| /Linux-v5.10/Documentation/devicetree/bindings/net/ |
| D | ethernet-phy.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/ethernet-phy.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Lunn <andrew@lunn.ch>
11 - Florian Fainelli <f.fainelli@gmail.com>
12 - Heiner Kallweit <hkallweit1@gmail.com>
14 # The dt-schema tools will generate a select statement first by using
21 pattern: "^ethernet-phy(@[a-f0-9]+)?$"
24 - $nodename
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| D | mdio.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Lunn <andrew@lunn.ch>
11 - Florian Fainelli <f.fainelli@gmail.com>
12 - Heiner Kallweit <hkallweit1@gmail.com>
17 bus. These should follow the generic ethernet-phy.yaml document, or
24 "#address-cells":
27 "#size-cells":
30 reset-gpios:
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| /Linux-v5.10/drivers/gpu/drm/i915/ |
| D | Kconfig.debug | 1 # SPDX-License-Identifier: GPL-2.0-only
12 Add -Werror to the build flags for (and only for) i915.ko.
40 Choose this option to turn on extra driver debugging that may affect
48 bool "Always insert extra checks around mmio access by default"
52 reads) around every mmio (register) access that will slow the system
53 down. This sets the default value of i915.mmio_debug to -1 and can
91 ordinary tests, but may be vital for post-mortem debugging when
105 ordinary tests, but may be vital for post-mortem debugging when
118 Choose this option to turn on extra driver debugging that may affect
130 Choose this option to turn on extra driver debugging that may affect
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| /Linux-v5.10/Documentation/fb/ |
| D | vesafb.rst | 7 The idea is simple: Turn on graphics mode at boot time with the help
20 * You can run XF68_FBDev on top of /dev/fb0 (=> non-accelerated X11
22 * Most important: boot logo :-)
33 Documentation/admin-guide/svga.rst for details.
81 "vga=mode-number" you have to transform the numbers to decimal.
88 XF68_FBDev should work just fine, but it is non-accelerated. Running
89 another (accelerated) X-Server like XF86_SVGA might or might not work.
90 It depends on X-Server and graphics board.
92 The X-Server must restore the video mode correctly, else you end up
93 with a broken console (and vesafb cannot do anything about this).
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| /Linux-v5.10/Documentation/process/ |
| D | 4.Coding.rst | 6 While there is much to be said for a solid and community-oriented design
19 ---------
25 :ref:`Documentation/process/coding-style.rst <codingstyle>`. For much of
38 strangely-formatted code.
43 giving up a degree of control in a number of ways - including control over
49 as a way of getting their name into the kernel changelogs - or both. But
59 80-column limit, for example), just do it.
61 Note that you can also use the ``clang-format`` tool to help you with
62 these rules, to quickly re-format parts of your code automatically,
66 See the file :ref:`Documentation/process/clang-format.rst <clangformat>`
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| D | applying-patches.rst | 54 in the patch file when applying it (the ``-p1`` argument to ``patch`` does
57 To revert a previously applied patch, use the -R argument to patch.
60 patch -p1 < ../patch-x.y.z
64 patch -R -p1 < ../patch-x.y.z
76 patch -p1 < path/to/patch-x.y.z
82 Patch can also get the name of the file to use via the -i argument, like
85 patch -p1 -i path/to/patch-x.y.z
91 xzcat path/to/patch-x.y.z.xz | patch -p1
92 bzcat path/to/patch-x.y.z.gz | patch -p1
96 gunzip or xz on the file -- like this::
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| D | 2.Process.rst | 14 ---------------
16 The kernel developers use a loosely time-based release process, with a new
53 be called 5.6-rc1. The -rc1 release is the signal that the time to
63 exception is made for drivers for previously-unsupported hardware; if they
64 touch no in-tree code, they cannot cause regressions and should be safe to
68 time. Linus releases new -rc kernels about once a week; a normal series
69 will get up to somewhere between -rc6 and -rc9 before the kernel is
78 September 30 5.4-rc1, merge window closes
79 October 6 5.4-rc2
80 October 13 5.4-rc3
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| D | coding-style.rst | 19 --------------
31 Now, some people will claim that having 8-character indentations makes
33 80-character terminal screen. The answer to that is that if you need
37 In short, 8-char indents make things easier to read, and have the added
43 instead of ``double-indenting`` the ``case`` labels. E.g.:
45 .. code-block:: c
67 .. code-block:: c
76 used for indentation, and the above example is deliberately broken.
82 ----------------------------------
89 Statements longer than 80 columns should be broken into sensible chunks,
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| /Linux-v5.10/Documentation/power/ |
| D | swsusp.rst | 32 power states like "standby", which normally don't turn USB off.)
