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cdx: add sysfs for subsystem, class and revision

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CDX controller provides subsystem vendor, subsystem device, class and
revision info of the device along with vendor and device ID in native
endian format. CDX Bus system uses this information to bind the cdx
device to the cdx device driver.

Co-developed-by: Puneet Gupta <puneet.gupta@amd.com>
Signed-off-by: Puneet Gupta <puneet.gupta@amd.com>
Co-developed-by: Nipun Gupta <nipun.gupta@amd.com>
Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com>
Link: https://lore.kernel.org/r/20231017160505.10640-8-abhijit.gangurde@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Abhijit Gangurde
2023-10-17 21:35:05 +05:30
committed by Greg Kroah-Hartman
parent 0174f58104
commit fa10f41309
8 changed files with 135 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
scripts/mod/devicetable-offsets.c
View File

@@ -265,6 +265,10 @@ int main(void)
DEVID(cdx_device_id);
DEVID_FIELD(cdx_device_id, vendor);
DEVID_FIELD(cdx_device_id, device);
DEVID_FIELD(cdx_device_id, subvendor);
DEVID_FIELD(cdx_device_id, subdevice);
DEVID_FIELD(cdx_device_id, class);
DEVID_FIELD(cdx_device_id, class_mask);
DEVID_FIELD(cdx_device_id, override_only);
return 0;

8
scripts/mod/file2alias.c
View File

@@ -1458,6 +1458,10 @@ static int do_cdx_entry(const char *filename, void *symval,
{
DEF_FIELD(symval, cdx_device_id, vendor);
DEF_FIELD(symval, cdx_device_id, device);
DEF_FIELD(symval, cdx_device_id, subvendor);
DEF_FIELD(symval, cdx_device_id, subdevice);
DEF_FIELD(symval, cdx_device_id, class);
DEF_FIELD(symval, cdx_device_id, class_mask);
DEF_FIELD(symval, cdx_device_id, override_only);
switch (override_only) {
@@ -1475,6 +1479,10 @@ static int do_cdx_entry(const char *filename, void *symval,
ADD(alias, "v", vendor != CDX_ANY_ID, vendor);
ADD(alias, "d", device != CDX_ANY_ID, device);
ADD(alias, "sv", subvendor != CDX_ANY_ID, subvendor);
ADD(alias, "sd", subdevice != CDX_ANY_ID, subdevice);
ADD(alias, "c", class_mask == 0xFFFFFF, class);
return 1;
}