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/* Copyright 2013-2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <asm-utils.h>
#include <asm-offsets.h>
#include <processor.h>
#include <stack.h>
#define OLD_BINUTILS 1
.section ".text","ax"
.balign 0x10
/* void set_hid0(unsigned long hid0) */
.global set_hid0
set_hid0:
sync
mtspr SPR_HID0,%r3
mfspr %r3,SPR_HID0
mfspr %r3,SPR_HID0
mfspr %r3,SPR_HID0
mfspr %r3,SPR_HID0
mfspr %r3,SPR_HID0
mfspr %r3,SPR_HID0
isync
blr
.global __trigger_attn
__trigger_attn:
sync
isync
attn
blr
#ifdef STACK_CHECK_ENABLED
.global _mcount
_mcount:
mr %r3,%r1
mflr %r4
b __mcount_stack_check
#endif
.global cleanup_local_tlb
cleanup_local_tlb:
/* Clean the TLB */
li %r3,512
mtctr %r3
li %r4,0xc00 /* IS field = 0b11 */
ptesync
1: tlbiel %r4
addi %r4,%r4,0x1000
bdnz 1b
ptesync
blr
.global cleanup_global_tlb
cleanup_global_tlb:
/* Only supported on P9 for now */
mfspr %r3,SPR_PVR
srdi %r3,%r3,16
cmpwi cr0,%r3,PVR_TYPE_P9
beq cr0,1f
cmpwi cr0,%r3,PVR_TYPE_P9P
beq cr0,1f
blr
/* Sync out previous updates */
1: ptesync
#ifndef OLD_BINUTILS
.machine "power9"
#endif
/* Lead RB with IS=11 */
li %r3,3
sldi %r3,%r3,10
li %r0,0
/* Blow up radix partition scoped translations */
#ifdef OLD_BINUTILS
.long 0x7c0b1a64
#else
tlbie %r3, %r0 /* rs */, 2 /* ric */, 1 /* prs */, 1 /* r */
#endif
eieio
tlbsync
ptesync
#ifdef OLD_BINUTILS
.long 0x7c091a64
#else
tlbie %r3, %r0 /* rs */, 2 /* ric */, 0 /* prs */, 1 /* r */
#endif
eieio
tlbsync
ptesync
/* Blow up hash partition scoped translations */
#ifdef OLD_BINUTILS
.long 0x7c0a1a64
#else
tlbie %r3, %r0 /* rs */, 2 /* ric */, 1 /* prs */, 0 /* r */
#endif
eieio
tlbsync
ptesync
#ifdef OLD_BINUTILS
.long 0x7c081a64
#else
tlbie %r3, %r0 /* rs */, 2 /* ric */, 0 /* prs */, 0 /* r */
#endif
eieio
tlbsync
ptesync
blr
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