diff options
Diffstat (limited to 'drivers/cxl/cxl.h')
| -rw-r--r-- | drivers/cxl/cxl.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/cxl/cxl.h b/drivers/cxl/cxl.h index 9518b57c19b6..5e84aa2d09e2 100644 --- a/drivers/cxl/cxl.h +++ b/drivers/cxl/cxl.h @@ -255,6 +255,7 @@ enum cxl_decoder_type { * @interleave_ways: number of cxl_dports in this decode * @interleave_granularity: data stride per dport * @target_type: accelerator vs expander (type2 vs type3) selector + * @region: currently assigned region for this decoder * @flags: memory type capabilities and locking */ struct cxl_decoder { @@ -264,14 +265,20 @@ struct cxl_decoder { int interleave_ways; int interleave_granularity; enum cxl_decoder_type target_type; + struct cxl_region *region; unsigned long flags; }; +/* + * CXL_DECODER_DEAD prevents endpoints from being reattached to regions + * while cxld_unregister() is running + */ enum cxl_decoder_mode { CXL_DECODER_NONE, CXL_DECODER_RAM, CXL_DECODER_PMEM, CXL_DECODER_MIXED, + CXL_DECODER_DEAD, }; /** @@ -280,12 +287,14 @@ enum cxl_decoder_mode { * @dpa_res: actively claimed DPA span of this decoder * @skip: offset into @dpa_res where @cxld.hpa_range maps * @mode: which memory type / access-mode-partition this decoder targets + * @pos: interleave position in @cxld.region */ struct cxl_endpoint_decoder { struct cxl_decoder cxld; struct resource *dpa_res; resource_size_t skip; enum cxl_decoder_mode mode; + int pos; }; /** @@ -351,6 +360,8 @@ struct cxl_region_params { int interleave_ways; int interleave_granularity; struct resource *res; + struct cxl_endpoint_decoder *targets[CXL_DECODER_MAX_INTERLEAVE]; + int nr_targets; }; /** |