neorv32_smp.h File Reference

Symmetric multiprocessing (SMP) library header file. More...

#include <neorv32.h>

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Functions
static uint32_t	neorv32_smp_whoami (void)
Prototypes
int	neorv32_smp_launch (int(*entry_point)(void), uint8_t *stack_memory, size_t stack_size_bytes)

Detailed Description

Symmetric multiprocessing (SMP) library header file.

Function Documentation

neorv32_smp_launch()

int neorv32_smp_launch	(	int(*)(void)	entry_point,
		uint8_t *	stack_memory,
		size_t	stack_size_bytes
	)

Configure and start secondary CPU core (core 1).

Warning

This function can be executed on core 0 only and will override MTIMECMP of hart 1.

Parameters

[in]	entry_point	Core's main function; must be of type "int entry_point(void)".
[in]	stack_memory	Pointer to beginning of core's stack memory array.
[in]	stack_size_bytes	Core's stack size in bytes.

Returns

0 if launching succeeded, -1 if invalid hart ID or CLINT not available, -2 if core is not responding.

neorv32_smp_whoami()

static uint32_t neorv32_smp_whoami ( void  )

inlinestatic

Get core/hart ID of the CPU that is executing this function.

Returns

Core ID from mhartid CSR.