xnu-344.32.tar.gz

[apple/xnu.git] / osfmk / ppc / machine_routines_asm.s

diff --git a/osfmk/ppc/machine_routines_asm.s b/osfmk/ppc/machine_routines_asm.s
index 436307c24b39389929af8f27ebbbb660a41d07d1..471389e4260f528751f5d50ee07a8a76d95d64a8 100644 (file)
--- a/osfmk/ppc/machine_routines_asm.s
+++ b/osfmk/ppc/machine_routines_asm.s
@@ -1338,3 +1338,18 @@ sps1:
 
 sps2:
                        blr
+
+/*
+**      ml_set_processor_voltage()
+**
+*/
+;                      Force a line boundry here
+                       .align  5
+                       .globl  EXT(ml_set_processor_voltage)
+
+LEXT(ml_set_processor_voltage)
+                       mfspr   r4, hid2                                                        ; Get HID2 value
+                       rlwimi  r4, r3, 31-hid2vmin, hid2vmin, hid2vmin                         ; Insert the voltage mode bit
+                       mtspr   hid2, r4                                                        ; Set the voltage mode
+                       sync                                                                    ; Make sure it is done
+                       blr