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linux-stable/drivers/iommu
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Tomasz Figa f2e3a5f557 iommu/rockchip: Control clocks needed to access the IOMMU 
Current code relies on master driver enabling necessary clocks before
IOMMU is accessed, however there are cases when the IOMMU should be
accessed while the master is not running yet, for example allocating
V4L2 videobuf2 buffers, which is done by the VB2 framework using DMA
mapping API and doesn't engage the master driver at all.

This patch fixes the problem by letting clocks needed for IOMMU
operation to be listed in Device Tree and making the driver enable them
for the time of accessing the hardware.

Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2018-03-29 12:22:26 +02:00
..
amd_iommu.c IOMMU Updates for Linux v4.16 2018-02-08 12:03:54 -08:00
amd_iommu_init.c iommu/amd: Deprecate pci_get_bus_and_slot() 2018-01-11 17:31:05 -06:00
amd_iommu_proto.h IOMMU Updates for Linux v4.14 2017-09-09 15:03:24 -07:00
amd_iommu_types.h iommu/amd: Set the device table entry PPR bit for IOMMU V2 devices 2017-12-20 09:47:08 -07:00
amd_iommu_v2.c pci-v4.16-changes 2018-02-06 09:59:40 -08:00
arm-smmu-regs.h
arm-smmu-v3.c Merge branches 'arm/renesas', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'core' into next 2018-01-17 15:29:14 +01:00
arm-smmu.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
dma-iommu.c iommu/iova: Make rcache flush optional on IOVA allocation failure 2017-10-12 14:18:02 +02:00
dmar.c iommu/vt-d: Clear Page Request Overflow fault bit 2017-11-03 10:51:33 -06:00
exynos-iommu.c Merge branches 'arm/renesas', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'core' into next 2018-01-17 15:29:14 +01:00
fsl_pamu.c Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
fsl_pamu.h
fsl_pamu_domain.c Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
fsl_pamu_domain.h
intel-iommu.c IOMMU Updates for Linux v4.16 2018-02-08 12:03:54 -08:00
intel-svm.c treewide/trivial: Remove ';;$' typo noise 2018-02-22 10:59:33 +01:00
intel_irq_remapping.c genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
io-pgtable-arm-v7s.c Merge branches 'iommu/fixes', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'core' into next 2017-10-13 17:32:24 +02:00
io-pgtable-arm.c iommu/io-pgtable-arm: Convert to IOMMU API TLB sync 2017-10-02 15:45:25 +02:00
io-pgtable.c
io-pgtable.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iommu-sysfs.c
iommu-traces.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iommu.c iommu: Check the result of iommu_group_get() for NULL 2017-12-20 09:48:36 -07:00
iova.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
ipmmu-vmsa.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
irq_remapping.c
irq_remapping.h
Kconfig iommu/qcom: Depend on HAS_DMA to fix compile error 2017-09-19 15:30:41 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msm_iommu.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
msm_iommu.h
msm_iommu_hw-8xxx.h
mtk_iommu.c Merge branches 'iommu/fixes', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'core' into next 2017-10-13 17:32:24 +02:00
mtk_iommu.h
mtk_iommu_v1.c iommu/mediatek: Fix driver name 2017-11-06 10:40:53 -07:00
of_iommu.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
omap-iommu-debug.c iommu/omap: Fix debugfs_create_*() usage 2018-01-17 14:23:33 +01:00
omap-iommu.c iommu/omap: Add support to program multiple iommus 2017-09-19 11:32:05 +02:00
omap-iommu.h iommu/omap: Add support to program multiple iommus 2017-09-19 11:32:05 +02:00
omap-iopgtable.h
qcom_iommu.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
rockchip-iommu.c iommu/rockchip: Control clocks needed to access the IOMMU 2018-03-29 12:22:26 +02:00
s390-iommu.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tegra-gart.c
tegra-smmu.c iommu/tegra-smmu: Fix return value check in tegra_smmu_group_get() 2017-12-20 18:32:08 +01:00