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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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76032de898
Define ppc_md.set_dabr for both 32 + 64 bit. Cleanup the implementation for pSeries also, it was needlessly complex. Now we just do two firmware tests at setup time, and use one of two functions, rather than using one function and testing on every call. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
#ifndef _PSERIES_PLPAR_WRAPPERS_H
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#define _PSERIES_PLPAR_WRAPPERS_H
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#include <asm/hvcall.h>
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static inline long poll_pending(void)
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{
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unsigned long dummy;
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return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, &dummy, &dummy, &dummy);
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}
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static inline long prod_processor(void)
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{
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plpar_hcall_norets(H_PROD);
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return 0;
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}
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static inline long cede_processor(void)
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{
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plpar_hcall_norets(H_CEDE);
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return 0;
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}
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static inline long vpa_call(unsigned long flags, unsigned long cpu,
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unsigned long vpa)
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{
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/* flags are in bits 16-18 (counting from most significant bit) */
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flags = flags << (63 - 18);
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return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa);
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}
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static inline long unregister_vpa(unsigned long cpu, unsigned long vpa)
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{
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return vpa_call(0x5, cpu, vpa);
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}
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static inline long register_vpa(unsigned long cpu, unsigned long vpa)
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{
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return vpa_call(0x1, cpu, vpa);
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}
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extern void vpa_init(int cpu);
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static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex,
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unsigned long avpn, unsigned long *old_pteh_ret,
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unsigned long *old_ptel_ret)
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{
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unsigned long dummy;
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return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, old_pteh_ret,
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old_ptel_ret, &dummy);
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}
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static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
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unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
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{
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unsigned long dummy;
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return plpar_hcall(H_READ, flags, ptex, 0, 0, old_pteh_ret,
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old_ptel_ret, &dummy);
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}
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static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
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unsigned long avpn)
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{
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return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn);
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}
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static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
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unsigned long *tce_ret)
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{
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unsigned long dummy;
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return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, tce_ret, &dummy,
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&dummy);
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}
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static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba,
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unsigned long tceval)
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{
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return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval);
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}
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static inline long plpar_tce_put_indirect(unsigned long liobn,
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unsigned long ioba, unsigned long page, unsigned long count)
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{
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return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count);
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}
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static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba,
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unsigned long tceval, unsigned long count)
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{
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return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count);
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}
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static inline long plpar_get_term_char(unsigned long termno,
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unsigned long *len_ret, char *buf_ret)
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{
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unsigned long *lbuf = (unsigned long *)buf_ret; /* TODO: alignment? */
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return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, len_ret,
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lbuf + 0, lbuf + 1);
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}
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static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
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const char *buffer)
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{
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unsigned long *lbuf = (unsigned long *)buffer; /* TODO: alignment? */
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return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0],
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lbuf[1]);
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}
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#endif /* _PSERIES_PLPAR_WRAPPERS_H */
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