* [GIT PULL] parisc architecture updates for v5.18-rc1
@ 2022-03-21 17:13 Helge Deller
2022-03-21 20:10 ` Linus Torvalds
2022-03-21 20:12 ` pr-tracker-bot
0 siblings, 2 replies; 4+ messages in thread
From: Helge Deller @ 2022-03-21 17:13 UTC (permalink / raw)
To: Linus Torvalds, linux-kernel, linux-parisc, James Bottomley,
John David Anglin, Sven Schnelle
The following changes since commit ffb217a13a2eaf6d5bd974fc83036a53ca69f1e2:
Linux 5.17-rc7 (2022-03-06 14:28:31 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git tags/for-5.18/parisc-1
for you to fetch changes up to 53d862fac4a09b9c56cca0433fa9de5732fd05a1:
parisc: Fix invalidate/flush vmap routines (2022-03-21 13:30:54 +0100)
----------------------------------------------------------------
parisc architecture updates for kernel v5.18-rc1
- add vDSO support (allows us to use read-only stacks)
- many TLB and cache flush optimizations (by Dave Anglin)
- fix handling of probe non-access faults (by Dave Anglin)
- fix invalidate/flush vmap routines (by Dave Anglin)
- avoid using hardware single-step in kprobes
- enable ARCH_HAS_DEBUG_VM_PGTABLE
- many cleanups in unaligned handlers, e.g. rewrite of existing assembly code
- always use the self-extracting kernel feature
- big refacturing and code reductions regarding space-register usage in get_user() and put_user()
- add fillrect() support to stifb graphics driver
----------------------------------------------------------------
Helge Deller (18):
parisc: Add vDSO support
video/fbdev/stifb: Implement the stifb_fillrect() function
parisc: Always use the self-extracting kernel feature
parisc: Add defines for various space register
parisc: Use SR_USER and SR_KERNEL in get_user() and put_user()
parisc: Use constants to encode the space registers like SR_KERNEL
parisc: Reduce code size by optimizing get_current() function calls
parisc/unaligned: Use EFAULT fixup handler in unaligned handlers
parisc/unaligned: Rewrite inline assembly of emulate_ldh()
parisc/unaligned: Rewrite inline assembly of emulate_ldw()
parisc/unaligned: Rewrite 32-bit inline assembly of emulate_ldd()
parisc/unaligned: Rewrite 32-bit inline assembly of emulate_sth()
parisc/unaligned: Enhance user-space visible output
parisc: Avoid calling SMP cache flush functions on cache-less machines
parisc: Enable ARCH_HAS_DEBUG_VM_PGTABLE
parisc: Improve CPU socket and core bootup info text
parisc: Avoid using hardware single-step in kprobes
parisc: Avoid flushing cache on cache-less machines
John David Anglin (5):
parisc: Fix non-access data TLB cache flush faults
parisc: Fix handling off probe non-access faults
parisc: Simplify fast path for non-access data TLB faults
parisc: Increase parisc_cache_flush_threshold setting
parisc: Fix invalidate/flush vmap routines
arch/parisc/Kconfig | 14 +-
arch/parisc/Makefile | 37 +++-
arch/parisc/include/asm/assembly.h | 6 +
arch/parisc/include/asm/cache.h | 11 +-
arch/parisc/include/asm/cacheflush.h | 15 +-
arch/parisc/include/asm/current.h | 8 +-
arch/parisc/include/asm/elf.h | 15 ++
arch/parisc/include/asm/kprobes.h | 5 +-
arch/parisc/include/asm/mmu.h | 6 +-
arch/parisc/include/asm/mmu_context.h | 16 +-
arch/parisc/include/asm/pgtable.h | 11 +-
arch/parisc/include/asm/processor.h | 2 +-
arch/parisc/include/asm/rt_sigframe.h | 10 +-
arch/parisc/include/asm/special_insns.h | 4 +-
arch/parisc/include/asm/tlbflush.h | 2 +-
arch/parisc/include/asm/traps.h | 1 +
arch/parisc/include/asm/uaccess.h | 28 +--
arch/parisc/include/asm/unistd.h | 4 -
arch/parisc/include/asm/vdso.h | 24 +++
arch/parisc/include/uapi/asm/auxvec.h | 8 +
arch/parisc/kernel/Makefile | 5 +
arch/parisc/kernel/alternative.c | 10 +
arch/parisc/kernel/asm-offsets.c | 9 +
arch/parisc/kernel/cache.c | 137 +++++++-------
arch/parisc/kernel/entry.S | 72 +-------
arch/parisc/kernel/kprobes.c | 28 +--
arch/parisc/kernel/pci-dma.c | 4 +-
arch/parisc/kernel/signal.c | 225 +++++++++++-----------
arch/parisc/kernel/signal32.h | 19 +-
arch/parisc/kernel/topology.c | 4 +-
arch/parisc/kernel/traps.c | 12 +-
arch/parisc/kernel/unaligned.c | 257 ++++++++++----------------
arch/parisc/kernel/vdso.c | 122 ++++++++++++
arch/parisc/kernel/vdso32/Makefile | 53 ++++++
arch/parisc/kernel/vdso32/gen_vdso_offsets.sh | 15 ++
arch/parisc/kernel/vdso32/note.S | 26 +++
arch/parisc/kernel/vdso32/restart_syscall.S | 32 ++++
