Hi Reinette,
On 07/04/2021 00:42, Reinette Chatre wrote:
> On 4/6/2021 10:13 AM, James Morse wrote:
>> On 31/03/2021 22:35, Reinette Chatre wrote:
>>> On 3/12/2021 9:58 AM, James Morse wrote:
>>>> resctrl is the defacto Linux ABI for SoC resource partitio
Hi Reinette,
On 31/03/2021 22:36, Reinette Chatre wrote:
> On 3/12/2021 9:58 AM, James Morse wrote:
>> resctrl is the defacto Linux ABI for SoC resource partitioning features.
>> To support it on another architecture, it needs to be abstracted from
>> the features provided
Hi Babu,
On 06/04/2021 22:37, Babu Moger wrote:
> On 4/6/21 12:19 PM, James Morse wrote:
>> On 30/03/2021 21:36, Babu Moger wrote:
>>> On 3/12/21 11:58 AM, James Morse wrote:
>>>> This series re-folds the resctrl code so the CDP resources (L3CODE et al)
&
Hi Babu,
On 30/03/2021 21:36, Babu Moger wrote:
> On 3/12/21 11:58 AM, James Morse wrote:
>> This series re-folds the resctrl code so the CDP resources (L3CODE et al)
>> behaviour is all contained in the filesystem parts, with a minimum amount
>> of arch specific code.
&g
Hi Reinette,
On 31/03/2021 22:35, Reinette Chatre wrote:
> On 3/12/2021 9:58 AM, James Morse wrote:
>> resctrl is the defacto Linux ABI for SoC resource partitioning features.
>> To support it on another architecture, it needs to be abstracted from
>> the features provided
-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* rdt_get_cdp_config() is kept for its comment.
---
arch/x86/kernel/cpu/resctrl/core.c | 174 ++---
arch/x86/kernel/cpu/resctrl/internal.h | 4 -
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 122
configuration type
if cdp is enabled.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
Changes since v1:
* Expanded commit mesasge.
---
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 99 --
1 file changed, 14 insertions(+), 85 deletions(-)
diff --git a/arch/x86/kernel/cpu/resctrl
allocating and freeing the ctrl_val arrays. Add a helper to allocate
the ctrl_val array, that returns the value on the L2 or L3 resource
if it already exists. This gets removed once the resources are merged,
and there really is only one ctrl_val array.
Reviewed-by: Jamie Iles
Signed-off-by: James
on the staged configuration type. This makes the
static mult and offset parameters redundant.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c| 12
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 17 +++--
include/linux
on the changes it has made
to the ctrl_val array as this allows the hardware to be updated once for
a set of changes.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Removing the patch that moved the closid to the staged config means the
min/max and return from
of this is that the caches are reset twice, once
for CODE once for DATA.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c | 10 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 9 +
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git
to the index in the configuration array.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 5 ++--
arch/x86/kernel/cpu/resctrl/monitor.c | 2 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 35 +++
include/linux/resctrl.h
resource means it is enable
for all resources, as all resources would need to configure both
interpretations of the closid value.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Added prototype for resctrl_arch_set_cdp_enabled()
* s/Currently/Previously
truct need to be
specified per type configuration, and there can be one configuration of
each type staged.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Expanded commit message
* Removed explicit clearing of have_new_ctrl,
* Moved ARRAY_SIZE() trickery to a later patch
rdt_domain_reconfigure_cdp() infers whether CDP is enabled by
checking the alloc_capable and alloc_enabled flags of the data
resources.
Now that we have an explicit cdp_enabled, use that.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 8
in the staged_configuration array must be
used for each schema. Use the conf_type enum directly as an index.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Renamed max enum value CDP_NUM_TYPES
* Whitespace and parenthesis
* Missing word in the commit message
---
arch/x86
update_domains() merges the staged configuration changes into the
arch codes configuration array. Rename to make it clear its part of the
arch code interface to resctrl.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* The closid is no longer staged as from resctrl
format at all.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 16 ++---
arch/x86/kernel/cpu/resctrl/monitor.c | 6 +++-
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 43 ++-
include/linux/resctrl.h | 2
-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 4 ++--
arch/x86/kernel/cpu/resctrl/internal.h| 6 +++---
arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 8
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 4 ++--
4 files changed, 11 insertions(+), 11 deletions(-)
diff
-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* split from a larger patch
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 23 +--
arch/x86/kernel/cpu/resctrl/internal.h| 6 +++---
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 19
will generate two names
for one resource.
