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Tentative fix for fast interrupts. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@14062 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Giovanni Di Sirio 2021-03-07 09:25:14 +00:00
parent f77cc7962a
commit f8d8a73645
1 changed files with 26 additions and 5 deletions
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31
os/common/ports/ARMv7-M/chcore.h
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@ -202,9 +202,19 @@
/**
* @brief Simplified priority handling flag.
* @details Activating this option makes the Kernel work in compact mode.
* In compact mode interrupts are disabled globally instead of
* raising the priority mask to some intermediate level.
* @details When this option is disabled:
* - Interrupts are not disabled globally, the priority mask BASEPRI
* is raised up to CORTEX_BASEPRI_KERNEL instead.
* - An extra structure @p port_extctx is allocated for each thread
* in order to allow safe processing of fast interrupts.
* .
* When this option is enabled:
* - Interrupts are disabled globally instead of
* raising the priority mask, this makes code generally more
* compact and faster. There is no extra @p port_extctx structure
* so less RAM is used.
* - There is no support for fast interrupts.
* .
*/
#if !defined(CORTEX_SIMPLIFIED_PRIORITY)
#define CORTEX_SIMPLIFIED_PRIORITY FALSE
@ -610,13 +620,24 @@ struct port_context {
__PORT_SETUP_CONTEXT_SYSCALL(tp, wtop); \
} while (0)
/**
* @brief Context switch area size.
*/
#if (CORTEX_SIMPLIFIED_PRIORITY == TRUE) || defined(__DOXYGEN__)
#define PORT_WA_CTX_SIZE (sizeof (struct port_intctx) + \
sizeof (struct port_extctx))
#else
#define PORT_WA_CTX_SIZE (sizeof (struct port_intctx) + \
sizeof (struct port_extctx) + \
sizeof (struct port_extctx))
#endif
/**
* @brief Computes the thread working area global size.
* @note There is no need to perform alignments in this macro.
*/
#define PORT_WA_SIZE(n) ((size_t)PORT_GUARD_PAGE_SIZE + \
sizeof (struct port_intctx) + \
sizeof (struct port_extctx) + \
(size_t)PORT_WA_CTX_SIZE + \
(size_t)(n) + \
(size_t)PORT_INT_REQUIRED_STACK)