cache.h File Reference

#include <zephyr/cache.h>

Go to the source code of this file.

Functions
void	cache_data_enable (void)
	Enable d-cache. More...
void	cache_data_disable (void)
	Disable d-cache. More...
void	cache_instr_enable (void)
	Enable i-cache. More...
void	cache_instr_disable (void)
	Disable i-cache. More...
int	cache_data_all (int op)
	Write-back / Invalidate / Write-back + Invalidate all d-cache. More...
int	cache_data_range (void *addr, size_t size, int op)
	Write-back / Invalidate / Write-back + Invalidate d-cache lines. More...
int	cache_instr_all (int op)
	Write-back / Invalidate / Write-back + Invalidate all i-cache. More...
int	cache_instr_range (void *addr, size_t size, int op)
	Write-back / Invalidate / Write-back + Invalidate i-cache lines. More...

Function Documentation

cache_data_all()

int cache_data_all

(

int

op

)

Write-back / Invalidate / Write-back + Invalidate all d-cache.

Write-back, Invalidate or Write-back + Invalidate the whole d-cache.

Parameters

op	Operation to perform (one of the K_CACHE_* operations)

Return values

0	On success
-ENOTSUP	If the operation is not supported

cache_data_disable()

void cache_data_disable

(

void

)

Disable d-cache.

Disable the d-cache.

cache_data_enable()

void cache_data_enable

(

void

)

Enable d-cache.

Enable the d-cache.

cache_data_range()

int cache_data_range	(	void *	addr,
		size_t	size,
		int	op
	)

Write-back / Invalidate / Write-back + Invalidate d-cache lines.

No alignment is required for either addr or size, but since arch_dcache_range() iterates on the d-cache lines, a d-cache line alignment for both is optimal.

The d-cache line size is specified either via the CONFIG_DCACHE_LINE_SIZE kconfig option or it is detected at runtime.

Parameters

addr	The pointer to start the multi-line operation
size	The number of bytes that are to be acted on
op	Operation to perform (one of the K_CACHE_* operations)

Return values

0	On success
-ENOTSUP	If the operation is not supported

cache_instr_all()

int cache_instr_all

(

int

op

)

Write-back / Invalidate / Write-back + Invalidate all i-cache.

Write-back, Invalidate or Write-back + Invalidate the whole i-cache.

Parameters

op	Operation to perform (one of the K_CACHE_* operations)

Return values

0	On success
-ENOTSUP	If the operation is not supported

cache_instr_disable()

void cache_instr_disable

(

void

)

Disable i-cache.

Disable the i-cache.

cache_instr_enable()

void cache_instr_enable

(

void

)

Enable i-cache.

Enable the i-cache.

cache_instr_range()

int cache_instr_range	(	void *	addr,
		size_t	size,
		int	op
	)

Write-back / Invalidate / Write-back + Invalidate i-cache lines.

No alignment is required for either addr or size, but since arch_icache_range() iterates on the i-cache lines, an i-cache line alignment for both is optimal.

The i-cache line size is specified either via the CONFIG_ICACHE_LINE_SIZE kconfig option or it is detected at runtime.

Parameters

addr	The pointer to start the multi-line operation
size	The number of bytes that are to be acted on
op	Operation to perform (one of the K_CACHE_* operations)

Return values

0	On success
-ENOTSUP	If the operation is not supported