(Missed cc'ing Cc Peter in the original posting)
On Fri, Apr 02, 2021 at 11:07:54AM +0530, Gautham R. Shenoy wrote:
> From: "Gautham R. Shenoy"
>
> On POWER10 systems, the L2 cache is at the SMT4 small core level. The
> following commits ensure that L2 cache gets correctly discovered and
> the L
Excerpts from Alexey Kardashevskiy's message of April 2, 2021 2:36 pm:
>
>
> On 01/04/2021 21:35, Nicholas Piggin wrote:
>> Excerpts from Alexey Kardashevskiy's message of April 1, 2021 3:30 pm:
>>>
>>>
>>> On 3/23/21 12:02 PM, Nicholas Piggin wrote:
Almost all logic is moved to C, by introd
Excerpts from Cédric Le Goater's message of April 2, 2021 4:10 pm:
> On 4/2/21 4:41 AM, Nicholas Piggin wrote:
>> Starting with ISA v3.1, LPCR[AIL] no longer controls the interrupt
>> mode for HV=1 interrupts. Instead, a new LPCR[HAIL] bit is defined
>> which behaves like AIL=3 for HV interrupts wh
Excerpts from Nicholas Piggin's message of April 2, 2021 1:03 am:
> Decrementer updates must always check for new irq work to avoid an
> irq work decrementer interrupt being lost.
>
> Add an API for this in the timer code so callers don't have to care
> about details.
Oh I forgot to update the ch
On 4/1/21 2:50 PM, Nicholas Piggin wrote:
> Excerpts from Cédric Le Goater's message of April 1, 2021 12:45 am:
>> ipistorm [*] can be used to benchmark the raw interrupt rate of an
>> interrupt controller by measuring the number of IPIs a system can
>> sustain. When applied to the XIVE interrupt c
> I gave the patch below a try and we are reaching the same results,
> even better. The simplest solution is always the best. Nick, you
> should send that single patch.
FYI, here are results in a KVM guests with pinned vCPUs.
* P9 DD2.2 - 2s * 64 threads - KVM guest :
Hi Laurent,
Laurent Dufour writes:
> When a CPU is hot added, the CPU ids are taken from the available mask from
> the lower possible set. If that set of values was previously used for CPU
> attached to a different node, this seems to application like if these CPUs
> have migrated from a node to
Thanks Nathan for reviewing this.
Le 02/04/2021 à 15:34, Nathan Lynch a écrit :
Hi Laurent,
Laurent Dufour writes:
When a CPU is hot added, the CPU ids are taken from the available mask from
the lower possible set. If that set of values was previously used for CPU
attached to a different node
This patch uses the new cmdline building function to
concatenate the of provided cmdline with built-in parts
based on compile-time options.
Signed-off-by: Christophe Leroy
---
drivers/of/fdt.c | 23 ---
1 file changed, 4 insertions(+), 19 deletions(-)
diff --git a/drivers/of
The purpose of this series is to improve and enhance the
handling of kernel boot arguments.
Current situation is that most if not all architectures are using
similar options to do some manupulation on command line arguments:
- Prepend built-in arguments in front of bootloader provided arguments
-
During boot, x86 uses EFI driver. That driver is also used
by ARM.
In order to refactor the command line processing in that driver
in a following patch, rename CONFIG_CMDLINE_OVERRIDE by
CONFIG_CMDLINE_FORCE on the x86 in order to be similar
to ARM (and most other architectures).
Signed-off-by: C
This code provides architectures with a way to build command line
based on what is built in the kernel and what is handed over by the
bootloader, based on selected compile-time options.
Signed-off-by: Christophe Leroy
---
v3:
- Addressed comments from Will
- Added capability to have src == dst
v4
Use cmdline building function in EFI.
EFI cannot use pr_err() and doesn't have a .init.data section,
so use the __cmdline_build() internal function and provides
both a source and a destination.
Remove the handling of too long command lines as it is handled
by the generic CMDLINE.
Signed-off-by:
Most architectures have similar boot command line manipulation
options. This patchs adds the definition in init/Kconfig, gated by
CONFIG_HAVE_CMDLINE that the architectures can select to use them.
CONFIG_CMDLINE_EXTEND is understood differently by architectures.
For some of them it appends built-i
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
v4:
- Removed dependency to ATAGS
- Removed the message when forcing
---
arch/arm/Kconfig | 38 +--
arch/arm/kernel/atags_parse.c | 13 +++-
2 files changed
This updates the powerpc code to use the new cmdline building function.
