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Arnd Bergmann a8ad568dd8 dma-ops: Remove flush_write_buffers() in dma-mapping-common.h 
This moves flush_write_buffers() in
asm-generic/dma-mapping-common.h to
arch/x86/kernel/pci-nommu.c.

The purpose of this patch is that, we can avoid defining NULL
flush_write_buffers() on IA64 and SPARC.

dma-mapping-common.h is used by X86 and IA64 (and SPARC soon)
but only X86 with CONFIG_X86_OOSTORE or CONFIG_X86_PPRO_FENCE
actually uses flush_write_buffers(). CONFIG_X86_OOSTORE or
CONFIG_X86_PPRO_FENCE is usable with only kernel/pci-nommu.c
(that is, not usable with other X86 IOMMU implementations such
as SWIOTLB, VT-d, etc) so we can safely move
flush_write_buffers() in asm-generic/dma-mapping-common.h to
arch/x86/kernel/pci-nommu.c.

The further discussion is:

  http://lkml.org/lkml/2009/6/28/104

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: davem@davemloft.net
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
LKML-Reference: <1249872797-1314-2-git-send-email-fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-10 09:34:57 +02:00
..
acpi Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release 2009-06-24 01:19:50 -04:00
apic Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-07-17 10:51:55 -07:00
cpu Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-07-27 12:18:09 -07:00
.gitignore
alternative.c x86: expand irq-off region in text_poke() 2009-03-10 16:24:23 +01:00
amd_iommu.c x86: Mark device_nb as static and fix NULL noise 2009-07-01 16:52:53 +02:00
amd_iommu_init.c amd-iommu: set evt_buf_size correctly 2009-07-02 18:32:05 +02:00
aperture_64.c
apm_32.c PM core: rename suspend and resume functions 2009-06-12 21:32:31 +02:00
asm-offsets.c
asm-offsets_32.c lguest: optimize by coding restore_flags and irq_enable in assembler. 2009-06-12 22:27:03 +09:30
asm-offsets_64.c x86, boot: make kernel_alignment adjustable; new bzImage fields 2009-05-11 17:44:39 -07:00
audit_64.c
bios_uv.c x86, UV: system table in bios accessed after unmap 2009-04-03 19:25:57 +02:00
bootflag.c
check.c x86: fix 64k corruption-check 2009-03-15 07:03:15 +01:00
cpuid.c Driver Core: x86: add nodename for cpuid and msr drivers. 2009-06-15 21:30:25 -07:00
crash.c x86: disable IOMMUs on kernel crash 2009-06-15 15:20:40 +02:00
crash_dump_32.c
crash_dump_64.c
doublefault_32.c
ds.c x86, ds: support Core i7 2009-04-07 13:36:36 +02:00
ds_selftest.c x86, ds: fix buffer alignment in debug store selftest 2009-04-24 10:18:51 +02:00
ds_selftest.h x86, bts: cleanups 2009-03-13 11:57:22 +01:00
dumpstack.c x86: Add sysctl to allow panic on IOCK NMI error 2009-06-25 22:06:11 +02:00
dumpstack.h x86: avoid multiple declaration of kstack_depth_to_print 2009-04-14 11:45:33 +02:00
dumpstack_32.c perf_counter: Ignore the nmi call frames in the x86-64 backtraces 2009-07-01 22:37:23 +02:00
dumpstack_64.c perf_counter: Ignore the nmi call frames in the x86-64 backtraces 2009-07-01 22:37:23 +02:00
e820.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
early-quirks.c x86 early quirks: eliminate unused function 2009-04-08 14:16:32 +02:00
early_printk.c x86: properly __init-annotate recent early_printk additions 2009-03-13 02:37:18 +01:00
efi.c x86: correct the conversion of EFI memory types 2009-06-16 17:47:32 -07:00
efi_32.c
efi_64.c Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
efi_stub_32.S Merge branch 'x86/asm' into x86/mm 2009-02-25 08:27:46 +01:00
efi_stub_64.S x86: efi_stub_32,64 - add missing ENDPROCs 2009-02-24 18:08:40 +01:00
entry_32.S Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:56:46 -07:00
