aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sparc64
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc64')
-rw-r--r--arch/sparc64/Kconfig.debug8
-rw-r--r--arch/sparc64/kernel/cpu.c4
-rw-r--r--arch/sparc64/kernel/devices.c22
-rw-r--r--arch/sparc64/kernel/dtlb_backend.S13
-rw-r--r--arch/sparc64/kernel/dtlb_base.S8
-rw-r--r--arch/sparc64/kernel/entry.S180
-rw-r--r--arch/sparc64/kernel/head.S563
-rw-r--r--arch/sparc64/kernel/ktlb.S198
-rw-r--r--arch/sparc64/kernel/pci_schizo.c2
-rw-r--r--arch/sparc64/kernel/ptrace.c14
-rw-r--r--arch/sparc64/kernel/setup.c50
-rw-r--r--arch/sparc64/kernel/smp.c21
-rw-r--r--arch/sparc64/kernel/sys32.S170
-rw-r--r--arch/sparc64/kernel/trampoline.S16
-rw-r--r--arch/sparc64/kernel/traps.c100
-rw-r--r--arch/sparc64/kernel/una_asm.S65
-rw-r--r--arch/sparc64/kernel/unaligned.c53
-rw-r--r--arch/sparc64/kernel/us3_cpufreq.c5
-rw-r--r--arch/sparc64/kernel/vmlinux.lds.S3
-rw-r--r--arch/sparc64/lib/strncpy_from_user.S16
-rw-r--r--arch/sparc64/lib/user_fixup.c63
-rw-r--r--arch/sparc64/mm/Makefile2
-rw-r--r--arch/sparc64/mm/extable.c80
-rw-r--r--arch/sparc64/mm/fault.c69
-rw-r--r--arch/sparc64/mm/init.c905
-rw-r--r--arch/sparc64/mm/ultra.S96
-rw-r--r--arch/sparc64/prom/Makefile4
-rw-r--r--arch/sparc64/prom/console.c2
-rw-r--r--arch/sparc64/prom/devops.c2
-rw-r--r--arch/sparc64/prom/init.c5
-rw-r--r--arch/sparc64/prom/map.S72
-rw-r--r--arch/sparc64/prom/memory.c152
-rw-r--r--arch/sparc64/prom/misc.c34
-rw-r--r--arch/sparc64/prom/p1275.c2
-rw-r--r--arch/sparc64/prom/printf.c2
-rw-r--r--arch/sparc64/prom/tree.c50
36 files changed, 1217 insertions, 1834 deletions
diff --git a/arch/sparc64/Kconfig.debug b/arch/sparc64/Kconfig.debug
index af0e9411b83e..fa06ea04837b 100644
--- a/arch/sparc64/Kconfig.debug
+++ b/arch/sparc64/Kconfig.debug
@@ -33,6 +33,14 @@ config DEBUG_BOOTMEM
33 depends on DEBUG_KERNEL 33 depends on DEBUG_KERNEL
34 bool "Debug BOOTMEM initialization" 34 bool "Debug BOOTMEM initialization"
35 35
36config DEBUG_PAGEALLOC
37 bool "Page alloc debugging"
38 depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
39 help
40 Unmap pages from the kernel linear mapping after free_pages().
41 This results in a large slowdown, but helps to find certain types
42 of memory corruptions.
43
36config MCOUNT 44config MCOUNT
37 bool 45 bool
38 depends on STACK_DEBUG 46 depends on STACK_DEBUG
diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c
index 48756958116b..77ef5df4e5a7 100644
--- a/arch/sparc64/kernel/cpu.c
+++ b/arch/sparc64/kernel/cpu.c
@@ -39,6 +39,8 @@ struct cpu_fp_info linux_sparc_fpu[] = {
39 { 0x3e, 0x15, 0, "UltraSparc III+ integrated FPU"}, 39 { 0x3e, 0x15, 0, "UltraSparc III+ integrated FPU"},
40 { 0x3e, 0x16, 0, "UltraSparc IIIi integrated FPU"}, 40 { 0x3e, 0x16, 0, "UltraSparc IIIi integrated FPU"},
41 { 0x3e, 0x18, 0, "UltraSparc IV integrated FPU"}, 41 { 0x3e, 0x18, 0, "UltraSparc IV integrated FPU"},
42 { 0x3e, 0x19, 0, "UltraSparc IV+ integrated FPU"},
43 { 0x3e, 0x22, 0, "UltraSparc IIIi+ integrated FPU"},
42}; 44};
43 45
44#define NSPARCFPU (sizeof(linux_sparc_fpu)/sizeof(struct cpu_fp_info)) 46#define NSPARCFPU (sizeof(linux_sparc_fpu)/sizeof(struct cpu_fp_info))
@@ -53,6 +55,8 @@ struct cpu_iu_info linux_sparc_chips[] = {
53 { 0x3e, 0x15, "TI UltraSparc III+ (Cheetah+)"}, 55 { 0x3e, 0x15, "TI UltraSparc III+ (Cheetah+)"},
54 { 0x3e, 0x16, "TI UltraSparc IIIi (Jalapeno)"}, 56 { 0x3e, 0x16, "TI UltraSparc IIIi (Jalapeno)"},
55 { 0x3e, 0x18, "TI UltraSparc IV (Jaguar)"}, 57 { 0x3e, 0x18, "TI UltraSparc IV (Jaguar)"},
58 { 0x3e, 0x19, "TI UltraSparc IV+ (Panther)"},
59 { 0x3e, 0x22, "TI UltraSparc IIIi+ (Serrano)"},
56}; 60};
57 61
58#define NSPARCCHIPS (sizeof(linux_sparc_chips)/sizeof(struct cpu_iu_info)) 62#define NSPARCCHIPS (sizeof(linux_sparc_chips)/sizeof(struct cpu_iu_info))
diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c
index d710274e516b..df9a1ca8fd77 100644
--- a/arch/sparc64/kernel/devices.c
+++ b/arch/sparc64/kernel/devices.c
@@ -135,6 +135,28 @@ void __init device_scan(void)
135 cpu_data(0).clock_tick = prom_getintdefault(cpu_node, 135 cpu_data(0).clock_tick = prom_getintdefault(cpu_node,
136 "clock-frequency", 136 "clock-frequency",
137 0); 137 0);
138 cpu_data(0).dcache_size = prom_getintdefault(cpu_node,
139 "dcache-size",
140 16 * 1024);
141 cpu_data(0).dcache_line_size =
142 prom_getintdefault(cpu_node, "dcache-line-size", 32);
143 cpu_data(0).icache_size = prom_getintdefault(cpu_node,
144 "icache-size",
145 16 * 1024);
146 cpu_data(0).icache_line_size =
147 prom_getintdefault(cpu_node, "icache-line-size", 32);
148 cpu_data(0).ecache_size = prom_getintdefault(cpu_node,
149 "ecache-size",
150 4 * 1024 * 1024);
151 cpu_data(0).ecache_line_size =
152 prom_getintdefault(cpu_node, "ecache-line-size", 64);
153 printk("CPU[0]: Caches "
154 "D[sz(%d):line_sz(%d)] "
155 "I[sz(%d):line_sz(%d)] "
156 "E[sz(%d):line_sz(%d)]\n",
157 cpu_data(0).dcache_size, cpu_data(0).dcache_line_size,
158 cpu_data(0).icache_size, cpu_data(0).icache_line_size,
159 cpu_data(0).ecache_size, cpu_data(0).ecache_line_size);
138 } 160 }
139#endif 161#endif
140 162
diff --git a/arch/sparc64/kernel/dtlb_backend.S b/arch/sparc64/kernel/dtlb_backend.S
index 538522848ad4..acc889a7f9c1 100644
--- a/arch/sparc64/kernel/dtlb_backend.S
+++ b/arch/sparc64/kernel/dtlb_backend.S
@@ -9,17 +9,7 @@
9#include <asm/pgtable.h> 9#include <asm/pgtable.h>
10#include <asm/mmu.h> 10#include <asm/mmu.h>
11 11
12#if PAGE_SHIFT == 13 12#define VALID_SZ_BITS (_PAGE_VALID | _PAGE_SZBITS)
13#define SZ_BITS _PAGE_SZ8K
14#elif PAGE_SHIFT == 16
15#define SZ_BITS _PAGE_SZ64K
16#elif PAGE_SHIFT == 19
17#define SZ_BITS _PAGE_SZ512K
18#elif PAGE_SHIFT == 22
19#define SZ_BITS _PAGE_SZ4MB
20#endif
21
22#define VALID_SZ_BITS (_PAGE_VALID | SZ_BITS)
23 13
24#define VPTE_BITS (_PAGE_CP | _PAGE_CV | _PAGE_P ) 14#define VPTE_BITS (_PAGE_CP | _PAGE_CV | _PAGE_P )
25#define VPTE_SHIFT (PAGE_SHIFT - 3) 15#define VPTE_SHIFT (PAGE_SHIFT - 3)
@@ -163,7 +153,6 @@ sparc64_vpte_continue:
163 stxa %g4, [%g1 + %g1] ASI_DMMU ! Restore previous TAG_ACCESS 153 stxa %g4, [%g1 + %g1] ASI_DMMU ! Restore previous TAG_ACCESS
164 retry ! Load PTE once again 154 retry ! Load PTE once again
165 155
166#undef SZ_BITS
167#undef VALID_SZ_BITS 156#undef VALID_SZ_BITS
168#undef VPTE_SHIFT 157#undef VPTE_SHIFT
169#undef VPTE_BITS 158#undef VPTE_BITS
diff --git a/arch/sparc64/kernel/dtlb_base.S b/arch/sparc64/kernel/dtlb_base.S
index ded2fed23fcc..702d349c1e88 100644
--- a/arch/sparc64/kernel/dtlb_base.S
+++ b/arch/sparc64/kernel/dtlb_base.S
@@ -71,7 +71,7 @@
71from_tl1_trap: 71from_tl1_trap:
72 rdpr %tl, %g5 ! For TL==3 test 72 rdpr %tl, %g5 ! For TL==3 test
73 CREATE_VPTE_OFFSET1(%g4, %g6) ! Create VPTE offset 73 CREATE_VPTE_OFFSET1(%g4, %g6) ! Create VPTE offset
74 be,pn %xcc, 3f ! Yep, special processing 74 be,pn %xcc, kvmap ! Yep, special processing
75 CREATE_VPTE_OFFSET2(%g4, %g6) ! Create VPTE offset 75 CREATE_VPTE_OFFSET2(%g4, %g6) ! Create VPTE offset
76 cmp %g5, 4 ! Last trap level? 76 cmp %g5, 4 ! Last trap level?
77 be,pn %xcc, longpath ! Yep, cannot risk VPTE miss 77 be,pn %xcc, longpath ! Yep, cannot risk VPTE miss
@@ -83,9 +83,9 @@ from_tl1_trap:
83 nop ! Delay-slot 83 nop ! Delay-slot
849: stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB 849: stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB
85 retry ! Trap return 85 retry ! Trap return
863: brlz,pt %g4, 9b ! Kernel virtual map? 86 nop
87 xor %g2, %g4, %g5 ! Finish bit twiddles 87 nop
88 ba,a,pt %xcc, kvmap ! Yep, go check for obp/vmalloc 88 nop
89 89
90/* DTLB ** ICACHE line 3: winfixups+real_faults */ 90/* DTLB ** ICACHE line 3: winfixups+real_faults */
91longpath: 91longpath:
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index b48349527853..2879b1072921 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -30,159 +30,6 @@
30 .text 30 .text
31 .align 32 31 .align 32
32 32
33 .globl sparc64_vpte_patchme1
34 .globl sparc64_vpte_patchme2
35/*
36 * On a second level vpte miss, check whether the original fault is to the OBP
37 * range (note that this is only possible for instruction miss, data misses to
38 * obp range do not use vpte). If so, go back directly to the faulting address.
39 * This is because we want to read the tpc, otherwise we have no way of knowing
40 * the 8k aligned faulting address if we are using >8k kernel pagesize. This
41 * also ensures no vpte range addresses are dropped into tlb while obp is
42 * executing (see inherit_locked_prom_mappings() rant).
43 */
44sparc64_vpte_nucleus:
45 /* Note that kvmap below has verified that the address is
46 * in the range MODULES_VADDR --> VMALLOC_END already. So
47 * here we need only check if it is an OBP address or not.
48 */
49 sethi %hi(LOW_OBP_ADDRESS), %g5
50 cmp %g4, %g5
51 blu,pn %xcc, sparc64_vpte_patchme1
52 mov 0x1, %g5
53 sllx %g5, 32, %g5
54 cmp %g4, %g5
55 blu,pn %xcc, obp_iaddr_patch
56 nop
57
58 /* These two instructions are patched by paginig_init(). */
59sparc64_vpte_patchme1:
60 sethi %hi(0), %g5
61sparc64_vpte_patchme2:
62 or %g5, %lo(0), %g5
63
64 /* With kernel PGD in %g5, branch back into dtlb_backend. */
65 ba,pt %xcc, sparc64_kpte_continue
66 andn %g1, 0x3, %g1 /* Finish PMD offset adjustment. */
67
68vpte_noent:
69 /* Restore previous TAG_ACCESS, %g5 is zero, and we will
70 * skip over the trap instruction so that the top level
71 * TLB miss handler will thing this %g5 value is just an
72 * invalid PTE, thus branching to full fault processing.
73 */
74 mov TLB_SFSR, %g1
75 stxa %g4, [%g1 + %g1] ASI_DMMU
76 done
77
78 .globl obp_iaddr_patch
79obp_iaddr_patch:
80 /* These two instructions patched by inherit_prom_mappings(). */
81 sethi %hi(0), %g5
82 or %g5, %lo(0), %g5
83
84 /* Behave as if we are at TL0. */
85 wrpr %g0, 1, %tl
86 rdpr %tpc, %g4 /* Find original faulting iaddr */
87 srlx %g4, 13, %g4 /* Throw out context bits */
88 sllx %g4, 13, %g4 /* g4 has vpn + ctx0 now */
89
90 /* Restore previous TAG_ACCESS. */
91 mov TLB_SFSR, %g1
92 stxa %g4, [%g1 + %g1] ASI_IMMU
93
94 /* Get PMD offset. */
95 srlx %g4, 23, %g6
96 and %g6, 0x7ff, %g6
97 sllx %g6, 2, %g6
98
99 /* Load PMD, is it valid? */
100 lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
101 brz,pn %g5, longpath
102 sllx %g5, 11, %g5
103
104 /* Get PTE offset. */
105 srlx %g4, 13, %g6
106 and %g6, 0x3ff, %g6
107 sllx %g6, 3, %g6
108
109 /* Load PTE. */
110 ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
111 brgez,pn %g5, longpath
112 nop
113
114 /* TLB load and return from trap. */
115 stxa %g5, [%g0] ASI_ITLB_DATA_IN
116 retry
117
118 .globl obp_daddr_patch
119obp_daddr_patch:
120 /* These two instructions patched by inherit_prom_mappings(). */
121 sethi %hi(0), %g5
122 or %g5, %lo(0), %g5
123
124 /* Get PMD offset. */
125 srlx %g4, 23, %g6
126 and %g6, 0x7ff, %g6
127 sllx %g6, 2, %g6
128
129 /* Load PMD, is it valid? */
130 lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
131 brz,pn %g5, longpath
132 sllx %g5, 11, %g5
133
134 /* Get PTE offset. */
135 srlx %g4, 13, %g6
136 and %g6, 0x3ff, %g6
137 sllx %g6, 3, %g6
138
139 /* Load PTE. */
140 ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
141 brgez,pn %g5, longpath
142 nop
143
144 /* TLB load and return from trap. */
145 stxa %g5, [%g0] ASI_DTLB_DATA_IN
146 retry
147
148/*
149 * On a first level data miss, check whether this is to the OBP range (note
150 * that such accesses can be made by prom, as well as by kernel using
151 * prom_getproperty on "address"), and if so, do not use vpte access ...
152 * rather, use information saved during inherit_prom_mappings() using 8k
153 * pagesize.
154 */
155 .align 32
156kvmap:
157 sethi %hi(MODULES_VADDR), %g5
158 cmp %g4, %g5
159 blu,pn %xcc, longpath
160 mov (VMALLOC_END >> 24), %g5
161 sllx %g5, 24, %g5
162 cmp %g4, %g5
163 bgeu,pn %xcc, longpath
164 nop
165
166kvmap_check_obp:
167 sethi %hi(LOW_OBP_ADDRESS), %g5
168 cmp %g4, %g5
169 blu,pn %xcc, kvmap_vmalloc_addr
170 mov 0x1, %g5
171 sllx %g5, 32, %g5
172 cmp %g4, %g5
173 blu,pn %xcc, obp_daddr_patch
174 nop
175
176kvmap_vmalloc_addr:
177 /* If we get here, a vmalloc addr was accessed, load kernel VPTE. */
178 ldxa [%g3 + %g6] ASI_N, %g5
179 brgez,pn %g5, longpath
180 nop
181
182 /* PTE is valid, load into TLB and return from trap. */
183 stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB
184 retry
185
186 /* This is trivial with the new code... */ 33 /* This is trivial with the new code... */
187 .globl do_fpdis 34 .globl do_fpdis
188do_fpdis: 35do_fpdis:
@@ -525,14 +372,13 @@ cheetah_plus_patch_fpdis:
525 * 372 *
526 * DATA 0: [low 32-bits] Address of function to call, jmp to this 373 * DATA 0: [low 32-bits] Address of function to call, jmp to this
527 * [high 32-bits] MMU Context Argument 0, place in %g5 374 * [high 32-bits] MMU Context Argument 0, place in %g5
528 * DATA 1: Address Argument 1, place in %g6 375 * DATA 1: Address Argument 1, place in %g1
529 * DATA 2: Address Argument 2, place in %g7 376 * DATA 2: Address Argument 2, place in %g7
530 * 377 *
531 * With this method we can do most of the cross-call tlb/cache 378 * With this method we can do most of the cross-call tlb/cache
532 * flushing very quickly. 379 * flushing very quickly.
533 * 380 *
534 * Current CPU's IRQ worklist table is locked into %g1, 381 * Current CPU's IRQ worklist table is locked into %g6, don't touch.
535 * don't touch.
536 */ 382 */
537 .text 383 .text
538 .align 32 384 .align 32
@@ -1006,13 +852,14 @@ cheetah_plus_dcpe_trap_vector:
1006 nop 852 nop
1007 853
1008do_cheetah_plus_data_parity: 854do_cheetah_plus_data_parity:
1009 ba,pt %xcc, etrap 855 rdpr %pil, %g2
856 wrpr %g0, 15, %pil
857 ba,pt %xcc, etrap_irq
1010 rd %pc, %g7 858 rd %pc, %g7
1011 mov 0x0, %o0 859 mov 0x0, %o0
1012 call cheetah_plus_parity_error 860 call cheetah_plus_parity_error
1013 add %sp, PTREGS_OFF, %o1 861 add %sp, PTREGS_OFF, %o1
1014 ba,pt %xcc, rtrap 862 ba,a,pt %xcc, rtrap_irq
1015 clr %l6
1016 863
1017cheetah_plus_dcpe_trap_vector_tl1: 864cheetah_plus_dcpe_trap_vector_tl1:
1018 membar #Sync 865 membar #Sync
@@ -1036,13 +883,14 @@ cheetah_plus_icpe_trap_vector:
1036 nop 883 nop
1037 884
1038do_cheetah_plus_insn_parity: 885do_cheetah_plus_insn_parity:
1039 ba,pt %xcc, etrap 886 rdpr %pil, %g2
887 wrpr %g0, 15, %pil
888 ba,pt %xcc, etrap_irq
1040 rd %pc, %g7 889 rd %pc, %g7
1041 mov 0x1, %o0 890 mov 0x1, %o0
1042 call cheetah_plus_parity_error 891 call cheetah_plus_parity_error
1043 add %sp, PTREGS_OFF, %o1 892 add %sp, PTREGS_OFF, %o1
1044 ba,pt %xcc, rtrap 893 ba,a,pt %xcc, rtrap_irq
1045 clr %l6
1046 894
1047cheetah_plus_icpe_trap_vector_tl1: 895cheetah_plus_icpe_trap_vector_tl1:
1048 membar #Sync 896 membar #Sync
@@ -1075,6 +923,10 @@ do_dcpe_tl1:
1075 nop 923 nop
1076 wrpr %g1, %tl ! Restore original trap level 924 wrpr %g1, %tl ! Restore original trap level
1077do_dcpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */ 925do_dcpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */
926 sethi %hi(dcache_parity_tl1_occurred), %g2
927 lduw [%g2 + %lo(dcache_parity_tl1_occurred)], %g1
928 add %g1, 1, %g1
929 stw %g1, [%g2 + %lo(dcache_parity_tl1_occurred)]
1078 /* Reset D-cache parity */ 930 /* Reset D-cache parity */
1079 sethi %hi(1 << 16), %g1 ! D-cache size 931 sethi %hi(1 << 16), %g1 ! D-cache size
1080 mov (1 << 5), %g2 ! D-cache line size 932 mov (1 << 5), %g2 ! D-cache line size
@@ -1121,6 +973,10 @@ do_icpe_tl1:
1121 nop 973 nop
1122 wrpr %g1, %tl ! Restore original trap level 974 wrpr %g1, %tl ! Restore original trap level
1123do_icpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */ 975do_icpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */
976 sethi %hi(icache_parity_tl1_occurred), %g2
977 lduw [%g2 + %lo(icache_parity_tl1_occurred)], %g1
978 add %g1, 1, %g1
979 stw %g1, [%g2 + %lo(icache_parity_tl1_occurred)]
1124 /* Flush I-cache */ 980 /* Flush I-cache */
1125 sethi %hi(1 << 15), %g1 ! I-cache size 981 sethi %hi(1 << 15), %g1 ! I-cache size
1126 mov (1 << 5), %g2 ! I-cache line size 982 mov (1 << 5), %g2 ! I-cache line size
diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index 1fa06c4e3bdb..89406f9649a9 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -80,15 +80,165 @@ sparc_ramdisk_image64:
80 .xword 0 80 .xword 0
81 .word _end 81 .word _end
82 82
83 /* We must be careful, 32-bit OpenBOOT will get confused if it 83 /* PROM cif handler code address is in %o4. */
84 * tries to save away a register window to a 64-bit kernel 84sparc64_boot:
85 * stack address. Flush all windows, disable interrupts, 851: rd %pc, %g7
86 * remap if necessary, jump onto kernel trap table, then kernel 86 set 1b, %g1
87 * stack, or else we die. 87 cmp %g1, %g7
88 be,pn %xcc, sparc64_boot_after_remap
89 mov %o4, %l7
90
91 /* We need to remap the kernel. Use position independant
92 * code to remap us to KERNBASE.
88 * 93 *
89 * PROM entry point is on %o4 94 * SILO can invoke us with 32-bit address masking enabled,
95 * so make sure that's clear.
