arch/tile/kernel/hvglue_trace.c

   1 /*
   2  * Copyright 2013 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14
  15 /*
  16  * Pull in the hypervisor header so we declare all the ABI functions
  17  * with the underscore versions, then undef the names so that we can
  18  * provide our own wrapper versions.
  19  */
  20 #define hv_init _hv_init
  21 #define hv_install_context _hv_install_context
  22 #define hv_sysconf _hv_sysconf
  23 #define hv_get_rtc _hv_get_rtc
  24 #define hv_set_rtc _hv_set_rtc
  25 #define hv_flush_asid _hv_flush_asid
  26 #define hv_flush_page _hv_flush_page
  27 #define hv_flush_pages _hv_flush_pages
  28 #define hv_restart _hv_restart
  29 #define hv_halt _hv_halt
  30 #define hv_power_off _hv_power_off
  31 #define hv_inquire_physical _hv_inquire_physical
  32 #define hv_inquire_memory_controller _hv_inquire_memory_controller
  33 #define hv_inquire_virtual _hv_inquire_virtual
  34 #define hv_inquire_asid _hv_inquire_asid
  35 #define hv_nanosleep _hv_nanosleep
  36 #define hv_console_read_if_ready _hv_console_read_if_ready
  37 #define hv_console_write _hv_console_write
  38 #define hv_downcall_dispatch _hv_downcall_dispatch
  39 #define hv_inquire_topology _hv_inquire_topology
  40 #define hv_fs_findfile _hv_fs_findfile
  41 #define hv_fs_fstat _hv_fs_fstat
  42 #define hv_fs_pread _hv_fs_pread
  43 #define hv_physaddr_read64 _hv_physaddr_read64
  44 #define hv_physaddr_write64 _hv_physaddr_write64
  45 #define hv_get_command_line _hv_get_command_line
  46 #define hv_set_caching _hv_set_caching
  47 #define hv_bzero_page _hv_bzero_page
  48 #define hv_register_message_state _hv_register_message_state
  49 #define hv_send_message _hv_send_message
  50 #define hv_receive_message _hv_receive_message
  51 #define hv_inquire_context _hv_inquire_context
  52 #define hv_start_all_tiles _hv_start_all_tiles
  53 #define hv_dev_open _hv_dev_open
  54 #define hv_dev_close _hv_dev_close
  55 #define hv_dev_pread _hv_dev_pread
  56 #define hv_dev_pwrite _hv_dev_pwrite
  57 #define hv_dev_poll _hv_dev_poll
  58 #define hv_dev_poll_cancel _hv_dev_poll_cancel
  59 #define hv_dev_preada _hv_dev_preada
  60 #define hv_dev_pwritea _hv_dev_pwritea
  61 #define hv_flush_remote _hv_flush_remote
  62 #define hv_console_putc _hv_console_putc
  63 #define hv_inquire_tiles _hv_inquire_tiles
  64 #define hv_confstr _hv_confstr
  65 #define hv_reexec _hv_reexec
  66 #define hv_set_command_line _hv_set_command_line
  67 #define hv_clear_intr _hv_clear_intr
  68 #define hv_enable_intr _hv_enable_intr
  69 #define hv_disable_intr _hv_disable_intr
  70 #define hv_raise_intr _hv_raise_intr
  71 #define hv_trigger_ipi _hv_trigger_ipi
  72 #define hv_store_mapping _hv_store_mapping
  73 #define hv_inquire_realpa _hv_inquire_realpa
  74 #define hv_flush_all _hv_flush_all
  75 #define hv_get_ipi_pte _hv_get_ipi_pte
  76 #define hv_set_pte_super_shift _hv_set_pte_super_shift
  77 #define hv_console_set_ipi _hv_console_set_ipi
  78 #include <hv/hypervisor.h>
  79 #undef hv_init
  80 #undef hv_install_context
  81 #undef hv_sysconf
