Patch set updated for coreboot: 8962180 ioapic: Factor out counting code to `ioapic_interrupt_count`

[Patrick Georgi]

Patrick Georgi ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2185

-gerrit

commit 896218058fcccce5e74c5867f2c1660df190c207
Author: Patrick Georgi 
Date:   Wed Jan 23 13:45:23 2013 +0100

ioapic: Factor out counting code to `ioapic_interrupt_count`

No need to keep duplicate variants of counting ioapic interrupts.

Change-Id: I512860297309c46e05cc5379bf61479878817b1e
    Signed-off-by: Patrick Georgi 
---
 src/arch/x86/lib/ioapic.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/src/arch/x86/lib/ioapic.c b/src/arch/x86/lib/ioapic.c
index e05d80c..fc5e307 100644
--- a/src/arch/x86/lib/ioapic.c
+++ b/src/arch/x86/lib/ioapic.c
@@ -34,15 +34,10 @@ static void io_apic_write(u32 ioapic_base, u32 reg, u32 value)
    write32(ioapic_base + 0x10, value);
 }

-void clear_ioapic(u32 ioapic_base)
+static int ioapic_interrupt_count(int ioapic_base)
 {
-	u32 low, high;
-	u32 i, ioapic_interrupts;
-
-	printk(BIOS_DEBUG, "IOAPIC: Clearing IOAPIC at 0x%08x\n", ioapic_base);
-
    /* Read the available number of interrupts. */
-	ioapic_interrupts = (io_apic_read(ioapic_base, 0x01) >> 16) & 0xff;
+	int ioapic_interrupts = (io_apic_read(ioapic_base, 0x01) >> 16) & 0xff;
    if (ioapic_interrupts == 0xff)
    	ioapic_interrupts = 23;
    ioapic_interrupts += 1; /* Bits 23-16 specify the maximum redirection
@@ -50,6 +45,18 @@ void clear_ioapic(u32 ioapic_base)
    			   minus 1. */
    printk(BIOS_DEBUG, "IOAPIC: %d interrupts\n", ioapic_interrupts);

+	return ioapic_interrupts;
+}
+
+void clear_ioapic(u32 ioapic_base)
+{
+	u32 low, high;
+	u32 i, ioapic_interrupts;
+
+	printk(BIOS_DEBUG, "IOAPIC: Clearing IOAPIC at 0x%08x\n", ioapic_base);
+
+	ioapic_interrupts = ioapic_interrupt_count(ioapic_base);
+
    low = DISABLED;
    high = NONE;

@@ -86,14 +93,7 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
    		(ioapic_id << 24));
    }

-	/* Read the available number of interrupts. */
-	ioapic_interrupts = (io_apic_read(ioapic_base, 0x01) >> 16) & 0xff;
-	if (ioapic_interrupts == 0xff)
-		ioapic_interrupts = 23;
-	ioapic_interrupts += 1; /* Bits 23-16 specify the maximum redirection
-				   entry, which is the number of interrupts
-				   minus 1. */
-	printk(BIOS_DEBUG, "IOAPIC: %d interrupts\n", ioapic_interrupts);
+	ioapic_interrupts = ioapic_interrupt_count(ioapic_base);

#if CONFIG_IOAPIC_INTERRUPTS_ON_FSB
    /*