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-rw-r--r--arch/x86/kernel/amd_iommu_init.c8
-rw-r--r--arch/x86/kernel/aperture_64.c11
-rw-r--r--arch/x86/kernel/pci-calgary_64.c15
3 files changed, 20 insertions, 14 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 3cc63e2b8dd..0b9e2dc4fc9 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -1382,13 +1382,13 @@ static int __init early_amd_iommu_detect(struct acpi_table_header *table)
return 0;
}
-void __init amd_iommu_detect(void)
+int __init amd_iommu_detect(void)
{
if (no_iommu || (iommu_detected && !gart_iommu_aperture))
- return;
+ return -ENODEV;
if (amd_iommu_disabled)
- return;
+ return -ENODEV;
if (acpi_table_parse("IVRS", early_amd_iommu_detect) == 0) {
iommu_detected = 1;
@@ -1397,7 +1397,9 @@ void __init amd_iommu_detect(void)
/* Make sure ACS will be enabled */
pci_request_acs();
+ return 1;
}
+ return -ENODEV;
}
/****************************************************************************
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index a2e0caf26e1..afa0dab3302 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -371,7 +371,7 @@ void __init early_gart_iommu_check(void)
static int __initdata printed_gart_size_msg;
-void __init gart_iommu_hole_init(void)
+int __init gart_iommu_hole_init(void)
{
u32 agp_aper_base = 0, agp_aper_order = 0;
u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
@@ -381,7 +381,7 @@ void __init gart_iommu_hole_init(void)
if (gart_iommu_aperture_disabled || !fix_aperture ||
!early_pci_allowed())
- return;
+ return -ENODEV;
printk(KERN_INFO "Checking aperture...\n");
@@ -463,8 +463,9 @@ out:
unsigned long n = (32 * 1024 * 1024) << last_aper_order;
insert_aperture_resource((u32)last_aper_base, n);
+ return 1;
}
- return;
+ return 0;
}
if (!fallback_aper_force) {
@@ -500,7 +501,7 @@ out:
panic("Not enough memory for aperture");
}
} else {
- return;
+ return 0;
}
/* Fix up the north bridges */
@@ -524,4 +525,6 @@ out:
}
set_up_gart_resume(aper_order, aper_alloc);
+
+ return 1;
}
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 078d4ec1a9d..28c6b389fee 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1364,7 +1364,7 @@ static int __init calgary_iommu_init(void)
return 0;
}
-void __init detect_calgary(void)
+int __init detect_calgary(void)
{
int bus;
void *tbl;
@@ -1378,13 +1378,13 @@ void __init detect_calgary(void)
* another HW IOMMU already, bail out.
*/
if (no_iommu || iommu_detected)
- return;
+ return -ENODEV;
if (!use_calgary)
- return;
+ return -ENODEV;
if (!early_pci_allowed())
- return;
+ return -ENODEV;
printk(KERN_DEBUG "Calgary: detecting Calgary via BIOS EBDA area\n");
@@ -1410,13 +1410,13 @@ void __init detect_calgary(void)
if (!rio_table_hdr) {
printk(KERN_DEBUG "Calgary: Unable to locate Rio Grande table "
"in EBDA - bailing!\n");
- return;
+ return -ENODEV;
}
ret = build_detail_arrays();
if (ret) {
printk(KERN_DEBUG "Calgary: build_detail_arrays ret %d\n", ret);
- return;
+ return -ENOMEM;
}
specified_table_size = determine_tce_table_size((is_kdump_kernel() ?
@@ -1464,7 +1464,7 @@ void __init detect_calgary(void)
x86_init.iommu.iommu_init = calgary_iommu_init;
}
- return;
+ return calgary_found;
cleanup:
for (--bus; bus >= 0; --bus) {
@@ -1473,6 +1473,7 @@ cleanup:
if (info->tce_space)
free_tce_table(info->tce_space);
}
+ return -ENOMEM;
}
static int __init calgary_parse_options(char *p)