  82 #undef hv_get_rtc
  83 #undef hv_set_rtc
  84 #undef hv_flush_asid
  85 #undef hv_flush_page
  86 #undef hv_flush_pages
  87 #undef hv_restart
  88 #undef hv_halt
  89 #undef hv_power_off
  90 #undef hv_inquire_physical
  91 #undef hv_inquire_memory_controller
  92 #undef hv_inquire_virtual
  93 #undef hv_inquire_asid
  94 #undef hv_nanosleep
  95 #undef hv_console_read_if_ready
  96 #undef hv_console_write
  97 #undef hv_downcall_dispatch
  98 #undef hv_inquire_topology
  99 #undef hv_fs_findfile
 100 #undef hv_fs_fstat
 101 #undef hv_fs_pread
 102 #undef hv_physaddr_read64
 103 #undef hv_physaddr_write64
 104 #undef hv_get_command_line
 105 #undef hv_set_caching
 106 #undef hv_bzero_page
 107 #undef hv_register_message_state
 108 #undef hv_send_message
 109 #undef hv_receive_message
 110 #undef hv_inquire_context
 111 #undef hv_start_all_tiles
 112 #undef hv_dev_open
 113 #undef hv_dev_close
 114 #undef hv_dev_pread
 115 #undef hv_dev_pwrite
 116 #undef hv_dev_poll
 117 #undef hv_dev_poll_cancel
 118 #undef hv_dev_preada
 119 #undef hv_dev_pwritea
 120 #undef hv_flush_remote
 121 #undef hv_console_putc
 122 #undef hv_inquire_tiles
 123 #undef hv_confstr
 124 #undef hv_reexec
 125 #undef hv_set_command_line
 126 #undef hv_clear_intr
 127 #undef hv_enable_intr
 128 #undef hv_disable_intr
 129 #undef hv_raise_intr
 130 #undef hv_trigger_ipi
 131 #undef hv_store_mapping
 132 #undef hv_inquire_realpa
 133 #undef hv_flush_all
 134 #undef hv_get_ipi_pte
 135 #undef hv_set_pte_super_shift
 136 #undef hv_console_set_ipi
 137
 138 /*
 139  * Provide macros based on <linux/syscalls.h> to provide a wrapper
 140  * function that invokes the same function with an underscore prefix.
 141  * We can't use the existing __SC_xxx macros because we need to
 142  * support up to nine arguments rather than up to six, and also this
 143  * way the file stands alone from possible changes in the
 144  * implementation of <linux/syscalls.h>.
 145  */
 146 #define HV_WRAP0(type, name)                                    \
 147         type name(void);                                        \
 148         type name(void)                                         \
 149         {                                                       \
 150                 return _##name();                               \
 151         }
 152 #define __HV_DECL1(t1, a1)      t1 a1
 153 #define __HV_DECL2(t2, a2, ...) t2 a2, __HV_DECL1(__VA_ARGS__)
 154 #define __HV_DECL3(t3, a3, ...) t3 a3, __HV_DECL2(__VA_ARGS__)
 155 #define __HV_DECL4(t4, a4, ...) t4 a4, __HV_DECL3(__VA_ARGS__)
 156 #define __HV_DECL5(t5, a5, ...) t5 a5, __HV_DECL4(__VA_ARGS__)
 157 #define __HV_DECL6(t6, a6, ...) t6 a6, __HV_DECL5(__VA_ARGS__)
 158 #define __HV_DECL7(t7, a7, ...) t7 a7, __HV_DECL6(__VA_ARGS__)
 159 #define __HV_DECL8(t8, a8, ...) t8 a8, __HV_DECL7(__VA_ARGS__)
 160 #define __HV_DECL9(t9, a9, ...) t9 a9, __HV_DECL8(__VA_ARGS__)
 161 #define __HV_PASS1(t1, a1)      a1
 162 #define __HV_PASS2(t2, a2, ...) a2, __HV_PASS1(__VA_ARGS__)
 163 #define __HV_PASS3(t3, a3, ...) a3, __HV_PASS2(__VA_ARGS__)
