On 3/28/23 09:15, Nicholas Piggin wrote:
On Tue Mar 28, 2023 at 2:09 AM AEST, Cédric Le Goater wrote:
On 3/27/23 14:45, Nicholas Piggin wrote:
This series is growing a bit I'm sorry. v2 series added extra interrupt
vectors support which was actually wrong because interrupt handling
code can
, more work is needed to exclude
certain tests (e.g., rtas) and adjust parameters (e.g., increase memory
size) to allow powernv to work. For now it can run single test cases.
Signed-off-by: Nicholas Piggin
Reviewed-by: Cédric Le Goater
---
Since v2:
- Don't call opal_init() twice [Cedric
On 3/27/23 14:45, Nicholas Piggin wrote:
This series is growing a bit I'm sorry. v2 series added extra interrupt
vectors support which was actually wrong because interrupt handling
code can only cope with 0x100-size vectors and new ones are 0x80 and
0x20. It managed to work because those alias
Hello Nick,
On 3/20/23 08:03, Nicholas Piggin wrote:
This is a basic first pass at powernv support using OPAL (skiboot)
firmware.
The ACCEL is a bit clunky, now defaulting to tcg for powernv machine.
It also does not yet run in the run_tests.sh batch process, more work
is needed to exclude
On 12/2/22 12:04, Daniel Henrique Barboza wrote:
On 11/30/22 17:45, Crystal Wood wrote:
On Mon, 2022-11-28 at 14:36 +1000, Nicholas Piggin wrote:
BookE KVM is in a deep maintenance state, I'm not sure how much testing
it gets. I don't have a test setup, and it does not look like QEMU has
any
On 11/24/22 09:31, Pingfan Liu wrote:
On Mon, Nov 21, 2022 at 8:57 PM Cédric Le Goater wrote:
On 11/21/22 12:57, Pingfan Liu wrote:
Sorry that forget a subject.
On Mon, Nov 21, 2022 at 7:54 PM Pingfan Liu wrote:
Hello Powerpc folks,
I encounter an kdump bug, which I bisect and pin
On 11/21/22 12:57, Pingfan Liu wrote:
Sorry that forget a subject.
On Mon, Nov 21, 2022 at 7:54 PM Pingfan Liu wrote:
Hello Powerpc folks,
I encounter an kdump bug, which I bisect and pin commit 174db9e7f775
("powerpc/pseries/pci: Add support of MSI domains to PHB hotplug")
In that case,
: Yang Yingliang
Reviewed-by: Cédric Le Goater
Thanks,
C.
---
arch/powerpc/sysdev/xive/spapr.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index e2c8f93b535b..e45419264391 100644
--- a/arch/powerpc/sysdev/xive/sp
Hello Christophe,
On 6/25/22 11:49, Christophe JAILLET wrote:
'xibm->count' really looks like a number of bits (see how it is used in
__xive_irq_bitmap_alloc()), so use the bitmap API to allocate and free this
bitmap.
This improves semantic and potentially avoids some over memory allocation.
ate and initialize the irq bitmap, paired with
bitmap_free() for consistency.
Signed-off-by: Nathan Lynch
Reviewed-by: Cédric Le Goater
Thanks,
C.
---
arch/powerpc/sysdev/xive/spapr.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/xive/spapr.
rrupt
controller")
Signed-off-by: Miaoqian Lin
Reviewed-by: Cédric Le Goater
Thanks,
C.
---
arch/powerpc/sysdev/xive/spapr.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index 29456c255f9f..50
tros
(kernel < 4.14), I doubt anyone will complain.
Signed-off-by: Alexey Kardashevskiy
Acked-by: Cédric Le Goater
Thanks,
C.
