off-by: Quentin Perret
> ---
> arch/arm64/include/asm/hyp_image.h | 4
> 1 file changed, 4 insertions(+)
Acked-by: Will Deacon
Will
and in this case a simple function call is needed.
>
> Add ifdefery to kvm_host.h to symplify kvm_call_hyp() in .hyp.text.
>
> Signed-off-by: Quentin Perret
> ---
> arch/arm64/include/asm/kvm_host.h | 6 ++
> 1 file changed, 6 insertions(+)
Acked-by: Will Deacon
Will
On Mon, Feb 01, 2021 at 06:32:52PM +, Quentin Perret wrote:
> On Monday 01 Feb 2021 at 18:16:08 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:04PM +, Quentin Perret wrote:
> > > +static struct kvm_pgtable_mm_ops kvm_s2_mm_ops = {
&g
On Fri, Jan 08, 2021 at 12:15:05PM +, Quentin Perret wrote:
> Currently, the hyp code cannot make full use of a bss, as the kernel
> section is mapped read-only.
>
> While this mapping could simply be changed to read-write, it would
> intermingle even more the hyp and kernel state than they cu
On Fri, Jan 08, 2021 at 12:15:04PM +, Quentin Perret wrote:
> In preparation for enabling the creation of page-tables at EL2, factor
> all memory allocation out of the page-table code, hence making it
> re-usable with any compatible memory allocator.
>
> No functional changes intended.
>
> Si
in Perret
> ---
> arch/arm64/kvm/hyp/pgtable.c | 10 +-
> 1 file changed, 5 insertions(+), 5 deletions(-)
Acked-by: Will Deacon
Will
On Fri, Jan 08, 2021 at 12:15:02PM +, Quentin Perret wrote:
> Move the initialization of kvm_nvhe_init_params in a dedicated function
> that is run early, and only once during KVM init, rather than every time
> the KVM vectors are set and reset.
>
> This also opens the opportunity for the hype
On Fri, Jan 08, 2021 at 12:15:01PM +, Quentin Perret wrote:
> From: Will Deacon
>
> We will soon need to synchronise multiple CPUs in the hyp text at EL2.
> The qspinlock-based locking used by the host is overkill for this purpose
> and relies on the kernel's "percp
On Mon, 1 Feb 2021 10:03:05 -0500, Pavel Tatashin wrote:
> This is against for-next/kexec, fix for sparse warning that was reported by
> kernel test robot [1].
>
> [1]
> https://lore.kernel.org/linux-arm-kernel/202101292143.c6tckvvx-...@intel.com
>
> Pavel Tatashin (1):
> arm64: hibernate: add
On Mon, Feb 01, 2021 at 09:27:49PM +0800, Zhen Lei wrote:
> v4 --> v5:
> 1. Give up doing the mapping for the entire SMMU register space.
> 2. Fix some compile warnings. Sorry. So sorry.
That's alright, these things happen. However, this came in slightly too
late for 5.12, so please resend at -rc1
Koul (2):
dt-bindings: arm-smmu: Add sm8350 compatible string
iommu: arm-smmu-impl: Add SM8350 qcom iommu implementation
Will Deacon (1):
Merge branch 'for-joerg/mtk' into for-joerg/arm-smmu/updates
Yong Wu (38):
iommu: Move iotlb_sync_map out from __iommu_map
On Mon, Jan 11, 2021 at 07:18:41PM +0800, Yong Wu wrote:
> This patch mainly adds support for mt8192 Multimedia IOMMU and SMI.
>
> mt8192 also is MTK IOMMU gen2 which uses ARM Short-Descriptor translation
> table format. The M4U-SMI HW diagram is as below:
>
> EMI
>
On Mon, 1 Feb 2021 18:24:02 +0800, John Garry wrote:
> The ARM_SMMU_V3_PMU dependency on ARM_SMMU_V3_PMU was added with the idea
> that a SMMUv3 PMCG would only exist on a system with an associated SMMUv3.
>
> However it is not the job of Kconfig to make these sorts of decisions (even
> if it were
On Sat, Jan 30, 2021 at 03:14:13PM +0800, Zhen Lei wrote:
> According to the SMMUv3 specification:
> Each PMCG counter group is represented by one 4KB page (Page 0) with one
> optional additional 4KB page (Page 1), both of which are at IMPLEMENTATION
> DEFINED base addresses.
