Changeset 3de9e5e in mainline

Timestamp:

2005-08-31T09:40:58Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9756131

Parents:

b8f0c10

Message:

PPC interrupt high/low/restore

File:

• arch/ppc/include/asm.h (modified) (3 diffs)

arch/ppc/include/asm.h

@@ -41 +41 @@
         pri_t v;
         __asm__ volatile (
-                "\n"
+                "mfmsr %0\n"
+                "mfmsr %%r31\n"
+                "ori %%r31, %%r31, 1 << 15\n"
+                "mtmsr %%r31\n"
                 : "=r" (v)
+                :
+                : "%r31"
         );
         return v;
@@ -55 +60 @@
         pri_t v;
         __asm__ volatile (
-                "\n"
+                "mfmsr %0\n"
+                "mfmsr %%r31\n"
+                "rlwinm %%r31, %%r31, 0, 17, 15\n"
+                "mtmsr %%r31\n"
                 : "=r" (v)
+                :
+                : "%r31"
         );
         return v;
@@ -67 +77 @@
 static inline void cpu_priority_restore(pri_t pri) {
         __asm__ volatile (
-                "\n"
-                : : "r" (pri)
+                "mfmsr %%r31\n"
+                "rlwimi  %0, %%r31, 0, 17, 15\n"
+                "mtmsr %0\n"
+                : "=r" (pri)
+                : "0" (pri)
+                : "%r31"
         );
 }