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35c1b48d27
linux/drivers/iommu
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Chao Hao 35c1b48d27 iommu/mediatek: Add REG_MMU_WR_LEN_CTRL register definition 
Some platforms(ex: mt6779) need to improve performance by setting
REG_MMU_WR_LEN_CTRL register. And we can use WR_THROT_EN macro to control
whether we need to set the register. If the register uses default value,
iommu will send command to EMI without restriction, when the number of
commands become more and more, it will drop the EMI performance. So when
more than ten_commands(default value) don't be handled for EMI, iommu will
stop send command to EMI for keeping EMI's performace by enabling write
throttling mechanism(bit[5][21]=0) in MMU_WR_LEN_CTRL register.

Signed-off-by: Chao Hao <chao.hao@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20200703044127.27438-8-chao.hao@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-07-10 16:13:11 +02:00
..
amd IOMMU drivers directory structure cleanup: 2020-06-12 12:19:13 -07:00
intel iommu/vt-d: Fix misuse of iommu_domain_identity_map() 2020-06-23 10:08:32 +02:00
arm-smmu-impl.c iommu: arm-smmu-impl: Convert to a generic reset implementation 2020-05-07 14:21:42 +01:00
arm-smmu-qcom.c iommu/arm-smmu-qcom: Request direct mapping for modem device 2020-05-18 15:35:06 +01:00
arm-smmu-v3.c Merge branches 'arm/msm', 'arm/allwinner', 'arm/smmu', 'x86/vt-d', 'hyper-v', 'core' and 'x86/amd' into next 2020-06-02 10:32:04 +02:00
arm-smmu.c iommu/arm-smmu: Implement iommu_ops->def_domain_type call-back 2020-05-07 14:21:42 +01:00
arm-smmu.h iommu/arm-smmu: Implement iommu_ops->def_domain_type call-back 2020-05-07 14:21:42 +01:00
dma-iommu.c dma-pool: add additional coherent pools to map to gfp mask 2020-04-20 12:09:40 +02:00
exynos-iommu.c iommu/exynos: Convert to probe/release_device() call-backs 2020-05-05 14:36:14 +02:00
fsl_pamu_domain.c iommu/pamu: Convert to probe/release_device() call-backs 2020-05-05 14:36:13 +02:00
fsl_pamu_domain.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pamu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pamu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
hyperv-iommu.c iommu/hyper-v: Constify hyperv_ir_domain_ops 2020-05-27 14:38:20 +02:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
io-pgtable-arm.c iommu/io-pgtable-arm: Fix IOVA validation for 32-bit 2020-03-02 17:17:26 +01:00
io-pgtable.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
ioasid.c iommu/ioasid: Add custom allocators 2019-10-15 13:34:25 +02:00
iommu-debugfs.c
iommu-sysfs.c drivers/iommu: Export core IOMMU API symbols to permit modular drivers 2019-12-23 14:06:05 +01:00
iommu-traces.c
iommu.c iommu: Check for deferred attach in iommu_group_do_dma_attach() 2020-06-04 11:38:17 +02:00
iova.c iommu/iova: Unify format of the printed messages 2020-05-13 10:54:51 +02:00
ipmmu-vmsa.c iommu/renesas: Fix unused-function warning 2020-05-13 10:46:56 +02:00
irq_remapping.c
irq_remapping.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
Kconfig iommu/vt-d: Make Intel SVM code 64-bit only 2020-06-23 10:08:31 +02:00
Makefile iommu/vt-d: Move Intel IOMMU driver into subdirectory 2020-06-10 17:46:43 +02:00
msm_iommu_hw-8xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
msm_iommu.c Merge branches 'arm/msm', 'arm/allwinner', 'arm/smmu', 'x86/vt-d', 'hyper-v', 'core' and 'x86/amd' into next 2020-06-02 10:32:04 +02:00
msm_iommu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
mtk_iommu_v1.c iommu/mediatek-v1: Fix a build warning for a unused variable 'data' 2020-05-19 14:18:38 +02:00
mtk_iommu.c iommu/mediatek: Add REG_MMU_WR_LEN_CTRL register definition 2020-07-10 16:13:11 +02:00
mtk_iommu.h iommu/mediatek: Add REG_MMU_WR_LEN_CTRL register definition 2020-07-10 16:13:11 +02:00
of_iommu.c iommu/arm-smmu-v3: Parse PASID devicetree property of platform devices 2020-01-15 16:00:57 +00:00
omap-iommu-debug.c Merge branches 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/omap', 'generic-dma-ops' and 'core' into next 2019-07-04 17:26:48 +02:00
omap-iommu.c iommu/omap: Add registration for DT fwnode pointer 2020-05-18 15:39:45 +02:00
omap-iommu.h iommu/omap: add support for late attachment of iommu devices 2019-08-09 17:37:10 +02:00
omap-iopgtable.h iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architectures 2020-03-04 16:24:46 +01:00
qcom_iommu.c Linux 5.7-rc4 2020-05-13 12:01:33 +02:00
rockchip-iommu.c iommu/rockchip: Convert to probe/release_device() call-backs 2020-05-05 14:36:13 +02:00
s390-iommu.c s390 updates for the 5.8 merge window 2020-06-08 12:05:31 -07:00
sun50i-iommu.c iommu/sun50i: Constify sun50i_iommu_ops 2020-05-27 14:39:00 +02:00
tegra-gart.c iommu/tegra: Convert to probe/release_device() call-backs 2020-05-05 14:36:14 +02:00
tegra-smmu.c iommu/tegra: Convert to probe/release_device() call-backs 2020-05-05 14:36:14 +02:00
virtio-iommu.c Linux 5.7-rc7 2020-05-29 17:10:09 +02:00