From: Ira Weiny
Previously this was submitted to convert to zero_user()[1]. zero_user() is not
the same as memzero_user() and in fact some zero_user() calls may be better off
as memzero_user(). Regardless it was incorrect to convert btrfs to
zero_user().
This series corrects this by lifting
From: Ira Weiny
There are many places where kmap/memset/kunmap patterns occur.
Use the newly lifted memzero_page() to eliminate direct uses of kmap and
leverage the new core functions use of kmap_local_page().
The development of this patch was aided by the following coccinelle
script
From: Ira Weiny
memzero_page() can replace the kmap/memset/kunmap pattern in other
places in the code. While zero_user() has the same interface it is not
the same call and its use should be limited and some of those calls may
be better converted from zero_user() to memzero_page().[1] But that
From: Ira Weiny
The memset() does not need to be performed atomically. Use
kmap_local_page() which will improved performance for this call.
Cc: Chaitanya Kulkarni
Cc: David Sterba
Signed-off-by: Ira Weiny
---
include/linux/highmem.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions
On Wed, Mar 10, 2021 at 03:58:36PM -0800, Andrew Morton wrote:
> On Tue, 9 Mar 2021 13:21:34 -0800 ira.we...@intel.com wrote:
>
> > Previously this was submitted to convert to zero_user()[1]. zero_user() is
> > not
> > the same as memzero_user() and in fact some zero_user() calls may be better
ier to review and understand
the flow
- Link to v1:
https://lore.kernel.org/r/20240324-dcd-type2-upstream-v1-0-b7b00d623...@intel.com
- Link to v2:
https://lore.kernel.org/all/20240816-dcd-type2-upstream-v2-0-20189a10a...@intel.com/
---
Ira Weiny (11):
range: Add range_overlaps(
Thumshirn
Reviewed-by: Fan Ni
Reviewed-by: Dave Jiang
Reviewed-by: Jonathan Cameron
Signed-off-by: Ira Weiny
[1]
https://lore.kernel.org/all/65949f79ef908_8dc6829...@dwillia2-xfh.jf.intel.com.notmuch/
---
fs/btrfs/ordered-data.c | 10 +-
include/linux/range.h | 7 +++
2 files
list)
Link:
https://lore.kernel.org/all/663922b475e50_d54d729...@dwillia2-xfh.jf.intel.com.notmuch/
[1]
Suggested-by: "Dan Williams"
Signed-off-by: Ira Weiny
---
Documentation/core-api/printk-formats.rst | 14
lib/vsprintf.c| 37 ++
The device DAX structure is being enhanced to track additional DCD
information.
The current range tuple was not fully documented. Document it prior to
adding information for DC.
Suggested-by: Jonathan Cameron
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: move to start of series
ed-by: Jonathan Cameron
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: keep tags for early simple patch]
[Davidlohr, Jonathan, djiang: move to beginning of series]
[Dave feel free to pick this up if you like]
---
drivers/cxl/pci.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
Release DC
Signed-off-by: Navneet Singh
Reviewed-by: Jonathan Cameron
Reviewed-by: Fan Ni
Reviewed-by: Dave Jiang
Reviewed-by: Davidlohr Bueso
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: Keep tags for this early simple patch]
[Davidlohr: update commit message
: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[Li, Ming: Fix bug in total_bytes calculation]
[iweiny: update commit message]
[Jonathan: fix formatting]
[Jonathan: Define block line size]
[Jonathan/Fan: use regions returned field instead of macro in get config]
constructing regions with decoders which have been flagged as dead.
Suggested-by: Jonathan Cameron
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: rebase]
[Jonathan: remove dead code]
[Jonathan: clarify commit message]
---
drivers/cxl/core
specification r3.1.
Define the new modes and helper functions required to make the
association between these new modes.
Reviewed-by: Jonathan Cameron
Reviewed-by: Fan Ni
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: keep tags on simple patch
storage of a
single skip resource in the xarray.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[Jonathan: Use an example only mapping 1/2 of DC1]
[iweiny: Update cover letter]
[iweiny: Fix 0day bugs
https://lore.kernel.org/all/202408090138
From: Navneet Singh
Endpoint decoder mode is used to represent the partition the decoder
points to such as ram or pmem.
