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authorIngo Molnar <mingo@elte.hu>2008-06-25 06:30:54 -0400
committerIngo Molnar <mingo@elte.hu>2008-06-25 06:30:54 -0400
commit0ed368c71aa65cba8d349432bd4dab4a9a2eb39c (patch)
tree7746534bafd57f6764bda8f26efc3929a4acf914 /drivers/watchdog
parent7aaaec38fcd9ef3172e69f8c19f20113830a8498 (diff)
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
Merge branch 'linus' into x86/kconfig
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/hpwdt.c182
1 files changed, 95 insertions, 87 deletions
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 6a63535fc04d..eaa3f2a79ff5 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -140,49 +140,53 @@ static struct pci_device_id hpwdt_devices[] = {
140}; 140};
141MODULE_DEVICE_TABLE(pci, hpwdt_devices); 141MODULE_DEVICE_TABLE(pci, hpwdt_devices);
142 142
143extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs, unsigned long *pRomEntry);
144
143#ifndef CONFIG_X86_64 145#ifndef CONFIG_X86_64
144/* --32 Bit Bios------------------------------------------------------------ */ 146/* --32 Bit Bios------------------------------------------------------------ */
145 147
146#define HPWDT_ARCH 32 148#define HPWDT_ARCH 32
147 149
148static void asminline_call(struct cmn_registers *pi86Regs, 150asm(".text \n\t"
149 unsigned long *pRomEntry) 151 ".align 4 \n"
150{ 152 "asminline_call: \n\t"
151 asm("pushl %ebp \n\t" 153 "pushl %ebp \n\t"
152 "movl %esp, %ebp \n\t" 154 "movl %esp, %ebp \n\t"
153 "pusha \n\t" 155 "pusha \n\t"
154 "pushf \n\t" 156 "pushf \n\t"
155 "push %es \n\t" 157 "push %es \n\t"
156 "push %ds \n\t" 158 "push %ds \n\t"
157 "pop %es \n\t" 159 "pop %es \n\t"
158 "movl 8(%ebp),%eax \n\t" 160 "movl 8(%ebp),%eax \n\t"
159 "movl 4(%eax),%ebx \n\t" 161 "movl 4(%eax),%ebx \n\t"
160 "movl 8(%eax),%ecx \n\t" 162 "movl 8(%eax),%ecx \n\t"
161 "movl 12(%eax),%edx \n\t" 163 "movl 12(%eax),%edx \n\t"
162 "movl 16(%eax),%esi \n\t" 164 "movl 16(%eax),%esi \n\t"
163 "movl 20(%eax),%edi \n\t" 165 "movl 20(%eax),%edi \n\t"
164 "movl (%eax),%eax \n\t" 166 "movl (%eax),%eax \n\t"
165 "push %cs \n\t" 167 "push %cs \n\t"
166 "call *12(%ebp) \n\t" 168 "call *12(%ebp) \n\t"
167 "pushf \n\t" 169 "pushf \n\t"
168 "pushl %eax \n\t" 170 "pushl %eax \n\t"
169 "movl 8(%ebp),%eax \n\t" 171 "movl 8(%ebp),%eax \n\t"
170 "movl %ebx,4(%eax) \n\t" 172 "movl %ebx,4(%eax) \n\t"
171 "movl %ecx,8(%eax) \n\t" 173 "movl %ecx,8(%eax) \n\t"
172 "movl %edx,12(%eax) \n\t" 174 "movl %edx,12(%eax) \n\t"
173 "movl %esi,16(%eax) \n\t" 175 "movl %esi,16(%eax) \n\t"
174 "movl %edi,20(%eax) \n\t" 176 "movl %edi,20(%eax) \n\t"
175 "movw %ds,24(%eax) \n\t" 177 "movw %ds,24(%eax) \n\t"
176 "movw %es,26(%eax) \n\t" 178 "movw %es,26(%eax) \n\t"
177 "popl %ebx \n\t" 179 "popl %ebx \n\t"
178 "movl %ebx,(%eax) \n\t" 180 "movl %ebx,(%eax) \n\t"
179 "popl %ebx \n\t" 181 "popl %ebx \n\t"
180 "movl %ebx,28(%eax) \n\t" 182 "movl %ebx,28(%eax) \n\t"
181 "pop %es \n\t" 183 "pop %es \n\t"
182 "popf \n\t" 184 "popf \n\t"
183 "popa \n\t" 185 "popa \n\t"
184 "leave \n\t" "ret"); 186 "leave \n\t"
185} 187 "ret \n\t"
188 ".previous");
189
186 190
187/* 191/*
188 * cru_detect 192 * cru_detect
@@ -333,43 +337,44 @@ static int __devinit detect_cru_service(void)
