On 2023/8/12 19:28, Jason Gunthorpe wrote:
On Sat, Aug 12, 2023 at 09:36:33AM +0800, Baolu Lu wrote:
@@ -290,6 +295,7 @@ struct iommu_ops {
unsigned long pgsize_bitmap;
struct module *owner;
struct iommu_domain *identity_domain;
+ struct iommu_domain *default_domain
On Fri, 11 Aug 2023 06:45:14 +
Christophe Leroy wrote:
> Le 11/08/2023 à 01:48, Erhard Furtner a écrit :
> > I wanted to fire up my PowerMac G4 MDD (Dual CPU) with a KASAN debug build
> > of kernel 6.5-rc5 for testing purposes. But the kernel fails to boot at a
> > very early stage. I only
On 2023/8/3 8:07, Jason Gunthorpe wrote:
POWER is using the set_platform_dma_ops() callback to hook up its private
dma_ops, but this is buired under some indirection and is weirdly
happening for a BLOCKED domain as well.
For better documentation create a PLATFORM domain to manage the dma_ops,
si
On 2023/8/3 8:07, Jason Gunthorpe wrote:
The PLATFORM domain will be set as the default domain and attached as
normal during probe. The driver will ignore the initial attach from a NULL
domain to the PLATFORM domain.
After this, the PLATFORM domain's attach_dev will be called whenever we
detach
On 2023/8/3 8:07, Jason Gunthorpe wrote:
This driver is nonsensical. To not block migrating the core API away from
NULL default_domains give it a hacky of a PLATFORM domain that keeps it
working exactly as it always did.
Leave some comments around to warn away any future people looking at this.
On 2023/8/3 8:07, Jason Gunthorpe wrote:
What mtk does during mtk_iommu_v1_set_platform_dma() is actually putting
the iommu into identity mode. Make this available as a proper IDENTITY
domain.
The mtk_iommu_v1_def_domain_type() from
commit 8bbe13f52cb7 ("iommu/mediatek-v1: Add def_domain_type")
On 2023/8/3 8:07, Jason Gunthorpe wrote:
Even though dma-iommu.c and CONFIG_ARM_DMA_USE_IOMMU do approximately the
same stuff, the way they relate to the IOMMU core is quiet different.
dma-iommu.c expects the core code to setup an UNMANAGED domain (of type
IOMMU_DOMAIN_DMA) and then configures i
On 2023/8/3 8:07, Jason Gunthorpe wrote:
What exynos calls exynos_iommu_detach_device is actually putting the iommu
into identity mode.
Move to the new core support for ARM_DMA_USE_IOMMU by defining
ops->identity_domain.
Tested-by: Marek Szyprowski
Acked-by: Marek Szyprowski
Signed-off-by: Jaso
On 2023/8/3 8:07, Jason Gunthorpe wrote:
What tegra-smmu does during tegra_smmu_set_platform_dma() is actually
putting the iommu into identity mode.
Move to the new core support for ARM_DMA_USE_IOMMU by defining
ops->identity_domain.
Signed-off-by: Jason Gunthorpe
---
drivers/iommu/tegra-smmu
On 2023/8/3 8:07, Jason Gunthorpe wrote:
All ARM64 iommu drivers should support IOMMU_DOMAIN_DMA to enable
dma-iommu.c.
tegra is blocking dma-iommu usage, and also default_domain's, because it
wants an identity translation. This is needed for some device quirk. The
correct way to do this is to s
On 2023/8/3 8:08, Jason Gunthorpe wrote:
What omap does during omap_iommu_set_platform_dma() is actually putting
the iommu into identity mode.
Move to the new core support for ARM_DMA_USE_IOMMU by defining
ops->identity_domain.
This driver does not support IOMMU_DOMAIN_DMA, however it cannot be
On 2023/8/3 8:08, Jason Gunthorpe wrote:
What msm does during msm_iommu_set_platform_dma() is actually putting the
iommu into identity mode.
Move to the new core support for ARM_DMA_USE_IOMMU by defining
ops->identity_domain.
This driver does not support IOMMU_DOMAIN_DMA, however it cannot be
c
On Wed Aug 9, 2023 at 6:01 PM AEST, Christophe Leroy wrote:
> With skiboot_defconfig, Clang reports:
>
> CC arch/powerpc/mm/book3s64/radix_tlb.o
> arch/powerpc/mm/book3s64/radix_tlb.c:419:20: error: unused function
> '_tlbie_pid_lpid' [-Werror,-Wunused-function]
> static inline void _tlbie_
On 2023/8/3 8:08, Jason Gunthorpe wrote:
This brings back the ops->detach_dev() code that commit
1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it
into an IDENTITY domain.
Signed-off-by: Jason Gunthorpe
---
drivers/iommu/arm/arm-smmu/qcom_iommu.c | 39 ++
On 2023/8/3 8:08, Jason Gunthorpe wrote:
This brings back the ops->detach_dev() code that commit
1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it
into an IDENTITY domain.
Also reverts commit 584d334b1393 ("iommu/ipmmu-vmsa: Remove
ipmmu_utlb_disable()")
Signed-off-by: Ja
On 2023/8/3 8:08, Jason Gunthorpe wrote:
This brings back the ops->detach_dev() code that commit
1b932ceddd19 ("iommu: Remove detach_dev callbacks") deleted and turns it
into an IDENTITY domain.
Signed-off-by: Jason Gunthorpe
---
drivers/iommu/mtk_iommu.c | 23 +++
1 file
On 2023/8/3 8:08, Jason Gunthorpe wrote:
Prior to commit 1b932ceddd19 ("iommu: Remove detach_dev callbacks") the
sun50i_iommu_detach_device() function was being called by
ops->detach_dev().
This is an IDENTITY domain so convert sun50i_iommu_detach_device() into
sun50i_iommu_identity_attach() and
On 2023/8/3 8:08, Jason Gunthorpe wrote:
These drivers are all trivially converted since the function is only
called if the domain type is going to be
IOMMU_DOMAIN_UNMANAGED/DMA.
Tested-by: Heiko Stuebner
Tested-by: Steven Price
Tested-by: Marek Szyprowski
Tested-by: Nicolin Chen
Signed-off-
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