 164 #define __HV_PASS4(t4, a4, ...) a4, __HV_PASS3(__VA_ARGS__)
 165 #define __HV_PASS5(t5, a5, ...) a5, __HV_PASS4(__VA_ARGS__)
 166 #define __HV_PASS6(t6, a6, ...) a6, __HV_PASS5(__VA_ARGS__)
 167 #define __HV_PASS7(t7, a7, ...) a7, __HV_PASS6(__VA_ARGS__)
 168 #define __HV_PASS8(t8, a8, ...) a8, __HV_PASS7(__VA_ARGS__)
 169 #define __HV_PASS9(t9, a9, ...) a9, __HV_PASS8(__VA_ARGS__)
 170 #define HV_WRAPx(x, type, name, ...)                            \
 171         type name(__HV_DECL##x(__VA_ARGS__));                   \
 172         type name(__HV_DECL##x(__VA_ARGS__))                    \
 173         {                                                       \
 174                 return _##name(__HV_PASS##x(__VA_ARGS__));      \
 175         }
 176 #define HV_WRAP1(type, name, ...) HV_WRAPx(1, type, name, __VA_ARGS__)
 177 #define HV_WRAP2(type, name, ...) HV_WRAPx(2, type, name, __VA_ARGS__)
 178 #define HV_WRAP3(type, name, ...) HV_WRAPx(3, type, name, __VA_ARGS__)
 179 #define HV_WRAP4(type, name, ...) HV_WRAPx(4, type, name, __VA_ARGS__)
 180 #define HV_WRAP5(type, name, ...) HV_WRAPx(5, type, name, __VA_ARGS__)
 181 #define HV_WRAP6(type, name, ...) HV_WRAPx(6, type, name, __VA_ARGS__)
 182 #define HV_WRAP7(type, name, ...) HV_WRAPx(7, type, name, __VA_ARGS__)
 183 #define HV_WRAP8(type, name, ...) HV_WRAPx(8, type, name, __VA_ARGS__)
 184 #define HV_WRAP9(type, name, ...) HV_WRAPx(9, type, name, __VA_ARGS__)
 185
 186 /* List all the hypervisor API functions. */
 187 HV_WRAP4(void, hv_init, HV_VersionNumber, interface_version_number,
 188          int, chip_num, int, chip_rev_num, int, client_pl)
 189 HV_WRAP1(long, hv_sysconf, HV_SysconfQuery, query)
 190 HV_WRAP3(int, hv_confstr, HV_ConfstrQuery, query, HV_VirtAddr, buf, int, len)
 191 #if CHIP_HAS_IPI()
 192 HV_WRAP3(int, hv_get_ipi_pte, HV_Coord, tile, int, pl, HV_PTE*, pte)
 193 HV_WRAP3(int, hv_console_set_ipi, int, ipi, int, event, HV_Coord, coord);
 194 #else
 195 HV_WRAP1(void, hv_enable_intr, HV_IntrMask, enab_mask)
 196 HV_WRAP1(void, hv_disable_intr, HV_IntrMask, disab_mask)
 197 HV_WRAP1(void, hv_clear_intr, HV_IntrMask, clear_mask)
 198 HV_WRAP1(void, hv_raise_intr, HV_IntrMask, raise_mask)
 199 HV_WRAP2(HV_Errno, hv_trigger_ipi, HV_Coord, tile, int, interrupt)
 200 #endif /* !CHIP_HAS_IPI() */
 201 HV_WRAP3(int, hv_store_mapping, HV_VirtAddr, va, unsigned int, len,
 202          HV_PhysAddr, pa)
 203 HV_WRAP2(HV_PhysAddr, hv_inquire_realpa, HV_PhysAddr, cpa, unsigned int, len)
 204 HV_WRAP0(HV_RTCTime, hv_get_rtc)
 205 HV_WRAP1(void, hv_set_rtc, HV_RTCTime, time)
 206 HV_WRAP4(int, hv_install_context, HV_PhysAddr, page_table, HV_PTE, access,
 207          HV_ASID, asid, __hv32, flags)
 208 HV_WRAP2(int, hv_set_pte_super_shift, int, level, int, log2_count)
 209 HV_WRAP0(HV_Context, hv_inquire_context)
 210 HV_WRAP1(int, hv_flush_asid, HV_ASID, asid)
 211 HV_WRAP2(int, hv_flush_page, HV_VirtAddr, address, HV_PageSize, page_size)
 212 HV_WRAP3(int, hv_flush_pages, HV_VirtAddr, start, HV_PageSize, page_size,
 213          unsigned long, size)
