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- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Cavium, Inc
- */
- #ifndef __ASM_MACH_PARAVIRT_KERNEL_ENTRY_H
- #define __ASM_MACH_PARAVIRT_KERNEL_ENTRY_H
- #define CP0_EBASE $15, 1
- .macro kernel_entry_setup
- #ifdef CONFIG_SMP
- mfc0 t0, CP0_EBASE
- andi t0, t0, 0x3ff # CPUNum
- beqz t0, 1f
- # CPUs other than zero goto smp_bootstrap
- j smp_bootstrap
- #endif /* CONFIG_SMP */
- 1:
- .endm
- /*
- * Do SMP slave processor setup necessary before we can safely execute
- * C code.
- */
- .macro smp_slave_setup
- mfc0 t0, CP0_EBASE
- andi t0, t0, 0x3ff # CPUNum
- slti t1, t0, NR_CPUS
- bnez t1, 1f
- 2:
- di
- wait
- b 2b # Unknown CPU, loop forever.
- 1:
- PTR_LA t1, paravirt_smp_sp
- PTR_SLL t0, PTR_SCALESHIFT
- PTR_ADDU t1, t1, t0
- 3:
- PTR_L sp, 0(t1)
- beqz sp, 3b # Spin until told to proceed.
- PTR_LA t1, paravirt_smp_gp
- PTR_ADDU t1, t1, t0
- sync
- PTR_L gp, 0(t1)
- .endm
- #endif /* __ASM_MACH_PARAVIRT_KERNEL_ENTRY_H */
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