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authorDan Williams <dan.j.williams@intel.com>2023-02-10 12:06:45 +0300
committerDan Williams <dan.j.williams@intel.com>2023-02-11 04:33:04 +0300
commit3d8f7ccaa611a743ae3a1e6f605346993d37c513 (patch)
treecd2a2bc900ad2b5aeee53620ea83f044c07af4b9 /drivers/cxl/cxl.h
parenta32320b71f085f8d82afedcf285f1682c8c00aed (diff)
downloadlinux-3d8f7ccaa611a743ae3a1e6f605346993d37c513.tar.xz
tools/testing/cxl: Define a fixed volatile configuration to parse
Take two endpoints attached to the first switch on the first host-bridge in the cxl_test topology and define a pre-initialized region. This is a x2 interleave underneath a x1 CXL Window. $ modprobe cxl_test $ # cxl list -Ru { "region":"region3", "resource":"0xf010000000", "size":"512.00 MiB (536.87 MB)", "interleave_ways":2, "interleave_granularity":4096, "decode_state":"commit" } Tested-by: Fan Ni <fan.ni@samsung.com> Reviewed-by: Vishal Verma <vishal.l.verma@intel.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/167602000547.1924368.11613151863880268868.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/cxl.h')
-rw-r--r--drivers/cxl/cxl.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h
index c8ee4bb8cce6..2ac344235235 100644
--- a/drivers/cxl/cxl.h
+++ b/drivers/cxl/cxl.h
@@ -653,8 +653,10 @@ struct cxl_dport *devm_cxl_add_rch_dport(struct cxl_port *port,
struct cxl_decoder *to_cxl_decoder(struct device *dev);
struct cxl_root_decoder *to_cxl_root_decoder(struct device *dev);
+struct cxl_switch_decoder *to_cxl_switch_decoder(struct device *dev);
struct cxl_endpoint_decoder *to_cxl_endpoint_decoder(struct device *dev);
bool is_root_decoder(struct device *dev);
+bool is_switch_decoder(struct device *dev);
bool is_endpoint_decoder(struct device *dev);
struct cxl_root_decoder *cxl_root_decoder_alloc(struct cxl_port *port,
unsigned int nr_targets,