AuxXxilium/linux_dsm_epyc7002
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bad614b242
linux_dsm_epyc7002/drivers/iommu
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Gary R Hook bad614b242 iommu: Enable debugfs exposure of IOMMU driver internals 
Provide base enablement for using debugfs to expose internal data of an
IOMMU driver. When called, create the /sys/kernel/debug/iommu directory.

Emit a strong warning at boot time to indicate that this feature is
enabled.

This function is called from iommu_init, and creates the initial DebugFS
directory. Drivers may then call iommu_debugfs_new_driver_dir() to
instantiate a device-specific directory to expose internal data.
It will return a pointer to the new dentry structure created in
/sys/kernel/debug/iommu, or NULL in the event of a failure.

Since the IOMMU driver can not be removed from the running system, there
is no need for an "off" function.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2018-07-06 14:06:30 +02:00
..
amd_iommu_init.c iommu/amd: Use raw locks on atomic context paths 2018-02-13 14:18:06 +01:00
amd_iommu_proto.h IOMMU Updates for Linux v4.14 2017-09-09 15:03:24 -07:00
amd_iommu_types.h iommu/amd: Update logging information for new event type 2018-05-03 16:33:18 +02:00
amd_iommu_v2.c pci-v4.16-changes 2018-02-06 09:59:40 -08:00
amd_iommu.c Revert "iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}()" 2018-06-11 12:22:12 -07:00
arm-smmu-regs.h iommu/arm-smmu: Split out register defines 2017-08-15 17:34:48 +02:00
arm-smmu-v3.c iommu/arm-smmu-v3: Support 52-bit virtual address 2018-03-27 14:12:06 +01:00
arm-smmu.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
dma-iommu.c iommu/dma: Move PCI window region reservation back into dma specific path. 2018-05-03 16:32:10 +02:00
dmar.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
exynos-iommu.c IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
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 iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +02:00
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 iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +02:00
intel_irq_remapping.c irq_remapping: Use apic_ack_irq() 2018-06-06 15:18:20 +02:00
intel-iommu.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
intel-svm.c iommu/vt-d: Remove unnecessary parentheses 2018-05-15 16:34:53 +02:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm: Use for_each_set_bit to simplify code 2018-05-03 15:31:07 +02:00
io-pgtable-arm.c iommu/io-pgtable-arm: Make allocations NUMA-aware 2018-05-29 16:57:58 +02:00
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: Use size_t return type for all foo_unmap 2018-02-13 19:31:32 +01:00
iommu-debugfs.c iommu: Enable debugfs exposure of IOMMU driver internals 2018-07-06 14:06:30 +02:00
iommu-sysfs.c iommu: Fix wrong freeing of iommu_device->dev 2017-08-15 13:58:48 +02:00
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: Enable debugfs exposure of IOMMU driver internals 2018-07-06 14:06:30 +02:00
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: Use apic_ack_irq() 2018-06-06 15:18:20 +02:00
irq_remapping.h irq_remapping: Use apic_ack_irq() 2018-06-06 15:18:20 +02:00
Kconfig iommu: Enable debugfs exposure of IOMMU driver internals 2018-07-06 14:06:30 +02:00
Makefile iommu: Enable debugfs exposure of IOMMU driver internals 2018-07-06 14:06:30 +02:00
msm_iommu_hw-8xxx.h iommu/msm: Move mach includes to iommu directory 2013-08-06 11:18:03 -07:00
msm_iommu.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
msm_iommu.h iommu/msm: Make use of iommu_device_register interface 2017-02-10 13:44:57 +01:00
mtk_iommu_v1.c IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
mtk_iommu.c iommu/mediatek: Fix protect memory setting 2018-03-21 06:13:57 -05:00
mtk_iommu.h iommu/mediatek: Fix protect memory setting 2018-03-21 06:13:57 -05:00
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 treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
omap-iommu.h iommu/omap: Add support to program multiple iommus 2017-09-19 11:32:05 +02:00
omap-iopgtable.h iommu/omap: Use BIT(x) macros in omap-iopgtable.h 2015-08-03 16:04:42 +02:00
qcom_iommu.c iommu/qcom: Simplify getting .drvdata 2018-05-03 15:18:26 +02:00
rockchip-iommu.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
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 treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
tegra-smmu.c iommu/tegra-smmu: Fix return value check in tegra_smmu_group_get() 2017-12-20 18:32:08 +01:00