---
arch/powerpc/kvm/Makefile | 2 +-
arch/powerpc/include/asm/kvm_ppc.h | 7 -
arch/powerpc/kvm/book3s_xive.h
1ee04f11ae ("powerpc/xive: Add a kernel parameter for StoreEOI")
Signed-off-by: Randy Dunlap
From: Igor Zhbanov
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0de...@omprussia.ru
Cc: Benjamin Herrenschmidt
Cc: Michael Ellerman
Cc: Cédric Le Goater
Cc: Paul Mackerras
Reviewed-
On 3/3/22 06:33, Nicholas Piggin wrote:
Move the cede abort logic out of xive escalation rearming and into
the caller to prepare for handling a similar case with nested guest
entry.
Signed-off-by: Nicholas Piggin
Reviewed-by: Cédric Le Goater
In xive_esc_irq() :
if (vcpu
XIVE interrupt mode.
Cc: Sukadev Bhattiprolu
Cc: Dany Madden
Signed-off-by: Cédric Le Goater
---
drivers/net/ethernet/ibm/ibmvnic.c | 35 ++
1 file changed, 26 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c
b/drivers/net/ethernet/ibm
-by: Cédric Le Goater
---
NOT compile tested (I don't have a cross compiler and won't install one).
So if some correction or improvement are needed, feel free to propose and
commit it directly.
A cross compiler takes a couple of seconds to install on any distro.
It takes a little more to compile
On 1/26/22 15:16, Miguel Ojeda wrote:
Hi PPC folks,
Our ppc64le CI deterministically triggers a hard lockup / hang under
QEMU since v5.17-rc1 (upgrading from v5.16).
Bisecting points to 0faf20a1ad16 ("powerpc/64s/interrupt: Don't enable
MSR[EE] in irq handlers unless perf is in use").
KVM: let kvm_destroy_vm_debugfs clean up vCPU
debugfs directories").
Suggested-by: Fabiano Rosas
Signed-off-by: Alexey Kardashevskiy
Reviewed-by: Cédric Le Goater
Thanks,
C.
---
Changes:
v5:
* fixed e500mc2
v4:
* added "kvm-xive-%p"
v3:
* reworked commit log, especially, the b
-by: Cédric Le Goater
Signed-off-by: Sachin Sant
Reviewed-by: Cédric Le Goater
Thanks,
C.
---
diff -Naurp a/arch/p werpc/sysdev/xive/common.c
b/arch/powerpc/sysdev/xive/common.c
--- a/arch/powerpc/sysdev/xive/common.c 2022-01-05 08:52:59.460118219 -0500
+++ b/arch/powerpc/sysdev/xive/common.c 2022
information(dxa) to be displayed for online processors only.
Signed-off-by: Sachin Sant
Looks good to me. We should do the same for :
/sys/kernel/debug/powerpc/xive/ipis
Reviewed-by: Cédric Le Goater
Thanks,
C.
---
diff -Naurp a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
On 12/26/21 14:54, Ammar Faizi wrote:
Commit 930914b7d528fc ("powerpc/xive: Add a debugfs file to dump
internal XIVE state") forgot to add a null check.
Add it.
Cc: Cédric Le Goater
Cc: Michael Ellerman
Fixes: 930914b7d528fc6b0249bffc00564100bcf6ef75 ("powerpc/xive: Add
- xive->dentry = debugfs_create_file(name, S_IRUGO, arch_debugfs_dir,
+ xive->dentry = debugfs_create_file("xive", S_IRUGO,
xive->kvm->debugfs_dentry,
xive, _debug_fops);
The KVM XIVE device implements a "xics-on-xive" interface, the XICS
KVM: let kvm_destroy_vm_debugfs clean up vCPU
debugfs directories").
Suggested-by: Fabiano Rosas
Signed-off-by: Alexey Kardashevskiy
Reviewed-by: Cédric Le Goater
One comment below.
---
Changes:
v4:
* added "kvm-xive-%p"
v3:
* reworked commit log, especially, the bit about rem
see
on my screen; open to ideas on that front!
Bah. Fix below.
That's a fix for the issue I was seeing on pseries with NVMe.
