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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-19 19:15:54 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-19 19:15:54 -0400 |
commit | 7c1cfacca2083db519317f49f31e143d97fd554a (patch) | |
tree | 95bb307ea7a53393b3391806cd9f2ab87cd974f0 /arch | |
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')
-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 fd972a3e4cbb..9fa8aa051f54 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c | |||
@@ -18,7 +18,6 @@ | |||
18 | #include <linux/pci_ids.h> | 18 | #include <linux/pci_ids.h> |
19 | #include <linux/pci.h> | 19 | #include <linux/pci.h> |
20 | #include <linux/bitops.h> | 20 | #include <linux/bitops.h> |
21 | #include <linux/ioport.h> | ||
22 | #include <linux/suspend.h> | 21 | #include <linux/suspend.h> |
23 | #include <asm/e820.h> | 22 | #include <asm/e820.h> |
24 | #include <asm/io.h> | 23 | #include <asm/io.h> |
@@ -54,18 +53,6 @@ int fallback_aper_force __initdata; | |||
54 | 53 | ||
55 | int fix_aperture __initdata = 1; | 54 | int fix_aperture __initdata = 1; |
56 | 55 | ||
57 | static struct resource gart_resource = { | ||
58 | .name = "GART", | ||
59 | .flags = IORESOURCE_MEM, | ||
60 | }; | ||
61 | |||
62 | static void __init insert_aperture_resource(u32 aper_base, u32 aper_size) | ||
63 | { | ||
64 | gart_resource.start = aper_base; | ||
65 | gart_resource.end = aper_base + aper_size - 1; | ||
66 | insert_resource(&iomem_resource, &gart_resource); | ||
67 | } | ||
68 | |||
69 | /* This code runs before the PCI subsystem is initialized, so just | 56 | /* This code runs before the PCI subsystem is initialized, so just |
70 | access the northbridge directly. */ | 57 | access the northbridge directly. */ |
71 | 58 | ||
@@ -96,7 +83,6 @@ static u32 __init allocate_aperture(void) | |||
96 | memblock_reserve(addr, aper_size); | 83 | memblock_reserve(addr, aper_size); |
97 | printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n", | 84 | printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n", |
98 | aper_size >> 10, addr); | 85 | aper_size >> 10, addr); |
99 | insert_aperture_resource((u32)addr, aper_size); | ||
100 | register_nosave_region(addr >> PAGE_SHIFT, | 86 | register_nosave_region(addr >> PAGE_SHIFT, |
101 | (addr+aper_size) >> PAGE_SHIFT); | 87 | (addr+aper_size) >> PAGE_SHIFT); |
102 | 88 | ||
@@ -444,12 +430,8 @@ int __init gart_iommu_hole_init(void) | |||
444 | 430 | ||
445 | out: | 431 | out: |
446 | if (!fix && !fallback_aper_force) { | 432 | if (!fix && !fallback_aper_force) { |
447 | if (last_aper_base) { | 433 | if (last_aper_base) |
448 | unsigned long n = (32 * 1024 * 1024) << last_aper_order; | ||
449 | |||
450 | insert_aperture_resource((u32)last_aper_base, n); | ||
451 | return 1; | 434 | return 1; |
452 | } | ||
453 | return 0; | 435 | return 0; |
454 | } | 436 | } |
455 | 437 | ||