From 81ad0ed44690596a846ac39da0b2fd966973fc21 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 5 Aug 2022 13:38:14 -0700 Subject: [PATCH 204/217] cxl/list: Filter decoders by region With a region name in hand, it is useful to be able to filter all the decoders in the topology that are mapping that region. Link: https://lore.kernel.org/r/165973189465.1528532.9072953032089147905.stgit@dwillia2-xfh.jf.intel.com Signed-off-by: Dan Williams Signed-off-by: Vishal Verma --- cxl/filter.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/cxl/filter.c b/cxl/filter.c index 38ece55..9a3de8c 100644 --- a/cxl/filter.c +++ b/cxl/filter.c @@ -652,6 +652,26 @@ struct cxl_region *util_cxl_region_filter(struct cxl_region *region, } +static struct cxl_decoder * +util_cxl_decoder_filter_by_region(struct cxl_decoder *decoder, + const char *__ident) +{ + struct cxl_region *region; + + if (!__ident) + return decoder; + + region = cxl_decoder_get_region(decoder); + if (!region) + return NULL; + + region = util_cxl_region_filter(region, __ident); + if (!region) + return NULL; + + return decoder; +} + static unsigned long params_to_flags(struct cxl_filter_params *param) { unsigned long flags = 0; @@ -790,6 +810,9 @@ static void walk_decoders(struct cxl_port *port, struct cxl_filter_params *p, if (!util_cxl_decoder_filter_by_memdev( decoder, p->memdev_filter, p->serial_filter)) goto walk_children; + if (!util_cxl_decoder_filter_by_region(decoder, + p->region_filter)) + goto walk_children; if (!p->idle && cxl_decoder_get_size(decoder) == 0) continue; jdecoder = util_cxl_decoder_to_json(decoder, flags); -- 2.27.0