Commit-ID: 6a0dbcbe4e612fbc9d73cd4dde8ebef19295058a
Gitweb: http://git.kernel.org/tip/6a0dbcbe4e612fbc9d73cd4dde8ebef19295058a
Author: Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Wed, 2 Sep 2009 15:41:59 +0200
Committer: Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Thu, 3 Sep 2009 16:03:43 +0200
x86/amd-iommu: Add a gneric version of amd_iommu_flush_all_devices
This patch adds a generic variant of
amd_iommu_flush_all_devices function which flushes only the
DTEs for a given protection domain.
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
arch/x86/kernel/amd_iommu.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 4a54366..5265dd1 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -481,13 +481,14 @@ void amd_iommu_flush_all_domains(void)
}
}
-void amd_iommu_flush_all_devices(void)
+static void flush_devices_by_domain(struct protection_domain *domain)
{
struct amd_iommu *iommu;
int i;
for (i = 0; i <= amd_iommu_last_bdf; ++i) {
- if (amd_iommu_pd_table[i] == NULL)
+ if ((domain == NULL && amd_iommu_pd_table[i] == NULL) ||
+ (amd_iommu_pd_table[i] != domain))
continue;
iommu = amd_iommu_rlookup_table[i];
@@ -499,6 +500,11 @@ void amd_iommu_flush_all_devices(void)
}
}
+void amd_iommu_flush_all_devices(void)
+{
+ flush_devices_by_domain(NULL);
+}
+
/****************************************************************************
*
* The functions below are used the create the page table mappings for
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|