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iommu/amd: Split enable_iommus() routine 

Split the enable_iommus() routine so that a part of it can
run in early code.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2012-06-12 16:30:06 +02:00
parent 643511b37e
commit 11ee5ac47b
1 changed files with 18 additions and 3 deletions
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21
drivers/iommu/amd_iommu_init.c
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@ -1379,7 +1379,7 @@ static void iommu_apply_resume_quirks(struct amd_iommu *iommu)
* This function finally enables all IOMMUs found in the system after
* they have been initialized
*/
static void enable_iommus(void)
static void early_enable_iommus(void)
{
struct amd_iommu *iommu;
@ -1389,14 +1389,29 @@ static void enable_iommus(void)
iommu_set_device_table(iommu);
iommu_enable_command_buffer(iommu);
iommu_enable_event_buffer(iommu);
iommu_enable_ppr_log(iommu);
iommu_enable_gt(iommu);
iommu_set_exclusion_range(iommu);
iommu_enable(iommu);
iommu_flush_all_caches(iommu);
}
}
static void enable_iommus_v2(void)
{
struct amd_iommu *iommu;
for_each_iommu(iommu) {
iommu_enable_ppr_log(iommu);
iommu_enable_gt(iommu);
}
}
static void enable_iommus(void)
{
early_enable_iommus();
enable_iommus_v2();
}
static void disable_iommus(void)
{
struct amd_iommu *iommu;