diff options
Diffstat (limited to 'arch/sparc64/kernel/tsb.S')
| -rw-r--r-- | arch/sparc64/kernel/tsb.S | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S index fe266bad0a2..08405ed6928 100644 --- a/arch/sparc64/kernel/tsb.S +++ b/arch/sparc64/kernel/tsb.S @@ -126,6 +126,23 @@ winfix_trampoline: wrpr %g3, %tnpc ! Write it into TNPC done ! Trap return + /* Insert an entry into the TSB. + * + * %o0: TSB entry pointer + * %o1: tag + * %o2: pte + */ + .align 32 + .globl tsb_insert +tsb_insert: + rdpr %pstate, %o5 + wrpr %o5, PSTATE_IE, %pstate + TSB_LOCK_TAG(%o0, %g2, %g3) + TSB_WRITE(%o0, %o2, %o1) + wrpr %o5, %pstate + retl + nop + /* Reload MMU related context switch state at * schedule() time. * |