Expand the mode to allow a decoder to point to a specific DC partition
(Region).
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
From: Navneet Singh
To properly configure CXL regions on Dynamic Capacity Devices (DCD),
user space will need to know the details of the DC partitions available.
Expose dynamic capacity capabilities through sysfs.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira
to be used in subsequent DC code.
Suggested-by: Fan Ni
Signed-off-by: Ira Weiny
---
drivers/cxl/core/region.c | 28 +++-
1 file changed, 11 insertions(+), 17 deletions(-)
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index 650fe33f2ed4..f85b26b39b2f
preparation for
separate DCD interrupts configuration.
Signed-off-by: Ira Weiny
---
drivers/cxl/pci.c | 24
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
index f7f03599bc83..17bea49bbf4d 100644
--- a/drivers/cxl/pci.c
.
Reviewed-by: Dave Jiang
Reviewed-by: Jonathan Cameron
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: reword commit message]
[iweiny: keep review tags on simple patch]
---
drivers/cxl/pci.c | 23 ---
1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/cxl/pci.c b
devices on sparse
regions.
Interleaving is deferred for now. Add checks.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[Fan: use single function for dc region store]
[djiang: avoid setting dev_size twice]
[djbw: Check DCD support and interleave
decoder.
Return the endpoint decoder found to be used in subsequent DCD code.
Signed-off-by: Ira Weiny
---
drivers/cxl/core/core.h | 6 --
drivers/cxl/core/mbox.c | 2 +-
drivers/cxl/core/memdev.c | 4 ++--
drivers/cxl/core/region.c | 8 +++-
4 files changed, 14 insertions(+), 6
ol of
memory events.
Configure DCD event log interrupts on devices supporting dynamic
capacity. Disable DCD if interrupts are not supported.
Care is taken to preserve the interrupt policy set by the FW if FW first
has been selected by the BIOS.
Signed-off-by: Navneet Singh
Co-developed-by: Ira
CD events and create region devices.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: combine this with the extent surface patches to better show the
lifetime extent objects in review]
[iweiny: clean up commit message.]
[iweiny: move
ce for
the dax ranges. Future patches will use the same algorithm with
individual extent resources as the parent.
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: Rebase on new DAX region locking]
[iweiny: Reword commit message]
[iweiny: Drop reviews]
---
dr
/dax_regionX/extentX.Y/offset
/sys/bus/cxl/devices/dax_regionX/extentX.Y/length
/sys/bus/cxl/devices/dax_regionX/extentX.Y/tag
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: split this out]
[Jonathan: add documentation for
such that it can manage the hardware
appropriately.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: patch reorder]
[iweiny: move hunks from other patches to clarify code changes and
add/release flows WRT dax regions]
[iweiny: use %par
the driver are read during driver load.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: Leverage the new add path from the event processing code such
that the adding and surfacing of extents flows through the same
code
From: Navneet Singh
CXL rev 3.1 section 8.2.9.2.1 adds the Dynamic Capacity Event Records.
User space can use trace events for debugging of DC capacity changes.
Add DC trace points to the trace log.
Signed-off-by: Navneet Singh
Signed-off-by: Ira Weiny
---
Changes:
[Alison: Update commit
: Ira Weiny
---
Changes:
[iweiny: rebase]
---
tools/testing/cxl/test/mem.c | 278 ++-
1 file changed, 171 insertions(+), 107 deletions(-)
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index 129f179b0ac5..674fc7f086cd 100644
--- a
memory data. Add
sysfs entries on the mock device to inject and delete extents.
The inject format is :::
The delete format is :
Directly call the event irq callback to simulate irqs to process the
test extents.
Add DC mailbox commands to the CEL and implement those commands.
Signed-off-by: Ira
Petr Mladek wrote:
> On Fri 2024-08-16 09:44:10, Ira Weiny wrote:
> > The use of struct range in the CXL subsystem is growing. In particular,
> > the addition of Dynamic Capacity devices uses struct range in a number
> > of places which are reported in debug and error mess
Fan Ni wrote:
> On Fri, Aug 16, 2024 at 02:45:47PM -0700, Dave Jiang wrote:
> >
> > > +
> > > +/**
> > > + * cxl_dev_dynamic_capacity_identify() - Reads the dynamic capacity
> > > + *information from the device.
