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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-19 16:15:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-19 16:15:54 -0700 |
| commit | 7c1cfacca2083db519317f49f31e143d97fd554a (patch) | |
| tree | 95bb307ea7a53393b3391806cd9f2ab87cd974f0 /arch/x86/kernel | |
| parent | 7c3895383fea48dab2374b04a936de4717a85a81 (diff) | |
| parent | 707d4eefbdb31f8e588277157056b0ce637d6c68 (diff) | |
Merge tag 'pci-v3.14-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI resource management fix from Bjorn Helgaas:
"This is a fix for an AGP regression exposed by e501b3d87f00 ("agp:
Support 64-bit APBASE"), which we merged in v3.14-rc1.
We've warned about the conflict between the GART and PCI resources and
cleared out the PCI resource for a long time, but after e501b3d87f00,
we still *use* that cleared-out PCI resource. I think the GART
resource is incorrect, so this patch removes it"
* tag 'pci-v3.14-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "[PATCH] Insert GART region into resource map"
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/aperture_64.c | 20 |
1 files changed, 1 insertions, 19 deletions
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index fd972a3e4cb..9fa8aa051f5 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -18,7 +18,6 @@ #include <linux/pci_ids.h> #include <linux/pci.h> #include <linux/bitops.h> -#include <linux/ioport.h> #include <linux/suspend.h> #include <asm/e820.h> #include <asm/io.h> @@ -54,18 +53,6 @@ int fallback_aper_force __initdata; int fix_aperture __initdata = 1; -static struct resource gart_resource = { - .name = "GART", - .flags = IORESOURCE_MEM, -}; - -static void __init insert_aperture_resource(u32 aper_base, u32 aper_size) -{ - gart_resource.start = aper_base; - gart_resource.end = aper_base + aper_size - 1; - insert_resource(&iomem_resource, &gart_resource); -} - /* This code runs before the PCI subsystem is initialized, so just access the northbridge directly. */ @@ -96,7 +83,6 @@ static u32 __init allocate_aperture(void) memblock_reserve(addr, aper_size); printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n", aper_size >> 10, addr); - insert_aperture_resource((u32)addr, aper_size); register_nosave_region(addr >> PAGE_SHIFT, (addr+aper_size) >> PAGE_SHIFT); @@ -444,12 +430,8 @@ int __init gart_iommu_hole_init(void) out: if (!fix && !fallback_aper_force) { - if (last_aper_base) { - unsigned long n = (32 * 1024 * 1024) << last_aper_order; - - insert_aperture_resource((u32)last_aper_base, n); + if (last_aper_base) return 1; - } return 0; } |