arch/powerpc/platforms/celleb/beat_wrapper.h

   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
  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
  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
  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
  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
  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
  65 static inline s64 beat_pause(u64 style)
  66 {
  67         return beat_hcall_norets(HV_pause, style);
  68 }
  69
  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
  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
  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
 101 static inline void beat_shutdown_logical_partition(u64 code)
 102 {
 103         (void)beat_hcall_norets(HV_shutdown_logical_partition, code);
 104 }
 105
 106 static inline s64 beat_rtc_write(u64 time_from_epoch)
 107 {
 108         return beat_hcall_norets(HV_rtc_write, time_from_epoch);
 109 }
 110
 111 static inline s64 beat_rtc_read(u64 *time_from_epoch)
 112 {
 113         u64 dummy[1];
 114         s64 ret;
 115
 116         ret = beat_hcall1(HV_rtc_read, dummy);
 117         *time_from_epoch = dummy[0];
 118         return ret;
 119 }
 120
 121 #define BEAT_NVRW_CNT   (sizeof(u64) * 6)
 122
 123 static inline s64 beat_eeprom_write(u64 index, u64 length, u8 *buffer)
 124 {
 125         u64     b[6];
 126
 127         if (length > BEAT_NVRW_CNT)
 128                 return -1;
 129         memcpy(b, buffer, sizeof(b));
 130         return beat_hcall_norets8(HV_eeprom_write, index, length,
 131                 b[0], b[1], b[2], b[3], b[4], b[5]);
 132 }
 133
 134 static inline s64 beat_eeprom_read(u64 index, u64 length, u8 *buffer)
 135 {
 136         u64     b[6];
 137         s64     ret;
 138
 139         if (length > BEAT_NVRW_CNT)
 140                 return -1;
 141         ret = beat_hcall6(HV_eeprom_read, b, index, length);
 142         memcpy(buffer, b, length);
 143         return ret;
 144 }
 145
 146 static inline s64 beat_set_dabr(u64 value, u64 style)
 147 {
 148         return beat_hcall_norets(HV_set_dabr, value, style);
 149 }
 150
 151 static inline s64 beat_get_characters_from_console(u64 termno, u64 *len,
 152         u8 *buffer)
 153 {
 154         u64 dummy[3];
 155         s64 ret;
 156
 157         ret = beat_hcall3(HV_get_characters_from_console, dummy, termno, len);
 158         *len = dummy[0];
 159         memcpy(buffer, dummy + 1, *len);
 160         return ret;
 161 }
 162
 163 static inline s64 beat_put_characters_to_console(u64 termno, u64 len,
 164         u8 *buffer)
 165 {
 166         u64 b[2];
 167
 168         memcpy(b, buffer, len);
 169         return beat_hcall_norets(HV_put_characters_to_console, termno, len,                                      b[0], b[1]);
 170 }
 171
 172 static inline s64 beat_get_spe_privileged_state_1_registers(
 173                 u64 id, u64 offsetof, u64 *value)
 174 {
 175         u64 dummy[1];
 176         s64 ret;
 177
 178         ret = beat_hcall1(HV_get_spe_privileged_state_1_registers, dummy, id,
 179                 offsetof);
 180         *value = dummy[0];
 181         return ret;
 182 }
 183
 184 static inline s64 beat_set_irq_mask_for_spe(u64 id, u64 class, u64 mask)
 185 {
 186         return beat_hcall_norets(HV_set_irq_mask_for_spe, id, class, mask);
 187 }
 188
 189 static inline s64 beat_clear_interrupt_status_of_spe(u64 id, u64 class,
 190         u64 mask)
 191 {
 192         return beat_hcall_norets(HV_clear_interrupt_status_of_spe,
 193                 id, class, mask);
 194 }
 195
 196 static inline s64 beat_set_spe_privileged_state_1_registers(
 197                 u64 id, u64 offsetof, u64 value)
 198 {
 199         return beat_hcall_norets(HV_set_spe_privileged_state_1_registers,
 200                 id, offsetof, value);
 201 }
 202
 203 static inline s64 beat_get_interrupt_status_of_spe(u64 id, u64 class, u64 *val)
 204 {
 205         u64 dummy[1];
 206         s64 ret;
 207
 208         ret = beat_hcall1(HV_get_interrupt_status_of_spe, dummy, id, class);
 209         *val = dummy[0];
 210         return ret;
 211 }
 212
 213 static inline s64 beat_put_iopte(u64 ioas_id, u64 io_addr, u64 real_addr,
 214         u64 ioid, u64 flags)
 215 {
 216         return beat_hcall_norets(HV_put_iopte, ioas_id, io_addr, real_addr,
 217                 ioid, flags);
 218 }
 219
 220 #endif