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Diffstat (limited to 'i386/i386at/gpl/linux/include/asm/irq.h')
-rw-r--r--i386/i386at/gpl/linux/include/asm/irq.h346
1 files changed, 0 insertions, 346 deletions
diff --git a/i386/i386at/gpl/linux/include/asm/irq.h b/i386/i386at/gpl/linux/include/asm/irq.h
deleted file mode 100644
index 8fd44b4..0000000
--- a/i386/i386at/gpl/linux/include/asm/irq.h
+++ /dev/null
@@ -1,346 +0,0 @@
-#ifndef _ASM_IRQ_H
-#define _ASM_IRQ_H
-
-/*
- * linux/include/asm/irq.h
- *
- * (C) 1992, 1993 Linus Torvalds
- *
- * IRQ/IPI changes taken from work by Thomas Radke <tomsoft@informatik.tu-chemnitz.de>
- */
-
-#include <linux/linkage.h>
-#include <asm/segment.h>
-
-#define NR_IRQS 16
-
-extern void disable_irq(unsigned int);
-extern void enable_irq(unsigned int);
-
-#define __STR(x) #x
-#define STR(x) __STR(x)
-
-#define SAVE_ALL \
- "cld\n\t" \
- "push %gs\n\t" \
- "push %fs\n\t" \
- "push %es\n\t" \
- "push %ds\n\t" \
- "pushl %eax\n\t" \
- "pushl %ebp\n\t" \
- "pushl %edi\n\t" \
- "pushl %esi\n\t" \
- "pushl %edx\n\t" \
- "pushl %ecx\n\t" \
- "pushl %ebx\n\t" \
- "movl $" STR(KERNEL_DS) ",%edx\n\t" \
- "mov %dx,%ds\n\t" \
- "mov %dx,%es\n\t" \
- "movl $" STR(USER_DS) ",%edx\n\t" \
- "mov %dx,%fs\n\t" \
- "movl $0,%edx\n\t" \
- "movl %edx,%db7\n\t"
-
-/*
- * SAVE_MOST/RESTORE_MOST is used for the faster version of IRQ handlers,
- * installed by using the SA_INTERRUPT flag. These kinds of IRQ's don't
- * call the routines that do signal handling etc on return, and can have
- * more relaxed register-saving etc. They are also atomic, and are thus
- * suited for small, fast interrupts like the serial lines or the harddisk
- * drivers, which don't actually need signal handling etc.
- *
- * Also note that we actually save only those registers that are used in
- * C subroutines (%eax, %edx and %ecx), so if you do something weird,
- * you're on your own. The only segments that are saved (not counting the
- * automatic stack and code segment handling) are %ds and %es, and they
- * point to kernel space. No messing around with %fs here.
- */
-#define SAVE_MOST \
- "cld\n\t" \
- "push %es\n\t" \
- "push %ds\n\t" \
- "pushl %eax\n\t" \
- "pushl %edx\n\t" \
- "pushl %ecx\n\t" \
- "movl $" STR(KERNEL_DS) ",%edx\n\t" \
- "mov %dx,%ds\n\t" \
- "mov %dx,%es\n\t"
-
-#define RESTORE_MOST \
- "popl %ecx\n\t" \
- "popl %edx\n\t" \
- "popl %eax\n\t" \
- "pop %ds\n\t" \
- "pop %es\n\t" \
- "iret"
-
-/*
- * The "inb" instructions are not needed, but seem to change the timings
- * a bit - without them it seems that the harddisk driver won't work on
- * all hardware. Arghh.