Tested-by: Cédric Le Goater
Thanks,
C.
Thanks,
tglx
---
diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c
index 71802410e2ab..9b4910befeda 100644
---
On 12/17/21 04:07, Alexey Kardashevskiy wrote:
On 12/16/21 05:11, Cédric Le Goater wrote:
On 12/15/21 02:33, Alexey Kardashevskiy wrote:
At the moment KVM on PPC creates 3 types of entries under the kvm debugfs:
1) "%pid-%fd" per a KVM instance (for all platforms);
2) "v
On 12/15/21 02:33, Alexey Kardashevskiy wrote:
At the moment KVM on PPC creates 3 types of entries under the kvm debugfs:
1) "%pid-%fd" per a KVM instance (for all platforms);
2) "vm%pid" (for PPC Book3s HV KVM);
3) "vm%u_vcpu%u_timing" (for PPC Book3e KVM).
The problem with this is that
On 12/14/21 20:32, Christophe Leroy wrote:
Le 14/12/2021 à 19:23, Paul Moore a écrit :
On Tue, Dec 14, 2021 at 12:59 PM Christophe Leroy
wrote:
Hello Paul,
I've been trying to setup your test suite on my powerpc board but it's
based on Perl and on a lot of optional Perl packages. I was
On 12/7/21 21:42, Thomas Gleixner wrote:
Cedric,
On Tue, Dec 07 2021 at 16:50, Cédric Le Goater wrote:
On 12/7/21 12:36, Michael Ellerman wrote:
This patch should drop those selects I guess. Can you send an
incremental diff for Thomas to squash in?
Sure.
Removing all the tendrils
On 12/7/21 12:36, Michael Ellerman wrote:
Cédric Le Goater writes:
Hello Thomas,
On 12/6/21 23:27, Thomas Gleixner wrote:
This code is broken since day one. ppc4xx_setup_msi_irqs() has the
following gems:
1) The handling of the result of msi_bitmap_alloc_hwirqs() is completely
Hello Thomas,
On 12/6/21 23:27, Thomas Gleixner wrote:
This code is broken since day one. ppc4xx_setup_msi_irqs() has the
following gems:
1) The handling of the result of msi_bitmap_alloc_hwirqs() is completely
broken:
When the result is greater than or equal 0 (bitmap
initialization and move the
'save-restore' entry under the native (PowerNV) backend to fix compile
when !CONFIG_PPC_POWERNV.
Reported-by: kernel test robot
Fixes: 1e7684dc4fc7 ("powerpc/xive: Add a debugfs toggle for save-restore")
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sys
On 11/30/21 23:41, Thomas Gleixner wrote:
On Tue, Nov 30 2021 at 23:10, Thomas Gleixner wrote:
On Tue, Nov 30 2021 at 22:48, Cédric Le Goater wrote:
On 11/29/21 22:38, Thomas Gleixner wrote:
On Mon, Nov 29 2021 at 08:33, Cédric Le Goater wrote:
thanks for having a look. I fixed up
On 11/29/21 22:38, Thomas Gleixner wrote:
Cedric,
On Mon, Nov 29 2021 at 08:33, Cédric Le Goater wrote:
On 11/27/21 02:18, Thomas Gleixner wrote:
Remove the kobject.h include from msi.h as it's not required and add a
sysfs.h include to the core code instead.
Signed-off-by: Thomas Gleixner
On 11/27/21 02:18, Thomas Gleixner wrote:
The [PCI] MSI code has gained quite some warts over time. A recent
discussion unearthed a shortcoming: the lack of support for expanding
PCI/MSI-X vectors after initialization of MSI-X.
PCI/MSI-X has no requirement to setup all vectors when MSI-X is
On 11/27/21 02:19, Thomas Gleixner wrote:
Split out the non irqdomain code into its own file.
