iommu_flush_dev_iotlb() is called to invalidate caches on device. It only
loops the devices which are full-attached to the domain. For sub-devices,
this is ineffective. This results in invalid caching entries left on the
device. Fix it by adding loop for subdevices as well. Also, the domain->
has_i
In the existing code, loop all devices attached to a domain does not
include sub-devices attached via iommu_aux_attach_device().
This was found by when I'm working on the belwo patch, There is no
device in the domain->devices list, thus unable to get the cap and
ecap of iommu unit. But this domain
Current struct intel_svm has a field to record the struct intel_iommu
pointer for a PASID bind. And struct intel_svm will be shared by all
the devices bind to the same process. The devices may be behind different
DMAR units. As the iommu driver code uses the intel_iommu pointer stored
in intel_svm
Hi Baolu, Joerg, Will,
This patchset aims to fix a bug regards to native SVM usage, and
also several bugs around subdevice (attached to device via auxiliary
manner) tracking and ineffective device_tlb flush.
v2 -> v3:
- Address comments from Baolu Lu against v2
- Rebased to 5.11-rc1
v2:
https://
The MSM DRM driver depends on the availability of the ARM LPAE io-pgtable
format code to work properly. In preparation for having the io-pgtable
formats as modules, add a "pre" dependency with MODULE_SOFTDEP() to
ensure that the io-pgtable-arm format module is loaded before loading
the MSM DRM driv
The Panfrost DRM driver depends on the availability of the ARM LPAE
io-pgtable format code to work properly. In preparation for having the
io-pgtable formats as modules, add a "pre" dependency with
MODULE_SOFTDEP() to ensure that the io-pgtable-arm format module is loaded
before loading the Panfros
Now that everything is in place for modular io-pgtable formats,
allow the ARM LPAE and ARMV7S io-pgtable formats to be built
as modules, and allow the io-pgtable framework to be enabled,
without having to explicitly enable an io-pgtable format.
Signed-off-by: Isaac J. Manjarres
---
drivers/iommu
In preparation for modularizing io-pgtable formats, add support
for reference counting the io-pgtable format modules to ensure
that the modules are not unloaded while they are in use.
Signed-off-by: Isaac J. Manjarres
---
drivers/iommu/io-pgtable-arm-v7s.c | 1 +
drivers/iommu/io-pgtable-arm.c
The SMMU driver depends on the availability of the ARM LPAE
io-pgtable format code to work properly. In preparation
for having the io-pgtable formats as modules, add a "pre"
dependency with MODULE_SOFTDEP() to ensure that the ARM LPAE
io-pgtable format module is loaded before loading the ARM SMMU
d
The io-pgtable code constructs an array of init functions for each
page table format at compile time. This is not ideal, as it prevents
io-pgtable formats from being built as kernel modules.
In preparation for modularizing the io-pgtable formats, switch to a
dynamic registration scheme, where each
The SMMUv3 driver depends on the availability of the ARM LPAE io-pgtable
format code to work properly. In preparation for having the io-pgtable
formats as modules, add a "pre" dependency with MODULE_SOFTDEP() to
ensure that the io-pgtable-arm format module is loaded before loading
the ARM SMMUv3 dr
The goal of the Generic Kernel Image (GKI) effort is to have a common
kernel image that works across multiple Android devices. This involves
generating a kernel image that has core features integrated into it,
while SoC specific functionality can be added to the kernel for the
device as a module.
spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().
Signed-off-by: Zheng Yongjun
---
drivers/iommu/amd/iommu_v2.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/
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