90 */ 96 */
91sparc64_boot: 97 rdpr %pstate, %g1
98 andn %g1, PSTATE_AM, %g1
99 wrpr %g1, 0x0, %pstate
100 ba,a,pt %xcc, 1f
101
102 .globl prom_finddev_name, prom_chosen_path
103 .globl prom_getprop_name, prom_mmu_name
104 .globl prom_callmethod_name, prom_translate_name
105 .globl prom_map_name, prom_unmap_name, prom_mmu_ihandle_cache
106 .globl prom_boot_mapped_pc, prom_boot_mapping_mode
107 .globl prom_boot_mapping_phys_high, prom_boot_mapping_phys_low
108prom_finddev_name:
109 .asciz "finddevice"
110prom_chosen_path:
111 .asciz "/chosen"
112prom_getprop_name:
113 .asciz "getprop"
114prom_mmu_name:
115 .asciz "mmu"
116prom_callmethod_name:
117 .asciz "call-method"
118prom_translate_name:
119 .asciz "translate"
120prom_map_name:
121 .asciz "map"
122prom_unmap_name:
123 .asciz "unmap"
124 .align 4
125prom_mmu_ihandle_cache:
126 .word 0
127prom_boot_mapped_pc:
128 .word 0
129prom_boot_mapping_mode:
130 .word 0
131 .align 8
132prom_boot_mapping_phys_high:
133 .xword 0
134prom_boot_mapping_phys_low:
135 .xword 0
1361:
137 rd %pc, %l0
138 mov (1b - prom_finddev_name), %l1
139 mov (1b - prom_chosen_path), %l2
140 mov (1b - prom_boot_mapped_pc), %l3
141 sub %l0, %l1, %l1
142 sub %l0, %l2, %l2
143 sub %l0, %l3, %l3
144 stw %l0, [%l3]
145 sub %sp, (192 + 128), %sp
146
147 /* chosen_node = prom_finddevice("/chosen") */
148 stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "finddevice"
149 mov 1, %l3
150 stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 1
151 stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1
152 stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1, "/chosen"
153 stx %g0, [%sp + 2047 + 128 + 0x20] ! ret1
154 call %l7
155 add %sp, (2047 + 128), %o0 ! argument array
156
157 ldx [%sp + 2047 + 128 + 0x20], %l4 ! chosen device node
158
159 mov (1b - prom_getprop_name), %l1
160 mov (1b - prom_mmu_name), %l2
161 mov (1b - prom_mmu_ihandle_cache), %l5
162 sub %l0, %l1, %l1
163 sub %l0, %l2, %l2
164 sub %l0, %l5, %l5
165
166 /* prom_mmu_ihandle_cache = prom_getint(chosen_node, "mmu") */
167 stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "getprop"
168 mov 4, %l3
169 stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 4
170 mov 1, %l3
171 stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1
172 stx %l4, [%sp + 2047 + 128 + 0x18] ! arg1, chosen_node
173 stx %l2, [%sp + 2047 + 128 + 0x20] ! arg2, "mmu"
174 stx %l5, [%sp + 2047 + 128 + 0x28] ! arg3, &prom_mmu_ihandle_cache
175 mov 4, %l3
176 stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4, sizeof(arg3)
177 stx %g0, [%sp + 2047 + 128 + 0x38] ! ret1
178 call %l7
179 add %sp, (2047 + 128), %o0 ! argument array
180
181 mov (1b - prom_callmethod_name), %l1
182 mov (1b - prom_translate_name), %l2
183 sub %l0, %l1, %l1
184 sub %l0, %l2, %l2
185 lduw [%l5], %l5 ! prom_mmu_ihandle_cache
186
187 stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "call-method"
188 mov 3, %l3
189 stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 3
190 mov 5, %l3
191 stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 5
192 stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1: "translate"
193 stx %l5, [%sp + 2047 + 128 + 0x20] ! arg2: prom_mmu_ihandle_cache
194 srlx %l0, 22, %l3
195 sllx %l3, 22, %l3
196 stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: vaddr, our PC
197 stx %g0, [%sp + 2047 + 128 + 0x30] ! res1
198 stx %g0, [%sp + 2047 + 128 + 0x38] ! res2
199 stx %g0, [%sp + 2047 + 128 + 0x40] ! res3
200 stx %g0, [%sp + 2047 + 128 + 0x48] ! res4
201 stx %g0, [%sp + 2047 + 128 + 0x50] ! res5
202 call %l7
203 add %sp, (2047 + 128), %o0 ! argument array
204
205 ldx [%sp + 2047 + 128 + 0x40], %l1 ! translation mode
206 mov (1b - prom_boot_mapping_mode), %l4
207 sub %l0, %l4, %l4
208 stw %l1, [%l4]
209 mov (1b - prom_boot_mapping_phys_high), %l4
210 sub %l0, %l4, %l4
211 ldx [%sp + 2047 + 128 + 0x48], %l2 ! physaddr high
212 stx %l2, [%l4 + 0x0]
213 ldx [%sp + 2047 + 128 + 0x50], %l3 ! physaddr low
214 stx %l3, [%l4 + 0x8]
215
216 /* Leave service as-is, "call-method" */
217 mov 7, %l3
218 stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 7
219 mov 1, %l3
220 stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1
221 mov (1b - prom_map_name), %l3
222 sub %l0, %l3, %l3
223 stx %l3, [%sp + 2047 + 128 + 0x18] ! arg1: "map"
224 /* Leave arg2 as-is, prom_mmu_ihandle_cache */
225 mov -1, %l3
226 stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: mode (-1 default)
227 sethi %hi(8 * 1024 * 1024), %l3
228 stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4: size (8MB)
229 sethi %hi(KERNBASE), %l3
230 stx %l3, [%sp + 2047 + 128 + 0x38] ! arg5: vaddr (KERNBASE)
231 stx %g0, [%sp + 2047 + 128 + 0x40] ! arg6: empty
232 mov (1b - prom_boot_mapping_phys_low), %l3
233 sub %l0, %l3, %l3
234 ldx [%l3], %l3
235 stx %l3, [%sp + 2047 + 128 + 0x48] ! arg7: phys addr
236 call %l7
237 add %sp, (2047 + 128), %o0 ! argument array
238
239 add %sp, (192 + 128), %sp
240
241sparc64_boot_after_remap:
92 BRANCH_IF_CHEETAH_BASE(g1,g7,cheetah_boot) 242 BRANCH_IF_CHEETAH_BASE(g1,g7,cheetah_boot)
93 BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,cheetah_plus_boot) 243 BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,cheetah_plus_boot)
94 ba,pt %xcc, spitfire_boot 244 ba,pt %xcc, spitfire_boot
@@ -125,185 +275,7 @@ cheetah_generic_boot:
125 stxa %g0, [%g3] ASI_IMMU 275 stxa %g0, [%g3] ASI_IMMU
126 membar #Sync 276 membar #Sync
127 277
128 wrpr %g0, (PSTATE_PRIV|PSTATE_PEF|PSTATE_IE), %pstate 278 ba,a,pt %xcc, jump_to_sun4u_init
129 wr %g0, 0, %fprs
130
131 /* Just like for Spitfire, we probe itlb-2 for a mapping which
132 * matches our current %pc. We take the physical address in
133 * that mapping and use it to make our own.
134 */
135
136 /* %g5 holds the tlb data */
137 sethi %uhi(_PAGE_VALID | _PAGE_SZ4MB), %g5
138 sllx %g5, 32, %g5
139 or %g5, (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W | _PAGE_G), %g5
140
141 /* Put PADDR tlb data mask into %g3. */
142 sethi %uhi(_PAGE_PADDR), %g3
143 or %g3, %ulo(_PAGE_PADDR), %g3
144 sllx %g3, 32, %g3
145 sethi %hi(_PAGE_PADDR), %g7
146 or %g7, %lo(_PAGE_PADDR), %g7
147 or %g3, %g7, %g3
148
149 set 2 << 16, %l0 /* TLB entry walker. */
150 set 0x1fff, %l2 /* Page mask. */
151 rd %pc, %l3
152 andn %l3, %l2, %g2 /* vaddr comparator */
153
1541: ldxa [%l0] ASI_ITLB_TAG_READ, %g1
155 membar #Sync
156 andn %g1, %l2, %g1
157 cmp %g1, %g2
158 be,pn %xcc, cheetah_got_tlbentry
159 nop
160 and %l0, (127 << 3), %g1
161 cmp %g1, (127 << 3)
162 blu,pt %xcc, 1b
163 add %l0, (1 << 3), %l0
164
165 /* Search the small TLB. OBP never maps us like that but
166 * newer SILO can.
167 */
168 clr %l0
169
1701: ldxa [%l0] ASI_ITLB_TAG_READ, %g1
171 membar #Sync
172 andn %g1, %l2, %g1
173 cmp %g1, %g2
174 be,pn %xcc, cheetah_got_tlbentry
175 nop
176 cmp %l0, (15 << 3)
177 blu,pt %xcc, 1b
178 add %l0, (1 << 3), %l0
179
180 /* BUG() if we get here... */
181 ta 0x5
182
183cheetah_got_tlbentry:
184 ldxa [%l0] ASI_ITLB_DATA_ACCESS, %g0
185 ldxa [%l0] ASI_ITLB_DATA_ACCESS, %g1
186 membar #Sync
187 and %g1, %g3, %g1
188 set 0x5fff, %l0
189 andn %g1, %l0, %g1
190 or %g5, %g1, %g5
191
192 /* Clear out any KERNBASE area entries. */
193 set 2 << 16, %l0
194 sethi %hi(KERNBASE), %g3
195 sethi %hi(KERNBASE<<1), %g7
196 mov TLB_TAG_ACCESS, %l7
197
198 /* First, check ITLB */
1991: ldxa [%l0] ASI_ITLB_TAG_READ, %g1
200 membar #Sync
201 andn %g1, %l2, %g1
202 cmp %g1, %g3
203 blu,pn %xcc, 2f
204 cmp %g1, %g7
205 bgeu,pn %xcc, 2f
206 nop
207 stxa %g0, [%l7] ASI_IMMU
208 membar #Sync
209 stxa %g0, [%l0] ASI_ITLB_DATA_ACCESS
210 membar #Sync
211
2122: and %l0, (127 << 3), %g1
213 cmp %g1, (127 << 3)
214 blu,pt %xcc, 1b
215 add %l0, (1 << 3), %l0
216
217 /* Next, check DTLB */
218 set 2 << 16, %l0
2191: ldxa [%l0] ASI_DTLB_TAG_READ, %g1
220 membar #Sync
221 andn %g1, %l2, %g1
222 cmp %g1, %g3
223 blu,pn %xcc, 2f
224 cmp %g1, %g7
225 bgeu,pn %xcc, 2f
226 nop
227 stxa %g0, [%l7] ASI_DMMU
228 membar #Sync
229 stxa %g0, [%l0] ASI_DTLB_DATA_ACCESS
230 membar #Sync
231
2322: and %l0, (511 << 3), %g1
233 cmp %g1, (511 << 3)
234 blu,pt %xcc, 1b
235 add %l0, (1 << 3), %l0
236
237 /* On Cheetah+, have to check second DTLB. */
238 BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,l0,2f)
239 ba,pt %xcc, 9f
240 nop
241
2422: set 3 << 16, %l0
2431: ldxa [%l0] ASI_DTLB_TAG_READ, %g1
244 membar #Sync
245 andn %g1, %l2, %g1
246 cmp %g1, %g3
247 blu,pn %xcc, 2f
248 cmp %g1, %g7
249 bgeu,pn %xcc, 2f
250 nop
251 stxa %g0, [%l7] ASI_DMMU
252 membar #Sync
253 stxa %g0, [%l0] ASI_DTLB_DATA_ACCESS
254 membar #Sync
255
2562: and %l0, (511 << 3), %g1
257 cmp %g1, (511 << 3)
258 blu,pt %xcc, 1b
259 add %l0, (1 << 3), %l0
260
2619:
262
263 /* Now lock the TTE we created into ITLB-0 and DTLB-0,
264 * entry 15 (and maybe 14 too).
265 */
266 sethi %hi(KERNBASE), %g3
267 set (0 << 16) | (15 << 3), %g7
268 stxa %g3, [%l7] ASI_DMMU
269 membar #Sync
270 stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS
271 membar #Sync
272 stxa %g3, [%l7] ASI_IMMU
273 membar #Sync
274 stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS
275 membar #Sync
276 flush %g3
277 membar #Sync
278 sethi %hi(_end), %g3 /* Check for bigkernel case */
279 or %g3, %lo(_end), %g3
280 srl %g3, 23, %g3 /* Check if _end > 8M */
281 brz,pt %g3, 1f
282 sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */
283 sethi %hi(0x400000), %g3
284 or %g3, %lo(0x400000), %g3
285 add %g5, %g3, %g5 /* New tte data */
286 andn %g5, (_PAGE_G), %g5
287 sethi %hi(KERNBASE+0x400000), %g3
288 or %g3, %lo(KERNBASE+0x400000), %g3
289 set (0 << 16) | (14 << 3), %g7
290 stxa %g3, [%l7] ASI_DMMU
291 membar #Sync
292 stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS
293 membar #Sync
294 stxa %g3, [%l7] ASI_IMMU
295 membar #Sync
296 stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS
297 membar #Sync
298 flush %g3
299 membar #Sync
300 sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */
301 ba,pt %xcc, 1f
302 nop
303
3041: set sun4u_init, %g2
305 jmpl %g2 + %g0, %g0
306 nop
307 279
308spitfire_boot: 280spitfire_boot:
309 /* Typically PROM has already enabled both MMU's and both on-chip 281 /* Typically PROM has already enabled both MMU's and both on-chip
@@ -313,6 +285,7 @@ spitfire_boot:
313 stxa %g1, [%g0] ASI_LSU_CONTROL 285 stxa %g1, [%g0] ASI_LSU_CONTROL
314 membar #Sync 286 membar #Sync
315 287
288jump_to_sun4u_init:
316 /* 289 /*
317 * Make sure we are in privileged mode, have address masking, 290 * Make sure we are in privileged mode, have address masking,
318 * using the ordinary globals and have enabled floating 291 * using the ordinary globals and have enabled floating
@@ -324,151 +297,6 @@ spitfire_boot:
324 wrpr %g0, (PSTATE_PRIV|PSTATE_PEF|PSTATE_IE), %pstate 297 wrpr %g0, (PSTATE_PRIV|PSTATE_PEF|PSTATE_IE), %pstate
325 wr %g0, 0, %fprs 298 wr %g0, 0, %fprs
326 299
327spitfire_create_mappings:
328 /* %g5 holds the tlb data */
329 sethi %uhi(_PAGE_VALID | _PAGE_SZ4MB), %g5
330 sllx %g5, 32, %g5
331 or %g5, (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W | _PAGE_G), %g5
332
333 /* Base of physical memory cannot reliably be assumed to be
334 * at 0x0! Figure out where it happens to be. -DaveM
335 */
336
337 /* Put PADDR tlb data mask into %g3. */
338 sethi %uhi(_PAGE_PADDR_SF), %g3
339 or %g3, %ulo(_PAGE_PADDR_SF), %g3
340 sllx %g3, 32, %g3
341 sethi %hi(_PAGE_PADDR_SF), %g7
342 or %g7, %lo(_PAGE_PADDR_SF), %g7
343 or %g3, %g7, %g3
344
345 /* Walk through entire ITLB, looking for entry which maps
346 * our %pc currently, stick PADDR from there into %g5 tlb data.
347 */
348 clr %l0 /* TLB entry walker. */
349 set 0x1fff, %l2 /* Page mask. */
350 rd %pc, %l3
351 andn %l3, %l2, %g2 /* vaddr comparator */
3521:
353 /* Yes, the nops seem to be necessary for now, don't ask me why. -DaveM */
354 ldxa [%l0] ASI_ITLB_TAG_READ, %g1
355 nop
356 nop
357 nop
358 andn %g1, %l2, %g1 /* Get vaddr */
359 cmp %g1, %g2
360 be,a,pn %xcc, spitfire_got_tlbentry
361 ldxa [%l0] ASI_ITLB_DATA_ACCESS, %g1
362 cmp %l0, (63 << 3)
363 blu,pt %xcc, 1b
364 add %l0, (1 << 3), %l0
365
366 /* BUG() if we get here... */
367 ta 0x5
368
369spitfire_got_tlbentry:
370 /* Nops here again, perhaps Cheetah/Blackbird are better behaved... */
371 nop
372 nop
373 nop
374 and %g1, %g3, %g1 /* Mask to just get paddr bits. */
375 set 0x5fff, %l3 /* Mask offset to get phys base. */
376 andn %g1, %l3, %g1
377
378 /* NOTE: We hold on to %g1 paddr base as we need it below to lock
379 * NOTE: the PROM cif code into the TLB.
380 */
381
382 or %g5, %g1, %g5 /* Or it into TAG being built. */
383
384 clr %l0 /* TLB entry walker. */
385 sethi %hi(KERNBASE), %g3 /* 4M lower limit */
386 sethi %hi(KERNBASE<<1), %g7 /* 8M upper limit */
387 mov TLB_TAG_ACCESS, %l7
3881:
389 /* Yes, the nops seem to be necessary for now, don't ask me why. -DaveM */
390 ldxa [%l0] ASI_ITLB_TAG_READ, %g1
391 nop
392 nop
393 nop
394 andn %g1, %l2, %g1 /* Get vaddr */
395 cmp %g1, %g3
396 blu,pn %xcc, 2f
397 cmp %g1, %g7
398 bgeu,pn %xcc, 2f
399 nop
400 stxa %g0, [%l7] ASI_IMMU
401 stxa %g0, [%l0] ASI_ITLB_DATA_ACCESS
402 membar #Sync
4032:
404 cmp %l0, (63 << 3)
405 blu,pt %xcc, 1b
406 add %l0, (1 << 3), %l0
407
408 nop; nop; nop
409
410 clr %l0 /* TLB entry walker. */
4111:
412 /* Yes, the nops seem to be necessary for now, don't ask me why. -DaveM */
413 ldxa [%l0] ASI_DTLB_TAG_READ, %g1
414 nop
415 nop
416 nop
417 andn %g1, %l2, %g1 /* Get vaddr */
418 cmp %g1, %g3
419 blu,pn %xcc, 2f
420 cmp %g1, %g7
421 bgeu,pn %xcc, 2f
422 nop
423 stxa %g0, [%l7] ASI_DMMU
424 stxa %g0, [%l0] ASI_DTLB_DATA_ACCESS
425 membar #Sync
4262:
427 cmp %l0, (63 << 3)
428 blu,pt %xcc, 1b
429 add %l0, (1 << 3), %l0
430
431 nop; nop; nop
432
433
434 /* PROM never puts any TLB entries into the MMU with the lock bit
435 * set. So we gladly use tlb entry 63 for KERNBASE. And maybe 62 too.
436 */
437
438 sethi %hi(KERNBASE), %g3
439 mov (63 << 3), %g7
440 stxa %g3, [%l7] ASI_DMMU /* KERNBASE into TLB TAG */
441 stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS /* TTE into TLB DATA */
442 membar #Sync
443 stxa %g3, [%l7] ASI_IMMU /* KERNBASE into TLB TAG */
444 stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS /* TTE into TLB DATA */
445 membar #Sync
446 flush %g3
447 membar #Sync
448 sethi %hi(_end), %g3 /* Check for bigkernel case */
449 or %g3, %lo(_end), %g3
450 srl %g3, 23, %g3 /* Check if _end > 8M */
451 brz,pt %g3, 2f
452 sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */
453 sethi %hi(0x400000), %g3
454 or %g3, %lo(0x400000), %g3
455 add %g5, %g3, %g5 /* New tte data */
456 andn %g5, (_PAGE_G), %g5
457 sethi %hi(KERNBASE+0x400000), %g3
458 or %g3, %lo(KERNBASE+0x400000), %g3
459 mov (62 << 3), %g7
460 stxa %g3, [%l7] ASI_DMMU
461 stxa %g5, [%g7] ASI_DTLB_DATA_ACCESS
462 membar #Sync
463 stxa %g3, [%l7] ASI_IMMU
464 stxa %g5, [%g7] ASI_ITLB_DATA_ACCESS
465 membar #Sync
466 flush %g3
467 membar #Sync
468 sethi %hi(KERNBASE), %g3 /* Restore for fixup code below */
4692: ba,pt %xcc, 1f
470 nop
4711:
472 set sun4u_init, %g2 300 set sun4u_init, %g2
473 jmpl %g2 + %g0, %g0 301 jmpl %g2 + %g0, %g0
474 nop 302 nop
@@ -483,38 +311,12 @@ sun4u_init:
483 stxa %g0, [%g7] ASI_DMMU 311 stxa %g0, [%g7] ASI_DMMU
484 membar #Sync 312 membar #Sync
485 313
486 /* We are now safely (we hope) in Nucleus context (0), rewrite
487 * the KERNBASE TTE's so they no longer have the global bit set.
488 * Don't forget to setup TAG_ACCESS first 8-)
489 */
490 mov TLB_TAG_ACCESS, %g2
491 stxa %g3, [%g2] ASI_IMMU
492 stxa %g3, [%g2] ASI_DMMU
493 membar #Sync
494
495 BRANCH_IF_ANY_CHEETAH(g1,g7,cheetah_tlb_fixup) 314 BRANCH_IF_ANY_CHEETAH(g1,g7,cheetah_tlb_fixup)
496 315
497 ba,pt %xcc, spitfire_tlb_fixup 316 ba,pt %xcc, spitfire_tlb_fixup
498 nop 317 nop
499 318
500cheetah_tlb_fixup: 319cheetah_tlb_fixup:
501 set (0 << 16) | (15 << 3), %g7
502 ldxa [%g7] ASI_ITLB_DATA_ACCESS, %g0
503 ldxa [%g7] ASI_ITLB_DATA_ACCESS, %g1
504 andn %g1, (_PAGE_G), %g1
505 stxa %g1, [%g7] ASI_ITLB_DATA_ACCESS
506 membar #Sync
507
508 ldxa [%g7] ASI_DTLB_DATA_ACCESS, %g0
509 ldxa [%g7] ASI_DTLB_DATA_ACCESS, %g1
510 andn %g1, (_PAGE_G), %g1
511 stxa %g1, [%g7] ASI_DTLB_DATA_ACCESS
512 membar #Sync
513
514 /* Kill instruction prefetch queues. */
515 flush %g3
516 membar #Sync
517
518 mov 2, %g2 /* Set TLB type to cheetah+. */ 320 mov 2, %g2 /* Set TLB type to cheetah+. */
519 BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,1f) 321 BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,1f)
520 322
@@ -551,21 +353,6 @@ cheetah_tlb_fixup:
551 nop 353 nop
552 354
553spitfire_tlb_fixup: 355spitfire_tlb_fixup:
554 mov (63 << 3), %g7
555 ldxa [%g7] ASI_ITLB_DATA_ACCESS, %g1
556 andn %g1, (_PAGE_G), %g1
557 stxa %g1, [%g7] ASI_ITLB_DATA_ACCESS
558 membar #Sync
559
560 ldxa [%g7] ASI_DTLB_DATA_ACCESS, %g1
561 andn %g1, (_PAGE_G), %g1
562 stxa %g1, [%g7] ASI_DTLB_DATA_ACCESS
563 membar #Sync
564
565 /* Kill instruction prefetch queues. */
566 flush %g3
567 membar #Sync
568
569 /* Set TLB type to spitfire. */ 356 /* Set TLB type to spitfire. */
570 mov 0, %g2 357 mov 0, %g2
571 sethi %hi(tlb_type), %g1 358 sethi %hi(tlb_type), %g1
@@ -578,24 +365,6 @@ tlb_fixup_done:
578 mov %sp, %l6 365 mov %sp, %l6
579 mov %o4, %l7 366 mov %o4, %l7
580 367
581#if 0 /* We don't do it like this anymore, but for historical hack value
582 * I leave this snippet here to show how crazy we can be sometimes. 8-)
583 */
584
585 /* Setup "Linux Current Register", thanks Sun 8-) */
586 wr %g0, 0x1, %pcr
587
588 /* Blackbird errata workaround. See commentary in
589 * smp.c:smp_percpu_timer_interrupt() for more
590 * information.
591 */
592 ba,pt %xcc, 99f
593 nop
594 .align 64
59599: wr %g6, %g0, %pic
596 rd %pic, %g0
597#endif
598
599 wr %g0, ASI_P, %asi 368 wr %g0, ASI_P, %asi
600 mov 1, %g1 369 mov 1, %g1
601 sllx %g1, THREAD_SHIFT, %g1 370 sllx %g1, THREAD_SHIFT, %g1
@@ -756,12 +525,7 @@ bootup_user_stack_end:
756 525
757#include "ttable.S" 526#include "ttable.S"
758#include "systbls.S" 527#include "systbls.S"
759 528#include "ktlb.S"
760 .align 1024
761 .globl swapper_pg_dir
762swapper_pg_dir:
763 .word 0
764
765#include "etrap.S" 529#include "etrap.S"
766#include "rtrap.S" 530#include "rtrap.S"
767#include "winfixup.S" 531#include "winfixup.S"
@@ -776,8 +540,11 @@ swapper_pg_dir:
776prom_tba: .xword 0 540prom_tba: .xword 0
777tlb_type: .word 0 /* Must NOT end up in BSS */ 541tlb_type: .word 0 /* Must NOT end up in BSS */
778 .section ".fixup",#alloc,#execinstr 542 .section ".fixup",#alloc,#execinstr
779 .globl __ret_efault 543
544 .globl __ret_efault, __retl_efault
780__ret_efault: 545__ret_efault:
781 ret 546 ret
782 restore %g0, -EFAULT, %o0 547 restore %g0, -EFAULT, %o0
783 548__retl_efault:
549 retl
550 mov -EFAULT, %o0
diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S
new file mode 100644
index 000000000000..7796b37f478c
--- /dev/null
+++ b/arch/sparc64/kernel/ktlb.S
@@ -0,0 +1,198 @@
1/* arch/sparc64/kernel/ktlb.S: Kernel mapping TLB miss handling.
2 *
3 * Copyright (C) 1995, 1997, 2005 David S. Miller <davem@davemloft.net>
4 * Copyright (C) 1996 Eddie C. Dost (ecd@brainaid.de)
5 * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
6 * Copyright (C) 1996,98,99 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
7*/
8
9#include <linux/config.h>
10#include <asm/head.h>
11#include <asm/asi.h>
12#include <asm/page.h>
13#include <asm/pgtable.h>
14
15 .text
16 .align 32
17
18/*
19 * On a second level vpte miss, check whether the original fault is to the OBP
20 * range (note that this is only possible for instruction miss, data misses to
21 * obp range do not use vpte). If so, go back directly to the faulting address.
22 * This is because we want to read the tpc, otherwise we have no way of knowing
23 * the 8k aligned faulting address if we are using >8k kernel pagesize. This
24 * also ensures no vpte range addresses are dropped into tlb while obp is
25 * executing (see inherit_locked_prom_mappings() rant).
26 */
27sparc64_vpte_nucleus:
28 /* Note that kvmap below has verified that the address is
29 * in the range MODULES_VADDR --> VMALLOC_END already. So
30 * here we need only check if it is an OBP address or not.
31 */
32 sethi %hi(LOW_OBP_ADDRESS), %g5
33 cmp %g4, %g5
34 blu,pn %xcc, kern_vpte
35 mov 0x1, %g5
36 sllx %g5, 32, %g5
37 cmp %g4, %g5
38 blu,pn %xcc, vpte_insn_obp
39 nop
40
41 /* These two instructions are patched by paginig_init(). */
42kern_vpte:
43 sethi %hi(swapper_pgd_zero), %g5
44 lduw [%g5 + %lo(swapper_pgd_zero)], %g5
45
46 /* With kernel PGD in %g5, branch back into dtlb_backend. */
47 ba,pt %xcc, sparc64_kpte_continue
48 andn %g1, 0x3, %g1 /* Finish PMD offset adjustment. */
49
50vpte_noent:
51 /* Restore previous TAG_ACCESS, %g5 is zero, and we will
52 * skip over the trap instruction so that the top level
53 * TLB miss handler will thing this %g5 value is just an
54 * invalid PTE, thus branching to full fault processing.
