edac: add DDR4 and RDDR4

Haswell memory controller can make use of DDR4 and Registered DDR4

Cc: tony.luck@intel.com
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 01fae82..a6cd361 100644 (file)
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -108,7 +108,9 @@ static const char * const mem_types[] = {
        [MEM_RDDR2] = "Registered-DDR2",
        [MEM_XDR] = "XDR",
        [MEM_DDR3] = "Unbuffered-DDR3",
-       [MEM_RDDR3] = "Registered-DDR3"
+       [MEM_RDDR3] = "Registered-DDR3",
+       [MEM_DDR4] = "Unbuffered-DDR4",
+       [MEM_RDDR4] = "Registered-DDR4"
 };
 
 static const char * const dev_types[] = {

diff --git a/include/linux/edac.h b/include/linux/edac.h
index 8e6c20a..e1e68da 100644 (file)
--- a/include/linux/edac.h
+++ b/include/linux/edac.h
@@ -194,6 +194,9 @@ static inline char *mc_event_error_type(const unsigned int err_type)
  * @MEM_DDR3:          DDR3 RAM
  * @MEM_RDDR3:         Registered DDR3 RAM
  *                     This is a variant of the DDR3 memories.
+ * @MEM_DDR4:          DDR4 RAM
+ * @MEM_RDDR4:         Registered DDR4 RAM
+ *                     This is a variant of the DDR4 memories.
  */
 enum mem_type {
        MEM_EMPTY = 0,
@@ -213,6 +216,8 @@ enum mem_type {
        MEM_XDR,
        MEM_DDR3,
        MEM_RDDR3,
+       MEM_DDR4,
+       MEM_RDDR4,
 };
 
 #define MEM_FLAG_EMPTY         BIT(MEM_EMPTY)