diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2022-11-29 10:48:42 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-12-03 13:40:17 -0800 |
| commit | a1554e9cac5ea04aaf2fb2de0df9936a94cb96fc (patch) | |
| tree | cff52081d64406c4ffa914c7eddad07843d7aa2c /drivers/cxl/cxl.h | |
| parent | 920d8d2c60787bf63e023b120e81ca788d4191ff (diff) | |
cxl/pci: Prepare for mapping RAS Capability Structure
The RAS Capabilitiy Structure is a CXL Component register capability
block. Unlike the HDM Decoder Capability, it will be referenced by the
cxl_pci driver in response to PCIe AER events. Due to this it is no
longer the case that cxl_map_component_regs() can assume that it should
map all component registers. Plumb a bitmask of capability ids to map
through cxl_map_component_regs().
For symmetry cxl_probe_device_regs() is updated to populate @id in
'struct cxl_reg_map' even though cxl_map_device_regs() does not have a
need to map a subset of the device registers per caller.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166974412214.1608150.11487843455070795378.stgit@djiang5-desk3.ch.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.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 46299e72f2c9..fc16c9a9e1ba 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -170,6 +170,7 @@ struct cxl_regs { struct cxl_reg_map { bool valid; + int id; unsigned long offset; unsigned long size; }; @@ -209,7 +210,8 @@ void cxl_probe_component_regs(struct device *dev, void __iomem *base, void cxl_probe_device_regs(struct device *dev, void __iomem *base, struct cxl_device_reg_map *map); int cxl_map_component_regs(struct device *dev, struct cxl_component_regs *regs, - struct cxl_register_map *map); + struct cxl_register_map *map, + unsigned long map_mask); int cxl_map_device_regs(struct device *dev, struct cxl_device_regs *regs, struct cxl_register_map *map); |