diff options
| author | Ben Widawsky <ben.widawsky@intel.com> | 2022-01-24 03:29:31 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-02-09 09:57:28 +0300 |
| commit | 608135db1b790170d22848815c4671407af74e37 (patch) | |
| tree | 56ac0d0db0c6169734ac12455f743c55918c3c41 /drivers/cxl/cxl.h | |
| parent | c3bca8d4bb3ff77b8784cdc794eb1f8f89b10fb5 (diff) | |
cxl/core: Convert decoder range to resource
CXL decoders manage address ranges in a hierarchical fashion whereby a
leaf is a unique subregion of its parent decoder (midlevel or root). It
therefore makes sense to use the resource API for handling this.
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> (v1)
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Link: https://lore.kernel.org/r/164298417191.3018233.5201055578165414714.stgit@dwillia2-desk3.amr.corp.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 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 38779409a419..bfd95acea66c 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -179,7 +179,8 @@ enum cxl_decoder_type { * struct cxl_decoder - CXL address range decode configuration * @dev: this decoder's device * @id: kernel device name id - * @range: address range considered by this decoder + * @platform_res: address space resources considered by root decoder + * @decoder_range: address space resources considered by midlevel decoder * @interleave_ways: number of cxl_dports in this decode * @interleave_granularity: data stride per dport * @target_type: accelerator vs expander (type2 vs type3) selector @@ -190,7 +191,10 @@ enum cxl_decoder_type { struct cxl_decoder { struct device dev; int id; - struct range range; + union { + struct resource platform_res; + struct range decoder_range; + }; int interleave_ways; int interleave_granularity; enum cxl_decoder_type target_type; |