aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/kernel/setup.c2
-rw-r--r--arch/sparc64/kernel/head.S7
-rw-r--r--arch/sparc64/kernel/ptrace.c14
-rw-r--r--arch/sparc64/kernel/setup.c21
-rw-r--r--arch/sparc64/kernel/sys32.S170
-rw-r--r--arch/sparc64/kernel/traps.c60
-rw-r--r--arch/sparc64/kernel/una_asm.S65
-rw-r--r--arch/sparc64/kernel/unaligned.c45
-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.c259
-rw-r--r--arch/sparc64/prom/Makefile2
-rw-r--r--arch/sparc64/prom/init.c3
-rw-r--r--arch/sparc64/prom/memory.c152
17 files changed, 359 insertions, 671 deletions
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 53c192a4982f..3509e4305532 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -249,8 +249,6 @@ struct tt_entry *sparc_ttable;
249 249
250struct pt_regs fake_swapper_regs; 250struct pt_regs fake_swapper_regs;
251 251
252extern void paging_init(void);
253
254void __init setup_arch(char **cmdline_p) 252void __init setup_arch(char **cmdline_p)
255{ 253{
256 int i; 254 int i;
diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index ecc748fb9ad7..89406f9649a9 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -540,8 +540,11 @@ bootup_user_stack_end:
540prom_tba: .xword 0 540prom_tba: .xword 0
541tlb_type: .word 0 /* Must NOT end up in BSS */ 541tlb_type: .word 0 /* Must NOT end up in BSS */
542 .section ".fixup",#alloc,#execinstr 542 .section ".fixup",#alloc,#execinstr
543 .globl __ret_efault 543
544 .globl __ret_efault, __retl_efault
544__ret_efault: 545__ret_efault:
545 ret 546 ret
546 restore %g0, -EFAULT, %o0 547 restore %g0, -EFAULT, %o0
547 548__retl_efault:
549 retl
550 mov -EFAULT, %o0
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 8e8baf2354df..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;
@@ -492,12 +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 int i;
500
501 /* Initialize PROM console and command line. */ 495 /* Initialize PROM console and command line. */
502 *cmdline_p = prom_getbootargs(); 496 *cmdline_p = prom_getbootargs();
503 strcpy(saved_command_line, *cmdline_p); 497 strcpy(saved_command_line, *cmdline_p);
@@ -516,21 +510,6 @@ void __init setup_arch(char **cmdline_p)
516 boot_flags_init(*cmdline_p); 510 boot_flags_init(*cmdline_p);
517 511
518 idprom_init(); 512 idprom_init();
519 (void) prom_probe_memory();
520
521 phys_base = 0xffffffffffffffffUL;
522 for (i = 0; sp_banks[i].num_bytes != 0; i++) {
523 unsigned long top;
524
525 if (sp_banks[i].base_addr < phys_base)
526 phys_base = sp_banks[i].base_addr;
527 top = sp_banks[i].base_addr +
528 sp_banks[i].num_bytes;
529 }
530 pfn_base = phys_base >> PAGE_SHIFT;
531
532 kern_base = (prom_boot_mapping_phys_low >> 22UL) << 22UL;
533 kern_size = (unsigned long)&_end - (unsigned long)KERNBASE;
534 513
535 if (!root_flags) 514 if (!root_flags)
536 root_mountflags &= ~MS_RDONLY; 515 root_mountflags &= ~MS_RDONLY;
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/traps.c b/arch/sparc64/kernel/traps.c
index f8e7005fede9..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
@@ -1346,16 +1331,12 @@ static int cheetah_fix_ce(unsigned long physaddr)
1346/* Return non-zero if PADDR is a valid physical memory address. */ 1331/* Return non-zero if PADDR is a valid physical memory address. */
1347static int cheetah_check_main_memory(unsigned long paddr) 1332static int cheetah_check_main_memory(unsigned long paddr)
1348{ 1333{
1349 int i; 1334 unsigned long vaddr = PAGE_OFFSET + paddr;
1350 1335
1351 for (i = 0; ; i++) { 1336 if (vaddr > (unsigned long) high_memory)
1352 if (sp_banks[i].num_bytes == 0) 1337 return 0;
1353 break; 1338
1354 if (paddr >= sp_banks[i].base_addr && 1339 return kern_addr_valid(vaddr);
1355 paddr < (sp_banks[i].base_addr + sp_banks[i].num_bytes))
1356 return 1;
1357 }
1358 return 0;
1359} 1340}
1360 1341
1361void 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)
@@ -1610,10 +1591,10 @@ void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned
1610 /* OK, usermode access. */ 1591 /* OK, usermode access. */
1611 recoverable = 1; 1592 recoverable = 1;
1612 } else { 1593 } else {
1613 unsigned long g2 = regs->u_regs[UREG_G2]; 1594 const struct exception_table_entry *entry;
1614 unsigned long fixup = search_extables_range(regs->tpc, &g2);
1615 1595
1616 if (fixup != 0UL) { 1596 entry = search_exception_tables(regs->tpc);
1597 if (entry) {
1617 /* OK, kernel access to userspace. */ 1598 /* OK, kernel access to userspace. */
1618 recoverable = 1; 1599 recoverable = 1;
1619 1600
@@ -1632,9 +1613,8 @@ void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned
1632 * recoverable condition. 1613 * recoverable condition.