 214 HV_WRAP1(int, hv_flush_all, int, preserve_global)
 215 HV_WRAP2(void, hv_restart, HV_VirtAddr, cmd, HV_VirtAddr, args)
 216 HV_WRAP0(void, hv_halt)
 217 HV_WRAP0(void, hv_power_off)
 218 HV_WRAP1(int, hv_reexec, HV_PhysAddr, entry)
 219 HV_WRAP0(HV_Topology, hv_inquire_topology)
 220 HV_WRAP3(HV_Errno, hv_inquire_tiles, HV_InqTileSet, set, HV_VirtAddr, cpumask,
 221          int, length)
 222 HV_WRAP1(HV_PhysAddrRange, hv_inquire_physical, int, idx)
 223 HV_WRAP2(HV_MemoryControllerInfo, hv_inquire_memory_controller, HV_Coord, coord,
 224          int, controller)
 225 HV_WRAP1(HV_VirtAddrRange, hv_inquire_virtual, int, idx)
 226 HV_WRAP1(HV_ASIDRange, hv_inquire_asid, int, idx)
 227 HV_WRAP1(void, hv_nanosleep, int, nanosecs)
 228 HV_WRAP0(int, hv_console_read_if_ready)
 229 HV_WRAP1(void, hv_console_putc, int, byte)
 230 HV_WRAP2(int, hv_console_write, HV_VirtAddr, bytes, int, len)
 231 HV_WRAP0(void, hv_downcall_dispatch)
 232 HV_WRAP1(int, hv_fs_findfile, HV_VirtAddr, filename)
 233 HV_WRAP1(HV_FS_StatInfo, hv_fs_fstat, int, inode)
 234 HV_WRAP4(int, hv_fs_pread, int, inode, HV_VirtAddr, buf,
 235          int, length, int, offset)
 236 HV_WRAP2(unsigned long long, hv_physaddr_read64, HV_PhysAddr, addr,
 237          HV_PTE, access)
 238 HV_WRAP3(void, hv_physaddr_write64, HV_PhysAddr, addr, HV_PTE, access,
 239          unsigned long long, val)
 240 HV_WRAP2(int, hv_get_command_line, HV_VirtAddr, buf, int, length)
 241 HV_WRAP2(HV_Errno, hv_set_command_line, HV_VirtAddr, buf, int, length)
 242 HV_WRAP1(void, hv_set_caching, unsigned long, bitmask)
 243 HV_WRAP2(void, hv_bzero_page, HV_VirtAddr, va, unsigned int, size)
 244 HV_WRAP1(HV_Errno, hv_register_message_state, HV_MsgState*, msgstate)
 245 HV_WRAP4(int, hv_send_message, HV_Recipient *, recips, int, nrecip,
 246          HV_VirtAddr, buf, int, buflen)
 247 HV_WRAP3(HV_RcvMsgInfo, hv_receive_message, HV_MsgState, msgstate,
 248          HV_VirtAddr, buf, int, buflen)
 249 HV_WRAP0(void, hv_start_all_tiles)
 250 HV_WRAP2(int, hv_dev_open, HV_VirtAddr, name, __hv32, flags)
 251 HV_WRAP1(int, hv_dev_close, int, devhdl)
 252 HV_WRAP5(int, hv_dev_pread, int, devhdl, __hv32, flags, HV_VirtAddr, va,
 253          __hv32, len, __hv64, offset)
 254 HV_WRAP5(int, hv_dev_pwrite, int, devhdl, __hv32, flags, HV_VirtAddr, va,
 255          __hv32, len, __hv64, offset)
 256 HV_WRAP3(int, hv_dev_poll, int, devhdl, __hv32, events, HV_IntArg, intarg)
 257 HV_WRAP1(int, hv_dev_poll_cancel, int, devhdl)
 258 HV_WRAP6(int, hv_dev_preada, int, devhdl, __hv32, flags, __hv32, sgl_len,
 259          HV_SGL *, sglp, __hv64, offset, HV_IntArg, intarg)
 260 HV_WRAP6(int, hv_dev_pwritea, int, devhdl, __hv32, flags, __hv32, sgl_len,
 261          HV_SGL *, sglp, __hv64, offset, HV_IntArg, intarg)
 262 HV_WRAP9(int, hv_flush_remote, HV_PhysAddr, cache_pa,
 263          unsigned long, cache_control, unsigned long*, cache_cpumask,
 264          HV_VirtAddr, tlb_va, unsigned long, tlb_length,
 265          unsigned long, tlb_pgsize, unsigned long*, tlb_cpumask,
 266          HV_Remote_ASID*, asids, int, asidcount)