exception vectors when they are placed too far
from the rest of the kernel;
- fix uaccess-related livelock in do_page_fault.
Max Filippov (2):
xtensa: move coprocessor_flush to the .text section
xtensa: fix uaccess-related
On Sun, Mar 28, 2021 at 10:18 PM Bhaskar Chowdhury
wrote:
>
> s/controlers/controllers/
>
> Signed-off-by: Bhaskar Chowdhury
> ---
> Documentation/xtensa/atomctl.rst | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/xtensa/atomctl.rst
>
On Sun, Mar 28, 2021 at 10:37 PM Max Filippov wrote:
>
> On Sun, Mar 28, 2021 at 10:18 PM Bhaskar Chowdhury
> wrote:
> >
> > s/controlers/controllers/
> >
> > Signed-off-by: Bhaskar Chowdhury
> > ---
> > Documentation/xtensa/atomctl.rst | 2 +-
&g
that instruction and the fault handler.
https://lore.kernel.org/lkml/20210121123140.GD48431@C02TD0UTHF1T.local/
Cc: sta...@vger.kernel.org
Reported-by: Mark Rutland
Signed-off-by: Max Filippov
---
arch/xtensa/mm/fault.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/xtensa/mm
choices there.
Signed-off-by: Max Filippov
---
arch/xtensa/Kconfig | 22
.../iss/include/platform/simcall-gdbio.h | 34 ++
.../platforms/iss/include/platform/simcall.h | 36 +++
3 files changed, 92 insertions(+)
create
Disconnect existing ISS simcall implementation from the semihosting
interface to allow for alternative implementations selectable at
configure time.
Signed-off-by: Max Filippov
---
.../iss/include/platform/simcall-iss.h| 73 +++
.../platforms/iss/include/platform
using GDBIO implementation of the semihosting interface.
Max Filippov (2):
xtensa: ISS: split simcall implementation from semihosting interface
xtensa: ISS: add GDBIO implementation to semihosting interface
arch/xtensa/Kconfig | 22
.../iss/include/platform
On Thu, Mar 25, 2021 at 6:29 PM Bhaskar Chowdhury wrote:
>
>
> s/compitible/compatible/
>
> Signed-off-by: Bhaskar Chowdhury
> ---
> arch/xtensa/platforms/iss/include/platform/simcall.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks, applied to my xtensa tree with minor
On Wed, Mar 24, 2021 at 9:09 PM Bhaskar Chowdhury wrote:
>
> s/contans/contains/
> s/desination/destination/
>
> Signed-off-by: Bhaskar Chowdhury
> ---
> arch/xtensa/kernel/head.S | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
Thanks, applied to my xtensa tree.
--
Thanks.
--
Commit a9f2fc628e3a ("xtensa: cleanup MMU setup and kernel layout macros")
removed the use of a2 in the beginning of the initialize_mmu macro, but
left the register load that is no longer used. Remove it as well.
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/initialize_mmu.h
pgprot_noncached assumes that cache bypass attribute is represented as
zero. This may not always be true. Fix pgprot_noncached definition by
adding _PAGE_CA_BYPASS to the result.
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/pgtable.h | 4 +++-
1 file changed, 3 insertions(+), 1
'.
Simplify this logic and drop special handling of low memory pages/pages
with coherent mapping and always use TLBTEMP_BASE area.
Signed-off-by: Max Filippov
---
arch/xtensa/mm/cache.c | 9 ++---
arch/xtensa/mm/misc.S | 36 +---
2 files changed, 7 insertions(+), 38
On Mon, Mar 1, 2021 at 7:37 AM Masahiro Yamada wrote:
>
> arch/xtensa/kernel/syscalls/syscalltbl.sh fills missing syscall numbers
> with sys_ni_syscall.
>
> So, the generated arch/xtensa/include/generated/asm/syscall_table.h
> has no hole.
