From: Thomas Gleixner
sysvec_spurious_apic_interrupt() calls into the handling body of
__spurious_interrupt() which is not obvious as that function is declared
inside the DEFINE_IDTENTRY_IRQ(spurious_interrupt) macro.
As __spurious_interrupt() is currently always inlined this ends up with two
From: Thomas Gleixner
Now that all invocations of irq_exit_rcu() happen on the irq stack, turn on
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK which causes the core code to invoke
__do_softirq() directly without going through do_softirq_own_stack().
That means do_softirq_own_stack() is only invoked from
From: Thomas Gleixner
Embracing a callout into instrumentation_begin() / instrumentation_begin()
does not really make sense. Make the latter instrumentation_end().
Fixes: 2f6474e4636b ("x86/entry: Switch XEN/PV hypercall entry to IDTENTRY")
Signed-off-by: Thomas Gleixner
Reviewed-by:
This is the second version of this series. V1 is available here:
https://lore.kernel.org/r/20210204204903.350275...@linutronix.de
The recent effort to make the ASM entry code slim and unified moved
the irq stack switching out of the low level ASM code so that the
whole return from interrupt wor
From: Thomas Gleixner
Convert device interrupts to inline stack switching by replacing the
existing macro implementation with the new inline version. Tweak the
function signature of the actual handler function to have the vector
argument as u32. That allows the inline macro to avoid extra
From: Thomas Gleixner
Use the new inline stack switching and remove the old ASM indirect call
implementation.
Signed-off-by: Thomas Gleixner
Reviewed-by: Kees Cook
---
arch/x86/entry/entry_64.S| 39 -
arch/x86/include/asm/irq_stack.h | 52
From: Thomas Gleixner
The effort to make the ASM entry code slim and unified moved the irq stack
switching out of the low level ASM code so that the whole return from
interrupt work and state handling can be done in C and the ASM code just
handles the low level details of entry and exit.
This
From: Thomas Gleixner
The per CPU hardirq_stack_ptr contains the pointer to the irq stack in the
form that it is ready to be assigned to [ER]SP so that the first push ends
up on the top entry of the stack.
But the stack switching on 64 bit has the following rules:
1) Store the current
From: Thomas Gleixner
The recursion protection for hard interrupt stacks is an unsigned int per
CPU variable initialized to -1 named __irq_count.
The irq stack switching is only done when the variable is -1, which creates
worse code than just checking for 0. When the stack switching happens it
Lai,
On Fri, Feb 05 2021 at 12:38, Thomas Gleixner wrote:
> On Fri, Feb 05 2021 at 18:14, Lai Jiangshan wrote:
>> On Fri, Feb 5, 2021 at 10:04 AM Thomas Gleixner wrote:
>>> static inline void do_softirq_own_stack(void)
>>> {
>>
>> Hello
>>
>>
On Tue, Feb 09 2021 at 10:22, Josh Poimboeuf wrote:
> On Tue, Feb 09, 2021 at 04:12:33PM +0100, Thomas Gleixner wrote:
>> On Mon, Feb 08 2021 at 14:42, Josh Poimboeuf wrote:
>> > On Thu, Feb 04, 2021 at 09:49:08PM +0100, Thomas Gleixner wrote:
>> >> #ifdef CONFI
return ((ip->u_format.uimmediate >> 6) & mm_jalr_op) == mm_jalr_op;
> > + return ((ip->u_format.uimmediate >> 6) & GENMASK(9, 0)) == mm_jalr_op;
>
> You've now excluded JALR.HB, JALRS, and JALRS.HB instructions. The mask
> was there for a reason
GSON_DTB = 1,
> +};
> +
> struct loongson_system_configuration {
> + enum loongson_fw_interface fw_interface;
do you need this for future use ? Right now this information is only
needed in init.c and doesn't need to be exported...
