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/linux/tools/perf/pmu-events/arch/x86/amdzen4/
H A Ddata-fabric.json4 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 0.",
12 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 1.",
20 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 2.",
28 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 3.",
36 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 4.",
44 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 5.",
52 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 6.",
60 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 7.",
68 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 8.",
76 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 9.",
[all …]
/linux/drivers/firmware/tegra/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
8 IVC (Inter-VM Communication) protocol is part of the IPC
9 (Inter Processor Communication) framework on Tegra. It maintains the
20 BPMP (Boot and Power Management Processor) is designed to off-loading
/linux/Documentation/devicetree/bindings/powerpc/nintendo/
H A Dwii.txt11 - model : Should be "nintendo,wii"
12 - compatible : Should be "nintendo,wii"
16 This node represents the multi-function "Hollywood" chip, which packages
21 - compatible : Should be "nintendo,hollywood"
25 Represents the interface between the graphics processor and a external
30 - compatible : should be "nintendo,hollywood-vi","nintendo,flipper-vi"
31 - reg : should contain the VI registers location and length
32 - interrupts : should contain the VI interrupt
34 1.b) The Processor Interface (PI) node
36 Represents the data and control interface between the main processor
[all …]
/linux/Documentation/devicetree/bindings/interrupt-controller/
H A Dandestech,plicsw.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/andestech,plicsw.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Andes machine-level software interrupt controller
12 controller (PLIC_SW). PLIC_SW directly connects to the machine-mode
13 inter-processor interrupt lines of CPUs, so RISC-V per-CPU local interrupt
15 generate machine-mode inter-processor interrupts through programming its
19 - Ben Zong-You Xie <ben717@andestech.com>
24 - enum:
[all …]
H A Dmarvell,mpic.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/marvell,mpic.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marek Behún <kabel@kernel.org>
13 The top-level interrupt controller on Marvell Armada 370 and XP. On these
14 platforms it also provides inter-processor interrupts.
26 - description: main registers
27 - description: per-cpu registers
31 - description: |
[all …]
/linux/Documentation/devicetree/bindings/mailbox/
H A Dqcom-ipcc.yaml1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/mailbox/qcom-ipcc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm Technologies, Inc. Inter-Processor Communication Controller
10 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
13 The Inter-Processor Communication Controller (IPCC) is a centralized hardware
14 to route interrupts across various subsystems. It involves a three-level
16 entity on the Application Processor Subsystem (APSS) that wants to listen to
18 a case, the client would be Modem (client-id is 2) and the signal would be
[all …]
H A Dmtk,adsp-mbox.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mailbox/mtk,adsp-mbox.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
13 The MTK ADSP mailbox Inter-Processor Communication (IPC) enables the SoC
15 The MTK ADSP mailbox IPC also provides the ability for one processor to
16 signal the other processor using interrupts.
21 - enum:
22 - mediatek,mt8186-adsp-mbox
[all …]
H A Daspeed,ast2700-mailbox.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mailbox/aspeed,ast2700-mailbox.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jammy Huang <jammy_huang@aspeedtech.com>
15 messages to each other. It is a hardware-based inter-processor communication
19 The mailbox's tx/rx are independent, meaning that one processor can send a
20 message while another processor is receiving a message simultaneously.
31 const: aspeed,ast2700-mailbox
35 - description: TX control register
[all …]
H A Dxlnx,zynqmp-ipi-mailbox.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mailbox/xlnx,zynqmp-ipi-mailbox.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Xilinx IPI(Inter Processor Interrupt) mailbox controller
10 The Xilinx IPI(Inter Processor Interrupt) mailbox controller is to manage
14 +-------------------------------------+
16 +-------------------------------------+
17 +--------------------------------------------------+
18 TF-A | |
[all …]
/linux/sound/soc/intel/avs/
H A Dregisters.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright(c) 2021-2022 Intel Corporation
12 #include <linux/io-64-nonatomic-lo-hi.h>
45 /* SKL Intel HD Audio Inter-Processor Communication Registers */
57 /* CNL Intel HD Audio Inter-Processor Communication Registers */
72 /* MTL Intel HOST Inter-Processor Communication Registers */
115 #define AVS_FW_REG_BASE(adev) ((adev)->spec->hipc->sts_offset)
122 /* DSP -> HOST communication window */
124 /* HOST -> DSP communication window */
130 ((adev)->spec->sram->base_offset + \
[all …]
/linux/Documentation/devicetree/bindings/timer/
H A Dsifive,clint.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Palmer Dabbelt <palmer@dabbelt.com>
11 - Anup Patel <anup.patel@wdc.com>
14 SiFive (and other RISC-V) SOCs include an implementation of the SiFive
15 Core Local Interruptor (CLINT) for M-mode timer and M-mode inter-processor
16 interrupts. It directly connects to the timer and inter-processor interrupt
17 lines of various HARTs (or CPUs) so RISC-V per-HART (or per-CPU) local
19 The clock frequency of CLINT is specified via "timebase-frequency" DT
[all …]
/linux/arch/arc/kernel/
H A Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
6 * -- Added support for Inter Processor Interrupts
9 * -- Initial Write (Borrowed heavily from ARM)
29 #include <asm/processor.h>
49 return -EINVAL; in arc_get_cpu_map()
52 return -EINVAL; in arc_get_cpu_map()
59 * "possible-cpus" property in DeviceTree pretend all [0..NR_CPUS-1] exist.
