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D27536.diff

Index: head/sys/riscv/include/counter.h
===================================================================
--- head/sys/riscv/include/counter.h
+++ head/sys/riscv/include/counter.h
@@ -30,14 +30,12 @@
#define _MACHINE_COUNTER_H_
#include <sys/pcpu.h>
-#ifdef INVARIANTS
-#include <sys/proc.h>
-#endif
+#include <machine/atomic.h>
#define EARLY_COUNTER &__pcpu[0].pc_early_dummy_counter
-#define counter_enter() critical_enter()
-#define counter_exit() critical_exit()
+#define counter_enter() do {} while (0)
+#define counter_exit() do {} while (0)
#ifdef IN_SUBR_COUNTER_C
static inline uint64_t
@@ -54,19 +52,17 @@
int i;
r = 0;
- for (i = 0; i < mp_ncpus; i++)
- r += counter_u64_read_one((uint64_t *)p, i);
+ CPU_FOREACH(i)
+ r += counter_u64_read_one(p, i);
return (r);
}
-/* XXXKIB might interrupt increment */
static void
counter_u64_zero_one_cpu(void *arg)
{
- *((uint64_t *)((char *)arg + UMA_PCPU_ALLOC_SIZE *
- PCPU_GET(cpuid))) = 0;
+ *(zpcpu_get((counter_u64_t *)arg)) = 0;
}
static inline void
@@ -78,18 +74,13 @@
}
#endif
-#define counter_u64_add_protected(c, inc) do { \
- CRITICAL_ASSERT(curthread); \
- *(uint64_t *)zpcpu_get(c) += (inc); \
-} while (0)
+#define counter_u64_add_protected(c, inc) counter_u64_add(c, inc)
static inline void
counter_u64_add(counter_u64_t c, int64_t inc)
{
- counter_enter();
- counter_u64_add_protected(c, inc);
- counter_exit();
+ atomic_add_64((uint64_t *)zpcpu_get(c), inc);
}
#endif /* ! _MACHINE_COUNTER_H_ */

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