powerpc/pseries: Update arch vector to indicate support for CMO

Update the architecture vector to indicate that Cooperative Memory
Overcommitment is supported if CONFIG_PPC_SMLPAR is set.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 1ea8c8d3ce89af4eb230a5a3332d8a020dee20cf..c4ab2195b9cb69e74aaed8899f1c210d5a1cc525 100644 (file)
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -643,6 +643,11 @@ static void __init early_cmdline_parse(void)
 #else
 #define OV5_MSI                        0x00
 #endif /* CONFIG_PCI_MSI */
+#ifdef CONFIG_PPC_SMLPAR
+#define OV5_CMO                        0x80    /* Cooperative Memory Overcommitment */
+#else
+#define OV5_CMO                        0x00
+#endif
 
 /*
  * The architecture vector has an array of PVR mask/value pairs,
@@ -687,10 +692,12 @@ static unsigned char ibm_architecture_vec[] = {
        0,                              /* don't halt */
 
        /* option vector 5: PAPR/OF options */
-       3 - 2,                          /* length */
+       5 - 2,                          /* length */
        0,                              /* don't ignore, don't halt */
        OV5_LPAR | OV5_SPLPAR | OV5_LARGE_PAGES | OV5_DRCONF_MEMORY |
        OV5_DONATE_DEDICATE_CPU | OV5_MSI,
+       0,
+       OV5_CMO,
 };
 
 /* Old method - ELF header with PT_NOTE sections */