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Subject[PATCH 06/12] ACPI, x86: remove ACPI dependency on some IO-APIC routines
Date
From: Feng Tang <feng.tang@intel.com>

Both ACPI and SFI x86 systems will use these io_apic routines:

uniq_ioapic_id(u8 id);
io_apic_get_unique_id(int ioapic, int apic_id);
io_apic_get_version(int ioapic);
io_apic_get_redir_entries(int ioapic);

so move the 1st from acpi/boot.c to io_apic.c,
and remove the #ifdef ACPI around the other three.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
arch/x86/include/asm/io_apic.h | 3 +--
arch/x86/kernel/acpi/boot.c | 22 ----------------------
arch/x86/kernel/apic/io_apic.c | 28 +++++++++++++++++++++-------
3 files changed, 22 insertions(+), 31 deletions(-)
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index daf866e..1a097b9 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -150,11 +150,10 @@ extern int timer_through_8259;
#define io_apic_assign_pci_irqs \
(mp_irq_entries && !skip_ioapic_setup && io_apic_irqs)

-#ifdef CONFIG_ACPI
+extern u8 uniq_ioapic_id(u8 id);
extern int io_apic_get_unique_id(int ioapic, int apic_id);
extern int io_apic_get_version(int ioapic);
extern int io_apic_get_redir_entries(int ioapic);
-#endif /* CONFIG_ACPI */

struct io_apic_irq_attr;
extern int io_apic_set_pci_routing(struct device *dev, int irq,
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 6b8ca3a..a7f9e89 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -863,28 +863,6 @@ int mp_find_ioapic_pin(int ioapic, int gsi)
return gsi - mp_ioapic_routing[ioapic].gsi_base;
}

-static u8 __init uniq_ioapic_id(u8 id)
-{
-#ifdef CONFIG_X86_32
- if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
- !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
- return io_apic_get_unique_id(nr_ioapics, id);
- else
- return id;
-#else
- int i;
- DECLARE_BITMAP(used, 256);
- bitmap_zero(used, 256);
- for (i = 0; i < nr_ioapics; i++) {
- struct mpc_ioapic *ia = &mp_ioapics[i];
- __set_bit(ia->apicid, used);
- }
- if (!test_bit(id, used))
- return id;
- return find_first_zero_bit(used, 256);
-#endif
-}
-
static int bad_ioapic(unsigned long address)
{
if (nr_ioapics >= MAX_IO_APICS) {
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 4d0216f..5884e60 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3944,11 +3944,27 @@ int io_apic_set_pci_routing(struct device *dev, int irq,
return __io_apic_set_pci_routing(dev, irq, irq_attr);
}

-/* --------------------------------------------------------------------------
- ACPI-based IOAPIC Configuration
- -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI
+u8 __init uniq_ioapic_id(u8 id)
+{
+#ifdef CONFIG_X86_32
+ if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
+ !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
+ return io_apic_get_unique_id(nr_ioapics, id);
+ else
+ return id;
+#else
+ int i;
+ DECLARE_BITMAP(used, 256);
+ bitmap_zero(used, 256);
+ for (i = 0; i < nr_ioapics; i++) {
+ struct mpc_ioapic *ia = &mp_ioapics[i];
+ __set_bit(ia->apicid, used);
+ }
+ if (!test_bit(id, used))
+ return id;
+ return find_first_zero_bit(used, 256);
+#endif
+}

#ifdef CONFIG_X86_32
int __init io_apic_get_unique_id(int ioapic, int apic_id)
@@ -4057,8 +4073,6 @@ int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
return 0;
}

-#endif /* CONFIG_ACPI */
-
/*
* This function currently is only a helper for the i386 smp boot process where
* we need to reprogram the ioredtbls to cater for the cpus which have come online
--
1.6.0.6


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