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irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

PATCH New Marc Zyngier 4 participants 18 messages Feb 23, 2015 – Feb 25, 2015 1 message not in the archive

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#0 lore raw

v5 cover irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Based on 4.0-rc1.

* From v4: [4]
- Extracted from the full series
- Rebased on 4.0-rc1

* From v3 [3]:
- Rebased on top of the patch working around hardcoded IRQ on OMAP4/5 [4]
- Fixed more iMX6 DTs (Stephan)
- Fixed Exynos4/5 DTs

* From v2 [2]:
- Addressed numerous comments from Thierry
- Merged bug fixes from Nishanth
- Merged bug fix from Stefan

* From v1 [1]:
- Rebased on 3.19-rc3
- Fixed a number of additional platforms
- Added crossbar conversion to stacked domains
- Merged bug fixes from Nishanth

[4]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/317531.html
[3]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/315385.html
[2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/314041.html
[1]: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/307338.html

Marc Zyngier (7):
genirq: Add irqchip_set_wake_parent
irqchip: crossbar: convert dra7 crossbar to stacked domains
DT: update ti,irq-crossbar binding
irqchip: GIC: get rid of routable domain
DT: arm,gic: kill arm,routable-irqs
DT: omap4/5: add binding for the wake-up generator
ARM: omap: convert wakeupgen to stacked domains

 Documentation/devicetree/bindings/arm/gic.txt      |   6 -
 .../devicetree/bindings/arm/omap/crossbar.txt      |  18 +-
 .../interrupt-controller/ti,omap4-wugen-mpu        |  33 ++++
 arch/arm/boot/dts/am4372.dtsi                      |  11 +-
 arch/arm/boot/dts/am437x-gp-evm.dts                |   1 -
 arch/arm/boot/dts/am437x-sk-evm.dts                |   1 -
 arch/arm/boot/dts/am43x-epos-evm.dts               |   1 -
 arch/arm/boot/dts/am57xx-beagle-x15.dts            |   3 +-
 arch/arm/boot/dts/dra7-evm.dts                     |   2 +-
 arch/arm/boot/dts/dra7.dtsi                        |  43 +++--
 arch/arm/boot/dts/dra72-evm.dts                    |   1 -
 arch/arm/boot/dts/dra72x.dtsi                      |   3 +-
 arch/arm/boot/dts/dra74x.dtsi                      |   5 +-
 arch/arm/boot/dts/omap4-duovero.dtsi               |   2 -
 arch/arm/boot/dts/omap4-panda-common.dtsi          |   8 +-
 arch/arm/boot/dts/omap4-sdp.dts                    |   8 +-
 arch/arm/boot/dts/omap4-var-som-om44.dtsi          |   2 -
 arch/arm/boot/dts/omap4.dtsi                       |  18 +-
 arch/arm/boot/dts/omap5-cm-t54.dts                 |   1 -
 arch/arm/boot/dts/omap5-uevm.dts                   |   2 -
 arch/arm/boot/dts/omap5.dtsi                       |  26 ++-
 arch/arm/mach-omap2/omap-wakeupgen.c               | 125 ++++++++++---
 arch/arm/mach-omap2/omap-wakeupgen.h               |   1 -
 arch/arm/mach-omap2/omap4-common.c                 |  21 +--
 drivers/irqchip/irq-crossbar.c                     | 207 ++++++++++++---------
 drivers/irqchip/irq-gic.c                          |  59 +-----
 include/linux/irq.h                                |   1 +
 include/linux/irqchip/arm-gic.h                    |   6 -
 include/linux/irqchip/irq-crossbar.h               |  11 --
 kernel/irq/chip.c                                  |  16 ++
 30 files changed, 364 insertions(+), 278 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
 delete mode 100644 include/linux/irqchip/irq-crossbar.h
Signature · 1 line
2.1.4
#1 lore raw

PATCH v5 1/7 genirq: Add irqchip_set_wake_parent

This proves to be useful with stacked domains, when the current domain doesn't implement wake-up, but expect the parent to do so.

---
 include/linux/irq.h |  1 +
 kernel/irq/chip.c   | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)
include/linux/irq.h +1 -0
index d09ec7a..3057c48 100644
@@ -460,6 +460,7 @@ extern void irq_chip_eoi_parent(struct irq_data *data);
 extern int irq_chip_set_affinity_parent(struct irq_data *data,
 					const struct cpumask *dest,
 					bool force);
+extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on);
 #endif
 
 /* Handling of unhandled and spurious interrupts: */
kernel/irq/chip.c +16 -0
index 6f1c7a5..eb9a4ea 100644
@@ -948,6 +948,22 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data)
 
 	return -ENOSYS;
 }
+
+/**
+ * irq_chip_set_wake_parent - Set/reset wake-up on the parent interrupt
+ * @data:	Pointer to interrupt specific data
+ * @on:		Whether to set or reset the wake-up capability of this irq
+ *
+ * Conditional, as the underlying parent chip might not implement it.
+ */
+int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on)
+{
+	data = data->parent_data;
+	if (data->chip->irq_set_wake)
+		return data->chip->irq_set_wake(data, on);
+
+	return -ENOSYS;
+}
 #endif
 
 /**
Signature · 1 line
2.1.4
#2 lore raw

PATCH v5 2/7 irqchip: crossbar: convert dra7 crossbar to stacked domains

In reply to Marc Zyngier

Support for the TI crossbar used on the DRA7 family of chips is implemented as an ugly hack on the side of the GIC.

Converting it to stacked domains makes it slightly more palatable, as it results in a cleanup.

Unfortunately, as the DT bindings failed to acknowledge the fact that this is actually yet another interrupt controller (the third, actually), we have yet another breakage. Oh well.

---
 arch/arm/boot/dts/am57xx-beagle-x15.dts |   3 +-
 arch/arm/boot/dts/dra7-evm.dts          |   2 +-
 arch/arm/boot/dts/dra7.dtsi             |  35 +++---
 arch/arm/boot/dts/dra72-evm.dts         |   1 -
 arch/arm/boot/dts/dra72x.dtsi           |   3 +-
 arch/arm/boot/dts/dra74x.dtsi           |   5 +-
 arch/arm/mach-omap2/omap4-common.c      |   4 -
 drivers/irqchip/irq-crossbar.c          | 207 ++++++++++++++++++--------------
 include/linux/irqchip/irq-crossbar.h    |  11 --
 9 files changed, 146 insertions(+), 125 deletions(-)
 delete mode 100644 include/linux/irqchip/irq-crossbar.h
arch/arm/boot/dts/am57xx-beagle-x15.dts +1 -2
index 03750af..170fbf9 100644
@@ -454,7 +454,6 @@
 	mcp_rtc: rtc at 6f {
 		compatible = "microchip,mcp7941x";
 		reg = <0x6f>;
-		interrupt-parent = <&gic>;
 		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_LOW>;  /* IRQ_SYS_1N */
 
 		pinctrl-names = "default";
@@ -477,7 +476,7 @@
 
 &uart3 {
 	status = "okay";
-	interrupts-extended = <&gic GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
+	interrupts-extended = <&crossbar_mpu GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
 			      <&dra7_pmx_core 0x248>;
 
 	pinctrl-names = "default";
arch/arm/boot/dts/dra7-evm.dts +1 -1
index 746cddb..789ee58 100644
@@ -446,7 +446,7 @@
 	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart1_pins>;
-	interrupts-extended = <&gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+	interrupts-extended = <&crossbar_mpu GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
 			      <&dra7_pmx_core 0x3e0>;
 };
 
arch/arm/boot/dts/dra7.dtsi +19 -16
index 5827fed..850f949 100644
@@ -13,14 +13,13 @@
 #include "skeleton.dtsi"
 
 #define MAX_SOURCES 400
-#define DIRECT_IRQ(irq) (MAX_SOURCES + irq)
 
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
 
 	compatible = "ti,dra7xx";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&crossbar_mpu>;
 
 	aliases {
 		i2c0 = &i2c1;
@@ -50,18 +49,19 @@
 			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupt-parent = <&gic>;
 	};
 
 	gic: interrupt-controller at 48211000 {
 		compatible = "arm,cortex-a15-gic";
 		interrupt-controller;
 		#interrupt-cells = <3>;
-		arm,routable-irqs = <192>;
 		reg = <0x48211000 0x1000>,
 		      <0x48212000 0x1000>,
 		      <0x48214000 0x2000>,
 		      <0x48216000 0x2000>;
 		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupt-parent = <&gic>;
 	};
 
