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1 /*
2  * Beat hypervisor call I/F
3  *
4  * (C) Copyright 2007 TOSHIBA CORPORATION
5  *
6  * This code is based on arch/powerpc/platforms/pseries/plpar_wrapper.h.
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with this program; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  */
22 #ifndef BEAT_HCALL
23 #include "beat_syscall.h"
24 
25 /* defined in hvCall.S */
26 extern s64 beat_hcall_norets(u64 opcode, ...);
27 extern s64 beat_hcall_norets8(u64 opcode, u64 arg1, u64 arg2, u64 arg3,
28 	u64 arg4, u64 arg5, u64 arg6, u64 arg7, u64 arg8);
29 extern s64 beat_hcall1(u64 opcode, u64 retbuf[1], ...);
30 extern s64 beat_hcall2(u64 opcode, u64 retbuf[2], ...);
31 extern s64 beat_hcall3(u64 opcode, u64 retbuf[3], ...);
32 extern s64 beat_hcall4(u64 opcode, u64 retbuf[4], ...);
33 extern s64 beat_hcall5(u64 opcode, u64 retbuf[5], ...);
34 extern s64 beat_hcall6(u64 opcode, u64 retbuf[6], ...);
35 
beat_downcount_of_interrupt(u64 plug_id)36 static inline s64 beat_downcount_of_interrupt(u64 plug_id)
37 {
38 	return beat_hcall_norets(HV_downcount_of_interrupt, plug_id);
39 }
40 
beat_set_interrupt_mask(u64 index,u64 val0,u64 val1,u64 val2,u64 val3)41 static inline s64 beat_set_interrupt_mask(u64 index,
42 	u64 val0, u64 val1, u64 val2, u64 val3)
43 {
44 	return beat_hcall_norets(HV_set_interrupt_mask, index,
45 	       val0, val1, val2, val3);
46 }
47 
beat_destruct_irq_plug(u64 plug_id)48 static inline s64 beat_destruct_irq_plug(u64 plug_id)
49 {
50 	return beat_hcall_norets(HV_destruct_irq_plug, plug_id);
51 }
52 
beat_construct_and_connect_irq_plug(u64 plug_id,u64 outlet_id)53 static inline s64 beat_construct_and_connect_irq_plug(u64 plug_id,
54 	u64 outlet_id)
55 {
56 	return beat_hcall_norets(HV_construct_and_connect_irq_plug, plug_id,
57 	       outlet_id);
58 }
59 
beat_detect_pending_interrupts(u64 index,u64 * retbuf)60 static inline s64 beat_detect_pending_interrupts(u64 index, u64 *retbuf)
61 {
62 	return beat_hcall4(HV_detect_pending_interrupts, retbuf, index);
63 }
64 
beat_pause(u64 style)65 static inline s64 beat_pause(u64 style)
66 {
67 	return beat_hcall_norets(HV_pause, style);
68 }
69 
beat_read_htab_entries(u64 htab_id,u64 index,u64 * retbuf)70 static inline s64 beat_read_htab_entries(u64 htab_id, u64 index, u64 *retbuf)
71 {
72 	return beat_hcall5(HV_read_htab_entries, retbuf, htab_id, index);
73 }
74 
beat_insert_htab_entry(u64 htab_id,u64 group,u64 bitmask,u64 hpte_v,u64 hpte_r,u64 * slot)75 static inline s64 beat_insert_htab_entry(u64 htab_id, u64 group,
76 	u64 bitmask, u64 hpte_v, u64 hpte_r, u64 *slot)
77 {
78 	u64 dummy[3];
79 	s64 ret;
80 
81 	ret = beat_hcall3(HV_insert_htab_entry, dummy, htab_id, group,
82 		bitmask, hpte_v, hpte_r);
83 	*slot = dummy[0];
84 	return ret;
85 }
86 
beat_write_htab_entry(u64 htab_id,u64 slot,u64 hpte_v,u64 hpte_r,u64 mask_v,u64 mask_r,u64 * ret_v,u64 * ret_r)87 static inline s64 beat_write_htab_entry(u64 htab_id, u64 slot,
88 	u64 hpte_v, u64 hpte_r, u64 mask_v, u64 mask_r,
89 	u64 *ret_v, u64 *ret_r)
90 {
91 	u64 dummy[2];
92 	s64 ret;
93 
94 	ret = beat_hcall2(HV_write_htab_entry, dummy, htab_id, slot,