The filesystem code should calculate max_name_width for padding the
schemata file, move this to live with the code that will generate
the names.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1;
* Don't hardcode max_name_width
off-by: James Morse
---
Changes since v1:
* Rewrote commit message
* Whitespace fixes
* num_closid becomes u32 in all occurences to reduce surprises
---
arch/x86/kernel/cpu/resctrl/core.c | 5 +
arch/x86/kernel/cpu/resctrl/internal.h | 2 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 4 ++--
incl
' helper.
After the filesystem code is moved, rdtgroup_pseudo_locked_in_hierarchy()
remains part of the x86 specific hooks to support psuedo lock. This code
walks each domain, and still does this after the separate resources are
merged.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes
and type of configuration values for resctrl.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Renamed resctrl_all_schema list
* Used schemata_list as a prefix to make these easier to search for
* Added kerneldoc string
* Removed 'pending configuration' reference
()
These are changed to use the schema value instead.
schemata_list_create() sets this value, and reaches into the architecture
specific structure to get the value. This will eventually be replaced with
a helper.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Added missing
resctrl_schema.
Copying the value ensures there is no mismatch, but allows the filesystem
parts of resctrl to be modified to use the schema. Once the resources are
merged, the filesystem code can assign this value based on the schema
being created.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
means the type of the private pointers varies
between control and monitor info dirs.
If the flags are RF_MON_INFO, its a struct rdt_resource. If the
flags are RF_CTRL_INFO, its a struct resctrl_schema. Nothing in
res_common_files[] has both flags.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
into a new header file. resctrl code paths touching a 'hw'
struct indicates where an abstraction is needed.
Splitting this structure only moves types around, and should not lead
to any change in behaviour.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Tabs space
moves types around, and should not lead
to any change in behaviour.
Splitting rdt_domain up in a similar way happens in the next patch.
Reviewed-by: Jamie Iles
Signed-off-by: James Morse
---
Changes since v1:
* Tabs space and other whitespace
* Restored for_each_rdt_resource() calls in arch code
Thanks,
James Morse (24):
x86/resctrl: Split struct rdt_resource
x86/resctrl: Split struct rdt_domain
x86/resctrl: Add a separate schema list for resctrl
x86/resctrl: Pass the schema in info dir's private pointer
x86/resctrl: Label the resources with their configuration type
x86/resctrl
Hi Reinette,
On 17/11/2020 23:46, Reinette Chatre wrote:
> On 10/30/2020 9:11 AM, James Morse wrote:
>> Once the L2/L2CODE/L2DATA resources are merged, there may be two
>> configurations staged for one resource when CDP is enabled. The
>> closid should always be
Hi Reinette,
On 17/11/2020 23:28, Reinette Chatre wrote:
> On 10/30/2020 9:11 AM, James Morse wrote:
>> Arm's MPAM may have surprisingly large bitmaps for its cache
>> portions as the architecture allows up to 4K portions. The size
>> exposed via resctrl may not be the s
Hi Reinette,
On 17/11/2020 23:11, Reinette Chatre wrote:
> On 10/30/2020 9:11 AM, James Morse wrote:
>> Move the names used for the schemata file out of the resource and
>> into struct resctrl_schema. This allows one resource to have two
>> different names, based on the ot
Hi Reinette,
On 17/11/2020 22:52, Reinette Chatre wrote:
> On 10/30/2020 9:11 AM, James Morse wrote:
>> Now that resctrl has its own list of resources it is using, walk that
>> list instead of the architectures list. This means resctrl has somewhere
>> to keep schema propert
Hi Reinette,
On 17/11/2020 22:30, Reinette Chatre wrote:
> On 10/30/2020 9:11 AM, James Morse wrote:
>> Before the name for the schema can be generated, the type of the
>> configuration being applied to the resource needs to be known. Label
>> all the entries in rdt_reso
Hi Reinette,
On 17/11/2020 22:04, Reinette Chatre wrote:
> On 10/30/2020 9:11 AM, James Morse wrote:
>> resctrl_schema holds properties that vary with the style of configuration
>> that resctrl applies to a resource.
