Commit-ID: 47bccd6bb2b866449d3ecf2ba350ac1c7473b2b8 Gitweb: http://git.kernel.org/tip/47bccd6bb2b866449d3ecf2ba350ac1c7473b2b8 Author: Joerg Roedel <joerg.roedel@xxxxxxx> AuthorDate: Fri, 22 May 2009 12:40:54 +0200 Committer: Joerg Roedel <joerg.roedel@xxxxxxx> CommitDate: Thu, 28 May 2009 18:18:33 +0200 amd-iommu: don't free dma adresses below 512MB with CONFIG_IOMMU_STRESS This will test the automatic aperture enlargement code. This is important because only very few devices will ever trigger this code path. So force it under CONFIG_IOMMU_STRESS. Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx> --- arch/x86/kernel/amd_iommu.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 33434c4..04ff5ec 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -824,6 +824,11 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom, BUG_ON(i >= APERTURE_MAX_RANGES || range == NULL); +#ifdef CONFIG_IOMMU_STRESS + if (i < 4) + return; +#endif + if (address >= dom->next_address) dom->need_flush = true; -- 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
|