powerpc/pseries/fadump: add support for multiple boot memory regions

[linux-block.git] / arch / powerpc / platforms / powernv / opal-fadump.c

diff --git a/arch/powerpc/platforms/powernv/opal-fadump.c b/arch/powerpc/platforms/powernv/opal-fadump.c
index 767a6b19e42a857ad71e25648bf6504abd69fe80..5a88d7efb48a2657b08ad13310989fc52eea8020 100644 (file)
--- a/arch/powerpc/platforms/powernv/opal-fadump.c
+++ b/arch/powerpc/platforms/powernv/opal-fadump.c
@@ -599,6 +599,12 @@ static void opal_fadump_trigger(struct fadump_crash_info_header *fdh,
                pr_emerg("No backend support for MPIPL!\n");
 }
 
+/* FADUMP_MAX_MEM_REGS or lower */
+static int opal_fadump_max_boot_mem_rgns(void)
+{
+       return FADUMP_MAX_MEM_REGS;
+}
+
 static struct fadump_ops opal_fadump_ops = {
        .fadump_init_mem_struct         = opal_fadump_init_mem_struct,
        .fadump_get_metadata_size       = opal_fadump_get_metadata_size,
@@ -611,6 +617,7 @@ static struct fadump_ops opal_fadump_ops = {
        .fadump_process                 = opal_fadump_process,
        .fadump_region_show             = opal_fadump_region_show,
        .fadump_trigger                 = opal_fadump_trigger,
+       .fadump_max_boot_mem_rgns       = opal_fadump_max_boot_mem_rgns,
 };
 
 void __init opal_fadump_dt_scan(struct fw_dump *fadump_conf, u64 node)