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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[pandora-kernel.git] / drivers / watchdog / hpwdt.c
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 6a63535..eaa3f2a 100644 (file)
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -140,49 +140,53 @@ static struct pci_device_id hpwdt_devices[] = {
 };
 MODULE_DEVICE_TABLE(pci, hpwdt_devices);
 
+extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs, unsigned long *pRomEntry);
+
 #ifndef CONFIG_X86_64
 /* --32 Bit Bios------------------------------------------------------------ */
 
 #define HPWDT_ARCH     32
 
-static void asminline_call(struct cmn_registers *pi86Regs,
-                          unsigned long *pRomEntry)
-{
-       asm("pushl       %ebp               \n\t"
-           "movl        %esp, %ebp         \n\t"
-           "pusha                          \n\t"
-           "pushf                          \n\t"
-           "push        %es                \n\t"
-           "push        %ds                \n\t"
-           "pop         %es                \n\t"
-           "movl        8(%ebp),%eax       \n\t"
-           "movl        4(%eax),%ebx       \n\t"
-           "movl        8(%eax),%ecx       \n\t"
-           "movl        12(%eax),%edx      \n\t"
-           "movl        16(%eax),%esi      \n\t"
-           "movl        20(%eax),%edi      \n\t"
-           "movl        (%eax),%eax        \n\t"
-           "push        %cs                \n\t"
-           "call        *12(%ebp)          \n\t"
-           "pushf                          \n\t"
-           "pushl       %eax               \n\t"
-           "movl        8(%ebp),%eax       \n\t"
-           "movl        %ebx,4(%eax)       \n\t"
-           "movl        %ecx,8(%eax)       \n\t"
-           "movl        %edx,12(%eax)      \n\t"
-           "movl        %esi,16(%eax)      \n\t"
-           "movl        %edi,20(%eax)      \n\t"
-           "movw        %ds,24(%eax)       \n\t"
-           "movw        %es,26(%eax)       \n\t"
-           "popl        %ebx               \n\t"
-           "movl        %ebx,(%eax)        \n\t"
-           "popl        %ebx               \n\t"
-           "movl        %ebx,28(%eax)      \n\t"
-           "pop         %es                \n\t"
-           "popf                           \n\t"
-           "popa                           \n\t"
-           "leave                          \n\t" "ret");
-}
+asm(".text                          \n\t"
+    ".align 4                       \n"
+    "asminline_call:                \n\t"
+    "pushl       %ebp               \n\t"
+    "movl        %esp, %ebp         \n\t"
+    "pusha                          \n\t"
+    "pushf                          \n\t"
+    "push        %es                \n\t"
+    "push        %ds                \n\t"
+    "pop         %es                \n\t"
+    "movl        8(%ebp),%eax       \n\t"
+    "movl        4(%eax),%ebx       \n\t"
+    "movl        8(%eax),%ecx       \n\t"
+    "movl        12(%eax),%edx      \n\t"
+    "movl        16(%eax),%esi      \n\t"
+    "movl        20(%eax),%edi      \n\t"
+    "movl        (%eax),%eax        \n\t"
+    "push        %cs                \n\t"
+    "call        *12(%ebp)          \n\t"
+    "pushf                          \n\t"
+    "pushl       %eax               \n\t"
+    "movl        8(%ebp),%eax       \n\t"
+    "movl        %ebx,4(%eax)       \n\t"
+    "movl        %ecx,8(%eax)       \n\t"
+    "movl        %edx,12(%eax)      \n\t"
+    "movl        %esi,16(%eax)      \n\t"
+    "movl        %edi,20(%eax)      \n\t"
+    "movw        %ds,24(%eax)       \n\t"
+    "movw        %es,26(%eax)       \n\t"
+    "popl        %ebx               \n\t"
+    "movl        %ebx,(%eax)        \n\t"
+    "popl        %ebx               \n\t"
+    "movl        %ebx,28(%eax)      \n\t"
+    "pop         %es                \n\t"
+    "popf                           \n\t"
+    "popa                           \n\t"
+    "leave                          \n\t"
+    "ret                            \n\t"
+    ".previous");
+
 
 /*
  *     cru_detect
@@ -333,43 +337,44 @@ static int __devinit detect_cru_service(void)
 