65 if (arc_get_cpu_map("possible-cpus", &cpumask)) { in arc_init_cpu_possible()
66 pr_warn("Failed to get possible-cpus from dtb, pretending all %u cpus exist\n", in arc_init_cpu_possible()
[all …]
/linux/Documentation/translations/zh_TW/arch/loongarch/
H A Dirq-chip-model.rst1 .. SPDX-License-Identifier: GPL-2.0
3 .. include:: ../../disclaimer-zh_TW.rst
5 :Original: Documentation/arch/loongarch/irq-chip-model.rst
15 HTVECINTC（Hyper-Transport Vector Interrupt Controller）、PCH-PIC（LS7A芯片組的主中
16 斷控制器）、PCH-LPC（LS7A芯片組的LPC中斷控制器）和PCH-MSI（MSI中斷控制器）。
19 全局中斷控制器（每個芯片一個，所有核共享），而PCH-PIC/PCH-LPC/PCH-MSI是CPU外部的中
26 在這種模型裏面，IPI（Inter-Processor Interrupt）和CPU本地時鐘中斷直接發送到CPUINTC，
27 CPU串口（UARTs）中斷髮送到LIOINTC，而其他所有設備的中斷則分別發送到所連接的PCH-PIC/
28 PCH-LPC/PCH-MSI，然後被HTVECINTC統一收集，再發送到LIOINTC，最後到達CPUINTC::
30 +-----+ +---------+ +-------+
[all …]
/linux/drivers/media/platform/mediatek/vcodec/encoder/
H A Dvenc_vpu_if.h1 /* SPDX-License-Identifier: GPL-2.0 */
13 * struct venc_vpu_inst - encoder VPU driver instance
23 * @id: the id of inter-processor interrupt
H A Dvenc_ipi_msg.h1 /* SPDX-License-Identifier: GPL-2.0 */
16 * enum venc_ipi_msg_id - message id between AP and VPU
17 * (ipi stands for inter-processor interrupt)
34 * struct venc_ap_ipi_msg_init - AP to VPU init cmd structure
49 * struct venc_ap_ipi_msg_set_param - AP to VPU set_param cmd structure
71 * struct venc_ap_ipi_msg_enc - AP to VPU enc cmd structure
91 * struct venc_ap_ipi_msg_enc_ext - AP to SCP extended enc cmd structure
104 * struct venc_ap_ipi_msg_enc_ext_34 - AP to SCP extended enc cmd structure
128 * struct venc_ap_ipi_msg_deinit - AP to VPU deinit cmd structure
139 * enum venc_ipi_msg_status - VPU ack AP cmd status
[all …]
/linux/arch/mips/kernel/
H A Dsmp-up.c6 * Copyright (C) 2006, 07 by Ralf Baechle (ralf@linux-mips.org)
14 * Send inter-processor interrupt
58 return -ENOSYS; in up_cpu_disable()
/linux/Documentation/virt/kvm/devices/
H A Dxics.rst1 .. SPDX-License-Identifier: GPL-2.0
25 -EINVAL Value greater than KVM_MAX_VCPU_IDS.
26 -EFAULT Invalid user pointer for attr->addr.
27 -EBUSY A vcpu is already connected to the device.
32 sources, each identified by a 20-bit source number, and a set of
43 least-significant end of the word:
50 * Pending IPI (inter-processor interrupt) priority, 8 bits
56 * Current processor priority, 8 bits
64 bitfields, starting from the least-significant end of the word:
79 This bit is 1 for a level-sensitive interrupt source, or 0 for
[all …]
/linux/drivers/media/platform/mediatek/vpu/
H A Dmtk_vpu.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Author: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
15 * VPU (video processor unit) is a tiny processor controlling video hardware
25 * enum ipi_id - the id of inter-processor interrupt
67 * enum rst_id - reset id to register reset function for VPU watchdog timeout
82 * vpu_ipi_register - register an ipi function
98 * vpu_ipi_send - send data from AP to vpu.
