1#ifndef _PSERIES_PLPAR_WRAPPERS_H 2#define _PSERIES_PLPAR_WRAPPERS_H 3 4#include <asm/hvcall.h> 5 6static inline long poll_pending(void) 7{ 8 return plpar_hcall_norets(H_POLL_PENDING); 9} 10 11static inline long prod_processor(void) 12{ 13 return plpar_hcall_norets(H_PROD); 14} 15 16static inline long cede_processor(void) 17{ 18 return plpar_hcall_norets(H_CEDE); 19} 20 21static inline long vpa_call(unsigned long flags, unsigned long cpu, 22 unsigned long vpa) 23{ 24 /* flags are in bits 16-18 (counting from most significant bit) */ 25 flags = flags << (63 - 18); 26 27 return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa); 28} 29 30static inline long unregister_vpa(unsigned long cpu, unsigned long vpa) 31{ 32 return vpa_call(0x5, cpu, vpa); 33} 34 35static inline long register_vpa(unsigned long cpu, unsigned long vpa) 36{ 37 return vpa_call(0x1, cpu, vpa); 38} 39 40static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa) 41{ 42 return vpa_call(0x7, cpu, vpa); 43} 44 45static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa) 46{ 47 return vpa_call(0x3, cpu, vpa); 48} 49 50extern void vpa_init(int cpu); 51 52static inline long plpar_pte_enter(unsigned long flags, 53 unsigned long hpte_group, unsigned long hpte_v, 54 unsigned long hpte_r, unsigned long *slot) 55{ 56 long rc; 57 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 58 59 rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r); 60 61 *slot = retbuf[0]; 62 63 return rc; 64} 65 66static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex, 67 unsigned long avpn, unsigned long *old_pteh_ret, 68 unsigned long *old_ptel_ret) 69{ 70 long rc; 71 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 72 73 rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn); 74 75 *old_pteh_ret = retbuf[0]; 76 *old_ptel_ret = retbuf[1]; 77 78 return rc; 79} 80 81/* plpar_pte_remove_raw can be called in real mode. It calls plpar_hcall_raw */ 82static inline long plpar_pte_remove_raw(unsigned long flags, unsigned long ptex, 83 unsigned long avpn, unsigned long *old_pteh_ret, 84 unsigned long *old_ptel_ret) 85{ 86 long rc; 87 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 88 89 rc = plpar_hcall_raw(H_REMOVE, retbuf, flags, ptex, avpn); 90 91 *old_pteh_ret = retbuf[0]; 92 *old_ptel_ret = retbuf[1]; 93 94 return rc; 95} 96 97static inline long plpar_pte_read(unsigned long flags, unsigned long ptex, 98 unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) 99{ 100 long rc; 101 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 102 103 rc = plpar_hcall(H_READ, retbuf, flags, ptex); 104 105 *old_pteh_ret = retbuf[0]; 106 *old_ptel_ret = retbuf[1]; 107 108 return rc; 109} 110 111static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex, 112 unsigned long avpn) 113{ 114 return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn); 115} 116 117static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba, 118 unsigned long *tce_ret) 119{ 120 long rc; 121 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 122 123 rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba); 124 125 *tce_ret = retbuf[0]; 126 127 return rc; 128} 129 130static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba, 131 unsigned long tceval) 132{ 133 return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval); 134} 135 136static inline long plpar_tce_put_indirect(unsigned long liobn, 137 unsigned long ioba, unsigned long page, unsigned long count) 138{ 139 return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count); 140} 141 142static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba, 143 unsigned long tceval, unsigned long count) 144{ 145 return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count); 146} 147 148static inline long plpar_get_term_char(unsigned long termno, 149 unsigned long *len_ret, char *buf_ret) 150{ 151 long rc; 152 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 153 unsigned long *lbuf = (unsigned long *)buf_ret; /* TODO: alignment? */ 154 155 rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno); 156 157 *len_ret = retbuf[0]; 158 lbuf[0] = retbuf[1]; 159 lbuf[1] = retbuf[2]; 160 161 return rc; 162} 163 164static inline long plpar_put_term_char(unsigned long termno, unsigned long len, 165 const char *buffer) 166{ 167 unsigned long *lbuf = (unsigned long *)buffer; /* TODO: alignment? */ 168 return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0], 169 lbuf[1]); 170} 171 172static inline long plpar_eoi(unsigned long xirr) 173{ 174 return plpar_hcall_norets(H_EOI, xirr); 175} 176 177static inline long plpar_cppr(unsigned long cppr) 178{ 179 return plpar_hcall_norets(H_CPPR, cppr); 180} 181 182static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr) 183{ 184 return plpar_hcall_norets(H_IPI, servernum, mfrr); 185} 186 187static inline long plpar_xirr(unsigned long *xirr_ret) 188{ 189 long rc; 190 unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; 191 192 rc = plpar_hcall(H_XIRR, retbuf); 193 194 *xirr_ret = retbuf[0]; 195 196 return rc; 197} 198 199#endif /* _PSERIES_PLPAR_WRAPPERS_H */ 200