From: "Niklas Söderlund" <niklas.soderlund+renesas-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org>
To: vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org
Cc: linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Niklas Söderlund"
<niklas.soderlund+renesas-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org>,
geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org,
arnd-r2nGTMty4D4@public.gmane.org,
linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org,
dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Subject: [PATCHv6 8/8] ARM: dts: r8a7791: add iommus to dmac0 and dmac1
Date: Mon, 9 May 2016 18:44:07 +0200 [thread overview]
Message-ID: <1462812247-3414-9-git-send-email-niklas.soderlund+renesas@ragnatech.se> (raw)
In-Reply-To: <1462812247-3414-1-git-send-email-niklas.soderlund+renesas-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org>
A unconfirmed hardware bug prevents channel 0 and 15 to be used by the
DMAC together with the IPMMU. The DMAC driver will disable the channels
reducing the effective number of channels to 14 per DMAC.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
arch/arm/boot/dts/r8a7791.dtsi | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index 4f01b64..dc81c90 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -313,6 +313,21 @@
power-domains = <&cpg_clocks>;
#dma-cells = <1>;
dma-channels = <15>;
+ iommus = <&ipmmu_ds 0>,
+ <&ipmmu_ds 1>,
+ <&ipmmu_ds 2>,
+ <&ipmmu_ds 3>,
+ <&ipmmu_ds 4>,
+ <&ipmmu_ds 5>,
+ <&ipmmu_ds 6>,
+ <&ipmmu_ds 7>,
+ <&ipmmu_ds 8>,
+ <&ipmmu_ds 9>,
+ <&ipmmu_ds 10>,
+ <&ipmmu_ds 11>,
+ <&ipmmu_ds 12>,
+ <&ipmmu_ds 13>,
+ <&ipmmu_ds 14>;
};
dmac1: dma-controller@e6720000 {
@@ -344,6 +359,21 @@
power-domains = <&cpg_clocks>;
#dma-cells = <1>;
dma-channels = <15>;
+ iommus = <&ipmmu_ds 15>,
+ <&ipmmu_ds 16>,
+ <&ipmmu_ds 17>,
+ <&ipmmu_ds 18>,
+ <&ipmmu_ds 19>,
+ <&ipmmu_ds 20>,
+ <&ipmmu_ds 21>,
+ <&ipmmu_ds 22>,
+ <&ipmmu_ds 23>,
+ <&ipmmu_ds 24>,
+ <&ipmmu_ds 25>,
+ <&ipmmu_ds 26>,
+ <&ipmmu_ds 27>,
+ <&ipmmu_ds 28>,
+ <&ipmmu_ds 29>;
};
audma0: dma-controller@ec700000 {
--
2.8.2
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
To: vinod.koul@intel.com, linux-renesas-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
iommu@lists.linux-foundation.org, hch@infradead.org
Cc: robin.murphy@arm.com, laurent.pinchart@ideasonboard.com,
geert+renesas@glider.be, linus.walleij@linaro.org,
dan.j.williams@intel.com, arnd@arndb.de,
linux-arch@vger.kernel.org,
"Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
Subject: [PATCHv6 8/8] ARM: dts: r8a7791: add iommus to dmac0 and dmac1
Date: Mon, 9 May 2016 18:44:07 +0200 [thread overview]
Message-ID: <1462812247-3414-9-git-send-email-niklas.soderlund+renesas@ragnatech.se> (raw)
Message-ID: <20160509164407.EegvA9OriK5SPg0JbEkUpeYQ5VGykM1iBR5zy0gblfU@z> (raw)
In-Reply-To: <1462812247-3414-1-git-send-email-niklas.soderlund+renesas@ragnatech.se>
A unconfirmed hardware bug prevents channel 0 and 15 to be used by the
DMAC together with the IPMMU. The DMAC driver will disable the channels
reducing the effective number of channels to 14 per DMAC.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