> + if (fw_arg2 == 0 || (be32_to_cpup((__be32 *)fw_ar
On Mon, Feb 08 2021 at 14:42, Josh Poimboeuf wrote:
> On Thu, Feb 04, 2021 at 09:49:08PM +0100, Thomas Gleixner wrote:
>> #ifdef CONFIG_X86_64
>> +
>> +#ifdef CONFIG_UNWINDER_FRAME_POINTER
>> +# define IRQSTACK_CALL_CONSTRAINT , ASM_CALL_CONSTR
On Tue, Feb 09, 2021 at 09:09:52PM +0800, Tiezhu Yang wrote:
> On 02/09/2021 08:11 PM, Thomas Bogendoerfer wrote:
> > On Tue, Feb 09, 2021 at 01:05:25PM +0800, Tiezhu Yang wrote:
> > > According to MIPS EJTAG Specification [1], a Debug Breakpoint
> > > exception occurs w
pr_info("Hardware DMA cache coherency disabled\n");
> return;
this hunk needs to be in patch 1, otherwise it's not compilable
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
{
> - return coherentio == IO_COHERENCE_ENABLED ||
> - (coherentio == IO_COHERENCE_DEFAULT && hw_coherentio);
> + return dma_default_coherent;
this breaks overriding of coherentio via command line. plat_mem_setup/
plat_setup_iocoherency is calle
le to exclude
> it from instrumentation scope and fix this issue.
>
> Fixes: 1e35918ad9d1 ("MIPS: Enable Undefined Behavior Sanitizer UBSAN")
> Cc: sta...@vger.kernel.org # 5.0+
> Signed-off-by: Alexander Lobakin
> ---
> arch/mips/boot/compressed/Makefile | 1 +
>
4: Add KASLR support")
> Reported-by: kernel test robot
> Signed-off-by: Jinyang He
> ---
> arch/mips/include/asm/page.h | 6 ++
> arch/mips/kernel/relocate.c | 10 ++
> arch/mips/kernel/setup.c | 3 +++
> 3 files changed, 19 insertions(+)
applied to mips-n
mp.c | 41 ++---
> 1 file changed, 6 insertions(+), 35 deletions(-)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
off-by: Jinyang He
> ---
> arch/mips/kernel/relocate.c | 8 ++--
> 1 file changed, 2 insertions(+), 6 deletions(-)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
t robot
> Signed-off-by: Jinyang He
> ---
> arch/mips/kernel/process.c | 2 ++
> 1 file changed, 2 insertions(+)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
IZE, sp)
> MTC0k0, CP0_DESAVE
> mfc0k0, CP0_DEBUG
>
> - sll k0, k0, 30 # Check for SDBBP.
> - bgezk0, ejtag_return
> + andik0, k0, MIPS_DEBUG_DBP # Check for SDBBP.
> + beqzk0, ejtag_return
IMHO bot
eing created twice bigger than implied.
>
> Fixes: a94e4f24ec83 ("MIPS: init: Drop boot_mem_map")
> Reported-by: Paul Cercueil
> Signed-off-by: Serge Semin
> ---
> arch/mips/kernel/setup.c | 3 ---
> 1 file changed, 3 deletions
Dear Friend,
I will be pleased if you can allow me to invest $104M Dollars in
Estate Management,in your company or any area you best that will be
of good profit to both of us
Please do well to respond including your information for more details.
Thanks.
Mr.Richard Thomas
return 0;
+}
+EXPORT_SYMBOL(drm_edp_backlight_set_level);
+
+static int
+drm_edp_backlight_set_enable(struct drm_dp_aux *aux, const struct
drm_edp_backlight_info *bl,
+bool enable)
+{
+ int ret;
+ u8 buf;
+
+ /* The panel uses something other then DPCD for e
On Fri, Feb 05 2021 at 23:23, Thomas Gleixner wrote:
> On Thu, Feb 04 2021 at 14:17, Nitesh Narayan Lal wrote:
>> On 2/4/21 2:06 PM, Marcelo Tosatti wrote:
>>>>> How about adding a new flag for isolcpus instead?
>>>>>
>>>> Do you mean a fla
eeping for all the devices at the time of IRQ distribution?
>> Yes a new flag for isolcpus. HK_FLAG_IRQ_SPREAD or some better name.
>
> Does sounds like a nice idea to explore, lets see what Thomas thinks about it.
