diff options
Diffstat (limited to 'arch/ia64/kernel/mca_asm.S')
| -rw-r--r-- | arch/ia64/kernel/mca_asm.S | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S index a06d46548ff9..8d2eabe3119f 100644 --- a/arch/ia64/kernel/mca_asm.S +++ b/arch/ia64/kernel/mca_asm.S @@ -1073,3 +1073,30 @@ GLOBAL_ENTRY(ia64_get_rnat) mov ar.rsc=3 br.ret.sptk.many rp END(ia64_get_rnat) + + +// void ia64_set_psr_mc(void) +// +// Set psr.mc bit to mask MCA/INIT. +GLOBAL_ENTRY(ia64_set_psr_mc) + rsm psr.i | psr.ic // disable interrupts + ;; + srlz.d + ;; + mov r14 = psr // get psr{36:35,31:0} + movl r15 = 1f + ;; + dep r14 = -1, r14, PSR_MC, 1 // set psr.mc + ;; + dep r14 = -1, r14, PSR_IC, 1 // set psr.ic + ;; + dep r14 = -1, r14, PSR_BN, 1 // keep bank1 in use + ;; + mov cr.ipsr = r14 + mov cr.ifs = r0 + mov cr.iip = r15 + ;; + rfi +1: + br.ret.sptk.many rp +END(ia64_set_psr_mc) |