Cc: Thomas Gleixner
Cc: iommu@lists.linux-foundation.org (open list:INTEL IOMMU (VT-d))
Cc: x...@kernel.org
Signed-off-by: Ricardo Neri
---
Changes since v4:
* Introduced this patch.
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
drivers/iommu/amd/iommu.c | 9 ++
: Stephane Eranian
Cc: Thomas Gleixner
Cc: iommu@lists.linux-foundation.org (open list:INTEL IOMMU (VT-d))
Cc: x...@kernel.org
Reviewed-by: Ashok Raj
Signed-off-by: Ricardo Neri
---
Changes since v4:
* Introduced this patch. Previous versions had special functions to
allocate and set the aff
eixner
Cc: iommu@lists.linux-foundation.org (open list:INTEL IOMMU (VT-d))
Cc: x...@kernel.org
Reviewed-by: Ashok Raj
Signed-off-by: Ricardo Neri
---
Changes since v4:
* Introduced this patch.
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
drivers/i
eviewed-by: Ashok Raj
Signed-off-by: Ricardo Neri
---
Changes since v4:
* None
Changes since v3:
* None
Changes since v2:
* None
Changes since v1:
* Introduced this patch.
---
drivers/iommu/intel/irq_remapping.c | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git
.org
Cc: x...@kernel.org
Suggested-by: Thomas Gleixner
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch.
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
arch/x86/include/asm/irqdomain.h | 1
Kleen
Cc: "Ravi V. Shankar"
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch.
Changes since v4:
* N/A
Changes since
specific delivery mode.
Cc: Andi Kleen
Cc: David Woodhouse
Cc: "Ravi V. Shankar"
Cc: Lu Baolu
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Reviewed-by: Lu Baolu
Signed-off-by: Ricardo Neri
-
ists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Suggested-by: Ashok Raj
Reviewed-by: Lu Baolu
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch.
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since
: Andi Kleen
Cc: David Woodhouse
Cc: "Ravi V. Shankar"
Cc: Lu Baolu
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Lu Baolu
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch.
Cha
that of
the APIC driver.
Cc: Andi Kleen
Cc: "Ravi V. Shankar"
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Ashok Raj
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Updated i
using the delivery mode of the APIC driver in use.
Cc: Andi Kleen
Cc: "Ravi V. Shankar"
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Suggested-by: Thomas Gleixner
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
-
kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* None
Changes since v4:
* Dropped exposing hpet_readq() as it is not needed.
Changes since v3:
* None
Changes since v2:
* None
Changes since v1:
* None
---
arch/x86/include/asm/hpet.h | 1 +
arch/x86/ker
rnel.org
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
drivers/iommu/amd/iommu.c | 23 ++-
1 file changed, 22 insertions(+), 1 deletion(-
reservation of a channel for it.
Cc: Andi Kleen
Cc: "Ravi V. Shankar"
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Suggested-by: Thomas Gleixner
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
*
uot;
Cc: Joerg Roedel
Cc: Suravee Suthikulpanit
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes s
d-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch.
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
include/linux/irq.h | 4
kernel/irq/matrix.c | 32 +++-
2 files c
ned-off-by: Ricardo Neri
---
When programming the HPET channel in periodic mode, a udelay(1) between
the two successive writes to HPET_Tn_CMP was introduced in commit
e9e2cdb41241 ("[PATCH] clockevents: i386 drivers"). The commit message
does not give any reason for such delay. The hardware sp
detector if enabled
in the kernel command line.
Cc: Andi Kleen
Cc: Stephane Eranian
Cc: "Ravi V. Shankar"
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Added a che
functional changes.