- */
-#define ACK_FIRST(mask) \
- "inb $0x21,%al\n\t" \
- "jmp 1f\n" \
- "1:\tjmp 1f\n" \
- "1:\torb $" #mask ","SYMBOL_NAME_STR(cache_21)"\n\t" \
- "movb "SYMBOL_NAME_STR(cache_21)",%al\n\t" \
- "outb %al,$0x21\n\t" \
- "jmp 1f\n" \
- "1:\tjmp 1f\n" \
- "1:\tmovb $0x20,%al\n\t" \
- "outb %al,$0x20\n\t"
-
-#define ACK_SECOND(mask) \
- "inb $0xA1,%al\n\t" \
- "jmp 1f\n" \
- "1:\tjmp 1f\n" \
- "1:\torb $" #mask ","SYMBOL_NAME_STR(cache_A1)"\n\t" \
- "movb "SYMBOL_NAME_STR(cache_A1)",%al\n\t" \
- "outb %al,$0xA1\n\t" \
- "jmp 1f\n" \
- "1:\tjmp 1f\n" \
- "1:\tmovb $0x20,%al\n\t" \
- "outb %al,$0xA0\n\t" \
- "jmp 1f\n" \
- "1:\tjmp 1f\n" \
- "1:\toutb %al,$0x20\n\t"
-
-#define UNBLK_FIRST(mask) \
- "inb $0x21,%al\n\t" \
- "jmp 1f\n" \
- "1:\tjmp 1f\n" \
- "1:\tandb $~(" #mask "),"SYMBOL_NAME_STR(cache_21)"\n\t" \
- "movb "SYMBOL_NAME_STR(cache_21)",%al\n\t" \
- "outb %al,$0x21\n\t"
-
-#define UNBLK_SECOND(mask) \
- "inb $0xA1,%al\n\t" \
- "jmp 1f\n" \
- "1:\tjmp 1f\n" \
- "1:\tandb $~(" #mask "),"SYMBOL_NAME_STR(cache_A1)"\n\t" \
- "movb "SYMBOL_NAME_STR(cache_A1)",%al\n\t" \
- "outb %al,$0xA1\n\t"
-
-#define IRQ_NAME2(nr) nr##_interrupt(void)
-#define IRQ_NAME(nr) IRQ_NAME2(IRQ##nr)
-#define FAST_IRQ_NAME(nr) IRQ_NAME2(fast_IRQ##nr)
-#define BAD_IRQ_NAME(nr) IRQ_NAME2(bad_IRQ##nr)
-
-#ifdef __SMP__
-
-#ifndef __SMP_PROF__
-#define SMP_PROF_INT_SPINS
-#define SMP_PROF_IPI_CNT
-#else
-#define SMP_PROF_INT_SPINS "incl "SYMBOL_NAME_STR(smp_spins)"(,%eax,4)\n\t"
-#define SMP_PROF_IPI_CNT "incl "SYMBOL_NAME_STR(ipi_count)"\n\t"
-#endif
-
-#define GET_PROCESSOR_ID \
- "movl "SYMBOL_NAME_STR(apic_reg)", %edx\n\t" \
- "movl 32(%edx), %eax\n\t" \
- "shrl $24,%eax\n\t" \
- "andb $0x0F,%al\n"
-
-#define ENTER_KERNEL \
- "pushl %eax\n\t" \
- "pushl %edx\n\t" \
- "pushfl\n\t" \
- "cli\n\t" \
- GET_PROCESSOR_ID \
- "1: " \
- "lock\n\t" \
- "btsl $0, "SYMBOL_NAME_STR(kernel_flag)"\n\t" \
- "jnc 3f\n\t" \
- "cmpb "SYMBOL_NAME_STR(active_kernel_processor)", %al\n\t" \
- "je 4f\n\t" \
- "2: " \
- SMP_PROF_INT_SPINS \
- "btl %al, "SYMBOL_NAME_STR(smp_invalidate_needed)"\n\t" \
- "jnc 5f\n\t" \
- "lock\n\t" \
- "btrl %al, "SYMBOL_NAME_STR(smp_invalidate_needed)"\n\t" \
- "jnc 5f\n\t" \
- "movl %cr3,%edx\n\t" \
- "movl %edx,%cr3\n" \
- "5: btl $0, "SYMBOL_NAME_STR(kernel_flag)"\n\t" \
- "jc 2b\n\t" \
- "jmp 1b\n\t" \
- "3: " \
- "movb %al, "SYMBOL_NAME_STR(active_kernel_processor)"\n\t" \
- "4: " \
- "incl "SYMBOL_NAME_STR(kernel_counter)"\n\t" \
- "popfl\n\t" \
- "popl %edx\n\t" \
- "popl %eax\n\t"
-
-#define LEAVE_KERNEL \
- "pushfl\n\t" \
- "cli\n\t" \
- "decl "SYMBOL_NAME_STR(kernel_counter)"\n\t" \
- "jnz 1f\n\t" \
- "movb $" STR (NO_PROC_ID) ", "SYMBOL_NAME_STR(active_kernel_processor)"\n\t" \
- "lock\n\t" \
- "btrl $0, "SYMBOL_NAME_STR(kernel_flag)"\n\t" \
- "1: " \
- "popfl\n\t"
-
-
-/*
- * the syscall count inc is a gross hack because ret_from_syscall is used by both irq and
- * syscall return paths (urghh).
- */
-
-#define BUILD_IRQ(chip,nr,mask) \
-asmlinkage void IRQ_NAME(nr); \
-asmlinkage void FAST_IRQ_NAME(nr); \
-asmlinkage void BAD_IRQ_NAME(nr); \
-__asm__( \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(IRQ) #nr "_interrupt:\n\t" \
- "pushl $-"#nr"-2\n\t" \
- SAVE_ALL \
- ENTER_KERNEL \
- ACK_##chip(mask) \
- "incl "SYMBOL_NAME_STR(intr_count)"\n\t"\
- "sti\n\t" \
- "movl %esp,%ebx\n\t" \
- "pushl %ebx\n\t" \
- "pushl $" #nr "\n\t" \
- "call "SYMBOL_NAME_STR(do_IRQ)"\n\t" \
- "addl $8,%esp\n\t" \
- "cli\n\t" \
- UNBLK_##chip(mask) \
- "decl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- "incl "SYMBOL_NAME_STR(syscall_count)"\n\t" \
- "jmp ret_from_sys_call\n" \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(fast_IRQ) #nr "_interrupt:\n\t" \
- SAVE_MOST \
- ENTER_KERNEL \
- ACK_##chip(mask) \
- "incl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- "pushl $" #nr "\n\t" \
- "call "SYMBOL_NAME_STR(do_fast_IRQ)"\n\t" \
- "addl $4,%esp\n\t" \
- "cli\n\t" \
- UNBLK_##chip(mask) \
- "decl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- LEAVE_KERNEL \
- RESTORE_MOST \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(bad_IRQ) #nr "_interrupt:\n\t" \
- SAVE_MOST \
- ENTER_KERNEL \
- ACK_##chip(mask) \
- LEAVE_KERNEL \
- RESTORE_MOST);
-
-
-/*
- * Message pass must be a fast IRQ..