Signed-off-by: Thomas Gleixner
---
drivers/pci/msi/Makefile |5 ++--
drivers/pci/msi/legacy.c | 51
+++
drivers/pci/msi/msi.c| 46
+void __weak arch_teardown_msi_irqs(struct pci_dev *dev)
+{
+ struct msi_desc *desc;
+ int i;
+
+ for_each_pci_msi_entry(desc, dev) {
+ if (desc->irq) {
+ for (i = 0; i < entry->nvec_used; i++)
I guess this is 'desc' ?
Thanks,
C.
+
On 11/27/21 02:18, Thomas Gleixner wrote:
Remove the kobject.h include from msi.h as it's not required and add a
sysfs.h include to the core code instead.
Signed-off-by: Thomas Gleixner
This patch breaks compile on powerpc :
CC arch/powerpc/kernel/msi.o
In file included from
On 11/26/21 06:21, Nicholas Piggin wrote:
KVM does not support VAS so guests always print a useless error on boot
vas: HCALL(398) error -2, query_type 0, result buffer 0x57f2000
Change this to only print the message if the error is not H_FUNCTION.
Just being curious, why is it even
On 11/18/21 10:21, Michael Ellerman wrote:
Cédric Le Goater writes:
and fix some compile issues when !CONFIG_DEBUG_FS.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 17 ++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc
On 11/18/21 10:24, Michael Ellerman wrote:
Cédric Le Goater writes:
On 11/11/21 11:41, Michael Ellerman wrote:
Cédric Le Goater writes:
On processors with a XIVE interrupt controller (POWER9 and above), the
kernel can use either doorbells or XIVE to generate CPU IPIs. Sending
doorbell
On 11/16/21 17:58, Marc Zyngier wrote:
On Tue, 16 Nov 2021 13:40:22 +,
Cédric Le Goater wrote:
Commit 4f86a06e2d6e ("irqdomain: Make normal and nomap irqdomains
exclusive") introduced an IRQ_DOMAIN_FLAG_NO_MAP flag to isolate the
'nomap' domains still in use under the po
On 11/16/21 15:23, Greg Kurz wrote:
On Tue, 16 Nov 2021 14:40:22 +0100
Cédric Le Goater wrote:
Commit 4f86a06e2d6e ("irqdomain: Make normal and nomap irqdomains
exclusive") introduced an IRQ_DOMAIN_FLAG_NO_MAP flag to isolate the
'nomap' domains still in use under the po
.14+
Fixes: 4f86a06e2d6e ("irqdomain: Make normal and nomap irqdomains exclusive")
Signed-off-by: Cédric Le Goater
---
Marc,
The Fixes tag is there because the patch in question revealed that
something was broken in XIVE. genirq is not in cause. However, I
don't know for PS3 and Cell. May be l
Hello Marc,
This patch is breaking the POWER9/POWER10 XIVE driver (these are not
old PPC systems :) on machines sharing the same LSI HW IRQ. For instance,
a linux KVM guest with a virtio-rng and a virtio-balloon device. In that
case, Linux creates two distinct IRQ mappings which can lead to
Hello Mark,
On 5/20/21 18:37, Marc Zyngier wrote:
Direct mappings are completely exclusive of normal mappings, meaning
that we can refactor the code slightly so that we can get rid of
the revmap_direct_max_irq field and use the revmap_size field
instead, reducing the size of the irqdomain
On 11/11/21 11:41, Michael Ellerman wrote:
Cédric Le Goater writes:
On processors with a XIVE interrupt controller (POWER9 and above), the
kernel can use either doorbells or XIVE to generate CPU IPIs. Sending
doorbell is generally preferred to using the XIVE IC because it is
faster
The XIVE driver under Linux uses a single interrupt priority and only
one event queue is configured per CPU. Expose the contents under
a 'xive/eqs/cpuX' debugfs file.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 37 +++
1 file changed, 37
Use a 'cpus' file to dump CPU states and 'interrupts' to dump IRQ states.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 36 +--
1 file changed, 25 insertions(+), 11 deletions(-)
diff --git a/arch/powerpc/sysdev/xive/common.c
b/arch/powerpc
or performance. Only useful on POWER9 and above.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/include/asm/dbell.h| 1 +
arch/powerpc/kernel/dbell.c | 17 +
arch/powerpc/platforms/powernv/smp.c| 7 +--
arch/powerpc/platforms
and remove the EQ entries output which is not very useful since only
the next two events of the queue are taken into account. We will
improve the dump of the EQ in the next patches.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 27 +++
1 file
It can be used to deactivate temporarily StoreEOI for tests or
performance on platforms supporting the feature (POWER10)
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 17 ++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc
is
activated. Doorbells cannot be used in that case.