I just read back up on that whole discussion and stared into the usage
sites a bi
The following commit has been merged into the sched/urgent branch of tip:
Commit-ID: 2452483d9546de1c540f330469dc4042ff089731
Gitweb:
https://git.kernel.org/tip/2452483d9546de1c540f330469dc4042ff089731
Author:Thomas Gleixner
AuthorDate:Fri, 05 Feb 2021 23:28:29 +01:00
On Thu, Jan 28 2021 at 15:02, Mikael Beckius wrote:
> During clock_settime absolute realtime timers may get updated to expire
> sooner in absolute monotonic time but if hrtimer_force_reprogram is
> called as part of a clock_settime and the next hard hrtimer expires
> before the next soft hrtimer s
39288 9978
drivers/gpu/drm/mgag200/mgag200_mode.o
After:
text data bss dechex filename
34625 4616 0 39241 9949
drivers/gpu/drm/mgag200/mgag200_mode.o
(gcc version 10.2.0)
Signed-off-by: Colin Ian King
Reviewed-by: Thomas Zimmermann
---
V2: move s
On Fri, Feb 05 2021 at 14:53, Peter Zijlstra wrote:
> On Thu, Feb 04, 2021 at 09:49:06PM +0100, Thomas Gleixner wrote:
>> Move the definition
>> next to the inuse flag so they end up in the same cache line.
>
>> -DEFINE_PER_CPU(struct irq_stack *, hardirq_stack_ptr);
On Fri, Jan 29 2021 at 09:35, Nitesh Narayan Lal wrote:
> On 1/29/21 9:23 AM, Marcelo Tosatti wrote:
>>> I am not sure about the PCI patch as I don't think we can control that from
>>> the userspace or maybe I am wrong?
>> You mean "lib: Restrict cpumask_local_spread to housekeeping CPUs" ?
>
> No,
On Wed, Jan 20 2021 at 10:51, Yejune Deng wrote:
> In pps_fill_timex(), use memset and offsetof instead of '= 0'.
>
> Signed-off-by: Yejune Deng
> ---
> kernel/time/ntp.c | 13 +
> 1 file changed, 5 insertions(+), 8 deletions(-)
>
> diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
>
Bhaskar,
On Fri, Feb 05 2021 at 17:58, Bhaskar Chowdhury wrote:
The correct prefix for this file is:
genirq/timings:
which you can find via: git log kernel/irq/timings.c
Also if you send a patch with spelling fixes then you might take care
that your subject line does not contain spelling mi
On Fri, Feb 05 2021 at 13:43, Peter Zijlstra wrote:
> On Fri, Feb 05, 2021 at 06:03:13PM +0800, Zhimin Feng wrote:
>> +static void vmx_adjust_tsc_offset(struct kvm_vcpu *vcpu, bool to_host)
>> +{
>> +u64 tsc_adjust;
>> +struct timer_passth_info *local_timer_info;
>> +
>> +local_timer_in
On Fri, Feb 05 2021 at 18:03, Zhimin Feng wrote:
> @@ -520,6 +521,24 @@ struct kvm_vcpu_hv {
> cpumask_t tlb_flush;
> };
>
> +enum tick_device_mode {
> + TICKDEV_MODE_PERIODIC,
> + TICKDEV_MODE_ONESHOT,
> +};
> +
> +struct tick_device {
> + struct clock_event_device *evtdev;
>
On Thu, Jan 07 2021 at 13:33, Li RongQing wrote:
> when an hrtimer is enqueued already, its expires should be not
> changed, otherwise, this will corrupts the ordering of the
> timerqueue RB tree, if other hrtimer is enqueued before this
> hrtimer is restarted, whole RB tree is completely hosed
>
>
Uros,
On Fri, Feb 05 2021 at 12:03, Uros Bizjak wrote:
can you please fix your mail client to generate at least the 'In-Reply-to:'
header? Lacking that header breaks threading on lore:
https://lore.kernel.org/lkml/20210204204903.350275...@linutronix.de/
Your mail is missing there. Ideal
On Thu, Feb 04 2021 at 16:11, Andy Lutomirski wrote:
> On Thu, Feb 4, 2021 at 6:26 AM Lai Jiangshan wrote:
>> When FSGSBASE is enabled, paranoid_entry() fetches the per-CPU
>> GSBASE value via __per_cpu_offset or pcpu_unit_offsets.
>>
>> When data breakpoint is set on __per_cpu_offset[cpu] (read-w
On Fri, Feb 05 2021 at 18:14, Lai Jiangshan wrote:
> On Fri, Feb 5, 2021 at 10:04 AM Thomas Gleixner wrote:
>> static inline void do_softirq_own_stack(void)
>> {
>
> Hello
>
> This patch and the next patch have three "#if[n]def" with
> __ARCH_HAS_DO_
On Fri, Feb 05 2021 at 11:10, Paolo Bonzini wrote:
> On 05/02/21 10:56, Borislav Petkov wrote:
>>> This would need an ack from the x86 people. Andy, Boris?
