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Commit 558ab308 authored May 12, 2009 by Kumar Gala

powerpc/8xxx: Update PCI outbound window addresses for 36-bit configs

In these configuration we expect to have large amounts of memory (> 4G)
and thus will bounce via swiotlb some region of PCI address space.

The outbound windows were wasting 512M of address space by leaving a
gap between the top of the outbound window and the 4G boundary. By
moving the top of the outbound window up to the 4G boundary we can
reclaim the vast majority of the 512M (minus space needed for PEXCSRBAR)
and thus reduces the amount of memory we have to bounce.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

parent 3da34aae

arch/powerpc/boot/dts/mpc8572ds_36b.dts

+11 −11

Original line number	Diff line number	Diff line
		@@ -533,7 +533,7 @@
		#address-cells = <3>;
		reg = <0xf 0xffe08000 0 0x1000>;
		bus-range = <0 255>;
		ranges = <0x2000000 0x0 0xc0000000 0xc 0x00000000 0x0 0x20000000
		ranges = <0x2000000 0x0 0xe0000000 0xc 0x00000000 0x0 0x20000000
		0x1000000 0x0 0x00000000 0xf 0xffc00000 0x0 0x00010000>;
		clock-frequency = <33333333>;
		interrupt-parent = <&mpic>;
		@@ -660,8 +660,8 @@
		#size-cells = <2>;
		#address-cells = <3>;
		device_type = "pci";
		ranges = <0x2000000 0x0 0xc0000000
		0x2000000 0x0 0xc0000000
		ranges = <0x2000000 0x0 0xe0000000
		0x2000000 0x0 0xe0000000
		0x0 0x20000000

		0x1000000 0x0 0x0
		@@ -671,8 +671,8 @@
		reg = <0x0 0x0 0x0 0x0 0x0>;
		#size-cells = <2>;
		#address-cells = <3>;
		ranges = <0x2000000 0x0 0xc0000000
		0x2000000 0x0 0xc0000000
		ranges = <0x2000000 0x0 0xe0000000
		0x2000000 0x0 0xe0000000
		0x0 0x20000000

		0x1000000 0x0 0x0
		@@ -742,7 +742,7 @@
		#address-cells = <3>;
		reg = <0xf 0xffe09000 0 0x1000>;
		bus-range = <0 255>;
		ranges = <0x2000000 0x0 0xc0000000 0xc 0x20000000 0x0 0x20000000
		ranges = <0x2000000 0x0 0xe0000000 0xc 0x20000000 0x0 0x20000000
		0x1000000 0x0 0x00000000 0xf 0xffc10000 0x0 0x00010000>;
		clock-frequency = <33333333>;
		interrupt-parent = <&mpic>;
		@@ -760,8 +760,8 @@
		#size-cells = <2>;
		#address-cells = <3>;
		device_type = "pci";
		ranges = <0x2000000 0x0 0xc0000000
		0x2000000 0x0 0xc0000000
		ranges = <0x2000000 0x0 0xe0000000
		0x2000000 0x0 0xe0000000
		0x0 0x20000000

		0x1000000 0x0 0x0
		@@ -778,7 +778,7 @@
		#address-cells = <3>;
		reg = <0xf 0xffe0a000 0 0x1000>;
		bus-range = <0 255>;
		ranges = <0x2000000 0x0 0xc0000000 0xc 0x40000000 0x0 0x20000000
		ranges = <0x2000000 0x0 0xe0000000 0xc 0x40000000 0x0 0x20000000
		0x1000000 0x0 0x00000000 0xf 0xffc20000 0x0 0x00010000>;
		clock-frequency = <33333333>;
		interrupt-parent = <&mpic>;
		@@ -796,8 +796,8 @@
		#size-cells = <2>;
		#address-cells = <3>;
		device_type = "pci";
		ranges = <0x2000000 0x0 0xc0000000
		0x2000000 0x0 0xc0000000
		ranges = <0x2000000 0x0 0xe0000000
		0x2000000 0x0 0xe0000000
		0x0 0x20000000

		0x1000000 0x0 0x0

arch/powerpc/boot/dts/mpc8641_hpcn_36b.dts

+8 −8

Original line number	Diff line number	Diff line
		@@ -370,7 +370,7 @@
		#address-cells = <3>;
		reg = <0x0f 0xffe08000 0x0 0x1000>;
		bus-range = <0x0 0xff>;
		ranges = <0x02000000 0x0 0xc0000000 0x0c 0x00000000 0x0 0x20000000
		ranges = <0x02000000 0x0 0xe0000000 0x0c 0x00000000 0x0 0x20000000
		0x01000000 0x0 0x00000000 0x0f 0xffc00000 0x0 0x00010000>;
		clock-frequency = <33333333>;
		interrupt-parent = <&mpic>;
		@@ -496,8 +496,8 @@
		#size-cells = <2>;
		#address-cells = <3>;
		device_type = "pci";
		ranges = <0x02000000 0x0 0xc0000000
		0x02000000 0x0 0xc0000000
		ranges = <0x02000000 0x0 0xe0000000
		0x02000000 0x0 0xe0000000
		0x0 0x20000000

		0x01000000 0x0 0x00000000
		@@ -507,8 +507,8 @@
		reg = <0 0 0 0 0>;
		#size-cells = <2>;
		#address-cells = <3>;
		ranges = <0x02000000 0x0 0xc0000000
		0x02000000 0x0 0xc0000000
		ranges = <0x02000000 0x0 0xe0000000
		0x02000000 0x0 0xe0000000
		0x0 0x20000000
		0x01000000 0x0 0x00000000
		0x01000000 0x0 0x00000000
		@@ -579,7 +579,7 @@
		#address-cells = <3>;
		reg = <0x0f 0xffe09000 0x0 0x1000>;
		bus-range = <0x0 0xff>;
		ranges = <0x02000000 0x0 0xc0000000 0x0c 0x20000000 0x0 0x20000000
		ranges = <0x02000000 0x0 0xe0000000 0x0c 0x20000000 0x0 0x20000000
		0x01000000 0x0 0x00000000 0x0f 0xffc10000 0x0 0x00010000>;
		clock-frequency = <33333333>;
		interrupt-parent = <&mpic>;
		@@ -597,8 +597,8 @@
		#size-cells = <2>;
		#address-cells = <3>;
		device_type = "pci";
		ranges = <0x02000000 0x0 0xc0000000
		0x02000000 0x0 0xc0000000
		ranges = <0x02000000 0x0 0xe0000000
		0x02000000 0x0 0xe0000000
		0x0 0x20000000

		0x01000000 0x0 0x00000000