55 */
56 mov TLB_SFSR, %g1
57 stxa %g4, [%g1 + %g1] ASI_DMMU
58 done
59
60vpte_insn_obp:
61 sethi %hi(prom_pmd_phys), %g5
62 ldx [%g5 + %lo(prom_pmd_phys)], %g5
63
64 /* Behave as if we are at TL0. */
65 wrpr %g0, 1, %tl
66 rdpr %tpc, %g4 /* Find original faulting iaddr */
67 srlx %g4, 13, %g4 /* Throw out context bits */
68 sllx %g4, 13, %g4 /* g4 has vpn + ctx0 now */
69
70 /* Restore previous TAG_ACCESS. */
71 mov TLB_SFSR, %g1
72 stxa %g4, [%g1 + %g1] ASI_IMMU
73
74 /* Get PMD offset. */
75 srlx %g4, 23, %g6
76 and %g6, 0x7ff, %g6
77 sllx %g6, 2, %g6
78
79 /* Load PMD, is it valid? */
80 lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
81 brz,pn %g5, longpath
82 sllx %g5, 11, %g5
83
84 /* Get PTE offset. */
85 srlx %g4, 13, %g6
86 and %g6, 0x3ff, %g6
87 sllx %g6, 3, %g6
88
89 /* Load PTE. */
90 ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
91 brgez,pn %g5, longpath
92 nop
93
94 /* TLB load and return from trap. */
95 stxa %g5, [%g0] ASI_ITLB_DATA_IN
96 retry
97
98kvmap_do_obp:
99 sethi %hi(prom_pmd_phys), %g5
100 ldx [%g5 + %lo(prom_pmd_phys)], %g5
101
102 /* Get PMD offset. */
103 srlx %g4, 23, %g6
104 and %g6, 0x7ff, %g6
105 sllx %g6, 2, %g6
106
107 /* Load PMD, is it valid? */
108 lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
109 brz,pn %g5, longpath
110 sllx %g5, 11, %g5
111
112 /* Get PTE offset. */
113 srlx %g4, 13, %g6
114 and %g6, 0x3ff, %g6
115 sllx %g6, 3, %g6
116
117 /* Load PTE. */
118 ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
119 brgez,pn %g5, longpath
120 nop
121
122 /* TLB load and return from trap. */
123 stxa %g5, [%g0] ASI_DTLB_DATA_IN
124 retry
125
126/*
127 * On a first level data miss, check whether this is to the OBP range (note
128 * that such accesses can be made by prom, as well as by kernel using
129 * prom_getproperty on "address"), and if so, do not use vpte access ...
130 * rather, use information saved during inherit_prom_mappings() using 8k
131 * pagesize.
132 */
133 .align 32
134kvmap:
135 brgez,pn %g4, kvmap_nonlinear
136 nop
137
138#ifdef CONFIG_DEBUG_PAGEALLOC
139 .globl kvmap_linear_patch
140kvmap_linear_patch:
141#endif
142 ba,pt %xcc, kvmap_load
143 xor %g2, %g4, %g5
144
145#ifdef CONFIG_DEBUG_PAGEALLOC
146 sethi %hi(swapper_pg_dir), %g5
147 or %g5, %lo(swapper_pg_dir), %g5
148 sllx %g4, 64 - (PGDIR_SHIFT + PGDIR_BITS), %g6
149 srlx %g6, 64 - PAGE_SHIFT, %g6
150 andn %g6, 0x3, %g6
151 lduw [%g5 + %g6], %g5
152 brz,pn %g5, longpath
153 sllx %g4, 64 - (PMD_SHIFT + PMD_BITS), %g6
154 srlx %g6, 64 - PAGE_SHIFT, %g6
155 sllx %g5, 11, %g5
156 andn %g6, 0x3, %g6
157 lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
158 brz,pn %g5, longpath
159 sllx %g4, 64 - PMD_SHIFT, %g6
160 srlx %g6, 64 - PAGE_SHIFT, %g6
161 sllx %g5, 11, %g5
162 andn %g6, 0x7, %g6
163 ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
164 brz,pn %g5, longpath
165 nop
166 ba,a,pt %xcc, kvmap_load
167#endif
168
169kvmap_nonlinear:
170 sethi %hi(MODULES_VADDR), %g5
171 cmp %g4, %g5
172 blu,pn %xcc, longpath
173 mov (VMALLOC_END >> 24), %g5
174 sllx %g5, 24, %g5
175 cmp %g4, %g5
176 bgeu,pn %xcc, longpath
177 nop
178
179kvmap_check_obp:
180 sethi %hi(LOW_OBP_ADDRESS), %g5
181 cmp %g4, %g5
182 blu,pn %xcc, kvmap_vmalloc_addr
183 mov 0x1, %g5
184 sllx %g5, 32, %g5
185 cmp %g4, %g5
186 blu,pn %xcc, kvmap_do_obp
187 nop
188
189kvmap_vmalloc_addr:
190 /* If we get here, a vmalloc addr was accessed, load kernel VPTE. */
191 ldxa [%g3 + %g6] ASI_N, %g5
192 brgez,pn %g5, longpath
193 nop
194
195kvmap_load:
196 /* PTE is valid, load into TLB and return from trap. */
197 stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB
198 retry
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index 331382e1a75d..cae5b61fe2f0 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -330,7 +330,7 @@ static int schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
330static void tomatillo_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_arg2) 330static void tomatillo_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_arg2)
331{ 331{
332 unsigned long sync_reg = (unsigned long) _arg2; 332 unsigned long sync_reg = (unsigned long) _arg2;
333 u64 mask = 1 << (__irq_ino(__irq(bucket)) & IMAP_INO); 333 u64 mask = 1UL << (__irq_ino(__irq(bucket)) & IMAP_INO);
334 u64 val; 334 u64 val;
335 int limit; 335 int limit;
336 336
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index 5efbff90d668..774ecbb8a031 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -31,6 +31,7 @@
31#include <asm/visasm.h> 31#include <asm/visasm.h>
32#include <asm/spitfire.h> 32#include <asm/spitfire.h>
33#include <asm/page.h> 33#include <asm/page.h>
34#include <asm/cpudata.h>
34 35
35/* Returning from ptrace is a bit tricky because the syscall return 36/* Returning from ptrace is a bit tricky because the syscall return
36 * low level code assumes any value returned which is negative and 37 * low level code assumes any value returned which is negative and
@@ -132,12 +133,16 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
132 if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) { 133 if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) {
133 unsigned long start = __pa(kaddr); 134 unsigned long start = __pa(kaddr);
134 unsigned long end = start + len; 135 unsigned long end = start + len;
136 unsigned long dcache_line_size;
137
138 dcache_line_size = local_cpu_data().dcache_line_size;
135 139
136 if (tlb_type == spitfire) { 140 if (tlb_type == spitfire) {
137 for (; start < end; start += 32) 141 for (; start < end; start += dcache_line_size)
138 spitfire_put_dcache_tag(start & 0x3fe0, 0x0); 142 spitfire_put_dcache_tag(start & 0x3fe0, 0x0);
139 } else { 143 } else {
140 for (; start < end; start += 32) 144 start &= ~(dcache_line_size - 1);
145 for (; start < end; start += dcache_line_size)
141 __asm__ __volatile__( 146 __asm__ __volatile__(
142 "stxa %%g0, [%0] %1\n\t" 147 "stxa %%g0, [%0] %1\n\t"
143 "membar #Sync" 148 "membar #Sync"
@@ -150,8 +155,11 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
150 if (write && tlb_type == spitfire) { 155 if (write && tlb_type == spitfire) {
151 unsigned long start = (unsigned long) kaddr; 156 unsigned long start = (unsigned long) kaddr;
152 unsigned long end = start + len; 157 unsigned long end = start + len;
158 unsigned long icache_line_size;
159
160 icache_line_size = local_cpu_data().icache_line_size;
153 161
154 for (; start < end; start += 32) 162 for (; start < end; start += icache_line_size)
155 flushi(start); 163 flushi(start);
156 } 164 }
157} 165}
diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index ddbed3341a23..4c9c8f241748 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -464,8 +464,6 @@ static void __init boot_flags_init(char *commands)
464 } 464 }
465} 465}
466 466
467extern int prom_probe_memory(void);
468extern unsigned long start, end;
469extern void panic_setup(char *, int *); 467extern void panic_setup(char *, int *);
470 468
471extern unsigned short root_flags; 469extern unsigned short root_flags;
@@ -492,13 +490,8 @@ void register_prom_callbacks(void)
492 "' linux-.soft2 to .soft2"); 490 "' linux-.soft2 to .soft2");
493} 491}
494 492
495extern void paging_init(void);
496
497void __init setup_arch(char **cmdline_p) 493void __init setup_arch(char **cmdline_p)
498{ 494{
499 unsigned long highest_paddr;
500 int i;
501
502 /* Initialize PROM console and command line. */ 495 /* Initialize PROM console and command line. */
503 *cmdline_p = prom_getbootargs(); 496 *cmdline_p = prom_getbootargs();
504 strcpy(saved_command_line, *cmdline_p); 497 strcpy(saved_command_line, *cmdline_p);
@@ -517,40 +510,6 @@ void __init setup_arch(char **cmdline_p)
517 boot_flags_init(*cmdline_p); 510 boot_flags_init(*cmdline_p);
518 511
519 idprom_init(); 512 idprom_init();
520 (void) prom_probe_memory();
521
522 /* In paging_init() we tip off this value to see if we need
523 * to change init_mm.pgd to point to the real alias mapping.
524 */
525 phys_base = 0xffffffffffffffffUL;
526 highest_paddr = 0UL;
527 for (i = 0; sp_banks[i].num_bytes != 0; i++) {
528 unsigned long top;
529
530 if (sp_banks[i].base_addr < phys_base)
531 phys_base = sp_banks[i].base_addr;
532 top = sp_banks[i].base_addr +
533 sp_banks[i].num_bytes;
534 if (highest_paddr < top)
535 highest_paddr = top;
536 }
537 pfn_base = phys_base >> PAGE_SHIFT;
538
539 switch (tlb_type) {
540 default:
541 case spitfire:
542 kern_base = spitfire_get_itlb_data(sparc64_highest_locked_tlbent());
543 kern_base &= _PAGE_PADDR_SF;
544 break;
545
546 case cheetah:
547 case cheetah_plus:
548 kern_base = cheetah_get_litlb_data(sparc64_highest_locked_tlbent());
549 kern_base &= _PAGE_PADDR;
550 break;
551 };
552
553 kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
554 513
555 if (!root_flags) 514 if (!root_flags)
556 root_mountflags &= ~MS_RDONLY; 515 root_mountflags &= ~MS_RDONLY;
@@ -625,6 +584,9 @@ extern void smp_info(struct seq_file *);
625extern void smp_bogo(struct seq_file *); 584extern void smp_bogo(struct seq_file *);
626extern void mmu_info(struct seq_file *); 585extern void mmu_info(struct seq_file *);
627 586
587unsigned int dcache_parity_tl1_occurred;
588unsigned int icache_parity_tl1_occurred;
589
628static int show_cpuinfo(struct seq_file *m, void *__unused) 590static int show_cpuinfo(struct seq_file *m, void *__unused)
629{ 591{
630 seq_printf(m, 592 seq_printf(m,
@@ -635,6 +597,8 @@ static int show_cpuinfo(struct seq_file *m, void *__unused)
635 "type\t\t: sun4u\n" 597 "type\t\t: sun4u\n"
636 "ncpus probed\t: %ld\n" 598 "ncpus probed\t: %ld\n"
637 "ncpus active\t: %ld\n" 599 "ncpus active\t: %ld\n"
600 "D$ parity tl1\t: %u\n"
601 "I$ parity tl1\t: %u\n"
638#ifndef CONFIG_SMP 602#ifndef CONFIG_SMP
639 "Cpu0Bogo\t: %lu.%02lu\n" 603 "Cpu0Bogo\t: %lu.%02lu\n"
640 "Cpu0ClkTck\t: %016lx\n" 604 "Cpu0ClkTck\t: %016lx\n"
@@ -647,7 +611,9 @@ static int show_cpuinfo(struct seq_file *m, void *__unused)
647 (prom_prev >> 8) & 0xff, 611 (prom_prev >> 8) & 0xff,
648 prom_prev & 0xff, 612 prom_prev & 0xff,
649 (long)num_possible_cpus(), 613 (long)num_possible_cpus(),
650 (long)num_online_cpus() 614 (long)num_online_cpus(),
615 dcache_parity_tl1_occurred,
616 icache_parity_tl1_occurred
651#ifndef CONFIG_SMP 617#ifndef CONFIG_SMP
652 , cpu_data(0).udelay_val/(500000/HZ), 618 , cpu_data(0).udelay_val/(500000/HZ),
653 (cpu_data(0).udelay_val/(5000/HZ)) % 100, 619 (cpu_data(0).udelay_val/(5000/HZ)) % 100,
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index b4fc6a5462b2..590df5a16f5a 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -93,6 +93,27 @@ void __init smp_store_cpu_info(int id)
93 cpu_data(id).pte_cache[1] = NULL; 93 cpu_data(id).pte_cache[1] = NULL;
94 cpu_data(id).pgd_cache = NULL; 94 cpu_data(id).pgd_cache = NULL;
95 cpu_data(id).idle_volume = 1; 95 cpu_data(id).idle_volume = 1;
96
97 cpu_data(id).dcache_size = prom_getintdefault(cpu_node, "dcache-size",
98 16 * 1024);
99 cpu_data(id).dcache_line_size =
100 prom_getintdefault(cpu_node, "dcache-line-size", 32);
101 cpu_data(id).icache_size = prom_getintdefault(cpu_node, "icache-size",
102 16 * 1024);
103 cpu_data(id).icache_line_size =
104 prom_getintdefault(cpu_node, "icache-line-size", 32);
105 cpu_data(id).ecache_size = prom_getintdefault(cpu_node, "ecache-size",
106 4 * 1024 * 1024);
107 cpu_data(id).ecache_line_size =
108 prom_getintdefault(cpu_node, "ecache-line-size", 64);
109 printk("CPU[%d]: Caches "
110 "D[sz(%d):line_sz(%d)] "
111 "I[sz(%d):line_sz(%d)] "
112 "E[sz(%d):line_sz(%d)]\n",
113 id,
114 cpu_data(id).dcache_size, cpu_data(id).dcache_line_size,
115 cpu_data(id).icache_size, cpu_data(id).icache_line_size,
116 cpu_data(id).ecache_size, cpu_data(id).ecache_line_size);
96} 117}
97 118
98static void smp_setup_percpu_timer(void); 119static void smp_setup_percpu_timer(void);
diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index 5f9e4fae612e..9cd272ac3ac1 100644
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -157,173 +157,199 @@ sys32_socketcall: /* %o0=call, %o1=args */
157 or %g2, %lo(__socketcall_table_begin), %g2 157 or %g2, %lo(__socketcall_table_begin), %g2
158 jmpl %g2 + %o0, %g0 158 jmpl %g2 + %o0, %g0
159 nop 159 nop
160do_einval:
161 retl
162 mov -EINVAL, %o0
160 163
161 /* Each entry is exactly 32 bytes. */
162 .align 32 164 .align 32
163__socketcall_table_begin: 165__socketcall_table_begin:
166
167 /* Each entry is exactly 32 bytes. */
164do_sys_socket: /* sys_socket(int, int, int) */ 168do_sys_socket: /* sys_socket(int, int, int) */
165 ldswa [%o1 + 0x0] %asi, %o0 1691: ldswa [%o1 + 0x0] %asi, %o0
166 sethi %hi(sys_socket), %g1 170 sethi %hi(sys_socket), %g1
167 ldswa [%o1 + 0x8] %asi, %o2 1712: ldswa [%o1 + 0x8] %asi, %o2
168 jmpl %g1 + %lo(sys_socket), %g0 172 jmpl %g1 + %lo(sys_socket), %g0
169 ldswa [%o1 + 0x4] %asi, %o1 1733: ldswa [%o1 + 0x4] %asi, %o1
170 nop 174 nop
171 nop 175 nop
172 nop 176 nop
173do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 177do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
174 ldswa [%o1 + 0x0] %asi, %o0 1784: ldswa [%o1 + 0x0] %asi, %o0
175 sethi %hi(sys_bind), %g1 179 sethi %hi(sys_bind), %g1
176 ldswa [%o1 + 0x8] %asi, %o2 1805: ldswa [%o1 + 0x8] %asi, %o2
177 jmpl %g1 + %lo(sys_bind), %g0 181 jmpl %g1 + %lo(sys_bind), %g0
178 lduwa [%o1 + 0x4] %asi, %o1 1826: lduwa [%o1 + 0x4] %asi, %o1
179 nop 183 nop
180 nop 184 nop
181 nop 185 nop
182do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 186do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
183 ldswa [%o1 + 0x0] %asi, %o0 1877: ldswa [%o1 + 0x0] %asi, %o0
184 sethi %hi(sys_connect), %g1 188 sethi %hi(sys_connect), %g1
185 ldswa [%o1 + 0x8] %asi, %o2 1898: ldswa [%o1 + 0x8] %asi, %o2
186 jmpl %g1 + %lo(sys_connect), %g0 190 jmpl %g1 + %lo(sys_connect), %g0
187 lduwa [%o1 + 0x4] %asi, %o1 1919: lduwa [%o1 + 0x4] %asi, %o1
188 nop 192 nop
189 nop 193 nop
190 nop 194 nop
191do_sys_listen: /* sys_listen(int, int) */ 195do_sys_listen: /* sys_listen(int, int) */
192 ldswa [%o1 + 0x0] %asi, %o0 19610: ldswa [%o1 + 0x0] %asi, %o0
193 sethi %hi(sys_listen), %g1 197 sethi %hi(sys_listen), %g1
194 jmpl %g1 + %lo(sys_listen), %g0 198 jmpl %g1 + %lo(sys_listen), %g0
195 ldswa [%o1 + 0x4] %asi, %o1 19911: ldswa [%o1 + 0x4] %asi, %o1
196 nop 200 nop
197 nop 201 nop
198 nop 202 nop
199 nop 203 nop
200do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 204do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
201 ldswa [%o1 + 0x0] %asi, %o0 20512: ldswa [%o1 + 0x0] %asi, %o0
202 sethi %hi(sys_accept), %g1 206 sethi %hi(sys_accept), %g1
203 lduwa [%o1 + 0x8] %asi, %o2 20713: lduwa [%o1 + 0x8] %asi, %o2
204 jmpl %g1 + %lo(sys_accept), %g0 208 jmpl %g1 + %lo(sys_accept), %g0
205 lduwa [%o1 + 0x4] %asi, %o1 20914: lduwa [%o1 + 0x4] %asi, %o1
206 nop 210 nop
207 nop 211 nop
208 nop 212 nop
209do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 213do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
210 ldswa [%o1 + 0x0] %asi, %o0 21415: ldswa [%o1 + 0x0] %asi, %o0
211 sethi %hi(sys_getsockname), %g1 215 sethi %hi(sys_getsockname), %g1
212 lduwa [%o1 + 0x8] %asi, %o2 21616: lduwa [%o1 + 0x8] %asi, %o2
213 jmpl %g1 + %lo(sys_getsockname), %g0 217 jmpl %g1 + %lo(sys_getsockname), %g0
214 lduwa [%o1 + 0x4] %asi, %o1 21817: lduwa [%o1 + 0x4] %asi, %o1
215 nop 219 nop
216 nop 220 nop
217 nop 221 nop
218do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 222do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
219 ldswa [%o1 + 0x0] %asi, %o0 22318: ldswa [%o1 + 0x0] %asi, %o0
220 sethi %hi(sys_getpeername), %g1 224 sethi %hi(sys_getpeername), %g1
221 lduwa [%o1 + 0x8] %asi, %o2 22519: lduwa [%o1 + 0x8] %asi, %o2
222 jmpl %g1 + %lo(sys_getpeername), %g0 226 jmpl %g1 + %lo(sys_getpeername), %g0
223 lduwa [%o1 + 0x4] %asi, %o1 22720: lduwa [%o1 + 0x4] %asi, %o1
224 nop 228 nop
225 nop 229 nop
226 nop 230 nop
227do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 231do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
228 ldswa [%o1 + 0x0] %asi, %o0 23221: ldswa [%o1 + 0x0] %asi, %o0
229 sethi %hi(sys_socketpair), %g1 233 sethi %hi(sys_socketpair), %g1
230 ldswa [%o1 + 0x8] %asi, %o2 23422: ldswa [%o1 + 0x8] %asi, %o2
231 lduwa [%o1 + 0xc] %asi, %o3 23523: lduwa [%o1 + 0xc] %asi, %o3
232 jmpl %g1 + %lo(sys_socketpair), %g0 236 jmpl %g1 + %lo(sys_socketpair), %g0
233 ldswa [%o1 + 0x4] %asi, %o1 23724: ldswa [%o1 + 0x4] %asi, %o1
234 nop 238 nop
235 nop 239 nop
236do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 240do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
237 ldswa [%o1 + 0x0] %asi, %o0 24125: ldswa [%o1 + 0x0] %asi, %o0
238 sethi %hi(sys_send), %g1 242 sethi %hi(sys_send), %g1
239 lduwa [%o1 + 0x8] %asi, %o2 24326: lduwa [%o1 + 0x8] %asi, %o2
240 lduwa [%o1 + 0xc] %asi, %o3 24427: lduwa [%o1 + 0xc] %asi, %o3
241 jmpl %g1 + %lo(sys_send), %g0 245 jmpl %g1 + %lo(sys_send), %g0
242 lduwa [%o1 + 0x4] %asi, %o1 24628: lduwa [%o1 + 0x4] %asi, %o1
243 nop 247 nop
244 nop 248 nop
245do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 249do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
246 ldswa [%o1 + 0x0] %asi, %o0 25029: ldswa [%o1 + 0x0] %asi, %o0
247 sethi %hi(sys_recv), %g1 251 sethi %hi(sys_recv), %g1
248 lduwa [%o1 + 0x8] %asi, %o2 25230: lduwa [%o1 + 0x8] %asi, %o2
249 lduwa [%o1 + 0xc] %asi, %o3 25331: lduwa [%o1 + 0xc] %asi, %o3
250 jmpl %g1 + %lo(sys_recv), %g0 254 jmpl %g1 + %lo(sys_recv), %g0
251 lduwa [%o1 + 0x4] %asi, %o1 25532: lduwa [%o1 + 0x4] %asi, %o1
252 nop 256 nop
253 nop 257 nop
254do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 258do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
255 ldswa [%o1 + 0x0] %asi, %o0 25933: ldswa [%o1 + 0x0] %asi, %o0
256 sethi %hi(sys_sendto), %g1 260 sethi %hi(sys_sendto), %g1
257 lduwa [%o1 + 0x8] %asi, %o2 26134: lduwa [%o1 + 0x8] %asi, %o2
258 lduwa [%o1 + 0xc] %asi, %o3 26235: lduwa [%o1 + 0xc] %asi, %o3
259 lduwa [%o1 + 0x10] %asi, %o4 26336: lduwa [%o1 + 0x10] %asi, %o4
260 ldswa [%o1 + 0x14] %asi, %o5 26437: ldswa [%o1 + 0x14] %asi, %o5
261 jmpl %g1 + %lo(sys_sendto), %g0 265 jmpl %g1 + %lo(sys_sendto), %g0
262 lduwa [%o1 + 0x4] %asi, %o1 26638: lduwa [%o1 + 0x4] %asi, %o1
263do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 267do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
264 ldswa [%o1 + 0x0] %asi, %o0 26839: ldswa [%o1 + 0x0] %asi, %o0
265 sethi %hi(sys_recvfrom), %g1 269 sethi %hi(sys_recvfrom), %g1
266 lduwa [%o1 + 0x8] %asi, %o2 27040: lduwa [%o1 + 0x8] %asi, %o2
267 lduwa [%o1 + 0xc] %asi, %o3 27141: lduwa [%o1 + 0xc] %asi, %o3
268 lduwa [%o1 + 0x10] %asi, %o4 27242: lduwa [%o1 + 0x10] %asi, %o4
269 lduwa [%o1 + 0x14] %asi, %o5 27343: lduwa [%o1 + 0x14] %asi, %o5
270 jmpl %g1 + %lo(sys_recvfrom), %g0 274 jmpl %g1 + %lo(sys_recvfrom), %g0
271 lduwa [%o1 + 0x4] %asi, %o1 27544: lduwa [%o1 + 0x4] %asi, %o1
272do_sys_shutdown: /* sys_shutdown(int, int) */ 276do_sys_shutdown: /* sys_shutdown(int, int) */
273 ldswa [%o1 + 0x0] %asi, %o0 27745: ldswa [%o1 + 0x0] %asi, %o0
274 sethi %hi(sys_shutdown), %g1 278 sethi %hi(sys_shutdown), %g1
275 jmpl %g1 + %lo(sys_shutdown), %g0 279 jmpl %g1 + %lo(sys_shutdown), %g0
276 ldswa [%o1 + 0x4] %asi, %o1 28046: ldswa [%o1 + 0x4] %asi, %o1
277 nop 281 nop
278 nop 282 nop
279 nop 283 nop
280 nop 284 nop
281do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 285do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
282 ldswa [%o1 + 0x0] %asi, %o0 28647: ldswa [%o1 + 0x0] %asi, %o0
283 sethi %hi(compat_sys_setsockopt), %g1 287 sethi %hi(compat_sys_setsockopt), %g1
284 ldswa [%o1 + 0x8] %asi, %o2 28848: ldswa [%o1 + 0x8] %asi, %o2
285 lduwa [%o1 + 0xc] %asi, %o3 28949: lduwa [%o1 + 0xc] %asi, %o3
286 ldswa [%o1 + 0x10] %asi, %o4 29050: ldswa [%o1 + 0x10] %asi, %o4
287 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 291 jmpl %g1 + %lo(compat_sys_setsockopt), %g0
288 ldswa [%o1 + 0x4] %asi, %o1 29251: ldswa [%o1 + 0x4] %asi, %o1
289 nop 293 nop
290do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 294do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
291 ldswa [%o1 + 0x0] %asi, %o0 29552: ldswa [%o1 + 0x0] %asi, %o0
292 sethi %hi(compat_sys_getsockopt), %g1 296 sethi %hi(compat_sys_getsockopt), %g1
293 ldswa [%o1 + 0x8] %asi, %o2 29753: ldswa [%o1 + 0x8] %asi, %o2
294 lduwa [%o1 + 0xc] %asi, %o3 29854: lduwa [%o1 + 0xc] %asi, %o3
295 lduwa [%o1 + 0x10] %asi, %o4 29955: lduwa [%o1 + 0x10] %asi, %o4
296 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 300 jmpl %g1 + %lo(compat_sys_getsockopt), %g0
297 ldswa [%o1 + 0x4] %asi, %o1 30156: ldswa [%o1 + 0x4] %asi, %o1
298 nop 302 nop
299do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 303do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
300 ldswa [%o1 + 0x0] %asi, %o0 30457: ldswa [%o1 + 0x0] %asi, %o0
301 sethi %hi(compat_sys_sendmsg), %g1 305 sethi %hi(compat_sys_sendmsg), %g1
302 lduwa [%o1 + 0x8] %asi, %o2 30658: lduwa [%o1 + 0x8] %asi, %o2
303 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 307 jmpl %g1 + %lo(compat_sys_sendmsg), %g0
304 lduwa [%o1 + 0x4] %asi, %o1 30859: lduwa [%o1 + 0x4] %asi, %o1
305 nop 309 nop
306 nop 310 nop
307 nop 311 nop
308do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 312do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
309 ldswa [%o1 + 0x0] %asi, %o0 31360: ldswa [%o1 + 0x0] %asi, %o0
310 sethi %hi(compat_sys_recvmsg), %g1 314 sethi %hi(compat_sys_recvmsg), %g1
311 lduwa [%o1 + 0x8] %asi, %o2 31561: lduwa [%o1 + 0x8] %asi, %o2
312 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 316 jmpl %g1 + %lo(compat_sys_recvmsg), %g0
313 lduwa [%o1 + 0x4] %asi, %o1 31762: lduwa [%o1 + 0x4] %asi, %o1
314 nop 318 nop
315 nop 319 nop
316 nop 320 nop
317__socketcall_table_end:
318
319do_einval:
320 retl
321 mov -EINVAL, %o0
322do_efault:
323 retl
324 mov -EFAULT, %o0
325 321
326 .section __ex_table 322 .section __ex_table
327 .align 4 323 .align 4
328 .word __socketcall_table_begin, 0, __socketcall_table_end, do_efault 324 .word 1b, __retl_efault, 2b, __retl_efault
325 .word 3b, __retl_efault, 4b, __retl_efault
326 .word 5b, __retl_efault, 6b, __retl_efault
327 .word 7b, __retl_efault, 8b, __retl_efault
328 .word 9b, __retl_efault, 10b, __retl_efault
329 .word 11b, __retl_efault, 12b, __retl_efault