entry_64.S function-graph: add stack frame test 2009-06-18 18:40:18 -04:00
ftrace.c function-graph: add stack frame test 2009-06-18 18:40:18 -04:00
geode_32.c
head.c
head32.c x86-32: use brk segment for allocating initial kernel pagetable 2009-03-14 17:23:47 -07:00
head64.c x86: add brk allocation for very, very early allocations 2009-03-14 15:37:14 -07:00
head_32.S x86: de-assembler-ize asm/desc.h 2009-06-17 21:35:10 -07:00
head_64.S x86: de-assembler-ize asm/desc.h 2009-06-17 21:35:10 -07:00
hpet.c x86: hpet: Mark per cpu interrupts IRQF_TIMER to prevent resume failure 2009-06-14 18:24:29 +02:00
i386_ksyms_32.c
i387.c x86, math-emu: fix init_fpu for task != current 2009-03-04 20:33:16 +01:00
i8237.c i8327: fix outb() parameter order 2009-02-10 13:13:23 +01:00
i8253.c time: move PIT_TICK_RATE to linux/timex.h 2009-06-16 19:47:27 -07:00
i8259.c x86: refactor x86_quirks support 2009-02-23 00:08:11 +01:00
init_task.c mm: consolidate init_mm definition 2009-06-16 19:47:28 -07:00
io_delay.c x86: io_delay.c cleanup 2009-03-21 16:57:04 +05:30
ioport.c x86-32: use non-lazy io bitmap context switching 2009-03-02 12:07:48 +01:00
irq.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
irq_32.c Merge branch 'tj-percpu' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu 2009-02-24 21:52:45 +01:00
irq_64.c x86: unify do_IRQ() 2009-02-09 12:16:05 +01:00
irqinit.c x86, mce: Rename incorrect macro name "CONFIG_X86_THRESHOLD" 2009-07-21 21:43:22 -07:00
k8.c
kdebugfs.c x86: kdebugfs.c cleanup 2009-03-21 16:55:45 +05:30
kgdb.c Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 15:49:10 -07:00
kprobes.c Merge branch 'tracing/core-v2' into tracing-for-linus 2009-04-02 00:49:02 +02:00
kvm.c x86, kvm: Fix section mismatches in kvm.c 2009-07-03 14:34:22 +02:00
kvmclock.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
ldt.c
machine_kexec_32.c x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP 2009-05-07 22:01:05 -07:00
machine_kexec_64.c x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP 2009-05-07 22:01:05 -07:00
Makefile gcov: exclude code operating in userspace from profiling 2009-07-06 13:57:03 -07:00
mca_32.c x86: refactor x86_quirks support 2009-02-23 00:08:11 +01:00
mfgpt_32.c x86: geode: Mark mfgpt irq IRQF_TIMER to prevent resume failure 2009-07-24 08:42:52 +02:00
microcode_amd.c x86, microcode: Simplify vfree() use 2009-06-07 16:35:11 +02:00
microcode_core.c Driver Core: misc: add nodename support for misc devices. 2009-06-15 21:30:25 -07:00
microcode_intel.c x86: microcode: use smp_call_function_single instead of set_cpus_allowed, cleanup of synchronization logic 2009-05-12 10:36:44 +02:00
mmconf-fam10h_64.c x86: move various CPU initialization objects into .cpuinit.rodata 2009-03-12 13:13:07 +01:00
module.c module: cleanup FIXME comments about trimming exception table entries. 2009-06-12 21:47:05 +09:30
mpparse.c x86, irq: don't call mp_config_acpi_gsi() if update_mptable is not enabled 2009-05-18 09:33:29 +02:00
msr.c Driver Core: x86: add nodename for cpuid and msr drivers. 2009-06-15 21:30:25 -07:00
olpc.c x86, olpc: fix model detection without OFW 2009-02-14 23:05:25 +01:00
paravirt-spinlocks.c
paravirt.c Merge branch 'x86-xen-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 16:16:27 -07:00
paravirt_patch_32.c x86/pvops: add a paravirt_ident functions to allow special patching 2009-01-30 14:51:44 -08:00
paravirt_patch_64.c x86/pvops: add a paravirt_ident functions to allow special patching 2009-01-30 14:51:44 -08:00
pci-calgary_64.c x86: calgary: remove IOMMU_DEBUG 2009-04-14 13:03:36 +02:00
