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/linux-6.12.1/Documentation/devicetree/bindings/interrupt-controller/
Dal,alpine-msix.txt3 See arm,gic-v3.txt for SPI and MSI definitions.
7 - compatible: should be "al,alpine-msix"
8 - reg: physical base address and size of the registers
9 - interrupt-controller: identifies the node as an interrupt controller
10 - msi-controller: identifies the node as an PCI Message Signaled Interrupt
12 - al,msi-base-spi: SPI base of the MSI frame
13 - al,msi-num-spis: number of SPIs assigned to the MSI frame, relative to SPI0
18 compatible = "al,alpine-msix";
20 interrupt-parent = <&gic>;
21 interrupt-controller;
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Darm,gic.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/arm,gic.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marc Zyngier <marc.zyngier@arm.com>
22 - $ref: /schemas/interrupt-controller.yaml#
27 - items:
28 - enum:
29 - arm,arm11mp-gic
30 - arm,cortex-a15-gic
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/linux-6.12.1/arch/arm64/boot/dts/broadcom/northstar2/
Dns2.dtsi35 #include <dt-bindings/interrupt-controller/arm-gic.h>
36 #include <dt-bindings/clock/bcm-ns2.h>
40 interrupt-parent = <&gic>;
41 #address-cells = <2>;
42 #size-cells = <2>;
45 #address-cells = <2>;
46 #size-cells = <0>;
50 compatible = "arm,cortex-a57";
52 enable-method = "psci";
53 next-level-cache = <&CLUSTER0_L2>;
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/linux-6.12.1/drivers/irqchip/
Dirq-gic-v2m.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * ARM GIC v2m MSI(-X) support
21 #include <linux/msi.h>
26 #include <linux/irqchip/arm-gic.h>
27 #include <linux/irqchip/arm-gic-common.h>
29 #include "irq-msi-lib.h"
34 * [25:16] lowest SPI assigned to MSI
36 * [9:0] Numer of SPIs assigned to MSI
52 /* APM X-Gene with GICv2m MSI_IIDR register value */
71 u32 nr_spis; /* The number of SPIs for MSIs */
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Dirq-alpine-msi.c6 * Antoine Tenart <antoine.tenart@free-electrons.com>
16 #include <linux/irqchip/arm-gic.h>
17 #include <linux/msi.h>
26 #include <asm/msi.h>
63 spin_lock(&priv->msi_map_lock); in alpine_msix_allocate_sgi()
65 first = bitmap_find_next_zero_area(priv->msi_map, priv->num_spis, 0, in alpine_msix_allocate_sgi()
67 if (first >= priv->num_spis) { in alpine_msix_allocate_sgi()
68 spin_unlock(&priv->msi_map_lock); in alpine_msix_allocate_sgi()
69 return -ENOSPC; in alpine_msix_allocate_sgi()
72 bitmap_set(priv->msi_map, first, num_req); in alpine_msix_allocate_sgi()
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/linux-6.12.1/arch/arm64/boot/dts/marvell/
Darmada-ap80x.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 #include <dt-bindings/interrupt-controller/arm-gic.h>
9 #include <dt-bindings/thermal/thermal.h>
11 /dts-v1/;
14 #address-cells = <2>;
15 #size-cells = <2>;
25 compatible = "arm,psci-0.2";
29 reserved-memory {
30 #address-cells = <2>;
31 #size-cells = <2>;
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/linux-6.12.1/arch/arm/boot/dts/amazon/
Dalpine.dtsi27 #include <dt-bindings/interrupt-controller/arm-gic.h>
30 #address-cells = <2>;
31 #size-cells = <2>;
42 #address-cells = <1>;
43 #size-cells = <0>;
44 enable-method = "al,alpine-smp";
47 compatible = "arm,cortex-a15";
50 clock-frequency = <1700000000>;
54 compatible = "arm,cortex-a15";
57 clock-frequency = <1700000000>;
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/linux-6.12.1/arch/arm64/boot/dts/amazon/
Dalpine-v2.dtsi4 * Antoine Tenart <antoine.tenart@free-electrons.com>
16 * - Redistributions of source code must retain the above
20 * - Redistributions in binary form must reproduce the above
35 /dts-v1/;
37 #include <dt-bindings/interrupt-controller/arm-gic.h>
41 compatible = "al,alpine-v2";
42 interrupt-parent = <&gic>;
43 #address-cells = <2>;
44 #size-cells = <2>;
47 #address-cells = <2>;
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Dalpine-v3.dtsi1 // SPDX-License-Identifier: GPL-2.0
6 /dts-v1/;
8 #include <dt-bindings/interrupt-controller/arm-gic.h>
12 compatible = "amazon,al-alpine-v3";
14 interrupt-parent = <&gic>;
16 #address-cells = <2>;
17 #size-cells = <2>;
20 #address-cells = <1>;
21 #size-cells = <0>;
25 compatible = "arm,cortex-a72";
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