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/* SPDX-License-Identifier: GPL-2.0 */
! Copyright 2005,2006,2007,2009 Imagination Technologies
#include <linux/init.h>
#include <asm/metag_mem.h>
#include <generated/asm-offsets.h>
#undef __exit
__HEAD
! Setup the stack and get going into _metag_start_kernel
.global __start
.type __start,function
__start:
! D1Ar1 contains pTBI (ISTAT)
! D0Ar2 contains pTBI
! D1Ar3 contains __pTBISegs
! D0Ar4 contains kernel arglist pointer
MOVT D0Re0,#HI(___pTBIs)
ADD D0Re0,D0Re0,#LO(___pTBIs)
SETL [D0Re0],D0Ar2,D1Ar1
MOVT D0Re0,#HI(___pTBISegs)
ADD D0Re0,D0Re0,#LO(___pTBISegs)
SETD [D0Re0],D1Ar3
MOV A0FrP,#0
MOV D0Re0,#0
MOV D1Re0,#0
MOV D1Ar3,#0
MOV D1Ar1,D0Ar4 !Store kernel boot params
MOV D1Ar5,#0
MOV D0Ar6,#0
#ifdef CONFIG_METAG_DSP
MOV D0.8,#0
#endif
MOVT A0StP,#HI(_init_thread_union)
ADD A0StP,A0StP,#LO(_init_thread_union)
ADD A0StP,A0StP,#THREAD_INFO_SIZE
MOVT D1RtP,#HI(_metag_start_kernel)
CALL D1RtP,#LO(_metag_start_kernel)
.size __start,.-__start
!! Needed by TBX
.global __exit
.type __exit,function
__exit:
XOR TXENABLE,D0Re0,D0Re0
.size __exit,.-__exit
#ifdef CONFIG_SMP
.global _secondary_startup
.type _secondary_startup,function
_secondary_startup:
#if CONFIG_PAGE_OFFSET < LINGLOBAL_BASE
! In case GCOn has just been turned on we need to fence any writes that
! the boot thread might have performed prior to coherency taking effect.
MOVT D0Re0,#HI(LINSYSEVENT_WR_ATOMIC_UNLOCK)
MOV D1Re0,#0
SETD [D0Re0], D1Re0
#endif
MOVT A0StP,#HI(_secondary_data_stack)
ADD A0StP,A0StP,#LO(_secondary_data_stack)
GETD A0StP,[A0StP]
ADD A0StP,A0StP,#THREAD_INFO_SIZE
B _secondary_start_kernel
.size _secondary_startup,.-_secondary_startup
#endif
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