1633 */ 1614 */
1634 if (recoverable) { 1615 if (recoverable) {
1635 regs->tpc = fixup; 1616 regs->tpc = entry->fixup;
1636 regs->tnpc = regs->tpc + 4; 1617 regs->tnpc = regs->tpc + 4;
1637 regs->u_regs[UREG_G2] = g2;
1638 } 1618 }
1639 } 1619 }
1640 } 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 02af08ffec8f..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);
@@ -295,7 +294,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
295 kernel_mna_trap_fault(); 294 kernel_mna_trap_fault();
296 } else { 295 } else {
297 unsigned long addr, *reg_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));
@@ -320,9 +319,10 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
320 switch (dir) { 319 switch (dir) {
321 case load: 320 case load:
322 reg_addr = fetch_reg_addr(((insn>>25)&0x1f), regs); 321 reg_addr = fetch_reg_addr(((insn>>25)&0x1f), regs);
323 do_int_load(reg_addr, 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);
325 if (likely(!err) && unlikely(asi != orig_asi)) {
326 unsigned long val_in = *reg_addr; 326 unsigned long val_in = *reg_addr;
327 switch (size) { 327 switch (size) {
328 case 2: 328 case 2:
@@ -344,16 +344,19 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
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/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 9f6ca624892d..5db50524f20d 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -21,6 +21,7 @@
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> 23#include <linux/cache.h>
24#include <linux/sort.h>
24 25
25#include <asm/head.h> 26#include <asm/head.h>
26#include <asm/system.h> 27#include <asm/system.h>
@@ -41,7 +42,72 @@
41 42
42extern void device_scan(void); 43extern void device_scan(void);
43 44
44struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; 45#define MAX_BANKS 32
46
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}
45 111
46unsigned long *sparc64_valid_addr_bitmap __read_mostly; 112unsigned long *sparc64_valid_addr_bitmap __read_mostly;
47 113
@@ -1206,14 +1272,14 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
1206 int i; 1272 int i;
1207 1273
1208#ifdef CONFIG_DEBUG_BOOTMEM 1274#ifdef CONFIG_DEBUG_BOOTMEM
1209 prom_printf("bootmem_init: Scan sp_banks, "); 1275 prom_printf("bootmem_init: Scan pavail, ");
1210#endif 1276#endif
1211 1277
1212 bytes_avail = 0UL; 1278 bytes_avail = 0UL;
1213 for (i = 0; sp_banks[i].num_bytes != 0; i++) { 1279 for (i = 0; i < pavail_ents; i++) {
1214 end_of_phys_memory = sp_banks[i].base_addr + 1280 end_of_phys_memory = pavail[i].phys_addr +
1215 sp_banks[i].num_bytes; 1281 pavail[i].reg_size;
1216 bytes_avail += sp_banks[i].num_bytes; 1282 bytes_avail += pavail[i].reg_size;
1217 if (cmdline_memory_size) { 1283 if (cmdline_memory_size) {
1218 if (bytes_avail > cmdline_memory_size) { 1284 if (bytes_avail > cmdline_memory_size) {
1219 unsigned long slack = bytes_avail - cmdline_memory_size; 1285 unsigned long slack = bytes_avail - cmdline_memory_size;
@@ -1221,12 +1287,15 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
1221 bytes_avail -= slack; 1287 bytes_avail -= slack;
1222 end_of_phys_memory -= slack; 1288 end_of_phys_memory -= slack;
1223 1289