>
> Hence, the line:
>
> [0 ... __NR_syscalls - 1] =
On Sat, Mar 13, 2021 at 4:24 AM Masahiro Yamada wrote:
>
> Move the definition of CONFIG_CPU_*_ENDIAN to Kconfig, the best place
> for CONFIG options.
>
> I slightly simplified the test code. You can use the -P option to suppress
> linemarker generation. The grep command is unneeded.
>
> $ echo
he logic to Kconfig from Makefile.
>
>
> arch/xtensa/Kconfig | 6 ++
> arch/xtensa/Makefile | 9 +
> 2 files changed, 7 insertions(+), 8 deletions(-)
Acked-by: Max Filippov
Please let me know if I should take it into the xtensa tree or you will
carry it in the kbuild tree.
--
Thanks.
-- Max
On Tue, Mar 9, 2021 at 11:10 PM Jiapeng Chong
wrote:
>
> Fix the following coccicheck warning:
>
> ./arch/xtensa/kernel/pci.c:79:17-18: WARNING comparing pointer to 0.
>
> Reported-by: Abaci Robot
> Signed-off-by: Jiapeng Chong
> ---
> arch/xtensa/kernel/pci.c | 2 +-
> 1 file changed, 1
On Mon, Mar 1, 2021 at 10:22 PM Jiri Slaby wrote:
>
> We already do tty_port_link_device in rs_init, so we don't need to
> reassign a port to tty->port. It would be too late in tty::ops::open
> anyway.
>
> Signed-off-by: Jiri Slaby
> Cc: Chris Zankel
> Cc: Max Filippo
In the next patch, tty_unregister_driver's return type will be switched
> to void.
>
> Signed-off-by: Jiri Slaby
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-xte...@linux-xtensa.org
> Cc: Jiri Kosina
> Cc: David Sterba
> ---
> arch/xtensa/platforms/iss
On Mon, Mar 1, 2021 at 10:22 PM Jiri Slaby wrote:
>
> To fix the warning:
> warning: no previous prototype for 'rs_init'
>
> Signed-off-by: Jiri Slaby
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-xte...@linux-xtensa.org
> ---
> arch/xtensa/platforms/iss/cons
On Mon, Mar 1, 2021 at 10:22 PM Jiri Slaby wrote:
>
> Use DEFINE_TIMER and avoid runtime initialization of the serial_timer.
>
> Signed-off-by: Jiri Slaby
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-xte...@linux-xtensa.org
> ---
> arch/xtensa/p
On Mon, Mar 1, 2021 at 10:22 PM Jiri Slaby wrote:
>
> These are likely taken over from amiserial. iss doesn't do anything of
> that.
>
> Signed-off-by: Jiri Slaby
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-xte...@linux-xtensa.org
> ---
> arch/xtens
On Mon, Mar 1, 2021 at 10:22 PM Jiri Slaby wrote:
>
> There is no need to print the information during module load. Neither to
> print some artificial version. So drop these strings and a print.
>
> Signed-off-by: Jiri Slaby
> Cc: Chris Zankel
> Cc: Max Filippov
>
-by: Max Filippov
---
arch/xtensa/kernel/coprocessor.S | 64
1 file changed, 33 insertions(+), 31 deletions(-)
diff --git a/arch/xtensa/kernel/coprocessor.S b/arch/xtensa/kernel/coprocessor.S
index c426b846beef..45cc0ae0af6f 100644
--- a/arch/xtensa/kernel
; Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-arm-ker...@lists.infradead.org
> Cc: linux-m...@vger.kernel.org
> Cc: linuxppc-...@lists.ozlabs.org
> Cc: linux-xte...@linux-xtensa.org
> Cc: linux...@kvack.org
> Cc: linux-kernel@vger
Hi Arnd,
On Thu, Jan 14, 2021 at 1:25 PM Arnd Bergmann wrote:
> | arch/mips/Kconfig:config HIGHMEM
> | arch/xtensa/Kconfig:config HIGHMEM
>
> AFAICT On MIPS (prior to MIPS32r3) and xtensa, you have at
> most 512MB in the linear map, so the VMSPLIT_2G or VMSPLIT_4G_4G
> tricks won't work.
oprofile/backtrace.c
> delete mode 100644 arch/xtensa/oprofile/init.c
Although I still keep userspace oprofile tools that use this interface,
I haven't run them for ages.
