1 | /* |
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2 | * ePAPR hcall interface |
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3 | * |
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4 | * Copyright 2008-2011 Freescale Semiconductor, Inc. |
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5 | * |
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6 | * Author: Timur Tabi <timur@freescale.com> |
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7 | * |
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8 | * This file is provided under a dual BSD/GPL license. When using or |
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9 | * redistributing this file, you may do so under either license. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions are met: |
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13 | * * Redistributions of source code must retain the above copyright |
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14 | * notice, this list of conditions and the following disclaimer. |
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15 | * * Redistributions in binary form must reproduce the above copyright |
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16 | * notice, this list of conditions and the following disclaimer in the |
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17 | * documentation and/or other materials provided with the distribution. |
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18 | * * Neither the name of Freescale Semiconductor nor the |
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19 | * names of its contributors may be used to endorse or promote products |
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20 | * derived from this software without specific prior written permission. |
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21 | * |
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22 | * |
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23 | * ALTERNATIVELY, this software may be distributed under the terms of the |
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24 | * GNU General Public License ("GPL") as published by the Free Software |
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25 | * Foundation, either version 2 of that License or (at your option) any |
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26 | * later version. |
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27 | * |
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28 | * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY |
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29 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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30 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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31 | * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY |
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32 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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33 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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34 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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35 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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36 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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37 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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38 | */ |
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39 | |
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40 | #ifndef _UAPI_ASM_POWERPC_EPAPR_HCALLS_H |
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41 | #define _UAPI_ASM_POWERPC_EPAPR_HCALLS_H |
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42 | |
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43 | #define EV_BYTE_CHANNEL_SEND 1 |
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44 | #define EV_BYTE_CHANNEL_RECEIVE 2 |
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45 | #define EV_BYTE_CHANNEL_POLL 3 |
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46 | #define EV_INT_SET_CONFIG 4 |
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47 | #define EV_INT_GET_CONFIG 5 |
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48 | #define EV_INT_SET_MASK 6 |
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49 | #define EV_INT_GET_MASK 7 |
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50 | #define EV_INT_IACK 9 |
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51 | #define EV_INT_EOI 10 |
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52 | #define EV_INT_SEND_IPI 11 |
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53 | #define EV_INT_SET_TASK_PRIORITY 12 |
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54 | #define EV_INT_GET_TASK_PRIORITY 13 |
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55 | #define EV_DOORBELL_SEND 14 |
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56 | #define EV_MSGSND 15 |
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57 | #define EV_IDLE 16 |
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58 | |
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59 | /* vendor ID: epapr */ |
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60 | #define EV_LOCAL_VENDOR_ID 0 /* for private use */ |
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61 | #define EV_EPAPR_VENDOR_ID 1 |
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62 | #define EV_FSL_VENDOR_ID 2 /* Freescale Semiconductor */ |
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63 | #define EV_IBM_VENDOR_ID 3 /* IBM */ |
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64 | #define EV_GHS_VENDOR_ID 4 /* Green Hills Software */ |
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65 | #define EV_ENEA_VENDOR_ID 5 /* Enea */ |
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66 | #define EV_WR_VENDOR_ID 6 /* Wind River Systems */ |
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67 | #define EV_AMCC_VENDOR_ID 7 /* Applied Micro Circuits */ |
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68 | #define EV_KVM_VENDOR_ID 42 /* KVM */ |
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69 | |
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70 | /* The max number of bytes that a byte channel can send or receive per call */ |
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71 | #define EV_BYTE_CHANNEL_MAX_BYTES 16 |
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72 | |
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73 | |
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74 | #define _EV_HCALL_TOKEN(id, num) (((id) << 16) | (num)) |
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75 | #define EV_HCALL_TOKEN(hcall_num) _EV_HCALL_TOKEN(EV_EPAPR_VENDOR_ID, hcall_num) |
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76 | |
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77 | /* epapr return codes */ |
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78 | #define EV_SUCCESS 0 |
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79 | #define EV_EPERM 1 /* Operation not permitted */ |
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80 | #define EV_ENOENT 2 /* Entry Not Found */ |
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81 | #define EV_EIO 3 /* I/O error occurred */ |
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82 | #define EV_EAGAIN 4 /* The operation had insufficient |
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83 | * resources to complete and should be |
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84 | * retried |
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85 | */ |
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86 | #define EV_ENOMEM 5 /* There was insufficient memory to |
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87 | * complete the operation */ |
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88 | #define EV_EFAULT 6 /* Bad guest address */ |
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89 | #define EV_ENODEV 7 /* No such device */ |
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90 | #define EV_EINVAL 8 /* An argument supplied to the hcall |
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91 | was out of range or invalid */ |
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92 | #define EV_INTERNAL 9 /* An internal error occurred */ |
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93 | #define EV_CONFIG 10 /* A configuration error was detected */ |
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94 | #define EV_INVALID_STATE 11 /* The object is in an invalid state */ |
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95 | #define EV_UNIMPLEMENTED 12 /* Unimplemented hypercall */ |
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96 | #define EV_BUFFER_OVERFLOW 13 /* Caller-supplied buffer too small */ |
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97 | |
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98 | #endif /* _UAPI_ASM_POWERPC_EPAPR_HCALLS_H */ |
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