 #define HPWDT_ARCH     64
 
-static void asminline_call(struct cmn_registers *pi86Regs,
-                          unsigned long *pRomEntry)
-{
-       asm("pushq      %rbp            \n\t"
-           "movq       %rsp, %rbp      \n\t"
-           "pushq      %rax            \n\t"
-           "pushq      %rbx            \n\t"
-           "pushq      %rdx            \n\t"
-           "pushq      %r12            \n\t"
-           "pushq      %r9             \n\t"
-           "movq       %rsi, %r12      \n\t"
-           "movq       %rdi, %r9       \n\t"
-           "movl       4(%r9),%ebx     \n\t"
-           "movl       8(%r9),%ecx     \n\t"
-           "movl       12(%r9),%edx    \n\t"
-           "movl       16(%r9),%esi    \n\t"
-           "movl       20(%r9),%edi    \n\t"
-           "movl       (%r9),%eax      \n\t"
-           "call       *%r12           \n\t"
-           "pushfq                     \n\t"
-           "popq        %r12           \n\t"
-           "popfq                      \n\t"
-           "movl       %eax, (%r9)     \n\t"
-           "movl       %ebx, 4(%r9)    \n\t"
-           "movl       %ecx, 8(%r9)    \n\t"
-           "movl       %edx, 12(%r9)   \n\t"
-           "movl       %esi, 16(%r9)   \n\t"
-           "movl       %edi, 20(%r9)   \n\t"
-           "movq       %r12, %rax      \n\t"
-           "movl       %eax, 28(%r9)   \n\t"
-           "popq       %r9             \n\t"
-           "popq       %r12            \n\t"
-           "popq       %rdx            \n\t"
-           "popq       %rbx            \n\t"
-           "popq       %rax            \n\t"
-           "leave                      \n\t" "ret");
-}
+asm(".text                      \n\t"
+    ".align 4                   \n"
+    "asminline_call:            \n\t"
+    "pushq      %rbp            \n\t"
+    "movq       %rsp, %rbp      \n\t"
+    "pushq      %rax            \n\t"
+    "pushq      %rbx            \n\t"
+    "pushq      %rdx            \n\t"
+    "pushq      %r12            \n\t"
+    "pushq      %r9             \n\t"
+    "movq       %rsi, %r12      \n\t"
+    "movq       %rdi, %r9       \n\t"
+    "movl       4(%r9),%ebx     \n\t"
+    "movl       8(%r9),%ecx     \n\t"
+    "movl       12(%r9),%edx    \n\t"
+    "movl       16(%r9),%esi    \n\t"
+    "movl       20(%r9),%edi    \n\t"
+    "movl       (%r9),%eax      \n\t"
+    "call       *%r12           \n\t"
+    "pushfq                     \n\t"
+    "popq        %r12           \n\t"
+    "popfq                      \n\t"
+    "movl       %eax, (%r9)     \n\t"
+    "movl       %ebx, 4(%r9)    \n\t"
+    "movl       %ecx, 8(%r9)    \n\t"
+    "movl       %edx, 12(%r9)   \n\t"
+    "movl       %esi, 16(%r9)   \n\t"
+    "movl       %edi, 20(%r9)   \n\t"
+    "movq       %r12, %rax      \n\t"
+    "movl       %eax, 28(%r9)   \n\t"
+    "popq       %r9             \n\t"
+    "popq       %r12            \n\t"
+    "popq       %rdx            \n\t"
+    "popq       %rbx            \n\t"
+    "popq       %rax            \n\t"
+    "leave                      \n\t"
+    "ret                        \n\t"
+    ".previous");
 
 /*
  *     dmi_find_cru
@@ -418,20 +423,23 @@ static int hpwdt_pretimeout(struct notifier_block *nb, unsigned long ulReason,
        static unsigned long rom_pl;
        static int die_nmi_called;
 
-       if (ulReason == DIE_NMI || ulReason == DIE_NMI_IPI) {
-               spin_lock_irqsave(&rom_lock, rom_pl);
-               if (!die_nmi_called)
-                       asminline_call(&cmn_regs, cru_rom_addr);
-               die_nmi_called = 1;
-               spin_unlock_irqrestore(&rom_lock, rom_pl);
-               if (cmn_regs.u1.ral != 0) {
-                       panic("An NMI occurred, please see the Integrated "
-                             "Management Log for details.\n");
-               }
+       if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
+               return NOTIFY_OK;
+
+       spin_lock_irqsave(&rom_lock, rom_pl);
+       if (!die_nmi_called)
+               asminline_call(&cmn_regs, cru_rom_addr);
+       die_nmi_called = 1;
+       spin_unlock_irqrestore(&rom_lock, rom_pl);
+       if (cmn_regs.u1.ral == 0) {
+               printk(KERN_WARNING "hpwdt: An NMI occurred, "
+                      "but unable to determine source.\n");
+       } else {
+               panic("An NMI occurred, please see the Integrated "
+                       "Management Log for details.\n");
        }
 
-       die_nmi_called = 0;
-       return NOTIFY_DONE;
+       return NOTIFY_STOP;
 }
 
 /*
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