Acked-by: Max Filippov
--
Thanks.
-- Max
On Thu, Dec 17, 2020 at 9:24 AM Colin King wrote:
>
> From: Colin Ian King
>
> There is a spelling mistake in the Kconfig help text. Fix it.
>
> Signed-off-by: Colin Ian King
> ---
> arch/xtensa/Kconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Thanks. Applied to my xtensa tree.
() prototype
Max Filippov (2):
xtensa: fix TLBTEMP area placement
xtensa: disable preemption around cache alias management calls
Documentation/xtensa/mmu.rst | 9 ++---
arch/xtensa/include/asm/pgtable.h | 2 +-
arch/xtensa/include/asm/uaccess.h | 2 +-
arch/xtensa/mm/cache.c
enum which originates from the initial copy of this code from i386.
Reported-by: Max Filippov
Fixes: 629ed3f7dad2 ("xtensa/mm/highmem: Switch to generic kmap atomic")
Signed-off-by: Thomas Gleixner
Signed-off-by: Max Filippov
Tested-by: Max Filippov
---
Changes v1->v2:
- fix off
Hi Thomas,
On Fri, Nov 13, 2020 at 2:34 PM Thomas Gleixner wrote:
> I agree that the top down mechanics is not really intuitive, but that
> does not justify the ifdeffery in the generic code.
But then maybe xtensa did the right thing where everyone else just
copied the not really intuitive
management calls to enforce
that.
Cc: sta...@vger.kernel.org
Signed-off-by: Max Filippov
---
arch/xtensa/mm/cache.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index 5835406b3cec..085b8c77b9d9 100644
--- a/arch/xtensa/mm/cache.c
Hello,
this series changes TLBTEMP region placement and disables preemption
around all cache alias management calls. This fixes TLB miss and
multihit issues in the TLBTEMP area seen on cores with aliasing cache.
Max Filippov (2):
xtensa: fix TLBTEMP area placement
xtensa: disable preemption
/0x3c0
kthread+0x10d/0x124
ret_from_kernel_thread+0xc/0x18
Cc: sta...@vger.kernel.org
Signed-off-by: Max Filippov
---
Documentation/xtensa/mmu.rst | 9 ++---
arch/xtensa/include/asm/pgtable.h | 2 +-
2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/Documentation/xtensa
On Fri, Nov 13, 2020 at 6:36 AM Thomas Gleixner wrote:
> On Fri, Nov 13 2020 at 05:50, Max Filippov wrote:
> > On Fri, Nov 13, 2020 at 5:40 AM Thomas Gleixner wrote:
> >> What's wrong with just doing the obvious and making the fixmap defines
> >> the other way round
Hi Thomas,
On Fri, Nov 13, 2020 at 5:40 AM Thomas Gleixner wrote:
> On Fri, Nov 13 2020 at 04:23, Max Filippov wrote:
> > Fixmap on xtensa grows upwards, i.e. bigger fixmap entry index
> > corresponds to a higher virtual address. This was lost in highmem
> > gen
primitives differently depending on
whether it is defined or not.
Cc: Thomas Gleixner
Fixes: 629ed3f7dad2 ("xtensa/mm/highmem: Switch to generic kmap atomic")
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/fixmap.h | 2 ++
mm/highmem.c
On Wed, Nov 11, 2020 at 1:05 PM Jens Axboe wrote:
>
> On 11/11/20 1:53 PM, Max Filippov wrote:
> > TIF_NOTIFY_SIGNAL handling in xtensa assembly is implemented
> > incorrectly: there should be a call to do_notify_resume when either
> > TIF_SIGPENDING, TIF_NOTIFY_RESUME
opcode.
