Cosmetics in ioapic.c (trivial, no functional changes).
authorUwe Hermann <uwe@hermann-uwe.de>
Thu, 14 Oct 2010 23:40:10 +0000 (23:40 +0000)
committerUwe Hermann <uwe@hermann-uwe.de>
Thu, 14 Oct 2010 23:40:10 +0000 (23:40 +0000)
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5952 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/arch/i386/lib/ioapic.c

index d6616f5529274ea15e61b1358331109a68de3fe0..e39fe8fd0ad552001cb9b5aa525feef81ab4a721 100644 (file)
@@ -34,7 +34,6 @@ static void io_apic_write(u32 ioapic_base, u32 reg, u32 value)
        write32(ioapic_base + 0x10, value);
 }
 
-
 void clear_ioapic(u32 ioapic_base)
 {
        u32 low, high;
@@ -42,8 +41,8 @@ void clear_ioapic(u32 ioapic_base)
 
        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, 1) >> 16) & 0xff;
+       /* Read the available number of interrupts. */
+       ioapic_interrupts = (io_apic_read(ioapic_base, 0x01) >> 16) & 0xff;
        if (!ioapic_interrupts || ioapic_interrupts == 0xff)
                ioapic_interrupts = 24;
        printk(BIOS_DEBUG, "IOAPIC: %d interrupts\n", ioapic_interrupts);
@@ -55,11 +54,12 @@ void clear_ioapic(u32 ioapic_base)
                io_apic_write(ioapic_base, i * 2 + 0x10, low);
                io_apic_write(ioapic_base, i * 2 + 0x11, high);
 
-               printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n", i, high, low);
+               printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n",
+                      i, high, low);
        }
 
        if (io_apic_read(ioapic_base, 0x10) == 0xffffffff) {
-               printk(BIOS_WARNING, "IO APIC not responding.\n");
+               printk(BIOS_WARNING, "IOAPIC not responding.\n");
                return;
        }
 }
@@ -70,25 +70,25 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
        u32 low, high;
        u32 i, ioapic_interrupts;
 
-       printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n", ioapic_base);
-       printk(BIOS_DEBUG, "IOAPIC: Bootstrap Processor Local APIC = %02x\n",
-                       bsp_lapicid);
+       printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n",
+              ioapic_base);
+       printk(BIOS_DEBUG, "IOAPIC: Bootstrap Processor Local APIC = 0x%02x\n",
+              bsp_lapicid);
 
        if (ioapic_id) {
                printk(BIOS_DEBUG, "IOAPIC: ID = 0x%02x\n", ioapic_id);
-               /* Set IOAPIC ID if it has been specified */
+               /* Set IOAPIC ID if it has been specified. */
                io_apic_write(ioapic_base, 0x00,
                        (io_apic_read(ioapic_base, 0x00) & 0xfff0ffff) |
-                               (ioapic_id << 24));
+                       (ioapic_id << 24));
        }
 
-       /* Read the available number of interrupts */
-       ioapic_interrupts = (io_apic_read(ioapic_base, 1) >> 16) & 0xff;
+       /* Read the available number of interrupts. */
+       ioapic_interrupts = (io_apic_read(ioapic_base, 0x01) >> 16) & 0xff;
        if (!ioapic_interrupts || ioapic_interrupts == 0xff)
                ioapic_interrupts = 24;
        printk(BIOS_DEBUG, "IOAPIC: %d interrupts\n", ioapic_interrupts);
 
-
 // XXX this decision should probably be made elsewhere, and
 // it's the C3, not the EPIA this depends on.
 #if defined(CONFIG_EPIA_VT8237R_INIT) && CONFIG_EPIA_VT8237R_INIT
@@ -98,18 +98,20 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
 #endif
 
 #ifdef IOAPIC_INTERRUPTS_ON_FSB
-       /* For the Pentium 4 and above APICs deliver their interrupts
+       /*
+        * For the Pentium 4 and above APICs deliver their interrupts
         * on the front side bus, enable that.
         */
        printk(BIOS_DEBUG, "IOAPIC: Enabling interrupts on FSB\n");
-       io_apic_write(ioapic_base, 0x03, io_apic_read(ioapic_base, 0x03) | (1 << 0));
+       io_apic_write(ioapic_base, 0x03,
+                     io_apic_read(ioapic_base, 0x03) | (1 << 0));
 #endif
 #ifdef IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS
        printk(BIOS_DEBUG, "IOAPIC: Enabling interrupts on APIC serial bus\n");
        io_apic_write(ioapic_base, 0x03, 0);
 #endif
 
-       /* Enable Virtual Wire Mode */
+       /* Enable Virtual Wire Mode. */
        low = ENABLED | TRIGGER_EDGE | POLARITY_HIGH | PHYSICAL_DEST | ExtINT;
        high = bsp_lapicid << (56 - 32);
 
@@ -117,11 +119,12 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
        io_apic_write(ioapic_base, 0x11, high);
 
        if (io_apic_read(ioapic_base, 0x10) == 0xffffffff) {
-               printk(BIOS_WARNING, "IO APIC not responding.\n");
+               printk(BIOS_WARNING, "IOAPIC not responding.\n");
                return;
        }
 
-       printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n", 0, high, low);
+       printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n",
+              0, high, low);
 
        low = DISABLED;
        high = NONE;
@@ -130,6 +133,7 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
                io_apic_write(ioapic_base, i * 2 + 0x10, low);
                io_apic_write(ioapic_base, i * 2 + 0x11, high);
 
-               printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n", i, high, low);
+               printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n",
+                      i, high, low);
        }
 }