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x86 gart: rename symbols only used for the GART implementation

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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>
This commit is contained in:
Joerg Roedel 2007-10-24 12:49:50 +02:00 committed by Thomas Gleixner
parent 79da087441
commit 0440d4c00d
5 changed files with 20 additions and 19 deletions
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13
arch/x86/kernel/aperture_64.c
View File

@ -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;

4
arch/x86/kernel/early-quirks.c
View File

@ -25,11 +25,11 @@ static void __init via_bugs(void)
{
#ifdef CONFIG_GART_IOMMU
if ((end_pfn > MAX_DMA32_PFN || force_iommu) &&
!iommu_aperture_allowed) {
!gart_iommu_aperture_allowed) {
printk(KERN_INFO
"Looks like a VIA chipset. Disabling IOMMU."
" Override with iommu=allowed\n");
iommu_aperture_disabled = 1;
gart_iommu_aperture_disabled = 1;
}
#endif
}

2
arch/x86/kernel/pci-dma_64.c
View File

@ -299,7 +299,7 @@ void __init pci_iommu_alloc(void)
* fall-back/fail-over reasons
*/
#ifdef CONFIG_GART_IOMMU
iommu_hole_init();
gart_iommu_hole_init();
#endif
#ifdef CONFIG_CALGARY_IOMMU

8
arch/x86/kernel/pci-gart_64.c
View File

@ -627,12 +627,12 @@ void __init gart_iommu_init(void)
return;
/* Did we detect a different HW IOMMU? */
if (iommu_detected && !iommu_aperture)
if (iommu_detected && !gart_iommu_aperture)
return;
if (no_iommu ||
(!force_iommu && end_pfn <= MAX_DMA32_PFN) ||
!iommu_aperture ||
!gart_iommu_aperture ||
(no_agp && init_k8_gatt(&info) < 0)) {
if (end_pfn > MAX_DMA32_PFN) {
printk(KERN_ERR "WARNING more than 4GB of memory "
@ -733,9 +733,9 @@ void __init gart_parse_options(char *p)
fix_aperture = 0;
/* duplicated from pci-dma.c */
if (!strncmp(p,"force",5))
iommu_aperture_allowed = 1;
gart_iommu_aperture_allowed = 1;
if (!strncmp(p,"allowed",7))
iommu_aperture_allowed = 1;
gart_iommu_aperture_allowed = 1;
if (!strncmp(p, "memaper", 7)) {
fallback_aper_force = 1;
p += 7;

12
include/asm-x86/gart.h
View File

@ -9,16 +9,16 @@ extern int iommu_detected;
extern void gart_iommu_init(void);
extern void gart_iommu_shutdown(void);
extern void __init gart_parse_options(char *);
extern void iommu_hole_init(void);
extern void gart_iommu_hole_init(void);
extern int fallback_aper_order;
extern int fallback_aper_force;
extern int iommu_aperture;
extern int iommu_aperture_allowed;
extern int iommu_aperture_disabled;
extern int gart_iommu_aperture;
extern int gart_iommu_aperture_allowed;
extern int gart_iommu_aperture_disabled;
extern int fix_aperture;
#else
#define iommu_aperture 0
#define iommu_aperture_allowed 0
#define gart_iommu_aperture 0
#define gart_iommu_aperture_allowed 0
static inline void gart_iommu_shutdown(void)
{