>>
>> Once the arch code has a single resource per c
changed to "info dir"?
Sure,
> On 10/30/2020 9:11 AM, James Morse wrote:
>> Moving properties that resctrl exposes to user-space into the core
>> 'fs' code, (e.g. the name of the schema), means some of the functions
>> that back the filesystem need the schema str
Hi Reinette
On 17/11/2020 21:29, Reinette Chatre wrote:
> On 10/30/2020 9:11 AM, James Morse wrote:
>> To support multiple architectures, the resctrl code needs to be split
>> into a 'fs' specific part in core code, and an arch-specific backend.
>>
>> It should be diff
Hi Reinette,
On 17/11/2020 19:20, Reinette Chatre wrote:
> On 10/30/2020 9:10 AM, James Morse wrote:
>> Splitting rdt_domain up in a similar way happens in the next patch.
>> No change in behaviour, this patch just moves types around.
>
> Please remove the "this p
Hi Reinette,
On 17/11/2020 19:57, Reinette Chatre wrote:
> On 10/30/2020 9:10 AM, James Morse wrote:
>> resctrl chooses whether to enable CDP, once it does, half the number
>> of closid are available. MPAM doesn't behave like this, an in-kernel user
>> of MPAM could be 'usi
Hi Dexuan,
On 05/02/2021 19:36, Dexuan Cui wrote:
>> From: Rafael J. Wysocki
>> Sent: Friday, February 5, 2021 5:06 AM
>> To: Dexuan Cui
>> Cc: linux-a...@vger.kernel.org; linux-kernel@vger.kernel.org;
>> linux-hyp...@vger.kernel.org; Michael Kelley
>> Subject: Re: How can a userspace program
Hi Pavel,
On 27/01/2021 17:27, Pavel Tatashin wrote:
> Enable MMU during kexec relocation in order to improve reboot performance.
>
> If kexec functionality is used for a fast system update, with a minimal
> downtime, the relocation of kernel + initramfs takes a significant portion
> of reboot.
e same way used to update the register when tasks are moved as
> part of resource group removal.
(as t->on_cpu is already used...)
Reviewed-by: James Morse
> diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
> index 68db7d
Hi Reinette, Fenghua,
On 03/12/2020 23:25, Reinette Chatre wrote:
> From: Fenghua Yu
>
> The code of setting the CPU on which a task is running in a CPU mask is
> moved into a couple of helpers. The new helper task_on_cpu() will be
> reused shortly.
> diff --git
Hi Steven, Catalin,
On 18/11/2020 16:01, Steven Price wrote:
> On 17/11/2020 16:07, Catalin Marinas wrote:
>> On Mon, Oct 26, 2020 at 03:57:27PM +, Steven Price wrote:
>>> diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
>>> index 19aacc7d64de..38fe25310ca1 100644
>>> ---
's needed to do the kfree())
> Check the validity of the move before getting anywhere near task_work
> callbacks.
This saves the kzalloc()/task_work_add() if it wasn't going to be necessary.
Reviewed-by: James Morse
Thanks,
James
ther CPU. It might get torn values, or multiple-reads get
different values.
The READ_ONCE/WRITE_ONCEry would have been easier to read as a separate patch
as you touch
all sites, and move/change some of them.
Regardless:
Reviewed-by: James Morse
I don't 'get' memory-ordering, so one curiosity belo
Hi Henry,
On 16/11/2020 21:11, Henry Willard wrote:
> On 11/11/20 10:11 AM, James Morse wrote:
>> On 06/11/2020 23:25, Henry Willard wrote:
>>> machine_shutdown() is called by kernel_kexec() to shutdown
>>> the non-boot CPUs prior to starting the new ker
Hi,
(sorry for the late response)
On 06/11/2020 18:46, Nicolas Saenz Julienne wrote:
> On Thu, 2020-11-05 at 16:11 +0000, James Morse wrote:>> We also depend on
> this when skipping the checksum code in purgatory, which can be
>> exceedingly slow.
