diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2013-01-18 15:12:26 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-02-15 23:16:16 +0530 |
| commit | 10b1271875abb9d590c14fa6c8b24b0d6f768ca2 (patch) | |
| tree | 6abcf7cd3c787eaec128fb428da11e0eea8f7c8b /arch/arc/include/asm | |
| parent | fc7943d29e9f6f5f6d4b111120b66ec86501673e (diff) | |
| download | linux-10b1271875abb9d590c14fa6c8b24b0d6f768ca2.tar.bz2 | |
ARC: [Review] Multi-platform image #7: SMP common code to use callbacks
This again is for switch from singleton platform SMP API to
multi-platform paradigm
Platform code is not yet setup to populate the callbacks, that happens
in next commit
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arc/include/asm')
| -rw-r--r-- | arch/arc/include/asm/smp.h | 36 |
1 files changed, 15 insertions, 21 deletions
diff --git a/arch/arc/include/asm/smp.h b/arch/arc/include/asm/smp.h index 0cff3a548136..c4fb211dcd25 100644 --- a/arch/arc/include/asm/smp.h +++ b/arch/arc/include/asm/smp.h @@ -31,6 +31,7 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); */ extern void __init smp_init_cpus(void); extern void __init first_lines_of_secondary(void); +extern const char *arc_platform_smp_cpuinfo(void); /* * API expected BY platform smp code (FROM arch smp code) @@ -41,29 +42,22 @@ extern void __init first_lines_of_secondary(void); extern int smp_ipi_irq_setup(int cpu, int irq); /* - * APIs expected FROM platform smp code - * - * arc_platform_smp_cpuinfo: - * returns a string containing info for /proc/cpuinfo - * - * arc_platform_smp_wait_to_boot: - * Called from early bootup code for non-Master CPUs to "park" them + * struct plat_smp_ops - SMP callbacks provided by platform to ARC SMP * - * arc_platform_smp_wakeup_cpu: - * Called from __cpu_up (Master CPU) to kick start another one - * - * arc_platform_ipi_send: - * Takes @cpumask to which IPI(s) would be sent. - * The actual msg-id/buffer is manager in arch-common code - * - * arc_platform_ipi_clear: - * Takes @cpu which got IPI at @irq to do any IPI clearing + * @info: SoC SMP specific info for /proc/cpuinfo etc + * @cpu_kick: For Master to kickstart a cpu (optionally at a PC) + * @ipi_send: To send IPI to a @cpumask + * @ips_clear: To clear IPI received by @cpu at @irq */ -extern const char *arc_platform_smp_cpuinfo(void); -extern void arc_platform_smp_wait_to_boot(int cpu); -extern void arc_platform_smp_wakeup_cpu(int cpu, unsigned long pc); -extern void arc_platform_ipi_send(const struct cpumask *callmap); -extern void arc_platform_ipi_clear(int cpu, int irq); +struct plat_smp_ops { + const char *info; + void (*cpu_kick)(int cpu, unsigned long pc); + void (*ipi_send)(void *callmap); + void (*ipi_clear)(int cpu, int irq); +}; + +/* TBD: stop exporting it for direct population by platform */ +extern struct plat_smp_ops plat_smp_ops; #endif /* CONFIG_SMP */ |