On Sat, Apr 02, 2022 at 12:29:19PM +0200, Christophe Leroy wrote:
> powerpc's asm/prom.h brings some headers that it doesn't
> need itself.
>
> In order to clean it up, first add missing headers in
> users of asm/prom.h
>
> Signed-off-by: Christophe Leroy
I don't understand this. It changes not
On Sat, Apr 02, 2022 at 06:13:31PM +0200, Christophe Leroy wrote:
> From: Chen Jingwen
>
> This is backport for 5.4
>
> Upstream commit 5647a94a26e352beed61788b46e035d9d12664cd
This is not a commit in Linus's tree :(
Le 03/04/2022 à 12:25, Greg KH a écrit :
> On Sat, Apr 02, 2022 at 06:13:31PM +0200, Christophe Leroy wrote:
>> From: Chen Jingwen
>>
>> This is backport for 5.4
>>
>> Upstream commit 5647a94a26e352beed61788b46e035d9d12664cd
>
> This is not a commit in Linus's tree :(
>
Oops. Don't know what
The device_node pointer is returned by of_parse_phandle() with
refcount incremented. We should use of_node_put() on it when done.
This function only calls of_node_put() in the regular path.
And it will cause refcount leak in error path.
Fixes: 986585385131 ("[POWERPC] Add QUICC Engine (QE) infrast
On Sun, Apr 03, 2022 at 11:54:55AM +, Christophe Leroy wrote:
>
>
> Le 03/04/2022 à 12:25, Greg KH a écrit :
> > On Sat, Apr 02, 2022 at 06:13:31PM +0200, Christophe Leroy wrote:
> >> From: Chen Jingwen
> >>
> >> This is backport for 5.4
> >>
> >> Upstream commit 5647a94a26e352beed61788b46e0
From: Chen Jingwen
This is backport for 5.4
Upstream commit dd75080aa8409ce10d50fb58981c6b59bf8707d3
The shadow's page table is not updated when PTE_RPN_SHIFT is 24
and PAGE_SHIFT is 12. It not only causes false positives but
also false negative as shown the following text.
Fix it by bringing
Borislav Petkov writes:
> On Thu, Mar 31, 2022 at 12:13:10PM +0200, Christophe Leroy wrote:
>> Since commit 8a4ab218ef70 ("powerpc/85xx: Change deprecated binding
>> for 85xx-based boards"), those bindings are not used anymore.
>>
>> A comment in drivers/edac/mpc85xx_edac.c say they are to be rem
Remove the bogus Xen override that was usually larger than the actual
size and just calculate the value on demand. Note that
swiotlb_max_segment still doesn't make sense as an interface and should
eventually be removed.
Signed-off-by: Christoph Hellwig
Reviewed-by: Anshuman Khandual
---
driver
Hi all,
this series tries to clean up the swiotlb initialization, including
that of swiotlb-xen. To get there is also removes the x86 iommu table
infrastructure that massively obsfucates the initialization path.
Git tree:
git://git.infradead.org/users/hch/misc.git swiotlb-init-cleanup
Gitw
Use the more specific is_swiotlb_active check instead of checking the
global swiotlb_force variable.
Signed-off-by: Christoph Hellwig
Reviewed-by: Anshuman Khandual
---
kernel/dma/direct.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/dma/direct.h b/kernel/dma/direc
If force bouncing is enabled we can't release the buffers.
Signed-off-by: Christoph Hellwig
Reviewed-by: Anshuman Khandual
---
kernel/dma/swiotlb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 73a41cec9e386..98bb0eb44a7bf 100644
--- a/
swiotlb_late_init_with_default_size is an overly verbose name that
doesn't even catch what the function is doing, given that the size is
not just a default but the actual requested size.
Rename it to swiotlb_init_late.
Signed-off-by: Christoph Hellwig
Reviewed-by: Anshuman Khandual
---
arch/x8
From: Stefano Stabellini
It used to be that Linux enabled swiotlb-xen when running a dom0 on ARM.
Since f5079a9a2a31 "xen/arm: introduce XENFEAT_direct_mapped and
XENFEAT_not_direct_mapped", Linux detects whether to enable or disable
swiotlb-xen based on the new feature flags: XENFEAT_direct_mapp
Use the generic swiotlb initialization helper instead of open coding it.
