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 */
 26extern s64 beat_hcall_norets(u64 opcode, ...);
 27extern s64 beat_hcall_norets8(u64 opcode, u64 arg1, u64 arg2, u64 arg3,
 28	u64 arg4, u64 arg5, u64 arg6, u64 arg7, u64 arg8);
 29extern s64 beat_hcall1(u64 opcode, u64 retbuf[1], ...);
 30extern s64 beat_hcall2(u64 opcode, u64 retbuf[2], ...);
 31extern s64 beat_hcall3(u64 opcode, u64 retbuf[3], ...);
 32extern s64 beat_hcall4(u64 opcode, u64 retbuf[4], ...);
 33extern s64 beat_hcall5(u64 opcode, u64 retbuf[5], ...);
 34extern s64 beat_hcall6(u64 opcode, u64 retbuf[6], ...);
 35
 36static inline s64 beat_downcount_of_interrupt(u64 plug_id)
 37{
 38	return beat_hcall_norets(HV_downcount_of_interrupt, plug_id);
 39}
 40
 41static 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
 48static inline s64 beat_destruct_irq_plug(u64 plug_id)
 49{
 50	return beat_hcall_norets(HV_destruct_irq_plug, plug_id);
 51}
 52
 53static 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
 60static inline s64 beat_detect_pending_interrupts(u64 index, u64 *retbuf)
 61{
 62	return beat_hcall4(HV_detect_pending_interrupts, retbuf, index);
 63}
 64
 65static inline s64 beat_pause(u64 style)
 66{
 67	return beat_hcall_norets(HV_pause, style);
 68}
 69
 70static 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
 75static 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
 87static 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
101static 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
113static 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
120static 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
127static inline s64 beat_clear_htab3(u64 htab_id)
128{
129	return beat_hcall_norets(HV_clear_htab3, htab_id);
130}
131
132static inline void beat_shutdown_logical_partition(u64 code)
133{
134	(void)beat_hcall_norets(HV_shutdown_logical_partition, code);
135}
136
137static inline s64 beat_rtc_write(u64 time_from_epoch)
138{
139	return beat_hcall_norets(HV_rtc_write, time_from_epoch);
140}
141
142static 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
154static 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
165static 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
177static inline s64 beat_set_dabr(u64 value, u64 style)
178{
179	return beat_hcall_norets(HV_set_dabr, value, style);
180}
181
182static 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
194static 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
204static 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
216static 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
221static 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
228static 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
235static 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
245static 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
252static 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
262static 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
270static 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
279static 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