 	/*
@@ -91,8 +91,8 @@
 		ti,hwmods = "l3_main_1", "l3_main_2";
 		reg = <0x44000000 0x1000000>,
 		      <0x45000000 0x1000>;
-		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI DIRECT_IRQ(10) IRQ_TYPE_LEVEL_HIGH>;
+		interrupts-extended = <&crossbar_mpu GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+				      <&gic GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
 
 		prm: prm at 4ae06000 {
 			compatible = "ti,dra7-prm";
@@ -344,7 +344,7 @@
 		uart1: serial at 4806a000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806a000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts-extended = <&crossbar_mpu GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart1";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -355,7 +355,7 @@
 		uart2: serial at 4806c000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806c000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart2";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -366,7 +366,7 @@
 		uart3: serial at 48020000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48020000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart3";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -377,7 +377,7 @@
 		uart4: serial at 4806e000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806e000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
                         status = "disabled";
@@ -388,7 +388,7 @@
 		uart5: serial at 48066000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48066000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart5";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -399,7 +399,7 @@
 		uart6: serial at 48068000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48068000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart6";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -410,7 +410,7 @@
 		uart7: serial at 48420000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48420000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart7";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -419,7 +419,7 @@
 		uart8: serial at 48422000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48422000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart8";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -428,7 +428,7 @@
 		uart9: serial at 48424000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48424000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart9";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -437,7 +437,7 @@
 		uart10: serial at 4ae2b000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4ae2b000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart10";
 			clock-frequency = <48000000>;
 			status = "disabled";
@@ -1337,9 +1337,12 @@
 			status = "disabled";
 		};
 
-		crossbar_mpu: crossbar at 4a020000 {
+		crossbar_mpu: crossbar at 4a002a48 {
 			compatible = "ti,irq-crossbar";
 			reg = <0x4a002a48 0x130>;
+			interrupt-controller;
+			interrupt-parent = <&gic>;
+			#interrupt-cells = <3>;
 			ti,max-irqs = <160>;
 			ti,max-crossbar-sources = <MAX_SOURCES>;
 			ti,reg-size = <2>;
arch/arm/boot/dts/dra72-evm.dts +0 -1
index 4d87117..2373054 100644
@@ -160,7 +160,6 @@
 		pinctrl-0 = <&tps65917_pins_default>;
 
 		interrupts = <GIC_SPI 2 IRQ_TYPE_NONE>;  /* IRQ_SYS_1N */
-		interrupt-parent = <&gic>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
 
arch/arm/boot/dts/dra72x.dtsi +2 -1
index e5a3d23..e782bf1 100644
@@ -25,6 +25,7 @@
 
 	pmu {
 		compatible = "arm,cortex-a15-pmu";
-		interrupts = <GIC_SPI DIRECT_IRQ(131) IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
 	};
 };
arch/arm/boot/dts/dra74x.dtsi +3 -2
index 10173fa..0fc758d 100644
@@ -41,8 +41,9 @@
 
 	pmu {
 		compatible = "arm,cortex-a15-pmu";
-		interrupts = <GIC_SPI DIRECT_IRQ(131) IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI DIRECT_IRQ(132) IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
 	ocp {
arch/arm/mach-omap2/omap4-common.c +0 -4
index cee0fe1..cf7aafb 100644
@@ -22,7 +22,6 @@
 #include <linux/of_platform.h>
 #include <linux/export.h>
 #include <linux/irqchip/arm-gic.h>
-#include <linux/irqchip/irq-crossbar.h>
 #include <linux/of_address.h>
 #include <linux/reboot.h>
 #include <linux/genalloc.h>
@@ -292,8 +291,5 @@ void __init omap_gic_of_init(void)
 
 skip_errata_init:
 	omap_wakeupgen_init();
-#ifdef CONFIG_IRQ_CROSSBAR
-	irqcrossbar_init();
-#endif
 	irqchip_init();
 }
drivers/irqchip/irq-crossbar.c +120 -87

298 lines not on this page · raw message

include/linux/irqchip/irq-crossbar.h deleted +0 -11
deleted file mode 100644
index e5537b8..0000000
@@ -1,11 +0,0 @@
-/*
- *  drivers/irqchip/irq-crossbar.h
- *
- *  Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-int irqcrossbar_init(void);
Signature · 1 line
2.1.4
#3 lore raw

PATCH v5 3/7 DT: update ti,irq-crossbar binding

In reply to Marc Zyngier

Make it look like a real interrupt controller.

---
 .../devicetree/bindings/arm/omap/crossbar.txt          | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)
Documentation/devicetree/bindings/arm/omap/crossbar.txt +5 -13
index 4139db3..a9b28d7 100644
@@ -9,7 +9,9 @@ inputs.
 Required properties:
 - compatible : Should be "ti,irq-crossbar"
 - reg: Base address and the size of the crossbar registers.
-- ti,max-irqs: Total number of irqs available at the interrupt controller.
+- interrupt-controller: indicates that this block is an interrupt controller.
+- interrupt-parent: the interrupt controller this block is connected to.
+- ti,max-irqs: Total number of irqs available at the parent interrupt controller.
 - ti,max-crossbar-sources: Maximum number of crossbar sources that can be routed.
 - ti,reg-size: Size of a individual register in bytes. Every individual
 	    register is assumed to be of same size. Valid sizes are 1, 2, 4.
@@ -27,13 +29,13 @@ Optional properties:
   when the interrupt controller irq is unused (when not provided, default is 0)
 
 Examples:
-		crossbar_mpu: @4a020000 {
+		crossbar_mpu: crossbar at 4a002a48 {
 			compatible = "ti,irq-crossbar";
 			reg = <0x4a002a48 0x130>;
 			ti,max-irqs = <160>;
 			ti,max-crossbar-sources = <400>;
 			ti,reg-size = <2>;
-			ti,irqs-reserved = <0 1 2 3 5 6 131 132 139 140>;
+			ti,irqs-reserved = <0 1 2 3 5 6 131 132>;
 			ti,irqs-skip = <10 133 139 140>;
 		};
 
@@ -44,10 +46,6 @@ Documentation/devicetree/bindings/arm/gic.txt for further details.
 
 An interrupt consumer on an SoC using crossbar will use:
 	interrupts = <GIC_SPI request_number interrupt_level>
-When the request number is between 0 to that described by
-"ti,max-crossbar-sources", it is assumed to be a crossbar mapping. If the
-request_number is greater than "ti,max-crossbar-sources", then it is mapped as a
-quirky hardware mapping direct to GIC.
 
 Example:
 	device_x at 0x4a023000 {
@@ -55,9 +53,3 @@ Example:
 		interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
 		...
 	};
-
-	device_y at 0x4a033000 {
-		/* Direct mapped GIC SPI 1 used */
-		interrupts = <GIC_SPI DIRECT_IRQ(1) IRQ_TYPE_LEVEL_HIGH>;
-		...
-	};
Signature · 1 line
2.1.4
#4 lore raw

PATCH v5 4/7 irqchip: GIC: get rid of routable domain

In reply to Marc Zyngier

The only user of the so called "routable domain" functionality now being fixed, let's clean up the GIC.

