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Diffstat (limited to 'include/asm-cris/arch-v32/irq.h')
-rw-r--r--include/asm-cris/arch-v32/irq.h124
1 files changed, 0 insertions, 124 deletions
diff --git a/include/asm-cris/arch-v32/irq.h b/include/asm-cris/arch-v32/irq.h
deleted file mode 100644
index 9e4c9fbdfdd..00000000000
--- a/include/asm-cris/arch-v32/irq.h
+++ /dev/null
@@ -1,124 +0,0 @@
-#ifndef _ASM_ARCH_IRQ_H
-#define _ASM_ARCH_IRQ_H
-
-#include <hwregs/intr_vect.h>
-
-/* Number of non-cpu interrupts. */
-#define NR_IRQS NBR_INTR_VECT /* Exceptions + IRQs */
-#define FIRST_IRQ 0x31 /* Exception number for first IRQ */
-#define NR_REAL_IRQS (NBR_INTR_VECT - FIRST_IRQ) /* IRQs */
-#if NR_REAL_IRQS > 32
-#define MACH_IRQS 64
-#else
-#define MACH_IRQS 32
-#endif
-
-#ifndef __ASSEMBLY__
-/* Global IRQ vector. */
-typedef void (*irqvectptr)(void);
-
-struct etrax_interrupt_vector {
- irqvectptr v[256];
-};
-
-extern struct etrax_interrupt_vector *etrax_irv; /* head.S */
-
-void mask_irq(int irq);
-void unmask_irq(int irq);
-
-void set_exception_vector(int n, irqvectptr addr);
-
-/* Save registers so that they match pt_regs. */
-#define SAVE_ALL \
- "subq 12,$sp\n\t" \
- "move $erp,[$sp]\n\t" \
- "subq 4,$sp\n\t" \
- "move $srp,[$sp]\n\t" \
- "subq 4,$sp\n\t" \
- "move $ccs,[$sp]\n\t" \
- "subq 4,$sp\n\t" \
- "move $spc,[$sp]\n\t" \
- "subq 4,$sp\n\t" \
- "move $mof,[$sp]\n\t" \
- "subq 4,$sp\n\t" \
- "move $srs,[$sp]\n\t" \
- "subq 4,$sp\n\t" \
- "move.d $acr,[$sp]\n\t" \
- "subq 14*4,$sp\n\t" \
- "movem $r13,[$sp]\n\t" \
- "subq 4,$sp\n\t" \
- "move.d $r10,[$sp]\n"
-
-#define STR2(x) #x
-#define STR(x) STR2(x)
-
-#define IRQ_NAME2(nr) nr##_interrupt(void)
-#define IRQ_NAME(nr) IRQ_NAME2(IRQ##nr)
-
-/*
- * The reason for setting the S-bit when debugging the kernel is that we want
- * hardware breakpoints to remain active while we are in an exception handler.
- * Note that we cannot simply copy S1, since we may come here from user-space,
- * or any context where the S-bit wasn't set.
- */
-#ifdef CONFIG_ETRAX_KGDB
-#define KGDB_FIXUP \
- "move $ccs, $r10\n\t" \
- "or.d (1<<9), $r10\n\t" \
- "move $r10, $ccs\n\t"
-#else
-#define KGDB_FIXUP ""
-#endif
-
-/*
- * Make sure the causing IRQ is blocked, then call do_IRQ. After that, unblock
- * and jump to ret_from_intr which is found in entry.S.
- *
- * The reason for blocking the IRQ is to allow an sti() before the handler,
- * which will acknowledge the interrupt, is run. The actual blocking is made
- * by crisv32_do_IRQ.
- */
-#define BUILD_IRQ(nr) \
-void IRQ_NAME(nr); \
-__asm__ ( \
- ".text\n\t" \
- "IRQ" #nr "_interrupt:\n\t" \
- SAVE_ALL \
- KGDB_FIXUP \
- "move.d "#nr",$r10\n\t" \
- "move.d $sp, $r12\n\t" \
- "jsr crisv32_do_IRQ\n\t" \
- "moveq 1, $r11\n\t" \
- "jump ret_from_intr\n\t" \
- "nop\n\t");
-/*
- * This is subtle. The timer interrupt is crucial and it should not be disabled
- * for too long. However, if it had been a normal interrupt as per BUILD_IRQ, it
- * would have been BLOCK'ed, and then softirq's are run before we return here to
- * UNBLOCK. If the softirq's take too much time to run, the timer irq won't run
- * and the watchdog will kill us.
- *
- * Furthermore, if a lot of other irq's occur before we return here, the
- * multiple_irq handler is run and it prioritizes the timer interrupt. However
- * if we had BLOCK'edit here, we would not get the multiple_irq at all.
- *
- * The non-blocking here is based on the knowledge that the timer interrupt is
- * registred as a fast interrupt (IRQF_DISABLED) so that we _know_ there will not
- * be an sti() before the timer irq handler is run to acknowledge the interrupt.
- */
-#define BUILD_TIMER_IRQ(nr, mask) \
-void IRQ_NAME(nr); \
-__asm__ ( \
- ".text\n\t" \
- "IRQ" #nr "_interrupt:\n\t" \
- SAVE_ALL \
- KGDB_FIXUP \
- "move.d "#nr",$r10\n\t" \
- "move.d $sp,$r12\n\t" \
- "jsr crisv32_do_IRQ\n\t" \
- "moveq 0,$r11\n\t" \
- "jump ret_from_intr\n\t" \
- "nop\n\t");
-
-#endif /* __ASSEMBLY__ */
-#endif /* _ASM_ARCH_IRQ_H */