x86 gart: rename symbols only used for the GART implementation

This patch renames the 4 symbols iommu_hole_init(), iommu_aperture,
iommu_aperture_allowed, iommu_aperture_disabled. All these symbols are only
used for the GART implementation of IOMMUs.

It adds and additional gart_ prefix to them.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 7 insertions, 6 deletions

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 70c854fdfb21..5b6992799c9d 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -25,9 +25,9 @@
 #include <asm/dma.h>
 #include <asm/k8.h>
 
-int iommu_aperture;
-int iommu_aperture_disabled __initdata = 0;
-int iommu_aperture_allowed __initdata = 0;
+int gart_iommu_aperture;
+int gart_iommu_aperture_disabled __initdata = 0;
+int gart_iommu_aperture_allowed __initdata = 0;
 
 int fallback_aper_order __initdata = 1; /* 64MB */
 int fallback_aper_force __initdata = 0; 
@@ -204,14 +204,15 @@ static __u32 __init search_agp_bridge(u32 *order, int *valid_agp)
         return 0;
 }
 
-void __init iommu_hole_init(void) 
+void __init gart_iommu_hole_init(void)
 { 
         int fix, num; 
         u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
         u64 aper_base, last_aper_base = 0;
         int valid_agp = 0;
 
-        if (iommu_aperture_disabled || !fix_aperture || !early_pci_allowed())
+        if (gart_iommu_aperture_disabled || !fix_aperture ||
+            !early_pci_allowed())
                 return;
 
         printk(KERN_INFO  "Checking aperture...\n");
@@ -222,7 +223,7 @@ void __init iommu_hole_init(void)
                         continue;
 
                 iommu_detected = 1;
-                iommu_aperture = 1; 
+                gart_iommu_aperture = 1;
 
                 aper_order = (read_pci_config(0, num, 3, 0x90) >> 1) & 7; 
                 aper_size = (32 * 1024 * 1024) << aper_order;