History log of /openbmc/linux/arch/arm/vfp/vfphw.S (Results 26 – 50 of 515)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
# 90223c11 18-May-2023 Jakub Kicinski <kuba@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Conflicts:

drivers/net/ethernet/freescale/fec_main.c
6ead9c98cafc ("net: fec: remove the xdp_return_frame when lack of tx BDs")
14

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Conflicts:

drivers/net/ethernet/freescale/fec_main.c
6ead9c98cafc ("net: fec: remove the xdp_return_frame when lack of tx BDs")
144470c88c5d ("net: fec: using the standard return codes when xdp xmit errors")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...


# 8c1688e8 18-May-2023 Mauro Carvalho Chehab <mchehab@kernel.org>

Merge tag 'v6.4-rc2' into v4l_for_linus

Linux 6.4-rc2

* tag 'v6.4-rc2': (162 commits)
Linux 6.4-rc2
parisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
ext4: bail out of ext4_xa

Merge tag 'v6.4-rc2' into v4l_for_linus

Linux 6.4-rc2

* tag 'v6.4-rc2': (162 commits)
Linux 6.4-rc2
parisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
ext4: bail out of ext4_xattr_ibody_get() fails for any reason
ext4: add bounds checking in get_max_inline_xattr_value_size()
ext4: add indication of ro vs r/w mounts in the mount message
ext4: fix deadlock when converting an inline directory in nojournal mode
ext4: improve error recovery code paths in __ext4_remount()
ext4: improve error handling from ext4_dirhash()
ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled
ext4: check iomap type only if ext4_iomap_begin() does not fail
ext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum
ext4: fix data races when using cached status extents
ext4: avoid deadlock in fs reclaim with page writeback
ext4: fix invalid free tracking in ext4_xattr_move_to_block()
ext4: remove a BUG_ON in ext4_mb_release_group_pa()
ext4: allow ext4_get_group_info() to fail
cxl: Add missing return to cdat read error path
tools/testing/cxl: Use DEFINE_STATIC_SRCU()
x86/retbleed: Fix return thunk alignment
Documentation/block: drop the request.rst file
...

show more ...


# 9c3a985f 17-May-2023 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Backmerge to get some hwmon dependencies.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


Revision tags: v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20
# 4708fb04 15-Mar-2023 Ard Biesheuvel <ardb@kernel.org>

ARM: vfp: Reimplement VFP exception entry in C code

En/disabling softirqs from asm code turned out to be trickier than
expected, so vfp_support_entry now returns by tail calling
__local_enable_bh_ip

ARM: vfp: Reimplement VFP exception entry in C code

En/disabling softirqs from asm code turned out to be trickier than
expected, so vfp_support_entry now returns by tail calling
__local_enable_bh_ip() and passing the same arguments that a C call to
local_bh_enable() would pass. However, this is slightly hacky, as we
don't want to carry our own implementation of local_bh_enable().

So let's bite the bullet, and get rid of the asm logic in
vfp_support_entry that reasons about whether or not to save and/or
reload the VFP state, and about whether or not an FP exception is
pending, and only keep the VFP loading logic as a function that is
callable from C.

Replicate the removed logic in vfp_entry(), and use the exact same
reasoning as in the asm code. To emphasize the correspondence, retain
some of the asm comments in the C version as well.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

show more ...


# 4a0548c6 20-Mar-2023 Ard Biesheuvel <ardb@kernel.org>

ARM: vfp: Remove workaround for Feroceon CPUs

Feroceon CPUs have a non-standard implementation of VFP which reports
synchronous VFP exceptions using the async VFP flag. This requires a
workaround wh

ARM: vfp: Remove workaround for Feroceon CPUs

Feroceon CPUs have a non-standard implementation of VFP which reports
synchronous VFP exceptions using the async VFP flag. This requires a
workaround which is difficult to reconcile with other implementations,
making it tricky to support both versions in a single image.

Since this is a v5 CPU, it is not supported by armhf and so the
likelihood that anybody is using this with recent distros/kernels and
rely on the VFP at the same time is extremely low. So let's just disable
VFP support on these cores, so we can remove the workaround.

This will help future development to support v5 and v6 CPUs with a
single kernel image.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

show more ...


# a23a3041 14-May-2023 Mauro Carvalho Chehab <mchehab@kernel.org>

Merge tag 'v6.4-rc2' into media_stage

Linux 6.4-rc2

* tag 'v6.4-rc2': (162 commits)
Linux 6.4-rc2
parisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
ext4: bail out of ext4_xatt

Merge tag 'v6.4-rc2' into media_stage

Linux 6.4-rc2

* tag 'v6.4-rc2': (162 commits)
Linux 6.4-rc2
parisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
ext4: bail out of ext4_xattr_ibody_get() fails for any reason
ext4: add bounds checking in get_max_inline_xattr_value_size()
ext4: add indication of ro vs r/w mounts in the mount message
ext4: fix deadlock when converting an inline directory in nojournal mode
ext4: improve error recovery code paths in __ext4_remount()
ext4: improve error handling from ext4_dirhash()
ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled
ext4: check iomap type only if ext4_iomap_begin() does not fail
ext4: avoid a potential slab-out-of-bounds in ext4_group_desc_csum
ext4: fix data races when using cached status extents
ext4: avoid deadlock in fs reclaim with page writeback
ext4: fix invalid free tracking in ext4_xattr_move_to_block()
ext4: remove a BUG_ON in ext4_mb_release_group_pa()
ext4: allow ext4_get_group_info() to fail
cxl: Add missing return to cdat read error path
tools/testing/cxl: Use DEFINE_STATIC_SRCU()
x86/retbleed: Fix return thunk alignment
Documentation/block: drop the request.rst file
...

show more ...


