diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2023-02-14 22:41:13 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2023-02-15 02:45:21 +0300 |
| commit | 59c3368b2e69eb7da7f271286a0bd80930dfc070 (patch) | |
| tree | d03c6a3598966ac12659a378fce0253890b8015c /drivers/cxl/port.c | |
| parent | 1acba6e9206c655f8eb6736c7cafbf022492f36d (diff) | |
| download | linux-59c3368b2e69eb7da7f271286a0bd80930dfc070.tar.xz | |
cxl/port: Export cxl_dvsec_rr_decode() to cxl_port
Call cxl_dvsec_rr_decode() in the beginning of cxl_port_probe() and
preserve the decoded information in a local
'struct cxl_endpoint_dvsec_info'. This info can be passed to various
functions later on in order to support the HDM decoder emulation.
The invocation of cxl_dvsec_rr_decode() in cxl_hdm_decode_init() is
removed and a pointer to the 'struct cxl_endpoint_dvsec_info' is passed
in.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/167640367377.935665.2848747799651019676.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/port.c')
| -rw-r--r-- | drivers/cxl/port.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/cxl/port.c b/drivers/cxl/port.c index 5453771bf330..9e09728b20d9 100644 --- a/drivers/cxl/port.c +++ b/drivers/cxl/port.c @@ -32,12 +32,21 @@ static void schedule_detach(void *cxlmd) static int cxl_port_probe(struct device *dev) { + struct cxl_endpoint_dvsec_info info = { 0 }; struct cxl_port *port = to_cxl_port(dev); + bool is_ep = is_cxl_endpoint(port); + struct cxl_dev_state *cxlds; + struct cxl_memdev *cxlmd; struct cxl_hdm *cxlhdm; int rc; - - if (!is_cxl_endpoint(port)) { + if (is_ep) { + cxlmd = to_cxl_memdev(port->uport); + cxlds = cxlmd->cxlds; + rc = cxl_dvsec_rr_decode(cxlds->dev, cxlds->cxl_dvsec, &info); + if (rc < 0) + return rc; + } else { rc = devm_cxl_port_enumerate_dports(port); if (rc < 0) return rc; @@ -49,10 +58,7 @@ static int cxl_port_probe(struct device *dev) if (IS_ERR(cxlhdm)) return PTR_ERR(cxlhdm); - if (is_cxl_endpoint(port)) { - struct cxl_memdev *cxlmd = to_cxl_memdev(port->uport); - struct cxl_dev_state *cxlds = cxlmd->cxlds; - + if (is_ep) { /* Cache the data early to ensure is_visible() works */ read_cdat_data(port); @@ -61,7 +67,7 @@ static int cxl_port_probe(struct device *dev) if (rc) return rc; - rc = cxl_hdm_decode_init(cxlds, cxlhdm); + rc = cxl_hdm_decode_init(cxlds, cxlhdm, &info); if (rc) return rc; |