Signed-off-by: Christoph Hellwig
Acked-by: Thomas Bogendoerfer
---
arch/mips/cavium-octeon/dma-octeon.c | 15 ++-
arch/mips/pci/pci-octeon.c | 2 +-
2 files changed, 3 insertions(+), 14 deletions(-)
The IOMMU table tries to separate the different IOMMUs into different
backends, but actually requires various cross calls.
Rewrite the code to do the generic swiotlb/swiotlb-xen setup directly
in pci-dma.c and then just call into the IOMMU drivers.
Signed-off-by: Christoph Hellwig
---
arch/ia64
Move enabling SWIOTLB_FORCE for guest memory encryption into common code.
Signed-off-by: Christoph Hellwig
---
arch/x86/kernel/cpu/mshyperv.c | 8
arch/x86/kernel/pci-dma.c | 8
arch/x86/mm/mem_encrypt_amd.c | 3 ---
3 files changed, 8 insertions(+), 11 deletions(-)
diff
Power SVM wants to allocate a swiotlb buffer that is not restricted to
low memory for the trusted hypervisor scheme. Consolidate the support
for this into the swiotlb_init interface by adding a new flag.
Signed-off-by: Christoph Hellwig
---
arch/powerpc/include/asm/svm.h | 4
arch/p
Pass a bool to pass if swiotlb needs to be enabled based on the
addressing needs and replace the verbose argument with a set of
flags, including one to force enable bounce buffering.
Note that this patch removes the possibility to force xen-swiotlb
use using swiotlb=force on the command line on x8
Let the caller chose a zone to allocate from. This will be used
later on by the xen-swiotlb initialization on arm.
Signed-off-by: Christoph Hellwig
Reviewed-by: Anshuman Khandual
---
arch/x86/pci/sta2x11-fixup.c | 2 +-
include/linux/swiotlb.h | 2 +-
kernel/dma/swiotlb.c | 7 ++--
To shared more code between swiotlb and xen-swiotlb, offer a
swiotlb_init_remap interface and add a remap callback to
swiotlb_init_late that will allow Xen to remap the buffer the
buffer without duplicating much of the logic.
Signed-off-by: Christoph Hellwig
---
arch/x86/pci/sta2x11-fixup.c | 2
Reuse the generic swiotlb initialization for xen-swiotlb. For ARM/ARM64
this works trivially, while for x86 xen_swiotlb_fixup needs to be passed
as the remap argument to swiotlb_init_remap/swiotlb_init_late.
Note that the lower bound of the swiotlb size is changed to the smaller
IO_TLB_MIN_SLABS
No users left.
Signed-off-by: Christoph Hellwig
---
include/linux/swiotlb.h | 2 --
kernel/dma/swiotlb.c| 77 +++--
2 files changed, 20 insertions(+), 59 deletions(-)
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 7b50c82f84ce9..7ed
gets pulled in by all drivers using the DMA API.
Remove x86 internal variables and unnecessary includes from it.
Signed-off-by: Christoph Hellwig
---
arch/x86/include/asm/dma-mapping.h | 11 ---
arch/x86/include/asm/iommu.h | 2 ++
2 files changed, 2 insertions(+), 11 deletions(-
Hi Andrew,
Le 11/03/2022 à 05:49, Andrew Morton a écrit :
> On Fri, 11 Mar 2022 15:26:42 +1100 Michael Ellerman
> wrote:
>
>>> What will be the merge strategy ? I guess it's a bit late to get it
>>> through powerpc tree, so I was just wondering whether we could get
>>> patches 2 to 5 in mm this
On 01-04-22, 19:24, Christophe Leroy wrote:
> powerpc's asm/prom.h brings some headers that it doesn't
> need itself.
>
> In order to clean it up, first add missing headers in
> users of asm/prom.h
>
> Signed-off-by: Christophe Leroy
> ---
> drivers/cpufreq/pasemi-cpufreq.c | 1 -
> driver
rsk7201_defconfig
sh rts7751r2d1_defconfig
arm pxa910_defconfig
i386 randconfig-c001-20220404
x86_64 randconfig-c001-20220404
arm randconfig-c002-20220404
arm randconfig-c002-20220403
x86_64
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