> > > + * @mds: The memory device state
> > >
Fan Ni wrote:
> On Fri, Aug 16, 2024 at 02:45:47PM -0700, Dave Jiang wrote:
[snip]
> > > +
> > > +/**
> > > + * cxl_dev_dynamic_capacity_identify() - Reads the dynamic capacity
> > > + *information from the device.
> > > + * @mds: The memory device state
>
Dave Jiang wrote:
>
>
> On 8/16/24 7:44 AM, ira.we...@intel.com wrote:
> > From: Navneet Singh
> >
[snip]
> > +static int dc_mode_to_region_index(enum cxl_decoder_mode mode)
> > +{
> > + return mode - CXL_DECODER_DC0;
> > +}
> > +
> > +static int cxl_request_skip(struct cxl_endpoint_decoder
gt; > Expose dynamic capacity capabilities through sysfs.
> >
> > Signed-off-by: Navneet Singh
> > Co-developed-by: Ira Weiny
> > Signed-off-by: Ira Weiny
> >
> > ---
> > Changes:
> > [iweiny: remove review tags]
> > [Davidlohr/Fan/Jona
Dave Jiang wrote:
>
>
> On 8/16/24 7:44 AM, ira.we...@intel.com wrote:
> > From: Navneet Singh
> >
[snip]
> >
> > Process DCD events and create region devices.
> >
> > Signed-off-by: Navneet Singh
> > Co-developed-by: Ira Weiny
> >
s/bus/cxl/devices/dax_regionX/extentX.Y/tag
> >
> > Signed-off-by: Navneet Singh
> > Co-developed-by: Ira Weiny
> > Signed-off-by: Ira Weiny
> >
> > ---
> > Changes:
> > [iweiny: split this out]
> > [Jonathan: add documentation for exten
Dave Jiang wrote:
>
>
> On 8/16/24 7:44 AM, ira.we...@intel.com wrote:
> > From: Navneet Singh
> >
[snip]
> > diff --git a/drivers/cxl/core/extent.c b/drivers/cxl/core/extent.c
> > index d7d526a51e2b..103b0bec3a4a 100644
> > --- a/drivers/cxl/core/extent.c
> > +++ b/drivers/cxl/core/extent.c
Dave Jiang wrote:
>
>
> On 8/16/24 7:44 AM, ira.we...@intel.com wrote:
> > From: Navneet Singh
> >
> > Dynamic capacity device extents may be left in an accepted state on a
> > device due to an unexpected host crash. In this case it is expected
> > that the creation of a new region on top of a
gt; > Add DC trace points to the trace log.
> >
> > Signed-off-by: Navneet Singh
> > Signed-off-by: Ira Weiny
> Reviewed-by: Dave Jiang
>
> small nit below
>
> >
> > ---
> > Changes:
> > [Alison: Updat
Andy Shevchenko wrote:
> On Mon, Aug 26, 2024 at 03:23:50PM +0200, Petr Mladek wrote:
> > On Thu 2024-08-22 21:10:25, Andy Shevchenko wrote:
> > > On Thu, Aug 22, 2024 at 12:53:32PM -0500, Ira Weiny wrote:
> > > > Petr Mladek wrote:
> > > > >
Petr Mladek wrote:
> On Mon 2024-08-26 16:17:52, Ira Weiny wrote:
> > Andy Shevchenko wrote:
> > > On Mon, Aug 26, 2024 at 03:23:50PM +0200, Petr Mladek wrote:
> > > > On Thu 2024-08-22 21:10:25, Andy Shevchenko wrote:
> > > > > On Thu, Aug
Andy Shevchenko wrote:
> On Mon, Aug 26, 2024 at 04:17:52PM -0500, Ira Weiny wrote:
> > Andy Shevchenko wrote:
> > > On Mon, Aug 26, 2024 at 03:23:50PM +0200, Petr Mladek wrote:
> > > > On Thu 2024-08-22 21:10:25, Andy Shevchenko wrote:
> > > > > On Thu
Jonathan Cameron wrote:
> On Fri, 16 Aug 2024 09:44:26 -0500
> ira.we...@intel.com wrote:
>
> > From: Navneet Singh
> >
[snip]
