[linux-2.6-block.git] / arch / powerpc / platforms / pseries / plpar_wrappers.h

#ifndef _PSERIES_PLPAR_WRAPPERS_H
#define _PSERIES_PLPAR_WRAPPERS_H

#include <asm/hvcall.h>

static inline long poll_pending(void)
{
	return plpar_hcall_norets(H_POLL_PENDING);
}

static inline long prod_processor(void)
{
	return plpar_hcall_norets(H_PROD);
}

static inline long cede_processor(void)
{
	return plpar_hcall_norets(H_CEDE);
}

static inline long vpa_call(unsigned long flags, unsigned long cpu,
		unsigned long vpa)
{
	/* flags are in bits 16-18 (counting from most significant bit) */
	flags = flags << (63 - 18);

	return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa);
}

static inline long unregister_vpa(unsigned long cpu, unsigned long vpa)
{
	return vpa_call(0x5, cpu, vpa);
}

static inline long register_vpa(unsigned long cpu, unsigned long vpa)
{
	return vpa_call(0x1, cpu, vpa);
}

static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa)
{
	return vpa_call(0x7, cpu, vpa);
}

static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
{
	return vpa_call(0x3, cpu, vpa);
}

extern void vpa_init(int cpu);

static inline long plpar_pte_enter(unsigned long flags,
		unsigned long hpte_group, unsigned long hpte_v,
		unsigned long hpte_r, unsigned long *slot)
{
	long rc;
	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];

	rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r);

	*slot = retbuf[0];

	return rc;
}

static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex,
		unsigned long avpn, unsigned long *old_pteh_ret,
		unsigned long *old_ptel_ret)
{
	long rc;
	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];

	rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn);

	*old_pteh_ret = retbuf[0];
	*old_ptel_ret = retbuf[1];

	return rc;
}

static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
		unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
{
	long rc;
	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];

	rc = plpar_hcall(H_READ, retbuf, flags, ptex);

	*old_pteh_ret = retbuf[0];
	*old_ptel_ret = retbuf[1];

	return rc;
}

static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
		unsigned long avpn)
{
	return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn);
}

static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
		unsigned long *tce_ret)
{
	long rc;
	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];

	rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba);

	*tce_ret = retbuf[0];

	return rc;
}

static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba,
		unsigned long tceval)
{
	return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval);
}

static inline long plpar_tce_put_indirect(unsigned long liobn,
		unsigned long ioba, unsigned long page, unsigned long count)
{
	return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count);
}

static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba,
		unsigned long tceval, unsigned long count)
{
	return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count);
}

static inline long plpar_get_term_char(unsigned long termno,
		unsigned long *len_ret, char *buf_ret)
{
	long rc;
	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
	unsigned long *lbuf = (unsigned long *)buf_ret;	/* TODO: alignment? */

	rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno);

	*len_ret = retbuf[0];
	lbuf[0] = retbuf[1];
	lbuf[1] = retbuf[2];

	return rc;
}

static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
		const char *buffer)
{
	unsigned long *lbuf = (unsigned long *)buffer;	/* TODO: alignment? */
	return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0],
			lbuf[1]);
}

static inline long plpar_eoi(unsigned long xirr)
{
	return plpar_hcall_norets(H_EOI, xirr);
}

static inline long plpar_cppr(unsigned long cppr)
{
	return plpar_hcall_norets(H_CPPR, cppr);
}

static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
{
	return plpar_hcall_norets(H_IPI, servernum, mfrr);
}

static inline long plpar_xirr(unsigned long *xirr_ret)
{
	long rc;
	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];

	rc = plpar_hcall(H_XIRR, retbuf);

