sh: prefetch early exception data on sh4/sh4a.

[linux-2.6-omap-h63xx.git] / arch / sh / kernel / cpu / sh3 / entry.S

diff --git a/arch/sh/kernel/cpu/sh3/entry.S b/arch/sh/kernel/cpu/sh3/entry.S
index 0271fe08de27032b74c7d14fd3995919f5295e64..e984e94394ec34b96ba5d884b8bcce3c0b9eafce 100644 (file)
--- a/arch/sh/kernel/cpu/sh3/entry.S
+++ b/arch/sh/kernel/cpu/sh3/entry.S
@@ -463,9 +463,11 @@ tlb_miss:
        sts     pr, k3          ! save original pr value in k3
 
 handle_exception:
+       mova    exception_data, k0
+
        ! Setup stack and save DSP context (k0 contains original r15 on return)
        bsr     prepare_stack_save_dsp
-        nop
+        PREF(k0)
 
        ! Save registers / Switch to bank 0
        mov.l   5f, k2          ! vector register address
@@ -556,10 +558,11 @@ ENTRY(handle_interrupt)
 11:
 #endif /* defined(CONFIG_KGDB) */
        sts     pr, k3          ! save original pr value in k3
+       mova    exception_data, k0
 
        ! Setup stack and save DSP context (k0 contains original r15 on return)
        bsr     prepare_stack_save_dsp
-        nop
+        PREF(k0)
 
        ! Save registers / Switch to bank 0
        bsr     save_regs       ! needs original pr value in k3