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>

diff --git a/arch/x86/cpu/Makefile b/arch/x86/cpu/Makefile
index 6296b55..b6a010e 100644 (file)
--- a/arch/x86/cpu/Makefile
+++ b/arch/x86/cpu/Makefile
@@ -53,7 +53,7 @@ obj-$(CONFIG_INTEL_QUARK) += quark/
 obj-$(CONFIG_INTEL_QUEENSBAY) += queensbay/
 obj-$(CONFIG_INTEL_TANGIER) += tangier/
 obj-$(CONFIG_APIC) += lapic.o ioapic.o
-obj-y += irq.o
+obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += irq.o
 ifndef CONFIG_$(SPL_)X86_64
 obj-$(CONFIG_SMP) += mp_init.o
 endif

diff --git a/arch/x86/cpu/irq.c b/arch/x86/cpu/irq.c
index cb18349..ed9938f 100644 (file)
--- a/arch/x86/cpu/irq.c
+++ b/arch/x86/cpu/irq.c
@@ -350,14 +350,6 @@ int irq_router_probe(struct udevice *dev)
        return 0;
 }
 
-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);
-}
-
 static const struct udevice_id irq_router_ids[] = {
        { .compatible = "intel,irq-router" },
        { }

diff --git a/arch/x86/lib/pirq_routing.c b/arch/x86/lib/pirq_routing.c
index e5f0e61..17bd2fc 100644 (file)
--- 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);
+}