Cc: Andi Kleen
Cc: David Woodhouse
Cc: "Ravi V. Shankar"
Cc: Lu Baolu
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Ashok Raj
Reviewed-by: Tony Luck
Reviewed-by: Lu Baolu
Signed-off-by: Ri
adead.org
https://lore.kernel.org/all/tip-dea978632e8400b84888bad20df0cd91c18f0...@git.kernel.org/t/
[13]. https://lore.kernel.org/lkml/20190623132340.463097...@linutronix.de/
Ricardo Neri (29):
irq/matrix: Expose functions to allocate the best CPU for new vectors
x86/apic: Add irq_cfg::deli
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* None
Changes since v4:
* None
Changes since v3:
* None
Changes since v2:
* None
Changes since v1:
* None
---
include/l
uot;
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* None
Changes since v4:
* None
Changes since v3:
* Squashed into this patch a previous patch to make
arch_touch_nmi_wat
.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
init/main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
di
: "Ravi V. Shankar"
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Updated to call instrumentation_end() as per f051f6979550 ("x86/nmi:
Pr
ion.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
arch/x86/kernel/apic/apic.c | 2
: Andi Kleen
Cc: Stephane Eranian
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Squashed a previously separate patch to support interrupt remapping into
this patch. There is
their own options.
Cc: Andi Kleen
Cc: Nicholas Piggin
Cc: Stephane Eranian
Cc: "Ravi V. Shankar"
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Corrected typo in comm
: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch
Changes since v4:
* N/A
Changes since v3:
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
drivers/iommu/amd/amd_iommu.h | 3 +++
drivers/iommu/amd/init.
-line parsing using an early_param, as
__setup("nmi_watchdog=") only parses generic options.
Cc: Andi Kleen
Cc: Stephane Eranian
Cc: "Ravi V. Shankar"
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-
las Piggin
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Added watchdog_nmi_start() to be used when tsc_khz is recalibrated.
* Always build the x86-specific hardlockup detector shim; not only
when the HPET-based detector is selected.
* Corrected a typo in
avi V. Shankar"
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Suggested-by: Andi Kleen
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
NOTE: The error characterization data is repetead here from the cover
letter.
---
Changes since v5:
: Nicholas Piggin
Cc: Stephane Eranian
Cc: "Ravi V. Shankar"
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* None
Changes since v4:
* Switching to the perf-based lockup dete
: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Introduced this patch
Changes since v4
* N/A
Changes since v3
* N/A
Changes since v2:
* N/A
Changes since v1:
* N/A
---
arch/x86/kernel/tsc.c | 6 ++
1 file changed, 6 insertions(+)
diff --
: Andi Kleen
Cc: Stephane Eranian
Cc: "Ravi V. Shankar"
Cc: iommu@lists.linux-foundation.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: x...@kernel.org
Suggested-by: Thomas Gleixner
Reviewed-by: Tony Luck
Signed-off-by: Ricardo Neri
---
Changes since v5:
* Relocated the delc
On Fri, May 06, 2022 at 09:48:28PM +0200, Thomas Gleixner wrote:
> Ricardo,
Thank you very much for your feedback Thomas! I am sorry for my late reply, I
had been out of office.
>
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> > Certain types of interrupts, such as NMI,
On Fri, May 06, 2022 at 09:53:54PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> > Currently, the delivery mode of all interrupts is set to the mode of the
> > APIC driver in use. There are no restrictions in hardware to configure the
> >
On Fri, May 06, 2022 at 10:05:34PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> > There are no restrictions in hardware to set MSI messages with its
> > own delivery mode.
>
> "messages with its own" ? Plural/singular confu
On Fri, May 06, 2022 at 11:12:20PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> > Vectors are meaningless when allocating IRQs with NMI as the delivery
> > mode.
>
> Vectors are not meaningless. NMI has a fixed vector.
>
> Th
On Fri, May 06, 2022 at 11:23:23PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> > The Intel IOMMU interrupt remapping driver already programs correctly the
> > delivery mode of individual irqs as per their irq_data. Improve handling
> >
On Fri, May 06, 2022 at 11:26:22PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> >
> > + if (info->flags & X86_IRQ_ALLOC_AS_NMI) {
> > + /* Only one IRQ per NMI */
> > + if (nr_irqs != 1)
> > +
On Fri, May 06, 2022 at 11:31:56PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> > +*
> > +* Also, NMIs do not have an associated vector. No need for cleanup.