330 .word 13b, __retl_efault, 14b, __retl_efault
331 .word 15b, __retl_efault, 16b, __retl_efault
332 .word 17b, __retl_efault, 18b, __retl_efault
333 .word 19b, __retl_efault, 20b, __retl_efault
334 .word 21b, __retl_efault, 22b, __retl_efault
335 .word 23b, __retl_efault, 24b, __retl_efault
336 .word 25b, __retl_efault, 26b, __retl_efault
337 .word 27b, __retl_efault, 28b, __retl_efault
338 .word 29b, __retl_efault, 30b, __retl_efault
339 .word 31b, __retl_efault, 32b, __retl_efault
340 .word 33b, __retl_efault, 34b, __retl_efault
341 .word 35b, __retl_efault, 36b, __retl_efault
342 .word 37b, __retl_efault, 38b, __retl_efault
343 .word 39b, __retl_efault, 40b, __retl_efault
344 .word 41b, __retl_efault, 42b, __retl_efault
345 .word 43b, __retl_efault, 44b, __retl_efault
346 .word 45b, __retl_efault, 46b, __retl_efault
347 .word 47b, __retl_efault, 48b, __retl_efault
348 .word 49b, __retl_efault, 50b, __retl_efault
349 .word 51b, __retl_efault, 52b, __retl_efault
350 .word 53b, __retl_efault, 54b, __retl_efault
351 .word 55b, __retl_efault, 56b, __retl_efault
352 .word 57b, __retl_efault, 58b, __retl_efault
353 .word 59b, __retl_efault, 60b, __retl_efault
354 .word 61b, __retl_efault, 62b, __retl_efault
329 .previous 355 .previous
diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S
index 3a145fc39cf2..89f2fcfcd662 100644
--- a/arch/sparc64/kernel/trampoline.S
+++ b/arch/sparc64/kernel/trampoline.S
@@ -119,8 +119,8 @@ startup_continue:
119 sethi %hi(itlb_load), %g2 119 sethi %hi(itlb_load), %g2
120 or %g2, %lo(itlb_load), %g2 120 or %g2, %lo(itlb_load), %g2
121 stx %g2, [%sp + 2047 + 128 + 0x18] 121 stx %g2, [%sp + 2047 + 128 + 0x18]
122 sethi %hi(mmu_ihandle_cache), %g2 122 sethi %hi(prom_mmu_ihandle_cache), %g2
123 lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 123 lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2
124 stx %g2, [%sp + 2047 + 128 + 0x20] 124 stx %g2, [%sp + 2047 + 128 + 0x20]
125 sethi %hi(KERNBASE), %g2 125 sethi %hi(KERNBASE), %g2
126 stx %g2, [%sp + 2047 + 128 + 0x28] 126 stx %g2, [%sp + 2047 + 128 + 0x28]
@@ -156,8 +156,8 @@ startup_continue:
156 sethi %hi(itlb_load), %g2 156 sethi %hi(itlb_load), %g2
157 or %g2, %lo(itlb_load), %g2 157 or %g2, %lo(itlb_load), %g2
158 stx %g2, [%sp + 2047 + 128 + 0x18] 158 stx %g2, [%sp + 2047 + 128 + 0x18]
159 sethi %hi(mmu_ihandle_cache), %g2 159 sethi %hi(prom_mmu_ihandle_cache), %g2
160 lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 160 lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2
161 stx %g2, [%sp + 2047 + 128 + 0x20] 161 stx %g2, [%sp + 2047 + 128 + 0x20]
162 sethi %hi(KERNBASE + 0x400000), %g2 162 sethi %hi(KERNBASE + 0x400000), %g2
163 stx %g2, [%sp + 2047 + 128 + 0x28] 163 stx %g2, [%sp + 2047 + 128 + 0x28]
@@ -190,8 +190,8 @@ do_dtlb:
190 sethi %hi(dtlb_load), %g2 190 sethi %hi(dtlb_load), %g2
191 or %g2, %lo(dtlb_load), %g2 191 or %g2, %lo(dtlb_load), %g2
192 stx %g2, [%sp + 2047 + 128 + 0x18] 192 stx %g2, [%sp + 2047 + 128 + 0x18]
193 sethi %hi(mmu_ihandle_cache), %g2 193 sethi %hi(prom_mmu_ihandle_cache), %g2
194 lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 194 lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2
195 stx %g2, [%sp + 2047 + 128 + 0x20] 195 stx %g2, [%sp + 2047 + 128 + 0x20]
196 sethi %hi(KERNBASE), %g2 196 sethi %hi(KERNBASE), %g2
197 stx %g2, [%sp + 2047 + 128 + 0x28] 197 stx %g2, [%sp + 2047 + 128 + 0x28]
@@ -228,8 +228,8 @@ do_dtlb:
228 sethi %hi(dtlb_load), %g2 228 sethi %hi(dtlb_load), %g2
229 or %g2, %lo(dtlb_load), %g2 229 or %g2, %lo(dtlb_load), %g2
230 stx %g2, [%sp + 2047 + 128 + 0x18] 230 stx %g2, [%sp + 2047 + 128 + 0x18]
231 sethi %hi(mmu_ihandle_cache), %g2 231 sethi %hi(prom_mmu_ihandle_cache), %g2
232 lduw [%g2 + %lo(mmu_ihandle_cache)], %g2 232 lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2
233 stx %g2, [%sp + 2047 + 128 + 0x20] 233 stx %g2, [%sp + 2047 + 128 + 0x20]
234 sethi %hi(KERNBASE + 0x400000), %g2 234 sethi %hi(KERNBASE + 0x400000), %g2
235 stx %g2, [%sp + 2047 + 128 + 0x28] 235 stx %g2, [%sp + 2047 + 128 + 0x28]
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index b280b2ef674f..5570e7bb22bb 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -189,19 +189,18 @@ void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, un
189 189
190 if (regs->tstate & TSTATE_PRIV) { 190 if (regs->tstate & TSTATE_PRIV) {
191 /* Test if this comes from uaccess places. */ 191 /* Test if this comes from uaccess places. */
192 unsigned long fixup; 192 const struct exception_table_entry *entry;
193 unsigned long g2 = regs->u_regs[UREG_G2];
194 193
195 if ((fixup = search_extables_range(regs->tpc, &g2))) { 194 entry = search_exception_tables(regs->tpc);
196 /* Ouch, somebody is trying ugly VM hole tricks on us... */ 195 if (entry) {
196 /* Ouch, somebody is trying VM hole tricks on us... */
197#ifdef DEBUG_EXCEPTIONS 197#ifdef DEBUG_EXCEPTIONS
198 printk("Exception: PC<%016lx> faddr<UNKNOWN>\n", regs->tpc); 198 printk("Exception: PC<%016lx> faddr<UNKNOWN>\n", regs->tpc);
199 printk("EX_TABLE: insn<%016lx> fixup<%016lx> " 199 printk("EX_TABLE: insn<%016lx> fixup<%016lx>\n",
200 "g2<%016lx>\n", regs->tpc, fixup, g2); 200 regs->tpc, entry->fixup);
201#endif 201#endif
202 regs->tpc = fixup; 202 regs->tpc = entry->fixup;
203 regs->tnpc = regs->tpc + 4; 203 regs->tnpc = regs->tpc + 4;
204 regs->u_regs[UREG_G2] = g2;
205 return; 204 return;
206 } 205 }
207 /* Shit... */ 206 /* Shit... */
@@ -758,26 +757,12 @@ void __init cheetah_ecache_flush_init(void)
758 ecache_flush_size = (2 * largest_size); 757 ecache_flush_size = (2 * largest_size);
759 ecache_flush_linesize = smallest_linesize; 758 ecache_flush_linesize = smallest_linesize;
760 759
761 /* Discover a physically contiguous chunk of physical 760 ecache_flush_physbase = find_ecache_flush_span(ecache_flush_size);
762 * memory in 'sp_banks' of size ecache_flush_size calculated
763 * above. Store the physical base of this area at
764 * ecache_flush_physbase.
765 */
766 for (node = 0; ; node++) {
767 if (sp_banks[node].num_bytes == 0)
768 break;
769 if (sp_banks[node].num_bytes >= ecache_flush_size) {
770 ecache_flush_physbase = sp_banks[node].base_addr;
771 break;
772 }
773 }
774 761
775 /* Note: Zero would be a valid value of ecache_flush_physbase so 762 if (ecache_flush_physbase == ~0UL) {
776 * don't use that as the success test. :-)
777 */
778 if (sp_banks[node].num_bytes == 0) {
779 prom_printf("cheetah_ecache_flush_init: Cannot find %d byte " 763 prom_printf("cheetah_ecache_flush_init: Cannot find %d byte "
780 "contiguous physical memory.\n", ecache_flush_size); 764 "contiguous physical memory.\n",
765 ecache_flush_size);
781 prom_halt(); 766 prom_halt();
782 } 767 }
783 768
@@ -869,14 +854,19 @@ static void cheetah_flush_ecache_line(unsigned long physaddr)
869 */ 854 */
870static void __cheetah_flush_icache(void) 855static void __cheetah_flush_icache(void)
871{ 856{
872 unsigned long i; 857 unsigned int icache_size, icache_line_size;
858 unsigned long addr;
859
860 icache_size = local_cpu_data().icache_size;
861 icache_line_size = local_cpu_data().icache_line_size;
873 862
874 /* Clear the valid bits in all the tags. */ 863 /* Clear the valid bits in all the tags. */
875 for (i = 0; i < (1 << 15); i += (1 << 5)) { 864 for (addr = 0; addr < icache_size; addr += icache_line_size) {
876 __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" 865 __asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
877 "membar #Sync" 866 "membar #Sync"
878 : /* no outputs */ 867 : /* no outputs */
879 : "r" (i | (2 << 3)), "i" (ASI_IC_TAG)); 868 : "r" (addr | (2 << 3)),
869 "i" (ASI_IC_TAG));
880 } 870 }
881} 871}
882 872
@@ -904,13 +894,17 @@ static void cheetah_flush_icache(void)
904 894
905static void cheetah_flush_dcache(void) 895static void cheetah_flush_dcache(void)
906{ 896{
907 unsigned long i; 897 unsigned int dcache_size, dcache_line_size;
898 unsigned long addr;
908 899
909 for (i = 0; i < (1 << 16); i += (1 << 5)) { 900 dcache_size = local_cpu_data().dcache_size;
901 dcache_line_size = local_cpu_data().dcache_line_size;
902
903 for (addr = 0; addr < dcache_size; addr += dcache_line_size) {
910 __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" 904 __asm__ __volatile__("stxa %%g0, [%0] %1\n\t"
911 "membar #Sync" 905 "membar #Sync"
912 : /* no outputs */ 906 : /* no outputs */
913 : "r" (i), "i" (ASI_DCACHE_TAG)); 907 : "r" (addr), "i" (ASI_DCACHE_TAG));
914 } 908 }
915} 909}
916 910
@@ -921,24 +915,29 @@ static void cheetah_flush_dcache(void)
921 */ 915 */
922static void cheetah_plus_zap_dcache_parity(void) 916static void cheetah_plus_zap_dcache_parity(void)
923{ 917{
924 unsigned long i; 918 unsigned int dcache_size, dcache_line_size;
919 unsigned long addr;
920
921 dcache_size = local_cpu_data().dcache_size;
922 dcache_line_size = local_cpu_data().dcache_line_size;
925 923
926 for (i = 0; i < (1 << 16); i += (1 << 5)) { 924 for (addr = 0; addr < dcache_size; addr += dcache_line_size) {
927 unsigned long tag = (i >> 14); 925 unsigned long tag = (addr >> 14);
928 unsigned long j; 926 unsigned long line;
929 927
930 __asm__ __volatile__("membar #Sync\n\t" 928 __asm__ __volatile__("membar #Sync\n\t"
931 "stxa %0, [%1] %2\n\t" 929 "stxa %0, [%1] %2\n\t"
932 "membar #Sync" 930 "membar #Sync"
933 : /* no outputs */ 931 : /* no outputs */
934 : "r" (tag), "r" (i), 932 : "r" (tag), "r" (addr),
935 "i" (ASI_DCACHE_UTAG)); 933 "i" (ASI_DCACHE_UTAG));
936 for (j = i; j < i + (1 << 5); j += (1 << 3)) 934 for (line = addr; line < addr + dcache_line_size; line += 8)
937 __asm__ __volatile__("membar #Sync\n\t" 935 __asm__ __volatile__("membar #Sync\n\t"
938 "stxa %%g0, [%0] %1\n\t" 936 "stxa %%g0, [%0] %1\n\t"
939 "membar #Sync" 937 "membar #Sync"
940 : /* no outputs */ 938 : /* no outputs */
941 : "r" (j), "i" (ASI_DCACHE_DATA)); 939 : "r" (line),
940 "i" (ASI_DCACHE_DATA));
942 } 941 }
943} 942}
944 943
@@ -1332,16 +1331,12 @@ static int cheetah_fix_ce(unsigned long physaddr)
1332/* Return non-zero if PADDR is a valid physical memory address. */ 1331/* Return non-zero if PADDR is a valid physical memory address. */
1333static int cheetah_check_main_memory(unsigned long paddr) 1332static int cheetah_check_main_memory(unsigned long paddr)
1334{ 1333{
1335 int i; 1334 unsigned long vaddr = PAGE_OFFSET + paddr;
1336 1335
1337 for (i = 0; ; i++) { 1336 if (vaddr > (unsigned long) high_memory)
1338 if (sp_banks[i].num_bytes == 0) 1337 return 0;
1339 break; 1338
1340 if (paddr >= sp_banks[i].base_addr && 1339 return kern_addr_valid(vaddr);
1341 paddr < (sp_banks[i].base_addr + sp_banks[i].num_bytes))
1342 return 1;
1343 }
1344 return 0;
1345} 1340}
1346 1341
1347void cheetah_cee_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) 1342void cheetah_cee_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar)
@@ -1596,10 +1591,10 @@ void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned
1596 /* OK, usermode access. */ 1591 /* OK, usermode access. */
1597 recoverable = 1; 1592 recoverable = 1;
1598 } else { 1593 } else {
1599 unsigned long g2 = regs->u_regs[UREG_G2]; 1594 const struct exception_table_entry *entry;
1600 unsigned long fixup = search_extables_range(regs->tpc, &g2);
1601 1595
1602 if (fixup != 0UL) { 1596 entry = search_exception_tables(regs->tpc);
1597 if (entry) {
1603 /* OK, kernel access to userspace. */ 1598 /* OK, kernel access to userspace. */
1604 recoverable = 1; 1599 recoverable = 1;
1605 1600
@@ -1618,9 +1613,8 @@ void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned
1618 * recoverable condition. 1613 * recoverable condition.
1619 */ 1614 */
1620 if (recoverable) { 1615 if (recoverable) {
1621 regs->tpc = fixup; 1616 regs->tpc = entry->fixup;
1622 regs->tnpc = regs->tpc + 4; 1617 regs->tnpc = regs->tpc + 4;
1623 regs->u_regs[UREG_G2] = g2;
1624 } 1618 }
1625 } 1619 }
1626 } 1620 }
diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S
index da48400bcc95..1f5b5b708ce7 100644
--- a/arch/sparc64/kernel/una_asm.S
+++ b/arch/sparc64/kernel/una_asm.S
@@ -6,13 +6,6 @@
6 6
7 .text 7 .text
8 8
9kernel_unaligned_trap_fault:
10 call kernel_mna_trap_fault
11 nop
12 retl
13 nop
14 .size kern_unaligned_trap_fault, .-kern_unaligned_trap_fault
15
16 .globl __do_int_store 9 .globl __do_int_store
17__do_int_store: 10__do_int_store:
18 rd %asi, %o4 11 rd %asi, %o4
@@ -51,24 +44,24 @@ __do_int_store:
510: 440:
52 wr %o4, 0x0, %asi 45 wr %o4, 0x0, %asi
53 retl 46 retl
54 nop 47 mov 0, %o0
55 .size __do_int_store, .-__do_int_store 48 .size __do_int_store, .-__do_int_store
56 49
57 .section __ex_table 50 .section __ex_table
58 .word 4b, kernel_unaligned_trap_fault 51 .word 4b, __retl_efault
59 .word 5b, kernel_unaligned_trap_fault 52 .word 5b, __retl_efault
60 .word 6b, kernel_unaligned_trap_fault 53 .word 6b, __retl_efault
61 .word 7b, kernel_unaligned_trap_fault 54 .word 7b, __retl_efault
62 .word 8b, kernel_unaligned_trap_fault 55 .word 8b, __retl_efault
63 .word 9b, kernel_unaligned_trap_fault 56 .word 9b, __retl_efault
64 .word 10b, kernel_unaligned_trap_fault 57 .word 10b, __retl_efault
65 .word 11b, kernel_unaligned_trap_fault 58 .word 11b, __retl_efault
66 .word 12b, kernel_unaligned_trap_fault 59 .word 12b, __retl_efault
67 .word 13b, kernel_unaligned_trap_fault 60 .word 13b, __retl_efault
68 .word 14b, kernel_unaligned_trap_fault 61 .word 14b, __retl_efault
69 .word 15b, kernel_unaligned_trap_fault 62 .word 15b, __retl_efault
70 .word 16b, kernel_unaligned_trap_fault 63 .word 16b, __retl_efault
71 .word 17b, kernel_unaligned_trap_fault 64 .word 17b, __retl_efault
72 .previous 65 .previous
73 66
74 .globl do_int_load 67 .globl do_int_load
@@ -133,21 +126,21 @@ do_int_load:
1330: 1260:
134 wr %o5, 0x0, %asi 127 wr %o5, 0x0, %asi
135 retl 128 retl
136 nop 129 mov 0, %o0
137 .size __do_int_load, .-__do_int_load 130 .size __do_int_load, .-__do_int_load
138 131
139 .section __ex_table 132 .section __ex_table
140 .word 4b, kernel_unaligned_trap_fault 133 .word 4b, __retl_efault
141 .word 5b, kernel_unaligned_trap_fault 134 .word 5b, __retl_efault
142 .word 6b, kernel_unaligned_trap_fault 135 .word 6b, __retl_efault
143 .word 7b, kernel_unaligned_trap_fault 136 .word 7b, __retl_efault
144 .word 8b, kernel_unaligned_trap_fault 137 .word 8b, __retl_efault
145 .word 9b, kernel_unaligned_trap_fault 138 .word 9b, __retl_efault
146 .word 10b, kernel_unaligned_trap_fault 139 .word 10b, __retl_efault
147 .word 11b, kernel_unaligned_trap_fault 140 .word 11b, __retl_efault
148 .word 12b, kernel_unaligned_trap_fault 141 .word 12b, __retl_efault
149 .word 13b, kernel_unaligned_trap_fault 142 .word 13b, __retl_efault
150 .word 14b, kernel_unaligned_trap_fault 143 .word 14b, __retl_efault
151 .word 15b, kernel_unaligned_trap_fault 144 .word 15b, __retl_efault
152 .word 16b, kernel_unaligned_trap_fault 145 .word 16b, __retl_efault
153 .previous 146 .previous
diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index 42718f6a7d36..70faf630603b 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -180,14 +180,14 @@ static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs)
180 die_if_kernel(str, regs); 180 die_if_kernel(str, regs);
181} 181}
182 182
183extern void do_int_load(unsigned long *dest_reg, int size, 183extern int do_int_load(unsigned long *dest_reg, int size,
184 unsigned long *saddr, int is_signed, int asi); 184 unsigned long *saddr, int is_signed, int asi);
185 185
186extern void __do_int_store(unsigned long *dst_addr, int size, 186extern int __do_int_store(unsigned long *dst_addr, int size,
187 unsigned long src_val, int asi); 187 unsigned long src_val, int asi);
188 188
189static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr, 189static inline int do_int_store(int reg_num, int size, unsigned long *dst_addr,
190 struct pt_regs *regs, int asi, int orig_asi) 190 struct pt_regs *regs, int asi, int orig_asi)
191{ 191{
192 unsigned long zero = 0; 192 unsigned long zero = 0;
193 unsigned long *src_val_p = &zero; 193 unsigned long *src_val_p = &zero;
@@ -219,7 +219,7 @@ static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr,
219 break; 219 break;
220 }; 220 };
221 } 221 }
222 __do_int_store(dst_addr, size, src_val, asi); 222 return __do_int_store(dst_addr, size, src_val, asi);
223} 223}
224 224
225static inline void advance(struct pt_regs *regs) 225static inline void advance(struct pt_regs *regs)
@@ -242,14 +242,14 @@ static inline int ok_for_kernel(unsigned int insn)
242 return !floating_point_load_or_store_p(insn); 242 return !floating_point_load_or_store_p(insn);
243} 243}
244 244
245void kernel_mna_trap_fault(void) 245static void kernel_mna_trap_fault(void)
246{ 246{
247 struct pt_regs *regs = current_thread_info()->kern_una_regs; 247 struct pt_regs *regs = current_thread_info()->kern_una_regs;
248 unsigned int insn = current_thread_info()->kern_una_insn; 248 unsigned int insn = current_thread_info()->kern_una_insn;
249 unsigned long g2 = regs->u_regs[UREG_G2]; 249 const struct exception_table_entry *entry;
250 unsigned long fixup = search_extables_range(regs->tpc, &g2);
251 250
252 if (!fixup) { 251 entry = search_exception_tables(regs->tpc);
252 if (!entry) {
253 unsigned long address; 253 unsigned long address;
254 254
255 address = compute_effective_address(regs, insn, 255 address = compute_effective_address(regs, insn,
@@ -270,9 +270,8 @@ void kernel_mna_trap_fault(void)
270 die_if_kernel("Oops", regs); 270 die_if_kernel("Oops", regs);
271 /* Not reached */ 271 /* Not reached */
272 } 272 }
273 regs->tpc = fixup; 273 regs->tpc = entry->fixup;
274 regs->tnpc = regs->tpc + 4; 274 regs->tnpc = regs->tpc + 4;
275 regs->u_regs [UREG_G2] = g2;
276 275
277 regs->tstate &= ~TSTATE_ASI; 276 regs->tstate &= ~TSTATE_ASI;
278 regs->tstate |= (ASI_AIUS << 24UL); 277 regs->tstate |= (ASI_AIUS << 24UL);
@@ -294,8 +293,8 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
294 293
295 kernel_mna_trap_fault(); 294 kernel_mna_trap_fault();
296 } else { 295 } else {
297 unsigned long addr; 296 unsigned long addr, *reg_addr;
298 int orig_asi, asi; 297 int orig_asi, asi, err;
299 298
300 addr = compute_effective_address(regs, insn, 299 addr = compute_effective_address(regs, insn,
301 ((insn >> 25) & 0x1f)); 300 ((insn >> 25) & 0x1f));
@@ -319,11 +318,12 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
319 }; 318 };
320 switch (dir) { 319 switch (dir) {
321 case load: 320 case load:
322 do_int_load(fetch_reg_addr(((insn>>25)&0x1f), regs), 321 reg_addr = fetch_reg_addr(((insn>>25)&0x1f), regs);
323 size, (unsigned long *) addr, 322 err = do_int_load(reg_addr, size,
324 decode_signedness(insn), asi); 323 (unsigned long *) addr,
325 if (unlikely(asi != orig_asi)) { 324 decode_signedness(insn), asi);
326 unsigned long val_in = *(unsigned long *) addr; 325 if (likely(!err) && unlikely(asi != orig_asi)) {
326 unsigned long val_in = *reg_addr;
327 switch (size) { 327 switch (size) {
328 case 2: 328 case 2:
329 val_in = swab16(val_in); 329 val_in = swab16(val_in);
@@ -339,21 +339,24 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
339 BUG(); 339 BUG();
340 break; 340 break;
341 }; 341 };
342 *(unsigned long *) addr = val_in; 342 *reg_addr = val_in;
343 } 343 }
344 break; 344 break;
345 345
346 case store: 346 case store:
347 do_int_store(((insn>>25)&0x1f), size, 347 err = do_int_store(((insn>>25)&0x1f), size,
348 (unsigned long *) addr, regs, 348 (unsigned long *) addr, regs,
349 asi, orig_asi); 349 asi, orig_asi);
350 break; 350 break;
351 351
352 default: 352 default:
353 panic("Impossible kernel unaligned trap."); 353 panic("Impossible kernel unaligned trap.");
354 /* Not reached... */ 354 /* Not reached... */
355 } 355 }
356 advance(regs); 356 if (unlikely(err))
357 kernel_mna_trap_fault();
358 else
359 advance(regs);
357 } 360 }
358} 361}
359 362
diff --git a/arch/sparc64/kernel/us3_cpufreq.c b/arch/sparc64/kernel/us3_cpufreq.c
index 9080e7cd4bb0..0340041f6143 100644
--- a/arch/sparc64/kernel/us3_cpufreq.c
+++ b/arch/sparc64/kernel/us3_cpufreq.c
@@ -208,7 +208,10 @@ static int __init us3_freq_init(void)
208 impl = ((ver >> 32) & 0xffff); 208 impl = ((ver >> 32) & 0xffff);
209 209
210 if (manuf == CHEETAH_MANUF && 210 if (manuf == CHEETAH_MANUF &&
211 (impl == CHEETAH_IMPL || impl == CHEETAH_PLUS_IMPL)) { 211 (impl == CHEETAH_IMPL ||
212 impl == CHEETAH_PLUS_IMPL ||
213 impl == JAGUAR_IMPL ||
214 impl == PANTHER_IMPL)) {
212 struct cpufreq_driver *driver; 215 struct cpufreq_driver *driver;
213 216
214 ret = -ENOMEM; 217 ret = -ENOMEM;
diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S
index f47d0be39378..2af0cf0a8640 100644
--- a/arch/sparc64/kernel/vmlinux.lds.S
+++ b/arch/sparc64/kernel/vmlinux.lds.S
@@ -9,8 +9,7 @@ ENTRY(_start)
9jiffies = jiffies_64; 9jiffies = jiffies_64;
10SECTIONS 10SECTIONS
11{ 11{
12 swapper_pmd_dir = 0x0000000000402000; 12 swapper_low_pmd_dir = 0x0000000000402000;
13 empty_pg_dir = 0x0000000000403000;
14 . = 0x4000; 13 . = 0x4000;
15 .text 0x0000000000404000 : 14 .text 0x0000000000404000 :
16 { 15 {
diff --git a/arch/sparc64/lib/strncpy_from_user.S b/arch/sparc64/lib/strncpy_from_user.S
index 09cbbaa0ebf4..e1264650ca7a 100644
--- a/arch/sparc64/lib/strncpy_from_user.S
+++ b/arch/sparc64/lib/strncpy_from_user.S
@@ -125,15 +125,11 @@ __strncpy_from_user:
125 add %o2, %o3, %o0 125 add %o2, %o3, %o0
126 .size __strncpy_from_user, .-__strncpy_from_user 126 .size __strncpy_from_user, .-__strncpy_from_user
127 127
128 .section .fixup,#alloc,#execinstr
129 .align 4
1304: retl
131 mov -EFAULT, %o0
132
133 .section __ex_table,#alloc 128 .section __ex_table,#alloc
134 .align 4 129 .align 4
135 .word 60b, 4b 130 .word 60b, __retl_efault
136 .word 61b, 4b 131 .word 61b, __retl_efault
137 .word 62b, 4b 132 .word 62b, __retl_efault
138 .word 63b, 4b 133 .word 63b, __retl_efault
139 .word 64b, 4b 134 .word 64b, __retl_efault
135 .previous
diff --git a/arch/sparc64/lib/user_fixup.c b/arch/sparc64/lib/user_fixup.c
index 0278e34125db..19d1fdb17d0e 100644
--- a/arch/sparc64/lib/user_fixup.c
+++ b/arch/sparc64/lib/user_fixup.c
@@ -11,61 +11,56 @@
11 11
12/* Calculating the exact fault address when using 12/* Calculating the exact fault address when using
13 * block loads and stores can be very complicated. 13 * block loads and stores can be very complicated.