>
> This means that t
The following commit has been merged into the core/mm branch of tip:
Commit-ID: 912efa17e5121693dfbadae29768f4144a3f9e62
Gitweb:
https://git.kernel.org/tip/912efa17e5121693dfbadae29768f4144a3f9e62
Author:Will Deacon
AuthorDate:Wed, 27 Jan 2021 23:53:42
Committer
The following commit has been merged into the core/mm branch of tip:
Commit-ID: d8b450530b90f8845ab962af18b8a10ed77fc889
Gitweb:
https://git.kernel.org/tip/d8b450530b90f8845ab962af18b8a10ed77fc889
Author:Will Deacon
AuthorDate:Wed, 27 Jan 2021 23:53:44
Committer
The following commit has been merged into the core/mm branch of tip:
Commit-ID: a72afd873089c697053e9daa85ff343b3140d2e7
Gitweb:
https://git.kernel.org/tip/a72afd873089c697053e9daa85ff343b3140d2e7
Author:Will Deacon
AuthorDate:Wed, 27 Jan 2021 23:53:45
Committer
The following commit has been merged into the core/mm branch of tip:
Commit-ID: ae8eba8b5d723a4ca543024b6e51f4d0f4fb6b6b
Gitweb:
https://git.kernel.org/tip/ae8eba8b5d723a4ca543024b6e51f4d0f4fb6b6b
Author:Will Deacon
AuthorDate:Wed, 27 Jan 2021 23:53:43
Committer
The following commit has been merged into the core/mm branch of tip:
Commit-ID: 8cf55f24ce6cf90eb8828421e15e9efcd508bd2c
Gitweb:
https://git.kernel.org/tip/8cf55f24ce6cf90eb8828421e15e9efcd508bd2c
Author:Will Deacon
AuthorDate:Wed, 27 Jan 2021 23:53:47
Committer
The following commit has been merged into the core/mm branch of tip:
Commit-ID: c7bd8010a335260927e3643e79360272f9aca266
Gitweb:
https://git.kernel.org/tip/c7bd8010a335260927e3643e79360272f9aca266
Author:Will Deacon
AuthorDate:Wed, 27 Jan 2021 23:53:46
Committer
On Fri, Jan 29, 2021 at 03:12:59PM +0530, Sai Prakash Ranjan wrote:
> On 2021-01-29 14:35, Will Deacon wrote:
> > On Mon, Jan 11, 2021 at 07:45:04PM +0530, Sai Prakash Ranjan wrote:
> > > Add a new page protection flag IOMMU_LLC which can be used
> > > by non-cohere
On Thu, Jan 28, 2021 at 09:10:20PM +, Will Deacon wrote:
> On Wed, Jan 27, 2021 at 05:39:16PM +0800, Yong Wu wrote:
> > On Tue, 2021-01-26 at 22:23 +0000, Will Deacon wrote:
> > > On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote:
> > > > If group->defaul
On Wed, Jan 27, 2021 at 05:39:16PM +0800, Yong Wu wrote:
> On Tue, 2021-01-26 at 22:23 +0000, Will Deacon wrote:
> > On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote:
> > > If group->default_domain exists, avoid reallocate it.
> > >
> > > In some iomm
On Wed, Jan 27, 2021 at 07:32:55PM +0800, Zhen Lei wrote:
> v2 --> v3:
> Patch 3 is updated because https://lkml.org/lkml/2021/1/22/532 has been
> queued in advance.
>
> v1 --> v2:
> According to Robin Murphy's suggestion: https://lkml.org/lkml/2021/1/20/470
> Don't reserve the PMCG register spac
On Thu, Jan 28, 2021 at 04:53:26PM +0800, Lecopzer Chen wrote:
>
> > On Sat, Jan 09, 2021 at 06:32:52PM +0800, Lecopzer Chen wrote:
> > > After KASAN_VMALLOC works in arm64, we can randomize module region
> > > into vmalloc area now.
> > >
> > > Test:
> > > VMALLOC area ffc01000 ff
vendor events arm64: Reference common and uarch events for A76
For the series:
Acked-by: Will Deacon
Will
On Thu, 28 Jan 2021 11:06:26 +0100, Geert Uytterhoeven wrote:
> If CONFIG_MMU is not set (e.g. m68k/m5272c3_defconfig):
>
> mm/nommu.c:1671:6: error: conflicting types for ‘filemap_map_pages’
> 1671 | void filemap_map_pages(struct vm_fault *vmf,
> | ^
> In
On Thu, Jan 28, 2021 at 04:26:09PM +0100, Geert Uytterhoeven wrote:
> Hi Naresh,
>
> On Thu, Jan 28, 2021 at 3:25 PM Naresh Kamboju
> wrote:
> > arm, sh and riscv architecture build failed on today's Linux next tag
> > 20210128.
