From: Joerg Roedel <joerg.roedel@amd.com>
To: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Cc: Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 11/12] amd-iommu: don't preallocate page tables with CONFIG_IOMMU_STRESS
Date: Fri, 22 May 2009 14:21:32 +0200 [thread overview]
Message-ID: <1242994893-28902-12-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1242994893-28902-1-git-send-email-joerg.roedel@amd.com>
[ impact: force testing of on-demand page table allocation code ]
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
arch/x86/kernel/amd_iommu.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 543822b..33434c4 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -661,6 +661,10 @@ static int alloc_new_range(struct amd_iommu *iommu,
int index = dma_dom->aperture_size >> APERTURE_RANGE_SHIFT;
int i;
+#ifdef CONFIG_IOMMU_STRESS
+ populate = false;
+#endif
+
if (index >= APERTURE_MAX_RANGES)
return -ENOMEM;
--
1.6.3.1
next prev parent reply other threads:[~2009-05-22 12:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-22 12:21 [PATCH 0/12] extended allocator for amd iommu Joerg Roedel
2009-05-22 12:21 ` [PATCH 01/12] amd-iommu: introduce aperture_range structure Joerg Roedel
2009-05-22 12:21 ` [PATCH 02/12] amd-iommu: move page table allocation code to seperate function Joerg Roedel
2009-05-22 12:21 ` [PATCH 03/12] amd-iommu: handle page table allocation failures in dma_ops code Joerg Roedel
2009-05-22 12:21 ` [PATCH 04/12] amd-iommu: make address allocator aware of multiple aperture ranges Joerg Roedel
2009-05-22 12:21 ` [PATCH 05/12] amd-iommu: change dma_dom->next_bit to dma_dom->next_address Joerg Roedel
2009-05-22 12:21 ` [PATCH 06/12] amd-iommu: move aperture_range allocation code to seperate function Joerg Roedel
2009-05-22 12:21 ` [PATCH 07/12] amd-iommu: handle exlusion ranges and unity mappings in alloc_new_range Joerg Roedel
2009-05-22 12:21 ` [PATCH 08/12] amd-iommu: enlarge the aperture dynamically Joerg Roedel
2009-05-22 12:21 ` [PATCH 09/12] amd-iommu: remove amd_iommu_size kernel parameter Joerg Roedel
2009-05-22 12:21 ` [PATCH 10/12] amd-iommu: disable round-robin allocator for CONFIG_IOMMU_STRESS Joerg Roedel
2009-05-22 12:21 ` Joerg Roedel [this message]
2009-05-22 12:21 ` [PATCH 12/12] amd-iommu: don't free dma adresses below 512MB with CONFIG_IOMMU_STRESS Joerg Roedel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1242994893-28902-12-git-send-email-joerg.roedel@amd.com \
--to=joerg.roedel@amd.com \
--cc=iommu@lists.linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®