From 592434139bf943cbc6c80f1467221904a3c917ec Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Fri, 6 Dec 2019 21:42:15 -0700
Subject: x86: Allow interrupt to happen once

At present the interrupt table is included in all phases of U-Boot. Allow
it to be omitted, e.g. in TPL, to reduce size.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---
 arch/x86/lib/pirq_routing.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'arch/x86/lib/pirq_routing.c')

diff --git a/arch/x86/lib/pirq_routing.c b/arch/x86/lib/pirq_routing.c
index e5f0e614241..17bd2fcb9b4 100644
--- a/arch/x86/lib/pirq_routing.c
+++ b/arch/x86/lib/pirq_routing.c
@@ -10,6 +10,8 @@
 #include <asm/pci.h>
 #include <asm/pirq_routing.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 static u8 pirq_get_next_free_irq(struct udevice *dev, u8 *pirq, u16 bitmap,
 				 bool irq_already_routed[])
 {
@@ -131,3 +133,11 @@ u32 copy_pirq_routing_table(u32 addr, struct irq_routing_table *rt)
 
 	return addr + rt->size;
 }
+
+ulong write_pirq_routing_table(ulong addr)
+{
+	if (!gd->arch.pirq_routing_table)
+		return addr;
+
+	return copy_pirq_routing_table(addr, gd->arch.pirq_routing_table);
+}
-- 
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