>>
>> This looks like the PKS baremetal pile needs to be upstream first.
>
> Yes, it does. I would like to have an ack for including the abo
Gabriel,
On Thu, Feb 04 2021 at 13:40, Gabriel Krisman Bertazi wrote:
> Michael Kerrisk suggested that, from an API perspective, it is a bad
> idea to share the PR_SYS_DISPATCH_ defines between the prctl operation
> and the selector variable. Therefore, define two new constants to be
> used by SU
The function to switch to the irq stack on x86 is now minimal and there is
only a single caller. Allow the stack switch to be inlined.
Signed-off-by: Thomas Gleixner
---
include/linux/interrupt.h |2 ++
kernel/softirq.c |4
2 files changed, 6 insertions(+)
--- a/include
The recent effort to make the ASM entry code slim and unified moved
the irq stack switching out of the low level ASM code so that the
whole return from interrupt work and state handling can be done in C
and the ASM code just handles the true low level details of entry and
exit (which is horrible en
Use the new inline stack switching and remove the old ASM indirect call
implementation.
Signed-off-by: Thomas Gleixner
---
arch/x86/entry/entry_64.S| 39 -
arch/x86/include/asm/irq_stack.h | 52 ---
arch/x86/kernel
There is no reason to have this as a seperate function for a single caller.
Signed-off-by: Thomas Gleixner
---
arch/x86/include/asm/irq.h |3 +++
arch/x86/include/asm/irq_stack.h |3 +--
arch/x86/kernel/irq_64.c |5 -
3 files changed, 4 insertions(+), 7 deletions
compiler be smarter about the whole thing.
Signed-off-by: Thomas Gleixner
---
arch/x86/entry/entry_64.S|1
arch/x86/include/asm/idtentry.h |9 ++
arch/x86/include/asm/irq_stack.h | 58 ---
arch/x86/kernel/irq.c|2 -
4 files
To avoid yet another macro implementation reuse the existing
run_sysvec_on_irqstack_cond() and move the set_irq_regs() handling into the
called function. Makes the code even simpler.
Signed-off-by: Thomas Gleixner
---
arch/x86/entry/common.c | 19 ++-
1 file changed, 6
), but there is no reason to do so. It simply can
use straight writes. This is a historical leftover from the low level ASM
code which used inc and jz to make a decision.
Rename it to hardirq_stack_inuse, make it a bool and use plain stores.
Signed-off-by: Thomas Gleixner
---
arch/x86/include
it can't be on the irq stack. Remove the conditional from
run_softirq_on_irqstack_cond() and rename the function accordingly.
Signed-off-by: Thomas Gleixner
---
arch/x86/Kconfig |1 +
arch/x86/include/asm/irq_stack.h | 19 ---
arch/x86/kernel/irq
Embracing a callout into instrumentation_begin() / instrumentation_begin()
does not really make sense. Make the latter instrumentation_end().
Signed-off-by: Thomas Gleixner
---
arch/x86/entry/common.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/entry/common.c
+++ b
To inline the stack switching and to prepare for enabling
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK provide a macro template for system
vectors and device interrupts and convert the system vectors over to it.
Signed-off-by: Thomas Gleixner
---
arch/x86/entry/entry_64.S|1
arch/x86/include
for no reason.
Split the handling function out and invoke it from both entry points.
Signed-off-by: Thomas Gleixner
---
arch/x86/kernel/apic/apic.c | 31 +++
1 file changed, 19 insertions(+), 12 deletions(-)
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel
RSP back
Document the unholy asm() logic while at it to reduce the amount of head
scratching required a half year from now.
Signed-off-by: Thomas Gleixner
---
arch/x86/include/asm/irq_stack.h | 104 +++
1 file changed, 104 insertions(+)
--- a/arch/x86/include
stack data type which
is on 64bit only used to declare the backing store. Move the definition
next to the inuse flag so they end up in the same cache line.