---
 drivers/irqchip/irq-gic.c       | 59 ++++-------------------------------------
 include/linux/irqchip/arm-gic.h |  6 -----
 2 files changed, 5 insertions(+), 60 deletions(-)
drivers/irqchip/irq-gic.c +5 -54
index 4634cf7..e3ca6da 100644
@@ -798,15 +798,12 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
 		irq_domain_set_info(d, irq, hw, &gic_chip, d->host_data,
 				    handle_fasteoi_irq, NULL, NULL);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-
-		gic_routable_irq_domain_ops->map(d, irq, hw);
 	}
 	return 0;
 }
 
 static void gic_irq_domain_unmap(struct irq_domain *d, unsigned int irq)
 {
-	gic_routable_irq_domain_ops->unmap(d, irq);
 }
 
 static int gic_irq_domain_xlate(struct irq_domain *d,
@@ -825,16 +822,8 @@ static int gic_irq_domain_xlate(struct irq_domain *d,
 	*out_hwirq = intspec[1] + 16;
 
 	/* For SPIs, we need to add 16 more to get the GIC irq ID number */
-	if (!intspec[0]) {
-		ret = gic_routable_irq_domain_ops->xlate(d, controller,
-							 intspec,
-							 intsize,
-							 out_hwirq,
-							 out_type);
-
-		if (IS_ERR_VALUE(ret))
-			return ret;
-	}
+	if (!intspec[0])
+		*out_hwirq += 16;
 
 	*out_type = intspec[2] & IRQ_TYPE_SENSE_MASK;
 
@@ -891,37 +880,6 @@ static const struct irq_domain_ops gic_irq_domain_ops = {
 	.xlate = gic_irq_domain_xlate,
 };
 
-/* Default functions for routable irq domain */
-static int gic_routable_irq_domain_map(struct irq_domain *d, unsigned int irq,
-			      irq_hw_number_t hw)
-{
-	return 0;
-}
-
-static void gic_routable_irq_domain_unmap(struct irq_domain *d,
-					  unsigned int irq)
-{
-}
-
-static int gic_routable_irq_domain_xlate(struct irq_domain *d,
-				struct device_node *controller,
-				const u32 *intspec, unsigned int intsize,
-				unsigned long *out_hwirq,
-				unsigned int *out_type)
-{
-	*out_hwirq += 16;
-	return 0;
-}
-
-static const struct irq_domain_ops gic_default_routable_irq_domain_ops = {
-	.map = gic_routable_irq_domain_map,
-	.unmap = gic_routable_irq_domain_unmap,
-	.xlate = gic_routable_irq_domain_xlate,
-};
-
-const struct irq_domain_ops *gic_routable_irq_domain_ops =
-					&gic_default_routable_irq_domain_ops;
-
 void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 			   void __iomem *dist_base, void __iomem *cpu_base,
 			   u32 percpu_offset, struct device_node *node)
@@ -929,7 +887,6 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 	irq_hw_number_t hwirq_base;
 	struct gic_chip_data *gic;
 	int gic_irqs, irq_base, i;
-	int nr_routable_irqs;
 
 	BUG_ON(gic_nr >= MAX_GIC_NR);
 
@@ -985,15 +942,9 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 	gic->gic_irqs = gic_irqs;
 
 	if (node) {		/* DT case */
-		const struct irq_domain_ops *ops = &gic_irq_domain_hierarchy_ops;
-
-		if (!of_property_read_u32(node, "arm,routable-irqs",
-					  &nr_routable_irqs)) {
-			ops = &gic_irq_domain_ops;
-			gic_irqs = nr_routable_irqs;
-		}
-
-		gic->domain = irq_domain_add_linear(node, gic_irqs, ops, gic);
+		gic->domain = irq_domain_add_linear(node, gic_irqs,
+						    &gic_irq_domain_hierarchy_ops,
+						    gic);
 	} else {		/* Non-DT case */
 		/*
 		 * For primary GICs, skip over SGIs.
include/linux/irqchip/arm-gic.h +0 -6
index 71d706d..3978c5b 100644
@@ -115,11 +115,5 @@ int gic_get_cpu_id(unsigned int cpu);
 void gic_migrate_target(unsigned int new_cpu_id);
 unsigned long gic_get_sgir_physaddr(void);
 
-extern const struct irq_domain_ops *gic_routable_irq_domain_ops;
-static inline void __init register_routable_domain_ops
-					(const struct irq_domain_ops *ops)
-{
-	gic_routable_irq_domain_ops = ops;
-}
 #endif /* __ASSEMBLY */
 #endif
Signature · 1 line
2.1.4
#5 lore raw

PATCH v5 5/7 DT: arm,gic: kill arm,routable-irqs

In reply to Marc Zyngier

Nobody will regret it.

---
 Documentation/devicetree/bindings/arm/gic.txt | 6 ------
 1 file changed, 6 deletions(-)
Documentation/devicetree/bindings/arm/gic.txt +0 -6
index c97484b..1e0d212 100644
@@ -56,11 +56,6 @@ Optional
   regions, used when the GIC doesn't have banked registers. The offset is
   cpu-offset * cpu-nr.
 
-- arm,routable-irqs : Total number of gic irq inputs which are not directly
-		  connected from the peripherals, but are routed dynamically
-		  by a crossbar/multiplexer preceding the GIC. The GIC irq
-		  input line is assigned dynamically when the corresponding
-		  peripheral's crossbar line is mapped.
 Example:
 
 	intc: interrupt-controller at fff11000 {
@@ -68,7 +63,6 @@ Example:
 		#interrupt-cells = <3>;
 		#address-cells = <1>;
 		interrupt-controller;
-		arm,routable-irqs = <160>;
 		reg = <0xfff11000 0x1000>,
 		      <0xfff10100 0x100>;
 	};
Signature · 1 line
2.1.4
#6 lore raw

PATCH v5 6/7 DT: omap4/5: add binding for the wake-up generator

In reply to Marc Zyngier
---
 .../interrupt-controller/ti,omap4-wugen-mpu        | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu new file +33 -0
new file mode 100644
index 0000000..43effa0
@@ -0,0 +1,33 @@
+TI OMAP4 Wake-up Generator
+
+All TI OMAP4/5 (and their derivatives) an interrupt controller that
+routes interrupts to the GIC, and also serves as a wakeup source. It
+is also referred to as "WUGEN-MPU", hence the name of the binding.
+
+Reguired properties:
+
+- compatible : should contain at least "ti,omap4-wugen-mpu" or
+  "ti,omap5-wugen-mpu"
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value must be 3.
+- interrupt-parent : a phandle to the GIC these interrupts are routed
+  to.
+
+Notes:
+
+- Because this HW ultimately routes interrupts to the GIC, the
+  interrupt specifier must be that of the GIC.
+- Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs
+  are explicitly forbiden.
+
+Example:
+
+       wakeupgen: interrupt-controller at 48281000 {
+               compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
+               interrupt-controller;
+               #interrupt-cells = <3>;
+               reg = <0x48281000 0x1000>;
+               interrupt-parent = <&gic>;
+       };
Signature · 1 line
2.1.4
#7 lore raw

PATCH v5 7/7 ARM: omap: convert wakeupgen to stacked domains

In reply to Marc Zyngier

OMAP4/5 has been (ab)using the gic_arch_extn to provide wakeup from suspend, and it makes a lot of sense to convert this code to use stacked domains instead.

This patch does just this, updating the DT files to actually reflect what the HW provides.

BIG FAT WARNING: because the DTs were so far lying by not exposing the WUGEN HW block, kernels with this patch applied won't have any suspend-resume facility when booted with old DTs, and old kernels with updated DTs won't even boot.

On a platform with this patch applied, the system looks like this:

root at bacon-fat:~# cat /proc/interrupts
CPU0 CPU1

 16:          0          0     WUGEN  37  gp_timer
 19:     233799     155916       GIC  27  arch_timer
 23:          0          0     WUGEN   9  l3-dbg-irq
 24:          1          0     WUGEN  10  l3-app-irq
 27:        282          0     WUGEN  13  omap-dma-engine
 44:          0          0  4ae10000.gpio  13  DMA
294:          0          0     WUGEN  20  gpmc
297:        506          0     WUGEN  56  48070000.i2c
298:          0          0     WUGEN  57  48072000.i2c
299:          0          0     WUGEN  61  48060000.i2c
300:          0          0     WUGEN  62  4807a000.i2c
301:          8          0     WUGEN  60  4807c000.i2c
308:       2439          0     WUGEN  74  OMAP UART2
312:        362          0     WUGEN  83  mmc2
313:        502          0     WUGEN  86  mmc0
314:         13          0     WUGEN  94  mmc1
350:          0          0      PRCM  pinctrl, pinctrl
406:   35155709          0       GIC 109  ehci_hcd:usb1
407:          0          0     WUGEN   7  palmas
409:          0          0     WUGEN 119  twl6040
410:          0          0   twl6040   5  twl6040_irq_ready
411:          0          0   twl6040   0  twl6040_irq_th
IPI0:          0          1  CPU wakeup interrupts
IPI1:          0          0  Timer broadcast interrupts
IPI2:      95334     902334  Rescheduling interrupts
IPI3:          0          0  Function call interrupts
IPI4:        479        648  Single function call interrupts
IPI5:          0          0  CPU stop interrupts
IPI6:          0          0  IRQ work interrupts
IPI7:          0          0  completion interrupts
Err:          0
---
 arch/arm/boot/dts/am4372.dtsi             |  11 ++-
 arch/arm/boot/dts/am437x-gp-evm.dts       |   1 -
 arch/arm/boot/dts/am437x-sk-evm.dts       |   1 -
 arch/arm/boot/dts/am43x-epos-evm.dts      |   1 -
 arch/arm/boot/dts/dra7.dtsi               |  12 ++-
 arch/arm/boot/dts/dra72x.dtsi             |   2 +-
 arch/arm/boot/dts/dra74x.dtsi             |   2 +-
 arch/arm/boot/dts/omap4-duovero.dtsi      |   2 -
 arch/arm/boot/dts/omap4-panda-common.dtsi |   8 +-
 arch/arm/boot/dts/omap4-sdp.dts           |   8 +-
 arch/arm/boot/dts/omap4-var-som-om44.dtsi |   2 -
 arch/arm/boot/dts/omap4.dtsi              |  18 ++++-
 arch/arm/boot/dts/omap5-cm-t54.dts        |   1 -
 arch/arm/boot/dts/omap5-uevm.dts          |   2 -
 arch/arm/boot/dts/omap5.dtsi              |  26 ++++---
 arch/arm/mach-omap2/omap-wakeupgen.c      | 125 +++++++++++++++++++++++-------
 arch/arm/mach-omap2/omap-wakeupgen.h      |   1 -
 arch/arm/mach-omap2/omap4-common.c        |  17 ++--
 18 files changed, 162 insertions(+), 78 deletions(-)
arch/arm/boot/dts/am4372.dtsi +10 -1
index 1943fc3..8a099bc 100644
@@ -15,7 +15,7 @@
 
 / {
 	compatible = "ti,am4372", "ti,am43";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&wakeupgen>;
 
 
 	aliases {
@@ -48,6 +48,15 @@
 		#interrupt-cells = <3>;
 		reg = <0x48241000 0x1000>,
 		      <0x48240100 0x0100>;
+		interrupt-parent = <&gic>;
+	};
+
+	wakeupgen: interrupt-controller at 48281000 {
+		compatible = "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
 	};
 
 	l2-cache-controller at 48242000 {
arch/arm/boot/dts/am437x-gp-evm.dts +0 -1
index f84d971..26956cb 100644
@@ -352,7 +352,6 @@
 		reg = <0x24>;
 		compatible = "ti,tps65218";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
-		interrupt-parent = <&gic>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
 
arch/arm/boot/dts/am437x-sk-evm.dts +0 -1
index 832d243..8ae29c9 100644
@@ -392,7 +392,6 @@
 	tps at 24 {
 		compatible = "ti,tps65218";
 		reg = <0x24>;
-		interrupt-parent = <&gic>;
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
arch/arm/boot/dts/am43x-epos-evm.dts +0 -1
index 257c099..1d71091 100644
@@ -369,7 +369,6 @@
 		reg = <0x24>;
 		compatible = "ti,tps65218";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* NMIn */
-		interrupt-parent = <&gic>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
 
arch/arm/boot/dts/dra7.dtsi +10 -2
index 850f949..c65eea0 100644
@@ -64,6 +64,14 @@
 		interrupt-parent = <&gic>;
 	};
 
+	wakeupgen: interrupt-controller at 48281000 {
+		compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
+	};
+
 	/*
 	 * The soc node represents the soc top level view. It is used for IPs
 	 * that are not memory mapped in the MPU view or for the MPU itself.
@@ -92,7 +100,7 @@
 		reg = <0x44000000 0x1000000>,
 		      <0x45000000 0x1000>;
 		interrupts-extended = <&crossbar_mpu GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
-				      <&gic GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+				      <&wakeupgen GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
 
 		prm: prm at 4ae06000 {
 			compatible = "ti,dra7-prm";
@@ -1341,7 +1349,7 @@
 			compatible = "ti,irq-crossbar";
 			reg = <0x4a002a48 0x130>;
 			interrupt-controller;
-			interrupt-parent = <&gic>;
+			interrupt-parent = <&wakeupgen>;
 			#interrupt-cells = <3>;
 			ti,max-irqs = <160>;
 			ti,max-crossbar-sources = <MAX_SOURCES>;
arch/arm/boot/dts/dra72x.dtsi +1 -1
index e782bf1..f7fb0d0 100644
@@ -25,7 +25,7 @@
 
 	pmu {
 		compatible = "arm,cortex-a15-pmu";
-		interrupt-parent = <&gic>;
+		interrupt-parent = <&wakeupgen>;
 		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
 	};
 };
arch/arm/boot/dts/dra74x.dtsi +1 -1
index 0fc758d..00eeed7 100644
@@ -41,7 +41,7 @@
 
 	pmu {
 		compatible = "arm,cortex-a15-pmu";
-		interrupt-parent = <&gic>;
+		interrupt-parent = <&wakeupgen>;
 		interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
 	};
arch/arm/boot/dts/omap4-duovero.dtsi +0 -2
index e860ccd..f2a94fa 100644
@@ -173,14 +173,12 @@
 	twl: twl at 48 {
 		reg = <0x48>;
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;		/* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl at 4b {
 		compatible = "ti,twl6040";
 		reg = <0x4b>;
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;		/* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio6 0 GPIO_ACTIVE_HIGH>;		/* gpio_160 */
 
 		vio-supply = <&v1v8>;
arch/arm/boot/dts/omap4-panda-common.dtsi +3 -5
index 1505135..7c15fb2 100644
@@ -372,7 +372,6 @@
 		reg = <0x48>;
 		/* IRQ# = 7 */
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl at 4b {
@@ -384,7 +383,6 @@
 
 		/* IRQ# = 119 */
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio4 31 GPIO_ACTIVE_HIGH>;  /* gpio line 127 */
 
 		vio-supply = <&v1v8>;
@@ -479,17 +477,17 @@
 };
 
 &uart2 {
-	interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART2_RX>;
 };
 
 &uart3 {
-	interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART3_RX>;
 };
 
 &uart4 {
-	interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART4_RX>;
 };
 
arch/arm/boot/dts/omap4-sdp.dts +3 -5
index 3e1da43..8aca8da 100644
@@ -363,7 +363,6 @@
 		reg = <0x48>;
 		/* SPI = 0, IRQ# = 7, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl at 4b {
@@ -375,7 +374,6 @@
 
 		/* SPI = 0, IRQ# = 119, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio4 31 0>;  /* gpio line 127 */
 
 		vio-supply = <&v1v8>;
@@ -570,21 +568,21 @@
 };
 
 &uart2 {
-	interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART2_RX>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart2_pins>;
 };
 
 &uart3 {
-	interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART3_RX>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_pins>;
 };
 
 &uart4 {
-	interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
+	interrupts-extended = <&wakeupgen GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core OMAP4_UART4_RX>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart4_pins>;
arch/arm/boot/dts/omap4-var-som-om44.dtsi +0 -2
index 062701e..a4f1ba2 100644
@@ -185,7 +185,6 @@
 		reg = <0x48>;
 		/* SPI = 0, IRQ# = 7, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_1N cascaded to gic */
-		interrupt-parent = <&gic>;
 	};
 
 	twl6040: twl at 4b {
@@ -197,7 +196,6 @@
 
 		/* SPI = 0, IRQ# = 119, 4 = active high level-sensitive */
 		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio6 22 0>; /* gpio 182 */
 
 		vio-supply = <&v1v8>;
arch/arm/boot/dts/omap4.dtsi +14 -4
index 074147c..7cb5236 100644
@@ -14,7 +14,7 @@
 
 / {
 	compatible = "ti,omap4430", "ti,omap4";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&wakeupgen>;
 
 	aliases {
 		i2c0 = &i2c1;
@@ -56,6 +56,7 @@
 		#interrupt-cells = <3>;
 		reg = <0x48241000 0x1000>,
 		      <0x48240100 0x0100>;
+		interrupt-parent = <&gic>;
 	};
 
 	L2: l2-cache-controller at 48242000 {
@@ -70,6 +71,15 @@
 		clocks = <&mpu_periphclk>;
 		reg = <0x48240600 0x20>;
 		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_HIGH)>;
+		interrupt-parent = <&gic>;
+	};
+
+	wakeupgen: interrupt-controller at 48281000 {
+		compatible = "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
 	};
 