arch/arm/boot/dts/r8a7791.dtsi | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index 4f01b64..dc81c90 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -313,6 +313,21 @@
power-domains = <&cpg_clocks>;
#dma-cells = <1>;
dma-channels = <15>;
+ iommus = <&ipmmu_ds 0>,
+ <&ipmmu_ds 1>,
+ <&ipmmu_ds 2>,
+ <&ipmmu_ds 3>,
+ <&ipmmu_ds 4>,
+ <&ipmmu_ds 5>,
+ <&ipmmu_ds 6>,
+ <&ipmmu_ds 7>,
+ <&ipmmu_ds 8>,
+ <&ipmmu_ds 9>,
+ <&ipmmu_ds 10>,
+ <&ipmmu_ds 11>,
+ <&ipmmu_ds 12>,
+ <&ipmmu_ds 13>,
+ <&ipmmu_ds 14>;
};
dmac1: dma-controller@e6720000 {
@@ -344,6 +359,21 @@
power-domains = <&cpg_clocks>;
#dma-cells = <1>;
dma-channels = <15>;
+ iommus = <&ipmmu_ds 15>,
+ <&ipmmu_ds 16>,
+ <&ipmmu_ds 17>,
+ <&ipmmu_ds 18>,
+ <&ipmmu_ds 19>,
+ <&ipmmu_ds 20>,
+ <&ipmmu_ds 21>,
+ <&ipmmu_ds 22>,
+ <&ipmmu_ds 23>,
+ <&ipmmu_ds 24>,
+ <&ipmmu_ds 25>,
+ <&ipmmu_ds 26>,
+ <&ipmmu_ds 27>,
+ <&ipmmu_ds 28>,
+ <&ipmmu_ds 29>;
};
audma0: dma-controller@ec700000 {
--
2.8.2
next prev parent reply other threads:[~2016-05-09 16:44 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-09 16:43 [PATCHv6 0/8] dmaengine: rcar-dmac: add iommu support for slave transfers Niklas Söderlund
2016-05-09 16:43 ` Niklas Söderlund
[not found] ` <1462812247-3414-1-git-send-email-niklas.soderlund+renesas-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org>
2016-05-09 16:44 ` [PATCHv6 1/8] dma-mapping: add {map,unmap}_resource to dma_map_ops Niklas Söderlund
2016-05-09 16:44 ` Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 2/8] dma-debug: add support for resource mappings Niklas Söderlund
2016-05-09 16:44 ` Niklas Söderlund
[not found] ` <1462812247-3414-3-git-send-email-niklas.soderlund+renesas-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org>
2016-05-17 14:50 ` Konrad Rzeszutek Wilk
2016-05-17 14:50 ` Konrad Rzeszutek Wilk
2016-05-19 11:21 ` Niklas Söderlund
2016-05-19 11:42 ` Robin Murphy
2016-05-19 11:42 ` Robin Murphy
2016-05-09 16:44 ` [PATCHv6 4/8] arm: dma-mapping: add {map, unmap}_resource for iommu ops Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 4/8] arm: dma-mapping: add {map,unmap}_resource " Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 5/8] dmaengine: rcar-dmac: group slave configuration Niklas Söderlund
2016-05-09 16:44 ` Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 6/8] dmaengine: rcar-dmac: add iommu support for slave transfers Niklas Söderlund
2016-05-09 16:44 ` Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 7/8] ARM: dts: r8a7790: add iommus to dmac0 and dmac1 Niklas Söderlund
2016-05-09 16:44 ` Niklas Söderlund
2016-05-09 16:44 ` Niklas Söderlund [this message]
2016-05-09 16:44 ` [PATCHv6 8/8] ARM: dts: r8a7791: " Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 3/8] dma-mapping: add dma_{map,unmap}_resource Niklas Söderlund
2016-05-09 16:44 ` Niklas Söderlund
[not found] ` <1462812247-3414-4-git-send-email-niklas.soderlund+renesas-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org>
2016-05-17 14:54 ` Konrad Rzeszutek Wilk
2016-05-17 14:54 ` Konrad Rzeszutek Wilk
2016-05-19 11:29 ` Niklas Söderlund
2016-05-19 11:29 ` Niklas Söderlund
2016-05-19 14:22 ` Konrad Rzeszutek Wilk
2016-05-19 14:22 ` Konrad Rzeszutek Wilk
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