> > +static int match_contains(struct device *dev, void *data)
> > +{
> > + struct region_extent *region_extent = to_region_extent(dev);
> > + struct match_data *m
Jonathan Cameron wrote:
> On Fri, 16 Aug 2024 09:44:28 -0500
> Ira Weiny wrote:
>
> > Dynamic Capacity regions must limit dev dax resources to those areas
> > which have extents backing real memory. Such DAX regions are dubbed
> > 'sparse' regions. In orde
Jonathan Cameron wrote:
> On Fri, 16 Aug 2024 09:44:29 -0500
> ira.we...@intel.com wrote:
>
> > From: Navneet Singh
> >
[snip]
> > diff --git a/drivers/cxl/core/extent.c b/drivers/cxl/core/extent.c
> > index d7d526a51e2b..103b0bec3a4a 100644
> > --- a/drivers/cxl/core/extent.c
> > +++ b/driver
Jonathan Cameron wrote:
> On Fri, 16 Aug 2024 09:44:32 -0500
> Ira Weiny wrote:
>
> > The test event logs were created as static arrays as an easy way to mock
> > events. Dynamic Capacity Device (DCD) test support requires events be
> > generated dynamically
Jonathan Cameron wrote:
> On Fri, 16 Aug 2024 09:44:33 -0500
> Ira Weiny wrote:
>
> > cxl_test provides a good way to ensure quick smoke and regression
> > testing. The complexity of Dynamic Capacity (DC) extent processing as
> > well as the complexity of the new sp
oad (Total number of supported extents, number
> > of available extents, total number of supported tags, and number of
> > available tags). Avoid defining those fields to use the more useful
> > dynamic C array.
> >
> > Cc: "Li, Ming"
> > Si
Andy Shevchenko wrote:
> On Wed, Oct 09, 2024 at 03:30:14PM +0200, Rasmus Villemoes wrote:
>
> ...
>
> > Rather than the struct assignments, I think it's easier to read if you
> > just do
> >
> > struct range r;
> >
> > r.start = 0xc0ffee00ba5eba11;
> > r.end = r.start;
> > ...
> >
>
Andy Shevchenko wrote:
> On Wed, Oct 09, 2024 at 05:45:10PM +0300, Andy Shevchenko wrote:
> > On Tue, Oct 08, 2024 at 06:10:32PM +0200, David Sterba wrote:
> > > On Mon, Oct 07, 2024 at 06:16:10PM -0500, Ira Weiny wrote:
>
> ...
>
> > > > +static inli
Fan Ni wrote:
> On Mon, Oct 07, 2024 at 06:16:19PM -0500, ira.we...@intel.com wrote:
> > From: Navneet Singh
> >
[snip]
> > +
> > +static ssize_t show_read_only_dcN(struct cxl_memdev *cxlmd, char *buf, int
> > pos)
> > +{
> > + struct cxl_memdev_state *mds = to_cxl_memdev_state(cxlmd->cxlds)
Li, Ming4 wrote:
> On 10/10/2024 3:49 AM, Ira Weiny wrote:
> > Li, Ming4 wrote:
> >> On 10/8/2024 7:16 AM, ira.we...@intel.com wrote:
> >>> From: Navneet Singh
[snip]
> > This should fix it:
> >
> > diff --git a/drivers/cxl/core/mbox.c
Li, Ming4 wrote:
> On 10/8/2024 7:16 AM, ira.we...@intel.com wrote:
> > From: Navneet Singh
> >
[snip]
> >
> > Signed-off-by: Navneet Singh
> > Co-developed-by: Ira Weiny
> > Signed-off-by: Ira Weiny
> >
> Hi Ira,
>
> I guess you missed
Petr Mladek wrote:
> On Mon 2024-10-07 18:16:07, Ira Weiny wrote:
> > The printk tests for struct resource were stubbed out. struct range
> > printing will leverage the struct resource implementation.