> >
> > FYI,
> > # CONFIG_MMU is not set on these failed configs.
>
: Linus Torvalds
Link:
https://lore.kernel.org/r/CAHk-=wjQWa14_4UpfDf=fiinenp+rh74kzedmo_f1d35xnz...@mail.gmail.com
Signed-off-by: Will Deacon
---
arch/ia64/include/asm/tlb.h | 2 +-
arch/x86/kernel/ldt.c | 2 +-
fs/exec.c | 2 +-
include/linux/mm_types.h| 3 +--
mm
ether: managing both the
'tlb_flush_pending' flag on the 'mm_struct' and explicit TLB
invalidation for the sort-dirty path, much like mprotect() does already.
Fixes: 0758cd830494 ("asm-generic/tlb: avoid potential double flush”)
Acked-by: Peter Zijlstra (Intel)
Rev
range starting at TASK_SIZE. Such a large range
will be converted into a 'fullmm' flush by the low-level invalidation
code, so change the caller to invoke tlb_gather_mmu_fullmm() directly.
Cc: Thomas Gleixner
Acked-by: Peter Zijlstra (Intel)
Reviewed-by: Yu Zhao
Signed-off-by: W
If __tlb_remove_tlb_entry() is not defined by the architecture then
we provide an empty definition in asm-generic/tlb.h.
Remove the redundant empty definitions for sparc64 and x86.
Acked-by: Peter Zijlstra (Intel)
Reviewed-by: Yu Zhao
Suggested-by: Peter Zijlstra
Signed-off-by: Will Deacon
all callers.
Acked-by: Peter Zijlstra (Intel)
Reviewed-by: Yu Zhao
Signed-off-by: Will Deacon
---
arch/ia64/include/asm/tlb.h | 2 +-
arch/x86/kernel/ldt.c | 2 +-
fs/exec.c | 2 +-
include/linux/mm_types.h| 3 +--
mm/hugetlb.c| 2 +-
mm/madvise.c
y: Peter Zijlstra (Intel)
Reviewed-by: Yu Zhao
Signed-off-by: Will Deacon
---
include/asm-generic/tlb.h | 6 --
include/linux/mm_types.h | 1 +
mm/mmap.c | 2 +-
mm/mmu_gather.c | 16 ++--
4 files changed, 20 insertions(+), 5 deletions(-)
diff
homas Gleixner
Cc: Linus Torvalds
Cc: Andrew Morton
Cc: Mohamed Alzayat
Cc: "Aneesh Kumar K.V"
Cc: Nadav Amit
Cc: Andrea Arcangeli
Cc: linux...@kvack.org
--->8
Will Deacon (6):
mm: proc: Invalidate TLB after clearing soft-dirty page state
tlb: mmu_gather: Remove unused start/
On Sat, Jan 09, 2021 at 06:32:52PM +0800, Lecopzer Chen wrote:
> After KASAN_VMALLOC works in arm64, we can randomize module region
> into vmalloc area now.
>
> Test:
> VMALLOC area ffc01000 fffdf000
>
> before the patch:
> module_alloc_base/end ffc00
On Wed, Jan 27, 2021 at 01:31:02PM -0500, Mimi Zohar wrote:
> On Wed, 2021-01-27 at 10:24 -0800, Lakshmi Ramasubramanian wrote:
> > On 1/27/21 10:02 AM, Will Deacon wrote:
> > > On Wed, Jan 27, 2021 at 09:56:53AM -0800, Lakshmi Ramasubramanian wrote:
> > >> On 1/27
On Wed, Jan 27, 2021 at 09:01:09PM +0100, Alexander A Sverdlin wrote:
> From: Alexander Sverdlin
>
> Drop smp_wmb in arch_mcs_spin_lock_contended() after adding in into
> ARCH-independent code.
