linux/arch/x86
Konrad Rzeszutek Wilk efa631c26d x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine.
In 'pci_swiotlb_detect' we used to do two different things:
 a). If user provided 'iommu=soft' or 'swiotlb=force' we
     would set swiotlb=1 and return 1 (and forcing pci-dma.c
     to call pci_swiotlb_init() immediately).
 b). If 4GB or more would be detected and if user did not specify
     iommu=off, we would set 'swiotlb=1' and return whatever 'a)'
     figured out.

We simplify this by splitting a) and b) in two different routines.

CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
LKML-Reference: <1282845485-8991-5-git-send-email-konrad.wilk@oracle.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2010-08-26 15:13:29 -07:00
..
boot x86, setup: move isdigit.h to ctype.h, header files on top. 2010-08-02 21:07:20 -07:00
configs defconfig reduction 2010-08-14 22:26:53 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2010-05-03 11:28:58 +08:00
ia32 Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
include/asm x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine. 2010-08-26 15:13:29 -07:00
kernel x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine. 2010-08-26 15:13:29 -07:00
kvm Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2010-08-22 11:27:36 -07:00
lguest Merge branch 'ht-delete-2.6.35' into release 2010-05-28 16:20:35 -04:00
lib Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-13 10:35:48 -07:00
math-emu x86, fpu: Unbreak FPU emulation 2010-05-10 13:37:16 -07:00
mm x86: don't send SIGBUS for kernel page faults 2010-08-13 09:49:20 -07:00
oprofile oprofile: add support for Intel processor model 30 2010-08-05 12:17:38 +02:00
pci x86/PCI: use for_each_pci_dev() 2010-07-30 09:47:33 -07:00
power update email address 2010-07-19 10:56:54 +02:00
tools x86: Remove trailing spaces in messages 2010-02-07 17:47:51 +01:00
vdso Merge branches 'x86-cleanups-for-linus', 'x86-vmware-for-linus', 'x86-mtrr-for-linus', 'x86-apic-for-linus', 'x86-fpu-for-linus' and 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 16:22:59 -07:00
video
xen Merge branch 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2010-08-12 09:09:41 -07:00
.gitignore add random binaries to .gitignore 2010-04-08 11:34:34 +02:00
Kbuild
Kconfig Replace Configure with Enable in description of MAXSMP 2010-08-21 12:38:58 -07:00
Kconfig.cpu Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-18 08:58:16 -07:00
Kconfig.debug Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-05-18 08:40:21 -07:00
Makefile x86: Use .cfi_sections for assembly code 2010-05-13 22:15:18 -07:00
Makefile_32.cpu Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-12-08 13:38:11 -08:00