14 *
14 * Instead of trying to be clever and handling all 15 * Instead of trying to be clever and handling all
15 * of the cases, just fix things up simply here. 16 * of the cases, just fix things up simply here.
16 */ 17 */
17 18
18unsigned long copy_from_user_fixup(void *to, const void __user *from, unsigned long size) 19static unsigned long compute_size(unsigned long start, unsigned long size, unsigned long *offset)
19{ 20{
20 char *dst = to; 21 unsigned long fault_addr = current_thread_info()->fault_address;
21 const char __user *src = from; 22 unsigned long end = start + size;
22 23
23 while (size) { 24 if (fault_addr < start || fault_addr >= end) {
24 if (__get_user(*dst, src)) 25 *offset = 0;
25 break; 26 } else {
26 dst++; 27 *offset = start - fault_addr;
27 src++; 28 size = end - fault_addr;
28 size--;
29 } 29 }
30 return size;
31}
30 32
31 if (size) 33unsigned long copy_from_user_fixup(void *to, const void __user *from, unsigned long size)
32 memset(dst, 0, size); 34{
35 unsigned long offset;
36
37 size = compute_size((unsigned long) from, size, &offset);
38 if (likely(size))
39 memset(to + offset, 0, size);
33 40
34 return size; 41 return size;
35} 42}
36 43
37unsigned long copy_to_user_fixup(void __user *to, const void *from, unsigned long size) 44unsigned long copy_to_user_fixup(void __user *to, const void *from, unsigned long size)
38{ 45{
39 char __user *dst = to; 46 unsigned long offset;
40 const char *src = from;
41
42 while (size) {
43 if (__put_user(*src, dst))
44 break;
45 dst++;
46 src++;
47 size--;
48 }
49 47
50 return size; 48 return compute_size((unsigned long) to, size, &offset);
51} 49}
52 50
53unsigned long copy_in_user_fixup(void __user *to, void __user *from, unsigned long size) 51unsigned long copy_in_user_fixup(void __user *to, void __user *from, unsigned long size)
54{ 52{
55 char __user *dst = to; 53 unsigned long fault_addr = current_thread_info()->fault_address;
56 char __user *src = from; 54 unsigned long start = (unsigned long) to;
55 unsigned long end = start + size;
57 56
58 while (size) { 57 if (fault_addr >= start && fault_addr < end)
59 char tmp; 58 return end - fault_addr;
60 59
61 if (__get_user(tmp, src)) 60 start = (unsigned long) from;
62 break; 61 end = start + size;
63 if (__put_user(tmp, dst)) 62 if (fault_addr >= start && fault_addr < end)
64 break; 63 return end - fault_addr;
65 dst++;
66 src++;
67 size--;
68 }
69 64
70 return size; 65 return size;
71} 66}
diff --git a/arch/sparc64/mm/Makefile b/arch/sparc64/mm/Makefile
index cda87333a77b..9d0960e69f48 100644
--- a/arch/sparc64/mm/Makefile
+++ b/arch/sparc64/mm/Makefile
@@ -5,6 +5,6 @@
5EXTRA_AFLAGS := -ansi 5EXTRA_AFLAGS := -ansi
6EXTRA_CFLAGS := -Werror 6EXTRA_CFLAGS := -Werror
7 7
8obj-y := ultra.o tlb.o fault.o init.o generic.o extable.o 8obj-y := ultra.o tlb.o fault.o init.o generic.o
9 9
10obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o 10obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
diff --git a/arch/sparc64/mm/extable.c b/arch/sparc64/mm/extable.c
deleted file mode 100644
index ec334297ff4f..000000000000
--- a/arch/sparc64/mm/extable.c
+++ /dev/null
@@ -1,80 +0,0 @@
1/*
2 * linux/arch/sparc64/mm/extable.c
3 */
4
5#include <linux/config.h>
6#include <linux/module.h>
7#include <asm/uaccess.h>
8
9extern const struct exception_table_entry __start___ex_table[];
10extern const struct exception_table_entry __stop___ex_table[];
11
12void sort_extable(struct exception_table_entry *start,
13 struct exception_table_entry *finish)
14{
15}
16
17/* Caller knows they are in a range if ret->fixup == 0 */
18const struct exception_table_entry *
19search_extable(const struct exception_table_entry *start,
20 const struct exception_table_entry *last,
21 unsigned long value)
22{
23 const struct exception_table_entry *walk;
24
25 /* Single insn entries are encoded as:
26 * word 1: insn address
27 * word 2: fixup code address
28 *
29 * Range entries are encoded as:
30 * word 1: first insn address
31 * word 2: 0
32 * word 3: last insn address + 4 bytes
33 * word 4: fixup code address
34 *
35 * See asm/uaccess.h for more details.
36 */
37
38 /* 1. Try to find an exact match. */
39 for (walk = start; walk <= last; walk++) {
40 if (walk->fixup == 0) {
41 /* A range entry, skip both parts. */
42 walk++;
43 continue;
44 }
45
46 if (walk->insn == value)
47 return walk;
48 }
49
50 /* 2. Try to find a range match. */
51 for (walk = start; walk <= (last - 1); walk++) {
52 if (walk->fixup)
53 continue;
54
55 if (walk[0].insn <= value && walk[1].insn > value)
56 return walk;
57
58 walk++;
59 }
60
61 return NULL;
62}
63
64/* Special extable search, which handles ranges. Returns fixup */
65unsigned long search_extables_range(unsigned long addr, unsigned long *g2)
66{
67 const struct exception_table_entry *entry;
68
69 entry = search_exception_tables(addr);
70 if (!entry)
71 return 0;
72
73 /* Inside range? Fix g2 and return correct fixup */
74 if (!entry->fixup) {
75 *g2 = (addr - entry->insn) / 4;
76 return (entry + 1)->fixup;
77 }
78
79 return entry->fixup;
80}
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index db1e3310e907..31fbc67719a1 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -32,8 +32,6 @@
32 32
33#define ELEMENTS(arr) (sizeof (arr)/sizeof (arr[0])) 33#define ELEMENTS(arr) (sizeof (arr)/sizeof (arr[0]))
34 34
35extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
36
37/* 35/*
38 * To debug kernel to catch accesses to certain virtual/physical addresses. 36 * To debug kernel to catch accesses to certain virtual/physical addresses.
39 * Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints. 37 * Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints.
@@ -71,53 +69,6 @@ void set_brkpt(unsigned long addr, unsigned char mask, int flags, int mode)
71 : "memory"); 69 : "memory");
72} 70}
73 71
74/* Nice, simple, prom library does all the sweating for us. ;) */
75unsigned long __init prom_probe_memory (void)
76{
77 register struct linux_mlist_p1275 *mlist;
78 register unsigned long bytes, base_paddr, tally;
79 register int i;
80
81 i = 0;
82 mlist = *prom_meminfo()->p1275_available;
83 bytes = tally = mlist->num_bytes;
84 base_paddr = mlist->start_adr;
85
86 sp_banks[0].base_addr = base_paddr;
87 sp_banks[0].num_bytes = bytes;
88
89 while (mlist->theres_more != (void *) 0) {
90 i++;
91 mlist = mlist->theres_more;
92 bytes = mlist->num_bytes;
93 tally += bytes;
94 if (i >= SPARC_PHYS_BANKS-1) {
95 printk ("The machine has more banks than "
96 "this kernel can support\n"
97 "Increase the SPARC_PHYS_BANKS "
98 "setting (currently %d)\n",
99 SPARC_PHYS_BANKS);
100 i = SPARC_PHYS_BANKS-1;
101 break;
102 }
103
104 sp_banks[i].base_addr = mlist->start_adr;
105 sp_banks[i].num_bytes = mlist->num_bytes;
106 }
107
108 i++;
109 sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
110 sp_banks[i].num_bytes = 0;
111
112 /* Now mask all bank sizes on a page boundary, it is all we can
113 * use anyways.
114 */
115 for (i = 0; sp_banks[i].num_bytes != 0; i++)
116 sp_banks[i].num_bytes &= PAGE_MASK;
117
118 return tally;
119}
120
121static void __kprobes unhandled_fault(unsigned long address, 72static void __kprobes unhandled_fault(unsigned long address,
122 struct task_struct *tsk, 73 struct task_struct *tsk,
123 struct pt_regs *regs) 74 struct pt_regs *regs)
@@ -242,7 +193,6 @@ static unsigned int get_fault_insn(struct pt_regs *regs, unsigned int insn)
242static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code, 193static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code,
243 unsigned int insn, unsigned long address) 194 unsigned int insn, unsigned long address)
244{ 195{
245 unsigned long g2;
246 unsigned char asi = ASI_P; 196 unsigned char asi = ASI_P;
247 197
248 if ((!insn) && (regs->tstate & TSTATE_PRIV)) 198 if ((!insn) && (regs->tstate & TSTATE_PRIV))
@@ -273,11 +223,9 @@ static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code,
273 } 223 }
274 } 224 }
275 225
276 g2 = regs->u_regs[UREG_G2];
277
278 /* Is this in ex_table? */ 226 /* Is this in ex_table? */
279 if (regs->tstate & TSTATE_PRIV) { 227 if (regs->tstate & TSTATE_PRIV) {
280 unsigned long fixup; 228 const struct exception_table_entry *entry;
281 229
282 if (asi == ASI_P && (insn & 0xc0800000) == 0xc0800000) { 230 if (asi == ASI_P && (insn & 0xc0800000) == 0xc0800000) {
283 if (insn & 0x2000) 231 if (insn & 0x2000)
@@ -288,10 +236,9 @@ static void do_kernel_fault(struct pt_regs *regs, int si_code, int fault_code,
288 236
289 /* Look in asi.h: All _S asis have LS bit set */ 237 /* Look in asi.h: All _S asis have LS bit set */
290 if ((asi & 0x1) && 238 if ((asi & 0x1) &&
291 (fixup = search_extables_range(regs->tpc, &g2))) { 239 (entry = search_exception_tables(regs->tpc))) {
292 regs->tpc = fixup; 240 regs->tpc = entry->fixup;
293 regs->tnpc = regs->tpc + 4; 241 regs->tnpc = regs->tpc + 4;
294 regs->u_regs[UREG_G2] = g2;
295 return; 242 return;
296 } 243 }
297 } else { 244 } else {
@@ -461,7 +408,7 @@ good_area:
461 } 408 }
462 409
463 up_read(&mm->mmap_sem); 410 up_read(&mm->mmap_sem);
464 goto fault_done; 411 return;
465 412
466 /* 413 /*
467 * Something tried to access memory that isn't in our memory map.. 414 * Something tried to access memory that isn't in our memory map..
@@ -473,8 +420,7 @@ bad_area:
473 420
474handle_kernel_fault: 421handle_kernel_fault:
475 do_kernel_fault(regs, si_code, fault_code, insn, address); 422 do_kernel_fault(regs, si_code, fault_code, insn, address);
476 423 return;
477 goto fault_done;
478 424
479/* 425/*
480 * We ran out of memory, or some other thing happened to us that made 426 * We ran out of memory, or some other thing happened to us that made
@@ -505,9 +451,4 @@ do_sigbus:
505 /* Kernel mode? Handle exceptions or die */ 451 /* Kernel mode? Handle exceptions or die */
506 if (regs->tstate & TSTATE_PRIV) 452 if (regs->tstate & TSTATE_PRIV)
507 goto handle_kernel_fault; 453 goto handle_kernel_fault;
508
509fault_done:
510 /* These values are no longer needed, clear them. */
511 set_thread_fault_code(0);
512 current_thread_info()->fault_address = 0;
513} 454}
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index fdb1ebb308c9..5db50524f20d 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -20,6 +20,8 @@
20#include <linux/fs.h> 20#include <linux/fs.h>
21#include <linux/seq_file.h> 21#include <linux/seq_file.h>
22#include <linux/kprobes.h> 22#include <linux/kprobes.h>
23#include <linux/cache.h>
24#include <linux/sort.h>
23 25
24#include <asm/head.h> 26#include <asm/head.h>
25#include <asm/system.h> 27#include <asm/system.h>
@@ -40,24 +42,80 @@
40 42
41extern void device_scan(void); 43extern void device_scan(void);
42 44
43struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; 45#define MAX_BANKS 32
44 46
45unsigned long *sparc64_valid_addr_bitmap; 47static struct linux_prom64_registers pavail[MAX_BANKS] __initdata;
48static struct linux_prom64_registers pavail_rescan[MAX_BANKS] __initdata;
49static int pavail_ents __initdata;
50static int pavail_rescan_ents __initdata;
51
52static int cmp_p64(const void *a, const void *b)
53{
54 const struct linux_prom64_registers *x = a, *y = b;
55
56 if (x->phys_addr > y->phys_addr)
57 return 1;
58 if (x->phys_addr < y->phys_addr)
59 return -1;
60 return 0;
61}
62
63static void __init read_obp_memory(const char *property,
64 struct linux_prom64_registers *regs,
65 int *num_ents)
66{
67 int node = prom_finddevice("/memory");
68 int prop_size = prom_getproplen(node, property);
69 int ents, ret, i;
70
71 ents = prop_size / sizeof(struct linux_prom64_registers);
72 if (ents > MAX_BANKS) {
73 prom_printf("The machine has more %s property entries than "
74 "this kernel can support (%d).\n",
75 property, MAX_BANKS);
76 prom_halt();
77 }
78
79 ret = prom_getproperty(node, property, (char *) regs, prop_size);
80 if (ret == -1) {
81 prom_printf("Couldn't get %s property from /memory.\n");
82 prom_halt();
83 }
84
85 *num_ents = ents;
86
87 /* Sanitize what we got from the firmware, by page aligning
88 * everything.
89 */
90 for (i = 0; i < ents; i++) {
91 unsigned long base, size;
92
93 base = regs[i].phys_addr;
94 size = regs[i].reg_size;
95
96 size &= PAGE_MASK;
97 if (base & ~PAGE_MASK) {
98 unsigned long new_base = PAGE_ALIGN(base);
99
100 size -= new_base - base;
101 if ((long) size < 0L)
102 size = 0UL;
103 base = new_base;
104 }
105 regs[i].phys_addr = base;
106 regs[i].reg_size = size;
107 }
108 sort(regs, ents, sizeof(struct linux_prom64_registers),
109 cmp_p64, NULL);
110}
111
112unsigned long *sparc64_valid_addr_bitmap __read_mostly;
46 113
47/* Ugly, but necessary... -DaveM */ 114/* Ugly, but necessary... -DaveM */
48unsigned long phys_base; 115unsigned long phys_base __read_mostly;
49unsigned long kern_base; 116unsigned long kern_base __read_mostly;
50unsigned long kern_size; 117unsigned long kern_size __read_mostly;
51unsigned long pfn_base; 118unsigned long pfn_base __read_mostly;
52
53/* This is even uglier. We have a problem where the kernel may not be
54 * located at phys_base. However, initial __alloc_bootmem() calls need to
55 * be adjusted to be within the 4-8Megs that the kernel is mapped to, else
56 * those page mappings wont work. Things are ok after inherit_prom_mappings
57 * is called though. Dave says he'll clean this up some other time.
58 * -- BenC
59 */
60static unsigned long bootmap_base;
61 119
62/* get_new_mmu_context() uses "cache + 1". */ 120/* get_new_mmu_context() uses "cache + 1". */
63DEFINE_SPINLOCK(ctx_alloc_lock); 121DEFINE_SPINLOCK(ctx_alloc_lock);
@@ -73,7 +131,7 @@ extern unsigned long sparc_ramdisk_image64;
73extern unsigned int sparc_ramdisk_image; 131extern unsigned int sparc_ramdisk_image;
74extern unsigned int sparc_ramdisk_size; 132extern unsigned int sparc_ramdisk_size;
75 133
76struct page *mem_map_zero; 134struct page *mem_map_zero __read_mostly;
77 135
78int bigkernel = 0; 136int bigkernel = 0;
79 137
@@ -179,8 +237,6 @@ static __inline__ void clear_dcache_dirty_cpu(struct page *page, unsigned long c
179 : "g1", "g7"); 237 : "g1", "g7");
180} 238}
181 239
182extern void __update_mmu_cache(unsigned long mmu_context_hw, unsigned long address, pte_t pte, int code);
183
184void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte) 240void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
185{ 241{
186 struct page *page; 242 struct page *page;
@@ -207,10 +263,6 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t p
207 263
208 put_cpu(); 264 put_cpu();
209 } 265 }
210
211 if (get_thread_fault_code())
212 __update_mmu_cache(CTX_NRBITS(vma->vm_mm->context),
213 address, pte, get_thread_fault_code());
214} 266}
215 267
216void flush_dcache_page(struct page *page) 268void flush_dcache_page(struct page *page)
@@ -309,6 +361,7 @@ struct linux_prom_translation {
309 unsigned long size; 361 unsigned long size;
310 unsigned long data; 362 unsigned long data;
311}; 363};
364static struct linux_prom_translation prom_trans[512] __initdata;
312 365
313extern unsigned long prom_boot_page; 366extern unsigned long prom_boot_page;
314extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle); 367extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle);
@@ -318,14 +371,63 @@ extern void register_prom_callbacks(void);
318/* Exported for SMP bootup purposes. */ 371/* Exported for SMP bootup purposes. */
319unsigned long kern_locked_tte_data; 372unsigned long kern_locked_tte_data;
320 373
321void __init early_pgtable_allocfail(char *type) 374/* Exported for kernel TLB miss handling in ktlb.S */
375unsigned long prom_pmd_phys __read_mostly;
376unsigned int swapper_pgd_zero __read_mostly;
377
378/* Allocate power-of-2 aligned chunks from the end of the
379 * kernel image. Return physical address.
380 */
381static inline unsigned long early_alloc_phys(unsigned long size)
322{ 382{
323 prom_printf("inherit_prom_mappings: Cannot alloc kernel %s.\n", type); 383 unsigned long base;
324 prom_halt(); 384
385 BUILD_BUG_ON(size & (size - 1));
386
387 kern_size = (kern_size + (size - 1)) & ~(size - 1);
388 base = kern_base + kern_size;
389 kern_size += size;
390
391 return base;
392}
393
394static inline unsigned long load_phys32(unsigned long pa)
395{
396 unsigned long val;
397
398 __asm__ __volatile__("lduwa [%1] %2, %0"
399 : "=&r" (val)
400 : "r" (pa), "i" (ASI_PHYS_USE_EC));
401
402 return val;
403}
404
405static inline unsigned long load_phys64(unsigned long pa)
406{
407 unsigned long val;
408
409 __asm__ __volatile__("ldxa [%1] %2, %0"
410 : "=&r" (val)
411 : "r" (pa), "i" (ASI_PHYS_USE_EC));
412
413 return val;
414}
415
416static inline void store_phys32(unsigned long pa, unsigned long val)
417{
418 __asm__ __volatile__("stwa %0, [%1] %2"
419 : /* no outputs */
420 : "r" (val), "r" (pa), "i" (ASI_PHYS_USE_EC));
421}
422
423static inline void store_phys64(unsigned long pa, unsigned long val)
424{
425 __asm__ __volatile__("stxa %0, [%1] %2"
426 : /* no outputs */
427 : "r" (val), "r" (pa), "i" (ASI_PHYS_USE_EC));
325} 428}
326 429
327#define BASE_PAGE_SIZE 8192 430#define BASE_PAGE_SIZE 8192
328static pmd_t *prompmd;
329 431
330/* 432/*
331 * Translate PROM's mapping we capture at boot time into physical address. 433 * Translate PROM's mapping we capture at boot time into physical address.
