Changeset 3412e844 in mainline for kernel/arch/arm32/include/fpu_context.h

Timestamp:

2012-11-24T02:28:47Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

f1e496a

Parents:

6e634d6

Message:

arm32: Implement basic support for FPU context switching.

Lazy fpu context switching is not supported, yet.

File:

• kernel/arch/arm32/include/fpu_context.h (modified) (1 diff)

kernel/arch/arm32/include/fpu_context.h

@@ -41 +41 @@
 #include <typedefs.h>
 
-#define FPU_CONTEXT_ALIGN    0
+#define FPU_CONTEXT_ALIGN    8
 
+/* ARM Architecture reference manual, p B-1529.
+ * We don't enable EX bit so max 32 64bit regs are stored (+2 control regs)
+ */
 typedef struct {
+        uint32_t fpuscr;
+        uint32_t fpuexc;
+        uint32_t s[64];
 } fpu_context_t;