parisc: Show DIMM slot number which holds broken memory module

PATCH New Helge Deller 1 participant 1 message Jul 25, 2017 PA-RISC architecture

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Helge Deller

author maintainer

2017-07-25 18:12 UTC #0 lore raw

PATCH 1/1 parisc: Show DIMM slot number which holds broken memory module

The Page Deallocation Table (PDT) holds the physical addresses of all broken memory addresses. With the physical address we now are able to show which DIMM slot (e.g. 1a, 3c) actually holds the broken memory module so that users are able to replace it.

Signed-off-by Helge Deller <[email protected]>

arch/parisc/kernel/pdt.c +12 -5

index 040d49b..fab374c 100644
@@ -133,11 +133,18 @@ void __init pdc_pdt_init(void)
 	}
 
 	for (i = 0; i < pdt_status.pdt_entries; i++) {
-		if (i < 20)
-			pr_warn("PDT: BAD PAGE #%d at 0x%08lx (error_type = %lu)\n",
-				i,
-				pdt_entry[i] & PAGE_MASK,
-				pdt_entry[i] & 1);
+		struct pdc_pat_mem_phys_mem_location loc;
+
+		/* get DIMM slot number */
+		loc.dimm_slot = 0xff;
+		pdc_pat_mem_get_dimm_phys_location(&loc, pdt_entry[i]);
+
+		pr_warn("PDT: BAD PAGE #%d at 0x%08lx, "
+			"DIMM slot %02x (error_type = %lu)\n",
+			i,
+			pdt_entry[i] & PAGE_MASK,
+			loc.dimm_slot,
+			pdt_entry[i] & 1);
 
 		/* mark memory page bad */
 		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);