From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Tue, 14 Apr 2009 00:43:19 +0000 (+0900)
Subject: x86 gart: reimplement IOMMU_LEAK feature by using DMA_API_DEBUG
X-Git-Tag: v2.6.31-rc1~408^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=19c1a6f5764d787113fa323ffb18be7991208f82;p=pandora-kernel.git

x86 gart: reimplement IOMMU_LEAK feature by using DMA_API_DEBUG

IOMMU_LEAK, GART's own feature, dumps the used IOMMU entries when
IOMMU entries is full, which might be useful to find a bad driver that
eats IOMMU entries.

DMA_API_DEBUG provides the similar feature, debug_dma_dump_mappings,
and it's better than GART's IOMMU_LEAK feature. GART's IOMMU_LEAK
feature doesn't say who uses IOMMU entries so it's hard to find a bad
driver.

This patch reimplements the GART's IOMMU_LEAK feature by using
DMA_API_DEBUG.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1239669799-23579-2-git-send-email-fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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