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| author | Abhijit Gangurde <abhijit.gangurde@amd.com> | 2023-10-17 21:35:05 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-27 13:23:24 +0200 |
| commit | fa10f413091a43f801f82b3cf484f15d6fc9266f (patch) | |
| tree | 841c8ae975588c68351c92ae5ada6ba3db414bc6 /include/linux/cdx | |
| parent | 0174f5810401ae6390bfe15354346b5ea660d40c (diff) | |
| download | linux-stable-fa10f413091a43f801f82b3cf484f15d6fc9266f.tar.gz linux-stable-fa10f413091a43f801f82b3cf484f15d6fc9266f.tar.bz2 linux-stable-fa10f413091a43f801f82b3cf484f15d6fc9266f.zip | |
cdx: add sysfs for subsystem, class and revision
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>
Diffstat (limited to 'include/linux/cdx')
| -rw-r--r-- | include/linux/cdx/cdx_bus.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/include/linux/cdx/cdx_bus.h b/include/linux/cdx/cdx_bus.h index 18e95076d1d5..cf9738e3a957 100644 --- a/include/linux/cdx/cdx_bus.h +++ b/include/linux/cdx/cdx_bus.h @@ -39,6 +39,19 @@ typedef int (*cdx_dev_configure_cb)(struct cdx_controller *cdx, struct cdx_device_config *dev_config); /** + * CDX_DEVICE - macro used to describe a specific CDX device + * @vend: the 16 bit CDX Vendor ID + * @dev: the 16 bit CDX Device ID + * + * This macro is used to create a struct cdx_device_id that matches a + * specific device. The subvendor and subdevice fields will be set to + * CDX_ANY_ID. + */ +#define CDX_DEVICE(vend, dev) \ + .vendor = (vend), .device = (dev), \ + .subvendor = CDX_ANY_ID, .subdevice = CDX_ANY_ID + +/** * CDX_DEVICE_DRIVER_OVERRIDE - macro used to describe a CDX device with * override_only flags. * @vend: the 16 bit CDX Vendor ID @@ -46,10 +59,12 @@ typedef int (*cdx_dev_configure_cb)(struct cdx_controller *cdx, * @driver_override: the 32 bit CDX Device override_only * * This macro is used to create a struct cdx_device_id that matches only a - * driver_override device. + * driver_override device. The subvendor and subdevice fields will be set to + * CDX_ANY_ID. */ #define CDX_DEVICE_DRIVER_OVERRIDE(vend, dev, driver_override) \ - .vendor = (vend), .device = (dev), .override_only = (driver_override) + .vendor = (vend), .device = (dev), .subvendor = CDX_ANY_ID,\ + .subdevice = CDX_ANY_ID, .override_only = (driver_override) /** * struct cdx_ops - Callbacks supported by CDX controller. @@ -88,6 +103,10 @@ struct cdx_controller { * @cdx: CDX controller associated with the device * @vendor: Vendor ID for CDX device * @device: Device ID for CDX device + * @subsystem_vendor: Subsystem Vendor ID for CDX device + * @subsystem_device: Subsystem Device ID for CDX device + * @class: Class for the CDX device + * @revision: Revision of the CDX device * @bus_num: Bus number for this CDX device * @dev_num: Device number for this device * @res: array of MMIO region entries @@ -107,6 +126,10 @@ struct cdx_device { struct cdx_controller *cdx; u16 vendor; u16 device; + u16 subsystem_vendor; + u16 subsystem_device; + u32 class; + u8 revision; u8 bus_num; u8 dev_num; struct resource res[MAX_CDX_DEV_RESOURCES]; |