arch/parisc/kernel/vdso32/sigtramp.S | 195 +++++++++++++++++++
arch/parisc/kernel/vdso32/vdso32.lds.S | 111 +++++++++++
arch/parisc/kernel/vdso32/vdso32_wrapper.S | 14 ++
arch/parisc/kernel/vdso64/Makefile | 48 +++++
arch/parisc/kernel/vdso64/gen_vdso_offsets.sh | 15 ++
arch/parisc/kernel/vdso64/note.S | 2 +
arch/parisc/kernel/vdso64/restart_syscall.S | 3 +
arch/parisc/kernel/vdso64/sigtramp.S | 166 +++++++++++++++++
arch/parisc/kernel/vdso64/vdso64.lds.S | 109 +++++++++++
arch/parisc/kernel/vdso64/vdso64_wrapper.S | 14 ++
arch/parisc/lib/memcpy.c | 16 +-
arch/parisc/mm/fault.c | 89 +++++++++
drivers/video/fbdev/stifb.c | 45 ++++-
50 files changed, 1534 insertions(+), 550 deletions(-)
create mode 100644 arch/parisc/include/asm/vdso.h
create mode 100644 arch/parisc/include/uapi/asm/auxvec.h
create mode 100644 arch/parisc/kernel/vdso.c
create mode 100644 arch/parisc/kernel/vdso32/Makefile
create mode 100755 arch/parisc/kernel/vdso32/gen_vdso_offsets.sh
create mode 100644 arch/parisc/kernel/vdso32/note.S
create mode 100644 arch/parisc/kernel/vdso32/restart_syscall.S
create mode 100644 arch/parisc/kernel/vdso32/sigtramp.S
create mode 100644 arch/parisc/kernel/vdso32/vdso32.lds.S
create mode 100644 arch/parisc/kernel/vdso32/vdso32_wrapper.S
create mode 100644 arch/parisc/kernel/vdso64/Makefile
create mode 100755 arch/parisc/kernel/vdso64/gen_vdso_offsets.sh
create mode 100644 arch/parisc/kernel/vdso64/note.S
create mode 100644 arch/parisc/kernel/vdso64/restart_syscall.S
create mode 100644 arch/parisc/kernel/vdso64/sigtramp.S
create mode 100644 arch/parisc/kernel/vdso64/vdso64.lds.S
create mode 100644 arch/parisc/kernel/vdso64/vdso64_wrapper.S
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] parisc architecture updates for v5.18-rc1
2022-03-21 17:13 [GIT PULL] parisc architecture updates for v5.18-rc1 Helge Deller
@ 2022-03-21 20:10 ` Linus Torvalds
2022-03-21 20:17 ` Helge Deller
2022-03-21 20:12 ` pr-tracker-bot
1 sibling, 1 reply; 4+ messages in thread
From: Linus Torvalds @ 2022-03-21 20:10 UTC (permalink / raw)
To: Helge Deller
Cc: Linux Kernel Mailing List, linux-parisc, James Bottomley,
John David Anglin, Sven Schnelle
On Mon, Mar 21, 2022 at 10:13 AM Helge Deller <deller@gmx.de> wrote:
>
> parisc architecture updates for kernel v5.18-rc1
>
> - add vDSO support (allows us to use read-only stacks)
[...]
I was all "WTF?".
Then I checked the code.
You mean non-executable, not read-only.
Fixed up in the merge message.
Linus
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] parisc architecture updates for v5.18-rc1
2022-03-21 17:13 [GIT PULL] parisc architecture updates for v5.18-rc1 Helge Deller
2022-03-21 20:10 ` Linus Torvalds
@ 2022-03-21 20:12 ` pr-tracker-bot
1 sibling, 0 replies; 4+ messages in thread
From: pr-tracker-bot @ 2022-03-21 20:12 UTC (permalink / raw)
To: Helge Deller
Cc: Linus Torvalds, linux-kernel, linux-parisc, James Bottomley,
John David Anglin, Sven Schnelle
The pull request you sent on Mon, 21 Mar 2022 18:13:28 +0100:
> git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git tags/for-5.18/parisc-1
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/a04b1bf574e1f4875ea91f5c62ca051666443200
Thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [GIT PULL] parisc architecture updates for v5.18-rc1
2022-03-21 20:10 ` Linus Torvalds
@ 2022-03-21 20:17 ` Helge Deller
0 siblings, 0 replies; 4+ messages in thread
From: Helge Deller @ 2022-03-21 20:17 UTC (permalink / raw)
To: Linus Torvalds
Cc: Linux Kernel Mailing List, linux-parisc, James Bottomley,
John David Anglin, Sven Schnelle
On 3/21/22 21:10, Linus Torvalds wrote:
> On Mon, Mar 21, 2022 at 10:13 AM Helge Deller <deller@gmx.de> wrote:
>>
>> parisc architecture updates for kernel v5.18-rc1
>>
>> - add vDSO support (allows us to use read-only stacks)
> [...]
>
> I was all "WTF?".
>
> Then I checked the code.
>
> You mean non-executable, not read-only.
Hmpf, Yes :-)
> Fixed up in the merge message.
Thanks!
Helge
^ permalink raw reply [flat|nested] 4+ messages in thread
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2022-03-21 17:13 [GIT PULL] parisc architecture updates for v5.18-rc1 Helge Deller
2022-03-21 20:10 ` Linus Torvalds
2022-03-21 20:17 ` Helge Deller
2022-03-21 20:12 ` pr-tracker-bot
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