From: Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH 18/23] iommu/tegra: smmu: Workaround PCIe IOMMU'able
Date: Wed, 26 Jun 2013 12:28:21 +0300 [thread overview]
Message-ID: <1372238906-9346-19-git-send-email-hdoyu@nvidia.com> (raw)
Make PCIe work as it is. IOMMU support can be implemented later.
Signed-off-by: Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
drivers/iommu/tegra-smmu.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 64da08a..6e82df3 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -402,6 +402,9 @@ static int __smmu_client_set_hwgrp(struct smmu_client *c,
for_each_set_bit(i, (unsigned long *)&map,
sizeof(map) * BITS_PER_BYTE) {
+ if (i == SWGID_AFI) /* FIXME: IOMMU'able PCIe */
+ continue;
+
offs = HWGRP_ASID_REG(i);
val = smmu_read(smmu, offs);
if (on) {
--
1.8.1.5
next reply other threads:[~2013-06-26 9:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-26 9:28 Hiroshi Doyu [this message]
[not found] ` <1372238906-9346-19-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-06-26 11:06 ` [PATCH 18/23] iommu/tegra: smmu: Workaround PCIe IOMMU'able Thierry Reding
2013-06-26 11:09 ` Hiroshi Doyu
[not found] ` <20130626.140906.1216615781918366349.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-06-26 11:15 ` Thierry Reding
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=1372238906-9346-19-git-send-email-hdoyu@nvidia.com \
--to=hdoyu-ddmlm1+adcrqt0dzr+alfa@public.gmane.org \
--cc=iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.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