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/linux/arch/arm64/boot/dts/ti/
H A Dk3-j784s4-evm-pcie0-pcie1-ep.dtso1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
8 * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
11 /dts-v1/;
14 #include <dt-bindings/interrupt-controller/arm-gic.h>
15 #include <dt-bindings/soc/ti,sci_pm_domain.h>
17 #include "k3-pinctrl.h"
32 #address-cells = <2>;
33 #size-cells = <2>;
34 interrupt-parent = <&gic500>;
36 pcie0_ep: pcie-ep@2900000 {
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H A Dk3-j721s2-evm-pcie1-ep.dtso1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
8 * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
11 /dts-v1/;
14 #include <dt-bindings/interrupt-controller/arm-gic.h>
15 #include <dt-bindings/soc/ti,sci_pm_domain.h>
17 #include "k3-pinctrl.h"
28 #address-cells = <2>;
29 #size-cells = <2>;
30 interrupt-parent = <&gic500>;
32 pcie1_ep: pcie-ep@2910000 {
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H A Dk3-j721e-evm-pcie0-ep.dtso1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
8 * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
11 /dts-v1/;
14 #include <dt-bindings/interrupt-controller/arm-gic.h>
15 #include <dt-bindings/soc/ti,sci_pm_domain.h>
17 #include "k3-pinctrl.h"
28 #address-cells = <2>;
29 #size-cells = <2>;
30 interrupt-parent = <&gic500>;
32 pcie0_ep: pcie-ep@2900000 {
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/linux/Documentation/devicetree/bindings/pci/
H A Dpci-ep.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pci/pci-ep.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
13 - Kishon Vijay Abraham I <kishon@kernel.org>
14 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
18 pattern: "^pcie-ep@"
20 max-functions:
21 description: Maximum number of functions that can be configured
27 max-virtual-functions:
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H A Dsnps,dw-pcie-ep.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/pci/snps,dw-pcie-ep.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jingoo Han <jingoohan1@gmail.com>
11 - Gustavo Pimentel <gustavo.pimentel@synopsys.com>
16 # Please create a separate DT-schema for your DWC PCIe Endpoint controller
17 # and make sure it's assigned with the vendor-specific compatible string.
21 const: snps,dw-pcie-ep
23 - compatible
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/linux/Documentation/misc-devices/
H A Dmrvl_cn10k_dpi.rst1 .. SPDX-License-Identifier: GPL-2.0
11 DPI hardware comprises a physical function (PF), its virtual functions,
15 requests from its VF functions and provisions DMA engine resources to
16 it's VF functions.
21 /dev/mrvl-cn10k-dpi node to set DMA engine and PEM (PCIe interface) port
37 ioctl that sets max payload size & max read request size parameters of
42 ioctl that sets DMA engine's fifo sizes & max outstanding load request
49 vfio-pci driver. Below is a sample dpi dma application to demonstrate on
52 https://github.com/MarvellEmbeddedProcessors/dpi-sample-app
/linux/Documentation/networking/device_drivers/ethernet/intel/
H A Diavf.rst1 .. SPDX-License-Identifier: GPL-2.0+
4 Linux Base Driver for Intel(R) Ethernet Adaptive Virtual Function
7 Intel Ethernet Adaptive Virtual Function Linux driver.
8 Copyright(c) 2013-2018 Intel Corporation.
13 - Overview
14 - Identifying Your Adapter
15 - Additional Configurations
16 - Known Issues/Troubleshooting
17 - Support
25 The iavf driver supports the below mentioned virtual function devices and
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/linux/include/uapi/misc/
H A Dfastrpc.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
22 * enum fastrpc_map_flags - control flags for mapping memory on DSP user process
23 * @FASTRPC_MAP_STATIC: Map memory pages with RW- permission and CACHE WRITEBACK.
25 * the buffer to FastRPC calls. Same virtual address will be
28 * @FASTRPC_MAP_FD: Map memory pages with RW- permission and CACHE WRITEBACK.
