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linux/arch/powerpc/kernel
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Benjamin Herrenschmidt cd15b04844 powerpc/powernv: Add iommu DMA bypass support for IODA2 
This patch adds the support for to create a direct iommu "bypass"
window on IODA2 bridges (such as Power8) allowing to bypass iommu
page translation completely for 64-bit DMA capable devices, thus
significantly improving DMA performances.

Additionally, this adds a hook to the struct iommu_table so that
the IOMMU API / VFIO can disable the bypass when external ownership
is requested, since in that case, the device will be used by an
environment such as userspace or a KVM guest which must not be
allowed to bypass translations.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 		2014-02-11 16:07:37 +11:00
..
vdso32 powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
vdso64 powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
.gitignore
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Makefile clk: mpc5xxx: switch to COMMON_CLK, retire PPC_CLOCK 2014-01-12 18:53:04 +01:00
align.c powerpc: Enable Little Endian Alignment Handler for Float Pair Instructions 2013-10-30 16:01:23 +11:00
asm-offsets.c Second batch of KVM updates. Some minor x86 fixes, 2014-01-31 08:37:32 -08:00
audit.c
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btext.c
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cacheinfo.c powerpc: Make sure "cache" directory is removed when offlining cpu 2014-01-29 17:02:26 +11:00
cacheinfo.h
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compat_audit.c
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cpu_setup_6xx.S
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cpu_setup_44x.S
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cpu_setup_a2.S
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cpu_setup_fsl_booke.S powerpc/85xx: add hardware automatically enter pw20 state 2014-01-07 19:40:28 -06:00
cpu_setup_pa6t.S
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cpu_setup_power.S powerpc/book3s: Add flush_tlb operation in cpu_spec. 2013-12-05 16:04:38 +11:00
cpu_setup_ppc970.S
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cputable.c powerpc/book3s: Flush SLB/TLBs if we get SLB/TLB machine check errors on power8. 2013-12-05 16:04:40 +11:00
crash.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
crash_dump.c powerpc: Fix endian issues in crash dump code 2013-12-13 15:48:39 +11:00
dbell.c
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dma-iommu.c powerpc/iommu: Update the generic code to use dynamic iommu page sizes 2013-12-30 14:17:19 +11:00
dma-swiotlb.c
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dma.c powerpc/powernv: Add iommu DMA bypass support for IODA2 2014-02-11 16:07:37 +11:00
eeh.c powerpc/eeh: Hotplug improvement 2014-01-15 13:58:29 +11:00
eeh_cache.c
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eeh_dev.c
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eeh_driver.c powerpc/eeh: Drop taken reference to driver on eeh_rmv_device 2014-02-11 11:24:46 +11:00
eeh_event.c powerpc/eeh: More accurate log 2013-11-21 10:33:36 +11:00
eeh_pe.c powerpc/eeh: Add restore_config operation 2014-01-15 13:46:46 +11:00
eeh_sysfs.c
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entry_32.S
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entry_64.S powerpc: Don't corrupt transactional state when using FP/VMX in kernel 2014-01-15 13:59:11 +11:00
epapr_hcalls.S
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epapr_paravirt.c powerpc: add explicit OF includes 2013-10-09 20:04:11 -05:00
exceptions-64e.S powerpc: Replaced tlbilx with tlbwe in the initialization code 2014-01-10 17:34:04 -06:00
exceptions-64s.S powerpc: Fix "attempt to move .org backwards" error 2013-12-30 14:16:30 +11:00
fadump.c
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firmware.c
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fpu.S powerpc: Don't corrupt transactional state when using FP/VMX in kernel 2014-01-15 13:59:11 +11:00
fsl_booke_entry_mapping.S powerpc: enable the relocatable support for the fsl booke 32bit kernel 2014-01-09 17:52:16 -06:00
ftrace.c powerpc: Make ftrace endian-safe. 2013-10-11 16:53:26 +11:00
head_8xx.S powerpc/8xx: Fixing issue with CONFIG_PIN_TLB 2013-10-28 21:11:21 -05:00
head_32.S
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head_40x.S
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head_44x.S
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head_64.S powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
head_booke.h
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head_fsl_booke.S powerpc/fsl_booke: smp support for booting a relocatable kernel above 64M 2014-01-09 17:52:18 -06:00
hw_breakpoint.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
ibmebus.c PPC: ibmebus: convert bus code to use bus_groups 2013-09-26 15:49:42 -07:00
idle.c
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idle_6xx.S
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idle_book3e.S
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idle_e500.S
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idle_power4.S
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idle_power7.S powerpc/book3s: Return from interrupt if coming from evil context. 2013-12-05 16:04:36 +11:00
io-workarounds.c
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io.c
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iomap.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
iommu.c powerpc/powernv: Add iommu DMA bypass support for IODA2 2014-02-11 16:07:37 +11:00
irq.c powerpc/ppc32: Fix the bug in the init of non-base exception stack for UP 2014-02-11 11:24:52 +11:00
isa-bridge.c
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jump_label.c
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kgdb.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
kprobes.c doc: typo on word accounting in kprobes.c in mutliple architectures 2013-10-14 15:46:39 +02:00
kvm.c kvm/powerpc: rename kvm_hypercall() to epapr_hypercall() 2014-01-09 10:14:56 +01:00
kvm_emul.S
