Commit-ID: f5325094379158e6b876ea0010c807bf7890ec8f
Gitweb: http://git.kernel.org/tip/f5325094379158e6b876ea0010c807bf7890ec8f
Author: Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Fri, 22 Jan 2010 17:44:35 +0100
Committer: Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Fri, 22 Jan 2010 17:44:35 +0100
x86/amd-iommu: Fix IOMMU-API initialization for iommu=pt
This patch moves the initialization of the iommu-api out of
the dma-ops initialization code. This ensures that the
iommu-api is initialized even with iommu=pt.
Cc: stable@xxxxxxxxxx
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
arch/x86/include/asm/amd_iommu_proto.h | 1 +
arch/x86/kernel/amd_iommu.c | 8 ++++++--
arch/x86/kernel/amd_iommu_init.c | 3 +++
3 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/amd_iommu_proto.h b/arch/x86/include/asm/amd_iommu_proto.h
index 4d817f9..d2544f1 100644
--- a/arch/x86/include/asm/amd_iommu_proto.h
+++ b/arch/x86/include/asm/amd_iommu_proto.h
@@ -31,6 +31,7 @@ extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu);
extern int amd_iommu_init_devices(void);
extern void amd_iommu_uninit_devices(void);
extern void amd_iommu_init_notifier(void);
+extern void amd_iommu_init_api(void);
#ifndef CONFIG_AMD_IOMMU_STATS
static inline void amd_iommu_stats_init(void) { }
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 4478a48..751ce73 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2221,6 +2221,12 @@ static struct dma_map_ops amd_iommu_dma_ops = {
/*
* The function which clues the AMD IOMMU driver into dma_ops.
*/
+
+void __init amd_iommu_init_api(void)
+{
+ register_iommu(&amd_iommu_ops);
+}
+
int __init amd_iommu_init_dma_ops(void)
{
struct amd_iommu *iommu;
@@ -2256,8 +2262,6 @@ int __init amd_iommu_init_dma_ops(void)
/* Make the driver finally visible to the drivers */
dma_ops = &amd_iommu_dma_ops;
- register_iommu(&amd_iommu_ops);
-
amd_iommu_stats_init();
return 0;
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index fb490ce..9dc91b4 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -1292,9 +1292,12 @@ static int __init amd_iommu_init(void)
ret = amd_iommu_init_passthrough();
else
ret = amd_iommu_init_dma_ops();
+
if (ret)
goto free;
+ amd_iommu_init_api();
+
amd_iommu_init_notifier();
enable_iommus();
--
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