Finally, it activates StoreEOI support for the PowerNV platform. OPAL
for P10 has been released and we are free to use this extension.
Thanks,
C.
Cédric Le Goater (11):
powerpc/xive: Replace pr_devel() by pr_debug() to ease debug
powerpc
These routines are not on hot code paths and pr_debug() is easier to
activate. Also add a '0x' prefix to hex printed values (HW IRQ number).
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 29 +++
arch/powerpc/sysdev/xive/spapr.c | 38
and extend output of debugfs and xmon with addresses of the ESB
management and trigger pages.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 54 +++
1 file changed, 27 insertions(+), 27 deletions(-)
diff --git a/arch/powerpc/sysdev/xive
StoreEOI is activated by default on platforms supporting the feature
(POWER10) and will be used as soon as firmware advertises its
availability. The kernel parameter provides a way to deactivate its
use. It can be still be reactivated through debugfs.
Signed-off-by: Cédric Le Goater
---
arch
On POWER10, the automatic "save & restore" of interrupt context is
always available. Provide a way to deactivate it for tests or
performance.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/xive-internal.h | 1 +
arch/powerpc/sysdev/xive/common.c| 1 +
arch/
igned-off-by: Cédric Le Goater
---
arch/powerpc/include/asm/opal-api.h | 1 +
arch/powerpc/sysdev/xive/native.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/arch/powerpc/include/asm/opal-api.h
b/arch/powerpc/include/asm/opal-api.h
index 0b63ba7d5917..a2bc4b95e703 100644
--- a/arch/powe
and fix some compile issues when !CONFIG_DEBUG_FS.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 17 ++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/sysdev/xive/common.c
b/arch/powerpc/sysdev/xive/common.c
index
CONFIG_PPC64_BOOT_WRAPPER is selected by CPU_LITTLE_ENDIAN which is
used to compile support for other platforms such as Microwatt. There
is no need for OPAL calls on these.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/boot/serial.c | 2 +-
arch/powerpc/boot/Makefile | 2 +-
2 files changed
in get_irqchip_state().
Fixes: da15c03b047d ("powerpc/xive: Implement get_irqchip_state method for XIVE
to fix shutdown race")
Cc: sta...@vger.kernel.org#v5.4+
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
.
Signed-off-by: Anton Blanchard
Reviewed-by: Cédric Le Goater
Thanks,
C.
---
drivers/char/ipmi/bt-bmc.c | 26 --
1 file changed, 16 insertions(+), 10 deletions(-)
diff --git a/drivers/char/ipmi/bt-bmc.c b/drivers/char/ipmi/bt-bmc.c
index 6e3d247b55d1..f85fafc96ef6
p_update_bits(bt_bmc->map, bt_bmc->offset +
MICROWATT_IRQ_MASK,
+ (IRQ_HOST_TO_BMC_ATTN | IRQ_HOST_NOT_BUSY),
+ (IRQ_HOST_TO_BMC_ATTN | IRQ_HOST_NOT_BUSY));
This is the only difference. May be we could introduce a ->config_irq_hw()
On 10/6/21 04:12, Anton Blanchard wrote:
While most of the driver is arch agnostic, setting up and handling
interrupts, and enabling the hardware is not. Create bt_bmc_ops to
handle these functions.