>
> This one I don't f
Hi Reinette,
On 16/11/2020 17:54, Reinette Chatre wrote:
> On 10/30/2020 9:10 AM, James Morse wrote:
>> MPAM has an equivalent feature to CDP, but its a property of the CPU,
>> not the cache. Resctrl needs to have x86's odd/even behaviour, as that
>> its the ABI, but th
Hi Henry,
On 06/11/2020 23:25, Henry Willard wrote:
> machine_shutdown() is called by kernel_kexec() to shutdown
> the non-boot CPUs prior to starting the new kernel. The
> implementation of machine_shutdown() varies by architecture.
> Many make an interprocessor call, such as smp_send_stop(),
>
Hi Jamie,
Thanks for taking a look,
On 10/11/2020 11:39, Jamie Iles wrote:
> On Fri, Oct 30, 2020 at 04:11:06PM +0000, James Morse wrote:
>> Move the names used for the schemata file out of the resource and
>> into struct resctrl_schema. This allows one resource to have two
>
Hi Shiju, Jonathan,
On 05/11/2020 17:42, Shiju Jose wrote:
> From: Jonathan Cameron
>
> According to the following sections of the PPTT definition in the
> ACPI specification(V6.3), a high level cache node( For example L2 cache)
> could be represented simultaneously both in the private resource
Hi Shiju,
On 05/11/2020 17:42, Shiju Jose wrote:
> For the firmware-first error handling on ARM64 hardware platforms,
> CPU cache corrected error count is not recorded.
> Create an CPU EDAC device and device blocks for the CPU caches
> for this purpose. The EDAC device blocks are created based
Hi!
On 03/11/2020 17:31, Nicolas Saenz Julienne wrote:
> crashkernel might reserve memory located in ZONE_DMA. We plan to delay
> ZONE_DMA's initialization after unflattening the devicetree and ACPI's
> boot table initialization, so move it later in the boot process.
> Specifically into
.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 99 --
1 file changed, 14 insertions(+), 85 deletions(-)
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 162e415d5d09..0d561679f7e8 100644
--- a/arch
configuration. Enabling CDP for one resource means all resources
see the different closid values.
Signed-off-by: James Morse
---
It may be possible for MPAM to apply the same 'L3' configuration to
the two closid that are in use, giving the illusion that CDP is enabled
for some resources, but disabled
to the index in the configuration array.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 5 ++--
arch/x86/kernel/cpu/resctrl/monitor.c | 2 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 35 +++
include/linux/resctrl.h | 3 +-
4 files
for each schema. Use the conf_type enum directly as an index.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 16 ++--
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 5 +++--
include/linux/resctrl.h | 4 +++-
3 files changed, 16 insertions
at all.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 16 ++---
arch/x86/kernel/cpu/resctrl/monitor.c | 6 +++-
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 43 ++-
include/linux/resctrl.h | 2 ++
4 files changed, 37
struct pseudo_lock_region points to the rdt_resource. Once the
resources are merged, this won't be unique. The resource name
is moving into the schema, so that eventually resctrl can generate
it.
Change pseudo_lock_region's rdt_resource pointer for a schema pointer.
Signed-off-by: James Morse
configuration type. This makes the
static mult and offset parameters set by the arch code redundant.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c| 12
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 17 +++--
include/linux/resctrl.h
into apply_config()
so that odd/even slots in the ctrlval array are used.
This makes it possible to merge the resources.
In future, the arithmetic will be based on the style of the configuration,
not the resource.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c| 15
, this is now resctrl's
problem.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c| 9 ++---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 10 +++---
arch/x86/kernel/cpu/resctrl/internal.h| 2 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 17
array, and updates the hardware, make it part of the
arch code interface.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 40 +--
arch/x86/kernel/cpu/resctrl/internal.h| 6 ++--
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 2 +-
include/linux
the closid from the same place, so they pair up.
Move the closid to be a staged parameter.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 10 ++
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 6 --
include/linux/resctrl.h | 2 ++
3 files
rdt_domain_reconfigure_cdp() infers whether CDP is enabled by
checking the alloc_capable and alloc_enabled flags of the data
resources.