The cmdline_build() defines a temporary string in __initdata.
powerpc uses __prombss instead at the moment, so we must
call cmdline_build() with destination different from the source
to allow GCC to optimise the temporary stri
From: Daniel Walker
There's only two users of strcpy and one is the command
line handling. The generic command line handling uses strlcpy
and it makes sense to convert this one other user to strlcpy to
keep prom_init size consistent.
Cc: xe-linux-exter...@cisco.com
Signed-off-by: Daniel Walker
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/arm64/Kconfig | 33 +-
arch/arm64/kernel/idreg-override.c | 9
2 files changed, 5 insertions(+), 37 deletions(-)
diff --git a/arch/arm64/Kconfig b/ar
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/hexagon/Kconfig| 11 +--
arch/hexagon/kernel/setup.c | 10 ++
2 files changed, 3 insertions(+), 18 deletions(-)
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 44a4
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/microblaze/Kconfig | 24 +---
arch/microblaze/configs/mmu_defconfig | 2 +-
arch/microblaze/kernel/head.S | 4 ++--
3 files changed, 4 insertions(+), 26 deletio
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/openrisc/Kconfig | 10 +-
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 591acc5990dc..ca1d0f18fe16 100644
--- a/arch/openrisc/Kco
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
v4: Added missing selection of CONFIG_GENERIC_CMDLINE in Kconfig
---
arch/nios2/Kconfig| 25 ++---
arch/nios2/kernel/setup.c | 13 -
2 files changed, 6 insertions(+), 32
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
v4: Remove the message when forcing
---
arch/riscv/Kconfig| 44 +--
arch/riscv/kernel/setup.c | 7 +++
2 files changed, 4 insertions(+), 47 deletions(-)
diff -
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
v4: Restore the removed 'endmenu' in Kconfig
---
arch/sh/Kconfig | 28 +
arch/sh/configs/ap325rxa_defconfig | 2 +-
arch/sh/configs/dreamcast_defconfig
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/sparc/Kconfig | 18 +-
arch/sparc/prom/bootstr_64.c | 2 +-
2 files changed, 2 insertions(+), 18 deletions(-)
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 164a525
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/xtensa/Kconfig | 15 +--
arch/xtensa/configs/audio_kc705_defconfig | 1 -
arch/xtensa/configs/common_defconfig| 1 -
arch/xtensa/configs/generic_kc705_defco
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/x86/Kconfig| 45 ++---
arch/x86/kernel/setup.c | 17 ++--
2 files changed, 4 insertions(+), 58 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x8
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/mips/Kconfig | 1 +
arch/mips/Kconfig.debug | 44 ---
arch/mips/configs/ar7_defconfig | 1 -
arch/mips/configs/bcm47xx_defconfig
All architectures providing CONFIG_CMDLINE_EXTEND
are now converted to GENERIC_CMDLINE.
This configuration item is not used anymore, drop it.
Signed-off-by: Christophe Leroy
---
include/linux/cmdline.h | 2 +-
init/Kconfig| 6 --
2 files changed, 1 insertion(+), 7 deletions(-)
Le 26/03/2021 à 16:47, Rob Herring a écrit :
On Fri, Mar 26, 2021 at 7:44 AM Christophe Leroy
wrote:
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/arm/Kconfig | 38 +--
arch/arm/kernel/atags_pars
Le 26/03/2021 à 16:04, Rob Herring a écrit :
On Fri, Mar 26, 2021 at 7:44 AM Christophe Leroy
wrote:
The purpose of this series is to improve and enhance the
handling of kernel boot arguments.
It is first focussed on powerpc but also extends the capability
for other arches.
This is based
Le 26/03/2021 à 16:26, Rob Herring a écrit :
On Fri, Mar 26, 2021 at 8:20 AM Christophe Leroy
wrote:
Le 26/03/2021 à 15:08, Andreas Schwab a écrit :
On Mär 26 2021, Christophe Leroy wrote:
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index f8f15332caa2..e7c91ee478
Le 26/03/2021 à 16:42, Rob Herring a écrit :
On Fri, Mar 26, 2021 at 7:44 AM Christophe Leroy
wrote:
This code provides architectures with a way to build command line
based on what is built in the kernel and what is handed over by the
bootloader, based on selected compile-time options.