Signed-off-by: Anton Blanchard
See comment on patch 5. Any how,
Reviewed-by: Cédric Le
/include/asm/interrupt.h:168
BUG_ON(!arch_irq_disabled_regs(regs) && !(regs->msr & MSR_EE));
I was hitting this problem when I rebooted a P8 tuleta system and
this series fixes it.
Tested-by: Cédric Le Goater
Thanks,
C.
Fix this by making an _async version of the handler
On 9/30/21 12:25, Cédric Le Goater wrote:
The IPR drivers tests for MSI support at probe time with MSI vector 0
and when done, frees the IRQ with free_irq(). This test was introduced
by 95fecd90397e ("ipr: add test for MSI interrupt support") as an
improvement of commit 5a9ef25b14d3 (&
ng hypervisor, PowerVM or QEMU/KVM.
Cc: Wen Xiong
Cc: Douglas Miller
Cc: Brian King
Fixes: a5f3d2c17b07 ("powerpc/pseries/pci: Add MSI domains")
Signed-off-by: Cédric Le Goater
---
We could also revert commit 95fecd90397e ("ipr: add test for MSI
interrupt support") w
On 9/11/21 4:35 PM, Sasha Levin wrote:
> On Fri, Sep 10, 2021 at 07:48:18AM +0200, Cédric Le Goater wrote:
>> On 9/10/21 2:14 AM, Sasha Levin wrote:
>>> From: Cédric Le Goater
>>>
>>> [ Upstream commit 1753081f2d445f9157550692fcc4221cd3ff0958 ]
>&g
8af248a8f4 ("powerpc/xics: Rename the map handler in a check handler")
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xics/xics-common.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/xics/xics-common.c
b/arch/powerpc/sysdev/xics/xics-common.
On 9/10/21 2:14 AM, Sasha Levin wrote:
> From: Cédric Le Goater
>
> [ Upstream commit 1753081f2d445f9157550692fcc4221cd3ff0958 ]
>
> PCI MSIs now live in an MSI domain but the underlying calls, which
> will EOI the interrupt in real mode, need an HW IRQ number mapped in
>
mpat syscall support")
> added generic support for bi-arch.
>
> Convert powerpc to that bi-arch generic audit support.
>
> Signed-off-by: Christophe Leroy
Reviewed-by: Cédric Le Goater
Thanks,
C.
> ---
> v2:
> - Missing 'git add' for arch/powerpc/include/asm/unistd
as errors
Cc: Christophe Leroy
Signed-off-by: Cédric Le Goater
---
arch/powerpc/kernel/prom.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index f620e04dc9bf..44b2cdc0aae3 100644
--- a/arch/powerpc/kernel/prom.c
+++ b
/dc14509a28a993738b1325211f412be72a4f9b1e.1629701132.git.christophe.le...@csgroup.eu/
Thanks,
C.
Changes in v2:
- reworked early_reserve_mem_dt()
- removed asmlinkage
Cédric Le Goater (2):
powerpc/prom: Fix unused variable ‘reserve_map’ when CONFIG_PPC32 is
not set
powerpc/compat_sys: Declare syscalls
arch
This fixes a compile error with W=1.
Cc: Christophe Leroy
Signed-off-by: Cédric Le Goater
---
arch/powerpc/include/asm/syscalls.h | 30 +
1 file changed, 30 insertions(+)
diff --git a/arch/powerpc/include/asm/syscalls.h
b/arch/powerpc/include/asm/syscalls.h
index
On 8/23/21 10:28 AM, Christophe Leroy wrote:
>
>
> Le 19/08/2021 à 16:56, Christophe Leroy a écrit :
>>
>>
>> Le 19/08/2021 à 14:56, Cédric Le Goater a écrit :
>>> This fixes a compile error with W=1.