@@ -333,278 +435,172 @@ static pmd_t *prompmd;
333 */ 435 */
334unsigned long prom_virt_to_phys(unsigned long promva, int *error) 436unsigned long prom_virt_to_phys(unsigned long promva, int *error)
335{ 437{
336 pmd_t *pmdp = prompmd + ((promva >> 23) & 0x7ff); 438 unsigned long pmd_phys = (prom_pmd_phys +
337 pte_t *ptep; 439 ((promva >> 23) & 0x7ff) * sizeof(pmd_t));
440 unsigned long pte_phys;
441 pmd_t pmd_ent;
442 pte_t pte_ent;
338 unsigned long base; 443 unsigned long base;
339 444
340 if (pmd_none(*pmdp)) { 445 pmd_val(pmd_ent) = load_phys32(pmd_phys);
446 if (pmd_none(pmd_ent)) {
341 if (error) 447 if (error)
342 *error = 1; 448 *error = 1;
343 return(0); 449 return 0;
344 } 450 }
345 ptep = (pte_t *)__pmd_page(*pmdp) + ((promva >> 13) & 0x3ff); 451
346 if (!pte_present(*ptep)) { 452 pte_phys = (unsigned long)pmd_val(pmd_ent) << 11UL;
453 pte_phys += ((promva >> 13) & 0x3ff) * sizeof(pte_t);
454 pte_val(pte_ent) = load_phys64(pte_phys);
455 if (!pte_present(pte_ent)) {
347 if (error) 456 if (error)
348 *error = 1; 457 *error = 1;
349 return(0); 458 return 0;
350 } 459 }
351 if (error) { 460 if (error) {
352 *error = 0; 461 *error = 0;
353 return(pte_val(*ptep)); 462 return pte_val(pte_ent);
354 } 463 }
355 base = pte_val(*ptep) & _PAGE_PADDR; 464 base = pte_val(pte_ent) & _PAGE_PADDR;
356 return(base + (promva & (BASE_PAGE_SIZE - 1))); 465 return (base + (promva & (BASE_PAGE_SIZE - 1)));
357} 466}
358 467
359static void inherit_prom_mappings(void) 468/* The obp translations are saved based on 8k pagesize, since obp can
469 * use a mixture of pagesizes. Misses to the LOW_OBP_ADDRESS ->
470 * HI_OBP_ADDRESS range are handled in entry.S and do not use the vpte
471 * scheme (also, see rant in inherit_locked_prom_mappings()).
472 */
473static void __init build_obp_range(unsigned long start, unsigned long end, unsigned long data)
360{ 474{
361 struct linux_prom_translation *trans; 475 unsigned long vaddr;
362 unsigned long phys_page, tte_vaddr, tte_data;
363 void (*remap_func)(unsigned long, unsigned long, int);
364 pmd_t *pmdp;
365 pte_t *ptep;
366 int node, n, i, tsz;
367 extern unsigned int obp_iaddr_patch[2], obp_daddr_patch[2];
368 476
369 node = prom_finddevice("/virtual-memory"); 477 for (vaddr = start; vaddr < end; vaddr += BASE_PAGE_SIZE) {
370 n = prom_getproplen(node, "translations"); 478 unsigned long val, pte_phys, pmd_phys;
371 if (n == 0 || n == -1) { 479 pmd_t pmd_ent;
372 prom_printf("Couldn't get translation property\n"); 480 int i;
373 prom_halt();
374 }
375 n += 5 * sizeof(struct linux_prom_translation);
376 for (tsz = 1; tsz < n; tsz <<= 1)
377 /* empty */;
378 trans = __alloc_bootmem(tsz, SMP_CACHE_BYTES, bootmap_base);
379 if (trans == NULL) {
380 prom_printf("inherit_prom_mappings: Cannot alloc translations.\n");
381 prom_halt();
382 }
383 memset(trans, 0, tsz);
384 481
385 if ((n = prom_getproperty(node, "translations", (char *)trans, tsz)) == -1) { 482 pmd_phys = (prom_pmd_phys +
386 prom_printf("Couldn't get translation property\n"); 483 (((vaddr >> 23) & 0x7ff) * sizeof(pmd_t)));
387 prom_halt(); 484 pmd_val(pmd_ent) = load_phys32(pmd_phys);
388 } 485 if (pmd_none(pmd_ent)) {
389 n = n / sizeof(*trans); 486 pte_phys = early_alloc_phys(BASE_PAGE_SIZE);
390 487
391 /* 488 for (i = 0; i < BASE_PAGE_SIZE / sizeof(pte_t); i++)
392 * The obp translations are saved based on 8k pagesize, since obp can 489 store_phys64(pte_phys+i*sizeof(pte_t),0);
393 * use a mixture of pagesizes. Misses to the 0xf0000000 - 0x100000000,
394 * ie obp range, are handled in entry.S and do not use the vpte scheme
395 * (see rant in inherit_locked_prom_mappings()).
396 */
397#define OBP_PMD_SIZE 2048
398 prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, bootmap_base);
399 if (prompmd == NULL)
400 early_pgtable_allocfail("pmd");
401 memset(prompmd, 0, OBP_PMD_SIZE);
402 for (i = 0; i < n; i++) {
403 unsigned long vaddr;
404
405 if (trans[i].virt >= LOW_OBP_ADDRESS && trans[i].virt < HI_OBP_ADDRESS) {
406 for (vaddr = trans[i].virt;
407 ((vaddr < trans[i].virt + trans[i].size) &&
408 (vaddr < HI_OBP_ADDRESS));
409 vaddr += BASE_PAGE_SIZE) {
410 unsigned long val;
411
412 pmdp = prompmd + ((vaddr >> 23) & 0x7ff);
413 if (pmd_none(*pmdp)) {
414 ptep = __alloc_bootmem(BASE_PAGE_SIZE,
415 BASE_PAGE_SIZE,
416 bootmap_base);
417 if (ptep == NULL)
418 early_pgtable_allocfail("pte");
419 memset(ptep, 0, BASE_PAGE_SIZE);
420 pmd_set(pmdp, ptep);
421 }
422 ptep = (pte_t *)__pmd_page(*pmdp) +
423 ((vaddr >> 13) & 0x3ff);
424 490
425 val = trans[i].data; 491 pmd_val(pmd_ent) = pte_phys >> 11UL;
492 store_phys32(pmd_phys, pmd_val(pmd_ent));
493 }
426 494
427 /* Clear diag TTE bits. */ 495 pte_phys = (unsigned long)pmd_val(pmd_ent) << 11UL;
428 if (tlb_type == spitfire) 496 pte_phys += (((vaddr >> 13) & 0x3ff) * sizeof(pte_t));
429 val &= ~0x0003fe0000000000UL;
430 497
431 set_pte_at(&init_mm, vaddr, 498 val = data;
432 ptep, __pte(val | _PAGE_MODIFIED));
433 trans[i].data += BASE_PAGE_SIZE;
434 }
435 }
436 }
437 phys_page = __pa(prompmd);
438 obp_iaddr_patch[0] |= (phys_page >> 10);
439 obp_iaddr_patch[1] |= (phys_page & 0x3ff);
440 flushi((long)&obp_iaddr_patch[0]);
441 obp_daddr_patch[0] |= (phys_page >> 10);
442 obp_daddr_patch[1] |= (phys_page & 0x3ff);
443 flushi((long)&obp_daddr_patch[0]);
444 499
445 /* Now fixup OBP's idea about where we really are mapped. */ 500 /* Clear diag TTE bits. */
446 prom_printf("Remapping the kernel... "); 501 if (tlb_type == spitfire)
502 val &= ~0x0003fe0000000000UL;
447 503
448 /* Spitfire Errata #32 workaround */ 504 store_phys64(pte_phys, val | _PAGE_MODIFIED);
449 /* NOTE: Using plain zero for the context value is
450 * correct here, we are not using the Linux trap
451 * tables yet so we should not use the special
452 * UltraSPARC-III+ page size encodings yet.
453 */
454 __asm__ __volatile__("stxa %0, [%1] %2\n\t"
455 "flush %%g6"
456 : /* No outputs */
457 : "r" (0), "r" (PRIMARY_CONTEXT), "i" (ASI_DMMU));
458
459 switch (tlb_type) {
460 default:
461 case spitfire:
462 phys_page = spitfire_get_dtlb_data(sparc64_highest_locked_tlbent());
463 break;
464
465 case cheetah:
466 case cheetah_plus:
467 phys_page = cheetah_get_litlb_data(sparc64_highest_locked_tlbent());
468 break;
469 };
470
471 phys_page &= _PAGE_PADDR;
472 phys_page += ((unsigned long)&prom_boot_page -
473 (unsigned long)KERNBASE);
474 505
475 if (tlb_type == spitfire) { 506 data += BASE_PAGE_SIZE;
476 /* Lock this into i/d tlb entry 59 */
477 __asm__ __volatile__(
478 "stxa %%g0, [%2] %3\n\t"
479 "stxa %0, [%1] %4\n\t"
480 "membar #Sync\n\t"
481 "flush %%g6\n\t"
482 "stxa %%g0, [%2] %5\n\t"
483 "stxa %0, [%1] %6\n\t"
484 "membar #Sync\n\t"
485 "flush %%g6"
486 : : "r" (phys_page | _PAGE_VALID | _PAGE_SZ8K | _PAGE_CP |
487 _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W),
488 "r" (59 << 3), "r" (TLB_TAG_ACCESS),
489 "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS),
490 "i" (ASI_IMMU), "i" (ASI_ITLB_DATA_ACCESS)
491 : "memory");
492 } else if (tlb_type == cheetah || tlb_type == cheetah_plus) {
493 /* Lock this into i/d tlb-0 entry 11 */
494 __asm__ __volatile__(
495 "stxa %%g0, [%2] %3\n\t"
496 "stxa %0, [%1] %4\n\t"
497 "membar #Sync\n\t"
498 "flush %%g6\n\t"
499 "stxa %%g0, [%2] %5\n\t"
500 "stxa %0, [%1] %6\n\t"
501 "membar #Sync\n\t"
502 "flush %%g6"
503 : : "r" (phys_page | _PAGE_VALID | _PAGE_SZ8K | _PAGE_CP |
504 _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W),
505 "r" ((0 << 16) | (11 << 3)), "r" (TLB_TAG_ACCESS),
506 "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS),
507 "i" (ASI_IMMU), "i" (ASI_ITLB_DATA_ACCESS)
508 : "memory");
509 } else {
510 /* Implement me :-) */
511 BUG();
512 } 507 }
508}
513 509
514 tte_vaddr = (unsigned long) KERNBASE; 510static inline int in_obp_range(unsigned long vaddr)
511{
512 return (vaddr >= LOW_OBP_ADDRESS &&
513 vaddr < HI_OBP_ADDRESS);
514}
515 515
516 /* Spitfire Errata #32 workaround */ 516#define OBP_PMD_SIZE 2048
517 /* NOTE: Using plain zero for the context value is 517static void __init build_obp_pgtable(int prom_trans_ents)
518 * correct here, we are not using the Linux trap 518{
519 * tables yet so we should not use the special 519 unsigned long i;
520 * UltraSPARC-III+ page size encodings yet.
521 */
522 __asm__ __volatile__("stxa %0, [%1] %2\n\t"
523 "flush %%g6"
524 : /* No outputs */
525 : "r" (0),
526 "r" (PRIMARY_CONTEXT), "i" (ASI_DMMU));
527
528 if (tlb_type == spitfire)
529 tte_data = spitfire_get_dtlb_data(sparc64_highest_locked_tlbent());
530 else
531 tte_data = cheetah_get_ldtlb_data(sparc64_highest_locked_tlbent());
532 520
533 kern_locked_tte_data = tte_data; 521 prom_pmd_phys = early_alloc_phys(OBP_PMD_SIZE);
522 for (i = 0; i < OBP_PMD_SIZE; i += 4)
523 store_phys32(prom_pmd_phys + i, 0);
534 524
535 remap_func = (void *) ((unsigned long) &prom_remap - 525 for (i = 0; i < prom_trans_ents; i++) {
536 (unsigned long) &prom_boot_page); 526 unsigned long start, end;
537 527
528 if (!in_obp_range(prom_trans[i].virt))
529 continue;
538 530
539 /* Spitfire Errata #32 workaround */ 531 start = prom_trans[i].virt;
540 /* NOTE: Using plain zero for the context value is 532 end = start + prom_trans[i].size;
541 * correct here, we are not using the Linux trap 533 if (end > HI_OBP_ADDRESS)
542 * tables yet so we should not use the special 534 end = HI_OBP_ADDRESS;
543 * UltraSPARC-III+ page size encodings yet. 535
544 */ 536 build_obp_range(start, end, prom_trans[i].data);
545 __asm__ __volatile__("stxa %0, [%1] %2\n\t"
546 "flush %%g6"
547 : /* No outputs */
548 : "r" (0),
549 "r" (PRIMARY_CONTEXT), "i" (ASI_DMMU));
550
551 remap_func((tlb_type == spitfire ?
552 (spitfire_get_dtlb_data(sparc64_highest_locked_tlbent()) & _PAGE_PADDR) :
553 (cheetah_get_litlb_data(sparc64_highest_locked_tlbent()) & _PAGE_PADDR)),
554 (unsigned long) KERNBASE,
555 prom_get_mmu_ihandle());
556
557 if (bigkernel)
558 remap_func(((tte_data + 0x400000) & _PAGE_PADDR),
559 (unsigned long) KERNBASE + 0x400000, prom_get_mmu_ihandle());
560
561 /* Flush out that temporary mapping. */
562 spitfire_flush_dtlb_nucleus_page(0x0);
563 spitfire_flush_itlb_nucleus_page(0x0);
564
565 /* Now lock us back into the TLBs via OBP. */
566 prom_dtlb_load(sparc64_highest_locked_tlbent(), tte_data, tte_vaddr);
567 prom_itlb_load(sparc64_highest_locked_tlbent(), tte_data, tte_vaddr);
568 if (bigkernel) {
569 prom_dtlb_load(sparc64_highest_locked_tlbent()-1, tte_data + 0x400000,
570 tte_vaddr + 0x400000);
571 prom_itlb_load(sparc64_highest_locked_tlbent()-1, tte_data + 0x400000,
572 tte_vaddr + 0x400000);
573 } 537 }
538}
539
540/* Read OBP translations property into 'prom_trans[]'.
541 * Return the number of entries.
542 */
543static int __init read_obp_translations(void)
544{
545 int n, node;
574 546
575 /* Re-read translations property. */ 547 node = prom_finddevice("/virtual-memory");
576 if ((n = prom_getproperty(node, "translations", (char *)trans, tsz)) == -1) { 548 n = prom_getproplen(node, "translations");
577 prom_printf("Couldn't get translation property\n"); 549 if (unlikely(n == 0 || n == -1)) {
550 prom_printf("prom_mappings: Couldn't get size.\n");
551 prom_halt();
552 }
553 if (unlikely(n > sizeof(prom_trans))) {
554 prom_printf("prom_mappings: Size %Zd is too big.\n", n);
578 prom_halt(); 555 prom_halt();
579 } 556 }
580 n = n / sizeof(*trans);
581 557
582 for (i = 0; i < n; i++) { 558 if ((n = prom_getproperty(node, "translations",
583 unsigned long vaddr = trans[i].virt; 559 (char *)&prom_trans[0],
584 unsigned long size = trans[i].size; 560 sizeof(prom_trans))) == -1) {
561 prom_printf("prom_mappings: Couldn't get property.\n");
562 prom_halt();
563 }
564 n = n / sizeof(struct linux_prom_translation);
565 return n;
566}
585 567
586 if (vaddr < 0xf0000000UL) { 568static void __init remap_kernel(void)
587 unsigned long avoid_start = (unsigned long) KERNBASE; 569{
588 unsigned long avoid_end = avoid_start + (4 * 1024 * 1024); 570 unsigned long phys_page, tte_vaddr, tte_data;
571 int tlb_ent = sparc64_highest_locked_tlbent();
589 572
590 if (bigkernel) 573 tte_vaddr = (unsigned long) KERNBASE;
591 avoid_end += (4 * 1024 * 1024); 574 phys_page = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
592 if (vaddr < avoid_start) { 575 tte_data = (phys_page | (_PAGE_VALID | _PAGE_SZ4MB |
593 unsigned long top = vaddr + size; 576 _PAGE_CP | _PAGE_CV | _PAGE_P |
577 _PAGE_L | _PAGE_W));
594 578
595 if (top > avoid_start) 579 kern_locked_tte_data = tte_data;
596 top = avoid_start;
597 prom_unmap(top - vaddr, vaddr);
598 }
599 if ((vaddr + size) > avoid_end) {
600 unsigned long bottom = vaddr;
601 580
602 if (bottom < avoid_end) 581 /* Now lock us into the TLBs via OBP. */
603 bottom = avoid_end; 582 prom_dtlb_load(tlb_ent, tte_data, tte_vaddr);
604 prom_unmap((vaddr + size) - bottom, bottom); 583 prom_itlb_load(tlb_ent, tte_data, tte_vaddr);
605 } 584 if (bigkernel) {
606 } 585 prom_dtlb_load(tlb_ent - 1,
586 tte_data + 0x400000,
587 tte_vaddr + 0x400000);
588 prom_itlb_load(tlb_ent - 1,
589 tte_data + 0x400000,
590 tte_vaddr + 0x400000);
607 } 591 }
592}
593
594static void __init inherit_prom_mappings(void)
595{
596 int n;
597
598 n = read_obp_translations();
599 build_obp_pgtable(n);
600
601 /* Now fixup OBP's idea about where we really are mapped. */
602 prom_printf("Remapping the kernel... ");
603 remap_kernel();
608 604
609 prom_printf("done.\n"); 605 prom_printf("done.\n");
610 606
@@ -1276,14 +1272,14 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
1276 int i; 1272 int i;
1277 1273
1278#ifdef CONFIG_DEBUG_BOOTMEM 1274#ifdef CONFIG_DEBUG_BOOTMEM
1279 prom_printf("bootmem_init: Scan sp_banks, "); 1275 prom_printf("bootmem_init: Scan pavail, ");
1280#endif 1276#endif
1281 1277
1282 bytes_avail = 0UL; 1278 bytes_avail = 0UL;
1283 for (i = 0; sp_banks[i].num_bytes != 0; i++) { 1279 for (i = 0; i < pavail_ents; i++) {
1284 end_of_phys_memory = sp_banks[i].base_addr + 1280 end_of_phys_memory = pavail[i].phys_addr +
1285 sp_banks[i].num_bytes; 1281 pavail[i].reg_size;
1286 bytes_avail += sp_banks[i].num_bytes; 1282 bytes_avail += pavail[i].reg_size;
1287 if (cmdline_memory_size) { 1283 if (cmdline_memory_size) {
1288 if (bytes_avail > cmdline_memory_size) { 1284 if (bytes_avail > cmdline_memory_size) {
1289 unsigned long slack = bytes_avail - cmdline_memory_size; 1285 unsigned long slack = bytes_avail - cmdline_memory_size;
@@ -1291,12 +1287,15 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
1291 bytes_avail -= slack; 1287 bytes_avail -= slack;
1292 end_of_phys_memory -= slack; 1288 end_of_phys_memory -= slack;
1293 1289
1294 sp_banks[i].num_bytes -= slack; 1290 pavail[i].reg_size -= slack;
1295 if (sp_banks[i].num_bytes == 0) { 1291 if ((long)pavail[i].reg_size <= 0L) {
1296 sp_banks[i].base_addr = 0xdeadbeef; 1292 pavail[i].phys_addr = 0xdeadbeefUL;
1293 pavail[i].reg_size = 0UL;
1294 pavail_ents = i;
1297 } else { 1295 } else {
1298 sp_banks[i+1].num_bytes = 0; 1296 pavail[i+1].reg_size = 0Ul;
1299 sp_banks[i+1].base_addr = 0xdeadbeef; 1297 pavail[i+1].phys_addr = 0xdeadbeefUL;
1298 pavail_ents = i + 1;
1300 } 1299 }
1301 break; 1300 break;
1302 } 1301 }
@@ -1347,17 +1346,15 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
1347#endif 1346#endif
1348 bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap_pfn, pfn_base, end_pfn); 1347 bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap_pfn, pfn_base, end_pfn);
1349 1348
1350 bootmap_base = bootmap_pfn << PAGE_SHIFT;
1351
1352 /* Now register the available physical memory with the 1349 /* Now register the available physical memory with the
1353 * allocator. 1350 * allocator.
1354 */ 1351 */
1355 for (i = 0; sp_banks[i].num_bytes != 0; i++) { 1352 for (i = 0; i < pavail_ents; i++) {
1356#ifdef CONFIG_DEBUG_BOOTMEM 1353#ifdef CONFIG_DEBUG_BOOTMEM
1357 prom_printf("free_bootmem(sp_banks:%d): base[%lx] size[%lx]\n", 1354 prom_printf("free_bootmem(pavail:%d): base[%lx] size[%lx]\n",
1358 i, sp_banks[i].base_addr, sp_banks[i].num_bytes); 1355 i, pavail[i].phys_addr, pavail[i].reg_size);
1359#endif 1356#endif
1360 free_bootmem(sp_banks[i].base_addr, sp_banks[i].num_bytes); 1357 free_bootmem(pavail[i].phys_addr, pavail[i].reg_size);
1361 } 1358 }
1362 1359
1363#ifdef CONFIG_BLK_DEV_INITRD 1360#ifdef CONFIG_BLK_DEV_INITRD
@@ -1398,120 +1395,167 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
1398 return end_pfn; 1395 return end_pfn;
1399} 1396}
1400 1397
1398#ifdef CONFIG_DEBUG_PAGEALLOC
1399static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend, pgprot_t prot)
1400{
1401 unsigned long vstart = PAGE_OFFSET + pstart;
1402 unsigned long vend = PAGE_OFFSET + pend;
1403 unsigned long alloc_bytes = 0UL;
1404
1405 if ((vstart & ~PAGE_MASK) || (vend & ~PAGE_MASK)) {
1406 prom_printf("kernel_map: Unaligned physmem[%lx:%lx]\n",
1407 vstart, vend);
1408 prom_halt();
1409 }
1410
1411 while (vstart < vend) {
1412 unsigned long this_end, paddr = __pa(vstart);
1413 pgd_t *pgd = pgd_offset_k(vstart);
1414 pud_t *pud;
1415 pmd_t *pmd;
1416 pte_t *pte;
1417
1418 pud = pud_offset(pgd, vstart);
1419 if (pud_none(*pud)) {
1420 pmd_t *new;
1421
1422 new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
1423 alloc_bytes += PAGE_SIZE;
1424 pud_populate(&init_mm, pud, new);
1425 }
1426
1427 pmd = pmd_offset(pud, vstart);
1428 if (!pmd_present(*pmd)) {
1429 pte_t *new;
1430
1431 new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
1432 alloc_bytes += PAGE_SIZE;
1433 pmd_populate_kernel(&init_mm, pmd, new);
1434 }
1435
1436 pte = pte_offset_kernel(pmd, vstart);
1437 this_end = (vstart + PMD_SIZE) & PMD_MASK;
1438 if (this_end > vend)
1439 this_end = vend;
1440
1441 while (vstart < this_end) {
1442 pte_val(*pte) = (paddr | pgprot_val(prot));
1443
1444 vstart += PAGE_SIZE;
1445 paddr += PAGE_SIZE;
1446 pte++;
1447 }
1448 }
1449
1450 return alloc_bytes;
1451}
1452
1453static struct linux_prom64_registers pall[MAX_BANKS] __initdata;
1454static int pall_ents __initdata;
1455
1456extern unsigned int kvmap_linear_patch[1];
1457
1458static void __init kernel_physical_mapping_init(void)
1459{
1460 unsigned long i, mem_alloced = 0UL;
1461
1462 read_obp_memory("reg", &pall[0], &pall_ents);
1463
1464 for (i = 0; i < pall_ents; i++) {
1465 unsigned long phys_start, phys_end;
1466
1467 phys_start = pall[i].phys_addr;
1468 phys_end = phys_start + pall[i].reg_size;
1469 mem_alloced += kernel_map_range(phys_start, phys_end,
1470 PAGE_KERNEL);
1471 }
1472
1473 printk("Allocated %ld bytes for kernel page tables.\n",
1474 mem_alloced);
1475
1476 kvmap_linear_patch[0] = 0x01000000; /* nop */
1477 flushi(&kvmap_linear_patch[0]);
1478
1479 __flush_tlb_all();
1480}
1481
1482void kernel_map_pages(struct page *page, int numpages, int enable)
1483{
1484 unsigned long phys_start = page_to_pfn(page) << PAGE_SHIFT;
1485 unsigned long phys_end = phys_start + (numpages * PAGE_SIZE);
1486
1487 kernel_map_range(phys_start, phys_end,
1488 (enable ? PAGE_KERNEL : __pgprot(0)));
1489
1490 /* we should perform an IPI and flush all tlbs,
1491 * but that can deadlock->flush only current cpu.