30 * CPU and DSP cache maintenance for the buffer. Get virtual address
33 * functions on DSP. It is useful to map a buffer with cache modes
38 * @FASTRPC_MAP_MAX: max count for flags
106 __u64 vaddrin; /* optional virtual address */
108 __u64 vaddrout; /* dsp virtual address */
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/linux/drivers/net/ethernet/qlogic/qlcnic/
H A Dqlcnic_83xx_vnic.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (c) 2009-2013 QLogic Corporation
14 return -EBUSY; in qlcnic_83xx_enable_vnic_mode()
16 QLCWRX(adapter->ahw, QLC_83XX_VNIC_STATE, QLCNIC_DEV_NPAR_OPER); in qlcnic_83xx_enable_vnic_mode()
25 struct qlcnic_hardware_context *ahw = adapter->ahw; in qlcnic_83xx_disable_vnic_mode()
29 return -EBUSY; in qlcnic_83xx_disable_vnic_mode()
32 QLCWRX(adapter->ahw, QLC_83XX_VNIC_STATE, QLCNIC_DEV_NPAR_NON_OPER); in qlcnic_83xx_disable_vnic_mode()
33 ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER; in qlcnic_83xx_disable_vnic_mode()
44 int ret = -EBUSY; in qlcnic_83xx_set_vnic_opmode()
46 struct qlcnic_hardware_context *ahw = adapter->ahw; in qlcnic_83xx_set_vnic_opmode()
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/linux/include/linux/
H A Dhighmem.h1 /* SPDX-License-Identifier: GPL-2.0 */
14 #include "highmem-internal.h"
17 * kmap - Map a page for long term usage
20 * Returns: The virtual address of the mapping
26 * this returns the virtual address of the direct kernel mapping.
28 * The returned virtual address is globally visible and valid up to the
40 * kunmap - Unmap the virtual address mapped by kmap()
49 * kmap_to_page - Get the page for a kmap'ed address
57 * kmap_flush_unused - Flush all unused kmap mappings in order to
63 * kmap_local_page - Map a page for temporary usage
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/linux/arch/arm64/mm/
H A Dinit.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 1995-2005 Russell King
24 #include <linux/dma-direct.h>
25 #include <linux/dma-map-ops.h>
40 #include <asm/kernel-pgtable.h>
50 #include <asm/xen/swiotlb-xen.h>
58 s64 memstart_addr __ro_after_init = -1;
63 * and ZONE_DMA32. By default ZONE_DMA covers the 32-bit addressable memory
64 * unless restricted on specific platforms (e.g. 30-bit on Raspberry Pi 4).
65 * In such case, ZONE_DMA32 covers the rest of the 32-bit addressable memory,
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/linux/include/sound/
H A Demux_synth.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
6 * Defines for the Emu-series WaveTable chip
64 #define SNDRV_EMUX_MAX_PORTS 32 /* max # of sequencer ports */
65 #define SNDRV_EMUX_MAX_VOICES 64 /* max # of voices */
66 #define SNDRV_EMUX_MAX_MULTI_VOICES 16 /* max # of playable voices
89 int midi_ports; /* number of virtual midi devices */
90 int midi_devidx; /* device offset of virtual midi */
108 struct timer_list tlist; /* for pending note-offs */
216 * prototypes - interface to Emu10k1 and Emu8k routines
223 * exported functions
/linux/sound/core/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
2 # ALSA soundcard-configuration
48 This options enables the sound core functions KUnit test.
56 to the KUnit documentation in Documentation/dev-tools/kunit/.
85 and read <file:Documentation/sound/designs/oss-emulation.rst>.
90 will be called snd-mixer-oss.
98 here and read <file:Documentation/sound/designs/oss-emulation.rst>.
103 will be called snd-pcm-oss.