1224 sp_banks[i].num_bytes -= slack; 1290 pavail[i].reg_size -= slack;
1225 if (sp_banks[i].num_bytes == 0) { 1291 if ((long)pavail[i].reg_size <= 0L) {
1226 sp_banks[i].base_addr = 0xdeadbeef; 1292 pavail[i].phys_addr = 0xdeadbeefUL;
1293 pavail[i].reg_size = 0UL;
1294 pavail_ents = i;
1227 } else { 1295 } else {
1228 sp_banks[i+1].num_bytes = 0; 1296 pavail[i+1].reg_size = 0Ul;
1229 sp_banks[i+1].base_addr = 0xdeadbeef; 1297 pavail[i+1].phys_addr = 0xdeadbeefUL;
1298 pavail_ents = i + 1;
1230 } 1299 }
1231 break; 1300 break;
1232 } 1301 }
@@ -1280,12 +1349,12 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
1280 /* Now register the available physical memory with the 1349 /* Now register the available physical memory with the
1281 * allocator. 1350 * allocator.
1282 */ 1351 */
1283 for (i = 0; sp_banks[i].num_bytes != 0; i++) { 1352 for (i = 0; i < pavail_ents; i++) {
1284#ifdef CONFIG_DEBUG_BOOTMEM 1353#ifdef CONFIG_DEBUG_BOOTMEM
1285 prom_printf("free_bootmem(sp_banks:%d): base[%lx] size[%lx]\n", 1354 prom_printf("free_bootmem(pavail:%d): base[%lx] size[%lx]\n",
1286 i, sp_banks[i].base_addr, sp_banks[i].num_bytes); 1355 i, pavail[i].phys_addr, pavail[i].reg_size);
1287#endif 1356#endif
1288 free_bootmem(sp_banks[i].base_addr, sp_banks[i].num_bytes); 1357 free_bootmem(pavail[i].phys_addr, pavail[i].reg_size);
1289 } 1358 }
1290 1359
1291#ifdef CONFIG_BLK_DEV_INITRD 1360#ifdef CONFIG_BLK_DEV_INITRD
@@ -1334,7 +1403,7 @@ static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend,
1334 unsigned long alloc_bytes = 0UL; 1403 unsigned long alloc_bytes = 0UL;
1335 1404
1336 if ((vstart & ~PAGE_MASK) || (vend & ~PAGE_MASK)) { 1405 if ((vstart & ~PAGE_MASK) || (vend & ~PAGE_MASK)) {
1337 prom_printf("kernel_map: Unaligned sp_banks[%lx:%lx]\n", 1406 prom_printf("kernel_map: Unaligned physmem[%lx:%lx]\n",
1338 vstart, vend); 1407 vstart, vend);
1339 prom_halt(); 1408 prom_halt();
1340 } 1409 }
@@ -1381,23 +1450,24 @@ static unsigned long kernel_map_range(unsigned long pstart, unsigned long pend,
1381 return alloc_bytes; 1450 return alloc_bytes;
1382} 1451}
1383 1452
1384extern struct linux_mlist_p1275 *prom_ptot_ptr; 1453static struct linux_prom64_registers pall[MAX_BANKS] __initdata;
1454static int pall_ents __initdata;
1455
1385extern unsigned int kvmap_linear_patch[1]; 1456extern unsigned int kvmap_linear_patch[1];
1386 1457
1387static void __init kernel_physical_mapping_init(void) 1458static void __init kernel_physical_mapping_init(void)
1388{ 1459{
1389 struct linux_mlist_p1275 *p = prom_ptot_ptr; 1460 unsigned long i, mem_alloced = 0UL;
1390 unsigned long mem_alloced = 0UL; 1461
1462 read_obp_memory("reg", &pall[0], &pall_ents);
1391 1463
1392 while (p) { 1464 for (i = 0; i < pall_ents; i++) {
1393 unsigned long phys_start, phys_end; 1465 unsigned long phys_start, phys_end;
1394 1466
1395 phys_start = p->start_adr; 1467 phys_start = pall[i].phys_addr;
1396 phys_end = phys_start + p->num_bytes; 1468 phys_end = phys_start + pall[i].reg_size;
1397 mem_alloced += kernel_map_range(phys_start, phys_end, 1469 mem_alloced += kernel_map_range(phys_start, phys_end,
1398 PAGE_KERNEL); 1470 PAGE_KERNEL);
1399
1400 p = p->theres_more;
1401 } 1471 }
1402 1472
