linux/drivers/char/agp
FUJITA Tomonori 61684ceaad x86/agp: Fix agp_amd64_init regression
This fixes the regression introduced by commit
42590a7501 ("x86/agp: Fix
agp_amd64_init and agp_amd64_cleanup").

The above commit changes agp_amd64_init() not to do anything if
gart_iommu_aperture is not zero.

If GART iommu calls agp_amd64_init(), we need to skip
agp_amd64_init() when it's called later via module_init.

The problem is that gart_iommu_init() calls agp_amd64_init()
with not zero gart_iommu_aperture so agp_amd64_init() is never
initialized.

When gart_iommu_init() calls agp_amd64_init(), agp should be
always initialized.

Reported-by: Marin Mitov <mitov@issp.bas.bg>
Reported-by: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Tested-by: Marin Mitov <mitov@issp.bas.bg>
Tested-by: Kevin Winchester <kjwinchester@gmail.com>
Cc: davej@redhat.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <20100125141006O.fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-31 07:52:26 +01:00
..
agp.h const: mark struct vm_struct_operations 2009-09-27 11:39:25 -07:00
ali-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
alpha-agp.c const: mark struct vm_struct_operations 2009-09-27 11:39:25 -07:00
amd-k7-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
amd64-agp.c x86/agp: Fix agp_amd64_init regression 2010-01-31 07:52:26 +01:00
ati-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
backend.c agp: correct missing cleanup on error in agp_add_bridge 2010-01-11 15:09:01 +10:00
compat_ioctl.c agp: more boolean conversions. 2008-06-19 10:42:17 +10:00
compat_ioctl.h agp: add chipset flushing support to AGP interface 2008-02-05 14:33:32 +10:00
efficeon-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
frontend.c agp: Remove the BKL from agp_open 2009-10-14 17:36:54 +02:00
generic.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
hp-agp.c agp/hp: fail gracefully if we don't find an IOC 2010-01-11 15:09:02 +10:00
i460-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
intel-agp.c drm/i915: enable 36bit physical address for hardware status page 2010-01-15 14:50:14 -08:00
isoch.c agp: use dev_printk when possible 2008-08-12 10:13:38 +10:00
Kconfig agp/amd64: Remove GART dependency on AGP_AMD64 2009-10-29 17:29:40 +01:00
Makefile [AGPGART] Fix modular agpgart ia64 allmodconfig 2007-02-20 14:18:01 -05:00
nvidia-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
parisc-agp.c agp: parisc-agp.c - use correct page_mask function 2009-10-03 01:27:56 -04:00
sgi-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
sis-agp.c agp: enable optimized agp_alloc_pages methods 2008-08-22 06:07:33 +02:00
sworks-agp.c agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
uninorth-agp.c agp/uninorth: Unify U3 and pre-U3 insert_memory and remove_memory hooks. 2009-12-09 17:09:30 +11:00
via-agp.c Update email addresses. 2008-10-20 12:50:03 -07:00