From d4839582bc7002095b013acb4a2dcaa1438c41aa Mon Sep 17 00:00:00 2001 From: Qiuxu Zhuo Date: Wed, 19 Nov 2025 12:11:40 -0800 Subject: [PATCH] EDAC/skx_common: Prepare for skx_set_hi_lo() The upcoming imh_edac driver for Intel Diamond Rapids servers cannot use skx_get_hi_lo() in skx_common to retrieve the TOHM (Top of High Memory) and TOLM (Top of Low Memory) parameters. Instead, it obtains these parameters within its own EDAC driver. To accommodate this, prepare skx_set_hi_lo() to allow the driver to notify skx_common of these parameters. Tested-by: Yi Lai Signed-off-by: Qiuxu Zhuo Signed-off-by: Tony Luck Link: https://patch.msgid.link/20251119134132.2389472-4-qiuxu.zhuo@intel.com --- drivers/edac/skx_common.c | 7 +++++++ drivers/edac/skx_common.h | 1 + 2 files changed, 8 insertions(+) diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c index 6a1b30aa1ee69..e45abd0008ef7 100644 --- a/drivers/edac/skx_common.c +++ b/drivers/edac/skx_common.c @@ -430,6 +430,13 @@ fail: } EXPORT_SYMBOL_GPL(skx_get_hi_lo); +void skx_set_hi_lo(u64 tolm, u64 tohm) +{ + skx_tolm = tolm; + skx_tohm = tohm; +} +EXPORT_SYMBOL_GPL(skx_set_hi_lo); + static int skx_get_dimm_attr(u32 reg, int lobit, int hibit, int add, int minval, int maxval, const char *name) { diff --git a/drivers/edac/skx_common.h b/drivers/edac/skx_common.h index 52734091a79d0..86a883d3c2a4b 100644 --- a/drivers/edac/skx_common.h +++ b/drivers/edac/skx_common.h @@ -296,6 +296,7 @@ int skx_get_all_bus_mappings(struct res_config *cfg, struct list_head **list); struct list_head *skx_get_edac_list(void); int skx_get_hi_lo(unsigned int did, int off[], u64 *tolm, u64 *tohm); +void skx_set_hi_lo(u64 tolm, u64 tohm); int skx_get_dimm_info(u32 mtr, u32 mcmtr, u32 amap, struct dimm_info *dimm, struct skx_imc *imc, int chan, int dimmno, -- 2.47.3