1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/* $OpenBSD: apic.c,v 1.3 2009/08/22 02:54:50 mk Exp $ */
/*
* Copyright (c) 2005 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#define APIC_DEBUG
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <hppa64/dev/elroyreg.h>
#include <hppa64/dev/elroyvar.h>
void
apic_write(volatile struct elroy_regs *r, u_int32_t reg, u_int32_t val)
{
elroy_write32(&r->apic_addr, htole32(reg));
elroy_write32(&r->apic_data, htole32(val));
}
u_int32_t
apic_read(volatile struct elroy_regs *r, u_int32_t reg)
{
elroy_write32(&r->apic_addr, htole32(reg));
return letoh32(elroy_read32(&r->apic_data));
}
void
apic_attach(struct elroy_softc *sc)
{
volatile struct elroy_regs *r = sc->sc_regs;
u_int32_t data;
data = apic_read(r, APIC_VERSION);
sc->sc_nints = (data & APIC_VERSION_NENT) >> APIC_VERSION_NENT_SHIFT;
printf(" APIC ver %x, %d pins",
data & APIC_VERSION_MASK, sc->sc_nints);
}
int
apic_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
{
pci_chipset_tag_t pc = pa->pa_pc;
struct elroy_softc *sc = pc->_cookie;
pcitag_t tag = pa->pa_tag;
hppa_hpa_t hpa = cpu_gethpa(0);
pcireg_t reg;
reg = pci_conf_read(pc, tag, PCI_INTERRUPT_REG);
printf(" pin=%d line=%d ", PCI_INTERRUPT_PIN(reg), PCI_INTERRUPT_LINE(reg));
apic_write(sc->sc_regs, APIC_ENT0(PCI_INTERRUPT_PIN(reg)),
PCI_INTERRUPT_LINE(reg));
apic_write(sc->sc_regs, APIC_ENT1(PCI_INTERRUPT_PIN(reg)),
((hpa & 0x0ff00000) >> 4) | ((hpa & 0x000ff000) << 12));
*ihp = PCI_INTERRUPT_LINE(reg) + 1;
return (*ihp == 0);
}
const char *
apic_intr_string(void *v, pci_intr_handle_t ih)
{
static char buf[32];
snprintf(buf, 32, "irq %ld", ih);
return (buf);
}
void *
apic_intr_establish(void *v, pci_intr_handle_t ih,
int pri, int (*handler)(void *), void *arg, const char *name)
{
/* struct elroy_softc *sc = v; */
/* volatile struct elroy_regs *r = sc->sc_regs; */
/* void *iv = NULL; */
/* no mapping or bogus */
if (ih <= 0 || ih > 63)
return (NULL);
#if 0
TODO
if ((iv = cpu_intr_map(sc->sc_ih, pri, ih - 1, handler, arg, name))) {
if (cold)
sc->sc_imr |= (1 << (ih - 1));
else
/* r->imr = sc->sc_imr |= (1 << (ih - 1)) */;
}
#endif
return (arg);
}
void
apic_intr_disestablish(void *v, void *cookie)
{
#if 0
struct elroy_softc *sc = v;
volatile struct elroy_regs *r = sc->sc_regs;
r->imr &= ~(1 << (ih - 1));
TODO cpu_intr_unmap(sc->sc_ih, cookie);
#endif
}
int
apic_intr(void *v)
{
return (0);
}
|
