| commit | a7eb08c2a14f28cb652ea6ad1a8e2b8efc55fb9a | |
| author | mark gross <mgross@linux.intel.com> | |
| Mon, 12 May 2008 20:41:57 +0000 (12 13:41 -0700) | ||
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | |
| Tue, 13 May 2008 16:51:54 +0000 (13 09:51 -0700) | ||
| tree | 0c659e7f0d9af18bad57f705a7099f37157c245a | treesnapshot (tar.gz zip) |
| parent | 34a65055e5e7304b3d6ad0f7542bf66308eae50a | commitdiff |
PCI: Make the intel-iommu_wait_op macro work when jiffies are not running
The following patch changes the intel-iommu.c code to use the TSC
instead of jiffies for detecting bad DMAR functionality. Some systems
with bad bios's have been seen to hang in early boot spinning in the
IOMMU_WAIT_IO macro. This patch will replace the infinite loop with a call to
panic.
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
The following patch changes the intel-iommu.c code to use the TSC
instead of jiffies for detecting bad DMAR functionality. Some systems
with bad bios's have been seen to hang in early boot spinning in the
IOMMU_WAIT_IO macro. This patch will replace the infinite loop with a call to
panic.
Signed-off-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| drivers/pci/intel-iommu.c | diffblobblamehistory |