 	/*
@@ -319,7 +329,7 @@
 		uart2: serial at 4806c000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806c000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart2";
 			clock-frequency = <48000000>;
 		};
@@ -327,7 +337,7 @@
 		uart3: serial at 48020000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48020000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart3";
 			clock-frequency = <48000000>;
 		};
@@ -335,7 +345,7 @@
 		uart4: serial at 4806e000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806e000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
 		};
arch/arm/boot/dts/omap5-cm-t54.dts +0 -1
index b54b271..61ad2ea 100644
@@ -412,7 +412,6 @@
 	palmas: palmas at 48 {
 		compatible = "ti,palmas";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* IRQ_SYS_1N */
-		interrupt-parent = <&gic>;
 		reg = <0x48>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
arch/arm/boot/dts/omap5-uevm.dts +0 -2
index 159720d..74777a6 100644
@@ -311,7 +311,6 @@
 	palmas: palmas at 48 {
 		compatible = "ti,palmas";
 		interrupts = <GIC_SPI 7 IRQ_TYPE_NONE>; /* IRQ_SYS_1N */
-		interrupt-parent = <&gic>;
 		reg = <0x48>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
@@ -521,7 +520,6 @@
 		pinctrl-0 = <&twl6040_pins>;
 
 		interrupts = <GIC_SPI 119 IRQ_TYPE_NONE>; /* IRQ_SYS_2N cascaded to gic */
-		interrupt-parent = <&gic>;
 		ti,audpwron-gpio = <&gpio5 13 0>;  /* gpio line 141 */
 
 		vio-supply = <&smps7_reg>;
arch/arm/boot/dts/omap5.dtsi +17 -9
index b321fdf..b056156 100644
@@ -18,7 +18,7 @@
 	#size-cells = <1>;
 
 	compatible = "ti,omap5";
-	interrupt-parent = <&gic>;
+	interrupt-parent = <&wakeupgen>;
 
 	aliases {
 		i2c0 = &i2c1;
@@ -79,6 +79,7 @@
 			     <GIC_PPI 14 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>;
+		interrupt-parent = <&gic>;
 	};
 
 	pmu {
@@ -95,6 +96,15 @@
 		      <0x48212000 0x1000>,
 		      <0x48214000 0x2000>,
 		      <0x48216000 0x2000>;
+		interrupt-parent = <&gic>;
+	};
+
+	wakeupgen: interrupt-controller at 48281000 {
+		compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48281000 0x1000>;
+		interrupt-parent = <&gic>;
 	};
 
 	/*
@@ -458,7 +468,7 @@
 		uart1: serial at 4806a000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806a000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart1";
 			clock-frequency = <48000000>;
 		};
@@ -466,7 +476,7 @@
 		uart2: serial at 4806c000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806c000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart2";
 			clock-frequency = <48000000>;
 		};
@@ -474,7 +484,7 @@
 		uart3: serial at 48020000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48020000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart3";
 			clock-frequency = <48000000>;
 		};
@@ -482,7 +492,7 @@
 		uart4: serial at 4806e000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x4806e000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
 		};
@@ -490,7 +500,7 @@
 		uart5: serial at 48066000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48066000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart5";
 			clock-frequency = <48000000>;
 		};
@@ -498,7 +508,7 @@
 		uart6: serial at 48068000 {
 			compatible = "ti,omap4-uart";
 			reg = <0x48068000 0x100>;
-			interrupts-extended = <&gic GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "uart6";
 			clock-frequency = <48000000>;
 		};
@@ -883,14 +893,12 @@
 			usbhsohci: ohci at 4a064800 {
 				compatible = "ti,ohci-omap3";
 				reg = <0x4a064800 0x400>;
-				interrupt-parent = <&gic>;
 				interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
 			};
 
 			usbhsehci: ehci at 4a064c00 {
 				compatible = "ti,ehci-omap";
 				reg = <0x4a064c00 0x400>;
-				interrupt-parent = <&gic>;
 				interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
 			};
 		};
arch/arm/mach-omap2/omap-wakeupgen.c +95 -30

192 lines not on this page · raw message

arch/arm/mach-omap2/omap-wakeupgen.h +0 -1
index b3c8ecc..a3491ad 100644
@@ -33,7 +33,6 @@
 #define OMAP_TIMESTAMPCYCLELO			0xc08
 #define OMAP_TIMESTAMPCYCLEHI			0xc0c
 
-extern int __init omap_wakeupgen_init(void);
 extern void __iomem *omap_get_wakeupgen_base(void);
 extern int omap_secure_apis_support(void);
 #endif
arch/arm/mach-omap2/omap4-common.c +8 -9
index cf7aafb..fba1ba7 100644
@@ -241,26 +241,26 @@ static int __init omap4_sar_ram_init(void)
 }
 omap_early_initcall(omap4_sar_ram_init);
 
-static const struct of_device_id gic_match[] = {
-	{ .compatible = "arm,cortex-a9-gic", },
-	{ .compatible = "arm,cortex-a15-gic", },
+static const struct of_device_id intc_match[] = {
+	{ .compatible = "ti,omap4-wugen-mpu", },
+	{ .compatible = "ti,omap5-wugen-mpu", },
 	{ },
 };
 
-static struct device_node *gic_node;
+static struct device_node *intc_node;
 
 unsigned int omap4_xlate_irq(unsigned int hwirq)
 {
 	struct of_phandle_args irq_data;
 	unsigned int irq;
 
-	if (!gic_node)
-		gic_node = of_find_matching_node(NULL, gic_match);
+	if (!intc_node)
+		intc_node = of_find_matching_node(NULL, intc_match);
 
-	if (WARN_ON(!gic_node))
+	if (WARN_ON(!intc_node))
 		return hwirq;
 
-	irq_data.np = gic_node;
+	irq_data.np = intc_node;
 	irq_data.args_count = 3;
 	irq_data.args[0] = 0;
 	irq_data.args[1] = hwirq - OMAP44XX_IRQ_GIC_START;
@@ -290,6 +290,5 @@ void __init omap_gic_of_init(void)
 	WARN_ON(!twd_base);
 
 skip_errata_init:
-	omap_wakeupgen_init();
 	irqchip_init();
 }
Signature · 1 line
2.1.4
#8 lore raw

v5 cover irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

In reply to Marc Zyngier
Quoted 79 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Based on 4.0-rc1.

* From v4: [4]
- Extracted from the full series
- Rebased on 4.0-rc1

* From v3 [3]:
- Rebased on top of the patch working around hardcoded IRQ on OMAP4/5 [4]
- Fixed more iMX6 DTs (Stephan)
- Fixed Exynos4/5 DTs

* From v2 [2]:
- Addressed numerous comments from Thierry
- Merged bug fixes from Nishanth
- Merged bug fix from Stefan

* From v1 [1]:
- Rebased on 3.19-rc3
- Fixed a number of additional platforms
- Added crossbar conversion to stacked domains
- Merged bug fixes from Nishanth

[4]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/317531.html
[3]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/315385.html
[2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/314041.html
[1]: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/307338.html

Marc Zyngier (7):
genirq: Add irqchip_set_wake_parent
irqchip: crossbar: convert dra7 crossbar to stacked domains
DT: update ti,irq-crossbar binding
irqchip: GIC: get rid of routable domain
DT: arm,gic: kill arm,routable-irqs
DT: omap4/5: add binding for the wake-up generator
ARM: omap: convert wakeupgen to stacked domains