# 01bc9325 14-May-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:

- fix unwinder for uleb128 case

- fix kernel-doc warnings for HP Jornada 7xx

- fix unbalance

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:

- fix unwinder for uleb128 case

- fix kernel-doc warnings for HP Jornada 7xx

- fix unbalanced stack on vfp success path

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9297/1: vfp: avoid unbalanced stack on 'success' return path
ARM: 9296/1: HP Jornada 7XX: fix kernel-doc warnings
ARM: 9295/1: unwind:fix unwind abort for uleb128 case

show more ...


# 50282fd5 12-May-2023 Maxime Ripard <maxime@cerno.tech>

Merge drm/drm-fixes into drm-misc-fixes

Let's bring 6.4-rc1 in drm-misc-fixes to start the new fix cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>


# 2b951b0e 08-May-2023 Ard Biesheuvel <ardb@kernel.org>

ARM: 9297/1: vfp: avoid unbalanced stack on 'success' return path

Commit c76c6c4ecbec0deb5 ("ARM: 9294/2: vfp: Fix broken softirq handling
with instrumentation enabled") updated the VFP exception en

ARM: 9297/1: vfp: avoid unbalanced stack on 'success' return path

Commit c76c6c4ecbec0deb5 ("ARM: 9294/2: vfp: Fix broken softirq handling
with instrumentation enabled") updated the VFP exception entry logic to
go via a C function, so that we get the compiler's version of
local_bh_disable(), which may be instrumented, and isn't generally
callable from assembler.

However, this assumes that passing an alternative 'success' return
address works in C as it does in asm, and this is only the case if the C
calls in question are tail calls, as otherwise, the stack will need some
unwinding as well.

I have already sent patches to the list that replace most of the asm
logic with C code, and so it is preferable to have a minimal fix that
addresses the issue and can be backported along with the commit that it

fixes to v6.3 from v6.4. Hopefully, we can land the C conversion for v6.5.

So instead of passing the 'success' return address as a function
argument, pass the stack address from where to pop it so that both LR
and SP have the expected value.

Fixes: c76c6c4ecbec0deb5 ("ARM: 9294/2: vfp: Fix broken softirq handling with ...")
Reported-by: syzbot+d4b00edc2d0c910d4bf4@syzkaller.appspotmail.com
Tested-by: syzbot+d4b00edc2d0c910d4bf4@syzkaller.appspotmail.com
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

show more ...


# ff32fcca 09-May-2023 Maxime Ripard <maxime@cerno.tech>

Merge drm/drm-next into drm-misc-next

Start the 6.5 release cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>


# 9a87ffc9 01-May-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.4 merge window.


# d88867a2 24-Apr-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM development updates from Russell King:
"Four changes for v6.4:

- simplify the path to the top vmlinux

- three patc

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM development updates from Russell King:
"Four changes for v6.4:

- simplify the path to the top vmlinux

- three patches to fix vfp with instrumentation enabled (eg lockdep)"

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9294/2: vfp: Fix broken softirq handling with instrumentation enabled
ARM: 9293/1: vfp: Pass successful return address via register R3
ARM: 9292/1: vfp: Pass thread_info pointer to vfp_support_entry
ARM: 9291/1: decompressor: simplify the path to the top vmlinux

show more ...


# 60261442 12-Apr-2023 Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

Merge branches 'misc' and 'fixes' into for-next


# c76c6c4e 12-Apr-2023 Ard Biesheuvel <ardb@kernel.org>

ARM: 9294/2: vfp: Fix broken softirq handling with instrumentation enabled

Commit 62b95a7b44d1 ("ARM: 9282/1: vfp: Manipulate task VFP state with
softirqs disabled") replaced the en/disable preempti

ARM: 9294/2: vfp: Fix broken softirq handling with instrumentation enabled

Commit 62b95a7b44d1 ("ARM: 9282/1: vfp: Manipulate task VFP state with
softirqs disabled") replaced the en/disable preemption calls inside the
VFP state handling code with en/disabling of soft IRQs, which is
necessary to allow kernel use of the VFP/SIMD unit when handling a soft
IRQ.

Unfortunately, when lockdep is enabled (or other instrumentation that
enables TRACE_IRQFLAGS), the disable path implemented in asm fails to
perform the lockdep and RCU related bookkeeping, resulting in spurious
warnings and other badness.