Signed-off-by: Thomas Gleixner
---
arch/x86/include/asm/irq_stack.h |6 +++---
arch/x86/include/asm/processor.h |7 +++
arch/x86/
reate mode 100644 arch/mips/include/uapi/asm/perf_regs.h
> create mode 100644 arch/mips/kernel/perf_regs.c
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
644 arch/mips/include/asm/mach-pistachio/irq.h
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
s/realtek-rtl.yaml
> create mode 100644 arch/mips/boot/dts/realtek/Makefile
> create mode 100644 arch/mips/boot/dts/realtek/cisco_sg220-26.dts
> create mode 100644 arch/mips/boot/dts/realtek/rtl838x.dtsi
> create mode 100644 arch/mips/boot/dts/realtek/rtl83xx.dtsi
6
> + bool "Cisco SG220-26"
> +endchoice
> +endif
> +
I've dropped that while applying, because it's just one DT so far and if
there are more of them, please move to arch/mips/realtek/Kconfig
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
Hi Tong
Am 04.02.21 um 19:52 schrieb Tong Zhang:
Hi Thomas,
The original problem was qxl_device_init() can fail,
when it fails there is no need to call
qxl_modeset_fini(qdev);
qxl_device_fini(qdev);
But those two functions are otherwise called in the qxl_drm_release() -
OK
have to be reordered correctly.
With the citation style address:
Acked-by: Thomas Zimmermann
qxl_modeset_fini(qdev);
qxl_device_fini(qdev);
}
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB
er doesn't figure this
out automatically. When I once tested this (in userspace) it did so.
Maybe the kernel is different?
For style reasons, I would have moved the static definition to the top
of the function; before the variable declarations. In any case:
Reviewed-by: Thomas Zimmerma
go into system ram by default,
and only move into device memory when they have to.
Signed-off-by: Gerd Hoffmann
Acked-by: Thomas Zimmermann
---
drivers/gpu/drm/qxl/qxl_dumb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/qxl/qxl_dumb.c b/drivers
Am 04.02.21 um 15:57 schrieb Gerd Hoffmann:
Suggested-by: Thomas Zimmermann
Signed-off-by: Gerd Hoffmann
Thanks for this.
Acked-by: Thomas Zimmermann
---
drivers/gpu/drm/qxl/qxl_display.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/qxl/qxl_display.c
b
Am 04.02.21 um 15:57 schrieb Gerd Hoffmann:
In case we have a shadow surface on shutdown release
it so it doesn't leak.
Signed-off-by: Gerd Hoffmann
Acked-by: Thomas Zimmermann
---
drivers/gpu/drm/qxl/qxl_display.c | 4
1 file changed, 4 insertions(+)
diff --git a/driver
*)offset);
> + pr_cont("Kernel relocated by 0x%pK\n", &__kaslr_offset);
are you sure ? I would have expected (void *)__kaslr_offset here.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
On Wed, Jan 27, 2021 at 02:24:30PM +0100, Thomas Bogendoerfer wrote:
> Selection of the DTB to be used was burried in more or less readable
> code in head.S. Move this code into a inline helper function and
> use it.
>
> Signed-off-by: Thomas Bogendoerfer
> ---
> ar
the internal switch, and cleared the mcm reset line. In this
> case the switch could be used from the OS. With this patch applied, the
> switch works both in an initramfs, and when (cold) booting from flash.
>
> arch/mips/ralink/reset.c | 4 ++--
> 1 file changed, 2 insertions(+), 2
Am 03.02.21 um 14:16 schrieb Gerd Hoffmann:
Now that we have the new release_event wait queue we can just
use that in qxl_fence_wait() and simplify the code alot.
Signed-off-by: Gerd Hoffmann
Acked-by: Thomas Zimmermann
---
drivers/gpu/drm/qxl/qxl_release.c | 42
Am 03.02.21 um 14:16 schrieb Gerd Hoffmann:
Reorganize qxl_device_fini() a bit.
Add missing unpin() calls.
Count releases. Add wait queue for releases. That way
qxl_device_fini() can easily wait until everything is
ready for proper shutdown.
Signed-off-by: Gerd Hoffmann
Acked-by: Thomas
Am 03.02.21 um 14:16 schrieb Gerd Hoffmann:
qxl_primary_atomic_disable must check whenever the framebuffer bo has a
shadow surface and in case it has check the shadow primary status.