1403 printk("Allocated %ld bytes for kernel page tables.\n", 1473 printk("Allocated %ld bytes for kernel page tables.\n",
@@ -1425,6 +1495,18 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
1425} 1495}
1426#endif 1496#endif
1427 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
1428/* paging_init() sets up the page tables */ 1510/* paging_init() sets up the page tables */
1429 1511
1430extern void cheetah_ecache_flush_init(void); 1512extern void cheetah_ecache_flush_init(void);
@@ -1435,7 +1517,19 @@ pgd_t swapper_pg_dir[2048];
1435void __init paging_init(void) 1517void __init paging_init(void)
1436{ 1518{
1437 unsigned long end_pfn, pages_avail, shift; 1519 unsigned long end_pfn, pages_avail, shift;
1438 unsigned long real_end; 1520 unsigned long real_end, i;
1521
1522 /* Find available physical memory... */
1523 read_obp_memory("available", &pavail[0], &pavail_ents);
1524
1525 phys_base = 0xffffffffffffffffUL;
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;
1439 1533
1440 set_bit(0, mmu_context_bmap); 1534 set_bit(0, mmu_context_bmap);
1441 1535
@@ -1507,128 +1601,35 @@ void __init paging_init(void)
1507 device_scan(); 1601 device_scan();
1508} 1602}
1509 1603
1510/* Ok, it seems that the prom can allocate some more memory chunks
1511 * as a side effect of some prom calls we perform during the
1512 * boot sequence. My most likely theory is that it is from the
1513 * prom_set_traptable() call, and OBP is allocating a scratchpad
1514 * for saving client program register state etc.
1515 */
1516static void __init sort_memlist(struct linux_mlist_p1275 *thislist)
1517{
1518 int swapi = 0;
1519 int i, mitr;
1520 unsigned long tmpaddr, tmpsize;
1521 unsigned long lowest;
1522
1523 for (i = 0; thislist[i].theres_more != 0; i++) {
1524 lowest = thislist[i].start_adr;
1525 for (mitr = i+1; thislist[mitr-1].theres_more != 0; mitr++)
1526 if (thislist[mitr].start_adr < lowest) {
1527 lowest = thislist[mitr].start_adr;
1528 swapi = mitr;
1529 }
1530 if (lowest == thislist[i].start_adr)
1531 continue;
1532 tmpaddr = thislist[swapi].start_adr;
1533 tmpsize = thislist[swapi].num_bytes;
1534 for (mitr = swapi; mitr > i; mitr--) {
1535 thislist[mitr].start_adr = thislist[mitr-1].start_adr;
1536 thislist[mitr].num_bytes = thislist[mitr-1].num_bytes;
1537 }
1538 thislist[i].start_adr = tmpaddr;
1539 thislist[i].num_bytes = tmpsize;
1540 }
1541}
1542
1543void __init rescan_sp_banks(void)
1544{
1545 struct linux_prom64_registers memlist[64];
1546 struct linux_mlist_p1275 avail[64], *mlist;
1547 unsigned long bytes, base_paddr;
1548 int num_regs, node = prom_finddevice("/memory");
1549 int i;
1550
1551 num_regs = prom_getproperty(node, "available",
1552 (char *) memlist, sizeof(memlist));
1553 num_regs = (num_regs / sizeof(struct linux_prom64_registers));
1554 for (i = 0; i < num_regs; i++) {
1555 avail[i].start_adr = memlist[i].phys_addr;
1556 avail[i].num_bytes = memlist[i].reg_size;
1557 avail[i].theres_more = &avail[i + 1];
1558 }
1559 avail[i - 1].theres_more = NULL;
1560 sort_memlist(avail);
1561
1562 mlist = &avail[0];
1563 i = 0;
1564 bytes = mlist->num_bytes;
1565 base_paddr = mlist->start_adr;
1566
1567 sp_banks[0].base_addr = base_paddr;
