From: Jingyi Wang <wangjingyi11@huawei.com>
To: <drjones@redhat.com>, <kvm@vger.kernel.org>,
<kvmarm@lists.cs.columbia.edu>, <wangjingyi11@huawei.com>
Cc: <maz@kernel.org>, <wanghaibin.wang@huawei.com>,
<yuzenghui@huawei.com>, <eric.auger@redhat.com>
Subject: [kvm-unit-tests PATCH 4/6] arm64: its: Handle its command queue wrapping
Date: Sun, 17 May 2020 18:08:58 +0800 [thread overview]
Message-ID: <20200517100900.30792-5-wangjingyi11@huawei.com> (raw)
In-Reply-To: <20200517100900.30792-1-wangjingyi11@huawei.com>
Because micro-bench may send a large number of ITS commands, we
should handle ITS command queue wrapping as kernel instead of just
failing the test.
Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com>
---
lib/arm64/gic-v3-its-cmd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/arm64/gic-v3-its-cmd.c b/lib/arm64/gic-v3-its-cmd.c
index 2c208d1..34574f7 100644
--- a/lib/arm64/gic-v3-its-cmd.c
+++ b/lib/arm64/gic-v3-its-cmd.c
@@ -164,8 +164,9 @@ static struct its_cmd_block *its_allocate_entry(void)
{
struct its_cmd_block *cmd;
- assert((u64)its_data.cmd_write < (u64)its_data.cmd_base + SZ_64K);
cmd = its_data.cmd_write++;
+ if ((u64)its_data.cmd_write == (u64)its_data.cmd_base + SZ_64K)
+ its_data.cmd_write = its_data.cmd_base;
return cmd;
}
--
2.19.1
next prev parent reply other threads:[~2020-05-17 10:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-17 10:08 [kvm-unit-tests PATCH 0/6] arm64: add IPI/LPI/vtimer latency Jingyi Wang
2020-05-17 10:08 ` [kvm-unit-tests PATCH 1/6] arm64: microbench: get correct ipi recieved num Jingyi Wang
2020-05-21 14:00 ` Zenghui Yu
2020-05-22 2:32 ` Jingyi Wang
2020-05-22 5:34 ` Andrew Jones
2020-05-17 10:08 ` [kvm-unit-tests PATCH 2/6] arm64: microbench: Use the funcions for ipi test as the general functions for gic(ipi/lpi/timer) test Jingyi Wang
2020-05-17 10:08 ` [kvm-unit-tests PATCH 3/6] arm64: microbench: gic: Add gicv4.1 support for ipi latency test Jingyi Wang
2020-05-17 10:08 ` Jingyi Wang [this message]
2020-05-17 10:08 ` [kvm-unit-tests PATCH 5/6] arm64: microbench: its: Add LPI " Jingyi Wang
2020-05-17 10:09 ` [kvm-unit-tests PATCH 6/6] arm64: microbench: Add vtimer " Jingyi Wang
2020-05-18 7:05 ` Andrew Jones
2020-05-20 4:16 ` Jingyi Wang
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