Fixes: 4c6a9dcd4d13 ("xtensa: add support for TIF_NOTIFY_SIGNAL")
Cc: Jens Axboe
Signed-off-by: Max Filippov
---
Changes v1->v2:
- use more canonical order of bnone arguments: tested value first,
bit mask second.
arch/xtensa/include/asm/thread_info.h | 7 ---
arch/
opcode.
Fixes: 4c6a9dcd4d13 ("xtensa: add support for TIF_NOTIFY_SIGNAL")
Cc: Jens Axboe
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/thread_info.h | 7 ---
arch/xtensa/kernel/entry.S| 5 ++---
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/a
On Sat, Oct 31, 2020 at 10:16 AM Mike Rapoport wrote:
>
> On Sat, Oct 31, 2020 at 09:37:09AM -0700, Max Filippov wrote:
> > On Sat, Oct 31, 2020 at 2:43 AM Mike Rapoport wrote:
> > > Please let me know how do you prefer to take it upstream.
> > > If needed
On Sat, Oct 31, 2020 at 2:43 AM Mike Rapoport wrote:
> Please let me know how do you prefer to take it upstream.
> If needed this can go via memblock tree.
Going through the memblock tree sounds right to me.
--
Thanks.
-- Max
simple, we just flush stdout & stderr before fork. Usually
> stderr is unbuffered, but that can be changed, so flush it as well
> just to be safe.
>
> Signed-off-by: Michael Ellerman
> ---
> tools/testing/selftests/kselftest_harness.h | 5 +
> 1 file changed, 5 insertions(+)
Tested-by: Max Filippov
--
Thanks.
-- Max
On Mon, Sep 14, 2020 at 1:32 PM Kees Cook wrote:
> On Mon, Sep 14, 2020 at 10:15:18PM +1000, Michael Ellerman wrote:
> > Kees Cook writes:
> However...
>
> >
> > cheers
> >
> >
> > ./seccomp_bpf
> > TAP version 13
> > 1..86
> > # Starting 86 tests from 7 test cases.
> > # RUN
Hello,
On Sat, Sep 12, 2020 at 4:08 AM Kees Cook wrote:
> This refactors the seccomp selftest macros used in change_syscall(),
> in an effort to remove special cases for mips, arm, arm64, and xtensa,
> which paves the way for powerpc fixes.
>
> I'm not entirely done testing, but all-arch build
On Fri, Sep 11, 2020 at 12:38 PM Kees Cook wrote:
> On Sat, Jul 18, 2020 at 07:16:51PM -0700, Max Filippov wrote:
> > Hello,
> >
> > this series adds support for seccomp filter on xtensa and updates
> > selftests/seccomp.
>
> Hi!
>
> Firstly, thanks for addi
On Thu, Sep 3, 2020 at 12:01 AM Alex Shi wrote:
>
> Armv6, sh2, sparc32 and xtensa can not do cmpxchg1, so we have to use
> cmpxchg4 on it.
[...]
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig> index
> e00d94b16658..03a6c7fd999d 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@
On Tue, Sep 1, 2020 at 7:17 AM Nicholas Piggin wrote:
>
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-xte...@linux-xtensa.org
> Signed-off-by: Nicholas Piggin
> ---
>
> Please ack or nack if you object to this being mered via
> Arnd's tree.
>
> arch/xtensa
On Sat, Aug 29, 2020 at 10:57 PM Randy Dunlap wrote:
>
> From: Randy Dunlap
>
> Correct trivial typo (ful -> full).
>
> Fixes: 76743c0e0915 ("xtensa: move kernel memory layout to platform options")
> Signed-off-by: Randy Dunlap
> Cc: Chris Zankel
> Cc
data segment last few instructions in the text
segment may get corrupted by the data segment pointer.