- */
-
-#define BUILD_MSGIRQ(chip,nr,mask) \
-asmlinkage void IRQ_NAME(nr); \
-asmlinkage void FAST_IRQ_NAME(nr); \
-asmlinkage void BAD_IRQ_NAME(nr); \
-__asm__( \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(IRQ) #nr "_interrupt:\n\t" \
- "pushl $-"#nr"-2\n\t" \
- SAVE_ALL \
- ENTER_KERNEL \
- ACK_##chip(mask) \
- "incl "SYMBOL_NAME_STR(intr_count)"\n\t"\
- "sti\n\t" \
- "movl %esp,%ebx\n\t" \
- "pushl %ebx\n\t" \
- "pushl $" #nr "\n\t" \
- "call "SYMBOL_NAME_STR(do_IRQ)"\n\t" \
- "addl $8,%esp\n\t" \
- "cli\n\t" \
- UNBLK_##chip(mask) \
- "decl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- "incl "SYMBOL_NAME_STR(syscall_count)"\n\t" \
- "jmp ret_from_sys_call\n" \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(fast_IRQ) #nr "_interrupt:\n\t" \
- SAVE_MOST \
- ACK_##chip(mask) \
- SMP_PROF_IPI_CNT \
- "pushl $" #nr "\n\t" \
- "call "SYMBOL_NAME_STR(do_fast_IRQ)"\n\t" \
- "addl $4,%esp\n\t" \
- "cli\n\t" \
- UNBLK_##chip(mask) \
- RESTORE_MOST \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(bad_IRQ) #nr "_interrupt:\n\t" \
- SAVE_MOST \
- ACK_##chip(mask) \
- RESTORE_MOST);
-
-#define BUILD_RESCHEDIRQ(nr) \
-asmlinkage void IRQ_NAME(nr); \
-__asm__( \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(IRQ) #nr "_interrupt:\n\t" \
- "pushl $-"#nr"-2\n\t" \
- SAVE_ALL \
- ENTER_KERNEL \
- "incl "SYMBOL_NAME_STR(intr_count)"\n\t"\
- "sti\n\t" \
- "movl %esp,%ebx\n\t" \
- "pushl %ebx\n\t" \
- "pushl $" #nr "\n\t" \
- "call "SYMBOL_NAME_STR(smp_reschedule_irq)"\n\t" \
- "addl $8,%esp\n\t" \
- "cli\n\t" \
- "decl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- "incl "SYMBOL_NAME_STR(syscall_count)"\n\t" \
- "jmp ret_from_sys_call\n");
-#else
-
-#define BUILD_IRQ(chip,nr,mask) \
-asmlinkage void IRQ_NAME(nr); \
-asmlinkage void FAST_IRQ_NAME(nr); \
-asmlinkage void BAD_IRQ_NAME(nr); \
-__asm__( \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(IRQ) #nr "_interrupt:\n\t" \
- "pushl $-"#nr"-2\n\t" \
- SAVE_ALL \
- ACK_##chip(mask) \
- "incl "SYMBOL_NAME_STR(intr_count)"\n\t"\
- "sti\n\t" \
- "movl %esp,%ebx\n\t" \
- "pushl %ebx\n\t" \
- "pushl $" #nr "\n\t" \
- "call "SYMBOL_NAME_STR(do_IRQ)"\n\t" \
- "addl $8,%esp\n\t" \
- "cli\n\t" \
- UNBLK_##chip(mask) \
- "decl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- "jmp ret_from_sys_call\n" \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(fast_IRQ) #nr "_interrupt:\n\t" \
- SAVE_MOST \
- ACK_##chip(mask) \
- "incl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- "pushl $" #nr "\n\t" \
- "call "SYMBOL_NAME_STR(do_fast_IRQ)"\n\t" \
- "addl $4,%esp\n\t" \
- "cli\n\t" \
- UNBLK_##chip(mask) \
- "decl "SYMBOL_NAME_STR(intr_count)"\n\t" \
- RESTORE_MOST \
-"\n"__ALIGN_STR"\n" \
-SYMBOL_NAME_STR(bad_IRQ) #nr "_interrupt:\n\t" \
- SAVE_MOST \
- ACK_##chip(mask) \
- RESTORE_MOST);
-
-#endif
-#endif
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