>
> Signed-off-by: Alexander Sverdlin
> ---
> arch/arm/include/asm/mcs_spinlock.h | 2 --
> 1 file c
On Wed, Jan 27, 2021 at 09:01:08PM +0100, Alexander A Sverdlin wrote:
> From: Alexander Sverdlin
>
> Ensure writes are pushed out of core write buffer to prevent waiting code
> on another cores from spinning longer than necessary.
>
> 6 threads running tight spinlock loop competing for the same
rror.
> >
> > The series is based on linux-next/akpm.
> >
> > To simplify the testing a tree with the new patches on top has been made
> > available at [1].
> >
> > [1] https://git.gitlab.arm.com/linux-arm/linux-vf.git mte/v10.async.akpm
> >
> > Cc: Andrew
On Wed, Jan 27, 2021 at 09:59:38AM -0800, Lakshmi Ramasubramanian wrote:
> On 1/27/21 8:52 AM, Will Deacon wrote:
>
> Hi Will,
>
> > On Fri, Jan 15, 2021 at 09:30:16AM -0800, Lakshmi Ramasubramanian wrote:
> > > create_dtb() function allocates kernel virtual memory for
On Wed, Jan 27, 2021 at 09:56:53AM -0800, Lakshmi Ramasubramanian wrote:
> On 1/27/21 8:54 AM, Will Deacon wrote:
> > On Fri, Jan 15, 2021 at 09:30:17AM -0800, Lakshmi Ramasubramanian wrote:
> > > Address and size of the buffer containing the IMA measurement log need
> >
On Wed, Jan 27, 2021 at 06:24:22PM +0100, Dmitry Vyukov wrote:
> On Wed, Jan 27, 2021 at 6:15 PM Will Deacon wrote:
> >
> > On Wed, Jan 27, 2021 at 06:00:30PM +0100, Dmitry Vyukov wrote:
> > > On Wed, Jan 27, 2021 at 5:56 PM syzbot
> > > wrote:
> > > >
On Tue, Jan 26, 2021 at 03:28:22PM -0800, Hugh Dickins wrote:
> On Tue, 26 Jan 2021, Will Deacon wrote:
> > On Wed, Jan 20, 2021 at 05:36:04PM +0000, Will Deacon wrote:
> > > Hi all,
> > >
> > > This is version four of the patches I previously p
On Wed, Jan 27, 2021 at 06:00:30PM +0100, Dmitry Vyukov wrote:
> On Wed, Jan 27, 2021 at 5:56 PM syzbot
> wrote:
> >
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit:2ab38c17 mailmap: remove the "repo-abbrev" comment
> > git tree: upstream
> > console output: h
On Fri, Jan 15, 2021 at 09:30:17AM -0800, Lakshmi Ramasubramanian wrote:
> Address and size of the buffer containing the IMA measurement log need
> to be passed from the current kernel to the next kernel on kexec.
>
> Add address and size fields to "struct kimage_arch" for ARM64 platform
> to hold
On Fri, Jan 15, 2021 at 09:30:16AM -0800, Lakshmi Ramasubramanian wrote:
> create_dtb() function allocates kernel virtual memory for
> the device tree blob (DTB). This is not consistent with other
> architectures, such as powerpc, which calls kmalloc() for allocating
> memory for the DTB.
>
> Cal
On Mon, 25 Jan 2021 14:19:05 -0500, Pavel Tatashin wrote:
> Changelog:
> v10:
> - Addressed a lot of comments form James Morse and from Marc Zyngier
> - Added review-by's
> - Synchronized with mainline
>
> [...]
Applied the first 12 patches to arm64 (for-next/kexec), thanks!
[
On Mon, 25 Jan 2021 13:52:25 -0800, Isaac J. Manjarres wrote:
> When extracting the mask for a SMR that was programmed by the
> bootloader, the SMR's valid bit is also extracted and is treated
> as part of the mask, which is not correct. Consider the scenario
> where an SMMU master whose context is
On Thu, 7 Jan 2021 20:29:02 +0800, Yong Wu wrote:
> This patchset is to improve tlb flushing performance in iommu_map/unmap
> for MediaTek IOMMU.
