diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2022-06-05 00:49:53 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-07-25 21:18:07 +0200 |
| commit | b9686e8c8e39d4072081ef078c04915ee51c8af4 (patch) | |
| tree | afda61f1eada2060207f9a43c911c7857f605563 /drivers/cxl/core/port.c | |
| parent | cxl/region: Allocate HPA capacity to regions (diff) | |
| download | linux-b9686e8c8e39d4072081ef078c04915ee51c8af4.tar.xz linux-b9686e8c8e39d4072081ef078c04915ee51c8af4.zip | |
cxl/region: Enable the assignment of endpoint decoders to regions
The region provisioning process involves allocating DPA to a set of
endpoint decoders, and HPA plus the region geometry to a region device.
Then the decoder is assigned to the region. At this point several
validation steps can be performed to validate that the decoder is
suitable to participate in the region.
Co-developed-by: Ben Widawsky <bwidawsk@kernel.org>
Signed-off-by: Ben Widawsky <bwidawsk@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/165784336184.1758207.16403282029203949622.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/core/port.c')
| -rw-r--r-- | drivers/cxl/core/port.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c index 9a768822261b..ff6ea869fcc9 100644 --- a/drivers/cxl/core/port.c +++ b/drivers/cxl/core/port.c @@ -288,6 +288,7 @@ static struct attribute *cxl_decoder_base_attrs[] = { &dev_attr_locked.attr, &dev_attr_interleave_granularity.attr, &dev_attr_interleave_ways.attr, + SET_CXL_REGION_ATTR(region) NULL, }; @@ -1583,6 +1584,7 @@ struct cxl_endpoint_decoder *cxl_endpoint_decoder_alloc(struct cxl_port *port) if (!cxled) return ERR_PTR(-ENOMEM); + cxled->pos = -1; cxld = &cxled->cxld; rc = cxl_decoder_init(port, cxld); if (rc) { @@ -1687,6 +1689,13 @@ EXPORT_SYMBOL_NS_GPL(cxl_decoder_add, CXL); static void cxld_unregister(void *dev) { + struct cxl_endpoint_decoder *cxled; + + if (is_endpoint_decoder(dev)) { + cxled = to_cxl_endpoint_decoder(dev); + cxl_decoder_kill_region(cxled); + } + device_unregister(dev); } |