t; Signed-off-by: Ira Weiny
LGTM, although I am not very familiar with dax.
Reviewed-by: Fan Ni
>
> ---
> Changes:
> [iweiny: adjust to new partition mode and new singular dynamic ram
> partition]
> ---
> Documentation/ABI/testing/sysfs-bus-cxl | 22 +
_region *dax_region;
> struct dev_dax_data data;
> + resource_size_t dev_size;
> + unsigned long flags;
>
> if (nid == NUMA_NO_NODE)
> nid = memory_add_physaddr_to_nid(cxlr_dax->hpa_range.start);
>
> + flags = IORESOURCE_DAX_KMEM;
> + if (cxlr->mode == CXL_PARTMODE_DYNAMIC_RAM_A)
> + flags |= IORESOURCE_DAX_SPARSE_CAP;
> +
> dax_region = alloc_dax_region(dev, cxlr->id, &cxlr_dax->hpa_range, nid,
> - PMD_SIZE, IORESOURCE_DAX_KMEM);
> + PMD_SIZE, flags);
> if (!dax_region)
> return -ENOMEM;
>
> + if (cxlr->mode == CXL_PARTMODE_DYNAMIC_RAM_A)
> + /* Add empty seed dax device */
> + dev_size = 0;
> + else
> + dev_size = range_len(&cxlr_dax->hpa_range);
> +
> data = (struct dev_dax_data) {
> .dax_region = dax_region,
> .id = -1,
> - .size = range_len(&cxlr_dax->hpa_range),
> + .size = dev_size,
> .memmap_on_memory = true,
> };
>
>
> --
> 2.49.0
>
--
Fan Ni (From gmail)
einy
>
Reviewed-by: Fan Ni
> ---
> Changes:
> [iweiny: completely re-written]
> ---
> Documentation/ABI/testing/sysfs-bus-cxl | 18 +-
> drivers/cxl/core/port.c | 4
> 2 files changed, 13 insertions(+), 9 deletions(-)
>
> d
son(struct cxl_memdev *cxlmd, u64 offset, u64 len,
> diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
> index 7b14a154463c..bc40cf6e2fe9 100644
> --- a/drivers/cxl/pci.c
> +++ b/drivers/cxl/pci.c
> @@ -998,6 +998,9 @@ static int cxl_pci_probe(struct pci_dev *pdev, const
> struct pci_device_id *id)
> if (rc)
> return rc;
>
> + if (cxl_dcd_supported(mds))
> + cxl_configure_dcd(mds, &range_info);
> +
> rc = cxl_dpa_setup(cxlds, &range_info);
> if (rc)
> return rc;
>
> --
> 2.49.0
>
--
Fan Ni
On Tue, May 06, 2025 at 11:09:09AM -0500, Ira Weiny wrote:
> Fan Ni wrote:
> > On Mon, Apr 14, 2025 at 03:19:50PM +0100, Jonathan Cameron wrote:
> > > On Sun, 13 Apr 2025 17:52:09 -0500
> > > Ira Weiny wrote:
>
> [snip]
>
> > >
> > &g
mentation.
Fan
>
>
> > +{
> > + DECLARE_BITMAP(all_cmds, CXL_DCD_ENABLED_MAX);
> > + DECLARE_BITMAP(dst, CXL_DCD_ENABLED_MAX);
> > +
> > + bitmap_fill(all_cmds, CXL_DCD_ENABLED_MAX);
> > + return bitmap_and(dst, cmds_seen, all_cmds, CXL_DCD_ENABLED_MAX);
> > +}
> > +
>
>
--
Fan Ni
On Mon, Apr 14, 2025 at 09:37:02PM -0500, Ira Weiny wrote:
> Fan Ni wrote:
> > On Sun, Apr 13, 2025 at 05:52:08PM -0500, Ira Weiny wrote:
> > > A git tree of this series can be found here:
> > >
> > > https://github.com/weiny2/linux-kernel/tree/dcd-v6-2025-
On Sun, Apr 13, 2025 at 05:52:08PM -0500, Ira Weiny wrote:
> A git tree of this series can be found here:
>
> https://github.com/weiny2/linux-kernel/tree/dcd-v6-2025-04-13
>
> This is now based on 6.15-rc2.
>
> Due to the stagnation of solid requirements for users of DCD I do not
> plan to
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