>>>
>>> Cc: Christophe Leroy
>>
On 8/19/21 4:42 PM, Christophe Leroy wrote:
>
>
> Le 19/08/2021 à 14:56, Cédric Le Goater a écrit :
>> and condition its call with IS_ENABLED(CONFIG_PPC32). This fixes a
>> compile error with W=1.
>>
>> arch/powerpc/kernel/prom.c: In function ‘early_reserve_me
This fixes a compile error with W=1.
Signed-off-by: Cédric Le Goater
---
May be, this was sent already ?
arch/powerpc/kvm/book3s_64_mmu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index
.
Cédric Le Goater (6):
powerpc/prom: Introduce early_reserve_mem_old()
powerpc/pseries/vas: Declare pseries_vas_fault_thread_fn() as static
KVM: PPC: Book3S PR: Declare kvmppc_handle_exit_pr()
KVM: PPC: Book3S PR: Remove unused variable
audit: Declare ppc32_classify_syscall()
powerpc
This fixes a compile error with W=1.
Fixes: 6d0aaf5e0de0 ("powerpc/pseries/vas: Setup IRQ and fault handling")
Cc: Haren Myneni
Signed-off-by: Cédric Le Goater
---
arch/powerpc/platforms/pseries/vas.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc
This fixes a compile error with W=1.
Cc: Christophe Leroy
Signed-off-by: Cédric Le Goater
---
I don't think this is correct. Which file could we use ?
arch/powerpc/include/asm/unistd.h | 3 +++
arch/powerpc/kernel/audit.c | 1 -
2 files changed, 3 insertions(+), 1 deletion(-)
diff
This fixes a compile error with W=1.
Cc: Christophe Leroy
Signed-off-by: Cédric Le Goater
---
arch/powerpc/include/asm/syscalls.h | 31 +
1 file changed, 31 insertions(+)
diff --git a/arch/powerpc/include/asm/syscalls.h
b/arch/powerpc/include/asm/syscalls.h
index
This fixes a compile error with W=1.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/kvm/book3s.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kvm/book3s.h b/arch/powerpc/kvm/book3s.h
index 740e51def5a5..c08f93b7f523 100644
--- a/arch/powerpc/kvm/book3s.h
+++ b/arch/powerpc
;
^~~
cc1: all warnings being treated as errors
Cc: Christophe Leroy
Signed-off-by: Cédric Le Goater
---
Christophe, I think you had comments on this one ? Yes, I am being a bit lazy.
arch/powerpc/kernel/prom.c | 37 -
1 file changed, 20
On 8/7/21 9:20 AM, Cédric Le Goater wrote:
> On PowerVM, CPU-less nodes can be populated with hot-plugged CPUs at
> runtime. Today, the IPI is not created for such nodes, and hot-plugged
> CPUs use a bogus IPI, which leads to soft lockups.
>
> We can not directly allocate and
> I forgot to add that this version does break irqbalance anymore, since
... does not break ...
Sorry for the noise,
> Linux is not mapping interrupts of CPU-less nodes.
>
> Anyhow, irqbalance is now fixed :
>
>
>
y: Geetika Moolchandani
Cc: Srikar Dronamraju
Cc: Laurent Vivier
Signed-off-by: Cédric Le Goater
Message-Id: <20210629131542.743888-1-...@kaod.org>
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 35 +--
1 file changed, 24 insertions(+), 11 de
On 6/29/21 3:15 PM, Cédric Le Goater wrote:
> On PowerVM, CPU-less nodes can be populated with hot-plugged CPUs at
> runtime. Today, the IPI is not created for such nodes, and hot-plugged
> CPUs use a bogus IPI, which leads to soft lockups.
>
> We could create the nod
On 8/2/21 8:37 AM, Michael Ellerman wrote:
> Cédric Le Goater writes:
>> On PowerVM, CPU-less nodes can be populated with hot-plugged CPUs at
>> runtime. Today, the IPI is not created for such nodes, and hot-plugged
>> CPUs use a bogus IPI, which leads to soft lockups.
