From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Joerg Roedel <joro@8bytes.org>,
Robin Murphy <robin.murphy@arm.com>
Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v5 12/21] memory: tegra: Use relaxed versions of readl/writel
Date: Mon, 1 Oct 2018 01:48:24 +0300 [thread overview]
Message-ID: <20180930224833.28809-13-digetx@gmail.com> (raw)
In-Reply-To: <20180930224833.28809-1-digetx@gmail.com>
There is no need for inserting of memory barriers to access registers of
Memory Controller. Hence use the relaxed versions of the accessors.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/memory/tegra/mc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h
index 9856f085e487..887a3b07334f 100644
--- a/drivers/memory/tegra/mc.h
+++ b/drivers/memory/tegra/mc.h
@@ -26,13 +26,13 @@
static inline u32 mc_readl(struct tegra_mc *mc, unsigned long offset)
{
- return readl(mc->regs + offset);
+ return readl_relaxed(mc->regs + offset);
}
static inline void mc_writel(struct tegra_mc *mc, u32 value,
unsigned long offset)
{
- writel(value, mc->regs + offset);
+ writel_relaxed(value, mc->regs + offset);
}
extern const struct tegra_mc_reset_ops terga_mc_reset_ops_common;
--
2.19.0
next prev parent reply other threads:[~2018-09-30 22:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-30 22:48 [PATCH v5 00/21] IOMMU: Tegra GART driver clean up and optimization Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 01/21] iommu/tegra: gart: Remove pr_fmt and clean up includes Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 02/21] iommu/tegra: gart: Clean up driver probe errors handling Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 03/21] iommu/tegra: gart: Ignore devices without IOMMU phandle in DT Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 04/21] iommu: Introduce iotlb_sync_map callback Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 05/21] iommu/tegra: gart: Optimize mapping / unmapping performance Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 06/21] dt-bindings: memory: tegra: Squash tegra20-gart into tegra20-mc Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 07/21] ARM: dts: tegra20: Update Memory Controller node to the new binding Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 08/21] memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20 Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 09/21] memory: tegra: Adapt to Tegra20 device-tree binding changes Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 10/21] memory: tegra: Read client ID on GART page fault Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 11/21] memory: tegra: Use of_device_get_match_data() Dmitry Osipenko
2018-09-30 22:48 ` Dmitry Osipenko [this message]
2018-09-30 22:48 ` [PATCH v5 13/21] iommu/tegra: gart: Integrate with Memory Controller driver Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 14/21] iommu/tegra: gart: Fix spinlock recursion Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 15/21] iommu/tegra: gart: Fix NULL pointer dereference Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 16/21] iommu/tegra: gart: Allow only one active domain at a time Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 17/21] iommu/tegra: gart: Don't use managed resources Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 18/21] iommu/tegra: gart: Prepend error/debug messages with "gart:" Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 19/21] iommu/tegra: gart: Don't detach devices from inactive domains Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 20/21] iommu/tegra: gart: Simplify clients-tracking code Dmitry Osipenko
2018-09-30 22:48 ` [PATCH v5 21/21] iommu/tegra: gart: Perform code refactoring Dmitry Osipenko
[not found] ` <20180930224833.28809-1-digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-11-16 12:13 ` [PATCH v5 00/21] IOMMU: Tegra GART driver clean up and optimization Dmitry Osipenko
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=20180930224833.28809-13-digetx@gmail.com \
--to=digetx@gmail.com \
--cc=devicetree@vger.kernel.org \
--cc=iommu@lists.linux-foundation.org \
--cc=jonathanh@nvidia.com \
--cc=joro@8bytes.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=robin.murphy@arm.com \
--cc=thierry.reding@gmail.com \
/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;
as well as URLs for NNTP newsgroup(s).