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[PATCH V3 03/12] dtb: amd: Fix DMA ranges of smb0 and pcie0

From Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Newsgroups linux.kernel
Subject [PATCH V3 03/12] dtb: amd: Fix DMA ranges of smb0 and pcie0
Date 2016-02-11 05:00 +0100
Message-ID <r0QAa-3dd-5@gated-at.bofh.it> (permalink)
References <r0QA9-3dd-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>

Since GICv2m MSI frame is also considered DMA-able, we should also
include this range in the dma-range DT property as well. Therefore,
this patch fixes the smb0 and pcie0 dma-range properties.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
---
 arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
index fdd0c96..5c73117 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
@@ -55,8 +55,12 @@
 		#size-cells = <2>;
 		ranges;
 
-		/* DDR range is 40-bit addressing */
-		dma-ranges = <0x80 0x0 0x80 0x0 0x7f 0xffffffff>;
+		/*
+		 * dma-ranges is 40-bit address space containing:
+		 * - GICv2m MSI register is at 0xe0080000
+		 * - DRAM range [0x8000000000 to 0xffffffffff]
+		 */
+		dma-ranges = <0x0 0x0 0x0 0x0 0x100 0x0>;
 
 		/include/ "amd-seattle-clks.dtsi"
 
@@ -159,7 +163,7 @@
 				<0x1000 0x0 0x0 0x4 &gic0 0x0 0x0 0x0 0x123 0x1>;
 
 			dma-coherent;
-			dma-ranges = <0x43000000 0x80 0x0 0x80 0x0 0x7f 0xffffffff>;
+			dma-ranges = <0x43000000 0x0 0x0 0x0 0x0 0x100 0x0>;
 			ranges =
 				/* I/O Memory (size=64K) */
 				<0x01000000 0x00 0x00000000 0x00 0xefff0000 0x00 0x00010000>,
-- 
2.5.0

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Thread

[PATCH V3 00/12] dtb: amd: Miscellaneous Updates for AMD Seattle DTS Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 08/12] dtb: amd: Add PERF CCN-504 device tree node Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 03/12] dtb: amd: Fix DMA ranges of smb0 and pcie0 Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 07/12] dtb: amd: Misc changes for GPIO devices Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 09/12] dtb: amd: Add KCS device tree node Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 06/12] dtb: amd: Misc changes for SATA device tree nodes Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 05/12] dtb: amd: Misc changes for I2C device nodes Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 02/12] dtb: amd: Fix GICv2 hypervisor and virtual interface sizes Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 04/12] dtb: amd: Fix typo in SPI device nodes Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 10/12] dtb: amd: Add AMD XGBE device tree file Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 01/12] MAINTAINERS: Adding Maintainers for AMD Seattle Device Tree Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 12/12] dtb: amd: Add support for AMD/Linaro 96Boards Enterprise Edition Server board Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100
  [PATCH V3 11/12] dtb: amd: Add support for new AMD Overdrive boards Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> - 2016-02-11 05:00 +0100

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