| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/pci/ |
| D | pci-msi.txt | 2 relationship between PCI devices and MSI controllers.
18 Requester ID. A mechanism is required to associate a device with both the MSI
22 For generic MSI bindings, see
23 Documentation/devicetree/bindings/interrupt-controller/msi.txt.
30 -------------------
32 - msi-map: Maps a Requester ID to an MSI controller and associated
33 msi-specifier data. The property is an arbitrary number of tuples of
34 (rid-base,msi-controller,msi-base,length), where:
36 * rid-base is a single cell describing the first RID matched by the entry.
38 * msi-controller is a single phandle to an MSI controller
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| D | brcm,iproc-pcie.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/brcm,iproc-pcie.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Ray Jui <ray.jui@broadcom.com>
11 - Scott Branden <scott.branden@broadcom.com>
14 - $ref: /schemas/pci/pci-bus.yaml#
19 - enum:
22 - brcm,iproc-pcie
23 # for the second generation of PAXB-based controllers, used in
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| D | xilinx-versal-cpm.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/xilinx-versal-cpm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Bharat Kumar Gogada <bharat.kumar.gogada@amd.com>
13 - $ref: /schemas/pci/pci-bus.yaml#
18 - xlnx,versal-cpm-host-1.00
19 - xlnx,versal-cpm5-host
23 - description: CPM system level control and status registers.
24 - description: Configuration space region and bridge registers.
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| D | microchip,pcie-host.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/microchip,pcie-host.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Daire McNamara <daire.mcnamara@microchip.com>
13 - $ref: /schemas/pci/pci-bus.yaml#
14 - $ref: /schemas/interrupt-controller/msi-controller.yaml#
18 const: microchip,pcie-host-1.0 # PolarFire
23 reg-names:
25 - const: cfg
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| D | xlnx,nwl-pcie.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/xlnx,nwl-pcie.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thippeswamy Havalige <thippeswamy.havalige@amd.com>
13 - $ref: /schemas/pci/pci-bus.yaml#
14 - $ref: /schemas/interrupt-controller/msi-controller.yaml#
18 const: xlnx,nwl-pcie-2.11
22 - description: PCIe bridge registers location.
23 - description: PCIe Controller registers location.
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| D | aardvark-pci.txt | 8 - compatible: Should be "marvell,armada-3700-pcie"
9 - reg: range of registers for the PCIe controller
10 - interrupts: the interrupt line of the PCIe controller
11 - #address-cells: set to <3>
12 - #size-cells: set to <2>
13 - device_type: set to "pci"
14 - ranges: ranges for the PCI memory and I/O regions
15 - #interrupt-cells: set to <1>
16 - msi-controller: indicates that the PCIe controller can itself
17 handle MSI interrupts
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| D | brcm,stb-pcie.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
15 - enum:
16 - brcm,bcm2711-pcie # The Raspberry Pi 4
17 - brcm,bcm4908-pcie
18 - brcm,bcm7211-pcie # Broadcom STB version of RPi4
19 - brcm,bcm7278-pcie # Broadcom 7278 Arm
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| D | apple,pcie.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Mark Kettenis <kettenis@openbsd.org>
22 the standard "reset-gpios" and "max-link-speed" properties appear on
34 - enum:
35 - apple,t8103-pcie
36 - apple,t8112-pcie
37 - apple,t6000-pcie
38 - const: apple,pcie
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| D | xgene-pci-msi.txt | 1 * AppliedMicro X-Gene v1 PCIe MSI controller
5 - compatible: should be "apm,xgene1-msi" to identify
6 X-Gene v1 PCIe MSI controller block.
7 - msi-controller: indicates that this is an X-Gene v1 PCIe MSI controller node
8 - reg: physical base address (0x79000000) and length (0x900000) for controller
9 registers. These registers include the MSI termination address and data
10 registers as well as the MSI interrupt status registers.
11 - reg-names: not required
12 - interrupts: A list of 16 interrupt outputs of the controller, starting from
14 - interrupt-names: not required
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/pci/ |
| D | pci-msi.txt | 2 relationship between PCI devices and MSI controllers.
18 Requester ID. A mechanism is required to associate a device with both the MSI
22 For generic MSI bindings, see
23 Documentation/devicetree/bindings/interrupt-controller/msi.txt.
30 -------------------
32 - msi-map: Maps a Requester ID to an MSI controller and associated
33 msi-specifier data. The property is an arbitrary number of tuples of
34 (rid-base,msi-controller,msi-base,length), where:
36 * rid-base is a single cell describing the first RID matched by the entry.