I believe you :)
Acked-by: Thomas Zimmermann
Signed-off-by: Gerd Hoffmann
---
drivers/gpu/drm/qxl
re and during the
release in qxl_plane_prepare_fb()?
Best regards
Thomas
qxl_destroy_monitors_object(qdev);
}
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
Am 03.02.21 um 14:16 schrieb Gerd Hoffmann:
Balances the qxl_create_bo(..., pinned=true, ...);
call in qxl_release_bo_alloc().
Signed-off-by: Gerd Hoffmann
Acked-by: Thomas Zimmermann
---
drivers/gpu/drm/qxl/qxl_release.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers
On Wed, Feb 03, 2021 at 09:12:28PM +0800, Tiezhu Yang wrote:
> On 2/3/21 6:40 PM, Thomas Bogendoerfer wrote:
> > On Mon, Feb 01, 2021 at 08:56:06PM +0800, Tiezhu Yang wrote:
> > > On 02/01/2021 06:43 PM, Thomas Bogendoerfer wrote:
> > > > On Tue, Dec 29, 2020 at 08:55
insertion(+), 1 deletion(-)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
suggested to put better spelling casing,so inducted
>Subject line adjusted accoring to the change
> arch/mips/kernel/smp.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but
> 1 file changed, 1 insertion(+), 1 deletion(-)
applied to mips-next.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
On Mon, Feb 01, 2021 at 08:56:06PM +0800, Tiezhu Yang wrote:
> On 02/01/2021 06:43 PM, Thomas Bogendoerfer wrote:
> > On Tue, Dec 29, 2020 at 08:55:59PM +0800, Tiezhu Yang wrote:
> > > +++ b/arch/mips/include/uapi/asm/perf_regs.h
> > > @@ -0,0 +1,42 @@
> > >
devices */
if (!dev_is_pci(dev->dev))
return 0;
- pdev = to_pci_dev(dev->dev);
if (!NVInitVBIOS(dev))
return -ENODEV;
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(
case. We did have some complaints about performance
of the emulation. So that might be worth looking into.
Best regards
Thomas
Also I said "a pile more", most of the issues in fbcon/fbdev code
apply for all drivers.
Specifically the locking is somewhere between yolo and outright
The following commit has been merged into the timers/urgent branch of tip:
Commit-ID: ebb22a05943666155e6da04407cc6e913974c78c
Gitweb:
https://git.kernel.org/tip/ebb22a05943666155e6da04407cc6e913974c78c
Author:Thomas Gleixner
AuthorDate:Mon, 01 Feb 2021 20:24:17 +01:00
On Mon, Feb 01 2021 at 11:32, Linus Torvalds wrote:
> On Mon, Feb 1, 2021 at 11:24 AM Thomas Gleixner wrote:
>>
>> While it cures the problem on the reporters machine it breaks machines
>> with Intel chipsets which use bit 0-5 of the D register. So check only
>> for
: 211e5db19d15 ("rtc: mc146818: Detect and handle broken RTCs")
Reported-by: Serge Belyshev
Reported-by: Dirk Gouders
Signed-off-by: Thomas Gleixner
---
V2: Provide the actual delta patch. Should have stayed away from
computers today
---
drivers/rtc/rtc-cmos.c |4 ++--
drive
: 211e5db19d15 ("rtc: mc146818: Detect and handle broken RTCs")
Reported-by: Serge Belyshev
Reported-by: Dirk Gouders
Signed-off-by: Thomas Gleixner
---
drivers/rtc/rtc-cmos.c |8
drivers/rtc/rtc-mc146818-lib.c |7 +++
2 files changed, 15 insertions(+)
--- a/drive
On Wed, Jan 27, 2021 at 12:12:25PM +0800, Jinyang He wrote:
> Use kimage_vaddr to indicate kernel start address. Provide kaslr_offset()
> to get the kernel offset when KASLR is enabled. Error may occur before
> update_kimage_vaddr(), so put it at the end of the offset branch.
>
> Fixes: a307a4ce9e
> + */
haveing this hole here make all code more complicated. Does it hurt
to have R26 and R27 in the list ?
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.[ RFC1925, 2.3 ]
Linus,
please pull the latest core/urgent branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
core-urgent-2021-01-31
up to: 41c1a06d1d15: entry: Unbreak single step reporting behaviour
A single fix for the single step reporting regression caused by getting the
condition
recent UIP handling changes the time readout of non-existent RTCs hangs
forever as the read returns always 0xFF which means the UIP bit is
set. Sanity check the RTC before registering by checking the RTC_VALID
register for correctness.