105 * This function is thread-safe. When this function returns,
117 * vpu_get_plat_device - get VPU's platform device
128 * vpu_wdt_reg_handler - register a VPU watchdog handler
[all …]
/linux/Documentation/devicetree/bindings/media/
H A Dmediatek,mdp3-rdma.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/mediatek,mdp3-rdma.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Matthias Brugger <matthias.bgg@gmail.com>
11 - Moudy Ho <moudy.ho@mediatek.com>
24 - enum:
25 - mediatek,mt8183-mdp3-rdma
26 - mediatek,mt8188-mdp3-rdma
27 - mediatek,mt8195-mdp3-rdma
[all …]
/linux/Documentation/userspace-api/media/
H A Dglossary.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
52 **Digital Signal Processor**
58 **Field-programmable Gate Array**
63 See https://en.wikipedia.org/wiki/Field-programmable_gate_array.
72 together make a larger user-facing functional peripheral. For
80 **Inter-Integrated Circuit**
82 A multi-master, multi-slave, packet switched, single-ended,
84 like sub-device hardware components.
86 See http://www.nxp.com/docs/en/user-guide/UM10204.pdf.
108 **Image Signal Processor**
[all …]
/linux/drivers/media/platform/verisilicon/
H A Dhantro_hw.h1 /* SPDX-License-Identifier: GPL-2.0 */
13 #include <linux/v4l2-controls.h>
14 #include <media/v4l2-ctrls.h>
15 #include <media/v4l2-vp9.h>
16 #include <media/videobuf2-core.h>
58 * struct hantro_aux_buf - auxiliary DMA buffer for hardware data
110 * @dpb_longterm: DPB long-term
195 * @reference_mode: inter prediction type
197 * @interpolation_filter: filter selection for inter prediction
229 * @tile_r_info: per-tile information array
[all …]
/linux/drivers/firmware/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
4 # see Documentation/kbuild/kconfig-language.rst.
18 Cores(AP) and the System Control Processor(SCP). The MHU peripheral
19 provides a mechanism for inter-processor communication between SCP
61 bool "Add firmware-provided memory map to sysfs" if EXPERT
64 Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
68 See also Documentation/ABI/testing/sysfs-firmware-memmap.
77 DMI-based module auto-loading.
192 bootloader or kernel can show basic video-output during boot for
193 user-guidance and debugging. Historically, x86 used the VESA BIOS
[all …]
/linux/arch/parisc/kernel/
H A Dsmp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 ** Copyright (C) 1999 David Mosberger-Tang <davidm@hpl.hp.com>
7 ** Copyright (C) 2001,2004 Grant Grundler <grundler@parisc-linux.org>
13 ** -grant (1/12/2001)
44 #include <asm/processor.h>
79 /********** SMP inter processor interrupt and communication routines */
130 ops = p->pending_ipi; in ipi_interrupt()
131 p->pending_ipi = 0; in ipi_interrupt()
204 p->pending_ipi |= 1 << op; in ipi_send()
205 gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa); in ipi_send()
[all …]
/linux/drivers/xen/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
32 2) control domain: xl mem-max <target-domain> <maxmem>
35 3) control domain: xl mem-set <target-domain> <memory>
51 …SUBSYSTEM=="memory", ACTION=="add", RUN+="/bin/sh -c '[ -f /sys$devpath/state ] && echo online > /…
146 bool "Add support for dma-buf grant access device driver extension"
151 dma-buf implementation. With this extension grant references to
152 the pages of an imported dma-buf can be exported for other domain
154 converted into a local dma-buf for local export.
157 tristate "User-space grant reference allocator driver"
163 or as part of an inter-domain shared memory channel.
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/linux/drivers/net/ethernet/intel/libeth/
H A Dxsk.c1 // SPDX-License-Identifier: GPL-2.0-only
30 * libeth_xsk_buff_free_slow - free an XSk Rx buffer
38 xsk_buff_free(&xdp->base); in libeth_xsk_buff_free_slow()
43 * libeth_xsk_buff_add_frag - add frag to XSk Rx buffer
56 if (!xsk_buff_add_frag(&head->base, &xdp->base)) in libeth_xsk_buff_add_frag()
70 * libeth_xsk_buff_stats_frags - update onstack RQ stats with XSk frags info
85 * __libeth_xsk_run_prog_slow - process the non-``XDP_REDIRECT`` verdicts
93 * it is processed inline. The rest goes here for out-of-line processing,
104 xsk_buff_free(&xdp->base); in __libeth_xsk_run_prog_slow()
120 * libeth_xsk_prog_exception - handle XDP prog exceptions on XSk
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