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authorDave Airlie <airlied@redhat.com>2016-05-17 06:36:08 +1000
committerDave Airlie <airlied@redhat.com>2016-05-17 06:36:08 +1000
commit76e9cab5403809fa1fa6f698d2f7c1b7dd224022 (patch)
tree67dd3fdb97467ba4c62b1544c0a97aa5a057f06e /arch/arc
parentcf15fabd6f66e966ae5744f088538f7936df9a4d (diff)
parentcb2ad5e5339c5122166265cea579cc6a356d46de (diff)
downloadlinux-76e9cab5403809fa1fa6f698d2f7c1b7dd224022.tar.bz2
Merge branch 'topic-arcpgu-updates' of https://github.com/foss-for-synopsys-dwc-arc-processors/linux into drm-next
Please pull this mini-series that allows ARC PGU to use dedicated memory location as framebuffer backing storage. * 'topic-arcpgu-updates' of https://github.com/foss-for-synopsys-dwc-arc-processors/linux: ARC: [axs10x] Specify reserved memory for frame buffer drm/arcpgu: use dedicated memory area for frame buffer
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/boot/dts/axc001.dtsi22
-rw-r--r--arch/arc/boot/dts/axc003.dtsi14
-rw-r--r--arch/arc/boot/dts/axc003_idu.dtsi14
-rw-r--r--arch/arc/boot/dts/axs10x_mb.dtsi2
4 files changed, 49 insertions, 3 deletions
diff --git a/arch/arc/boot/dts/axc001.dtsi b/arch/arc/boot/dts/axc001.dtsi
index 420dcfde289f..262496ac2628 100644
--- a/arch/arc/boot/dts/axc001.dtsi
+++ b/arch/arc/boot/dts/axc001.dtsi
@@ -93,8 +93,26 @@
memory {
#address-cells = <1>;
#size-cells = <1>;
- ranges = <0x00000000 0x80000000 0x40000000>;
+ ranges = <0x00000000 0x80000000 0x20000000>;
device_type = "memory";
- reg = <0x80000000 0x20000000>; /* 512MiB */
+ reg = <0x80000000 0x1b000000>; /* (512 - 32) MiB */
+ };
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ /*
+ * We just move frame buffer area to the very end of
+ * available DDR. And even though in case of ARC770 there's
+ * no strict requirement for a frame-buffer to be in any
+ * particular location it allows us to use the same
+ * base board's DT node for ARC PGU as for ARc HS38.
+ */
+ frame_buffer: frame_buffer@9e000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x9e000000 0x2000000>;
+ no-map;
+ };
};
};
diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi
index f90fadf7f94e..35ece04d8353 100644
--- a/arch/arc/boot/dts/axc003.dtsi
+++ b/arch/arc/boot/dts/axc003.dtsi
@@ -100,4 +100,18 @@
device_type = "memory";
reg = <0x80000000 0x20000000>; /* 512MiB */
};
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ /*
+ * Move frame buffer out of IOC aperture (0x8z-0xAz).
+ */
+ frame_buffer: frame_buffer@be000000 {
+ compatible = "shared-dma-pool";
+ reg = <0xbe000000 0x2000000>;
+ no-map;
+ };
+ };
};
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
index 06a9f294a2e6..df9ddb623bfe 100644
--- a/arch/arc/boot/dts/axc003_idu.dtsi
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -123,4 +123,18 @@
device_type = "memory";
reg = <0x80000000 0x20000000>; /* 512MiB */
};
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ /*
+ * Move frame buffer out of IOC aperture (0x8z-0xAz).
+ */
+ frame_buffer: frame_buffer@be000000 {
+ compatible = "shared-dma-pool";
+ reg = <0xbe000000 0x2000000>;
+ no-map;
+ };
+ };
};
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 8fee596888ef..c3ecb5e6b72d 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -275,7 +275,7 @@
encoder-slave = <&adv7511>;
clocks = <&pguclk>;
clock-names = "pxlclk";
-
+ memory-region = <&frame_buffer>;
port {
pgu_output: endpoint {
remote-endpoint = <&adv7511_input>;