diff options
| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-12-26 10:43:49 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-12-26 10:43:49 +0000 |
| commit | 3f82a81f544b45d82924dc6b080a5c63e9cf7c09 (patch) | |
| tree | 0a670cb7ec87b742d683a20daf70e06ffdfb71c8 /os/ports/GCC/ARMCMx | |
| parent | 89e829f55cdbc01646f931039618ae99ed262eaf (diff) | |
| download | ChibiOS-3f82a81f544b45d82924dc6b080a5c63e9cf7c09.tar.gz ChibiOS-3f82a81f544b45d82924dc6b080a5c63e9cf7c09.tar.bz2 ChibiOS-3f82a81f544b45d82924dc6b080a5c63e9cf7c09.zip | |
GCC Cortex-Mx ports optimization.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3659 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/ports/GCC/ARMCMx')
| -rw-r--r-- | os/ports/GCC/ARMCMx/chcore_v6m.h | 17 | ||||
| -rw-r--r-- | os/ports/GCC/ARMCMx/chcore_v7m.c | 2 | ||||
| -rw-r--r-- | os/ports/GCC/ARMCMx/chcore_v7m.h | 17 |
3 files changed, 35 insertions, 1 deletions
diff --git a/os/ports/GCC/ARMCMx/chcore_v6m.h b/os/ports/GCC/ARMCMx/chcore_v6m.h index 0997ddeea..34d1ee911 100644 --- a/os/ports/GCC/ARMCMx/chcore_v6m.h +++ b/os/ports/GCC/ARMCMx/chcore_v6m.h @@ -349,6 +349,23 @@ struct context { }
#endif
+/**
+ * @brief Excludes the default @p chSchIsPreemptionRequired()implementation.
+ */
+#define PORT_OPTIMIZED_ISPREEMPTIONREQUIRED
+
+#if (CH_TIME_QUANTUM > 0) || defined(__DOXYGEN__)
+/**
+ * @brief Inlineable version of this kernel function.
+ */
+#define chSchIsPreemptionRequired() \
+ (rlist.r_preempt ? firstprio(&rlist.r_queue) > currp->p_prio : \
+ firstprio(&rlist.r_queue) >= currp->p_prio)
+#else /* CH_TIME_QUANTUM == 0 */
+#define chSchIsPreemptionRequired() \
+ (firstprio(&rlist.r_queue) > currp->p_prio)
+#endif /* CH_TIME_QUANTUM == 0 */
+
#ifdef __cplusplus
extern "C" {
#endif
diff --git a/os/ports/GCC/ARMCMx/chcore_v7m.c b/os/ports/GCC/ARMCMx/chcore_v7m.c index 437492c90..30ba9c220 100644 --- a/os/ports/GCC/ARMCMx/chcore_v7m.c +++ b/os/ports/GCC/ARMCMx/chcore_v7m.c @@ -163,7 +163,7 @@ void _port_unlock(void) { void _port_irq_epilogue(void) {
port_lock_from_isr();
- if ((SCB_ICSR & ICSR_RETTOBASE)) {
+ if ((SCB_ICSR & ICSR_RETTOBASE) != 0) {
struct extctx *ctxp;
/* Current PSP value.*/
diff --git a/os/ports/GCC/ARMCMx/chcore_v7m.h b/os/ports/GCC/ARMCMx/chcore_v7m.h index 86b49a095..7fd763a7d 100644 --- a/os/ports/GCC/ARMCMx/chcore_v7m.h +++ b/os/ports/GCC/ARMCMx/chcore_v7m.h @@ -486,6 +486,23 @@ struct context { }
#endif
+/**
+ * @brief Excludes the default @p chSchIsPreemptionRequired()implementation.
+ */
+#define PORT_OPTIMIZED_ISPREEMPTIONREQUIRED
+
+#if (CH_TIME_QUANTUM > 0) || defined(__DOXYGEN__)
+/**
+ * @brief Inlineable version of this kernel function.
+ */
+#define chSchIsPreemptionRequired() \
+ (rlist.r_preempt ? firstprio(&rlist.r_queue) > currp->p_prio : \
+ firstprio(&rlist.r_queue) >= currp->p_prio)
+#else /* CH_TIME_QUANTUM == 0 */
+#define chSchIsPreemptionRequired() \
+ (firstprio(&rlist.r_queue) > currp->p_prio)
+#endif /* CH_TIME_QUANTUM == 0 */
+
#ifdef __cplusplus
extern "C" {
#endif
|