95 		hpte_v, hpte_r, mask_v, mask_r);
96 	*ret_v = dummy[0];
97 	*ret_r = dummy[1];
98 	return ret;
99 }
100 
beat_insert_htab_entry3(u64 htab_id,u64 group,u64 hpte_v,u64 hpte_r,u64 mask_v,u64 value_v,u64 * slot)101 static inline s64 beat_insert_htab_entry3(u64 htab_id, u64 group,
102 	u64 hpte_v, u64 hpte_r, u64 mask_v, u64 value_v, u64 *slot)
103 {
104 	u64 dummy[1];
105 	s64 ret;
106 
107 	ret = beat_hcall1(HV_insert_htab_entry3, dummy, htab_id, group,
108 		hpte_v, hpte_r, mask_v, value_v);
109 	*slot = dummy[0];
110 	return ret;
111 }
112 
beat_invalidate_htab_entry3(u64 htab_id,u64 group,u64 va,u64 pss)113 static inline s64 beat_invalidate_htab_entry3(u64 htab_id, u64 group,
114 	u64 va, u64 pss)
115 {
116 	return beat_hcall_norets(HV_invalidate_htab_entry3,
117 		htab_id, group, va, pss);
118 }
119 
beat_update_htab_permission3(u64 htab_id,u64 group,u64 va,u64 pss,u64 ptel_mask,u64 ptel_value)120 static inline s64 beat_update_htab_permission3(u64 htab_id, u64 group,
121 	u64 va, u64 pss, u64 ptel_mask, u64 ptel_value)
122 {
123 	return beat_hcall_norets(HV_update_htab_permission3,
124 		htab_id, group, va, pss, ptel_mask, ptel_value);
125 }
126 
beat_clear_htab3(u64 htab_id)127 static inline s64 beat_clear_htab3(u64 htab_id)
128 {
129 	return beat_hcall_norets(HV_clear_htab3, htab_id);
130 }
131 
beat_shutdown_logical_partition(u64 code)132 static inline void beat_shutdown_logical_partition(u64 code)
133 {
134 	(void)beat_hcall_norets(HV_shutdown_logical_partition, code);
135 }
136 
beat_rtc_write(u64 time_from_epoch)137 static inline s64 beat_rtc_write(u64 time_from_epoch)
138 {
139 	return beat_hcall_norets(HV_rtc_write, time_from_epoch);
140 }
141 
beat_rtc_read(u64 * time_from_epoch)142 static inline s64 beat_rtc_read(u64 *time_from_epoch)
143 {
144 	u64 dummy[1];
145 	s64 ret;
146 
147 	ret = beat_hcall1(HV_rtc_read, dummy);
148 	*time_from_epoch = dummy[0];
149 	return ret;
150 }
151 
152 #define	BEAT_NVRW_CNT	(sizeof(u64) * 6)
153 
beat_eeprom_write(u64 index,u64 length,u8 * buffer)154 static inline s64 beat_eeprom_write(u64 index, u64 length, u8 *buffer)
155 {
156 	u64	b[6];
157 
158 	if (length > BEAT_NVRW_CNT)
159 		return -1;
160 	memcpy(b, buffer, sizeof(b));
161 	return beat_hcall_norets8(HV_eeprom_write, index, length,
162 		b[0], b[1], b[2], b[3], b[4], b[5]);
163 }
164 
beat_eeprom_read(u64 index,u64 length,u8 * buffer)165 static inline s64 beat_eeprom_read(u64 index, u64 length, u8 *buffer)
166 {
167 	u64	b[6];
168 	s64	ret;
169 
170 	if (length > BEAT_NVRW_CNT)
171 		return -1;
172 	ret = beat_hcall6(HV_eeprom_read, b, index, length);
173 	memcpy(buffer, b, length);
174 	return ret;
175 }
176 
beat_set_dabr(u64 value,u64 style)177 static inline s64 beat_set_dabr(u64 value, u64 style)
178 {
179 	return beat_hcall_norets(HV_set_dabr, value, style);
180 }
181 
beat_get_characters_from_console(u64 termno,u64 * len,u8 * buffer)182 static inline s64 beat_get_characters_from_console(u64 termno, u64 *len,
183 	u8 *buffer)
184 {
185 	u64 dummy[3];
186 	s64 ret;
187 
188 	ret = beat_hcall3(HV_get_characters_from_console, dummy, termno, len);
189 	*len = dummy[0];
190 	memcpy(buffer, dummy + 1, *len);
191 	return ret;
