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Commit ded46737 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

x86/amd-iommu: Move compl-wait command building to own function 



This patch introduces a seperate function for building
completion-wait commands.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 6221f222

arch/x86/kernel/amd_iommu.c

+8 −3
Original line number Diff line number Diff line
@@ -383,6 +383,13 @@ irqreturn_t amd_iommu_int_handler(int irq, void *data) 
 *

 ****************************************************************************/



static void build_completion_wait(struct iommu_cmd *cmd)

{

	memset(cmd, 0, sizeof(*cmd));

	cmd->data[0] = CMD_COMPL_WAIT_INT_MASK;

	CMD_SET_TYPE(cmd, CMD_COMPL_WAIT);

}



/*

 * Writes the command to the IOMMUs command buffer and informs the

 * hardware about the new command. Must be called with iommu->lock held.
@@ -458,9 +465,7 @@ static int __iommu_completion_wait(struct amd_iommu *iommu) 
{

	struct iommu_cmd cmd;



	 memset(&cmd, 0, sizeof(cmd));

	 cmd.data[0] = CMD_COMPL_WAIT_INT_MASK;

	 CMD_SET_TYPE(&cmd, CMD_COMPL_WAIT);

	build_completion_wait(&cmd);



	 return __iommu_queue_command(iommu, &cmd);

}