1492 */
1493 __flush_tlb_kernel_range(PAGE_OFFSET + phys_start,
1494 PAGE_OFFSET + phys_end);
1495}
1496#endif
1497
1498unsigned long __init find_ecache_flush_span(unsigned long size)
1499{
1500 int i;
1501
1502 for (i = 0; i < pavail_ents; i++) {
1503 if (pavail[i].reg_size >= size)
1504 return pavail[i].phys_addr;
1505 }
1506
1507 return ~0UL;
1508}
1509
1401/* paging_init() sets up the page tables */ 1510/* paging_init() sets up the page tables */
1402 1511
1403extern void cheetah_ecache_flush_init(void); 1512extern void cheetah_ecache_flush_init(void);
1404 1513
1405static unsigned long last_valid_pfn; 1514static unsigned long last_valid_pfn;
1515pgd_t swapper_pg_dir[2048];
1406 1516
1407void __init paging_init(void) 1517void __init paging_init(void)
1408{ 1518{
1409 extern pmd_t swapper_pmd_dir[1024]; 1519 unsigned long end_pfn, pages_avail, shift;
1410 extern unsigned int sparc64_vpte_patchme1[1]; 1520 unsigned long real_end, i;
1411 extern unsigned int sparc64_vpte_patchme2[1]; 1521
1412 unsigned long alias_base = kern_base + PAGE_OFFSET; 1522 /* Find available physical memory... */
1413 unsigned long second_alias_page = 0; 1523 read_obp_memory("available", &pavail[0], &pavail_ents);
1414 unsigned long pt, flags, end_pfn, pages_avail; 1524
1415 unsigned long shift = alias_base - ((unsigned long)KERNBASE); 1525 phys_base = 0xffffffffffffffffUL;
1416 unsigned long real_end; 1526 for (i = 0; i < pavail_ents; i++)
1527 phys_base = min(phys_base, pavail[i].phys_addr);
1528
1529 pfn_base = phys_base >> PAGE_SHIFT;
1530
1531 kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
1532 kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
1417 1533
1418 set_bit(0, mmu_context_bmap); 1534 set_bit(0, mmu_context_bmap);
1419 1535
1536 shift = kern_base + PAGE_OFFSET - ((unsigned long)KERNBASE);
1537
1420 real_end = (unsigned long)_end; 1538 real_end = (unsigned long)_end;
1421 if ((real_end > ((unsigned long)KERNBASE + 0x400000))) 1539 if ((real_end > ((unsigned long)KERNBASE + 0x400000)))
1422 bigkernel = 1; 1540 bigkernel = 1;
1423#ifdef CONFIG_BLK_DEV_INITRD 1541 if ((real_end > ((unsigned long)KERNBASE + 0x800000))) {
1424 if (sparc_ramdisk_image || sparc_ramdisk_image64) 1542 prom_printf("paging_init: Kernel > 8MB, too large.\n");
1425 real_end = (PAGE_ALIGN(real_end) + PAGE_ALIGN(sparc_ramdisk_size)); 1543 prom_halt();
1426#endif
1427
1428 /* We assume physical memory starts at some 4mb multiple,
1429 * if this were not true we wouldn't boot up to this point
1430 * anyways.
1431 */
1432 pt = kern_base | _PAGE_VALID | _PAGE_SZ4MB;
1433 pt |= _PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W;
1434 local_irq_save(flags);
1435 if (tlb_type == spitfire) {
1436 __asm__ __volatile__(
1437 " stxa %1, [%0] %3\n"
1438 " stxa %2, [%5] %4\n"
1439 " membar #Sync\n"
1440 " flush %%g6\n"
1441 " nop\n"
1442 " nop\n"
1443 " nop\n"
1444 : /* No outputs */
1445 : "r" (TLB_TAG_ACCESS), "r" (alias_base), "r" (pt),
1446 "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" (61 << 3)
1447 : "memory");
1448 if (real_end >= KERNBASE + 0x340000) {
1449 second_alias_page = alias_base + 0x400000;
1450 __asm__ __volatile__(
1451 " stxa %1, [%0] %3\n"
1452 " stxa %2, [%5] %4\n"
1453 " membar #Sync\n"
1454 " flush %%g6\n"
1455 " nop\n"
1456 " nop\n"
1457 " nop\n"
1458 : /* No outputs */
1459 : "r" (TLB_TAG_ACCESS), "r" (second_alias_page), "r" (pt + 0x400000),
1460 "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" (60 << 3)
1461 : "memory");
1462 }
1463 } else if (tlb_type == cheetah || tlb_type == cheetah_plus) {
1464 __asm__ __volatile__(
1465 " stxa %1, [%0] %3\n"
1466 " stxa %2, [%5] %4\n"
1467 " membar #Sync\n"
1468 " flush %%g6\n"
1469 " nop\n"
1470 " nop\n"
1471 " nop\n"
1472 : /* No outputs */
1473 : "r" (TLB_TAG_ACCESS), "r" (alias_base), "r" (pt),
1474 "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" ((0<<16) | (13<<3))
1475 : "memory");
1476 if (real_end >= KERNBASE + 0x340000) {
1477 second_alias_page = alias_base + 0x400000;
1478 __asm__ __volatile__(
1479 " stxa %1, [%0] %3\n"
1480 " stxa %2, [%5] %4\n"
1481 " membar #Sync\n"
1482 " flush %%g6\n"
1483 " nop\n"
1484 " nop\n"
1485 " nop\n"
1486 : /* No outputs */
1487 : "r" (TLB_TAG_ACCESS), "r" (second_alias_page), "r" (pt + 0x400000),
1488 "i" (ASI_DMMU), "i" (ASI_DTLB_DATA_ACCESS), "r" ((0<<16) | (12<<3))
1489 : "memory");
1490 }
1491 } 1544 }
1492 local_irq_restore(flags); 1545
1493 1546 /* Set kernel pgd to upper alias so physical page computations
1494 /* Now set kernel pgd to upper alias so physical page computations
1495 * work. 1547 * work.
1496 */ 1548 */
1497 init_mm.pgd += ((shift) / (sizeof(pgd_t))); 1549 init_mm.pgd += ((shift) / (sizeof(pgd_t)));
1498 1550
1499 memset(swapper_pmd_dir, 0, sizeof(swapper_pmd_dir)); 1551 memset(swapper_low_pmd_dir, 0, sizeof(swapper_low_pmd_dir));
1500 1552
1501 /* Now can init the kernel/bad page tables. */ 1553 /* Now can init the kernel/bad page tables. */
1502 pud_set(pud_offset(&swapper_pg_dir[0], 0), 1554 pud_set(pud_offset(&swapper_pg_dir[0], 0),
1503 swapper_pmd_dir + (shift / sizeof(pgd_t))); 1555 swapper_low_pmd_dir + (shift / sizeof(pgd_t)));
1504 1556
1505 sparc64_vpte_patchme1[0] |= 1557 swapper_pgd_zero = pgd_val(swapper_pg_dir[0]);
1506 (((unsigned long)pgd_val(init_mm.pgd[0])) >> 10);
1507 sparc64_vpte_patchme2[0] |=
1508 (((unsigned long)pgd_val(init_mm.pgd[0])) & 0x3ff);
1509 flushi((long)&sparc64_vpte_patchme1[0]);
1510 1558
1511 /* Setup bootmem... */
1512 pages_avail = 0;
1513 last_valid_pfn = end_pfn = bootmem_init(&pages_avail);
1514
1515 /* Inherit non-locked OBP mappings. */ 1559 /* Inherit non-locked OBP mappings. */
1516 inherit_prom_mappings(); 1560 inherit_prom_mappings();
1517 1561
@@ -1527,13 +1571,16 @@ void __init paging_init(void)
1527 1571
1528 inherit_locked_prom_mappings(1); 1572 inherit_locked_prom_mappings(1);
1529 1573
1530 /* We only created DTLB mapping of this stuff. */
1531 spitfire_flush_dtlb_nucleus_page(alias_base);
1532 if (second_alias_page)
1533 spitfire_flush_dtlb_nucleus_page(second_alias_page);
1534
1535 __flush_tlb_all(); 1574 __flush_tlb_all();
1536 1575
1576 /* Setup bootmem... */
1577 pages_avail = 0;
1578 last_valid_pfn = end_pfn = bootmem_init(&pages_avail);
1579
1580#ifdef CONFIG_DEBUG_PAGEALLOC
1581 kernel_physical_mapping_init();
1582#endif
1583
1537 { 1584 {
1538 unsigned long zones_size[MAX_NR_ZONES]; 1585 unsigned long zones_size[MAX_NR_ZONES];
1539 unsigned long zholes_size[MAX_NR_ZONES]; 1586 unsigned long zholes_size[MAX_NR_ZONES];
@@ -1554,128 +1601,35 @@ void __init paging_init(void)
1554 device_scan(); 1601 device_scan();
1555} 1602}
1556 1603
1557/* Ok, it seems that the prom can allocate some more memory chunks
1558 * as a side effect of some prom calls we perform during the
1559 * boot sequence. My most likely theory is that it is from the
1560 * prom_set_traptable() call, and OBP is allocating a scratchpad
1561 * for saving client program register state etc.
1562 */
1563static void __init sort_memlist(struct linux_mlist_p1275 *thislist)
1564{
1565 int swapi = 0;
1566 int i, mitr;
1567 unsigned long tmpaddr, tmpsize;
1568 unsigned long lowest;
1569
1570 for (i = 0; thislist[i].theres_more != 0; i++) {
1571 lowest = thislist[i].start_adr;
1572 for (mitr = i+1; thislist[mitr-1].theres_more != 0; mitr++)
1573 if (thislist[mitr].start_adr < lowest) {
1574 lowest = thislist[mitr].start_adr;
1575 swapi = mitr;
1576 }
1577 if (lowest == thislist[i].start_adr)
1578 continue;
1579 tmpaddr = thislist[swapi].start_adr;
1580 tmpsize = thislist[swapi].num_bytes;
1581 for (mitr = swapi; mitr > i; mitr--) {
1582 thislist[mitr].start_adr = thislist[mitr-1].start_adr;
1583 thislist[mitr].num_bytes = thislist[mitr-1].num_bytes;
1584 }
1585 thislist[i].start_adr = tmpaddr;
1586 thislist[i].num_bytes = tmpsize;
1587 }
1588}
1589
1590void __init rescan_sp_banks(void)
1591{
1592 struct linux_prom64_registers memlist[64];
1593 struct linux_mlist_p1275 avail[64], *mlist;
1594 unsigned long bytes, base_paddr;
1595 int num_regs, node = prom_finddevice("/memory");
1596 int i;
1597
1598 num_regs = prom_getproperty(node, "available",
1599 (char *) memlist, sizeof(memlist));
1600 num_regs = (num_regs / sizeof(struct linux_prom64_registers));
1601 for (i = 0; i < num_regs; i++) {
1602 avail[i].start_adr = memlist[i].phys_addr;
1603 avail[i].num_bytes = memlist[i].reg_size;
1604 avail[i].theres_more = &avail[i + 1];
1605 }
1606 avail[i - 1].theres_more = NULL;
1607 sort_memlist(avail);
1608
1609 mlist = &avail[0];
1610 i = 0;
1611 bytes = mlist->num_bytes;
1612 base_paddr = mlist->start_adr;
1613
1614 sp_banks[0].base_addr = base_paddr;
1615 sp_banks[0].num_bytes = bytes;
1616
1617 while (mlist->theres_more != NULL){
1618 i++;
1619 mlist = mlist->theres_more;
1620 bytes = mlist->num_bytes;
1621 if (i >= SPARC_PHYS_BANKS-1) {
1622 printk ("The machine has more banks than "
1623 "this kernel can support\n"
1624 "Increase the SPARC_PHYS_BANKS "
1625 "setting (currently %d)\n",
1626 SPARC_PHYS_BANKS);
1627 i = SPARC_PHYS_BANKS-1;
1628 break;
1629 }
1630
1631 sp_banks[i].base_addr = mlist->start_adr;
1632 sp_banks[i].num_bytes = mlist->num_bytes;
1633 }
1634
1635 i++;
1636 sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
1637 sp_banks[i].num_bytes = 0;
1638
1639 for (i = 0; sp_banks[i].num_bytes != 0; i++)
1640 sp_banks[i].num_bytes &= PAGE_MASK;
1641}
1642
1643static void __init taint_real_pages(void) 1604static void __init taint_real_pages(void)
1644{ 1605{
1645 struct sparc_phys_banks saved_sp_banks[SPARC_PHYS_BANKS];
1646 int i; 1606 int i;
1647 1607
1648 for (i = 0; i < SPARC_PHYS_BANKS; i++) { 1608 read_obp_memory("available", &pavail_rescan[0], &pavail_rescan_ents);
1649 saved_sp_banks[i].base_addr =
1650 sp_banks[i].base_addr;
1651 saved_sp_banks[i].num_bytes =
1652 sp_banks[i].num_bytes;
1653 }
1654
1655 rescan_sp_banks();
1656 1609
1657 /* Find changes discovered in the sp_bank rescan and 1610 /* Find changes discovered in the physmem available rescan and
1658 * reserve the lost portions in the bootmem maps. 1611 * reserve the lost portions in the bootmem maps.
1659 */ 1612 */
1660 for (i = 0; saved_sp_banks[i].num_bytes; i++) { 1613 for (i = 0; i < pavail_ents; i++) {
1661 unsigned long old_start, old_end; 1614 unsigned long old_start, old_end;
1662 1615
1663 old_start = saved_sp_banks[i].base_addr; 1616 old_start = pavail[i].phys_addr;
1664 old_end = old_start + 1617 old_end = old_start +
1665 saved_sp_banks[i].num_bytes; 1618 pavail[i].reg_size;
1666 while (old_start < old_end) { 1619 while (old_start < old_end) {
1667 int n; 1620 int n;
1668 1621
1669 for (n = 0; sp_banks[n].num_bytes; n++) { 1622 for (n = 0; pavail_rescan_ents; n++) {
1670 unsigned long new_start, new_end; 1623 unsigned long new_start, new_end;
1671 1624
1672 new_start = sp_banks[n].base_addr; 1625 new_start = pavail_rescan[n].phys_addr;
1673 new_end = new_start + sp_banks[n].num_bytes; 1626 new_end = new_start +
1627 pavail_rescan[n].reg_size;
1674 1628
1675 if (new_start <= old_start && 1629 if (new_start <= old_start &&
1676 new_end >= (old_start + PAGE_SIZE)) { 1630 new_end >= (old_start + PAGE_SIZE)) {
1677 set_bit (old_start >> 22, 1631 set_bit(old_start >> 22,
1678 sparc64_valid_addr_bitmap); 1632 sparc64_valid_addr_bitmap);
1679 goto do_next_page; 1633 goto do_next_page;
1680 } 1634 }
1681 } 1635 }
@@ -1695,8 +1649,7 @@ void __init mem_init(void)
1695 1649
1696 i = last_valid_pfn >> ((22 - PAGE_SHIFT) + 6); 1650 i = last_valid_pfn >> ((22 - PAGE_SHIFT) + 6);
1697 i += 1; 1651 i += 1;
1698 sparc64_valid_addr_bitmap = (unsigned long *) 1652 sparc64_valid_addr_bitmap = (unsigned long *) alloc_bootmem(i << 3);
1699 __alloc_bootmem(i << 3, SMP_CACHE_BYTES, bootmap_base);
1700 if (sparc64_valid_addr_bitmap == NULL) { 1653 if (sparc64_valid_addr_bitmap == NULL) {
1701 prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n"); 1654 prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n");
1702 prom_halt(); 1655 prom_halt();
@@ -1749,7 +1702,7 @@ void __init mem_init(void)
1749 cheetah_ecache_flush_init(); 1702 cheetah_ecache_flush_init();
1750} 1703}
1751 1704
1752void free_initmem (void) 1705void free_initmem(void)
1753{ 1706{
1754 unsigned long addr, initend; 1707 unsigned long addr, initend;
1755 1708
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index b2ee9b53227f..058b8126c1a7 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -144,42 +144,29 @@ __flush_icache_page: /* %o0 = phys_page */
144 144
145#define DTAG_MASK 0x3 145#define DTAG_MASK 0x3
146 146
147 /* This routine is Spitfire specific so the hardcoded
148 * D-cache size and line-size are OK.
149 */
147 .align 64 150 .align 64
148 .globl __flush_dcache_page 151 .globl __flush_dcache_page
149__flush_dcache_page: /* %o0=kaddr, %o1=flush_icache */ 152__flush_dcache_page: /* %o0=kaddr, %o1=flush_icache */
150 sethi %uhi(PAGE_OFFSET), %g1 153 sethi %uhi(PAGE_OFFSET), %g1
151 sllx %g1, 32, %g1 154 sllx %g1, 32, %g1
152 sub %o0, %g1, %o0 155 sub %o0, %g1, %o0 ! physical address
153 clr %o4 156 srlx %o0, 11, %o0 ! make D-cache TAG
154 srlx %o0, 11, %o0 157 sethi %hi(1 << 14), %o2 ! D-cache size
155 sethi %hi(1 << 14), %o2 158 sub %o2, (1 << 5), %o2 ! D-cache line size
1561: ldxa [%o4] ASI_DCACHE_TAG, %o3 ! LSU Group 1591: ldxa [%o2] ASI_DCACHE_TAG, %o3 ! load D-cache TAG
157 add %o4, (1 << 5), %o4 ! IEU0 160 andcc %o3, DTAG_MASK, %g0 ! Valid?
158 ldxa [%o4] ASI_DCACHE_TAG, %g1 ! LSU Group 161 be,pn %xcc, 2f ! Nope, branch
159 add %o4, (1 << 5), %o4 ! IEU0 162 andn %o3, DTAG_MASK, %o3 ! Clear valid bits
160 ldxa [%o4] ASI_DCACHE_TAG, %g2 ! LSU Group o3 available 163 cmp %o3, %o0 ! TAG match?
161 add %o4, (1 << 5), %o4 ! IEU0 164 bne,pt %xcc, 2f ! Nope, branch
162 andn %o3, DTAG_MASK, %o3 ! IEU1 165 nop
163 ldxa [%o4] ASI_DCACHE_TAG, %g3 ! LSU Group 166 stxa %g0, [%o2] ASI_DCACHE_TAG ! Invalidate TAG
164 add %o4, (1 << 5), %o4 ! IEU0 167 membar #Sync
165 andn %g1, DTAG_MASK, %g1 ! IEU1 1682: brnz,pt %o2, 1b
166 cmp %o0, %o3 ! IEU1 Group 169 sub %o2, (1 << 5), %o2 ! D-cache line size
167 be,a,pn %xcc, dflush1 ! CTI
168 sub %o4, (4 << 5), %o4 ! IEU0 (Group)
169 cmp %o0, %g1 ! IEU1 Group
170 andn %g2, DTAG_MASK, %g2 ! IEU0
171 be,a,pn %xcc, dflush2 ! CTI
172 sub %o4, (3 << 5), %o4 ! IEU0 (Group)
173 cmp %o0, %g2 ! IEU1 Group
174 andn %g3, DTAG_MASK, %g3 ! IEU0
175 be,a,pn %xcc, dflush3 ! CTI
176 sub %o4, (2 << 5), %o4 ! IEU0 (Group)
177 cmp %o0, %g3 ! IEU1 Group
178 be,a,pn %xcc, dflush4 ! CTI
179 sub %o4, (1 << 5), %o4 ! IEU0
1802: cmp %o4, %o2 ! IEU1 Group
181 bne,pt %xcc, 1b ! CTI
182 nop ! IEU0
183 170
184 /* The I-cache does not snoop local stores so we 171 /* The I-cache does not snoop local stores so we
185 * better flush that too when necessary. 172 * better flush that too when necessary.
@@ -189,48 +176,9 @@ __flush_dcache_page: /* %o0=kaddr, %o1=flush_icache */
189 retl 176 retl
190 nop 177 nop
191 178
192dflush1:stxa %g0, [%o4] ASI_DCACHE_TAG
193 add %o4, (1 << 5), %o4
194dflush2:stxa %g0, [%o4] ASI_DCACHE_TAG
195 add %o4, (1 << 5), %o4
196dflush3:stxa %g0, [%o4] ASI_DCACHE_TAG
197 add %o4, (1 << 5), %o4
198dflush4:stxa %g0, [%o4] ASI_DCACHE_TAG
199 add %o4, (1 << 5), %o4
200 membar #Sync
201 ba,pt %xcc, 2b
202 nop
203#endif /* DCACHE_ALIASING_POSSIBLE */ 179#endif /* DCACHE_ALIASING_POSSIBLE */
204 180
205 .previous .text 181 .previous
206 .align 32
207__prefill_dtlb:
208 rdpr %pstate, %g7
209 wrpr %g7, PSTATE_IE, %pstate
210 mov TLB_TAG_ACCESS, %g1
211 stxa %o5, [%g1] ASI_DMMU
212 stxa %o2, [%g0] ASI_DTLB_DATA_IN
213 flush %g6
214 retl
215 wrpr %g7, %pstate
216__prefill_itlb:
217 rdpr %pstate, %g7
218 wrpr %g7, PSTATE_IE, %pstate
219 mov TLB_TAG_ACCESS, %g1
220 stxa %o5, [%g1] ASI_IMMU
221 stxa %o2, [%g0] ASI_ITLB_DATA_IN
222 flush %g6
223 retl
224 wrpr %g7, %pstate
225
226 .globl __update_mmu_cache
227__update_mmu_cache: /* %o0=hw_context, %o1=address, %o2=pte, %o3=fault_code */
228 srlx %o1, PAGE_SHIFT, %o1
229 andcc %o3, FAULT_CODE_DTLB, %g0
230 sllx %o1, PAGE_SHIFT, %o5
231 bne,pt %xcc, __prefill_dtlb
232 or %o5, %o0, %o5
233 ba,a,pt %xcc, __prefill_itlb
234 182
235 /* Cheetah specific versions, patched at boot time. */ 183 /* Cheetah specific versions, patched at boot time. */
236__cheetah_flush_tlb_mm: /* 18 insns */ 184__cheetah_flush_tlb_mm: /* 18 insns */
@@ -283,7 +231,7 @@ __cheetah_flush_tlb_pending: /* 26 insns */
283 wrpr %g7, 0x0, %pstate 231 wrpr %g7, 0x0, %pstate
284 232
285#ifdef DCACHE_ALIASING_POSSIBLE 233#ifdef DCACHE_ALIASING_POSSIBLE
286flush_dcpage_cheetah: /* 11 insns */ 234__cheetah_flush_dcache_page: /* 11 insns */
287 sethi %uhi(PAGE_OFFSET), %g1 235 sethi %uhi(PAGE_OFFSET), %g1
288 sllx %g1, 32, %g1 236 sllx %g1, 32, %g1
289 sub %o0, %g1, %o0 237 sub %o0, %g1, %o0
@@ -329,8 +277,8 @@ cheetah_patch_cachetlbops:
329#ifdef DCACHE_ALIASING_POSSIBLE 277#ifdef DCACHE_ALIASING_POSSIBLE
330 sethi %hi(__flush_dcache_page), %o0 278 sethi %hi(__flush_dcache_page), %o0
331 or %o0, %lo(__flush_dcache_page), %o0 279 or %o0, %lo(__flush_dcache_page), %o0
332 sethi %hi(flush_dcpage_cheetah), %o1 280 sethi %hi(__cheetah_flush_dcache_page), %o1
333 or %o1, %lo(flush_dcpage_cheetah), %o1 281 or %o1, %lo(__cheetah_flush_dcache_page), %o1
334 call cheetah_patch_one 282 call cheetah_patch_one
335 mov 11, %o2 283 mov 11, %o2
336#endif /* DCACHE_ALIASING_POSSIBLE */ 284#endif /* DCACHE_ALIASING_POSSIBLE */
diff --git a/arch/sparc64/prom/Makefile b/arch/sparc64/prom/Makefile
index 8f2420d9e9e6..3d33ed27bc27 100644
--- a/arch/sparc64/prom/Makefile
+++ b/arch/sparc64/prom/Makefile
@@ -6,5 +6,5 @@
6EXTRA_AFLAGS := -ansi 6EXTRA_AFLAGS := -ansi
7EXTRA_CFLAGS := -Werror 7EXTRA_CFLAGS := -Werror
8 8
9lib-y := bootstr.o devops.o init.o memory.o misc.o \ 9lib-y := bootstr.o devops.o init.o misc.o \
10 tree.o console.o printf.o p1275.o map.o cif.o 10 tree.o console.o printf.o p1275.o cif.o
diff --git a/arch/sparc64/prom/console.c b/arch/sparc64/prom/console.c
index 028a53fcb1ec..eae5db8dda56 100644
--- a/arch/sparc64/prom/console.c
+++ b/arch/sparc64/prom/console.c
@@ -67,7 +67,7 @@ prom_putchar(char c)
67} 67}
68 68
69void 69void
70prom_puts(char *s, int len) 70prom_puts(const char *s, int len)
71{ 71{
72 p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)| 72 p1275_cmd("write", P1275_ARG(1,P1275_ARG_IN_BUF)|
73 P1275_INOUT(3,1), 73 P1275_INOUT(3,1),
diff --git a/arch/sparc64/prom/devops.c b/arch/sparc64/prom/devops.c
index 2c99b21b6981..4641839eb39a 100644
--- a/arch/sparc64/prom/devops.c
+++ b/arch/sparc64/prom/devops.c
@@ -16,7 +16,7 @@
16 * Returns 0 on failure. 16 * Returns 0 on failure.
17 */ 17 */
18int 18int
19prom_devopen(char *dstr) 19prom_devopen(const char *dstr)
20{ 20{
21 return p1275_cmd ("open", P1275_ARG(0,P1275_ARG_IN_STRING)| 21 return p1275_cmd ("open", P1275_ARG(0,P1275_ARG_IN_STRING)|
22 P1275_INOUT(1,1), 22 P1275_INOUT(1,1),
diff --git a/arch/sparc64/prom/init.c b/arch/sparc64/prom/init.c
index 817faae058cd..f3cc2d8578b2 100644
--- a/arch/sparc64/prom/init.c
+++ b/arch/sparc64/prom/init.c
@@ -27,7 +27,6 @@ int prom_chosen_node;
27 * failure. It gets passed the pointer to the PROM vector. 27 * failure. It gets passed the pointer to the PROM vector.