 Documentation/devicetree/bindings/arm/gic.txt      |   6 -
 .../devicetree/bindings/arm/omap/crossbar.txt      |  18 +-
 .../interrupt-controller/ti,omap4-wugen-mpu        |  33 ++++
 arch/arm/boot/dts/am4372.dtsi                      |  11 +-
 arch/arm/boot/dts/am437x-gp-evm.dts                |   1 -
 arch/arm/boot/dts/am437x-sk-evm.dts                |   1 -
 arch/arm/boot/dts/am43x-epos-evm.dts               |   1 -
 arch/arm/boot/dts/am57xx-beagle-x15.dts            |   3 +-
 arch/arm/boot/dts/dra7-evm.dts                     |   2 +-
 arch/arm/boot/dts/dra7.dtsi                        |  43 +++--
 arch/arm/boot/dts/dra72-evm.dts                    |   1 -
 arch/arm/boot/dts/dra72x.dtsi                      |   3 +-
 arch/arm/boot/dts/dra74x.dtsi                      |   5 +-
 arch/arm/boot/dts/omap4-duovero.dtsi               |   2 -
 arch/arm/boot/dts/omap4-panda-common.dtsi          |   8 +-
 arch/arm/boot/dts/omap4-sdp.dts                    |   8 +-
 arch/arm/boot/dts/omap4-var-som-om44.dtsi          |   2 -
 arch/arm/boot/dts/omap4.dtsi                       |  18 +-
 arch/arm/boot/dts/omap5-cm-t54.dts                 |   1 -
 arch/arm/boot/dts/omap5-uevm.dts                   |   2 -
 arch/arm/boot/dts/omap5.dtsi                       |  26 ++-
 arch/arm/mach-omap2/omap-wakeupgen.c               | 125 ++++++++++---
 arch/arm/mach-omap2/omap-wakeupgen.h               |   1 -
 arch/arm/mach-omap2/omap4-common.c                 |  21 +--
 drivers/irqchip/irq-crossbar.c                     | 207 ++++++++++++---------
Quoted 8 lines
 drivers/irqchip/irq-gic.c                          |  59 +-----
 include/linux/irq.h                                |   1 +
 include/linux/irqchip/arm-gic.h                    |   6 -
 include/linux/irqchip/irq-crossbar.h               |  11 --
 kernel/irq/chip.c                                  |  16 ++
 30 files changed, 364 insertions(+), 278 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
 delete mode 100644 include/linux/irqchip/irq-crossbar.h

marc-test-irq (Applied the series to v4.0-rc1) - boot logs:
1: am335x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469913
2: am335x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469914
3: am3517-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469915
4: am37x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469916
5: am437x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469917
6: am43xx-epos: BOOT: PASS: http://paste.ubuntu.org.cn/2469918
7: am43xx-gpevm: BOOT: PASS: http://paste.ubuntu.org.cn/2469919
8: BeagleBoard-XM: BOOT: PASS: http://paste.ubuntu.org.cn/2469920
9: beagleboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469928
10: beaglebone-black: BOOT: PASS: http://paste.ubuntu.org.cn/2469932

11:                     beaglebone: BOOT: PASS: http://paste.ubuntu.org.cn/2469936
12:                     craneboard: BOOT: PASS: http://paste.ubuntu.org.cn/2469941
13:                     dra72x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469945
14:                     dra7xx-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469946

15: OMAP3430-Labrador(LDP): BOOT: PASS: http://paste.ubuntu.org.cn/2469947
16: n900: BOOT: PASS: http://paste.ubuntu.org.cn/2469948
17: omap5-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469949
18: pandaboard-es: BOOT: PASS: http://paste.ubuntu.org.cn/2469950
19: pandaboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469951

20:                        sdp2430: BOOT: PASS: http://paste.ubuntu.org.cn/2469952
21:                        sdp3430: BOOT: PASS: http://paste.ubuntu.org.cn/2469953
22:                        sdp4430: BOOT: PASS: http://paste.ubuntu.org.cn/2469954

TOTAL = 22 boards, Booted Boards = 22, No Boot boards = 0

(also tested beagleboard-x15 which was not on farm: http://paste.ubuntu.org.cn/2470017 - looks good as well).

Comparative boot logs for v4.0-rc1:
https://github.com/nmenon/kernel-test-logs/tree/v4.0-rc1

Will dig in detail a little later.. but nothing major stuck out to me.

Quoted 4 lines
Signature · 2 lines
-- 
2.1.4
Signature · 2 lines
Regards,
Nishanth Menon
#9 lore raw

v5 cover irqchip: Move OMAP{4, 5}/DRA7 to use stacked domains

Quoted 109 lines · Nishanth Menon
Quoted 79 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Based on 4.0-rc1.

* From v4: [4]
- Extracted from the full series
- Rebased on 4.0-rc1

* From v3 [3]:
- Rebased on top of the patch working around hardcoded IRQ on OMAP4/5 [4]
- Fixed more iMX6 DTs (Stephan)
- Fixed Exynos4/5 DTs

* From v2 [2]:
- Addressed numerous comments from Thierry
- Merged bug fixes from Nishanth
- Merged bug fix from Stefan

* From v1 [1]:
- Rebased on 3.19-rc3
- Fixed a number of additional platforms
- Added crossbar conversion to stacked domains
- Merged bug fixes from Nishanth

[4]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/317531.html
[3]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/315385.html
[2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/314041.html
[1]: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/307338.html

Marc Zyngier (7):
genirq: Add irqchip_set_wake_parent
irqchip: crossbar: convert dra7 crossbar to stacked domains
DT: update ti,irq-crossbar binding
irqchip: GIC: get rid of routable domain
DT: arm,gic: kill arm,routable-irqs
DT: omap4/5: add binding for the wake-up generator
ARM: omap: convert wakeupgen to stacked domains

 Documentation/devicetree/bindings/arm/gic.txt      |   6 -
 .../devicetree/bindings/arm/omap/crossbar.txt      |  18 +-
 .../interrupt-controller/ti,omap4-wugen-mpu        |  33 ++++
 arch/arm/boot/dts/am4372.dtsi                      |  11 +-
 arch/arm/boot/dts/am437x-gp-evm.dts                |   1 -
 arch/arm/boot/dts/am437x-sk-evm.dts                |   1 -
 arch/arm/boot/dts/am43x-epos-evm.dts               |   1 -
 arch/arm/boot/dts/am57xx-beagle-x15.dts            |   3 +-
 arch/arm/boot/dts/dra7-evm.dts                     |   2 +-
 arch/arm/boot/dts/dra7.dtsi                        |  43 +++--
 arch/arm/boot/dts/dra72-evm.dts                    |   1 -
 arch/arm/boot/dts/dra72x.dtsi                      |   3 +-
 arch/arm/boot/dts/dra74x.dtsi                      |   5 +-
 arch/arm/boot/dts/omap4-duovero.dtsi               |   2 -
 arch/arm/boot/dts/omap4-panda-common.dtsi          |   8 +-
 arch/arm/boot/dts/omap4-sdp.dts                    |   8 +-
 arch/arm/boot/dts/omap4-var-som-om44.dtsi          |   2 -
 arch/arm/boot/dts/omap4.dtsi                       |  18 +-
 arch/arm/boot/dts/omap5-cm-t54.dts                 |   1 -
 arch/arm/boot/dts/omap5-uevm.dts                   |   2 -
 arch/arm/boot/dts/omap5.dtsi                       |  26 ++-
 arch/arm/mach-omap2/omap-wakeupgen.c               | 125 ++++++++++---
 arch/arm/mach-omap2/omap-wakeupgen.h               |   1 -
 arch/arm/mach-omap2/omap4-common.c                 |  21 +--
 drivers/irqchip/irq-crossbar.c                     | 207 ++++++++++++---------
Quoted 8 lines
 drivers/irqchip/irq-gic.c                          |  59 +-----
 include/linux/irq.h                                |   1 +
 include/linux/irqchip/arm-gic.h                    |   6 -
 include/linux/irqchip/irq-crossbar.h               |  11 --
 kernel/irq/chip.c                                  |  16 ++
 30 files changed, 364 insertions(+), 278 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
 delete mode 100644 include/linux/irqchip/irq-crossbar.h

marc-test-irq (Applied the series to v4.0-rc1) - boot logs:
1: am335x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469913
2: am335x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469914
3: am3517-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469915
4: am37x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469916
5: am437x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469917
6: am43xx-epos: BOOT: PASS: http://paste.ubuntu.org.cn/2469918
7: am43xx-gpevm: BOOT: PASS: http://paste.ubuntu.org.cn/2469919
8: BeagleBoard-XM: BOOT: PASS: http://paste.ubuntu.org.cn/2469920
9: beagleboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469928
10: beaglebone-black: BOOT: PASS: http://paste.ubuntu.org.cn/2469932

11:                     beaglebone: BOOT: PASS: http://paste.ubuntu.org.cn/2469936
12:                     craneboard: BOOT: PASS: http://paste.ubuntu.org.cn/2469941
13:                     dra72x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469945
14:                     dra7xx-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469946

15: OMAP3430-Labrador(LDP): BOOT: PASS: http://paste.ubuntu.org.cn/2469947
16: n900: BOOT: PASS: http://paste.ubuntu.org.cn/2469948
17: omap5-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469949
18: pandaboard-es: BOOT: PASS: http://paste.ubuntu.org.cn/2469950
19: pandaboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469951

Quoted 6 lines
20:                        sdp2430: BOOT: PASS: http://paste.ubuntu.org.cn/2469952
21:                        sdp3430: BOOT: PASS: http://paste.ubuntu.org.cn/2469953
22:                        sdp4430: BOOT: PASS: http://paste.ubuntu.org.cn/2469954

TOTAL = 22 boards, Booted Boards = 22, No Boot boards = 0

(also tested beagleboard-x15 which was not on farm: http://paste.ubuntu.org.cn/2470017 - looks good as well).