>
> For iommu_map, currently MediaTek IOMMU use IO_PGTABLE_QUIRK_TLBI_ON_MAP
> to do tlb_flush for each a memory chunk. this is so unnecessary. we could
On Tue, Jan 26, 2021 at 11:08:31AM -0600, Vikram Sethi wrote:
> On 1/22/2021 1:48 PM, Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 10:32:16AM +, Lorenzo Pieralisi wrote:
> >> On Thu, Jan 07, 2021 at 04:05:48PM -0500, Jon Masters wrote:
> >>> On 1/7/21 1:14 PM
On Tue, Jan 26, 2021 at 10:46:04AM -0600, Jeremy Linton wrote:
> On 1/22/21 1:48 PM, Will Deacon wrote:
> > This isn't like the usual fragmentation problems, where firmware swoops in
> > to save the day; CPU onlining, spectre mitigations, early entropy etc. All
> > of th
Hi Pavel,
On Mon, Jan 25, 2021 at 02:19:05PM -0500, Pavel Tatashin wrote:
> Changelog:
> v10:
> - Addressed a lot of comments form James Morse and from Marc Zyngier
> - Added review-by's
> - Synchronized with mainline
This series has been doing the rounds for a while, but still
On Mon, Jan 25, 2021 at 12:20:14PM +0100, Vlastimil Babka wrote:
> On 1/23/21 1:32 PM, Vincent Guittot wrote:
> >> PowerPC PowerNV Host: (160 cpus)
> >> num_online_cpus 1 num_present_cpus 160 num_possible_cpus 160 nr_cpu_ids 160
> >>
> >> PowerPC pseries KVM guest: (-smp 16,maxcpus=160)
> >> num_on
On Wed, Jan 20, 2021 at 05:36:04PM +, Will Deacon wrote:
> Hi all,
>
> This is version four of the patches I previously posted here:
>
> v1: https://lore.kernel.org/r/20201209163950.8494-1-w...@kernel.org
> v2: https://lore.kernel.org/r/20210108171517.5290-1-w...@kernel
On Wed, Jan 27, 2021 at 10:05:50AM +0800, Leizhen (ThunderTown) wrote:
> I've sent another set of patches. https://lkml.org/lkml/2021/1/26/1065
> If those patches are acceptable, then this one should be ignored.
I've already queued this one, so if you want me to drop it then you need to
send me a
On Tue, Jan 26, 2021 at 06:05:10PM -0500, Pavel Tatashin wrote:
> On Tue, Jan 26, 2021 at 5:58 PM Will Deacon wrote:
> >
> > Hi Pavel,
> >
> > On Mon, Jan 25, 2021 at 02:19:05PM -0500, Pavel Tatashin wrote:
> > > Changelog:
> > > v10:
> > >
On Mon, Jan 11, 2021 at 07:18:41PM +0800, Yong Wu wrote:
> This patch mainly adds support for mt8192 Multimedia IOMMU and SMI.
>
> mt8192 also is MTK IOMMU gen2 which uses ARM Short-Descriptor translation
> table format. The M4U-SMI HW diagram is as below:
>
> EMI
>
On Mon, Jan 11, 2021 at 07:18:48PM +0800, Yong Wu wrote:
> If group->default_domain exists, avoid reallocate it.
>
> In some iommu drivers, there may be several devices share a group. Avoid
> realloc the default domain for this case.
>
> Signed-off-by: Yong Wu
> ---
> drivers/iommu/iommu.c | 3
Hi Sumit,
On Fri, Jan 15, 2021 at 05:31:41PM +0530, Sumit Garg wrote:
> With the recent feature added to enable perf events to use pseudo NMIs
> as interrupts on platforms which support GICv3 or later, its now been
> possible to enable hard lockup detector (or NMI watchdog) on arm64
> platforms. S
On Wed, Jan 13, 2021 at 09:40:47AM +0800, Jia He wrote:
> There is a 10s stall in idmap_kpti_install_ng_mappings when kernel boots
> on a Ampere EMAG server.
>
> Commit f992b4dfd58b ("arm64: kpti: Add ->enable callback to remap
> swapper using nG mappings") updates the nG bit runtime if kpti is re
On Wed, Jan 13, 2021 at 09:40:46AM +0800, Jia He wrote:
> Move init_cpu_features() ahead of setup_arch()->early_fixmap_init(), which
> is the preparation work for checking the condition to assign
> arm64_use_ng_mappings as cpus_have_const_cap(ARM64_UNMAP_KERNEL_AT_EL0).
>
> Besides, jump_label_ini
gt;
> kernel/locking/rwsem.h | 0
> 1 file changed, 0 insertions(+), 0 deletions(-)
> delete mode 100644 kernel/locking/rwsem.h
>
> diff --git a/kernel/locking/rwsem.h b/kernel/locking/rwsem.h
> deleted file mode 100644
> index e69de29bb2d1..