106 bool "OSS PCM (digital audio) API - Include plugin system"
126 tristate "HR-timer backend support"
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/linux/include/net/
H A Dip_vs.h1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* IP Virtual Server
40 return net->ipvs; in net_ipvs()
74 iphdr->hdr_flags = hdr_flags; in ip_vs_fill_iph_skb_off()
75 iphdr->off = offset; in ip_vs_fill_iph_skb_off()
85 iphdr->saddr.in6 = iph->saddr; in ip_vs_fill_iph_skb_off()
86 iphdr->daddr.in6 = iph->daddr; in ip_vs_fill_iph_skb_off()
88 iphdr->len = offset; in ip_vs_fill_iph_skb_off()
89 iphdr->flags = 0; in ip_vs_fill_iph_skb_off()
90 iphdr->protocol = ipv6_find_hdr(skb, &iphdr->len, -1, in ip_vs_fill_iph_skb_off()
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/linux/sound/pci/echoaudio/
H A Dechoaudio.h3 Copyright Echo Digital Audio Corporation (c) 1998 - 2004
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 MA 02111-1307, USA.
26 Translation from C++ and adaptation for use in ALSA-Driver
34 +-----------+
35 record | |<-------------------- Inputs
36 <-------| | |
39 ------->| | +-------+
40 play | |--->|monitor|-------> Outputs
41 +-----------+ | mixer |
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/linux/Documentation/arch/arm/omap/
H A Ddss.rst7 TV-out and multiple display support, but there are lots of small improvements
10 The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB,
15 --------
19 - MIPI DPI (parallel) output
20 - MIPI DSI output in command mode
21 - MIPI DBI (RFBI) output
22 - SDI output
23 - TV output
24 - All pieces can be compiled as a module or inside kernel
25 - Use DISPC to update any of the outputs
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/linux/arch/mips/bcm47xx/
H A Dprom.c4 * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
61 unsigned long max; in prom_init_mem() local
68 * However as the BCM47XX is mostly used on low-memory systems, we in prom_init_mem()
70 * functions stop to work at some point during the boot, we should only in prom_init_mem()
82 max = 128 << 20; in prom_init_mem()
84 for (mem = 1 << 20; mem < max; mem += 1 << 20) { in prom_init_mem()
86 if (off + mem >= max) { in prom_init_mem()
87 mem = max; in prom_init_mem()
101 if (c->cputype == CPU_74K && (mem == (128 << 20))) in prom_init_mem()
102 mem -= 0x1000; in prom_init_mem()
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/linux/Documentation/core-api/
H A Drbtree.rst2 Red-black Trees (rbtree) in Linux
9 What are red-black trees, and what are they for?
10 ------------------------------------------------
12 Red-black trees are a type of self-balancing binary search tree, used for
19 Red-black trees are similar to AVL trees, but provide faster real-time bounded
26 There are a number of red-black trees in use in the kernel.
29 The high-resolution timer code uses an rbtree to organize outstanding
31 red-black tree. Virtual memory areas (VMAs) are tracked with red-black
38 Linux Weekly News article on red-black trees
41 Wikipedia entry on red-black trees
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/linux/drivers/vdpa/solidrun/
H A Dsnet_vdpa.h1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2022-2023 SolidRun
7 * Author: Alvaro Karsz <alvaro.karsz@solid-run.com>
18 #define SNET_ERR(pdev, fmt, ...) dev_err(&(pdev)->dev, "%s"fmt, "snet_vdpa: ", ##__VA_ARGS__)
19 #define SNET_WARN(pdev, fmt, ...) dev_warn(&(pdev)->dev, "%s"fmt, "snet_vdpa: ", ##__VA_ARGS__)
20 #define SNET_INFO(pdev, fmt, ...) dev_info(&(pdev)->dev, "%s"fmt, "snet_vdpa: ", ##__VA_ARGS__)
21 #define SNET_DBG(pdev, fmt, ...) dev_dbg(&(pdev)->dev, "%s"fmt, "snet_vdpa: ", ##__VA_ARGS__)
22 #define SNET_HAS_FEATURE(s, f) ((s)->negotiated_features & BIT_ULL(f))
24 #define SNET_CFG_VER(snet, ver) ((snet)->psnet->negotiated_cfg_ver >= (ver))
46 /* IRQ index, DPU uses this to parse data from MSI-X table */
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/linux/Documentation/networking/devlink/
H A Dice.rst1 .. SPDX-License-Identifier: GPL-2.0
13 .. list-table:: Generic parameters implemented
16 * - Name
17 - Mode
18 - Notes
19 * - ``enable_roce``
20 - runtime
21 - mutually exclusive with ``enable_iwarp``
22 * - ``enable_iwarp``
23 - runtime
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/linux/drivers/powercap/
H A Ddtpm.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * DTPM defines the functions to create a tree of constraints. Each
12 * parent node is a virtual description of the aggregation of the
42 return -ENOSYS; in get_time_window_us()
47 return -ENOSYS; in set_time_window_us()
54 *max_power_uw = dtpm->power_max - dtpm->power_min; in get_max_power_range_uw()
65 if (dtpm->ops) { in __get_power_uw()
66 *power_uw = dtpm->ops->get_power_uw(dtpm); in __get_power_uw()
72 list_for_each_entry(child, &dtpm->children, sibling) { in __get_power_uw()
91 list_for_each_entry(child, &dtpm->children, sibling) { in __dtpm_rebalance_weight()
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/linux/drivers/net/ethernet/cavium/liquidio/
H A Dcn23xx_vf_regs.h7 * Copyright (c) 2003-2016 Cavium, Inc.