1568 sp_banks[0].num_bytes = bytes;
1569
1570 while (mlist->theres_more != NULL){
1571 i++;
1572 mlist = mlist->theres_more;
1573 bytes = mlist->num_bytes;
1574 if (i >= SPARC_PHYS_BANKS-1) {
1575 printk ("The machine has more banks than "
1576 "this kernel can support\n"
1577 "Increase the SPARC_PHYS_BANKS "
1578 "setting (currently %d)\n",
1579 SPARC_PHYS_BANKS);
1580 i = SPARC_PHYS_BANKS-1;
1581 break;
1582 }
1583
1584 sp_banks[i].base_addr = mlist->start_adr;
1585 sp_banks[i].num_bytes = mlist->num_bytes;
1586 }
1587
1588 i++;
1589 sp_banks[i].base_addr = 0xdeadbeefbeefdeadUL;
1590 sp_banks[i].num_bytes = 0;
1591
1592 for (i = 0; sp_banks[i].num_bytes != 0; i++)
1593 sp_banks[i].num_bytes &= PAGE_MASK;
1594}
1595
1596static void __init taint_real_pages(void) 1604static void __init taint_real_pages(void)
1597{ 1605{
1598 struct sparc_phys_banks saved_sp_banks[SPARC_PHYS_BANKS];
1599 int i; 1606 int i;
1600 1607
1601 for (i = 0; i < SPARC_PHYS_BANKS; i++) { 1608 read_obp_memory("available", &pavail_rescan[0], &pavail_rescan_ents);
1602 saved_sp_banks[i].base_addr =
1603 sp_banks[i].base_addr;
1604 saved_sp_banks[i].num_bytes =
1605 sp_banks[i].num_bytes;
1606 }
1607
1608 rescan_sp_banks();
1609 1609
1610 /* Find changes discovered in the sp_bank rescan and 1610 /* Find changes discovered in the physmem available rescan and
1611 * reserve the lost portions in the bootmem maps. 1611 * reserve the lost portions in the bootmem maps.
1612 */ 1612 */
1613 for (i = 0; saved_sp_banks[i].num_bytes; i++) { 1613 for (i = 0; i < pavail_ents; i++) {
1614 unsigned long old_start, old_end; 1614 unsigned long old_start, old_end;
1615 1615
1616 old_start = saved_sp_banks[i].base_addr; 1616 old_start = pavail[i].phys_addr;
1617 old_end = old_start + 1617 old_end = old_start +
1618 saved_sp_banks[i].num_bytes; 1618 pavail[i].reg_size;
1619 while (old_start < old_end) { 1619 while (old_start < old_end) {
1620 int n; 1620 int n;
1621 1621
1622 for (n = 0; sp_banks[n].num_bytes; n++) { 1622 for (n = 0; pavail_rescan_ents; n++) {
1623 unsigned long new_start, new_end; 1623 unsigned long new_start, new_end;
1624 1624
1625 new_start = sp_banks[n].base_addr; 1625 new_start = pavail_rescan[n].phys_addr;
1626 new_end = new_start + sp_banks[n].num_bytes; 1626 new_end = new_start +
1627 pavail_rescan[n].reg_size;
1627 1628
1628 if (new_start <= old_start && 1629 if (new_start <= old_start &&
1629 new_end >= (old_start + PAGE_SIZE)) { 1630 new_end >= (old_start + PAGE_SIZE)) {
1630 set_bit (old_start >> 22, 1631 set_bit(old_start >> 22,
1631 sparc64_valid_addr_bitmap); 1632 sparc64_valid_addr_bitmap);
1632 goto do_next_page; 1633 goto do_next_page;
1633 } 1634 }
1634 } 1635 }
diff --git a/arch/sparc64/prom/Makefile b/arch/sparc64/prom/Makefile
index c7898a5ee456..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 cif.o 10 tree.o console.o printf.o p1275.o cif.o
diff --git a/arch/sparc64/prom/init.c b/arch/sparc64/prom/init.c
index 8b4b622d0909..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)
@@ -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/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}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 02:57:22 -0500