diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/v850/kernel/intv.S |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/v850/kernel/intv.S')
-rw-r--r-- | arch/v850/kernel/intv.S | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/v850/kernel/intv.S b/arch/v850/kernel/intv.S new file mode 100644 index 00000000000..671e4c6150d --- /dev/null +++ b/arch/v850/kernel/intv.S @@ -0,0 +1,87 @@ +/* + * arch/v850/kernel/intv.S -- Interrupt vectors + * + * Copyright (C) 2001,02,03 NEC Electronics Corporation + * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#include <asm/clinkage.h> +#include <asm/irq.h> +#include <asm/machdep.h> +#include <asm/entry.h> + +#ifdef CONFIG_V850E_HIGHRES_TIMER +#include <asm/highres_timer.h> +#endif + +/* Jump to an interrupt/trap handler. These handlers (defined in entry.S) + expect the stack-pointer to be saved in ENTRY_SP, so we use sp to do an + indirect jump (which avoids problems when the handler is more than a signed + 22-bit offset away). */ +#define JUMP_TO_HANDLER(name, sp_save_loc) \ + st.w sp, sp_save_loc; \ + mov hilo(name), sp; \ + jmp [sp] + + + /* Reset vector. */ + .section .intv.reset, "ax" + .org 0x0 + mov hilo(C_SYMBOL_NAME(start)), r1; + jmp [r1] + + + /* Generic interrupt vectors. */ + .section .intv.common, "ax" + .balign 0x10 + JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x10 - NMI0 + .balign 0x10 + JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x20 - NMI1 + .balign 0x10 + JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x30 - NMI2 + + .balign 0x10 + JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x40 - TRAP0n + .balign 0x10 + JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x50 - TRAP1n + + .balign 0x10 + JUMP_TO_HANDLER (dbtrap, ENTRY_SP) // 0x60 - Illegal op / DBTRAP insn + + + /* Hardware interrupt vectors. */ + .section .intv.mach, "ax" + .org 0x0 + +#if defined (CONFIG_V850E_HIGHRES_TIMER) && defined (IRQ_INTCMD) + + /* Interrupts before the highres timer interrupt. */ + .rept IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT) + .balign 0x10 + JUMP_TO_HANDLER (irq, ENTRY_SP) + .endr + + /* The highres timer interrupt. */ + .balign 0x10 + JUMP_TO_HANDLER (C_SYMBOL_NAME (highres_timer_slow_tick_irq), ENTRY_SP) + + /* Interrupts after the highres timer interrupt. */ + .rept NUM_CPU_IRQS - IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT) - 1 + .balign 0x10 + JUMP_TO_HANDLER (irq, ENTRY_SP) + .endr + +#else /* No highres timer */ + + .rept NUM_CPU_IRQS + .balign 0x10 + JUMP_TO_HANDLER (irq, ENTRY_SP) + .endr + +#endif /* Highres timer */ |