Merge ../linux-2.6

1 files changed, 79 insertions, 0 deletions

diff --git a/drivers/char/hw_random/n2-asm.S b/drivers/char/hw_random/n2-asm.S
new file mode 100644
index 000000000000..9b6eb5cd59f6
--- /dev/null
+++ b/drivers/char/hw_random/n2-asm.S
@@ -0,0 +1,79 @@
+/* n2-asm.S: Niagara2 RNG hypervisor call assembler.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+#include <linux/linkage.h>
+#include <asm/hypervisor.h>
+#include "n2rng.h"
+
+        .text
+
+ENTRY(sun4v_rng_get_diag_ctl)
+        mov     HV_FAST_RNG_GET_DIAG_CTL, %o5
+        ta      HV_FAST_TRAP
+        retl
+         nop
+ENDPROC(sun4v_rng_get_diag_ctl)
+
+ENTRY(sun4v_rng_ctl_read_v1)
+        mov     %o1, %o3
+        mov     %o2, %o4
+        mov     HV_FAST_RNG_CTL_READ, %o5
+        ta      HV_FAST_TRAP
+        stx     %o1, [%o3]
+        retl
+         stx    %o2, [%o4]
+ENDPROC(sun4v_rng_ctl_read_v1)
+
+ENTRY(sun4v_rng_ctl_read_v2)
+        save    %sp, -192, %sp
+        mov     %i0, %o0
+        mov     %i1, %o1
+        mov     HV_FAST_RNG_CTL_READ, %o5
+        ta      HV_FAST_TRAP
+        stx     %o1, [%i2]
+        stx     %o2, [%i3]
+        stx     %o3, [%i4]
+        stx     %o4, [%i5]
+        ret
+        restore %g0, %o0, %o0
+ENDPROC(sun4v_rng_ctl_read_v2)
+
+ENTRY(sun4v_rng_ctl_write_v1)
+        mov     %o3, %o4
+        mov     HV_FAST_RNG_CTL_WRITE, %o5
+        ta      HV_FAST_TRAP
+        retl
+         stx    %o1, [%o4]
+ENDPROC(sun4v_rng_ctl_write_v1)
+
+ENTRY(sun4v_rng_ctl_write_v2)
+        mov     HV_FAST_RNG_CTL_WRITE, %o5
+        ta      HV_FAST_TRAP
+        retl
+         nop
+ENDPROC(sun4v_rng_ctl_write_v2)
+
+ENTRY(sun4v_rng_data_read_diag_v1)
+        mov     %o2, %o4
+        mov     HV_FAST_RNG_DATA_READ_DIAG, %o5
+        ta      HV_FAST_TRAP
+        retl
+         stx    %o1, [%o4]
+ENDPROC(sun4v_rng_data_read_diag_v1)
+
+ENTRY(sun4v_rng_data_read_diag_v2)
+        mov     %o3, %o4
+        mov     HV_FAST_RNG_DATA_READ_DIAG, %o5
+        ta      HV_FAST_TRAP
+        retl
+         stx    %o1, [%o4]
+ENDPROC(sun4v_rng_data_read_diag_v2)
+
+ENTRY(sun4v_rng_data_read)
+        mov     %o1, %o4
+        mov     HV_FAST_RNG_DATA_READ, %o5
+        ta      HV_FAST_TRAP
+        retl
+         stx    %o1, [%o4]
+ENDPROC(sun4v_rng_data_read)