Noticed that I missed proper info about x15 here.. anyways..

http://paste.ubuntu.org.cn/2470017 was vanilla v4.0-rc1
http://pastebin.ubuntu.com/10377375/ is with this series applied on top.

Quoted 5 lines

Comparative boot logs for v4.0-rc1:
https://github.com/nmenon/kernel-test-logs/tree/v4.0-rc1

Will dig in detail a little later.. but nothing major stuck out to me.

Signature · 2 lines
Regards,
Nishanth Menon
#10 lore raw

v5 cover irqchip: Move OMAP{4, 5}/DRA7 to use stacked domains

Quoted 115 lines · Nishanth Menon
Quoted 114 lines · Nishanth Menon
Quoted 79 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Based on 4.0-rc1.

* From v4: [4]
- Extracted from the full series
- Rebased on 4.0-rc1

* From v3 [3]:
- Rebased on top of the patch working around hardcoded IRQ on OMAP4/5 [4]
- Fixed more iMX6 DTs (Stephan)
- Fixed Exynos4/5 DTs

* From v2 [2]:
- Addressed numerous comments from Thierry
- Merged bug fixes from Nishanth
- Merged bug fix from Stefan

* From v1 [1]:
- Rebased on 3.19-rc3
- Fixed a number of additional platforms
- Added crossbar conversion to stacked domains
- Merged bug fixes from Nishanth

[4]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/317531.html
[3]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/315385.html
[2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/314041.html
[1]: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/307338.html

Marc Zyngier (7):
genirq: Add irqchip_set_wake_parent
irqchip: crossbar: convert dra7 crossbar to stacked domains
DT: update ti,irq-crossbar binding
irqchip: GIC: get rid of routable domain
DT: arm,gic: kill arm,routable-irqs
DT: omap4/5: add binding for the wake-up generator
ARM: omap: convert wakeupgen to stacked domains

 Documentation/devicetree/bindings/arm/gic.txt      |   6 -
 .../devicetree/bindings/arm/omap/crossbar.txt      |  18 +-
 .../interrupt-controller/ti,omap4-wugen-mpu        |  33 ++++
 arch/arm/boot/dts/am4372.dtsi                      |  11 +-
 arch/arm/boot/dts/am437x-gp-evm.dts                |   1 -
 arch/arm/boot/dts/am437x-sk-evm.dts                |   1 -
 arch/arm/boot/dts/am43x-epos-evm.dts               |   1 -
 arch/arm/boot/dts/am57xx-beagle-x15.dts            |   3 +-
 arch/arm/boot/dts/dra7-evm.dts                     |   2 +-
 arch/arm/boot/dts/dra7.dtsi                        |  43 +++--
 arch/arm/boot/dts/dra72-evm.dts                    |   1 -
 arch/arm/boot/dts/dra72x.dtsi                      |   3 +-
 arch/arm/boot/dts/dra74x.dtsi                      |   5 +-
 arch/arm/boot/dts/omap4-duovero.dtsi               |   2 -
 arch/arm/boot/dts/omap4-panda-common.dtsi          |   8 +-
 arch/arm/boot/dts/omap4-sdp.dts                    |   8 +-
 arch/arm/boot/dts/omap4-var-som-om44.dtsi          |   2 -
 arch/arm/boot/dts/omap4.dtsi                       |  18 +-
 arch/arm/boot/dts/omap5-cm-t54.dts                 |   1 -
 arch/arm/boot/dts/omap5-uevm.dts                   |   2 -
 arch/arm/boot/dts/omap5.dtsi                       |  26 ++-
 arch/arm/mach-omap2/omap-wakeupgen.c               | 125 ++++++++++---
 arch/arm/mach-omap2/omap-wakeupgen.h               |   1 -
 arch/arm/mach-omap2/omap4-common.c                 |  21 +--
 drivers/irqchip/irq-crossbar.c                     | 207 ++++++++++++---------
Quoted 8 lines
 drivers/irqchip/irq-gic.c                          |  59 +-----
 include/linux/irq.h                                |   1 +
 include/linux/irqchip/arm-gic.h                    |   6 -
 include/linux/irqchip/irq-crossbar.h               |  11 --
 kernel/irq/chip.c                                  |  16 ++
 30 files changed, 364 insertions(+), 278 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
 delete mode 100644 include/linux/irqchip/irq-crossbar.h

marc-test-irq (Applied the series to v4.0-rc1) - boot logs:
1: am335x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469913
2: am335x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469914
3: am3517-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469915
4: am37x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469916
5: am437x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469917
6: am43xx-epos: BOOT: PASS: http://paste.ubuntu.org.cn/2469918
7: am43xx-gpevm: BOOT: PASS: http://paste.ubuntu.org.cn/2469919
8: BeagleBoard-XM: BOOT: PASS: http://paste.ubuntu.org.cn/2469920
9: beagleboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469928
10: beaglebone-black: BOOT: PASS: http://paste.ubuntu.org.cn/2469932

11:                     beaglebone: BOOT: PASS: http://paste.ubuntu.org.cn/2469936
12:                     craneboard: BOOT: PASS: http://paste.ubuntu.org.cn/2469941
13:                     dra72x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469945
14:                     dra7xx-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469946

15: OMAP3430-Labrador(LDP): BOOT: PASS: http://paste.ubuntu.org.cn/2469947
16: n900: BOOT: PASS: http://paste.ubuntu.org.cn/2469948
17: omap5-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469949
18: pandaboard-es: BOOT: PASS: http://paste.ubuntu.org.cn/2469950
19: pandaboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469951

20:                        sdp2430: BOOT: PASS: http://paste.ubuntu.org.cn/2469952
21:                        sdp3430: BOOT: PASS: http://paste.ubuntu.org.cn/2469953
22:                        sdp4430: BOOT: PASS: http://paste.ubuntu.org.cn/2469954

TOTAL = 22 boards, Booted Boards = 22, No Boot boards = 0

Quoted 11 lines
Quoted 1 line

(also tested beagleboard-x15 which was not on farm: http://paste.ubuntu.org.cn/2470017 - looks good as well).

Noticed that I missed proper info about x15 here.. anyways..

http://paste.ubuntu.org.cn/2470017 was vanilla v4.0-rc1
http://pastebin.ubuntu.com/10377375/ is with this series applied on top.

Quoted 5 lines

Comparative boot logs for v4.0-rc1:
https://github.com/nmenon/kernel-test-logs/tree/v4.0-rc1

Will dig in detail a little later.. but nothing major stuck out to me.

Excellent. Let me know if you spot anything. Can I otherwise add your "Tested-by:"?

Thanks,

	M.
Signature · 1 line
Jazz is not dead. It just smells funny...
#11 lore raw

v5 cover irqchip: Move OMAP{4, 5}/DRA7 to use stacked domains

Quoted 3 lines · Marc Zyngier
Quoted 2 lines · Nishanth Menon
Quoted 1 line · Nishanth Menon

On 17:44-20150223, Marc Zyngier wrote:

[...]