333 337
334#define HPWDT_ARCH 64 338#define HPWDT_ARCH 64
335 339
336static void asminline_call(struct cmn_registers *pi86Regs, 340asm(".text \n\t"
337 unsigned long *pRomEntry) 341 ".align 4 \n"
338{ 342 "asminline_call: \n\t"
339 asm("pushq %rbp \n\t" 343 "pushq %rbp \n\t"
340 "movq %rsp, %rbp \n\t" 344 "movq %rsp, %rbp \n\t"
341 "pushq %rax \n\t" 345 "pushq %rax \n\t"
342 "pushq %rbx \n\t" 346 "pushq %rbx \n\t"
343 "pushq %rdx \n\t" 347 "pushq %rdx \n\t"
344 "pushq %r12 \n\t" 348 "pushq %r12 \n\t"
345 "pushq %r9 \n\t" 349 "pushq %r9 \n\t"
346 "movq %rsi, %r12 \n\t" 350 "movq %rsi, %r12 \n\t"
347 "movq %rdi, %r9 \n\t" 351 "movq %rdi, %r9 \n\t"
348 "movl 4(%r9),%ebx \n\t" 352 "movl 4(%r9),%ebx \n\t"
349 "movl 8(%r9),%ecx \n\t" 353 "movl 8(%r9),%ecx \n\t"
350 "movl 12(%r9),%edx \n\t" 354 "movl 12(%r9),%edx \n\t"
351 "movl 16(%r9),%esi \n\t" 355 "movl 16(%r9),%esi \n\t"
352 "movl 20(%r9),%edi \n\t" 356 "movl 20(%r9),%edi \n\t"
353 "movl (%r9),%eax \n\t" 357 "movl (%r9),%eax \n\t"
354 "call *%r12 \n\t" 358 "call *%r12 \n\t"
355 "pushfq \n\t" 359 "pushfq \n\t"
356 "popq %r12 \n\t" 360 "popq %r12 \n\t"
357 "popfq \n\t" 361 "popfq \n\t"
358 "movl %eax, (%r9) \n\t" 362 "movl %eax, (%r9) \n\t"
359 "movl %ebx, 4(%r9) \n\t" 363 "movl %ebx, 4(%r9) \n\t"
360 "movl %ecx, 8(%r9) \n\t" 364 "movl %ecx, 8(%r9) \n\t"
361 "movl %edx, 12(%r9) \n\t" 365 "movl %edx, 12(%r9) \n\t"
362 "movl %esi, 16(%r9) \n\t" 366 "movl %esi, 16(%r9) \n\t"
363 "movl %edi, 20(%r9) \n\t" 367 "movl %edi, 20(%r9) \n\t"
364 "movq %r12, %rax \n\t" 368 "movq %r12, %rax \n\t"
365 "movl %eax, 28(%r9) \n\t" 369 "movl %eax, 28(%r9) \n\t"
366 "popq %r9 \n\t" 370 "popq %r9 \n\t"
367 "popq %r12 \n\t" 371 "popq %r12 \n\t"
368 "popq %rdx \n\t" 372 "popq %rdx \n\t"
369 "popq %rbx \n\t" 373 "popq %rbx \n\t"
370 "popq %rax \n\t" 374 "popq %rax \n\t"
371 "leave \n\t" "ret"); 375 "leave \n\t"
372} 376 "ret \n\t"
377 ".previous");
373 378
374/* 379/*
375 * dmi_find_cru 380 * dmi_find_cru
@@ -418,20 +423,23 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
418 static unsigned long rom_pl; 423 static unsigned long rom_pl;
419 static int die_nmi_called; 424 static int die_nmi_called;
420 425
421 if (ulReason == DIE_NMI || ulReason == DIE_NMI_IPI) { 426 if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
422 spin_lock_irqsave(&rom_lock, rom_pl); 427 return NOTIFY_OK;
423 if (!die_nmi_called) 428
424 asminline_call(&cmn_regs, cru_rom_addr); 429 spin_lock_irqsave(&rom_lock, rom_pl);
425 die_nmi_called = 1; 430 if (!die_nmi_called)
426 spin_unlock_irqrestore(&rom_lock, rom_pl); 431 asminline_call(&cmn_regs, cru_rom_addr);
427 if (cmn_regs.u1.ral != 0) { 432 die_nmi_called = 1;
428 panic("An NMI occurred, please see the Integrated " 433 spin_unlock_irqrestore(&rom_lock, rom_pl);
429 "Management Log for details.\n"); 434 if (cmn_regs.u1.ral == 0) {
430 } 435 printk(KERN_WARNING "hpwdt: An NMI occurred, "
436 "but unable to determine source.\n");
437 } else {
438 panic("An NMI occurred, please see the Integrated "
439 "Management Log for details.\n");
431 } 440 }
432 441
433 die_nmi_called = 0; 442 return NOTIFY_STOP;
434 return NOTIFY_DONE;
435} 443}
436 444
437/* 445/*
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-06 04:19:57 -0400