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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/mips/kernel/smp-up.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/kernel/smp-up.c')
-rw-r--r-- | arch/mips/kernel/smp-up.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/mips/kernel/smp-up.c b/arch/mips/kernel/smp-up.c new file mode 100644 index 000000000..525d3196f --- /dev/null +++ b/arch/mips/kernel/smp-up.c @@ -0,0 +1,79 @@ +/* + * 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) 2006, 07 by Ralf Baechle (ralf@linux-mips.org) + * + * Symmetric Uniprocessor (TM) Support + */ +#include <linux/kernel.h> +#include <linux/sched.h> + +/* + * Send inter-processor interrupt + */ +static void up_send_ipi_single(int cpu, unsigned int action) +{ + panic(KERN_ERR "%s called", __func__); +} + +static inline void up_send_ipi_mask(const struct cpumask *mask, + unsigned int action) +{ + panic(KERN_ERR "%s called", __func__); +} + +/* + * After we've done initial boot, this function is called to allow the + * board code to clean up state, if needed + */ +static void up_init_secondary(void) +{ +} + +static void up_smp_finish(void) +{ +} + +/* + * Firmware CPU startup hook + */ +static int up_boot_secondary(int cpu, struct task_struct *idle) +{ + return 0; +} + +static void __init up_smp_setup(void) +{ +} + +static void __init up_prepare_cpus(unsigned int max_cpus) +{ +} + +#ifdef CONFIG_HOTPLUG_CPU +static int up_cpu_disable(void) +{ + return -ENOSYS; +} + +static void up_cpu_die(unsigned int cpu) +{ + BUG(); +} +#endif + +const struct plat_smp_ops up_smp_ops = { + .send_ipi_single = up_send_ipi_single, + .send_ipi_mask = up_send_ipi_mask, + .init_secondary = up_init_secondary, + .smp_finish = up_smp_finish, + .boot_secondary = up_boot_secondary, + .smp_setup = up_smp_setup, + .prepare_cpus = up_prepare_cpus, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_disable = up_cpu_disable, + .cpu_die = up_cpu_die, +#endif +}; |