Quoted 35 lines
Quoted 35 lines
Quoted 23 lines
Quoted 2 lines
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
 delete mode 100644 include/linux/irqchip/irq-crossbar.h

marc-test-irq (Applied the series to v4.0-rc1) - boot logs:
1: am335x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469913
2: am335x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469914
3: am3517-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469915
4: am37x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469916
5: am437x-sk: BOOT: PASS: http://paste.ubuntu.org.cn/2469917
6: am43xx-epos: BOOT: PASS: http://paste.ubuntu.org.cn/2469918
7: am43xx-gpevm: BOOT: PASS: http://paste.ubuntu.org.cn/2469919
8: BeagleBoard-XM: BOOT: PASS: http://paste.ubuntu.org.cn/2469920
9: beagleboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469928
10: beaglebone-black: BOOT: PASS: http://paste.ubuntu.org.cn/2469932

11:                     beaglebone: BOOT: PASS: http://paste.ubuntu.org.cn/2469936
12:                     craneboard: BOOT: PASS: http://paste.ubuntu.org.cn/2469941
13:                     dra72x-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469945
14:                     dra7xx-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469946

15: OMAP3430-Labrador(LDP): BOOT: PASS: http://paste.ubuntu.org.cn/2469947
16: n900: BOOT: PASS: http://paste.ubuntu.org.cn/2469948
17: omap5-evm: BOOT: PASS: http://paste.ubuntu.org.cn/2469949
18: pandaboard-es: BOOT: PASS: http://paste.ubuntu.org.cn/2469950
19: pandaboard-vanilla: BOOT: PASS: http://paste.ubuntu.org.cn/2469951

Quoted 6 lines
20:                        sdp2430: BOOT: PASS: http://paste.ubuntu.org.cn/2469952
21:                        sdp3430: BOOT: PASS: http://paste.ubuntu.org.cn/2469953
22:                        sdp4430: BOOT: PASS: http://paste.ubuntu.org.cn/2469954

TOTAL = 22 boards, Booted Boards = 22, No Boot boards = 0

(also tested beagleboard-x15 which was not on farm: http://paste.ubuntu.org.cn/2470017 - looks good as well).

Noticed that I missed proper info about x15 here.. anyways..

http://paste.ubuntu.org.cn/2470017 was vanilla v4.0-rc1
http://pastebin.ubuntu.com/10377375/ is with this series applied on top.

Quoted 1 line
Quoted 7 lines
Quoted 4 lines
Quoted 4 lines

Comparative boot logs for v4.0-rc1:
https://github.com/nmenon/kernel-test-logs/tree/v4.0-rc1

Will dig in detail a little later.. but nothing major stuck out to me.

Excellent. Let me know if you spot anything. Can I otherwise add your "Tested-by:"?

Yes please. Sorry that I did not respond earlier.

Signature · 2 lines
Regards,
Nishanth Menon
maintainer
#12 lore raw

v5 cover irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

In reply to Marc Zyngier
Quoted 10 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

Quoted 7 lines

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Could we parse still the old binding and produce warning for the case when a new kernel is booted with the old DT? That would make it easier for people to debug what's going on.

Regards,

Tony

maintainer
#13 lore raw

v5 cover irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

Quoted 14 lines · Tony Lindgren
Quoted 13 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

Quoted 8 lines
Quoted 4 lines

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Could we parse still the old binding and produce warning for the case when a new kernel is booted with the old DT? That would make it easier for people to debug what's going on.

Other than that, this series seems to behave for me. Please feel free to add Acked-by: Tony Lindgren <[email protected]>. It Looks like this series should be applied into an immutable branch against v4.0-rc1 that I can pull in as needed to avoid merge conflicts with the dts files.

Regards,

Tony

A message that is not in the archive (sent off-list or not yet received): CAJydem=O0S0dKL6pOvm79bNYinDcFVhQE0qUW43Qhvfo7voqtA@mail.gmail.com

#15 lore raw

v5 cover irqchip: Move OMAP{4, 5}/DRA7 to use stacked domains

Quoted 7 lines · Subramaniam Chanderashekarapuram

Tested this on DRA7 for smp_affinity. Needs these minor fixes attached.

Note: I do not have a OMAP4/5 with me now. Hope to test that tomorrow.

Log for DRA7 are here:
http://pastebin.ubuntu.com/10382176/

Looks good to me. I've folded that into the existing series.

Thanks,

	M.
Signature · 1 line
Jazz is not dead. It just smells funny...
#16 lore raw

v5 cover irqchip: Move OMAP{4, 5}/DRA7 to use stacked domains

In reply to Tony Lindgren
Quoted 14 lines · Tony Lindgren
Quoted 13 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

Quoted 8 lines
Quoted 4 lines

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Could we parse still the old binding and produce warning for the case when a new kernel is booted with the old DT? That would make it easier for people to debug what's going on.

There's a number of strategies:
- Looking up the default, top-level interrupt controller:
if that's the GIC, scream.
- Lookup the crossbar:
if it exists, but is not an interrupt controller, scream as well.
- Lookup the WUGEN:
if it doesn't exist, scream again.

The last one is pretty easy to implement:

arch/arm/mach-omap2/omap4-common.c +6 -0
index fba1ba7..7bb116a 100644
@@ -277,6 +277,12 @@ void __init omap_gic_of_init(void)
 {
 	struct device_node *np;
 
+	intc_node = of_find_matching_node(NULL, intc_match);
+	if (WARN_ON(!intc_node)) {
+		pr_err("No WUGEN found in DT, system will misbehave.\n");
+		pr_err("UPDATE YOUR DEVICE TREE!\n");
+	}
+
 	/* Extract GIC distributor and TWD bases for OMAP4460 ROM Errata WA */
 	if (!cpu_is_omap446x())
 		goto skip_errata_init;

This should cover both OMAP4, OMAP5 and DRA7.

What do you think?

	M.
Signature · 1 line
Jazz is not dead. It just smells funny...
maintainer
#17 lore raw

v5 cover irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

Quoted 52 lines · Marc Zyngier
Quoted 14 lines · Tony Lindgren
Quoted 13 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

Quoted 8 lines
Quoted 4 lines

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Could we parse still the old binding and produce warning for the case when a new kernel is booted with the old DT? That would make it easier for people to debug what's going on.

There's a number of strategies:
- Looking up the default, top-level interrupt controller:
if that's the GIC, scream.
- Lookup the crossbar:
if it exists, but is not an interrupt controller, scream as well.
- Lookup the WUGEN:
if it doesn't exist, scream again.

The last one is pretty easy to implement:

arch/arm/mach-omap2/omap4-common.c +6 -0
index fba1ba7..7bb116a 100644
@@ -277,6 +277,12 @@ void __init omap_gic_of_init(void)
 {
 	struct device_node *np;
 
+	intc_node = of_find_matching_node(NULL, intc_match);
+	if (WARN_ON(!intc_node)) {
+		pr_err("No WUGEN found in DT, system will misbehave.\n");
+		pr_err("UPDATE YOUR DEVICE TREE!\n");
+	}
+
 	/* Extract GIC distributor and TWD bases for OMAP4460 ROM Errata WA */
 	if (!cpu_is_omap446x())
 		goto skip_errata_init;
Quoted 3 lines

This should cover both OMAP4, OMAP5 and DRA7.

What do you think?

This should do the job for the case of old dtb and people trying to suspend the device.

Thanks,

Tony

#18 lore raw

v5 cover irqchip: Move OMAP{4, 5}/DRA7 to use stacked domains

In reply to Marc Zyngier
Quoted 45 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Based on 4.0-rc1.

* From v4: [4]
- Extracted from the full series
- Rebased on 4.0-rc1

* From v3 [3]:
- Rebased on top of the patch working around hardcoded IRQ on OMAP4/5 [4]
- Fixed more iMX6 DTs (Stephan)
- Fixed Exynos4/5 DTs

* From v2 [2]:
- Addressed numerous comments from Thierry
- Merged bug fixes from Nishanth
- Merged bug fix from Stefan

* From v1 [1]:
- Rebased on 3.19-rc3
- Fixed a number of additional platforms
- Added crossbar conversion to stacked domains
- Merged bug fixes from Nishanth

[4]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/317531.html
[3]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/315385.html
[2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/314041.html
[1]: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/307338.html

Quoted 9 lines

Marc Zyngier (7):
genirq: Add irqchip_set_wake_parent
irqchip: crossbar: convert dra7 crossbar to stacked domains
DT: update ti,irq-crossbar binding
irqchip: GIC: get rid of routable domain
DT: arm,gic: kill arm,routable-irqs
DT: omap4/5: add binding for the wake-up generator
ARM: omap: convert wakeupgen to stacked domains