Fix it by reverting commit a2357223c50a ("binfmt_flat: don't offset the
data start").
Cc: sta...@vger.kernel.org
Fixes: a2357223c50a ("binfmt_flat: don't offset the data start"
Yamada (1):
xtensa: add boot subdirectories build artifacts to 'targets'
Max Filippov (8):
xtensa: add audit support
xtensa: expose syscall through user_pt_regs
xtensa: add seccomp support
selftests/seccomp: add xtensa support
xtensa: move vmlinux.bin[.gz] to boot
| 6 ++
> arch/nds32/include/asm/ptrace.h | 7 +++
> arch/xtensa/include/asm/ptrace.h | 6 ++
> 4 files changed, 25 insertions(+)
For xtensa:
Acked-by: Max Filippov
--
Thanks.
-- Max
thread_info and use getex to swap
ATOMCTL bit 8 as a part of context switch.
Clear exclusive access monitor on kernel entry.
Cc: sta...@vger.kernel.org
Fixes: f7c34874f04a ("xtensa: add exclusive atomics support")
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/thread_info.h | 4
nvert the hotplug notifier to state
machine callbacks")
Signed-off-by: Max Filippov
---
arch/xtensa/kernel/perf_event.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/xtensa/kernel/perf_event.c b/arch/xtensa/kernel/perf_event.c
index 99fcd63ce597..a0d05c8598d0 100644
-
> arch/xtensa/mm/init.c | 55 ---
> 2 files changed, 18 insertions(+), 85 deletions(-)
For the xtensa part:
Reviewed-by: Max Filippov
Tested-by: Max Filippov
--
Thanks.
-- Max
d-by: Mike Rapoport
Fixes: 8f74afa22d9b ("xtensa: switch to generic version of pte allocation")
Signed-off-by: Max Filippov
---
Andrew, could you please take this patch as the change that it fixes is
currently in the mm tree?
arch/xtensa/include/asm/pgalloc.h | 2 +-
1 file changed, 1 inse
-
> 2 files changed, 19 insertions(+), 68 deletions(-)
Reviewed-by: Max Filippov
Tested-by: Max Filippov
--
Thanks.
-- Max
vmlinux.bin and vmlinux.bin.gz are always rebuilt in the kernel build
process. Add them to 'targets' and move them to the boot subdirectory
where their rules are. Update make rules that refer to them.
Signed-off-by: Max Filippov
---
arch/xtensa/boot/Makefile | 11 ++-
arch
Hello,
this small clean up in the xtensa boot subdirectory adds more targets to
the 'targets' variable to avoid unnecessary rebuils.
Max Filippov (2):
xtensa: move vmlinux.bin[.gz] to boot subdirectory
xtensa: add uImage and xipImage to targets
arch/xtensa/boot/Makefile | 12
uImage and xipImage are always rebuilt in the xtensa kernel build
process. Add them to 'targets' to avoid that.
Signed-off-by: Max Filippov
---
arch/xtensa/boot/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile
index 801fe30b4dfe
On Tue, Jul 21, 2020 at 5:53 PM Masahiro Yamada wrote:
> On Tue, Jul 21, 2020 at 6:37 PM Max Filippov wrote:
> > The commit 8fe87a92f262 ("kbuild: always create directories of targets")
> > exposed an issue in the xtensa makefiles that results in the following
&
+
> arch/xtensa/boot/boot-redboot/Makefile | 1 +
> 2 files changed, 2 insertions(+)
Acked-by: Max Filippov
--
Thanks.
-- Max
On Tue, Jul 21, 2020 at 4:04 PM Al Viro wrote:
>
> On Tue, Jul 21, 2020 at 03:00:35PM -0700, Max Filippov wrote:
> > Commit d341659f470b ("xtensa: switch to providing
> > csum_and_copy_from_user()") introduced access check, but incorrectly
> > tested dst instead
user()")
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/checksum.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/xtensa/include/asm/checksum.h
b/arch/xtensa/include/asm/checksum.h
index d8292cc9ebdf..243a5fe79d3c 100644
--- a/arch/xtensa/include/asm/checksum
On Tue, Jul 21, 2020 at 2:00 PM Randy Dunlap wrote:
>
> Change "The the" to "For the".