> >
> > To prevent regression add some basic sanity tests for s
Rafael J. Wysocki wrote:
> On Tue, Oct 8, 2024 at 1:17 AM Ira Weiny wrote:
> >
[snip]
> > diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
> > index 199afc2cd122..387fc821703a 100644
> > --- a/include/acpi/actbl1.h
> > +++ b/include/acpi/actbl1
Jonathan Cameron wrote:
> On Mon, 07 Oct 2024 18:16:11 -0500
> Ira Weiny wrote:
>
> > The device DAX structure is being enhanced to track additional DCD
> > information.
> >
> > The current range tuple was not fully documented. Document it prior
Rasmus Villemoes wrote:
> Ira Weiny writes:
>
> > ---
> > Documentation/core-api/printk-formats.rst | 13
> > lib/test_printf.c | 26 +++
> > lib/vsprintf.c| 55
> >
storage of a
single skip resource in the xarray.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[djiang: s/skip_res/skip_xa/]
---
drivers/cxl/core/hdm.c | 196
drivers/cxl/core/port.c | 2 +
drivers
decoder.
Return the endpoint decoder found to be used in subsequent DCD code.
Signed-off-by: Ira Weiny
---
drivers/cxl/core/core.h | 6 --
drivers/cxl/core/mbox.c | 2 +-
drivers/cxl/core/memdev.c | 4 ++--
drivers/cxl/core/region.c | 8 +++-
4 files changed, 14 insertions(+), 6
From: Navneet Singh
To properly configure CXL regions on Dynamic Capacity Devices (DCD),
user space will need to know the details of the DC partitions available.
Expose dynamic capacity capabilities through sysfs.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira
Cc: acpica-de...@lists.linux.dev
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: new patch]
[iweiny: Gather shareable/read-only flags for later use]
---
drivers/cxl/core/cdat.c | 38 ++
drivers/cxl/core/mbox.c | 2 ++
drivers/cxl/cxlmem.h| 3 +++
include
specification r3.1.
Define the new modes and helper functions required to make the
association between these new modes.
Reviewed-by: Jonathan Cameron
Reviewed-by: Fan Ni
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: keep tags on simple patch
to be used in subsequent DC code.
Suggested-by: Fan Ni
Signed-off-by: Ira Weiny
---
drivers/cxl/core/region.c | 28 +++-
1 file changed, 11 insertions(+), 17 deletions(-)
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index ab00203f285a..2ca6148d108c
ed-by: Jonathan Cameron
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: keep tags for early simple patch]
[Davidlohr, Jonathan, djiang: move to beginning of series]
[Dave feel free to pick this up if you like]
---
drivers/cxl/pci.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
The device DAX structure is being enhanced to track additional DCD
information.
The current range tuple was not fully documented. Document it prior to
adding information for DC.
Suggested-by: Jonathan Cameron
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: move to start of series
devices on sparse
regions.
Interleaving is deferred for now. Add checks.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[Fan: use single function for dc region store]
[djiang: avoid setting dev_size twice]
[djbw: Check DCD support and interleave
ce for
the dax ranges. Future patches will use the same algorithm with
individual extent resources as the parent.
Signed-off-by: Ira Weiny
---
Changes:
[Jonathan: Fix handling of alloc]
---
drivers/dax/bus.c | 129 +-
1 file changed, 79 insert
ol of
memory events.
Configure DCD event log interrupts on devices supporting dynamic
capacity. Disable DCD if interrupts are not supported.
Care is taken to preserve the interrupt policy set by the FW if FW first
has been selected by the BIOS.
Signed-off-by: Navneet Singh
Co-developed-by: Ira
/dax_regionX/extentX.Y/offset
/sys/bus/cxl/devices/dax_regionX/extentX.Y/length
/sys/bus/cxl/devices/dax_regionX/extentX.Y/tag
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[djiang: Split sysfs docs up]
[iweiny: Adjust sysfs docs dates
sting DAX devices as having a 0 tag which
makes the most logical sense as a default.
Process DCD events and create region devices.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[Jonathan/jgroves/iweiny: restrict tags to 0]
[iweiny: rebase to 6.1
From: Navneet Singh
Endpoint decoder mode is used to represent the partition the decoder
points to such as ram or pmem.