192 }
193 
beat_put_characters_to_console(u64 termno,u64 len,u8 * buffer)194 static inline s64 beat_put_characters_to_console(u64 termno, u64 len,
195 	u8 *buffer)
196 {
197 	u64 b[2];
198 
199 	memcpy(b, buffer, len);
200 	return beat_hcall_norets(HV_put_characters_to_console, termno, len,
201 		b[0], b[1]);
202 }
203 
beat_get_spe_privileged_state_1_registers(u64 id,u64 offsetof,u64 * value)204 static inline s64 beat_get_spe_privileged_state_1_registers(
205 		u64 id, u64 offsetof, u64 *value)
206 {
207 	u64 dummy[1];
208 	s64 ret;
209 
210 	ret = beat_hcall1(HV_get_spe_privileged_state_1_registers, dummy, id,
211 		offsetof);
212 	*value = dummy[0];
213 	return ret;
214 }
215 
beat_set_irq_mask_for_spe(u64 id,u64 class,u64 mask)216 static inline s64 beat_set_irq_mask_for_spe(u64 id, u64 class, u64 mask)
217 {
218 	return beat_hcall_norets(HV_set_irq_mask_for_spe, id, class, mask);
219 }
220 
beat_clear_interrupt_status_of_spe(u64 id,u64 class,u64 mask)221 static inline s64 beat_clear_interrupt_status_of_spe(u64 id, u64 class,
222 	u64 mask)
223 {
224 	return beat_hcall_norets(HV_clear_interrupt_status_of_spe,
225 		id, class, mask);
226 }
227 
beat_set_spe_privileged_state_1_registers(u64 id,u64 offsetof,u64 value)228 static inline s64 beat_set_spe_privileged_state_1_registers(
229 		u64 id, u64 offsetof, u64 value)
230 {
231 	return beat_hcall_norets(HV_set_spe_privileged_state_1_registers,
232 		id, offsetof, value);
233 }
234 
beat_get_interrupt_status_of_spe(u64 id,u64 class,u64 * val)235 static inline s64 beat_get_interrupt_status_of_spe(u64 id, u64 class, u64 *val)
236 {
237 	u64 dummy[1];
238 	s64 ret;
239 
240 	ret = beat_hcall1(HV_get_interrupt_status_of_spe, dummy, id, class);
241 	*val = dummy[0];
242 	return ret;
243 }
244 
beat_put_iopte(u64 ioas_id,u64 io_addr,u64 real_addr,u64 ioid,u64 flags)245 static inline s64 beat_put_iopte(u64 ioas_id, u64 io_addr, u64 real_addr,
246 	u64 ioid, u64 flags)
247 {
248 	return beat_hcall_norets(HV_put_iopte, ioas_id, io_addr, real_addr,
249 		ioid, flags);
250 }
251 
beat_construct_event_receive_port(u64 * port)252 static inline s64 beat_construct_event_receive_port(u64 *port)
253 {
254 	u64 dummy[1];
255 	s64 ret;
256 
257 	ret = beat_hcall1(HV_construct_event_receive_port, dummy);
258 	*port = dummy[0];
259 	return ret;
260 }
261 
beat_destruct_event_receive_port(u64 port)262 static inline s64 beat_destruct_event_receive_port(u64 port)
263 {
264 	s64 ret;
265 
266 	ret = beat_hcall_norets(HV_destruct_event_receive_port, port);
267 	return ret;
268 }
269 
beat_create_repository_node(u64 path[4],u64 data[2])270 static inline s64 beat_create_repository_node(u64 path[4], u64 data[2])
271 {
272 	s64 ret;
273 
274 	ret = beat_hcall_norets(HV_create_repository_node2,
275 		path[0], path[1], path[2], path[3], data[0], data[1]);
276 	return ret;
277 }
278 
beat_get_repository_node_value(u64 lpid,u64 path[4],u64 data[2])279 static inline s64 beat_get_repository_node_value(u64 lpid, u64 path[4],
280 	u64 data[2])
281 {
282 	s64 ret;
283 
284 	ret = beat_hcall2(HV_get_repository_node_value2, data,
285 		lpid, path[0], path[1], path[2], path[3]);
286 	return ret;
287 }
288 
289 #endif
290