linux-stable/drivers/iommu
Nipun Gupta 6eb18d4a2b iommu/arm-smmu: Set SMTNMB_TLBEN in ACR to enable caching of bypass entries
The SMTNMB_TLBEN in the Auxiliary Configuration Register (ACR) provides an
option to enable the updation of TLB in case of bypass transactions due to
no stream match in the stream match table. This reduces the latencies of
the subsequent transactions with the same stream-id which bypasses the SMMU.
This provides a significant performance benefit for certain networking
workloads.

With this change substantial performance improvement of ~9% is observed with
DPDK l3fwd application (http://dpdk.org/doc/guides/sample_app_ug/l3_forward.html)
on NXP's LS2088a platform.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-11-29 15:57:41 +00:00
..
amd_iommu.c IOMMU Updates for Linux v4.9 2016-10-11 12:52:41 -07:00
amd_iommu_init.c iommu/amd: Use standard bitmap operation to set bitmap 2016-09-19 15:49:01 +02:00
amd_iommu_proto.h Merge branch 'x86/amd-avic' into x86/amd 2016-09-05 12:43:16 +02:00
amd_iommu_types.h KVM updates for v4.9-rc1 2016-10-06 10:49:01 -07:00
amd_iommu_v2.c IOMMU Updates for Linux v4.8 2016-08-01 07:25:10 -04:00
arm-smmu-v3.c iommu/arm-smmu: Constify iommu_gather_ops structures 2016-11-29 15:57:40 +00:00
arm-smmu.c iommu/arm-smmu: Set SMTNMB_TLBEN in ACR to enable caching of bypass entries 2016-11-29 15:57:41 +00:00
dma-iommu.c iommu/dma: Avoid PCI host bridge windows 2016-09-16 09:34:22 +01:00
dmar.c IOMMU Updates for Linux v4.8 2016-08-01 07:25:10 -04:00
exynos-iommu.c iommu/exynos: Fix error handling for of_platform_device_create 2016-08-09 17:27:48 +02:00
fsl_pamu.c powerpc/fsl: Move fsl_guts.h out of arch/powerpc 2015-10-21 18:05:50 -05:00
fsl_pamu.h iommu/fsl: Various cleanups 2015-02-03 18:47:18 +01:00
fsl_pamu_domain.c iommu/fsl: Convert to device_group call-back 2015-10-22 00:00:49 +02:00
fsl_pamu_domain.h iommu/fsl: Make use of domain_alloc and domain_free 2015-03-31 15:32:14 +02:00
intel-iommu.c iommu/vt-d: Fix dead-locks in disable_dmar_iommu() path 2016-11-08 15:08:26 +01:00
intel-svm.c mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
intel_irq_remapping.c SVM fixes for Linux 4.5 2016-02-16 08:04:06 -08:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm: Use for_each_set_bit to simplify the code 2016-11-29 15:57:40 +00:00
io-pgtable-arm.c iommu/io-pgtable-arm: Use const and __initconst for iommu_gather_ops structures 2016-11-29 15:57:41 +00:00
io-pgtable.c iommu/io-pgtable: Fix a brace coding style issue. 2016-04-05 15:34:29 +02:00
io-pgtable.h iommu/io-pgtable: Add MTK 4GB mode in Short-descriptor 2016-04-05 15:39:37 +02:00
iommu-sysfs.c iommu: Fix compile error in iommu-sysfs.c 2014-07-07 12:01:21 +02:00
iommu-traces.c
iommu.c iommu: Introduce iommu_fwspec 2016-09-16 09:34:15 +01:00
iova.c iommu/iova: Disable preemption around use of this_cpu_ptr() 2016-06-27 13:07:45 +02:00
ipmmu-vmsa.c iommu/ipmmu-vmsa: Fix wrong error handle of ipmmu_add_device 2016-09-05 12:53:58 +02:00
irq_remapping.c x86/cpufeature: Replace cpu_has_apic with boot_cpu_has() usage 2016-04-13 11:37:41 +02:00
irq_remapping.h iommu, x86: Setup Posted-Interrupts capability for Intel iommu 2015-06-12 11:33:52 +02:00
Kconfig iommu/arm-smmu: Support non-PCI devices with SMMUv3 2016-09-16 09:34:17 +01:00
Makefile Merge branches 'x86/amd', 'x86/vt-d', 'arm/exynos', 'arm/mediatek', 'arm/msm', 'arm/rockchip', 'arm/smmu' and 'core' into next 2016-07-26 16:02:37 +02:00
msm_iommu.c iommu/msm: use generic ARMV7S short descriptor pagetable ops 2016-06-21 13:57:13 +02:00
msm_iommu.h iommu/msm: Add DT adaptation 2016-06-21 13:56:00 +02:00
msm_iommu_hw-8xxx.h
mtk_iommu.c iommu/mediatek: move the common struct into header file 2016-06-21 11:36:19 +02:00
mtk_iommu.h iommu/mediatek: Mark static functions in headers inline 2016-08-09 15:46:46 +02:00
mtk_iommu_v1.c iommu/mediatek: Make mtk_iommu_pm_ops static 2016-06-21 11:54:06 +02:00
of_iommu.c iommu: Introduce iommu_fwspec 2016-09-16 09:34:15 +01:00
omap-iommu-debug.c iommu/omap: Align code with open parenthesis 2016-04-05 17:53:20 +02:00
omap-iommu.c iommu/omap: Use WARN_ON for page table alignment check 2016-04-05 17:53:20 +02:00
omap-iommu.h iommu/omap: Add support for configuring dsp iommus on DRA7xx 2015-10-14 14:35:47 +02:00
omap-iopgtable.h iommu/omap: Use BIT(x) macros in omap-iopgtable.h 2015-08-03 16:04:42 +02:00
rockchip-iommu.c iommu/rockchip: Prepare to support generic DMA mapping 2016-06-27 14:50:08 +02:00
s390-iommu.c iommu/s390: simplify registration of I/O address translation parameters 2016-09-22 13:42:28 +02:00
tegra-gart.c Merge branches 'iommu/fixes', 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/tegra' and 'core' into next 2015-04-02 13:33:19 +02:00
tegra-smmu.c iommu/tegra-smmu: Parameterize number of TLB lines 2015-08-13 17:05:28 +02:00