38 * msi-controller is a single phandle to an MSI controller
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| D | brcm,iproc-pcie.txt | 4 - compatible:
5 "brcm,iproc-pcie" for the first generation of PAXB based controller,
7 "brcm,iproc-pcie-paxb-v2" for the second generation of PAXB-based
9 "brcm,iproc-pcie-paxc" for the first generation of PAXC based
11 "brcm,iproc-pcie-paxc-v2" for the second generation of PAXC based
13 PAXB-based root complex is used for external endpoint devices. PAXC-based
15 - reg: base address and length of the PCIe controller I/O register space
16 - #interrupt-cells: set to <1>
17 - interrupt-map-mask and interrupt-map, standard PCI properties to define the
19 - linux,pci-domain: PCI domain ID. Should be unique for each host controller
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| D | brcm,stb-pcie.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
15 - enum:
16 - brcm,bcm2711-pcie # The Raspberry Pi 4
17 - brcm,bcm7211-pcie # Broadcom STB version of RPi4
18 - brcm,bcm7278-pcie # Broadcom 7278 Arm
19 - brcm,bcm7216-pcie # Broadcom 7216 Arm
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| D | xilinx-versal-cpm.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/xilinx-versal-cpm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
13 - $ref: /schemas/pci/pci-bus.yaml#
17 const: xlnx,versal-cpm-host-1.00
21 - description: Configuration space region and bridge registers.
22 - description: CPM system level control and status registers.
24 reg-names:
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| D | aardvark-pci.txt | 8 - compatible: Should be "marvell,armada-3700-pcie"
9 - reg: range of registers for the PCIe controller
10 - interrupts: the interrupt line of the PCIe controller
11 - #address-cells: set to <3>
12 - #size-cells: set to <2>
13 - device_type: set to "pci"
14 - ranges: ranges for the PCI memory and I/O regions
15 - #interrupt-cells: set to <1>
16 - msi-controller: indicates that the PCIe controller can itself
17 handle MSI interrupts
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| D | xilinx-nwl-pcie.txt | 4 - compatible: Should contain "xlnx,nwl-pcie-2.11"
5 - #address-cells: Address representation for root ports, set to <3>
6 - #size-cells: Size representation for root ports, set to <2>
7 - #interrupt-cells: specifies the number of cells needed to encode an
9 - reg: Should contain Bridge, PCIe Controller registers location,
11 - reg-names: Must include the following entries:
15 - device_type: must be "pci"
16 - interrupts: Should contain NWL PCIe interrupt
17 - interrupt-names: Must include the following entries:
18 "msi1, msi0": interrupt asserted when an MSI is received
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| D | xgene-pci-msi.txt | 1 * AppliedMicro X-Gene v1 PCIe MSI controller
5 - compatible: should be "apm,xgene1-msi" to identify
6 X-Gene v1 PCIe MSI controller block.
7 - msi-controller: indicates that this is an X-Gene v1 PCIe MSI controller node
8 - reg: physical base address (0x79000000) and length (0x900000) for controller
9 registers. These registers include the MSI termination address and data
10 registers as well as the MSI interrupt status registers.
11 - reg-names: not required
12 - interrupts: A list of 16 interrupt outputs of the controller, starting from
14 - interrupt-names: not required
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| /kernel/linux/linux-6.6/drivers/pci/msi/ |
| D | api.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * PCI MSI/MSI-X — Exported APIs for device drivers
5 * Copyright (C) 2003-2004 Intel
14 #include "msi.h"
17 * pci_enable_msi() - Enable MSI interrupt mode on device
20 * Legacy device driver API to enable MSI interrupts mode on device and
22 * Linux IRQ will be saved at @dev->irq. The driver must invoke
40 * pci_disable_msi() - Disable MSI interrupt mode on device
43 * Legacy device driver API to disable MSI interrupt mode on device,
45 * The PCI device Linux IRQ (@dev->irq) is restored to its default
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/misc/ |
| D | fsl,qoriq-mc.txt | 3 The Freescale Management Complex (fsl-mc) is a hardware resource
5 network-oriented packet processing applications. After the fsl-mc
12 For an overview of the DPAA2 architecture and fsl-mc bus see:
16 same hardware "isolation context" and a 10-bit value called an ICID
21 between ICIDs and IOMMUs, so an iommu-map property is used to define
22 the set of possible ICIDs under a root DPRC and how they map to
28 For arm-smmu binding, see:
31 The MSI writes are accompanied by sideband data which is derived from the ICID.
32 The msi-map property is used to associate the devices with both the ITS
35 For generic MSI bindings, see
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/misc/ |
| D | fsl,qoriq-mc.txt | 3 The Freescale Management Complex (fsl-mc) is a hardware resource
5 network-oriented packet processing applications. After the fsl-mc
12 For an overview of the DPAA2 architecture and fsl-mc bus see:
16 same hardware "isolation context" and a 10-bit value called an ICID
21 between ICIDs and IOMMUs, so an iommu-map property is used to define
22 the set of possible ICIDs under a root DPRC and how they map to
28 For arm-smmu binding, see:
31 The MSI writes are accompanied by sideband data which is derived from the ICID.
32 The msi-map property is used to associate the devices with both the ITS
35 For generic MSI bindings, see
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/bus/ |
| D | xlnx,versal-net-cdx.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/bus/xlnx,versal-net-cdx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
15 on run-time.