Now that there is an explicit cdp_enabled, use that.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 8 +---
1 file changed, 5
element in the array, but
eventually resctrl will use the array slots for CODE/DATA/BOTH to detect
a duplicate schema being written.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 49 ---
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 22
on the
L2 or L3 resource if it already exists. This gets removed once the
resources are merged, and there really is only one ctrlval array.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c | 79 +++---
1 file changed, 72 insertions(+), 7 deletions(-)
diff
, which will then create the separate CODE/DATA schema
for its ABI.
Add a helper to add schema with a the CDP suffix if CDP is enabled.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c | 193 ++---
arch/x86/kernel/cpu/resctrl/internal.h | 4 -
arch/x86/kernel
of this is that the caches are reset twice, once
for CODE once for DATA.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c | 10 +-
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 10 ++
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu
the fs code. Eventually the fs code will generate pairs of CODE/DATA if
the platform supports CDP for this resource.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c | 7 +++
arch/x86/kernel/cpu/resctrl/internal.h | 1 +
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 1 +
include
ady adjusted for CDP.
Once the CODE/DATA/BOTH resources are merged, resctrl can make the
adjustment when copying the value to the schema's num_closid.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c| 5 +
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 9 +++--
arch/
rdtgroup_schemata_show() to walk the schema instead.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 13 -
arch/x86/kernel/cpu/resctrl/rdtgroup.c| 11 +--
include/linux/resctrl.h | 2 ++
3 files changed, 15 insertions(+), 11
paths touching a 'hw'
struct indicates where an abstraction is needed.
No change in behaviour, this patch just moves types around.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c| 32 +++---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 10 --
arch/x86
property, like the conf_type. Switch these to
walk the schema list. Schema were only created for alloc_enabled
resources so these two lists are currently equivalent.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 38 ++-
arch/x86/kernel/cpu/resctrl
varies
between control and monitor info dirs.
If the flags are RF_MON_INFO, its a struct rdt_resource. If the
flags are RF_CTRL_INFO, its a struct resctrl_schema. Nothing in
res_common_files[] has both flags.
Signed-off-by: James Morse
---
Fake schema for monitors may simplify this if anyone
patch.
No change in behaviour, this patch just moves types around.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/core.c| 258 --
arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 14 +-
arch/x86/kernel/cpu/resctrl/internal.h| 138 +++-
arch/x86
and pending configuration values for resctrl.
Signed-off-by: James Morse
---
arch/x86/kernel/cpu/resctrl/internal.h | 1 +
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 43 +-
include/linux/resctrl.h| 9 ++
3 files changed, 52 insertions(+), 1 deletion
Thanks,
James Morse (24):
x86/resctrl: Split struct rdt_resource
x86/resctrl: Split struct rdt_domain
x86/resctrl: Add resctrl_arch_get_num_closid()
x86/resctrl: Add a separate schema list for resctrl
x86/resctrl: Pass the schema in resdir's private pointer
x86/resctrl: Store the eff
Hi Neeraj,
On 21/10/2020 18:31, Neeraj Upadhyay wrote:
> On 10/16/2020 9:57 PM, James Morse wrote:
>> On 15/10/2020 07:07, Neeraj Upadhyay wrote:
>>> 1. Looks like interrupt bind interface (SDEI_1_0_FN_SDEI_INTERRUPT_BIND) is
>>> not available
>>> for
Hi Neeraj,
On 15/10/2020 07:07, Neeraj Upadhyay wrote:
> 1. Looks like interrupt bind interface (SDEI_1_0_FN_SDEI_INTERRUPT_BIND) is
> not available
> for clients to use; can you please share information on
> why it is not provided?
There is no compelling use-case for it, and its very complex
Hi Shiju,
On 06/10/2020 17:13, Shiju Jose wrote:
[...]
> Please find following pseudo code we added for the kernel side to make sure
> we correctly understand your suggestions.
>
> 1. Create edac device and edac device sysfs entries for the online CPU caches.
> /drivers/edac/edac_device.c
>
Hi Andre,
On 06/10/2020 21:18, Andre Przywara wrote:
> The ARM architected TRNG firmware interface, described in ARM spec
> DEN0098[1], defines an ARM SMCCC based interface to a true random number
> generator, provided by firmware.
> This can be discovered via the SMCCC >=v1.1 interface, and
rmal
looks like?
I can't see how a reasonable prediction can be made from just one machine's
behaviour
since boot. These are corrected errors, nothing has gone wrong.
