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authorArnd Bergmann <arndb@de.ibm.com>2005-10-31 20:08:41 -0500
committerPaul Mackerras <paulus@samba.org>2005-11-01 05:03:07 -0500
commit811d4176f4366ca13a00c1fbb57587d210d38f19 (patch)
tree3377bf105f51fbcdc23d9d63d07d096465fcc723 /arch/powerpc/platforms/cell/interrupt.h
parentedf03c1ee84e5095e8f4a4b8ad6e0784118cb176 (diff)
[PATCH] powerpc: move arch/ppc64/kernel/bpa* to arch/powerpc/platforms/cell
This patch simply moves files over to arch/powerpc without making any changes to them. Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/interrupt.h')
-rw-r--r--arch/powerpc/platforms/cell/interrupt.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/interrupt.h b/arch/powerpc/platforms/cell/interrupt.h
new file mode 100644
index 00000000000..37d58e6fd0c
--- /dev/null
+++ b/arch/powerpc/platforms/cell/interrupt.h
@@ -0,0 +1,62 @@
1#ifndef ASM_CELL_PIC_H
2#define ASM_CELL_PIC_H
3#ifdef __KERNEL__
4/*
5 * Mapping of IIC pending bits into per-node
6 * interrupt numbers.
7 *
8 * IRQ FF CC SS PP FF CC SS PP Description
9 *
10 * 00-3f 80 02 +0 00 - 80 02 +0 3f South Bridge
11 * 00-3f 80 02 +b 00 - 80 02 +b 3f South Bridge
12 * 41-4a 80 00 +1 ** - 80 00 +a ** SPU Class 0
13 * 51-5a 80 01 +1 ** - 80 01 +a ** SPU Class 1
14 * 61-6a 80 02 +1 ** - 80 02 +a ** SPU Class 2
15 * 70-7f C0 ** ** 00 - C0 ** ** 0f IPI
16 *
17 * F flags
18 * C class
19 * S source
20 * P Priority
21 * + node number
22 * * don't care
23 *
24 * A node consists of a Cell Broadband Engine and an optional
25 * south bridge device providing a maximum of 64 IRQs.
26 * The south bridge may be connected to either IOIF0
27 * or IOIF1.
28 * Each SPE is represented as three IRQ lines, one per
29 * interrupt class.
30 * 16 IRQ numbers are reserved for inter processor
31 * interruptions, although these are only used in the
32 * range of the first node.
33 *
34 * This scheme needs 128 IRQ numbers per BIF node ID,
35 * which means that with the total of 512 lines
36 * available, we can have a maximum of four nodes.
37 */
38
39enum {
40 IIC_EXT_OFFSET = 0x00, /* Start of south bridge IRQs */
41 IIC_NUM_EXT = 0x40, /* Number of south bridge IRQs */
42 IIC_SPE_OFFSET = 0x40, /* Start of SPE interrupts */
43 IIC_CLASS_STRIDE = 0x10, /* SPE IRQs per class */
44 IIC_IPI_OFFSET = 0x70, /* Start of IPI IRQs */
45 IIC_NUM_IPIS = 0x10, /* IRQs reserved for IPI */
46 IIC_NODE_STRIDE = 0x80, /* Total IRQs per node */
47};
48
49extern void iic_init_IRQ(void);
50extern int iic_get_irq(struct pt_regs *regs);
51extern void iic_cause_IPI(int cpu, int mesg);
52extern void iic_request_IPIs(void);
53extern void iic_setup_cpu(void);
54extern void iic_local_enable(void);
55extern void iic_local_disable(void);
56
57
58extern void spider_init_IRQ(void);
59extern int spider_get_irq(unsigned long int_pending);
60
61#endif
62#endif /* ASM_CELL_PIC_H */