18 and a unique device ID (for MSI) corresponding to a requestor ID
20 are used to configure SMMU and GIC-ITS respectively.
22 iommu-map property is used to define the set of stream ids
25 The MSI writes are accompanied by sideband data (Device ID).
26 The msi-map property is used to associate the devices with the
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| /kernel/linux/linux-5.10/drivers/of/ |
| D | irq.c | 1 // SPDX-License-Identifier: GPL-2.0+
6 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
8 * Copyright (C) 1996-2001 Cort Dougan
29 * irq_of_parse_and_map - Parse and map an interrupt into linux virq space
31 * @index: Index of the interrupt to map
48 * of_irq_find_parent - Given a device node, find its interrupt parent node
63 if (of_property_read_u32(child, "interrupt-parent", &parent)) { in of_irq_find_parent()
73 } while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL); in of_irq_find_parent()
80 * of_irq_parse_raw - Low level interrupt tree parsing
84 * This function is a low-level interrupt tree walking function. It
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| /kernel/linux/linux-6.6/drivers/of/ |
| D | irq.c | 1 // SPDX-License-Identifier: GPL-2.0+
6 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
8 * Copyright (C) 1996-2001 Cort Dougan
29 * irq_of_parse_and_map - Parse and map an interrupt into linux virq space
31 * @index: Index of the interrupt to map
48 * of_irq_find_parent - Given a device node, find its interrupt parent node
63 if (of_property_read_u32(child, "interrupt-parent", &parent)) { in of_irq_find_parent()
73 } while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL); in of_irq_find_parent()
80 * These interrupt controllers abuse interrupt-map for unspeakable
89 "CBEA,platform-spider-pic",
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| /kernel/linux/linux-6.6/drivers/net/ethernet/intel/ice/ |
| D | ice_irq.c | 1 // SPDX-License-Identifier: GPL-2.0
9 * ice_init_irq_tracker - initialize interrupt tracker
18 pf->irq_tracker.num_entries = max_vectors; in ice_init_irq_tracker()
19 pf->irq_tracker.num_static = num_static; in ice_init_irq_tracker()
20 xa_init_flags(&pf->irq_tracker.entries, XA_FLAGS_ALLOC); in ice_init_irq_tracker()
24 * ice_deinit_irq_tracker - free xarray tracker
29 xa_destroy(&pf->irq_tracker.entries); in ice_deinit_irq_tracker()
33 * ice_free_irq_res - free a block of resources
41 entry = xa_erase(&pf->irq_tracker.entries, index); in ice_free_irq_res()
46 * ice_get_irq_res - get an interrupt resource
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| /kernel/linux/linux-5.10/virt/kvm/ |
| D | irqchip.c | 1 // SPDX-License-Identifier: GPL-2.0-only
29 irq_rt = srcu_dereference_check(kvm->irq_routing, &kvm->irq_srcu, in kvm_irq_map_gsi()
30 lockdep_is_held(&kvm->irq_lock)); in kvm_irq_map_gsi()
31 if (irq_rt && gsi < irq_rt->nr_rt_entries) { in kvm_irq_map_gsi()
32 hlist_for_each_entry(e, &irq_rt->map[gsi], link) { in kvm_irq_map_gsi()
45 irq_rt = srcu_dereference(kvm->irq_routing, &kvm->irq_srcu); in kvm_irq_map_chip_pin()
46 return irq_rt->chip[irqchip][pin]; in kvm_irq_map_chip_pin()
49 int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi) in kvm_send_userspace_msi() argument
53 if (!irqchip_in_kernel(kvm) || (msi->flags & ~KVM_MSI_VALID_DEVID)) in kvm_send_userspace_msi()
54 return -EINVAL; in kvm_send_userspace_msi()
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| /kernel/linux/linux-6.6/virt/kvm/ |
| D | irqchip.c | 1 // SPDX-License-Identifier: GPL-2.0-only
28 irq_rt = srcu_dereference_check(kvm->irq_routing, &kvm->irq_srcu, in kvm_irq_map_gsi()
29 lockdep_is_held(&kvm->irq_lock)); in kvm_irq_map_gsi()
30 if (irq_rt && gsi < irq_rt->nr_rt_entries) { in kvm_irq_map_gsi()
31 hlist_for_each_entry(e, &irq_rt->map[gsi], link) { in kvm_irq_map_gsi()
44 irq_rt = srcu_dereference(kvm->irq_routing, &kvm->irq_srcu); in kvm_irq_map_chip_pin()
45 return irq_rt->chip[irqchip][pin]; in kvm_irq_map_chip_pin()
48 int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi) in kvm_send_userspace_msi() argument
52 if (!kvm_arch_irqchip_in_kernel(kvm) || (msi->flags & ~KVM_MSI_VALID_DEVID)) in kvm_send_userspace_msi()
53 return -EINVAL; in kvm_send_userspace_msi()
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