diff options
| author | Abhijit Gangurde <abhijit.gangurde@amd.com> | 2023-12-22 09:46:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-04 19:01:13 +0300 |
| commit | aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d (patch) | |
| tree | aa2061ee2e834deba5c7f9bd1843296d0dc3a07c /include/linux/cdx | |
| parent | 6bafe07c930676d6430be471310958070816a595 (diff) | |
| download | linux-aeda33ab8160c7a2e24ba4f44492ad1e974ddc7d.tar.xz | |
cdx: create sysfs bin files for cdx resources
Resource binary file contains the content of the memory regions.
These resources<x> devices can be used to mmap the MMIO regions in
the user-space.
Co-developed-by: Puneet Gupta <puneet.gupta@amd.com>
Signed-off-by: Puneet Gupta <puneet.gupta@amd.com>
Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Link: https://lore.kernel.org/r/20231222064627.2828960-1-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 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/cdx/cdx_bus.h b/include/linux/cdx/cdx_bus.h index 94ad2c9017c9..fab9e62c7e7d 100644 --- a/include/linux/cdx/cdx_bus.h +++ b/include/linux/cdx/cdx_bus.h @@ -135,6 +135,7 @@ struct cdx_device { u8 bus_num; u8 dev_num; struct resource res[MAX_CDX_DEV_RESOURCES]; + struct bin_attribute *res_attr[MAX_CDX_DEV_RESOURCES]; u8 res_count; u64 dma_mask; u16 flags; @@ -147,6 +148,15 @@ struct cdx_device { #define to_cdx_device(_dev) \ container_of(_dev, struct cdx_device, dev) +#define cdx_resource_start(dev, num) ((dev)->res[(num)].start) +#define cdx_resource_end(dev, num) ((dev)->res[(num)].end) +#define cdx_resource_flags(dev, num) ((dev)->res[(num)].flags) +#define cdx_resource_len(dev, num) \ + ((cdx_resource_start((dev), (num)) == 0 && \ + cdx_resource_end((dev), (num)) == \ + cdx_resource_start((dev), (num))) ? 0 : \ + (cdx_resource_end((dev), (num)) - \ + cdx_resource_start((dev), (num)) + 1)) /** * struct cdx_driver - CDX device driver * @driver: Generic device driver |