Thanks,
tglx
-->
Thomas Gleixner
On Fri, Jan 29 2021 at 10:08, Peter Zijlstra wrote:
> On Fri, Jan 29, 2021 at 12:28:41AM +0100, Thomas Gleixner wrote:
>
>> Add a test case which covers this scenario. This is modeled after the
>> WINE testcase, but changes the expect in step #2 to:
>>
>>- Ex
On Fri, 29 Jan 2021 17:01:35 +0100
Gregory CLEMENT wrote:
> Could you sent me the patch I don't have it in my emails boxes.
https://lore.kernel.org/lkml/20201112032149.21906-1-chris.pack...@alliedtelesis.co.nz/raw
Thomas
--
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel eng
the GDB expectations are met as well.
Make it work for both 32 and 64 bit and fix the broken calculation of
number of tests for 32 bit as well.
Signed-off-by: Thomas Gleixner
---
tools/testing/selftests/breakpoints/breakpoint_test.c | 115 --
1 file changed, 107 insertions(+), 8
imitations.
> Nitesh, is there anything preventing this from being fixed
> in userspace ? (as Thomas suggested previously).
Everything with is not managed can be steered by user space.
Thanks,
tglx
Barry,
On Fri, Jan 08 2021 at 11:39, Barry Song wrote:
> diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
> index ab8567f32501..2b28314e2572 100644
> --- a/kernel/irq/manage.c
> +++ b/kernel/irq/manage.c
> @@ -1693,6 +1693,9 @@ __setup_irq(unsigned int irq, struct irq_desc *desc,
> struct i
On Wed, Jan 27 2021 at 09:19, Marcelo Tosatti wrote:
> On Wed, Jan 27, 2021 at 11:57:16AM +, Robin Murphy wrote:
>> > + hk_flags = HK_FLAG_DOMAIN | HK_FLAG_MANAGED_IRQ;
>> > + mask = housekeeping_cpumask(hk_flags);
>>
>> AFAICS, this generally resolves to something based on cpu_possible_mask
On Wed, Jan 27 2021 at 10:09, Marcelo Tosatti wrote:
> On Wed, Jan 27, 2021 at 12:36:30PM +, Robin Murphy wrote:
>> > > >/**
>> > > > * cpumask_next - get the next cpu in a cpumask
>> > > > @@ -205,22 +206,27 @@ void __init
>> > > > free_bootmem_cpumask_var(cpumask_var_t mask)
>> > > >
On Wed, Jan 27 2021 at 20:55, Gabriel Krisman Bertazi wrote:
> Yuxuan Shui writes:
>
> To gather the right attention, you should directly CC the correct
> maintainers.
You could have cc'ed them on your reply
> Fixes: 64eb35f701f0 ("ptrace: Migrate TIF_SYSCALL_EMU to use SYSCALL_WORK
> flag
On Thu, Jan 28 2021 at 16:29, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
> locking/core
> head: 997acaf6b4b59c6a9c259740312a69ea549cc684
> commit: 997acaf6b4b59c6a9c259740312a69ea549cc684 [10/10] lockdep: report
> broken irq restoration
> conf
gt;
>
> It's built from the 10-20210123 snapshot tarball.
>
> I can report this to the binutils folks, but might it be better if the
> objtool maintainer looks at it first? The
> binutils change might just have opened the gate to a bug in objtool.
>
>> thanks,
>>
>> greg k-h
>>
>
AFAIK you need this in stable trees:
From 1d489151e9f9d1647110277ff77282fe4d96d09b Mon Sep 17 00:00:00 2001
From: Josh Poimboeuf
Date: Thu, 14 Jan 2021 16:14:01 -0600
Subject: [PATCH] objtool: Don't fail on missing symbol table
--
Thomas
Liu,
On Fri, Jan 22 2021 at 08:47, Liu Chao wrote:
> Replace the cpumask used in irq_calc_affinity_vectors from all possible
> CPUs to only housekeeping CPUs.
>
> When we have isolated CPUs used by real-time tasks, IRQs will be move to
> housekeeping CPUs.
No.
> If there are too many IRQ vectors
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