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boardctl: add board control api to start slave core

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This interface may be used by application specific logic to start
specified slave cpu core under the pseudo AMP case which is different
with armv7-a/armv8-a SMP. Support for this function is required by
board-level logic if CONFIG_BOARDCTL_START_CPU is selected.

Signed-off-by: wanggang26 <wanggang26@xiaomi.com>
This commit is contained in:
wanggang26 2024-06-14 11:04:39 +08:00 committed by Xiang Xiao
parent d2591380ae
commit 872208fdf8
4 changed files with 41 additions and 1 deletions
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8
boards/Kconfig
View File

@ -4828,6 +4828,14 @@ config BOARDCTL_IRQ_AFFINITY
---help---
Enables support for Set an IRQ affinity to CPUs by software.
config BOARDCTL_START_CPU
bool "Start slave cpu"
default n
---help---
Enables support for the BOARDIOC_START_CPU boardctl() command.
Architecture specific logic must provide the board_start_cpu()
interface.
config BOARDCTL_IOCTL
bool "Board-specific boardctl() commands"
default n

16
boards/boardctl.c
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@ -886,6 +886,22 @@ int boardctl(unsigned int cmd, uintptr_t arg)
break;
#endif
#ifdef CONFIG_BOARDCTL_START_CPU
/* CMD: BOARDIOC_START_CPU
* DESCRIPTION: Start specified slave core by master core
* ARG: Integer value for cpu core id.
* CONFIGURATION: CONFIG_BOARDCTL_START_CPU
* DEPENDENCIES: Board logic must provide the
* board_start_cpu() interface.
*/
case BOARDIOC_START_CPU:
{
ret = board_start_cpu((int)arg);
}
break;
#endif
default:
{
#ifdef CONFIG_BOARDCTL_IOCTL

15
include/nuttx/board.h
View File

@ -855,6 +855,21 @@ void board_init_rngseed(void);
int board_reset_cause(FAR struct boardioc_reset_cause_s *cause);
#endif
/****************************************************************************
* Name: board_start_cpu
*
* Description:
* This interface may be used by application specific logic to start
* specified slave cpu core under the pseudo AMP case which is different
* with armv7-a/armv8-a SMP. Support for this function is required by
* board-level logic if CONFIG_BOARDCTL_START_CPU is selected.
*
****************************************************************************/
#ifdef CONFIG_BOARDCTL_START_CPU
int board_start_cpu(int cpuid);
#endif
#undef EXTERN
#ifdef __cplusplus
}

3
include/sys/boardctl.h
View File

@ -213,6 +213,7 @@
#define BOARDIOC_BOOT_IMAGE _BOARDIOC(0x0014)
#define BOARDIOC_RESET_CAUSE _BOARDIOC(0x0015)
#define BOARDIOC_IRQ_AFFINITY _BOARDIOC(0x0016)
#define BOARDIOC_START_CPU _BOARDIOC(0x0017)
/* If CONFIG_BOARDCTL_IOCTL=y, then board-specific commands will be support.
* In this case, all commands not recognized by boardctl() will be forwarded
@ -221,7 +222,7 @@
* User defined board commands may begin with this value:
*/
#define BOARDIOC_USER _BOARDIOC(0x0017)
#define BOARDIOC_USER _BOARDIOC(0x0018)
/****************************************************************************
* Public Type Definitions