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-rw-r--r--arch/powerpc/include/asm/irq.h18
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index a372f76836c2..0a5137676e1b 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -236,15 +236,27 @@ extern unsigned int irq_find_mapping(struct irq_host *host,
236extern unsigned int irq_create_direct_mapping(struct irq_host *host); 236extern unsigned int irq_create_direct_mapping(struct irq_host *host);
237 237
238/** 238/**
239 * irq_radix_revmap - Find a linux virq from a hw irq number. 239 * irq_radix_revmap_insert - Insert a hw irq to linux virq number mapping.
240 * @host: host owning this hardware interrupt
241 * @virq: linux irq number
242 * @hwirq: hardware irq number in that host space
243 *
244 * This is for use by irq controllers that use a radix tree reverse
245 * mapping for fast lookup.
246 */
247extern void irq_radix_revmap_insert(struct irq_host *host, unsigned int virq,
248 irq_hw_number_t hwirq);
249
250/**
251 * irq_radix_revmap_lookup - Find a linux virq from a hw irq number.
240 * @host: host owning this hardware interrupt 252 * @host: host owning this hardware interrupt
241 * @hwirq: hardware irq number in that host space 253 * @hwirq: hardware irq number in that host space
242 * 254 *
243 * This is a fast path, for use by irq controller code that uses radix tree 255 * This is a fast path, for use by irq controller code that uses radix tree
244 * revmaps 256 * revmaps
245 */ 257 */
246extern unsigned int irq_radix_revmap(struct irq_host *host, 258extern unsigned int irq_radix_revmap_lookup(struct irq_host *host,
247 irq_hw_number_t hwirq); 259 irq_hw_number_t hwirq);
248 260
249/** 261/**
250 * irq_linear_revmap - Find a linux virq from a hw irq number. 262 * irq_linear_revmap - Find a linux virq from a hw irq number.