From: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"iommu@lists.linux-foundation.org"
<iommu@lists.linux-foundation.org>
Cc: Joerg Roedel <jroedel@suse.de>
Subject: iommu: amd: Simpify decoding logic for INVALID_PPR_REQUEST event
Date: Mon, 14 Oct 2019 20:06:19 +0000 [thread overview]
Message-ID: <1571083569-105988-1-git-send-email-suravee.suthikulpanit@amd.com> (raw)
Reuse existing macro to simplify the code and improve readability.
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
---
drivers/iommu/amd_iommu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c1cb759..b249aa7 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -617,8 +617,7 @@ static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
pasid, address, flags);
break;
case EVENT_TYPE_INV_PPR_REQ:
- pasid = ((event[0] >> 16) & 0xFFFF)
- | ((event[1] << 6) & 0xF0000);
+ pasid = PPR_PASID(*((u64 *)__evt));
tag = event[1] & 0x03FF;
dev_err(dev, "Event logged [INVALID_PPR_REQUEST device=%02x:%02x.%x pasid=0x%05x address=0x%llx flags=0x%04x tag=0x%03x]\n",
PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
--
1.8.3.1
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next reply other threads:[~2019-10-14 20:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-14 20:06 Suthikulpanit, Suravee [this message]
2019-10-15 12:14 ` iommu: amd: Simpify decoding logic for INVALID_PPR_REQUEST event joro
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