>
> Signed-off-by: Randy Dunlap
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-xte...@linux-xtensa.org
> ---
> arch/xtensa/include/asm/initialize_mmu.h
es of
arch/xtensa/boot.
Cc: Masahiro Yamada
Signed-off-by: Max Filippov
---
Changes v1->v2:
- update boot-redboot/Makefile in the same manner as boot-elf/Makefile.
arch/xtensa/boot/boot-elf/Makefile | 1 +
arch/xtensa/boot/boot-redboot/Makefile | 1 +
2 files changed, 2 insertions(+
iro Yamada
Signed-off-by: Max Filippov
---
arch/xtensa/boot/boot-elf/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/xtensa/boot/boot-elf/Makefile
b/arch/xtensa/boot/boot-elf/Makefile
index a62a25506536..eb952d809d81 100644
--- a/arch/xtensa/boot/boot-elf/Makefile
+++ b/arch/xtensa
74afa22d9b ("xtensa: switch to generic version of pte allocation")
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/pgalloc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/xtensa/include/asm/pgalloc.h
b/arch/xtensa/include/asm/pgalloc.h
index 699a8fdf9005.
Hello,
this series adds support for seccomp filter on xtensa and updates
selftests/seccomp.
Max Filippov (3):
xtensa: expose syscall through user_pt_regs
xtensa: add seccomp support
selftests/seccomp: add xtensa support
.../seccomp/seccomp-filter/arch-support.txt | 2 +-
arch
Xtensa returns syscall number can be obtained and changed through the
struct user_pt_regs. Syscall return value register is fixed relatively
to the current register window in the user_pt_regs, so it needs a bit of
special treatment.
Signed-off-by: Max Filippov
---
tools/testing/selftests
Add SECCOMP to xtensa Kconfig, select HAVE_ARCH_SECCOMP_FILTER, add
TIF_SECCOMP and call secure_computing from do_syscall_trace_enter.
Signed-off-by: Max Filippov
---
.../seccomp/seccomp-filter/arch-support.txt | 2 +-
arch/xtensa/Kconfig | 15
Use one of the reserved slots in struct user_pt_regs to return syscall
number in the GPR regset. Update syscall number from the GPR regset only
when it's non-zero.
Signed-off-by: Max Filippov
---
arch/xtensa/include/uapi/asm/ptrace.h | 3 ++-
arch/xtensa/kernel/ptrace.c | 4
2
All bits needed for syscall audit are present on xtensa. Add
audit_syscall_entry and audit_syscall_exit calls and select
HAVE_ARCH_AUDITSYSCALL in Kconfig.
Signed-off-by: Max Filippov
---
arch/xtensa/Kconfig | 1 +
arch/xtensa/include/asm/thread_info.h | 4 +++-
arch/xtensa
build warning
- update *pos in cpuinfo_op.next to avoid runtime warning
- use for_each_set_bit in xtensa_pmu_irq_handler instead of open-coding
it
Max Filippov (2):
xtensa: fix __sync_fetch_and_{and,or}_4 declarations
On Thu, Jul 9, 2020 at 12:37 PM kernel test robot wrote:
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> master
> head: 0bddd227f3dc55975e2b8dfa7fc6f959b062a2c7
> commit: 5e4417f921238b5acf101bfcd59a7b3463fb2dbd xtensa: reorganize vectors
> placement
> date:
On Tue, Jul 7, 2020 at 11:59 PM Xu Wang wrote:
>
> Using for_each_set_bit() to simplify the code.
