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authorOlof Johansson <olof@lixom.net>2007-01-28 23:33:18 -0600
committerPaul Mackerras <paulus@samba.org>2007-02-07 14:03:19 +1100
commit7df2457db83bc922fcc8b462526b77f1ffe8c84b (patch)
tree7029d9e27b858e435c2fc4ce9a6d83a2b028e290 /include
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')
-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 @@
#define MPIC_MAX_ISU 32
/*
- * Special vector numbers (internal use only)
- */
-#define MPIC_VEC_SPURRIOUS 255
-#define MPIC_VEC_IPI_3 254
-#define MPIC_VEC_IPI_2 253
-#define MPIC_VEC_IPI_1 252
-#define MPIC_VEC_IPI_0 251
-
-/* unused */
-#define MPIC_VEC_TIMER_3 250
-#define MPIC_VEC_TIMER_2 249
-#define MPIC_VEC_TIMER_1 248
-#define MPIC_VEC_TIMER_0 247
-
-/*
* Tsi108 implementation of MPIC has many differences from the original one
*/
@@ -276,6 +261,13 @@ struct mpic
unsigned char *senses;
unsigned int senses_count;
+ /* vector numbers used for internal sources (ipi/timers) */
+ unsigned int ipi_vecs[4];
+ unsigned int timer_vecs[4];
+
+ /* Spurious vector to program into unused sources */
+ unsigned int spurious_vec;
+
#ifdef CONFIG_MPIC_BROKEN_U3
/* The fixup table */
struct mpic_irq_fixup *fixups;
@@ -332,6 +324,8 @@ struct mpic
#define MPIC_NO_PTHROU_DIS 0x00000040
/* DCR based MPIC */
#define MPIC_USES_DCR 0x00000080
+/* MPIC has 11-bit vector fields (or larger) */
+#define MPIC_LARGE_VECTORS 0x00000100
/* MPIC HW modification ID */
#define MPIC_REGSET_MASK 0xf0000000