14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
20 * Octeon CN23XX vf functions.
38 /* The input jabber is used to determine the TSO max size.
47 /* Each Input Queue register is at a 16-byte Offset in BAR0 */
52 /* 64 registers for Input Queue Instr Count - SLI_PKT_IN_DONE0_CNTS */
55 /* 64 registers for Input Queues Start Addr - SLI_PKT0_INSTR_BADDR */
58 /* 64 registers for Input Doorbell - SLI_PKT0_INSTR_BAOFF_DBELL */
61 /* 64 registers for Input Queue size - SLI_PKT0_INSTR_FIFO_RSIZE */
64 /* 64 registers (64-bit) - ES, RO, NS, Arbitration for Input Queue Data &
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/linux/drivers/clocksource/
H A Di8253.c1 // SPDX-License-Identifier: GPL-2.0
17 * 0040-0043 : timer0, i8253 / i8254
18 * 0061-0061 : NMI Control Register which contains two speaker control bits.
56 /* VIA686a test code... reset the latch if count > max + 1 */ in i8253_read()
61 count = PIT_LATCH - 1; in i8253_read()
85 count = (PIT_LATCH - 1) - count; in i8253_read()
114 * However, some virtual implementations differ, and the MODE change in clockevent_i8253_disable()
116 * in-kernel PIT) or the next interrupt (QEMU). And in those cases, in clockevent_i8253_disable()
122 * Hyper-V apparently has a bug where even in mode 0, the IRQ keeps in clockevent_i8253_disable()
185 * On UP the PIT can serve all of the possible timer functions. On SMP systems
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/linux/drivers/accel/habanalabs/common/
H A Dhabanalabs.h1 /* SPDX-License-Identifier: GPL-2.0
3 * Copyright 2016-2023 HabanaLabs, Ltd.
19 #include <linux/dma-direction.h>
28 #include <linux/io-64-nonatomic-lo-hi.h>
30 #include <linux/dma-buf.h>
45 * bits[63:59] - Encode mmap type
46 * bits[45:0] - mmap offset value
51 #define HL_MMAP_TYPE_SHIFT (59 - PAGE_SHIFT)
110 * enum hl_mmu_page_table_location - mmu page table location
111 * @MMU_DR_PGT: page-table is located on device DRAM.
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/linux/mm/
H A Dmemblock.c1 // SPDX-License-Identifier: GPL-2.0-or-later
47 * * ``memory`` - describes the physical memory available to the
51 * * ``reserved`` - describes the regions that were allocated
52 * * ``physmem`` - describes the actual physical memory available during
73 * functions. The first function does not assign the region to a NUMA
82 * * memblock_phys_alloc*() - these functions return the **physical**
84 * * memblock_alloc*() - these functions return the **virtual** address
90 * functions for more elaborate description.
118 .memory.max = INIT_MEMBLOCK_MEMORY_REGIONS,
122 .reserved.max = INIT_MEMBLOCK_RESERVED_REGIONS,
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