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authorKent Yoder <key@linux.vnet.ibm.com>2012-04-12 05:39:35 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-05-16 15:05:46 +1000
commit7e3a4fa160387a72d42e3f8c4b887bb0a9c50d7e (patch)
tree9b7b4a6b58701d6e3a1cea0a2741136527845295 /arch/powerpc/kernel/prom_init.c
parentaef7b31c8833e7dd79c2320f6d0433861a6d3653 (diff)
powerpc/crypto: Enable the PFO-based encryption device
This patch adds the cas bits to advertise support for the Platform Facilities Option (PFO) based encryption accelerator device. The nx device driver provides support for this hardware feature. Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/prom_init.c')
-rw-r--r--arch/powerpc/kernel/prom_init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 5b7e514e791..1b488e5305c 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -705,6 +705,7 @@ static void __init early_cmdline_parse(void)
#endif
#define OV5_TYPE1_AFFINITY 0x80 /* Type 1 NUMA affinity */
#define OV5_PFO_HW_RNG 0x80 /* PFO Random Number Generator */
+#define OV5_PFO_HW_ENCR 0x20 /* PFO Encryption Accelerator */
/* Option Vector 6: IBM PAPR hints */
#define OV6_LINUX 0x02 /* Linux is our OS */
@@ -773,7 +774,7 @@ static unsigned char ibm_architecture_vec[] = {
0,
0,
0,
- OV5_PFO_HW_RNG,
+ OV5_PFO_HW_RNG | OV5_PFO_HW_ENCR,
/* option vector 6: IBM PAPR hints */
4 - 2, /* length */