>
> Signed-off-by: Xu Wang
> ---
> arch/xtensa/kernel/perf_event.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
Thanks! Applied to my xtensa tree with a slightly edited commit
On Wed, Jul 1, 2020 at 12:30 PM Masahiro Yamada wrote:
[...]
> diff --git a/arch/xtensa/boot/boot-elf/Makefile
> b/arch/xtensa/boot/boot-elf/Makefile
> index 12ae1e91cb75..c6538d3321b9 100644
> --- a/arch/xtensa/boot/boot-elf/Makefile
> +++ b/arch/xtensa/boot/boot-elf/Makefile
> @@ -25,7 +25,7
On Mon, Jun 15, 2020 at 3:23 PM Peter Xu wrote:
>
> Use the new mm_fault_accounting() helper for page fault accounting.
>
> Avoid doing page fault accounting multiple times if the page fault is retried.
>
> CC: Chris Zankel
> CC: Max Filippov
> CC: linux-xte...@linux
Make module_enable_ro() static again")
Signed-off-by: Max Filippov
---
kernel/module.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/module.c b/kernel/module.c
index bca993c5f1bc..a74a29001814 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2038,6 +2038,7 @@ static void modul
comments in entry.S
Chris Packham (1):
xtensa: Fix spelling/grammar in comment
Max Filippov (4):
xtensa: add missing __user annotations to __{get,put}_user_check
xtensa: fix type conversion in __get_user_size
xtensa
On Mon, May 25, 2020 at 4:04 PM Chris Packham
wrote:
>
> Change 'excpetion' to 'exception', 'handeled' to 'handled' and 'the the'
> to 'the'.
>
> Signed-off-by: Chris Packham
> ---
> arch/xtensa/kernel/entry.S | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Thanks, applied to my
: implicit declaration of function
‘flush_icache_user_range’
Move definition outside conditional compilation block.
Fixes: 134d96d05d30 ("xtensa: implement flush_icache_user_range")
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/cacheflush.h | 4 ++--
1 file changed, 2 insert
Error paths in __get_user_check and __get_user_size directly assing 0 to
the result. It causes the following sparse warnings:
sparse: warning: Using plain integer as NULL pointer
Convert 0 to the type pointed to by the user pointer before assigning it.
Signed-off-by: Max Filippov
---
arch
On Fri, May 22, 2020 at 2:58 PM Al Viro wrote:
>
> On Fri, May 22, 2020 at 02:41:50PM -0700, Max Filippov wrote:
> Useful test:
>
> void __user *f(void __user * __user *p)
> {
> void __user *q;
> (void)get_user(q, p);
> return q;
> }
I thin
Hello,
this series adds missing __user annotations to functions in
asm/uaccess.h. It fixes a bunch of sparse warnings for otherwise correct
code.
Max Filippov (3):
xtensa: add missing __user annotations to __{get,put}_user_check
xtensa: fix type conversion in __get_user_size
xtensa: add
: incorrect type in argument 1 (different address spaces)
sparse:expected void [noderef] *to
sparse:got long *__pu_addr
Add __user annotation to temporary pointer in __get_user_check and
__put_user_check.
Reported-by: kbuild test robot
Reported-by: Arnd Bergmann
Signed-off-by: Max Filippov
clear_user, strncpy_user, strnlen_user and their helpers operate on user
pointers, but don't have their arguments marked as __user.
Add __user annotation to userspace pointers of those functions.
Fix open-coded access check in the strnlen_user while at it.
Signed-off-by: Max Filippov
---
arch
the __typeof__ and
add indirection outside.
