Changeset c6c4fce9 in rtems

Timestamp:

Jul 12, 2016, 8:02:40 AM (5 years ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

4.11

Children:

dc0f537b

Parents:

3f72dda6

git-author:

Sebastian Huber <sebastian.huber@…> (07/12/16 08:02:40)

git-committer:

Sebastian Huber <sebastian.huber@…> (07/19/16 05:40:40)

Message:

bsps/powerpc: Fix AltiVec? enable

There must be an isync after the mtmsr to ensure that the AltiVec? is
enabled for subsequent instructions.

Close #2760.

Location:

c/src/lib/libbsp/powerpc

Files:

• mvme5500/start/start.S (modified) (1 diff)
• psim/start/start.S (modified) (1 diff)
• shared/start/start.S (modified) (1 diff)

c/src/lib/libbsp/powerpc/mvme5500/start/start.S

@@ -69 +69 @@
         oris  r0, r0, (1<<(31-16-6))
         mtmsr r0
+        isync
         /*
          * set vscr and vrsave to known values

c/src/lib/libbsp/powerpc/psim/start/start.S

@@ -104 +104 @@
         oris  r0, r0, (1<<(31-16-6))
         mtmsr r0
+        isync
         /*
          * set vscr and vrsave to known values

c/src/lib/libbsp/powerpc/shared/start/start.S

@@ -65 +65 @@
         oris  r0, r0, (1<<(31-16-6))
         mtmsr r0
+        isync
         /*
          * set vscr and vrsave to known values