Acked-by: Will Deacon
Will
On Mon, Jan 25, 2021 at 08:23:40PM +, Robin Murphy wrote:
> Now we probably will need some degreee of BBML feature awareness for the
> sake of SVA if and when we start using it for CPU pagetables, but I still
> cannot see any need to consider it in io-pgtable.
Agreed; I don't think this is som
el.org/r/CA+G9fYuzE9WMSB7uGjV4gTzK510SHEdJb_UXQCzsQ5MqA=h...@mail.gmail.com
Signed-off-by: Will Deacon
---
include/linux/compiler-gcc.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index af8b4a879934..9485abe76b68 100644
--- a/include/linux/compiler-gcc.h
+++ b/in
Hi Lorenzo,
On Fri, Jan 08, 2021 at 10:32:16AM +, Lorenzo Pieralisi wrote:
> On Thu, Jan 07, 2021 at 04:05:48PM -0500, Jon Masters wrote:
> > On 1/7/21 1:14 PM, Will Deacon wrote:
> >
> > > On Mon, Jan 04, 2021 at 10:57:35PM -0600, Jeremy Linton wrote:
>
mu: Move iotlb_sync_map out from __iommu_map
> iommu: Add iova and size as parameters in iotlb_sync_map
> iommu/mediatek: Add iotlb_sync_map to sync whole the iova range
> iommu: Switch gather->end to the inclusive end
> iommu/io-pgtable: Allow io_pgtable_tlb ops optional
> iom
Hey Nick,
On Fri, Jan 22, 2021 at 11:10:50AM -0800, Nick Desaulniers wrote:
> On Thu, Jan 21, 2021 at 1:28 PM Will Deacon wrote:
> > On Thu, Jan 21, 2021 at 11:24:36AM -0800, Nick Desaulniers wrote:
> > > On Thu, Jan 21, 2021 at 5:11 AM Will Deacon wrote:
> > Sure, but
On Thu, Jan 21, 2021 at 06:44:14PM +0100, Andrey Konovalov wrote:
> On Sat, Jan 9, 2021 at 11:33 AM Lecopzer Chen wrote:
> >
> > Linux supports KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
> > ("kasan: support backing vmalloc space with real shadow memory")
> >
> > Acroding to how x86 ported it
signed long)&cur->ainsn.api.insn[1] == addr)) {
> kprobes_restore_local_irqflag(kcb, regs);
> post_kprobe_handler(cur, kcb, regs);
Acked-by: Will Deacon
Catalin can pick this up for 5.11.
Will
table-rc.git
> > > > linux-4.14.y
> > > > and the diffstat can be found below.
> > > >
> > > > thanks,
> > > >
> > > > greg k-h
> > >
> > > arm64 clang-10 builds breaks due to this patch on
> > >- stable-rc
On Fri, 15 Jan 2021 14:33:21 +0530, Vinod Koul wrote:
> Add compatible string for sm8350 iommu to documentation.
Applied to will (for-joerg/arm-smmu/updates), thanks!
[1/2] dt-bindings: arm-smmu: Add sm8350 compatible string
https://git.kernel.org/will/c/70b5b6a6daea
[2/2] iommu: arm-smmu-i
On Fri, 22 Jan 2021 21:14:48 +0800, Zhen Lei wrote:
> No functional change.
Applied to will (for-joerg/arm-smmu/updates), thanks!
[1/1] iommu/arm-smmu-v3: Use DEFINE_RES_MEM() to simplify code
https://git.kernel.org/will/c/932bc8c7d742
Cheers,
--
Will
https://fixes.arm64.dev
https://next
On Wed, 20 Jan 2021 17:40:04 -0800, Bjorn Andersson wrote:
> Add compatible for the ARM SMMU found in the Qualcomm SC8180x platform.
Applied to will (for-joerg/arm-smmu/updates), thanks!