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/uaccess.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/xtensa/include/asm/uaccess.h
b/arch/xtensa/include/asm/uaccess.h
index 754a7c96b9da..445bb4cf3c28 100644
--- a/arch/xtensa
On Fri, May 1, 2020 at 2:19 AM Christoph Hellwig wrote:
>
> On Fri, May 01, 2020 at 02:02:19AM -0700, Max Filippov wrote:
> > Hi Christoph,
> >
> > On Fri, May 1, 2020 at 1:46 AM Christoph Hellwig wrote:
> > > any idea why xtensa uses PAGE_KERNEL_EXEC instead o
Hi Christoph,
On Fri, May 1, 2020 at 1:46 AM Christoph Hellwig wrote:
> any idea why xtensa uses PAGE_KERNEL_EXEC instead of PAGE_KERNEL
> for kmap_prot? Mapping all mapped highmem as executable seems rather
> dangerous.
I sure do: to allow instruction cache flushing when writing to high user
;
- fix warning about static EXPORT_SYMBOL from modpost;
- fix PCI IO ports mapping for the virt board;
- fix pasto in change_bit for exclusive access option.
Al Viro (1):
xtensa: fix {get,put}_user() for 64bit values
Max
Hi Christoph,
On Wed, Oct 16, 2019 at 12:08 AM Christoph Hellwig wrote:
> On Tue, Oct 15, 2019 at 02:25:26PM -0700, Max Filippov wrote:
> > Add trivial implementation for arch_dma_coherent_to_pfn.
> > This change enables communication with PCI ALSA devices through mmap
Add trivial implementation for arch_dma_coherent_to_pfn.
This change enables communication with PCI ALSA devices through mmapped
buffers.
Signed-off-by: Max Filippov
---
arch/xtensa/Kconfig | 1 +
arch/xtensa/kernel/pci-dma.c | 6 ++
2 files changed, 7 insertions(+)
diff --git
t;
> Switch the entry code over to use CONFIG_PREEMPTION. Add PREEMPT_RT
> output to die().
>
> Cc: Chris Zankel
> Cc: Max Filippov
> Cc: linux-xte...@linux-xtensa.org
> Signed-off-by: Thomas Gleixner
> [bigeasy: +traps.c]
> Signed-off-by: Sebastian Andrzej Siewior
&g
cases. This
may add at most 1 cycle to the fast path, but saves an instruction and
two padding bytes in the fixup section for each use of this macro and
works for both misaligned store and store exception.
Signed-off-by: Max Filippov
---
Changes v2->v3:
- rearrange result zero-initializat
ent constraint for error code
- rearrange result zero-initialization for error paths in __get_user_asm
Changes v1->v2:
- initialize result when access_ok check fails in __get_user_check
- initialize result in __get_user_asm for unaligned access
Al Viro (1):
xtensa: fix {get,put}_user() for 64bit value
it to v32, truncating it in process.
Current code, OTOH, reads 8 bytes of data and stores them at the
address of v32, stomping on the 4 bytes that follow v32 itself.
Signed-off-by: Al Viro
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/uaccess.h | 13 +++--
1 file changed, 11
of having it as both input and output.
Signed-off-by: Max Filippov
---
Changes v2->v3:
- fix assembly argument constraint for error code
arch/xtensa/include/asm/uaccess.h | 42 +++
1 file changed, 21 insertions(+), 21 deletions(-)
diff --git a/arch/xtensa/include/
__get_user_asm macro leaves result register uninitialized when alignment
check fails. Add 'insn' parameter to __check_align_{1,2,4} and pass an
instruction that initializes result register from __get_user_asm.
Signed-off-by: Max Filippov
---
arch/xtensa/include/asm/uaccess.h | 12
to (x) as it may not always
be integer-compatible now and issue warning even when it's going to be
optimized. Instead do (x) = 0; and call __get_user_bad separately.
Signed-off-by: Max Filippov
---
Changes v1->v2:
- initialize result when access_ok check fails in __get_user_check
arch/xte
hen access_ok check fails in __get_user_check
- initialize result in __get_user_asm for unaligned access
Al Viro (1):
xtensa: fix {get,put}_user() for 64bit values
Max Filippov (3):
xtensa: clean up assembly arguments in uaccess macros
xtensa: fix type conversion in __get_user_[no]check
xte
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