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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.S87
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 000000000000..671e4c6150dd
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+++ b/arch/v850/kernel/intv.S
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1/*
2 * arch/v850/kernel/intv.S -- Interrupt vectors
3 *
4 * Copyright (C) 2001,02,03 NEC Electronics Corporation
5 * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
6 *
7 * This file is subject to the terms and conditions of the GNU General
8 * Public License. See the file COPYING in the main directory of this
9 * archive for more details.
10 *
11 * Written by Miles Bader <miles@gnu.org>
12 */
13
14#include <asm/clinkage.h>
15#include <asm/irq.h>
16#include <asm/machdep.h>
17#include <asm/entry.h>
18
19#ifdef CONFIG_V850E_HIGHRES_TIMER
20#include <asm/highres_timer.h>
21#endif
22
23/* Jump to an interrupt/trap handler. These handlers (defined in entry.S)
24 expect the stack-pointer to be saved in ENTRY_SP, so we use sp to do an
25 indirect jump (which avoids problems when the handler is more than a signed
26 22-bit offset away). */
27#define JUMP_TO_HANDLER(name, sp_save_loc) \
28 st.w sp, sp_save_loc; \
29 mov hilo(name), sp; \
30 jmp [sp]
31
32
33 /* Reset vector. */
34 .section .intv.reset, "ax"
35 .org 0x0
36 mov hilo(C_SYMBOL_NAME(start)), r1;
37 jmp [r1]
38
39
40 /* Generic interrupt vectors. */
41 .section .intv.common, "ax"
42 .balign 0x10
43 JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x10 - NMI0
44 .balign 0x10
45 JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x20 - NMI1
46 .balign 0x10
47 JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x30 - NMI2
48
49 .balign 0x10
50 JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x40 - TRAP0n
51 .balign 0x10
52 JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x50 - TRAP1n
53
54 .balign 0x10
55 JUMP_TO_HANDLER (dbtrap, ENTRY_SP) // 0x60 - Illegal op / DBTRAP insn
56
57
58 /* Hardware interrupt vectors. */
59 .section .intv.mach, "ax"
60 .org 0x0
61
62#if defined (CONFIG_V850E_HIGHRES_TIMER) && defined (IRQ_INTCMD)
63
64 /* Interrupts before the highres timer interrupt. */
65 .rept IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT)
66 .balign 0x10
67 JUMP_TO_HANDLER (irq, ENTRY_SP)
68 .endr
69
70 /* The highres timer interrupt. */
71 .balign 0x10
72 JUMP_TO_HANDLER (C_SYMBOL_NAME (highres_timer_slow_tick_irq), ENTRY_SP)
73
74 /* Interrupts after the highres timer interrupt. */
75 .rept NUM_CPU_IRQS - IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT) - 1
76 .balign 0x10
77 JUMP_TO_HANDLER (irq, ENTRY_SP)
78 .endr
79
80#else /* No highres timer */
81
82 .rept NUM_CPU_IRQS
83 .balign 0x10
84 JUMP_TO_HANDLER (irq, ENTRY_SP)
85 .endr
86
87#endif /* Highres timer */