pci-dma.c x86: replace is_buffer_dma_capable() with dma_capable 2009-07-28 14:19:19 +09:00
pci-gart_64.c x86: replace is_buffer_dma_capable() with dma_capable 2009-07-28 14:19:19 +09:00
pci-nommu.c dma-ops: Remove flush_write_buffers() in dma-mapping-common.h 2009-08-10 09:34:57 +02:00
pci-swiotlb.c x86: remove unused swiotlb_phys_to_bus() and swiotlb_bus_to_phys() 2009-07-28 14:19:20 +09:00
pcspeaker.c
pmtimer_64.c
probe_roms_32.c
process.c kmemcheck: add mm functions 2009-06-15 12:40:03 +02:00
process_32.c Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 19:53:40 -07:00
process_64.c Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 19:53:40 -07:00
ptrace.c x86, bts, mm: clean up buffer allocation 2009-04-24 10:18:52 +02:00
pvclock.c x86: Fix warning in pvclock.c 2009-07-14 16:25:05 +02:00
quirks.c Merge branch 'linus' into x86/cpu 2009-06-07 12:22:15 +02:00
reboot.c x86: Add reboot fixup for SBC-fitPC2 2009-07-20 18:38:14 -07:00
reboot_fixups_32.c
relocate_kernel_32.S x86, kexec: fix kexec x86 coding style 2009-03-10 18:13:25 -07:00
relocate_kernel_64.S x86, kexec: x86_64: add kexec jump support for x86_64 2009-03-10 18:13:25 -07:00
rtc.c x86: rtc.c cleanup 2009-03-21 16:56:37 +05:30
scx200_32.c
setup.c x86: Add quirk for Intel DG45ID board to avoid low memory corruption 2009-07-18 13:38:29 +02:00
setup_percpu.c x86: ensure percpu lpage doesn't consume too much vmalloc space 2009-06-22 11:56:24 +09:00
signal.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
smp.c Merge branch 'linus' into x86/mce3 2009-06-11 23:31:52 +02:00
smpboot.c x86: make zap_low_mapping could be used early 2009-06-12 13:50:24 +03:00
stacktrace.c x86: add save_stack_trace_bp() for tracing from a specific stack frame 2009-06-12 23:01:05 +02:00
step.c
sys_i386_32.c
sys_x86_64.c
syscall_64.c
syscall_table_32.S Merge branch 'core/signal' into perfcounters/core 2009-04-30 21:16:49 +02:00
tce_64.c
test_nx.c
test_rodata.c
time_32.c x86: refactor x86_quirks support 2009-02-23 00:08:11 +01:00
time_64.c cpumask: remove references to struct irqaction's mask field. 2009-03-30 22:05:14 +10:30
tlb_uv.c x86: Fix uv bau sending buffer initialization 2009-06-24 17:33:58 +02:00
tls.c
tls.h
topology.c x86: topology.c cleanup 2009-03-21 16:55:24 +05:30
trampoline.c
trampoline_32.S x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
trampoline_64.S x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
traps.c x86: Add sysctl to allow panic on IOCK NMI error 2009-06-25 22:06:11 +02:00
tsc.c Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:57:40 -07:00
tsc_sync.c x86: clean up arch/x86/kernel/tsc_sync.c a bit 2009-05-07 09:32:10 +02:00
uv_irq.c x86, apic: remove genapic.h 2009-02-17 17:52:44 +01:00
uv_sysfs.c x86: prevent /sys/firmware/sgi_uv from being created on non-uv systems 2009-04-08 14:58:10 +02:00
uv_time.c uv_time: add parameter to uv_read_rtc() 2009-04-22 17:41:25 +02:00
verify_cpu_64.S
visws_quirks.c x86: convert obsolete irq_desc_t typedef to struct irq_desc 2009-03-11 09:49:01 +01:00
vm86_32.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-10 16:15:14 -07:00
vmi_32.c Merge commit 'origin/master' into for-linus/xen/master 2009-04-07 13:34:16 -07:00
vmiclock_32.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
vmlinux.lds.S x86: Include all of .data.* sections in _edata on 64-bit 2009-07-18 13:59:20 +02:00
vsmp_64.c Revert "x86: don't compile vsmp_64 for 32bit" 2009-03-25 21:34:28 +01:00
vsyscall_64.c x86: move rdtsc_barrier() into the TSC vread method 2009-05-28 14:15:54 +02:00
x8664_ksyms_64.c
xsave.c x86-64: fix FPU corruption with signals and preemption 2009-04-20 14:33:00 -07:00