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l2cr_6xx.S
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legacy_serial.c powerpc/legacy_serial: Fix incorrect placement of __initdata tag 2013-10-11 16:48:59 +11:00
machine_kexec.c powerpc: Fix endian issues in kexec and crash dump code 2014-02-11 11:24:52 +11:00
machine_kexec_32.c
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machine_kexec_64.c powerpc: Fix endian issues in kexec and crash dump code 2014-02-11 11:24:52 +11:00
mce.c Move precessing of MCE queued event out from syscall exit path. 2014-01-15 13:58:59 +11:00
mce_power.c powerpc: Fix endian issues in power7/8 machine check handler 2013-12-30 14:51:09 +11:00
misc.S
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misc_32.S powerpc: purge all the prefetched instructions for the coherent icache flush 2013-12-02 14:13:47 +11:00
misc_64.S Merge branch 'merge' into next 2013-12-30 15:19:31 +11:00
module.c powerpc: Move local setup.h declarations to arch includes 2013-10-30 16:00:31 +11:00
module_32.c powerpc: Move local setup.h declarations to arch includes 2013-10-30 16:00:31 +11:00
module_64.c powerpc: Move local setup.h declarations to arch includes 2013-10-30 16:00:31 +11:00
msi.c
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nvram_64.c arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow 2013-11-25 11:50:57 +11:00
of_platform.c
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paca.c powerpc/e6500: TLB miss handler with hardware tablewalk support 2014-01-09 17:52:19 -06:00
pci-common.c PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev 2013-12-21 10:06:10 -07:00
pci-hotplug.c
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pci_32.c
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pci_64.c
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pci_dn.c
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pci_of_scan.c PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev 2013-12-21 10:06:10 -07:00
pmc.c
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ppc32.h
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ppc_ksyms.c Merge branch 'for-kvm' into next 2013-10-11 18:23:53 +11:00
ppc_save_regs.S
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proc_powerpc.c
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process.c powerpc: Fix hw breakpoints on !HAVE_HW_BREAKPOINT configurations 2014-01-29 16:58:47 +11:00
prom.c powerpc: introduce early_get_first_memblock_info 2014-01-09 17:52:17 -06:00
prom_init.c powerpc: Check return value of instance-to-package OF call 2014-01-13 09:49:17 +11:00
prom_init_check.sh
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prom_parse.c
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ptrace.c powerpc: PTRACE_PEEKUSR always returns FPR0 2013-12-13 15:48:33 +11:00
ptrace32.c powerpc: move debug registers in a structure 2013-10-18 18:44:49 -05:00
reloc_32.S
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reloc_64.S powerpc/relocate fix relocate processing in LE mode 2014-02-11 11:24:48 +11:00
rtas-proc.c
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rtas-rtc.c
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rtas.c
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rtas_flash.c
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rtas_pci.c powerpc/kernel: Fix endian issue in rtas_pci 2013-10-11 16:50:22 +11:00
rtasd.c
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setup-common.c powerpc: Fix endian issue in setup-common.c 2013-12-13 15:48:34 +11:00
setup_32.c powerpc/ppc32: Fix the bug in the init of non-base exception stack for UP 2014-02-11 11:24:52 +11:00
setup_64.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-01-27 21:11:26 -08:00
signal.c powerpc: Don't corrupt transactional state when using FP/VMX in kernel 2014-01-15 13:59:11 +11:00
signal.h
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signal_32.c powerpc: Fix 32-bit frames for signals delivered when transactional 2014-01-29 16:58:49 +11:00
signal_64.c powerpc: Don't corrupt transactional state when using FP/VMX in kernel 2014-01-15 13:59:11 +11:00
smp-tbsync.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
smp.c Merge branch 'merge' into next 2013-12-30 15:19:31 +11:00
stacktrace.c
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suspend.c
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swsusp.c
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swsusp_32.S
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swsusp_64.c
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swsusp_asm64.S powerpc: Only save/restore SDR1 if in hypervisor mode 2013-10-31 12:37:29 +11:00
swsusp_booke.S powerpc/fsl-booke: Use SPRN_SPRGn rather than mfsprg/mtsprg 2014-01-07 19:06:03 -06:00
sys_ppc32.c
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syscalls.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
sysfs.c powerpc/pseries/cpuidle: smt-snooze-delay cleanup. 2014-01-29 17:02:24 +11:00
systbl.S
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systbl_chk.c
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systbl_chk.sh
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tau_6xx.c
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time.c powerpc: Fix races with irq_work 2014-01-15 13:59:03 +11:00
tm.S powerpc: Use 32 bit loads and stores when operating on condition register values 2013-10-30 16:02:14 +11:00
traps.c powerpc: Fix transactional FP/VMX/VSX unavailable handlers 2014-01-15 13:59:14 +11:00
udbg.c
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udbg_16550.c
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uprobes.c uprobes/powerpc: Kill arch_uprobe->ainsn 2013-11-20 16:31:01 +01:00
vdso.c powerpc: Move local setup.h declarations to arch includes 2013-10-30 16:00:31 +11:00
vecemu.c powerpc: Put FP/VSX and VR state into structures 2013-10-11 17:26:49 +11:00
vector.S powerpc: Don't corrupt transactional state when using FP/VMX in kernel 2014-01-15 13:59:11 +11:00
vio.c powerpc/iommu: Update the generic code to use dynamic iommu page sizes 2013-12-30 14:17:19 +11:00
vmlinux.lds.S
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