sh: Bring the SH-5 FPU in line with the SH-4 FPU API.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

4 files changed, 45 insertions, 43 deletions

diff --git a/include/asm-sh/fpu.h b/include/asm-sh/fpu.h
new file mode 100644
index 000000000000..33db698a6b4d
--- /dev/null
+++ b/include/asm-sh/fpu.h
@@ -0,0 +1,44 @@
+#ifndef __ASM_SH_FPU_H
+#define __ASM_SH_FPU_H
+
+#define SR_FD    0x00008000
+
+#ifndef __ASSEMBLY__
+#include <asm/ptrace.h>
+
+#ifdef CONFIG_SH_FPU
+static inline void release_fpu(struct pt_regs *regs)
+{
+        regs->sr |= SR_FD;
+}
+
+static inline void grab_fpu(struct pt_regs *regs)
+{
+        regs->sr &= ~SR_FD;
+}
+
+struct task_struct;
+
+extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
+#else
+#define release_fpu(regs)       do { } while (0)
+#define grab_fpu(regs)          do { } while (0)
+#define save_fpu(tsk, regs)     do { } while (0)
+#endif
+
+#define unlazy_fpu(tsk, regs) do {                      \
+        if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {   \
+                save_fpu(tsk, regs);                    \
+        }                                               \
+} while (0)
+
+#define clear_fpu(tsk, regs) do {                               \
+        if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {           \
+                clear_tsk_thread_flag(tsk, TIF_USEDFPU);        \
+                release_fpu(regs);                              \
+        }                                                       \
+} while (0)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_SH_FPU_H */
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h
index f3bd82e95898..3ae2a1c223f2 100644
--- a/include/asm-sh/processor.h
+++ b/include/asm-sh/processor.h
@@ -2,9 +2,9 @@
 #define __ASM_SH_PROCESSOR_H
 
 #include <asm/cpu-features.h>
+#include <asm/fpu.h>
 
 #ifndef __ASSEMBLY__
-
 /*
  *  CPU type and hardware bug flags. Kept separately for each CPU.
  *
diff --git a/include/asm-sh/processor_32.h b/include/asm-sh/processor_32.h
index 1ad74633c009..a7edaa1a870c 100644
--- a/include/asm-sh/processor_32.h
+++ b/include/asm-sh/processor_32.h
@@ -65,7 +65,6 @@ extern struct sh_cpuinfo cpu_data[];
  * IMASK-bit:
  *     Interrupt level mask
  */
-#define SR_FD           0x00008000
 #define SR_DSP          0x00001000
 #define SR_IMASK        0x000000f0
 
@@ -178,31 +177,6 @@ static __inline__ void enable_fpu(void)
                              : "r" (~SR_FD));
 }
 
-static __inline__ void release_fpu(struct pt_regs *regs)
-{
-        regs->sr |= SR_FD;
-}
-
-static __inline__ void grab_fpu(struct pt_regs *regs)
-{
-        regs->sr &= ~SR_FD;
-}
-
-extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
-
-#define unlazy_fpu(tsk, regs) do {                      \
-        if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {   \
-                save_fpu(tsk, regs);                    \
-        }                                               \
-} while (0)
-
-#define clear_fpu(tsk, regs) do {                               \
-        if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) {           \
-                clear_tsk_thread_flag(tsk, TIF_USEDFPU);        \
-                release_fpu(regs);                              \
-        }                                                       \
-} while (0)
-
 /* Double presision, NANS as NANS, rounding to nearest, no exceptions */
 #define FPSCR_INIT  0x00080000
 
diff --git a/include/asm-sh/processor_64.h b/include/asm-sh/processor_64.h
index f54648229231..99c22b14a85b 100644
--- a/include/asm-sh/processor_64.h
+++ b/include/asm-sh/processor_64.h
@@ -102,8 +102,6 @@ extern struct sh_cpuinfo cpu_data[];
  *     Single step bit
  *
  */
-#define SR_FD    0x00008000
-
 #if defined(CONFIG_SH64_SR_WATCH)
 #define SR_MMU   0x84000000
 #else
@@ -243,16 +241,6 @@ static inline void enable_fpu(void)
                              : "r" (~SR_FD));
 }
 
-static inline void release_fpu(struct pt_regs *regs)
-{
-        regs->sr |= SR_FD;
-}
-
-static inline void grab_fpu(struct pt_regs *regs)
-{
-        regs->sr &= ~SR_FD;
-}
-
 /* Round to nearest, no exceptions on inexact, overflow, underflow,
    zero-divide, invalid.  Configure option for whether to flush denorms to
    zero, or except if a denorm is encountered.  */
@@ -263,13 +251,9 @@ static inline void grab_fpu(struct pt_regs *regs)
 #endif
 
 #ifdef CONFIG_SH_FPU
-/* Save the current FP regs */
-void fpsave(struct sh_fpu_hard_struct *fpregs);
-
 /* Initialise the FP state of a task */
 void fpinit(struct sh_fpu_hard_struct *fpregs);
 #else
-#define fpsave(fpregs)  do { } while (0)
 #define fpinit(fpregs)  do { } while (0)
 #endif