[PATCH V6 8/8] powerpc: Enable support for new DRC devtree properties

[Michael Bringmann]

prom_init.c: Enable support for new DRC device tree properties
"ibm,drc-info" and "ibm,dynamic-memory-v2" in initial handshake
between the Linux kernel and the front end processor.

[V2: Revise constant names.]
[V3: No change.]
[V4: Update comments]
[V5: Resynchronize/resubmit]
[V6: Resynchronize to latest kernel commit code]

Signed-off-by: Michael Bringmann <mwb at linux.vnet.ibm.com>
---
diff -Naur linux-rhel/arch/powerpc/kernel/prom_init.c linux-rhel-patch/arch/powerpc/kernel/prom_init.c
--- linux-rhel/arch/powerpc/kernel/prom_init.c	2016-03-03 07:36:25.000000000 -0600
+++ linux-rhel-patch/arch/powerpc/kernel/prom_init.c	2016-06-20 15:59:58.016373676 -0500
@@ -695,7 +695,7 @@
 	OV4_MIN_ENT_CAP,		/* minimum VP entitled capacity */
 
 	/* option vector 5: PAPR/OF options */
-	VECTOR_LENGTH(21),		/* length */
+	VECTOR_LENGTH(22),		/* length */
 	0,				/* don't ignore, don't halt */
 	OV5_FEAT(OV5_LPAR) | OV5_FEAT(OV5_SPLPAR) | OV5_FEAT(OV5_LARGE_PAGES) |
 	OV5_FEAT(OV5_DRCONF_MEMORY) | OV5_FEAT(OV5_DONATE_DEDICATE_CPU) |
@@ -731,6 +731,7 @@
 	0,							/* Byte 19 */
 	0,							/* Byte 20 */
 	OV5_FEAT(OV5_SUB_PROCESSORS),				/* Byte 21 */
+	OV5_FEAT(OV5_DYN_MEM_V2) | OV5_FEAT(OV5_DRC_INFO),	/* Byte 22 */
 
 	/* option vector 6: IBM PAPR hints */
 	VECTOR_LENGTH(3),		/* length */