Set let's rework the VFP entry code a little bit so we can make the
local_bh_disable() call from C, with all the instrumentations that
happen to have been configured. Calling local_bh_enable() can be done
from asm, as it is a simple wrapper around __local_bh_enable_ip(), which
is always a callable function.

Link: https://lore.kernel.org/all/ZBBYCSZUJOWBg1s8@localhost.localdomain/

Fixes: 62b95a7b44d1 ("ARM: 9282/1: vfp: Manipulate task VFP state with softirqs disabled")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

show more ...


# ea68a3e9 11-Apr-2023 Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge drm/drm-next into drm-intel-gt-next

Need to pull in commit from drm-next (earlier in drm-intel-next):

1eca0778f4b3 ("drm/i915: add struct i915_dsm to wrap dsm members together")

In order to

Merge drm/drm-next into drm-intel-gt-next

Need to pull in commit from drm-next (earlier in drm-intel-next):

1eca0778f4b3 ("drm/i915: add struct i915_dsm to wrap dsm members together")

In order to merge following patch to drm-intel-gt-next:

https://patchwork.freedesktop.org/patch/530942/?series=114925&rev=6

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

show more ...


# 3a2bdad0 21-Mar-2023 Ard Biesheuvel <ardb@kernel.org>

ARM: 9293/1: vfp: Pass successful return address via register R3

In preparation for reimplementing the do_vfp()->vfp_support_entry()
handover in C code, switch to using R3 to pass the 'success' retu

ARM: 9293/1: vfp: Pass successful return address via register R3

In preparation for reimplementing the do_vfp()->vfp_support_entry()
handover in C code, switch to using R3 to pass the 'success' return
address, rather than R9, as it cannot be used for parameter passing.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

show more ...


# dae904d9 21-Mar-2023 Ard Biesheuvel <ardb@kernel.org>

ARM: 9292/1: vfp: Pass thread_info pointer to vfp_support_entry

Instead of dereferencing thread_info in do_vfp, pass the thread_info
pointer to vfp_support_entry via R1. That way, we only use a sing

ARM: 9292/1: vfp: Pass thread_info pointer to vfp_support_entry

Instead of dereferencing thread_info in do_vfp, pass the thread_info
pointer to vfp_support_entry via R1. That way, we only use a single
caller save register, which makes it easier to convert do_vfp to C code
in a subsequent patch.

Note that, unlike the CPU number, which can change due to preemption,
passing the thread_info pointer can safely be done with preemption
enabled.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

show more ...


# cecdd52a 28-Mar-2023 Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-intel-next

Catch up with 6.3-rc cycle...

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>


# e752ab11 20-Mar-2023 Rob Clark <robdclark@chromium.org>

Merge remote-tracking branch 'drm/drm-next' into msm-next

Merge drm-next into msm-next to pick up external clk and PM dependencies
for improved a6xx GPU reset sequence.

Signed-off-by: Rob Clark <ro

Merge remote-tracking branch 'drm/drm-next' into msm-next

Merge drm-next into msm-next to pick up external clk and PM dependencies
for improved a6xx GPU reset sequence.

Signed-off-by: Rob Clark <robdclark@chromium.org>

show more ...


# d26a3a6c 17-Mar-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v6.3-rc2' into next

Merge with mainline to get of_property_present() and other newer APIs.


Revision tags: v6.1.19
# b3c9a041 13-Mar-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Backmerging to get latest upstream.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# a1eccc57 13-Mar-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.3-rc1 and sync with the other DRM trees.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.1.18, v6.1.17
# b8fa3e38 10-Mar-2023 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'acme/perf-tools' into perf-tools-next

To pick up perf-tools fixes just merged upstream.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>


Revision tags: v6.1.16, v6.1.15, v6.1.14
# 585a78c1 23-Feb-2023 Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into objtool/core, to pick up Xen dependencies

Pick up dependencies - freshly merged upstream via xen-next - before applying
dependent objtool changes.

Signed-off-by: Ingo Moln

Merge branch 'linus' into objtool/core, to pick up Xen dependencies

Pick up dependencies - freshly merged upstream via xen-next - before applying
dependent objtool changes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...


Revision tags: v6.1.13
# b327dfe0 21-Feb-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM udpates from Russell King:

- Improve Kconfig help text for Cortex A8 and Cortex A9 errata

- Kconfig spelling and gramma

Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM udpates from Russell King:

- Improve Kconfig help text for Cortex A8 and Cortex A9 errata

- Kconfig spelling and grammar fixes

- Allow kernel-mode VFP/Neon in softirq context

- Use Neon in softirq context

- Implement AES-CTR/GHASH version of GCM

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9289/1: Allow pre-ARMv5 builds with ld.lld 16.0.0 and newer
ARM: 9288/1: Kconfigs: fix spelling & grammar
ARM: 9286/1: crypto: Implement fused AES-CTR/GHASH version of GCM
ARM: 9285/1: remove meaningless arch/arm/mach-rda/Makefile
ARM: 9283/1: permit non-nested kernel mode NEON in softirq context
ARM: 9282/1: vfp: Manipulate task VFP state with softirqs disabled
ARM: 9281/1: improve Cortex A8/A9 errata help text

show more ...


12345678910>>...21