From: Zhen Lei <thunder.leizhen@huawei.com>
To: Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
"Mark Rutland" <mark.rutland@arm.com>,
Joerg Roedel <joro@8bytes.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
iommu <iommu@lists.linux-foundation.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Cc: Jean-Philippe Brucker <jean-philippe@linaro.org>
Subject: [PATCH v3 2/3] perf/smmuv3: Add a MODULE_SOFTDEP() to indicate dependency on SMMU
Date: Wed, 27 Jan 2021 19:32:57 +0800 [thread overview]
Message-ID: <20210127113258.1421-3-thunder.leizhen@huawei.com> (raw)
In-Reply-To: <20210127113258.1421-1-thunder.leizhen@huawei.com>
The MODULE_SOFTDEP() gives user space a hint of the loading sequence. And
when command "modprobe arm_smmuv3_pmu" is executed, the arm_smmu_v3.ko is
automatically loaded in advance.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
drivers/perf/arm_smmuv3_pmu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index e5e505a0804fe53..9a305ac51208cd2 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -950,6 +950,7 @@ static void __exit arm_smmu_pmu_exit(void)
module_exit(arm_smmu_pmu_exit);
MODULE_DESCRIPTION("PMU driver for ARM SMMUv3 Performance Monitors Extension");
+MODULE_SOFTDEP("pre: arm_smmu_v3");
MODULE_AUTHOR("Neil Leeder <nleeder@codeaurora.org>");
MODULE_AUTHOR("Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>");
MODULE_LICENSE("GPL v2");
--
1.8.3
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next prev parent reply other threads:[~2021-01-27 11:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-27 11:32 [PATCH v3 0/3] perf/smmuv3: Don't reserve the PMCG register spaces Zhen Lei
2021-01-27 11:32 ` [PATCH v3 1/3] " Zhen Lei
2021-01-29 15:06 ` Robin Murphy
2021-01-30 2:23 ` Leizhen (ThunderTown)
2021-01-27 11:32 ` Zhen Lei [this message]
2021-01-29 15:12 ` [PATCH v3 2/3] perf/smmuv3: Add a MODULE_SOFTDEP() to indicate dependency on SMMU Robin Murphy
2021-01-29 15:34 ` John Garry
2021-01-29 17:03 ` Robin Murphy
2021-01-30 1:34 ` Leizhen (ThunderTown)
2021-01-27 11:32 ` [PATCH v3 3/3] iommu/arm-smmu-v3: Reserving the entire SMMU register space Zhen Lei
2021-01-29 15:27 ` Robin Murphy
2021-01-30 1:54 ` Leizhen (ThunderTown)
2021-02-01 11:44 ` Robin Murphy
2021-02-01 12:00 ` Leizhen (ThunderTown)
2021-01-28 20:31 ` [PATCH v3 0/3] perf/smmuv3: Don't reserve the PMCG register spaces Will Deacon
2021-01-29 13:15 ` Leizhen (ThunderTown)
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