Expand the mode to allow a decoder to point to a specific DC partition
(Region).
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
preparation for
separate DCD interrupts configuration.
Signed-off-by: Ira Weiny
---
drivers/cxl/pci.c | 24
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
index fc5ab74448cc..29a863331bec 100644
--- a/drivers/cxl/pci.c
.
Reviewed-by: Dave Jiang
Reviewed-by: Jonathan Cameron
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: reword commit message]
[iweiny: keep review tags on simple patch]
---
drivers/cxl/pci.c | 23 ---
1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/cxl/pci.c b
memory data. Add
sysfs entries on the mock device to inject and delete extents.
The inject format is :::
The delete format is :
Directly call the event irq callback to simulate irqs to process the
test extents.
Add DC mailbox commands to the CEL and implement those commands.
Signed-off-by: Ira
such that it can manage the hardware
appropriately.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[djiang: clarify the use of dax_region_{add,rm}_resource()
and dax_avail_size()]
[djiang: use guard(device)() and clean up notify function
.
Simplify log processing by using the event log array index as the
handle. Add a lock to manage concurrency required when user space is
allowed to control DCD extents
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: rebase to 6.12]
---
tools/testing/cxl/test/mem.c | 268
seen prior to the driver are read during driver load.
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: adjust for mailbox split]
[djiang: Update commit messages]
[djiang: s/cxl_read_extent_list/cxl_process_extent_list/]
[djian
From: Navneet Singh
CXL rev 3.1 section 8.2.9.2.1 adds the Dynamic Capacity Event Records.
User space can use trace events for debugging of DC capacity changes.
Add DC trace points to the trace log.
Signed-off-by: Navneet Singh
Signed-off-by: Ira Weiny
---
Changes:
[djiang: Use 3.1 spec
Andy: Share logic between printing struct resource and struct range
- Link to v3:
https://patch.msgid.link/20240816-dcd-type2-upstream-v3-0-7c9b96cba...@intel.com
---
Ira Weiny (14):
test printk: Add very basic struct resource tests
printk: Add print format (%pra) for struct range
cxl/cdat
.org/all/66cea3bf3332f_f937b29424@iweiny-mobl.notmuch/
[2]
Suggested-by: "Dan Williams"
Signed-off-by: Ira Weiny
---
Changes:
[Andy: create new hex_range() and use it in both range/resource]
[Petr/Andy: Use %pra]
[Andy: Add test case start > end]
[Petr: Update documentation]
[Petr: use
...@vger.kernel.org (open list)
Signed-off-by: Ira Weiny
---
drivers/cxl/core/cdat.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/cxl/core/cdat.c b/drivers/cxl/core/cdat.c
index ef1621d40f05..438869df241a 100644
--- a/drivers/cxl/core/cdat.c
+++ b/drivers/cxl/core
Senozhatsky
Cc: linux-...@vger.kernel.org
Signed-off-by: Ira Weiny
---
[lkp: ensure phys_addr_t is within limits for all arch's]
---
lib/test_printf.c | 44
1 file changed, 44 insertions(+)
diff --git a/lib/test_printf.c b/lib/test_printf.c
: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: Adjust for mailbox split]
[djiang: remove setting region names to '']
[fan: Clean up dev_{err,dbg}]
---
drivers/cxl/core/mbox.c | 166 +++-
driv
constructing regions with decoders which have been flagged as dead.
Suggested-by: Jonathan Cameron
Signed-off-by: Navneet Singh
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: rebase]
[Jonathan: remove dead code]
[Jonathan: clarify commit message]
---
drivers/cxl/core/cdat.c
Thumshirn
Reviewed-by: Fan Ni
Reviewed-by: Dave Jiang
Reviewed-by: Jonathan Cameron
Signed-off-by: Ira Weiny
[1]
https://lore.kernel.org/all/65949f79ef908_8dc6829...@dwillia2-xfh.jf.intel.com.notmuch/
---
fs/btrfs/ordered-data.c | 10 +-
include/linux/range.h | 7 +++
2 files
Release DC
Signed-off-by: Navneet Singh
Reviewed-by: Jonathan Cameron
Reviewed-by: Fan Ni
Reviewed-by: Dave Jiang
Reviewed-by: Davidlohr Bueso
Co-developed-by: Ira Weiny
Signed-off-by: Ira Weiny
---
Changes:
[iweiny: Keep tags for this early simple patch]
[Davidlohr: update commit message
; > /sys/bus/cxl/devices/dax_regionX/extentX.Y/tag
> >
> > Signed-off-by: Navneet Singh
> > Co-developed-by: Ira Weiny
> > Signed-off-by: Ira Weiny
> >
> Trivial comments inline.