28 */ 28 */
29 29
30extern void prom_meminit(void);
31extern void prom_cif_init(void *, void *); 30extern void prom_cif_init(void *, void *);
32 31
33void __init prom_init(void *cif_handler, void *cif_stack) 32void __init prom_init(void *cif_handler, void *cif_stack)
@@ -46,7 +45,7 @@ void __init prom_init(void *cif_handler, void *cif_stack)
46 if((prom_root_node == 0) || (prom_root_node == -1)) 45 if((prom_root_node == 0) || (prom_root_node == -1))
47 prom_halt(); 46 prom_halt();
48 47
49 prom_chosen_node = prom_finddevice("/chosen"); 48 prom_chosen_node = prom_finddevice(prom_chosen_path);
50 if (!prom_chosen_node || prom_chosen_node == -1) 49 if (!prom_chosen_node || prom_chosen_node == -1)
51 prom_halt(); 50 prom_halt();
52 51
@@ -90,8 +89,6 @@ void __init prom_init(void *cif_handler, void *cif_stack)
90 89
91 printk ("PROMLIB: Sun IEEE Boot Prom %s\n", buffer + bufadjust); 90 printk ("PROMLIB: Sun IEEE Boot Prom %s\n", buffer + bufadjust);
92 91
93 prom_meminit();
94
95 /* Initialization successful. */ 92 /* Initialization successful. */
96 return; 93 return;
97 94
diff --git a/arch/sparc64/prom/map.S b/arch/sparc64/prom/map.S
deleted file mode 100644
index 21b3f9c99ea7..000000000000
--- a/arch/sparc64/prom/map.S
+++ /dev/null
@@ -1,72 +0,0 @@
1/* $Id: map.S,v 1.2 1999/11/19 05:53:02 davem Exp $
2 * map.S: Tricky coding required to fixup the kernel OBP maps
3 * properly.
4 *
5 * Copyright (C) 1999 David S. Miller (davem@redhat.com)
6 */
7
8 .text
9 .align 8192
10 .globl prom_boot_page
11prom_boot_page:
12call_method:
13 .asciz "call-method"
14 .align 8
15map:
16 .asciz "map"
17 .align 8
18
19 /* When we are invoked, our caller has remapped us to
20 * page zero, therefore we must use PC relative addressing
21 * for everything after we begin performing the unmap/map
22 * calls.
23 */
24 .globl prom_remap
25prom_remap: /* %o0 = physpage, %o1 = virtpage, %o2 = mmu_ihandle */
26 rd %pc, %g1
27 srl %o2, 0, %o2 ! kill sign extension
28 sethi %hi(p1275buf), %g2
29 or %g2, %lo(p1275buf), %g2
30 ldx [%g2 + 0x10], %g3 ! prom_cif_stack
31 save %g3, -(192 + 128), %sp
32 ldx [%g2 + 0x08], %l0 ! prom_cif_handler
33 mov %g6, %i3
34 mov %g4, %i4
35 mov %g5, %i5
36 flushw
37
38 sethi %hi(prom_remap - call_method), %g7
39 or %g7, %lo(prom_remap - call_method), %g7
40 sub %g1, %g7, %l2 ! call-method string
41 sethi %hi(prom_remap - map), %g7
42 or %g7, %lo(prom_remap - map), %g7
43 sub %g1, %g7, %l4 ! map string
44
45 /* OK, map the 4MB region we really live at. */
46 stx %l2, [%sp + 2047 + 128 + 0x00] ! call-method
47 mov 7, %l5
48 stx %l5, [%sp + 2047 + 128 + 0x08] ! num_args
49 mov 1, %l5
50 stx %l5, [%sp + 2047 + 128 + 0x10] ! num_rets
51 stx %l4, [%sp + 2047 + 128 + 0x18] ! map
52 stx %i2, [%sp + 2047 + 128 + 0x20] ! mmu_ihandle
53 mov -1, %l5
54 stx %l5, [%sp + 2047 + 128 + 0x28] ! mode == default
55 sethi %hi(4 * 1024 * 1024), %l5
56 stx %l5, [%sp + 2047 + 128 + 0x30] ! size
57 stx %i1, [%sp + 2047 + 128 + 0x38] ! vaddr
58 stx %g0, [%sp + 2047 + 128 + 0x40] ! filler
59 stx %i0, [%sp + 2047 + 128 + 0x48] ! paddr
60 call %l0
61 add %sp, (2047 + 128), %o0 ! argument array
62
63 /* Restore hard-coded globals. */
64 mov %i3, %g6
65 mov %i4, %g4
66 mov %i5, %g5
67
68 /* Wheee.... we are done. */
69 ret
70 restore
71
72 .align 8192
diff --git a/arch/sparc64/prom/memory.c b/arch/sparc64/prom/memory.c
deleted file mode 100644
index f4a8143e052c..000000000000
--- a/arch/sparc64/prom/memory.c
+++ /dev/null
@@ -1,152 +0,0 @@
1/* $Id: memory.c,v 1.5 1999/08/31 06:55:04 davem Exp $
2 * memory.c: Prom routine for acquiring various bits of information
3 * about RAM on the machine, both virtual and physical.
4 *
5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
6 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
7 */
8
9#include <linux/kernel.h>
10#include <linux/init.h>
11
12#include <asm/openprom.h>
13#include <asm/oplib.h>
14
15/* This routine, for consistency, returns the ram parameters in the
16 * V0 prom memory descriptor format. I choose this format because I
17 * think it was the easiest to work with. I feel the religious
18 * arguments now... ;) Also, I return the linked lists sorted to
19 * prevent paging_init() upset stomach as I have not yet written
20 * the pepto-bismol kernel module yet.
21 */
22
23struct linux_prom64_registers prom_reg_memlist[64];
24struct linux_prom64_registers prom_reg_tmp[64];
25
26struct linux_mlist_p1275 prom_phys_total[64];
27struct linux_mlist_p1275 prom_prom_taken[64];
28struct linux_mlist_p1275 prom_phys_avail[64];
29
30struct linux_mlist_p1275 *prom_ptot_ptr = prom_phys_total;
31struct linux_mlist_p1275 *prom_ptak_ptr = prom_prom_taken;
32struct linux_mlist_p1275 *prom_pavl_ptr = prom_phys_avail;
33
34struct linux_mem_p1275 prom_memlist;
35
36
37/* Internal Prom library routine to sort a linux_mlist_p1275 memory
38 * list. Used below in initialization.
39 */
40static void __init
41prom_sortmemlist(struct linux_mlist_p1275 *thislist)
42{
43 int swapi = 0;
44 int i, mitr;
45 unsigned long tmpaddr, tmpsize;
46 unsigned long lowest;
47
48 for(i=0; thislist[i].theres_more; i++) {
49 lowest = thislist[i].start_adr;
50 for(mitr = i+1; thislist[mitr-1].theres_more; mitr++)
51 if(thislist[mitr].start_adr < lowest) {
52 lowest = thislist[mitr].start_adr;
53 swapi = mitr;
54 }
55 if(lowest == thislist[i].start_adr) continue;
56 tmpaddr = thislist[swapi].start_adr;
57 tmpsize = thislist[swapi].num_bytes;
58 for(mitr = swapi; mitr > i; mitr--) {
59 thislist[mitr].start_adr = thislist[mitr-1].start_adr;
60 thislist[mitr].num_bytes = thislist[mitr-1].num_bytes;
61 }
62 thislist[i].start_adr = tmpaddr;
63 thislist[i].num_bytes = tmpsize;
64 }
65}
66
67/* Initialize the memory lists based upon the prom version. */
68void __init prom_meminit(void)
69{
70 int node = 0;
71 unsigned int iter, num_regs;
72
73 node = prom_finddevice("/memory");
74 num_regs = prom_getproperty(node, "available",
75 (char *) prom_reg_memlist,
76 sizeof(prom_reg_memlist));
77 num_regs = (num_regs/sizeof(struct linux_prom64_registers));
78 for(iter=0; iter<num_regs; iter++) {
79 prom_phys_avail[iter].start_adr =
80 prom_reg_memlist[iter].phys_addr;
81 prom_phys_avail[iter].num_bytes =
82 prom_reg_memlist[iter].reg_size;
83 prom_phys_avail[iter].theres_more =
84 &prom_phys_avail[iter+1];
85 }
86 prom_phys_avail[iter-1].theres_more = NULL;
87
88 num_regs = prom_getproperty(node, "reg",
89 (char *) prom_reg_memlist,
90 sizeof(prom_reg_memlist));
91 num_regs = (num_regs/sizeof(struct linux_prom64_registers));
92 for(iter=0; iter<num_regs; iter++) {
93 prom_phys_total[iter].start_adr =
94 prom_reg_memlist[iter].phys_addr;
95 prom_phys_total[iter].num_bytes =
96 prom_reg_memlist[iter].reg_size;
97 prom_phys_total[iter].theres_more =
98 &prom_phys_total[iter+1];
99 }
100 prom_phys_total[iter-1].theres_more = NULL;
101
102 node = prom_finddevice("/virtual-memory");
103 num_regs = prom_getproperty(node, "available",
104 (char *) prom_reg_memlist,
105 sizeof(prom_reg_memlist));
106 num_regs = (num_regs/sizeof(struct linux_prom64_registers));
107
108 /* Convert available virtual areas to taken virtual
109 * areas. First sort, then convert.
110 */
111 for(iter=0; iter<num_regs; iter++) {
112 prom_prom_taken[iter].start_adr =
113 prom_reg_memlist[iter].phys_addr;
114 prom_prom_taken[iter].num_bytes =
115 prom_reg_memlist[iter].reg_size;
116 prom_prom_taken[iter].theres_more =
117 &prom_prom_taken[iter+1];
118 }
119 prom_prom_taken[iter-1].theres_more = NULL;
120
121 prom_sortmemlist(prom_prom_taken);
122
123 /* Finally, convert. */
124 for(iter=0; iter<num_regs; iter++) {
125 prom_prom_taken[iter].start_adr =
126 prom_prom_taken[iter].start_adr +
127 prom_prom_taken[iter].num_bytes;
128 prom_prom_taken[iter].num_bytes =
129 prom_prom_taken[iter+1].start_adr -
130 prom_prom_taken[iter].start_adr;
131 }
132 prom_prom_taken[iter-1].num_bytes =
133 -1UL - prom_prom_taken[iter-1].start_adr;
134
135 /* Sort the other two lists. */
136 prom_sortmemlist(prom_phys_total);
137 prom_sortmemlist(prom_phys_avail);
138
139 /* Link all the lists into the top-level descriptor. */
140 prom_memlist.p1275_totphys=&prom_ptot_ptr;
141 prom_memlist.p1275_prommap=&prom_ptak_ptr;
142 prom_memlist.p1275_available=&prom_pavl_ptr;
143}
144
145/* This returns a pointer to our libraries internal p1275 format
146 * memory descriptor.
147 */
148struct linux_mem_p1275 *
149prom_meminfo(void)
150{
151 return &prom_memlist;
152}
diff --git a/arch/sparc64/prom/misc.c b/arch/sparc64/prom/misc.c
index 19c44e97e9ee..9b895faf077b 100644
--- a/arch/sparc64/prom/misc.c
+++ b/arch/sparc64/prom/misc.c
@@ -17,14 +17,14 @@
17#include <asm/system.h> 17#include <asm/system.h>
18 18
19/* Reset and reboot the machine with the command 'bcommand'. */ 19/* Reset and reboot the machine with the command 'bcommand'. */
20void prom_reboot(char *bcommand) 20void prom_reboot(const char *bcommand)
21{ 21{
22 p1275_cmd("boot", P1275_ARG(0, P1275_ARG_IN_STRING) | 22 p1275_cmd("boot", P1275_ARG(0, P1275_ARG_IN_STRING) |
23 P1275_INOUT(1, 0), bcommand); 23 P1275_INOUT(1, 0), bcommand);
24} 24}
25 25
26/* Forth evaluate the expression contained in 'fstring'. */ 26/* Forth evaluate the expression contained in 'fstring'. */
27void prom_feval(char *fstring) 27void prom_feval(const char *fstring)
28{ 28{
29 if (!fstring || fstring[0] == 0) 29 if (!fstring || fstring[0] == 0)
30 return; 30 return;
@@ -148,21 +148,19 @@ void prom_set_trap_table(unsigned long tba)
148 p1275_cmd("SUNW,set-trap-table", P1275_INOUT(1, 0), tba); 148 p1275_cmd("SUNW,set-trap-table", P1275_INOUT(1, 0), tba);
149} 149}
150 150
151int mmu_ihandle_cache = 0;
152
153int prom_get_mmu_ihandle(void) 151int prom_get_mmu_ihandle(void)
154{ 152{
155 int node, ret; 153 int node, ret;
156 154
157 if (mmu_ihandle_cache != 0) 155 if (prom_mmu_ihandle_cache != 0)
158 return mmu_ihandle_cache; 156 return prom_mmu_ihandle_cache;
159 157
160 node = prom_finddevice("/chosen"); 158 node = prom_finddevice(prom_chosen_path);
161 ret = prom_getint(node, "mmu"); 159 ret = prom_getint(node, prom_mmu_name);
162 if (ret == -1 || ret == 0) 160 if (ret == -1 || ret == 0)
163 mmu_ihandle_cache = -1; 161 prom_mmu_ihandle_cache = -1;
164 else 162 else
165 mmu_ihandle_cache = ret; 163 prom_mmu_ihandle_cache = ret;
166 164
167 return ret; 165 return ret;
168} 166}
@@ -190,7 +188,7 @@ long prom_itlb_load(unsigned long index,
190 unsigned long tte_data, 188 unsigned long tte_data,
191 unsigned long vaddr) 189 unsigned long vaddr)
192{ 190{
193 return p1275_cmd("call-method", 191 return p1275_cmd(prom_callmethod_name,
194 (P1275_ARG(0, P1275_ARG_IN_STRING) | 192 (P1275_ARG(0, P1275_ARG_IN_STRING) |
195 P1275_ARG(2, P1275_ARG_IN_64B) | 193 P1275_ARG(2, P1275_ARG_IN_64B) |
196 P1275_ARG(3, P1275_ARG_IN_64B) | 194 P1275_ARG(3, P1275_ARG_IN_64B) |
@@ -207,7 +205,7 @@ long prom_dtlb_load(unsigned long index,
207 unsigned long tte_data, 205 unsigned long tte_data,
208 unsigned long vaddr) 206 unsigned long vaddr)
209{ 207{
210 return p1275_cmd("call-method", 208 return p1275_cmd(prom_callmethod_name,
211 (P1275_ARG(0, P1275_ARG_IN_STRING) | 209 (P1275_ARG(0, P1275_ARG_IN_STRING) |
212 P1275_ARG(2, P1275_ARG_IN_64B) | 210 P1275_ARG(2, P1275_ARG_IN_64B) |
213 P1275_ARG(3, P1275_ARG_IN_64B) | 211 P1275_ARG(3, P1275_ARG_IN_64B) |
@@ -223,13 +221,13 @@ long prom_dtlb_load(unsigned long index,
223int prom_map(int mode, unsigned long size, 221int prom_map(int mode, unsigned long size,
224 unsigned long vaddr, unsigned long paddr) 222 unsigned long vaddr, unsigned long paddr)
225{ 223{
226 int ret = p1275_cmd("call-method", 224 int ret = p1275_cmd(prom_callmethod_name,
227 (P1275_ARG(0, P1275_ARG_IN_STRING) | 225 (P1275_ARG(0, P1275_ARG_IN_STRING) |
228 P1275_ARG(3, P1275_ARG_IN_64B) | 226 P1275_ARG(3, P1275_ARG_IN_64B) |
229 P1275_ARG(4, P1275_ARG_IN_64B) | 227 P1275_ARG(4, P1275_ARG_IN_64B) |
230 P1275_ARG(6, P1275_ARG_IN_64B) | 228 P1275_ARG(6, P1275_ARG_IN_64B) |
231 P1275_INOUT(7, 1)), 229 P1275_INOUT(7, 1)),
232 "map", 230 prom_map_name,
233 prom_get_mmu_ihandle(), 231 prom_get_mmu_ihandle(),
234 mode, 232 mode,
235 size, 233 size,
@@ -244,12 +242,12 @@ int prom_map(int mode, unsigned long size,
244 242
245void prom_unmap(unsigned long size, unsigned long vaddr) 243void prom_unmap(unsigned long size, unsigned long vaddr)
246{ 244{
247 p1275_cmd("call-method", 245 p1275_cmd(prom_callmethod_name,
248 (P1275_ARG(0, P1275_ARG_IN_STRING) | 246 (P1275_ARG(0, P1275_ARG_IN_STRING) |
249 P1275_ARG(2, P1275_ARG_IN_64B) | 247 P1275_ARG(2, P1275_ARG_IN_64B) |
250 P1275_ARG(3, P1275_ARG_IN_64B) | 248 P1275_ARG(3, P1275_ARG_IN_64B) |
251 P1275_INOUT(4, 0)), 249 P1275_INOUT(4, 0)),
252 "unmap", 250 prom_unmap_name,
253 prom_get_mmu_ihandle(), 251 prom_get_mmu_ihandle(),
254 size, 252 size,
255 vaddr); 253 vaddr);
@@ -258,7 +256,7 @@ void prom_unmap(unsigned long size, unsigned long vaddr)
258/* Set aside physical memory which is not touched or modified 256/* Set aside physical memory which is not touched or modified
259 * across soft resets. 257 * across soft resets.
260 */ 258 */
261unsigned long prom_retain(char *name, 259unsigned long prom_retain(const char *name,
262 unsigned long pa_low, unsigned long pa_high, 260 unsigned long pa_low, unsigned long pa_high,
263 long size, long align) 261 long size, long align)
264{ 262{
@@ -290,7 +288,7 @@ int prom_getunumber(int syndrome_code,
290 unsigned long phys_addr, 288 unsigned long phys_addr,
291 char *buf, int buflen) 289 char *buf, int buflen)
292{ 290{
293 return p1275_cmd("call-method", 291 return p1275_cmd(prom_callmethod_name,
294 (P1275_ARG(0, P1275_ARG_IN_STRING) | 292 (P1275_ARG(0, P1275_ARG_IN_STRING) |
295 P1275_ARG(3, P1275_ARG_OUT_BUF) | 293 P1275_ARG(3, P1275_ARG_OUT_BUF) |
296 P1275_ARG(6, P1275_ARG_IN_64B) | 294 P1275_ARG(6, P1275_ARG_IN_64B) |
diff --git a/arch/sparc64/prom/p1275.c b/arch/sparc64/prom/p1275.c
index 59fe38bba39e..a5a7c5712028 100644
--- a/arch/sparc64/prom/p1275.c
+++ b/arch/sparc64/prom/p1275.c
@@ -46,7 +46,7 @@ static inline unsigned long spitfire_get_primary_context(void)
46 */ 46 */
47DEFINE_SPINLOCK(prom_entry_lock); 47DEFINE_SPINLOCK(prom_entry_lock);
48 48
49long p1275_cmd (char *service, long fmt, ...) 49long p1275_cmd(const char *service, long fmt, ...)
50{ 50{
51 char *p, *q; 51 char *p, *q;
52 unsigned long flags; 52 unsigned long flags;
diff --git a/arch/sparc64/prom/printf.c b/arch/sparc64/prom/printf.c
index a6df82cafa0d..660943ee4c2a 100644
--- a/arch/sparc64/prom/printf.c
+++ b/arch/sparc64/prom/printf.c
@@ -34,7 +34,7 @@ prom_write(const char *buf, unsigned int n)
34} 34}
35 35
36void 36void
37prom_printf(char *fmt, ...) 37prom_printf(const char *fmt, ...)
38{ 38{
39 va_list args; 39 va_list args;
40 int i; 40 int i;
diff --git a/arch/sparc64/prom/tree.c b/arch/sparc64/prom/tree.c
index ccf73258ebf7..b1ff9e87dcc6 100644
--- a/arch/sparc64/prom/tree.c
+++ b/arch/sparc64/prom/tree.c
@@ -69,7 +69,7 @@ prom_getsibling(int node)
69 * Return -1 on error. 69 * Return -1 on error.
70 */ 70 */
71__inline__ int 71__inline__ int
72prom_getproplen(int node, char *prop) 72prom_getproplen(int node, const char *prop)
73{ 73{
74 if((!node) || (!prop)) return -1; 74 if((!node) || (!prop)) return -1;
75 return p1275_cmd ("getproplen", 75 return p1275_cmd ("getproplen",
@@ -83,20 +83,20 @@ prom_getproplen(int node, char *prop)
83 * was successful the length will be returned, else -1 is returned. 83 * was successful the length will be returned, else -1 is returned.
84 */ 84 */
85__inline__ int 85__inline__ int
86prom_getproperty(int node, char *prop, char *buffer, int bufsize) 86prom_getproperty(int node, const char *prop, char *buffer, int bufsize)
87{ 87{
88 int plen; 88 int plen;
89 89
90 plen = prom_getproplen(node, prop); 90 plen = prom_getproplen(node, prop);
91 if((plen > bufsize) || (plen == 0) || (plen == -1)) 91 if ((plen > bufsize) || (plen == 0) || (plen == -1)) {
92 return -1; 92 return -1;
93 else { 93 } else {
94 /* Ok, things seem all right. */ 94 /* Ok, things seem all right. */
95 return p1275_cmd ("getprop", 95 return p1275_cmd(prom_getprop_name,
96 P1275_ARG(1,P1275_ARG_IN_STRING)| 96 P1275_ARG(1,P1275_ARG_IN_STRING)|
97 P1275_ARG(2,P1275_ARG_OUT_BUF)| 97 P1275_ARG(2,P1275_ARG_OUT_BUF)|
98 P1275_INOUT(4, 1), 98 P1275_INOUT(4, 1),
99 node, prop, buffer, P1275_SIZE(plen)); 99 node, prop, buffer, P1275_SIZE(plen));
100 } 100 }
101} 101}
102 102
@@ -104,7 +104,7 @@ prom_getproperty(int node, char *prop, char *buffer, int bufsize)
104 * on failure. 104 * on failure.
105 */ 105 */
106__inline__ int 106__inline__ int
107prom_getint(int node, char *prop) 107prom_getint(int node, const char *prop)
108{ 108{
109 int intprop; 109 int intprop;
110 110
@@ -119,7 +119,7 @@ prom_getint(int node, char *prop)
119 */ 119 */
120 120
121int 121int
122prom_getintdefault(int node, char *property, int deflt) 122prom_getintdefault(int node, const char *property, int deflt)
123{ 123{
124 int retval; 124 int retval;
125 125
@@ -131,7 +131,7 @@ prom_getintdefault(int node, char *property, int deflt)
131 131
132/* Acquire a boolean property, 1=TRUE 0=FALSE. */ 132/* Acquire a boolean property, 1=TRUE 0=FALSE. */
133int 133int
134prom_getbool(int node, char *prop) 134prom_getbool(int node, const char *prop)
135{ 135{
136 int retval; 136 int retval;
137 137
@@ -145,7 +145,7 @@ prom_getbool(int node, char *prop)
145 * buffer. 145 * buffer.
146 */ 146 */
147void 147void
148prom_getstring(int node, char *prop, char *user_buf, int ubuf_size) 148prom_getstring(int node, const char *prop, char *user_buf, int ubuf_size)
149{ 149{
150 int len; 150 int len;
151 151
@@ -160,7 +160,7 @@ prom_getstring(int node, char *prop, char *user_buf, int ubuf_size)
160 * YES = 1 NO = 0 160 * YES = 1 NO = 0
161 */ 161 */
162int 162int
163prom_nodematch(int node, char *name) 163prom_nodematch(int node, const char *name)
164{ 164{
165 char namebuf[128]; 165 char namebuf[128];
166 prom_getproperty(node, "name", namebuf, sizeof(namebuf)); 166 prom_getproperty(node, "name", namebuf, sizeof(namebuf));
@@ -172,7 +172,7 @@ prom_nodematch(int node, char *name)
172 * 'nodename'. Return node if successful, zero if not. 172 * 'nodename'. Return node if successful, zero if not.
173 */ 173 */
174int 174int
175prom_searchsiblings(int node_start, char *nodename) 175prom_searchsiblings(int node_start, const char *nodename)
176{ 176{
177 177
178 int thisnode, error; 178 int thisnode, error;
@@ -294,7 +294,7 @@ prom_firstprop(int node, char *buffer)
294 * property types for this node. 294 * property types for this node.
295 */ 295 */
296__inline__ char * 296__inline__ char *
297prom_nextprop(int node, char *oprop, char *buffer) 297prom_nextprop(int node, const char *oprop, char *buffer)
298{ 298{
299 char buf[32]; 299 char buf[32];
300 300
@@ -314,15 +314,17 @@ prom_nextprop(int node, char *oprop, char *buffer)
314} 314}
315 315
316int 316int
317prom_finddevice(char *name) 317prom_finddevice(const char *name)
318{ 318{
319 if(!name) return 0; 319 if (!name)
320 return p1275_cmd ("finddevice", P1275_ARG(0,P1275_ARG_IN_STRING)| 320 return 0;
321 P1275_INOUT(1, 1), 321 return p1275_cmd(prom_finddev_name,
322 name); 322 P1275_ARG(0,P1275_ARG_IN_STRING)|
323 P1275_INOUT(1, 1),
324 name);
323} 325}
324 326
325int prom_node_has_property(int node, char *prop) 327int prom_node_has_property(int node, const char *prop)
326{ 328{
327 char buf [32]; 329 char buf [32];
328 330
@@ -339,7 +341,7 @@ int prom_node_has_property(int node, char *prop)
339 * of 'size' bytes. Return the number of bytes the prom accepted. 341 * of 'size' bytes. Return the number of bytes the prom accepted.
340 */ 342 */
341int 343int
342prom_setprop(int node, char *pname, char *value, int size) 344prom_setprop(int node, const char *pname, char *value, int size)
343{ 345{
344 if(size == 0) return 0; 346 if(size == 0) return 0;
345 if((pname == 0) || (value == 0)) return 0; 347 if((pname == 0) || (value == 0)) return 0;
@@ -364,7 +366,7 @@ prom_inst2pkg(int inst)
364 * FIXME: Should work for v0 as well 366 * FIXME: Should work for v0 as well
365 */ 367 */
366int 368int
367prom_pathtoinode(char *path) 369prom_pathtoinode(const char *path)
368{ 370{
369 int node, inst; 371 int node, inst;
370 372
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-12 20:07:50 -0500