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authorattilio <attilio@FreeBSD.org>2013-02-26 17:33:18 +0000
committerattilio <attilio@FreeBSD.org>2013-02-26 17:33:18 +0000
commitafe5ce0c13a339718eedb08d875d136798499ad3 (patch)
tree20fe8e5e757f20a950dd317277daa575b44a5d5e /sys/dev/hwpmc
parente590e8091e823df34af5b8553df7832c49de0258 (diff)
downloadFreeBSD-src-afe5ce0c13a339718eedb08d875d136798499ad3.zip
FreeBSD-src-afe5ce0c13a339718eedb08d875d136798499ad3.tar.gz
MFC
Diffstat (limited to 'sys/dev/hwpmc')
-rw-r--r--sys/dev/hwpmc/hwpmc_soft.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/dev/hwpmc/hwpmc_soft.c b/sys/dev/hwpmc/hwpmc_soft.c
index dac3612..0ed2262 100644
--- a/sys/dev/hwpmc/hwpmc_soft.c
+++ b/sys/dev/hwpmc/hwpmc_soft.c
@@ -408,8 +408,11 @@ pmc_soft_intr(struct pmckern_soft *ks)
}
processed = 1;
- pc->soft_values[ri]++;
if (PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm))) {
+ if ((pc->soft_values[ri]--) <= 0)
+ pc->soft_values[ri] += pm->pm_sc.pm_reloadcount;
+ else
+ continue;
user_mode = TRAPF_USERMODE(ks->pm_tf);
error = pmc_process_interrupt(ks->pm_cpu, PMC_SR, pm,
ks->pm_tf, user_mode);
@@ -424,7 +427,8 @@ pmc_soft_intr(struct pmckern_soft *ks)
*/
curthread->td_flags |= TDF_ASTPENDING;
}
- }
+ } else
+ pc->soft_values[ri]++;
}
atomic_add_int(processed ? &pmc_stats.pm_intr_processed :
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