Commit-ID: 94fe79e2f100bfcd8e7689cbf8838634779b80a2
Gitweb: http://git.kernel.org/tip/94fe79e2f100bfcd8e7689cbf8838634779b80a2
Author: Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Wed, 6 Apr 2011 11:07:21 +0200
Committer: Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Wed, 6 Apr 2011 11:44:15 +0200
x86/amd-iommu: Move inv-dte command building to own function
This patch moves command building for the invalidate-dte
command into its own function.
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
arch/x86/kernel/amd_iommu.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index eebd504..4e5631a 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -390,6 +390,13 @@ static void build_completion_wait(struct iommu_cmd *cmd)
CMD_SET_TYPE(cmd, CMD_COMPL_WAIT);
}
+static void build_inv_dte(struct iommu_cmd *cmd, u16 devid)
+{
+ memset(cmd, 0, sizeof(*cmd));
+ cmd->data[0] = devid;
+ CMD_SET_TYPE(cmd, CMD_INV_DEV_ENTRY);
+}
+
/*
* Writes the command to the IOMMUs command buffer and informs the
* hardware about the new command. Must be called with iommu->lock held.
@@ -533,10 +540,7 @@ static int iommu_flush_device(struct device *dev)
devid = get_device_id(dev);
iommu = amd_iommu_rlookup_table[devid];
- /* Build command */
- memset(&cmd, 0, sizeof(cmd));
- CMD_SET_TYPE(&cmd, CMD_INV_DEV_ENTRY);
- cmd.data[0] = devid;
+ build_inv_dte(&cmd, devid);
return iommu_queue_command(iommu, &cmd);
}
--
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