>
> Reviewed-by: Jonathan Cameron
Thanks!
>
> > ---
Jonathan Cameron wrote:
> On Thu, 17 Oct 2024 16:15:03 -0500
> Ira Weiny wrote:
>
> > Jonathan Cameron wrote:
> > > On Wed, 9 Oct 2024 14:49:09 -0500
> > > Ira Weiny wrote:
> > >
> > > > Li, Ming4 wrote:
> > > > >
Jonathan Cameron wrote:
> On Thu, 17 Oct 2024 16:39:57 -0500
> Ira Weiny wrote:
>
> > Jonathan Cameron wrote:
> > > On Mon, 07 Oct 2024 18:16:27 -0500
> > > ira.we...@intel.com wrote:
> > >
[snip]
> > > > Simplify extent tracking with
Jonathan Cameron wrote:
> On Mon, 07 Oct 2024 18:16:29 -0500
> Ira Weiny wrote:
[snip]
> > Signed-off-by: Ira Weiny
> > ---
> > Changes:
> > [Jonathan: Fix handling of alloc]
>
> Trivial comments inline.
> Not an area I know much about, so treat this
vailable.
> >
> > Expose dynamic capacity capabilities through sysfs.
> >
> > Signed-off-by: Navneet Singh
> > Co-developed-by: Ira Weiny
> > Signed-off-by: Ira Weiny
> Some trivial stuff inline that I'm not that bothered about either way.
>
Jonathan Cameron wrote:
> On Wed, 9 Oct 2024 14:49:09 -0500
> Ira Weiny wrote:
>
> > Li, Ming4 wrote:
> > > On 10/8/2024 7:16 AM, ira.we...@intel.com wrote:
> > > > From: Navneet Singh
> > > >
[snip]
> >
> > > >
e DAX
> > region driver can co-drive them and synchronize with the DAX layer.
> > Synchronization and management is handled in a subsequent patch.
> >
> > Tag support within the DAX layer is not yet supported. To maintain
> > compatibility legacy DAX/
Jonathan Cameron wrote:
> On Mon, 07 Oct 2024 18:16:21 -0500
> Ira Weiny wrote:
>
> > create_pmem_region_store() and create_ram_region_store() are identical
> > with the exception of the region mode. With the addition of DC region
> > mode this would end up bein
Bagas Sanjaya wrote:
> On Mon, Oct 07, 2024 at 06:16:08PM -0500, Ira Weiny wrote:
> > +Struct Range
> > +
> > +
> > +::
> > +
> > + %pra[range 0x6000-0x6fff]
> > + %pra[range 0x6000]
> &
David Sterba wrote:
> On Mon, Oct 07, 2024 at 06:16:10PM -0500, Ira Weiny wrote:
> > --- a/include/linux/range.h
>> +++ b/include/linux/range.h
> > +/* True if any part of r1 overlaps r2 */
> > +static inline bool range_overlaps(struct range *r1, struct range *r2)
>
Fan Ni wrote:
> On Tue, Oct 08, 2024 at 03:57:13PM -0700, Fan Ni wrote:
> > On Mon, Oct 07, 2024 at 06:16:06PM -0500, Ira Weiny wrote:
> > > A git tree of this series can be found here:
> > >
> > > https://github.com/weiny2/linux-kernel/tree/dcd-v4
Fan Ni wrote:
> On Tue, Oct 08, 2024 at 03:57:13PM -0700, Fan Ni wrote:
> > On Mon, Oct 07, 2024 at 06:16:06PM -0500, Ira Weiny wrote:
> > > A git tree of this series can be found here:
> > >
> > > https://github.com/weiny2/linux-kernel/tree/dcd-v4
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