linux-kernel - Re: [PATCH]Make the intel-iommu_wait_op macro work when jiffies are not running

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Message-Id: <200805121343.22735.jbarnes@virtuousgeek.org>
Date:	Mon, 12 May 2008 13:43:22 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	mgross@...ux.intel.com
Cc:	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH]Make the intel-iommu_wait_op macro work when jiffies are not running

On Monday, May 12, 2008 1:41 pm mark gross wrote:
> 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 forever spin with a
> call to panic.
>
>
> diffstat:
> $ diffstat patches/wait_op_tsc.patch
>  intel-iommu.c |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> --mgross
>
> Signed-off-by:mark gross <mgross@...ux.intel.com>

Applied to the 'for-linus' tree.

Thanks,
Jesse
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