sh: Move over and enable FPU support for SH-5.
Paul Mundt [Mon, 19 Nov 2007 10:13:38 +0000 (19:13 +0900)]
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/Kconfig.sh64
arch/sh/kernel/cpu/sh5/Makefile
arch/sh/kernel/cpu/sh5/fpu.c [moved from arch/sh64/kernel/fpu.c with 99% similarity]
arch/sh/kernel/process_64.c
arch/sh/kernel/signal_64.c

index 10f5d30..e37cd8c 100644 (file)
@@ -83,6 +83,7 @@ choice
 
 config CPU_SH5
        bool "SH-5"
+       select CPU_HAS_FPU
 
 endchoice
 
index 7ea1073..6d388e8 100644 (file)
@@ -1,3 +1,4 @@
 obj-y := entry.o switchto.o
 
 obj-$(CONFIG_KALLSYMS)         += unwind.o
+obj-$(CONFIG_SH_FPU)           += fpu.o
similarity index 99%
rename from arch/sh64/kernel/fpu.c
rename to arch/sh/kernel/cpu/sh5/fpu.c
index 8ad4ed6..d3f5e74 100644 (file)
@@ -152,7 +152,7 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
        if (last_task_used_math == current)
                return;
 
-       grab_fpu();
+       enable_fpu();
        if (last_task_used_math != NULL) {
                /* Other processes fpu state, save away */
                fpsave(&last_task_used_math->thread.fpu.hard);
@@ -165,6 +165,6 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
                fpload(&init_fpuregs.hard);
                 set_used_math();
         }
-       release_fpu();
+       disable_fpu();
 }
 
index 0761af4..0c2bc61 100644 (file)
@@ -469,9 +469,9 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
        fpvalid = !!tsk_used_math(tsk);
        if (fpvalid) {
                if (current == last_task_used_math) {
-                       grab_fpu();
+                       enable_fpu();
                        fpsave(&tsk->thread.fpu.hard);
-                       release_fpu();
+                       disable_fpu();
                        last_task_used_math = 0;
                        regs->sr |= SR_FD;
                }
@@ -496,9 +496,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 
 #ifdef CONFIG_SH_FPU
        if(last_task_used_math == current) {
-               grab_fpu();
+               enable_fpu();
                fpsave(&current->thread.fpu.hard);
-               release_fpu();
+               disable_fpu();
                last_task_used_math = NULL;
                regs->sr |= SR_FD;
        }
index 069fb60..08f403e 100644 (file)
@@ -211,9 +211,9 @@ setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
                return err;
 
        if (current == last_task_used_math) {
-               grab_fpu();
+               enable_fpu();
                fpsave(&current->thread.fpu.hard);
-               release_fpu();
+               disable_fpu();
                last_task_used_math = NULL;
                regs->sr |= SR_FD;
        }