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| author |   Paul Mundt <lethal@linux-sh.org> | 2007-11-26 20:38:36 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 13:18:57 +0900 |
| commit | 74d99a5e262229ee865f6f68528d10b82471ead6 (patch) | |
| tree | 1e2382c8779e1ee06226f9cc9acbf9a63eb5fc44 /arch/sh/kernel/cpu/sh2 | |
| parent | sh: Add SH7263 CPU support. (diff) | |
| download | linux-dev-74d99a5e262229ee865f6f68528d10b82471ead6.tar.xz linux-dev-74d99a5e262229ee865f6f68528d10b82471ead6.zip | |
sh: SH-2A FPU support.
Signed-off-by: Kieran Bingham <kbingham@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/sh2')
| -rw-r--r-- | arch/sh/kernel/cpu/sh2/entry.S | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/sh/kernel/cpu/sh2/entry.S b/arch/sh/kernel/cpu/sh2/entry.S index 4ff2334b4a38..7a26569e7956 100644 --- a/arch/sh/kernel/cpu/sh2/entry.S +++ b/arch/sh/kernel/cpu/sh2/entry.S @@ -149,6 +149,14 @@ ENTRY(exception_handler) mov #32,r8 cmp/hs r8,r9 bt trap_entry ! 64 > vec >= 32 is trap + +#if defined(CONFIG_SH_FPU) + mov #13,r8 + cmp/eq r8,r9 + bt 10f ! fpu + nop +#endif + mov.l 4f,r8 mov r9,r4 shll2 r9 @@ -158,6 +166,10 @@ ENTRY(exception_handler) cmp/eq r9,r8 bf 3f mov.l 8f,r8 ! unhandled exception +#if defined(CONFIG_SH_FPU) +10: + mov.l 9f, r8 ! unhandled exception +#endif 3: mov.l 5f,r10 jmp @r8 @@ -177,7 +189,10 @@ interrupt_entry: 6: .long ret_from_irq 7: .long do_IRQ 8: .long do_exception_error - +#ifdef CONFIG_SH_FPU +9: .long fpu_error_trap_handler +#endif + trap_entry: mov #0x30,r8 cmp/ge r8,r9 ! vector 0x20-0x2f is systemcall |