	*xirr_ret = retbuf[0];

	return rc;
}

#endif /* _PSERIES_PLPAR_WRAPPERS_H */
Commit	Line	Data
a1218720 ME	1	#ifndef _PSERIES_PLPAR_WRAPPERS_H
	2	#define _PSERIES_PLPAR_WRAPPERS_H
	3
	4	#include <asm/hvcall.h>
	5
	6	static inline long poll_pending(void)
	7	{
b9377ffc	8	return plpar_hcall_norets(H_POLL_PENDING);
a1218720 ME	9	}
	10
	11	static inline long prod_processor(void)
	12	{
b9377ffc	13	return plpar_hcall_norets(H_PROD);
a1218720 ME	14	}
	15
	16	static inline long cede_processor(void)
	17	{
b9377ffc	18	return plpar_hcall_norets(H_CEDE);
a1218720 ME	19	}
a1218720 ME	20
40765d2b	21	static inline long vpa_call(unsigned long flags, unsigned long cpu,
a1218720 ME	22	unsigned long vpa)
a1218720 ME	23	{
40765d2b ME	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
	30	static inline long unregister_vpa(unsigned long cpu, unsigned long vpa)
	31	{
	32	return vpa_call(0x5, cpu, vpa);
	33	}
	34
	35	static inline long register_vpa(unsigned long cpu, unsigned long vpa)
	36	{
	37	return vpa_call(0x1, cpu, vpa);
a1218720 ME	38	}
a1218720 ME	39
2f6093c8 MN	40	static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa)
	41	{
	42	return vpa_call(0x7, cpu, vpa);
	43	}
	44
	45	static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
	46	{
	47	return vpa_call(0x3, cpu, vpa);
	48	}
	49
40765d2b	50	extern void vpa_init(int cpu);
a1218720	51
b9377ffc AB	52	static 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
a1218720 ME	66	static 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	{
b9377ffc AB	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;
a1218720 ME	79	}
	80
	81	static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
	82	unsigned long old_pteh_ret, unsigned long old_ptel_ret)
	83	{
b9377ffc AB	84	long rc;
	85	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
	86
	87	rc = plpar_hcall(H_READ, retbuf, flags, ptex);
	88
	89	*old_pteh_ret = retbuf[0];
	90	*old_ptel_ret = retbuf[1];
	91
	92	return rc;
a1218720 ME	93	}
	94
	95	static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
	96	unsigned long avpn)
	97	{
	98	return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn);
	99	}
	100
	101	static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
	102	unsigned long *tce_ret)
	103	{
b9377ffc AB	104	long rc;
	105	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
	106
	107	rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba);
	108
	109	*tce_ret = retbuf[0];
	110
	111	return rc;
a1218720 ME	112	}
	113
	114	static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba,
	115	unsigned long tceval)
	116	{
	117	return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval);
	118	}
	119
	120	static inline long plpar_tce_put_indirect(unsigned long liobn,
	121	unsigned long ioba, unsigned long page, unsigned long count)
	122	{
	123	return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count);
	124	}
	125
	126	static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba,
	127	unsigned long tceval, unsigned long count)
	128	{
	129	return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count);
	130	}
	131
	132	static inline long plpar_get_term_char(unsigned long termno,
	133	unsigned long len_ret, char buf_ret)
	134	{
b9377ffc AB	135	long rc;
b9377ffc AB	136	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
a1218720	137	unsigned long lbuf = (unsigned long )buf_ret; /* TODO: alignment? */
b9377ffc AB	138
	139	rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno);
	140
	141	*len_ret = retbuf[0];
	142	lbuf[0] = retbuf[1];
	143	lbuf[1] = retbuf[2];
	144
	145	return rc;
a1218720 ME	146	}
	147
	148	static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
	149	const char *buffer)
	150	{
	151	unsigned long lbuf = (unsigned long )buffer; /* TODO: alignment? */
	152	return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0],
	153	lbuf[1]);
	154	}
	155
b9377ffc AB	156	static inline long plpar_eoi(unsigned long xirr)
	157	{
	158	return plpar_hcall_norets(H_EOI, xirr);
	159	}
	160
	161	static inline long plpar_cppr(unsigned long cppr)
	162	{
	163	return plpar_hcall_norets(H_CPPR, cppr);
	164	}
	165
	166	static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
	167	{
	168	return plpar_hcall_norets(H_IPI, servernum, mfrr);
	169	}
	170
	171	static inline long plpar_xirr(unsigned long *xirr_ret)
	172	{
	173	long rc;
	174	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
	175
	176	rc = plpar_hcall(H_XIRR, retbuf);
	177
	178	*xirr_ret = retbuf[0];
	179
	180	return rc;
	181	}
	182
a1218720	183	#endif /* _PSERIES_PLPAR_WRAPPERS_H */