All of lore.kernel.org
 help / color / mirror / Atom feed
From: Simon Horman <horms+renesas@verge.net.au>
To: linux-renesas-soc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
	Magnus Damm <magnus.damm@gmail.com>,
	Pooya Keshavarzi <Pooya.Keshavarzi@de.bosch.com>,
	Dirk Behme <dirk.behme@de.bosch.com>,
	Simon Horman <horms+renesas@verge.net.au>
Subject: [PATCH 2/9] arm64: dts: r8a7795: Increase the size of GIC-400 mapped registers
Date: Wed,  8 Jun 2016 09:59:39 +0900	[thread overview]
Message-ID: <457f47b7651ccb1828c1d02f7ace0d07e9b16f33.1465347183.git.horms+renesas@verge.net.au> (raw)
In-Reply-To: <cover.1465347183.git.horms+renesas@verge.net.au>

From: Pooya Keshavarzi <Pooya.Keshavarzi@de.bosch.com>

There are some requirements about the GIC-400 memory layout and its
mapping if using 64k aligned base addresses like on r8a7795.

See e.g.

http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=21550029f709072aacf3b9

Map the whole memory range instead of only 0x2000. This will fix
the issue that some hypervisors, e.g. Xen, fail to handle the
interrupts correctly.

Signed-off-by: Pooya Keshavarzi <Pooya.Keshavarzi@de.bosch.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 3285a9286786..de3e799a7bba 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -157,9 +157,9 @@
 			#address-cells = <0>;
 			interrupt-controller;
 			reg = <0x0 0xf1010000 0 0x1000>,
-			      <0x0 0xf1020000 0 0x2000>,
+			      <0x0 0xf1020000 0 0x20000>,
 			      <0x0 0xf1040000 0 0x20000>,
-			      <0x0 0xf1060000 0 0x2000>;
+			      <0x0 0xf1060000 0 0x20000>;
 			interrupts = <GIC_PPI 9
 					(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 		};
-- 
2.1.4

WARNING: multiple messages have this Message-ID (diff)
From: horms+renesas@verge.net.au (Simon Horman)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/9] arm64: dts: r8a7795: Increase the size of GIC-400 mapped registers
Date: Wed,  8 Jun 2016 09:59:39 +0900	[thread overview]
Message-ID: <457f47b7651ccb1828c1d02f7ace0d07e9b16f33.1465347183.git.horms+renesas@verge.net.au> (raw)
In-Reply-To: <cover.1465347183.git.horms+renesas@verge.net.au>

From: Pooya Keshavarzi <Pooya.Keshavarzi@de.bosch.com>

There are some requirements about the GIC-400 memory layout and its
mapping if using 64k aligned base addresses like on r8a7795.

See e.g.

http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=21550029f709072aacf3b9

Map the whole memory range instead of only 0x2000. This will fix
the issue that some hypervisors, e.g. Xen, fail to handle the
interrupts correctly.

Signed-off-by: Pooya Keshavarzi <Pooya.Keshavarzi@de.bosch.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 3285a9286786..de3e799a7bba 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -157,9 +157,9 @@
 			#address-cells = <0>;
 			interrupt-controller;
 			reg = <0x0 0xf1010000 0 0x1000>,
-			      <0x0 0xf1020000 0 0x2000>,
+			      <0x0 0xf1020000 0 0x20000>,
 			      <0x0 0xf1040000 0 0x20000>,
-			      <0x0 0xf1060000 0 0x2000>;
+			      <0x0 0xf1060000 0 0x20000>;
 			interrupts = <GIC_PPI 9
 					(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 		};
-- 
2.1.4

  parent reply	other threads:[~2016-06-08  0:59 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-08  0:59 [GIT PULL] Renesas ARM64 Based SoC DT Updates for v4.8 Simon Horman
2016-06-08  0:59 ` Simon Horman
2016-06-08  0:59 ` [PATCH 1/9] arm64: dts: salvator-x: SCIF1 supports RTS/CTS hardware flow control Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-08  0:59 ` Simon Horman [this message]
2016-06-08  0:59   ` [PATCH 2/9] arm64: dts: r8a7795: Increase the size of GIC-400 mapped registers Simon Horman
2016-06-08  0:59 ` [PATCH 3/9] arm64: dts: r8a7795: enable DMA for I2C Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-08  0:59 ` [PATCH 4/9] arm64: dts: r8a7795: Add RWDT node Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-08  0:59 ` [PATCH 5/9] arm64: dts: salvator-x: Enable watchdog timer Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-08  0:59 ` [PATCH 6/9] arm64: dts: r8a7795: Use SYSC "always-on" PM Domain for RWDT node Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-08  0:59 ` [PATCH 7/9] arm64: dts: r8a7795: Fix W=1 dtc warnings Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-08  0:59 ` [PATCH 8/9] arm64: dts: salvator-x: " Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-08  0:59 ` [PATCH 9/9] arm64: dts: r8a7795: Drop 0x from unit address of gic Simon Horman
2016-06-08  0:59   ` Simon Horman
2016-06-13 22:29 ` [GIT PULL] Renesas ARM64 Based SoC DT Updates for v4.8 Olof Johansson
2016-06-13 22:29   ` Olof Johansson

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=457f47b7651ccb1828c1d02f7ace0d07e9b16f33.1465347183.git.horms+renesas@verge.net.au \
    --to=horms+renesas@verge.net.au \
    --cc=Pooya.Keshavarzi@de.bosch.com \
    --cc=dirk.behme@de.bosch.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --cc=magnus.damm@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.