #define HVM_TRAP1_VMGETTIME 14
45 #define HVM_TRAP1_VMSETTIME 15
46 #define HVM_TRAP1_VMWAIT 16
47 #define HVM_TRAP1_VMYIELD 17
48 #define HVM_TRAP1_VMSTART 18
49 #define HVM_TRAP1_VMSTOP 19
50 #define HVM_TRAP1_VMVPID 20
51 #define HVM_TRAP1_VMSETREGS 21
52 #define HVM_TRAP1_VMGETREGS 22
53 #define HVM_TRAP1_VMTIMEROP 24
81 extern void _K_VM_event_vector(void);
84 long __vmsetvec(void *);
87 long __vmintop(enum VM_INT_OPS
, long, long, long, long);
88 long __vmclrmap(void *, unsigned long);
89 long __vmnewmap(void *);
90 long __vmcache(enum VM_CACHE_OPS op
, unsigned long addr
, unsigned long len
);
91 unsigned long long __vmgettime(void);
92 long __vmsettime(unsigned long long);
93 long __vmstart(void *, void *);
99 static inline long __vmcache_ickill(void)
101 return __vmcache(hvmc_ickill
, 0, 0);
104 static inline long __vmcache_dckill(void)
106 return __vmcache(hvmc_dckill
, 0, 0);
109 static inline long __vmcache_l2kill(void)
111 return __vmcache(hvmc_l2kill
, 0, 0);
114 static inline long __vmcache_dccleaninva(unsigned long addr
, unsigned long len
)
116 return __vmcache(hvmc_dccleaninva
, addr
, len
);
119 static inline long __vmcache_icinva(unsigned long addr
, unsigned long len
)
121 return __vmcache(hvmc_icinva
, addr
, len
);
124 static inline long __vmcache_idsync(unsigned long addr
,
127 return __vmcache(hvmc_idsync
, addr
, len
);
130 static inline long __vmcache_fetch_cfg(unsigned long val
)
132 return __vmcache(hvmc_fetch_cfg
, val
, 0);
135 /* interrupt operations */
137 static inline long __vmintop_nop(void)
139 return __vmintop(hvmi_nop
, 0, 0, 0, 0);
142 static inline long __vmintop_globen(long i
)
144 return __vmintop(hvmi_globen
, i
, 0, 0, 0);
147 static inline long __vmintop_globdis(long i
)
149 return __vmintop(hvmi_globdis
, i
, 0, 0, 0);
152 static inline long __vmintop_locen(long i
)
154 return __vmintop(hvmi_locen
, i
, 0, 0, 0);
157 static inline long __vmintop_locdis(long i
)
159 return __vmintop(hvmi_locdis
, i
, 0, 0, 0);
162 static inline long __vmintop_affinity(long i
, long cpu
)
164 return __vmintop(hvmi_affinity
, i
, cpu
, 0, 0);
167 static inline long __vmintop_get(void)
169 return __vmintop(hvmi_get
, 0, 0, 0, 0);
172 static inline long __vmintop_peek(void)
174 return __vmintop(hvmi_peek
, 0, 0, 0, 0);
177 static inline long __vmintop_status(long i
)
179 return __vmintop(hvmi_status
, i
, 0, 0, 0);
182 static inline long __vmintop_post(long i
)
184 return __vmintop(hvmi_post
, i
, 0, 0, 0);
187 static inline long __vmintop_clear(long i
)
189 return __vmintop(hvmi_clear
, i
, 0, 0, 0);
192 #else /* Only assembly code should reference these */
194 #endif /* __ASSEMBLY__ */
197 * Constants for virtual instruction parameters and return values
200 /* vmnewmap arguments */
202 #define VM_TRANS_TYPE_LINEAR 0
203 #define VM_TRANS_TYPE_TABLE 1
204 #define VM_TLB_INVALIDATE_FALSE 0
205 #define VM_TLB_INVALIDATE_TRUE 1
207 /* vmsetie arguments */
209 #define VM_INT_DISABLE 0
210 #define VM_INT_ENABLE 1
212 /* vmsetimask arguments */
214 #define VM_INT_UNMASK 0
215 #define VM_INT_MASK 1
217 #define VM_NEWMAP_TYPE_LINEAR 0
218 #define VM_NEWMAP_TYPE_PGTABLES 1
222 * Event Record definitions useful to both C and Assembler
227 #define HVM_VMEST_UM_SFT 31
228 #define HVM_VMEST_UM_MSK 1
229 #define HVM_VMEST_IE_SFT 30
230 #define HVM_VMEST_IE_MSK 1
231 #define HVM_VMEST_SS_SFT 29
232 #define HVM_VMEST_SS_MSK 1
233 #define HVM_VMEST_EVENTNUM_SFT 16
234 #define HVM_VMEST_EVENTNUM_MSK 0xff
235 #define HVM_VMEST_CAUSE_SFT 0
236 #define HVM_VMEST_CAUSE_MSK 0xffff
239 * The initial program gets to find a system environment descriptor
240 * on its stack when it begins exection. The first word is a version
241 * code to indicate what is there. Zero means nothing more.
244 #define HEXAGON_VM_SED_NULL 0
247 * Event numbers for vector binding
250 #define HVM_EV_RESET 0
251 #define HVM_EV_MACHCHECK 1
252 #define HVM_EV_GENEX 2
253 #define HVM_EV_TRAP 8
254 #define HVM_EV_INTR 15
255 /* These shoud be nuked as soon as we know the VM is up to spec v0.1.1 */
256 #define HVM_EV_INTR_0 16
257 #define HVM_MAX_INTR 240
260 * Cause values for General Exception
263 #define HVM_GE_C_BUS 0x01
264 #define HVM_GE_C_XPROT 0x11
265 #define HVM_GE_C_XUSER 0x14
266 #define HVM_GE_C_INVI 0x15
267 #define HVM_GE_C_PRIVI 0x1B
268 #define HVM_GE_C_XMAL 0x1C
269 #define HVM_GE_C_WREG 0x1D
270 #define HVM_GE_C_PCAL 0x1E
271 #define HVM_GE_C_RMAL 0x20
272 #define HVM_GE_C_WMAL 0x21
273 #define HVM_GE_C_RPROT 0x22
274 #define HVM_GE_C_WPROT 0x23
275 #define HVM_GE_C_RUSER 0x24
276 #define HVM_GE_C_WUSER 0x25
277 #define HVM_GE_C_CACHE 0x28
280 * Cause codes for Machine Check
283 #define HVM_MCHK_C_DOWN 0x00
284 #define HVM_MCHK_C_BADSP 0x01
285 #define HVM_MCHK_C_BADEX 0x02
286 #define HVM_MCHK_C_BADPT 0x03
287 #define HVM_MCHK_C_REGWR 0x29