The XIVE interrupt controller on P10 can automatically save and
restore the state of the interrupt registers under the internal NVP
structure representing the VCPU. This saves a costly store/load in
guest entries and exits.
Thanks,
C.
Cédric Le Goater (2):
KVM: PPC: Book3S HV: XIVE: Add
Use it to hold platform specific features. P9 DD2 introduced
single-escalation support. P10 will add others.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/kvm/book3s_xive.h| 9 -
arch/powerpc/kvm/book3s_xive.c| 19 ++-
arch/powerpc/kvm
saves a costly store/load in guest entries and exits.
If OPAL advertises the "save & restore" feature in the device tree,
it should also have set the 'H' bit in the CAM line. Check that when
vCPUs are connected to their ICP in KVM before going any further.
Cc: Nicholas Piggin
Sig
There is no need to use the lockup detector ("noirqdebug") for IPIs.
The ipistorm benchmark measures a ~10% improvement on high systems
when this flag is set.
Cc: Thomas Gleixner
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xics/xics-common.c | 2 +-
arch/powerpc/s
el test robot
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/sysdev/xive/common.c
b/arch/powerpc/sysdev/xive/common.c
index f8ff558bc305..7bbb9bc83057 100644
--- a/arch/powerpc/sysdev/
The PowerNV and pSeries platforms now have support for both the XICS
and XIVE IRQ domains.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/platforms/powernv/pci-ioda.c | 4 +---
arch/powerpc/platforms/pseries/msi.c | 4
2 files changed, 1 insertion(+), 7 deletions(-)
diff --git
PCI MSIs now live in an MSI domain but the underlying calls, which
will EOI the interrupt in real mode, need an HW IRQ number mapped in
the XICS IRQ domain. Grab it there.
Cc: Alexey Kardashevskiy
Signed-off-by: Cédric Le Goater
---
arch/powerpc/kvm/book3s_hv.c | 12 ++--
1 file
The default domain of the PCI/MSIs is not the XIVE domain anymore. To
list the IRQ mappings under XMON and debugfs, query the IRQ data from
the low level XIVE domain.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xive/common.c | 11 +--
1 file changed, 5 insertions(+), 6
' driver.
Rewriting this driver to support MSI would be a waste of time.
Nevertheless, we can still remove the IRQ chip patch and set the IRQ
chip data instead. This is cleaner.
Cc: Frederic Barrat
Cc: Christophe Lombard
Signed-off-by: Cédric Le Goater
---
arch/powerpc/platforms/powernv/pci-ioda.c
The HW IRQ numbers generated by the PCI MSI layer can be quite large
on a pSeries machine when running under the IBM Hypervisor and they
appear as negative. Use '%lu' instead to show them correctly.
Cc: Thomas Gleixner
Signed-off-by: Cédric Le Goater
---
kernel/irq/irqdesc.c | 2 +-
kernel/irq
-by: Cédric Le Goater
---
arch/powerpc/kvm/book3s_xive.c | 3 ++-
kernel/irq/irqdomain.c | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index 434da541a20b..d30eb35cc7f0 100644
--- a/arch/powerpc/kvm
-off-by: Cédric Le Goater
---
arch/powerpc/include/asm/xics.h| 3 ++-
arch/powerpc/sysdev/xics/ics-native.c | 13 +---
arch/powerpc/sysdev/xics/ics-opal.c| 27 +
arch/powerpc/sysdev/xics/ics-rtas.c| 28 +-
arch/powerpc/sysdev
XICS doesn't have any state associated with the IRQ. The support is
straightforward and simpler than for XIVE.
Signed-off-by: Cédric Le Goater
---
arch/powerpc/sysdev/xics/xics-common.c | 41 ++
1 file changed, 41 insertions(+)
diff --git a/arch/powerpc/sysdev/xics/xics
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