crypto: Add support for x86 cpuid auto loading for x86 crypto drivers

[linux-2.6-microblaze.git] / drivers / crypto / padlock-sha.c

diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c
index 06bdb4b..9266c0e 100644 (file)
--- a/drivers/crypto/padlock-sha.c
+++ b/drivers/crypto/padlock-sha.c
@@ -22,6 +22,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/scatterlist.h>
+#include <asm/cpu_device_id.h>
 #include <asm/i387.h>
 
 struct padlock_sha_desc {
@@ -526,6 +527,12 @@ static struct shash_alg sha256_alg_nano = {
        }
 };
 
+static struct x86_cpu_id padlock_sha_ids[] = {
+       X86_FEATURE_MATCH(X86_FEATURE_PHE),
+       {}
+};
+MODULE_DEVICE_TABLE(x86cpu, padlock_sha_ids);
+
 static int __init padlock_init(void)
 {
        int rc = -ENODEV;
@@ -533,15 +540,8 @@ static int __init padlock_init(void)
        struct shash_alg *sha1;
        struct shash_alg *sha256;
 
-       if (!cpu_has_phe) {
-               printk(KERN_NOTICE PFX "VIA PadLock Hash Engine not detected.\n");
-               return -ENODEV;
-       }
-
-       if (!cpu_has_phe_enabled) {
-               printk(KERN_NOTICE PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
+       if (!x86_match_cpu(padlock_sha_ids) || !cpu_has_phe_enabled)
                return -ENODEV;
-       }
 
        /* Register the newly added algorithm module if on *
        * VIA Nano processor, or else just do as before */