[1/2] dt-bindings: arm-smmu-qcom: Add Qualcomm SC8180X compatible
https://git.kernel.org/will/c/9cde12ba
On Fri, Jan 22, 2021 at 09:21:20PM +0800, Leizhen (ThunderTown) wrote:
> On 2021/1/22 21:00, Robin Murphy wrote:
> > On 2021-01-22 12:51, Will Deacon wrote:
> >> On Thu, Nov 26, 2020 at 11:42:30AM +0800, Zhen Lei wrote:
> >>> - tblp = ptep - AR
On Tue, Jan 12, 2021 at 09:22:23PM -0600, Rob Herring wrote:
> On Thu, 07 Jan 2021 20:01:18 +0530, Manivannan Sadhasivam wrote:
> > Add devicetree binding for Qualcomm SDX55 SMMU.
> >
> > Cc: Will Deacon
> > Cc: Robin Murphy
> > Cc: Joerg Roedel
> &g
On Fri, Jan 22, 2021 at 12:58:58PM +, Will Deacon wrote:
> On Tue, Oct 13, 2020 at 02:34:16AM +0100, Dmitry Safonov wrote:
> > Don't allow splitting of vm_special_mapping's.
> > It affects vdso/vvar areas. Uprobes have only one page in xol_area so
> > they
390/kernel/vdso.c | 11 +--
> arch/x86/entry/vdso/vma.c | 17
> mm/mmap.c | 12
> 6 files changed, 16 insertions(+), 78 deletions(-)
For arm64:
Acked-by: Will Deacon
Will
On Thu, Nov 26, 2020 at 11:42:30AM +0800, Zhen Lei wrote:
> When changing from a set of pages/smaller blocks to a larger block for an
> address, the software should follow the sequence of BBML processing.
>
> When changing from a block to a set of pages/smaller blocks for an
> address, there's no
On Tue, Nov 24, 2020 at 12:15:58PM -0700, Jordan Crouse wrote:
> Call report_iommu_fault() to allow upper-level drivers to register their
> own fault handlers.
>
> Signed-off-by: Jordan Crouse
> ---
>
> drivers/iommu/arm/arm-smmu/arm-smmu.c | 16 +---
> 1 file changed, 13 insertions
On Thu, Jan 21, 2021 at 10:55:21AM -0800, Paul E. McKenney wrote:
> On Thu, Jan 21, 2021 at 10:37:21PM +0530, Naresh Kamboju wrote:
> > While running rcu-torture test on qemu_arm64 and arm64 Juno-r2 device
> > the following kernel crash noticed. This started happening from Linux next
> > next-20210
On Thu, Jan 21, 2021 at 11:24:36AM -0800, Nick Desaulniers wrote:
> On Thu, Jan 21, 2021 at 5:11 AM Will Deacon wrote:
> >
> > On Wed, Jan 20, 2021 at 11:02:06AM -0800, Linus Torvalds wrote:
> > > On Wed, Jan 20, 2021 at 10:27 AM Nick Desaulniers
> > >
On Wed, 20 Jan 2021 21:29:12 -0800, Sudarshan Rajagopalan wrote:
> This patch is the follow-up from the discussions in the thread [1].
> Reducing the section size has the merit of reducing wastage of reserved memory
> for vmmemmap mappings for sections with large memory holes. Also with smaller
> s
On Thu, Jan 21, 2021 at 06:15:06PM +, Marc Zyngier wrote:
> On 2021-01-21 17:55, Will Deacon wrote:
> > On Thu, Jan 21, 2021 at 04:25:54PM +, Marc Zyngier wrote:
> > > On 2021-01-21 15:12, Mohamed Mediouni wrote:
> > > > Please ignore that patch.
> > &g
On Wed, Jan 20, 2021 at 02:15:59PM +0100, Ard Biesheuvel wrote:
> On Wed, 20 Jan 2021 at 14:01, Will Deacon wrote:
> >
> > On Wed, 6 Jan 2021 10:34:48 +, Andre Przywara wrote:
> > > a fix to v5, now *really* fixing the wrong priority of SMCCC vs. RNDR
> > > i
On Thu, Jan 21, 2021 at 04:25:54PM +, Marc Zyngier wrote:
> On 2021-01-21 15:12, Mohamed Mediouni wrote:
> > Please ignore that patch.
> >
> > It turns out that the PCIe controller on Apple M1 expects posted
> > writes and so the memory range for it ought to be set nGnRE.
> > So, we need to us
On Thu, 5 Nov 2020 16:29:44 +0100, Ard Biesheuvel wrote:
> When reseeding the CRNG periodically, arch_get_random_seed_long() is
> called to obtain entropy from an architecture specific source if one
> is implemented. In most cases, these are special instructions, but in
> some cases, such as on ARM
On Thu, Jan 21, 2021 at 10:21:50PM +0530, Prathu Baronia wrote:
> This patch removes the unnecessary kmap calls in the hugepage zeroing path and
> improves the timing by 62%.
