Commit c46bafc4 authored by Helge Deller's avatar Helge Deller
Browse files

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: default avatarHelge Deller <>
parent 25a9b765
......@@ -133,11 +133,20 @@ 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",
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;
#ifdef CONFIG_64BIT
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",
pdt_entry[i] & PAGE_MASK,
pdt_entry[i] & 1);
/* mark memory page bad */
memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
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