>> Open question from James with my reply to it:
>>
>> On Thu, Oct 01, 2020 at 06:16:03PM +0100, James Morse wr
Hi guys,
On 17/09/2020 09:40, Borislav Petkov wrote:
> On Thu, Sep 10, 2020 at 03:29:56PM +, Shiju Jose wrote:
> You can't know what exactly you wanna do if you don't have a use case
> you're trying to address.
>
>> According to the ARM Processor CPER definition the error types
>> reported
Hi Tanxiaofei,
(sorry for the late reply)
On 28/09/2020 03:02, Xiaofei Tan wrote:
> After the commit 8fcc4ae6faf8 ("arm64: acpi: Make apei_claim_sea()
> synchronise with APEI's irq work") applied, do_sea() return directly
> for user-mode if apei_claim_sea() handled any error record. Therefore,
>
Hi Marc,
(CC: +Jon)
On 01/09/2020 15:43, Marc Zyngier wrote:
> Change the way we deal with GIC SGIs by turning them into proper
> IRQs, and calling into the arch code to register the interrupt range
> instead of a callback.
Your comment "This only works because we don't nest SGIs..." on this
Hi Zhang,
On 12/08/2020 12:09, Liguang Zhang wrote:
> Function arm64_is_fatal_ras_serror() is always called after
> arm64_is_ras_serror(), so we should remove some needless
> arm64_is_ras_serror() call in function arm64_ras_serror_get_severity().
> diff --git a/arch/arm64/include/asm/traps.h
Hi Alison,
On 25/08/2020 03:31, Alison Wang wrote:
>> On 09/07/2020 09:22, Alison Wang wrote:
>>> Add error detection for A53 and A72 cores. Hardware error injection is
>>> supported on A53. Software error injection is supported on both.
>>
>
>>
>> As we can't safely write to these registers
Hi Alison,
On 09/07/2020 09:22, Alison Wang wrote:
> Add error detection for A53 and A72 cores. Hardware error injection is
> supported on A53. Software error injection is supported on both.
> For hardware error injection on A53 to work, proper access to
> L2ACTLR_EL1, CPUACTLR_EL1 needs to be
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: 5df3ca9334d5603e4afbb95953d0affb37dcf86b
Gitweb:
https://git.kernel.org/tip/5df3ca9334d5603e4afbb95953d0affb37dcf86b
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:27
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: 709c4362725abb5fa1e36fd94893a9b0d049df82
Gitweb:
https://git.kernel.org/tip/709c4362725abb5fa1e36fd94893a9b0d049df82
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:29
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: e89f85b9171665c917dca59920884f3d4fe0b1ef
Gitweb:
https://git.kernel.org/tip/e89f85b9171665c917dca59920884f3d4fe0b1ef
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:21
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: e6b2fac36fcc0b73cbef063d700a9841850e37a0
Gitweb:
https://git.kernel.org/tip/e6b2fac36fcc0b73cbef063d700a9841850e37a0
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:25
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: abe8f12b44250d02937665033a8b750c1bfeb26e
Gitweb:
https://git.kernel.org/tip/abe8f12b44250d02937665033a8b750c1bfeb26e
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:20
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: ae0fbedd2a18cd82a2c0c5605a0a60865bc54576
Gitweb:
https://git.kernel.org/tip/ae0fbedd2a18cd82a2c0c5605a0a60865bc54576
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:22
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: f995801ba3a0660cb352c8beb794379c82781ca3
Gitweb:
https://git.kernel.org/tip/f995801ba3a0660cb352c8beb794379c82781ca3
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:23
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: a21a4391f20c0ab45db452e22bc3e8afe8b36e46
Gitweb:
https://git.kernel.org/tip/a21a4391f20c0ab45db452e22bc3e8afe8b36e46
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:24
Committer
The following commit has been merged into the x86/cache branch of tip:
Commit-ID: 41215b7947f1b1b86fd77a7bebd2320599aea7bd
Gitweb:
https://git.kernel.org/tip/41215b7947f1b1b86fd77a7bebd2320599aea7bd
Author:James Morse
AuthorDate:Wed, 08 Jul 2020 16:39:26
Committer
1 - 100 of 1082 matches
Mail list logo
