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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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205353fa06
Modify SETUP_MMU macro to fit on both MMU-on or MMU-off enviornment and vmlinux could bootup from MMU off enviornment for some cases. Unify the style of _start and _start_smp_secondary in head.S to make head.S looks more concise and easy to understand. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Arnd Bergmann <arnd@arndb.de>
32 lines
492 B
ArmAsm
32 lines
492 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/linkage.h>
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#include <linux/init.h>
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#include <asm/page.h>
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#include <abi/entry.h>
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__HEAD
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ENTRY(_start)
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SETUP_MMU
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/* set stack point */
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lrw r6, init_thread_union + THREAD_SIZE
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mov sp, r6
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jmpi csky_start
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END(_start)
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#ifdef CONFIG_SMP
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.align 10
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ENTRY(_start_smp_secondary)
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SETUP_MMU
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/* set stack point */
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lrw r6, secondary_stack
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ld.w r6, (r6, 0)
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mov sp, r6
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jmpi csky_start_secondary
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END(_start_smp_secondary)
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#endif
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