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arch/tricore: perf.c donot depend on illd

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Replace the iLLD helpers IfxCpu_resetAndStartCounters() and
IfxCpu_getClockCounter() in the performance-counter path with direct
CSR accesses via tricore_mtcr()/tricore_mfcr().

tricore_reset_ccnt() disables the CPU cycle counter (CPU_CCTRL), clears
CPU_CCNT, then re-enables it; up_perf_gettime() reads CPU_CCNT directly.
This removes the arch/tricore perf path's dependency on the Infineon
iLLD layer. No behavior change.

Signed-off-by: zhangyu117 <zhangyu117@xiaomi.com>
This commit is contained in:
zhangyu117 2026-08-10 20:05:51 +08:00 • committed by Alin Jerpelea
parent d2c91137e5
commit d4d4db5bb1
1 changed files with 35 additions and 3 deletions
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38
arch/tricore/src/common/tricore_perf.c
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@ -28,7 +28,16 @@
#include <nuttx/clock.h>
#include <nuttx/lib/math32.h>
#include "tricore_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define CPU_CCTRL 0xFC00 /* Counter Control */
#define CPU_CCNT 0xFC04 /* CPU Clock Cycle Count */
/* CPU_CCTRL Count Enable bit. */
#define CCTRL_COUNT_ENABLE (1 << 1)
#ifdef CONFIG_ARCH_PERF_EVENTS
@ -39,6 +48,28 @@
static unsigned long g_cpu_freq = ULONG_MAX;
static invdiv_param64_t g_invdiv_param;
/****************************************************************************
* Private Functions
****************************************************************************/
static void tricore_reset_ccnt(void)
{
uint32_t cctrl = tricore_mfcr(CPU_CCTRL);
/* Disable and clear the CPU cycle counter */
cctrl &= ~CCTRL_COUNT_ENABLE;
tricore_mtcr(CPU_CCTRL, cctrl);
tricore_mtcr(CPU_CCNT, 0);
UP_ISB();
/* Re-enable the CPU cycle counter */
cctrl |= CCTRL_COUNT_ENABLE;
tricore_mtcr(CPU_CCTRL, cctrl);
UP_ISB();
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -48,7 +79,8 @@ void up_perf_init(void *arg)
g_cpu_freq = (unsigned long)(uintptr_t)arg;
invdiv_init_param64(g_cpu_freq, &g_invdiv_param);
IfxCpu_resetAndStartCounters(IfxCpu_CounterMode_normal);
tricore_reset_ccnt();
}
unsigned long up_perf_getfreq(void)
@ -58,7 +90,7 @@ unsigned long up_perf_getfreq(void)
clock_t up_perf_gettime(void)
{
return (clock_t)IfxCpu_getClockCounter();
return (clock_t)tricore_mfcr(CPU_CCNT);
}
void up_perf_convert(clock_t elapsed, struct timespec *ts)