>
> I had proposed a similar change in Apr-May'20 timeframe in memory.c where I
> proposed to clear out a hugepage by direc
onstraints, lets just reduce the section size to 128MB for 4K
> and 16K base page size configs, and to 512MB for 64K base page size config.
>
> Signed-off-by: Sudarshan Rajagopalan
> Suggested-by: Anshuman Khandual
> Suggested-by: David Hildenbrand
> Cc: Catalin Marinas
&
On Wed, Jan 20, 2021 at 11:02:06AM -0800, Linus Torvalds wrote:
> On Wed, Jan 20, 2021 at 10:27 AM Nick Desaulniers
> wrote:
> >
> > Is there a difference between: [ const unnamed struct and individual const
> > members ]
>
> Semantically? No.
>
> Syntactically the "group the const members toge
On Wed, Jan 20, 2021 at 10:21:33AM -0800, Nick Desaulniers wrote:
> On Wed, Jan 20, 2021 at 9:36 AM Will Deacon wrote:
> >
> > In preparation for const-ifying the anonymous struct field of
> > 'struct vm_fault', ensure that it is initialised using static
> &
On Wed, Jan 20, 2021 at 10:13:37AM -0800, Nick Desaulniers wrote:
> On Wed, Jan 20, 2021 at 9:36 AM Will Deacon wrote:
> >
> > 'struct vm_fault' contains both information about the fault being
> > serviced alongside mutable fields contributing to the state
On Thu, Jan 21, 2021 at 11:44:23AM +, Marc Zyngier wrote:
> On 2021-01-21 11:27, Will Deacon wrote:
> > On Wed, Jan 20, 2021 at 02:27:13PM +0100, Mohamed Mediouni wrote:
> > > Use nGnRnE instead of nGnRE on Apple SoCs to workaround a serious
> > > hardware q
On Wed, Jan 20, 2021 at 02:27:13PM +0100, Mohamed Mediouni wrote:
> Use nGnRnE instead of nGnRE on Apple SoCs to workaround a serious hardware
> quirk.
>
> On Apple processors, writes using the nGnRE device memory type get dropped in
> flight,
> getting to nowhere.
>
> Signed-off-by: Stan Skowr
On Wed, Jan 20, 2021 at 01:45:24PM +, Andre Przywara wrote:
> On Wed, 20 Jan 2021 13:26:26 +
> Marc Zyngier wrote:
>
> Hi,
>
> > On 2021-01-20 13:01, Will Deacon wrote:
> > > On Wed, 6 Jan 2021 10:34:48 +, Andre Przywara wrote:
> > >>
s
Link:
https://lore.kernel.org/r/CAHk-=whYs9XsO88iqJzN6NC=D-dp2m0oYXuOoZ=eWnvv=5o...@mail.gmail.com
Signed-off-by: Will Deacon
---
include/linux/mm.h | 13 -
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 251a2339befb..
re.kernel.org/r/20201229132819.najtavneutnf7ajp@box
Signed-off-by: Kirill A. Shutemov
[will: s/from from/from/ in comment; spotted by willy]
Signed-off-by: Will Deacon
---
fs/xfs/xfs_file.c | 6 +-
include/linux/mm.h | 12 ++-
include/linux/pgtable.h | 11 +++
mm/filemap.c
c: Andrew Morton
Cc: Kirill A. Shutemov
Cc: Linus Torvalds
Reported-by: Vinayak Menon
Signed-off-by: Will Deacon
---
include/linux/mm.h | 5 -
mm/filemap.c | 14 ++
mm/memory.c| 20 +++-
3 files changed, 33 insertions(+), 6 deletions(-)
diff --git
c:
--->8
Kirill A. Shutemov (1):
mm: Cleanup faultaround and finish_fault() codepaths
Will Deacon (7):
mm: Allow architectures to request 'old' entries when prefaulting
arm64: mm: Implement arch_wants_old_prefaulted_pte()
mm: Move immutable fields of 'struct v
e extended in future
based on MIDR matching if necessary.
Cc: Catalin Marinas
Signed-off-by: Will Deacon
---
arch/arm64/include/asm/pgtable.h | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.
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