From ba1fc93457e3506aaab88b67b5404a8915ea8233 Mon Sep 17 00:00:00 2001
From: "Steven J. Hill" <Steven.Hill@cavium.com>
Date: Tue, 29 Aug 2017 10:40:35 -0500
Subject: [PATCH] MIPS: Octeon: Allow access to CIU3 IRQ domains.
Add accessor function octeon_irq_get_block_domain() for cores
with a CIU3.
Signed-off-by: Steven J. Hill <steven.hill@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-watchdog@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17210/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/cavium-octeon/octeon-irq.c | 9 +++++++++
arch/mips/include/asm/octeon/octeon.h | 2 ++
2 files changed, 11 insertions(+)
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index c1eb1ff7c8001..5b3a3f6a9ad31 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -2963,3 +2963,12 @@ void octeon_fixup_irqs(void)
}
#endif /* CONFIG_HOTPLUG_CPU */
+
+struct irq_domain *octeon_irq_get_block_domain(int node, uint8_t block)
+{
+ struct octeon_ciu3_info *ciu3_info;
+
+ ciu3_info = octeon_ciu3_info_per_node[node & CVMX_NODE_MASK];
+ return ciu3_info->domain[block];
+}
+EXPORT_SYMBOL(octeon_irq_get_block_domain);
diff --git a/arch/mips/include/asm/octeon/octeon.h b/arch/mips/include/asm/octeon/octeon.h
index 07c0516ef4d53..c99c4b6a79f44 100644
--- a/arch/mips/include/asm/octeon/octeon.h
+++ b/arch/mips/include/asm/octeon/octeon.h
@@ -362,4 +362,6 @@ extern void octeon_fixup_irqs(void);
extern struct semaphore octeon_bootbus_sem;
+struct irq_domain *octeon_irq_get_block_domain(int node, uint8_t block);
+
#endif /* __ASM_OCTEON_OCTEON_H */
--
2.30.2