25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: memory_alpha.c,v 1.3 2006/06/24 21:47:23 debug Exp $ |
* $Id: memory_alpha.c,v 1.7 2006/10/08 02:28:58 debug Exp $ |
29 |
*/ |
*/ |
30 |
|
|
31 |
#include <stdio.h> |
#include <stdio.h> |
37 |
#include "memory.h" |
#include "memory.h" |
38 |
#include "misc.h" |
#include "misc.h" |
39 |
|
|
40 |
|
#include "alpha_rpb.h" |
41 |
|
|
42 |
|
|
43 |
/* |
/* |
44 |
* alpha_translate_v2p(): |
* alpha_translate_v2p(): |
46 |
int alpha_translate_v2p(struct cpu *cpu, uint64_t vaddr, |
int alpha_translate_v2p(struct cpu *cpu, uint64_t vaddr, |
47 |
uint64_t *return_paddr, int flags) |
uint64_t *return_paddr, int flags) |
48 |
{ |
{ |
49 |
*return_paddr = vaddr & 0x000003ffffffffffULL; |
uint64_t base = cpu->cd.alpha.pcb.apcb_ptbr << ALPHA_PAGESHIFT; |
50 |
|
uint64_t addr, pte1, pte2, pte3; |
51 |
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int i1, i2, i3; |
52 |
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unsigned char *pt_entry_ptr; |
53 |
|
|
54 |
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/* Kernel direct-mapped space: */ |
55 |
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if ((vaddr & ~0x1ffffffffffULL) == 0xfffffc0000000000ULL) { |
56 |
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*return_paddr = vaddr & 0x000003ffffffffffULL; |
57 |
|
return 2; |
58 |
|
} |
59 |
|
|
60 |
|
i1 = (vaddr >> 33) & 0x3ff; |
61 |
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i2 = (vaddr >> 23) & 0x3ff; |
62 |
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i3 = (vaddr >> 13) & 0x3ff; |
63 |
|
|
64 |
|
debug("base = 0x%016"PRIx64"\n", base); |
65 |
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debug("i1=0x%x i2=0x%x i3=0x%x\n", i1, i2, i3); |
66 |
|
|
67 |
|
addr = base + i1 * sizeof(uint64_t); |
68 |
|
|
69 |
|
pt_entry_ptr = memory_paddr_to_hostaddr(cpu->mem, addr, 0); |
70 |
|
if (pt_entry_ptr == NULL) |
71 |
|
goto not_found; |
72 |
|
|
73 |
|
pte1 = *(uint64_t *)(pt_entry_ptr); |
74 |
|
pte1 = LE64_TO_HOST(pte1); |
75 |
|
|
76 |
|
debug("pte1 = 0x%016"PRIx64"\n", pte1); |
77 |
|
|
78 |
|
addr = ((pte1 >> 32) << ALPHA_PAGESHIFT) + (i2 * sizeof(uint64_t)); |
79 |
|
|
80 |
|
pt_entry_ptr = memory_paddr_to_hostaddr(cpu->mem, addr, 0); |
81 |
|
if (pt_entry_ptr == NULL) |
82 |
|
goto not_found; |
83 |
|
|
84 |
|
pte2 = *(uint64_t *)(pt_entry_ptr); |
85 |
|
pte2 = LE64_TO_HOST(pte2); |
86 |
|
|
87 |
|
debug("pte2 = 0x%016"PRIx64"\n", pte2); |
88 |
|
|
89 |
|
addr = ((pte2 >> 32) << ALPHA_PAGESHIFT) + (i3 * sizeof(uint64_t)); |
90 |
|
|
91 |
|
pt_entry_ptr = memory_paddr_to_hostaddr(cpu->mem, addr, 0); |
92 |
|
if (pt_entry_ptr == NULL) |
93 |
|
goto not_found; |
94 |
|
|
95 |
|
pte3 = *(uint64_t *)(pt_entry_ptr); |
96 |
|
pte3 = LE64_TO_HOST(pte3); |
97 |
|
|
98 |
|
debug("pte3 = 0x%016"PRIx64"\n", pte3); |
99 |
|
|
100 |
|
not_found: |
101 |
|
/* No match. */ |
102 |
|
debug("[ alpha_translate_v2p: 0x%016"PRIx64" wasn't found ]\n", vaddr); |
103 |
|
|
104 |
|
#if 1 |
105 |
/* UGLY hack for now: */ |
/* UGLY hack for now: */ |
106 |
/* TODO: Real virtual memory support. */ |
/* TODO: Real virtual memory support. */ |
107 |
|
*return_paddr = vaddr & 0x000003ffffffffffULL; |
108 |
|
|
109 |
|
if ((vaddr & ~0x7fff) == 0x0000000010000000ULL) |
110 |
|
*return_paddr = (vaddr & 0x7fff) + HWRPB_PADDR; |
111 |
|
|
112 |
if ((vaddr & ~0xffff) == 0xfffffc0010000000ULL || |
if ((vaddr & ~0xffffff) == 0xfffffe0000000000ULL) |
113 |
(vaddr & ~0xffff) == 0x0000000010000000ULL) |
*return_paddr = 0x7efa000 + (vaddr & 0xffffff); |
|
*return_paddr = (vaddr & 0x0fffffff) + |
|
|
(cpu->machine->physical_ram_in_mb-1) * 1048576; |
|
|
|
|
|
/* At 0x20000000, NetBSD stores temp prom data */ |
|
|
if ((vaddr & ~0x1fff) == 0xfffffc0020000000ULL || |
|
|
(vaddr & ~0x1fff) == 0x0000000020000000ULL) |
|
|
*return_paddr = (vaddr & 0x0fffffff) + 512*1024 + |
|
|
(cpu->machine->physical_ram_in_mb-1) * 1048576; |
|
114 |
|
|
115 |
/* printf("yo %016"PRIx64" %016"PRIx64"\n", vaddr, *return_paddr); */ |
/* At 0x20000000, NetBSD stores 8KB temp prom data */ |
116 |
|
if ((vaddr & ~0x1fff) == 0x0000000020000000ULL) |
117 |
|
*return_paddr = (vaddr & 0x1fff) + PROM_ARGSPACE_PADDR; |
118 |
|
|
119 |
return 2; |
return 2; |
120 |
|
#else |
121 |
|
return 0; |
122 |
|
#endif |
123 |
} |
} |
124 |
|
|