diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/mips/netlogic/xlr/wakeup.c (renamed from arch/mips/netlogic/xlr/smpboot.S) | 80 |
1 files changed, 24 insertions, 56 deletions
diff --git a/arch/mips/netlogic/xlr/smpboot.S b/arch/mips/netlogic/xlr/wakeup.c index 8cb7889ce0cc..db5d987d4881 100644 --- a/arch/mips/netlogic/xlr/smpboot.S +++ b/arch/mips/netlogic/xlr/wakeup.c @@ -33,68 +33,36 @@ */ #include <linux/init.h> +#include <linux/threads.h> #include <asm/asm.h> #include <asm/asm-offsets.h> -#include <asm/regdef.h> #include <asm/mipsregs.h> +#include <asm/addrspace.h> +#include <asm/string.h> -/* - * Early code for secondary CPUs. This will get them out of the bootloader - * code and into linux. Needed because the bootloader area will be taken - * and initialized by linux. - */ - __CPUINIT -NESTED(prom_pre_boot_secondary_cpus, 16, sp) - .set mips64 - mfc0 t0, $15, 1 # read ebase - andi t0, 0x1f # t0 has the processor_id() - sll t0, 2 # offset in cpu array - - PTR_LA t1, nlm_cpu_ready # mark CPU ready - PTR_ADDU t1, t0 - li t2, 1 - sw t2, 0(t1) - - PTR_LA t1, nlm_cpu_unblock - PTR_ADDU t1, t0 -1: lw t2, 0(t1) # wait till unblocked - beqz t2, 1b - nop +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/mips-extns.h> - PTR_LA t1, nlm_next_sp - PTR_L sp, 0(t1) - PTR_LA t1, nlm_next_gp - PTR_L gp, 0(t1) +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> - PTR_LA t0, nlm_early_init_secondary - jalr t0 - nop - - PTR_LA t0, smp_bootstrap - jr t0 - nop -END(prom_pre_boot_secondary_cpus) - __FINIT - -/* - * NMI code, used for CPU wakeup, copied to reset entry - */ -NESTED(nlm_boot_smp_nmi, 0, sp) - .set push - .set noat - .set mips64 - .set noreorder +int __cpuinit xlr_wakeup_secondary_cpus(void) +{ + unsigned int i, boot_cpu; - /* Clear the NMI and BEV bits */ - MFC0 k0, CP0_STATUS - li k1, 0xffb7ffff - and k0, k0, k1 - MTC0 k0, CP0_STATUS + /* + * In case of RMI boot, hit with NMI to get the cores + * from bootloader to linux code. + */ + boot_cpu = hard_smp_processor_id(); + nlm_set_nmi_handler(nlm_rmiboot_preboot); + for (i = 0; i < NR_CPUS; i++) { + if (i == boot_cpu || (nlm_cpumask & (1u << i)) == 0) + continue; + nlm_pic_send_ipi(nlm_pic_base, i, 1, 1); /* send NMI */ + } - PTR_LA k1, secondary_entry_point - PTR_L k0, 0(k1) - jr k0 - nop - .set pop -END(nlm_boot_smp_nmi) + return 0; +} |
