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authorDavid S. Miller <davem@davemloft.net>2008-03-26 07:37:51 (GMT)
committerDavid S. Miller <davem@davemloft.net>2008-03-26 07:37:51 (GMT)
commitd91aa123b4b96e57680a39fb9dfd9722f8df3c7e (patch)
tree05bfc21a4c0b978ddf61ab0453274565036291e8 /arch/sparc64/kernel/entry.h
parent6c830fefcc2e9d20f0a6c6aff43c8d333da2ea46 (diff)
downloadlinux-fsl-qoriq-d91aa123b4b96e57680a39fb9dfd9722f8df3c7e.tar.xz
[SPARC64]: Fix sparse warnings in arch/sparc64/kernel/irq.c
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/entry.h')
-rw-r--r--arch/sparc64/kernel/entry.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/entry.h b/arch/sparc64/kernel/entry.h
index a5084d6..e66d94c 100644
--- a/arch/sparc64/kernel/entry.h
+++ b/arch/sparc64/kernel/entry.h
@@ -153,4 +153,31 @@ struct cheetah_err_info {
*/
extern struct cheetah_err_info *cheetah_error_log;
+/* UPA nodes send interrupt packet to UltraSparc with first data reg
+ * value low 5 (7 on Starfire) bits holding the IRQ identifier being
+ * delivered. We must translate this into a non-vector IRQ so we can
+ * set the softint on this cpu.
+ *
+ * To make processing these packets efficient and race free we use
+ * an array of irq buckets below. The interrupt vector handler in
+ * entry.S feeds incoming packets into per-cpu pil-indexed lists.
+ *
+ * If you make changes to ino_bucket, please update hand coded assembler
+ * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S
+ */
+struct ino_bucket {
+/*0x00*/unsigned long __irq_chain_pa;
+
+ /* Virtual interrupt number assigned to this INO. */
+/*0x08*/unsigned int __virt_irq;
+/*0x0c*/unsigned int __pad;
+};
+
+extern struct ino_bucket *ivector_table;
+extern unsigned long ivector_table_pa;
+
+extern void handler_irq(int irq, struct pt_regs *regs);
+extern void init_irqwork_curcpu(void);
+extern void __cpuinit sun4v_register_mondo_queues(int this_cpu);
+
#endif /* _ENTRY_H */