>
> They have a vector and what the heck is this cleanup comment
On Fri, May 06, 2022 at 11:41:13PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> > Programming an HPET channel as periodic requires setting the
> > HPET_TN_SETVAL bit in the channel configuration. Plus, the comparator
> > register must b
On Fri, May 06, 2022 at 11:51:52PM +0200, Thomas Gleixner wrote:
> On Fri, May 06 2022 at 23:41, Thomas Gleixner wrote:
> > On Thu, May 05 2022 at 16:59, Ricardo Neri wrote:
> >> Programming an HPET channel as periodic requires setting the
> >> HPET_TN_SETVAL bit in the
On Mon, May 09, 2022 at 04:03:39PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 17:00, Ricardo Neri wrote:
> > + if (is_hpet_hld_interrupt(hdata)) {
> > + /*
> > +* Kick the timer first. If the HPET channel is periodic, it
> > +
On Tue, May 10, 2022 at 08:38:22PM +1000, Nicholas Piggin wrote:
> Excerpts from Ricardo Neri's message of May 6, 2022 9:59 am:
> > Certain implementations of the hardlockup detector require support for
> > Inter-Processor Interrupt shorthands. On x86, support for these can only
> > be determined a
On Tue, May 10, 2022 at 08:46:41PM +1000, Nicholas Piggin wrote:
> Excerpts from Ricardo Neri's message of May 6, 2022 10:00 am:
> > Prepare hardlockup_panic_setup() to handle a comma-separated list of
> > options. Thus, it can continue parsing its own command-line options while
> > ignoring parame
On Fri, May 13, 2022 at 10:50:09PM +0200, Thomas Gleixner wrote:
> On Fri, May 13 2022 at 11:03, Ricardo Neri wrote:
> > On Fri, May 06, 2022 at 11:12:20PM +0200, Thomas Gleixner wrote:
> >> Why would a NMI ever end up in this code? There is no vector management
> >>
vi V. Shankar"
> > Cc: iommu@lists.linux-foundation.org
> > Cc: linuxppc-...@lists.ozlabs.org
> > Cc: x...@kernel.org
> > Suggested-by: Thomas Gleixner
> > Reviewed-by: Tony Luck
> > Signed-off-by: Ricardo Neri
> > ---
> > Changes since v5:
> > * Reloc
On Mon, May 09, 2022 at 03:59:40PM +0200, Thomas Gleixner wrote:
> On Thu, May 05 2022 at 17:00, Ricardo Neri wrote:
> > Add a NMI_WATCHDOG as a new category of NMI handler. This new category
> > is to be used with the HPET-based hardlockup detector. This detector
> > does not
c_khz.
> >
> > When the HPET hardlockup is not in use, restarting the NMI watchdog is
> > a noop.
> >
> > Cc: Andi Kleen
> > Cc: Stephane Eranian
> > Cc: "Ravi V. Shankar"
> > Cc: iommu@lists.linux-foundation.org
> > Cc: l
On Tue, May 10, 2022 at 01:44:05PM +0200, Thomas Gleixner wrote:
> On Tue, May 10 2022 at 21:16, Nicholas Piggin wrote:
> > Excerpts from Ricardo Neri's message of May 6, 2022 10:00 am:
> >> + /*
> >> + * If in use, the HPET hardlockup detector relies on tsc_khz.
> >> + * Reconfigure it to mak
On Sat, May 14, 2022 at 10:17:38AM +0200, Thomas Gleixner wrote:
> On Fri, May 13 2022 at 14:19, Ricardo Neri wrote:
> > On Fri, May 06, 2022 at 11:41:13PM +0200, Thomas Gleixner wrote:
> >> The argument about not bloating the code
> >> with an "obvious???&q
On Tue, Jun 18, 2019 at 01:08:06AM +0200, Thomas Gleixner wrote:
> Stephane,
>
> On Mon, 17 Jun 2019, Stephane Eranian wrote:
> > On Mon, Jun 17, 2019 at 1:25 AM Thomas Gleixner wrote:
> > > Great that there is no trace of any mail from Andi or Stephane about this
> > > on LKML. There is no probl
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