[SPARC64]: Fill holes in hypervisor APIs and fix KTSB registry.

Several interfaces were missing and others misnumbered or
improperly documented.

Also, make sure to check the return value when registering
the kernel TSBs with the hypervisor.  This helped to find
the 4MB kernel TSB alignment bug fixed in a previous changeset.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 23 deletions

diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index f2e73e613748..a31a0439244f 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -680,22 +680,14 @@ static int starfire_set_time(u32 val)
 
 static u32 hypervisor_get_time(void)
 {
-        register unsigned long func asm("%o5");
-        register unsigned long arg0 asm("%o0");
-        register unsigned long arg1 asm("%o1");
+        unsigned long ret, time;
         int retries = 10000;
 
 retry:
-        func = HV_FAST_TOD_GET;
-        arg0 = 0;
-        arg1 = 0;
-        __asm__ __volatile__("ta        %6"
-                             : "=&r" (func), "=&r" (arg0), "=&r" (arg1)
-                             : "0" (func), "1" (arg0), "2" (arg1),
-                               "i" (HV_FAST_TRAP));
-        if (arg0 == HV_EOK)
-                return arg1;
-        if (arg0 == HV_EWOULDBLOCK) {
+        ret = sun4v_tod_get(&time);
+        if (ret == HV_EOK)
+                return time;
+        if (ret == HV_EWOULDBLOCK) {
                 if (--retries > 0) {
                         udelay(100);
                         goto retry;
@@ -709,20 +701,14 @@ retry:
 
 static int hypervisor_set_time(u32 secs)
 {
-        register unsigned long func asm("%o5");
-        register unsigned long arg0 asm("%o0");
+        unsigned long ret;
         int retries = 10000;
 
 retry:
-        func = HV_FAST_TOD_SET;
-        arg0 = secs;
-        __asm__ __volatile__("ta        %4"
-                             : "=&r" (func), "=&r" (arg0)
-                             : "0" (func), "1" (arg0),
-                               "i" (HV_FAST_TRAP));
-        if (arg0 == HV_EOK)
+        ret = sun4v_tod_set(secs);
+        if (ret == HV_EOK)
                 return 0;
-        if (arg0 == HV_EWOULDBLOCK) {
+        if (ret == HV_EWOULDBLOCK) {
                 if (--retries > 0) {
                         udelay(100);
                         goto retry;