No
Le 26/03/2021 à 16:47, Rob Herring a écrit :
On Fri, Mar 26, 2021 at 7:44 AM Christophe Leroy
wrote:
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
arch/arm/Kconfig | 38 +--
arch/arm/kernel/atags_pars
documented in
https://git-scm.com/docs/git-format-patch]
url:
https://github.com/0day-ci/linux/commits/Nicholas-Piggin/KVM-PPC-Book3S-C-ify-the-P9-entry-exit-code/20210401-232743
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc64-randconfig-s03
Le 30/03/2021 à 19:27, Daniel Walker a écrit :
On Fri, Mar 26, 2021 at 01:44:48PM +, Christophe Leroy wrote:
This code provides architectures with a way to build command line
based on what is built in the kernel and what is handed over by the
bootloader, based on selected compile-time opt
Le 29/03/2021 à 03:35, Tan, Ley Foon a écrit :
-Original Message-
From: Christophe Leroy
Sent: Friday, March 26, 2021 9:45 PM
To: w...@kernel.org; danie...@cisco.com; r...@kernel.org;
dan...@gimpelevich.san-francisco.ca.us
Cc: linux-a...@vger.kernel.org; devicet...@vger.kernel.org;
Le 26/03/2021 à 14:44, Christophe Leroy a écrit :
This converts the architecture to GENERIC_CMDLINE.
Signed-off-by: Christophe Leroy
---
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index e798e55915c2..fab84f62448c 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -16,6 +16,7 @@ con
On 4/1/21 5:03 PM, Nicholas Piggin wrote:
> Commit f3c18e9342a44 ("KVM: PPC: Book3S HV: Use XICS hypercalls when
> running as a nested hypervisor") added nested HV tests in XICS
> hypercalls, but not all are required.
>
> * icp_eoi is only called by kvmppc_deliver_irq_passthru which is only
> ca
Laurent Dufour writes:
> Le 02/04/2021 à 15:34, Nathan Lynch a écrit :
>> Laurent Dufour writes:
>>> When a CPU is hot added, the CPU ids are taken from the available mask from
>>> the lower possible set. If that set of values was previously used for CPU
>>> attached to a different node, this see
Le 30/03/2021 à 19:56, Daniel Walker a écrit :
This code allows architectures to use a generic builtin command line.
The state of the builtin command line options across architecture is
diverse. MIPS and X86 once has similar systems, then mips added some
options to allow extending the command
Le 30/03/2021 à 19:56, Daniel Walker a écrit :
It looks like there's some seepage of cmdline stuff into
the generic device tree code. This conflicts with the
generic cmdline implementation so I remove it in the case
when that's enabled.
Cc: xe-linux-exter...@cisco.com
Signed-off-by: Ruslan Ru
Le 30/03/2021 à 19:56, Daniel Walker a écrit :
There's only two users of strcpy and one is the command
line handling. The generic command line handling uses strlcpy
and it makes sense to convert this one other user to strlcpy to
keep prom_init size consistent.
Cc: xe-linux-exter...@cisco.com
Le 30/03/2021 à 19:56, Daniel Walker a écrit :
This updates the powerpc code to use the CONFIG_GENERIC_CMDLINE
option.
This includes a scripted mass convert of the config files to use
the new generic cmdline. There is a bit of a trim effect here.
It would seems that some of the config haven't
Le 30/03/2021 à 19:57, Daniel Walker a écrit :
This adds code to handle the generic command line changes.
The efi code appears that it doesn't benefit as much from this design
as it could.
For example, if you had a prepend command line with "nokaslr" then
you might be helpful to re-enable it
umented in
https://git-scm.com/docs/git-format-patch]
url:
https://github.com/0day-ci/linux/commits/Nicholas-Piggin/KVM-PPC-Book3S-C-ify-the-P9-entry-exit-code/20210401-232743
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc64-randconfig-r033-20210402 (a
Nicholas Piggin writes:
> When an interrupt is taken, the SRR registers are set to return to
> where it left off. Unless they are modified in the meantime, or the
> return address or MSR are modified, there is no need to reload these
> registers when returning from interrupt.
>
> Introduce per-CPU
I wanted to build the fsl dts in my machine and found that
the dtb have not extra space,so uboot will cause about
FDT_ERR_NOSPACE issue.
Signed-off-by: Youlin Song
---
arch/powerpc/boot/dts/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/boot/dts/Makefile b/arch/powerpc
Nicholas Piggin writes:
> diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
> index ccf913cedd29..b466b3e1bb3f 100644
> --- a/arch/powerpc/kernel/entry_64.S
> +++ b/arch/powerpc/kernel/entry_64.S
> @@ -64,6 +64,30 @@ exception_marker:
> .section".text"
>
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