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   1 /*
   2  * Copyright (C) 2001  Mike Corrigan IBM Corporation
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  17  */
  18 #ifndef _PLATFORMS_ISERIES_CALL_HPT_H
  19 #define _PLATFORMS_ISERIES_CALL_HPT_H
  20
  21 /*
  22  * This file contains the "hypervisor call" interface which is used to
  23  * drive the hypervisor from the OS.
  24  */
  25
  26 #include <asm/iseries/hv_call_sc.h>
  27 #include <asm/iseries/hv_types.h>
  28 #include <asm/mmu.h>
  29
  30 #define HvCallHptGetHptAddress          HvCallHpt +  0
  31 #define HvCallHptGetHptPages            HvCallHpt +  1
  32 #define HvCallHptSetPp                  HvCallHpt +  5
  33 #define HvCallHptSetSwBits              HvCallHpt +  6
  34 #define HvCallHptUpdate                 HvCallHpt +  7
  35 #define HvCallHptInvalidateNoSyncICache HvCallHpt +  8
  36 #define HvCallHptGet                    HvCallHpt + 11
  37 #define HvCallHptFindNextValid          HvCallHpt + 12
  38 #define HvCallHptFindValid              HvCallHpt + 13
  39 #define HvCallHptAddValidate            HvCallHpt + 16
  40 #define HvCallHptInvalidateSetSwBitsGet HvCallHpt + 18
  41
  42
  43 static inline u64 HvCallHpt_getHptAddress(void)
  44 {
  45         return HvCall0(HvCallHptGetHptAddress);
  46 }
  47
  48 static inline u64 HvCallHpt_getHptPages(void)
  49 {
  50         return HvCall0(HvCallHptGetHptPages);
  51 }
  52
  53 static inline void HvCallHpt_setPp(u32 hpteIndex, u8 value)
  54 {
  55         HvCall2(HvCallHptSetPp, hpteIndex, value);
  56 }
  57
  58 static inline void HvCallHpt_setSwBits(u32 hpteIndex, u8 bitson, u8 bitsoff)
  59 {
  60         HvCall3(HvCallHptSetSwBits, hpteIndex, bitson, bitsoff);
  61 }
  62
  63 static inline void HvCallHpt_invalidateNoSyncICache(u32 hpteIndex)
  64 {
  65         HvCall1(HvCallHptInvalidateNoSyncICache, hpteIndex);
  66 }
  67
  68 static inline u64 HvCallHpt_invalidateSetSwBitsGet(u32 hpteIndex, u8 bitson,
  69                 u8 bitsoff)
  70 {
  71         u64 compressedStatus;
  72
  73         compressedStatus = HvCall4(HvCallHptInvalidateSetSwBitsGet,
  74                         hpteIndex, bitson, bitsoff, 1);
  75         HvCall1(HvCallHptInvalidateNoSyncICache, hpteIndex);
  76         return compressedStatus;
  77 }
  78
  79 static inline u64 HvCallHpt_findValid(struct hash_pte *hpte, u64 vpn)
  80 {
  81         return HvCall3Ret16(HvCallHptFindValid, hpte, vpn, 0, 0);
  82 }
  83
  84 static inline u64 HvCallHpt_findNextValid(struct hash_pte *hpte, u32 hpteIndex,
  85                 u8 bitson, u8 bitsoff)
  86 {
  87         return HvCall3Ret16(HvCallHptFindNextValid, hpte, hpteIndex,
  88                         bitson, bitsoff);
  89 }
  90
  91 static inline void HvCallHpt_get(struct hash_pte *hpte, u32 hpteIndex)
  92 {
  93         HvCall2Ret16(HvCallHptGet, hpte, hpteIndex, 0);
  94 }
  95
  96 static inline void HvCallHpt_addValidate(u32 hpteIndex, u32 hBit,
  97                                          struct hash_pte *hpte)
  98 {
  99         HvCall4(HvCallHptAddValidate, hpteIndex, hBit, hpte->v, hpte->r);
 100 }
 101
 102 #endif /* _PLATFORMS_ISERIES_CALL_HPT_H */