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authorOlof Johansson <olof@lixom.net>2007-01-29 00:33:18 -0500
committerPaul Mackerras <paulus@samba.org>2007-02-06 22:03:19 -0500
commit7df2457db83bc922fcc8b462526b77f1ffe8c84b (patch)
tree7029d9e27b858e435c2fc4ce9a6d83a2b028e290 /include/asm-powerpc/mpic.h
parent6529c13dfe413e437ad1ed0e97783dcf69137114 (diff)
[POWERPC] MPIC: support more than 256 sources
Allow more than the default 256 MPIC sources. Allocates a new flag (MPIC_LARGE_VECTORS) to be used by platform code when instantiating the mpic. I picked 11 bits worth right now since it would cover the number of sources on any hardware I have seen. It can always be increased later if needed. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/mpic.h')
-rw-r--r--include/asm-powerpc/mpic.h24
1 files changed, 9 insertions, 15 deletions
diff --git a/include/asm-powerpc/mpic.h b/include/asm-powerpc/mpic.h
index b71e7b32a555..cb204a71e912 100644
--- a/include/asm-powerpc/mpic.h
+++ b/include/asm-powerpc/mpic.h
@@ -103,21 +103,6 @@
103#define MPIC_MAX_ISU 32 103#define MPIC_MAX_ISU 32
104 104
105/* 105/*
106 * Special vector numbers (internal use only)
107 */
108#define MPIC_VEC_SPURRIOUS 255
109#define MPIC_VEC_IPI_3 254
110#define MPIC_VEC_IPI_2 253
111#define MPIC_VEC_IPI_1 252
112#define MPIC_VEC_IPI_0 251
113
114/* unused */
115#define MPIC_VEC_TIMER_3 250
116#define MPIC_VEC_TIMER_2 249
117#define MPIC_VEC_TIMER_1 248
118#define MPIC_VEC_TIMER_0 247
119
120/*
121 * Tsi108 implementation of MPIC has many differences from the original one 106 * Tsi108 implementation of MPIC has many differences from the original one
122 */ 107 */
123 108
@@ -276,6 +261,13 @@ struct mpic
276 unsigned char *senses; 261 unsigned char *senses;
277 unsigned int senses_count; 262 unsigned int senses_count;
278 263
264 /* vector numbers used for internal sources (ipi/timers) */
265 unsigned int ipi_vecs[4];
266 unsigned int timer_vecs[4];
267
268 /* Spurious vector to program into unused sources */
269 unsigned int spurious_vec;
270
279#ifdef CONFIG_MPIC_BROKEN_U3 271#ifdef CONFIG_MPIC_BROKEN_U3
280 /* The fixup table */ 272 /* The fixup table */
281 struct mpic_irq_fixup *fixups; 273 struct mpic_irq_fixup *fixups;
@@ -332,6 +324,8 @@ struct mpic
332#define MPIC_NO_PTHROU_DIS 0x00000040 324#define MPIC_NO_PTHROU_DIS 0x00000040
333/* DCR based MPIC */ 325/* DCR based MPIC */
334#define MPIC_USES_DCR 0x00000080 326#define MPIC_USES_DCR 0x00000080
327/* MPIC has 11-bit vector fields (or larger) */
328#define MPIC_LARGE_VECTORS 0x00000100
335 329
336/* MPIC HW modification ID */ 330/* MPIC HW modification ID */
337#define MPIC_REGSET_MASK 0xf0000000 331#define MPIC_REGSET_MASK 0xf0000000