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| author | H. Peter Anvin <hpa@zytor.com> | 2008-01-30 13:30:56 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:30:56 +0100 |
| commit | 65ea5b0349903585bfed9720fa06f5edb4f1cd25 (patch) | |
| tree | 6c252228c34416b7e2077f23475de34500c2ab8a /arch/x86/kernel/irq_32.c | |
| parent | 53756d3722172815f52272b28c6d5d5e9639adde (diff) | |
| download | op-kernel-dev-65ea5b0349903585bfed9720fa06f5edb4f1cd25.zip op-kernel-dev-65ea5b0349903585bfed9720fa06f5edb4f1cd25.tar.gz | |
x86: rename the struct pt_regs members for 32/64-bit consistency
We have a lot of code which differs only by the naming of specific
members of structures that contain registers. In order to enable
additional unifications, this patch drops the e- or r- size prefix
from the register names in struct pt_regs, and drops the x- prefixes
for segment registers on the 32-bit side.
This patch also performs the equivalent renames in some additional
places that might be candidates for unification in the future.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/irq_32.c')
| -rw-r--r-- | arch/x86/kernel/irq_32.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c index d3fde94..b49616b 100644 --- a/arch/x86/kernel/irq_32.c +++ b/arch/x86/kernel/irq_32.c @@ -70,7 +70,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs) { struct pt_regs *old_regs; /* high bit used in ret_from_ code */ - int irq = ~regs->orig_eax; + int irq = ~regs->orig_ax; struct irq_desc *desc = irq_desc + irq; #ifdef CONFIG_4KSTACKS union irq_ctx *curctx, *irqctx; @@ -88,13 +88,13 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs) #ifdef CONFIG_DEBUG_STACKOVERFLOW /* Debugging check for stack overflow: is there less than 1KB free? */ { - long esp; + long sp; __asm__ __volatile__("andl %%esp,%0" : - "=r" (esp) : "0" (THREAD_SIZE - 1)); - if (unlikely(esp < (sizeof(struct thread_info) + STACK_WARN))) { + "=r" (sp) : "0" (THREAD_SIZE - 1)); + if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { printk("do_IRQ: stack overflow: %ld\n", - esp - sizeof(struct thread_info)); + sp - sizeof(struct thread_info)); dump_stack(); } } @@ -112,7 +112,7 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs) * current stack (which is the irq stack already after all) */ if (curctx != irqctx) { - int arg1, arg2, ebx; + int arg1, arg2, bx; /* build the stack frame on the IRQ stack */ isp = (u32*) ((char*)irqctx + sizeof(*irqctx)); @@ -128,10 +128,10 @@ fastcall unsigned int do_IRQ(struct pt_regs *regs) (curctx->tinfo.preempt_count & SOFTIRQ_MASK); asm volatile( - " xchgl %%ebx,%%esp \n" - " call *%%edi \n" - " movl %%ebx,%%esp \n" - : "=a" (arg1), "=d" (arg2), "=b" (ebx) + " xchgl %%ebx,%%esp \n" + " call *%%edi \n" + " movl %%ebx,%%esp \n" + : "=a" (arg1), "=d" (arg2), "=b" (bx) : "0" (irq), "1" (desc), "2" (isp), "D" (desc->handle_irq) : "memory", "cc" |