47 - If you feel ACPI works pretty well on your system, you might try::
51 - If you would like to write hibernation image to swap and then suspend
56 - If you have SATA disks, you'll need recent kernels with SATA suspend
58 are built into kernel -- not modules. [There's way to make
66 before suspend (it is limited to around 2/5 of available RAM by default).
68 - The resume process checks for the presence of the resume device,
72 - The resume process may be triggered in two ways:
81 read-only) otherwise data may be corrupted.
87 Last revised: 2003-10-20 by Pavel Machek
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| /Linux-v5.10/arch/x86/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
4 bool "64-bit kernel" if "$(ARCH)" = "x86"
7 Say yes to build a 64-bit kernel - formerly known as x86_64
8 Say no to build a 32-bit kernel - formerly known as i386
13 # Options that are inherently 32-bit kernel only:
25 # Options that are inherently 64-bit kernel only:
40 We keep the static function tracing (!DYNAMIC_FTRACE) around
43 only need to keep it around for x86_64. No need to keep it
49 # ported to 32-bit as well. )
252 default "elf32-i386" if X86_32
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| /Linux-v5.10/drivers/net/mdio/ |
| D | mdio-bcm-unimac.c | 1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2014-2017 Broadcom
21 #include <linux/platform_data/mdio-bcm-unimac.h>
52 * peripheral registers for CPU-native byte order. in unimac_mdio_readl()
55 return __raw_readl(priv->base + offset); in unimac_mdio_readl()
57 return readl_relaxed(priv->base + offset); in unimac_mdio_readl()
64 __raw_writel(val, priv->base + offset); in unimac_mdio_writel()
66 writel_relaxed(val, priv->base + offset); in unimac_mdio_writel()
93 } while (--timeout); in unimac_mdio_poll()
95 return -ETIMEDOUT; in unimac_mdio_poll()
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| D | of_mdio.c | 1 // SPDX-License-Identifier: GPL-2.0-only
29 * ethernet-phy-idAAAA.BBBB */
37 if (sscanf(cp, "ethernet-phy-id%4x.%4x", &upper, &lower) == 2) { in of_get_phy_id()
42 return -EINVAL; in of_get_phy_id()
52 if (err == -ENOENT) in of_find_mii_timestamper()
58 return ERR_PTR(-EINVAL); in of_find_mii_timestamper()
69 if (rc == -EPROBE_DEFER) in of_mdiobus_phy_device_register()
73 phy->irq = rc; in of_mdiobus_phy_device_register()
74 mdio->irq[addr] = rc; in of_mdiobus_phy_device_register()
76 phy->irq = mdio->irq[addr]; in of_mdiobus_phy_device_register()
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| /Linux-v5.10/drivers/char/agp/ |
| D | uninorth-agp.c | 1 // SPDX-License-Identifier: GPL-2.0-only
41 A_SIZE_32(agp_bridge->driver->aperture_sizes); in uninorth_fetch_size()
49 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) in uninorth_fetch_size()
53 if (i == agp_bridge->driver->num_aperture_sizes) { in uninorth_fetch_size()
54 dev_err(&agp_bridge->dev->dev, "invalid aperture size, " in uninorth_fetch_size()
62 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) in uninorth_fetch_size()
67 agp_bridge->previous_size = in uninorth_fetch_size()
68 agp_bridge->current_size = (void *)(values + i); in uninorth_fetch_size()
69 agp_bridge->aperture_size_idx = i; in uninorth_fetch_size()
79 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL, in uninorth_tlbflush()
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| /Linux-v5.10/fs/nfsd/ |
| D | state.h | 94 /* For an open stateid kept around *only* to process close replays: */
96 /* For a deleg stateid kept around only to process free_stateid's: */
129 * is broken, put when the rpc exits)
136 * the object will either be destroyed (v4.0) or moved to a per-client list of
164 per-session otherwise */
211 u32 flavor; /* (u32)(-1) used to mean "no valid flavor" */
262 /* See SESSION4_PERSIST, etc. for standard flags; this is internal-only: */
286 * struct nfs4_client - one per client. Clientids live here.
292 * per-nfsd_net client_lock spinlock.
314 struct rb_node cl_namenode; /* link into by-name trees */
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| /Linux-v5.10/arch/arm64/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
161 if $(cc-option,-fpatchable-function-entry=2)
205 ARM 64-bit (AArch64) Linux support.
237 # VA_BITS - PAGE_SHIFT - 3
330 def_bool !$(as-instr,1:\n.inst 0\n.rept . - 1b\n\nnop\n.endr\n)
357 …bool "Cortex-A53: 826319: System might deadlock if a write cannot complete until read data is acce…
361 This option adds an alternative code sequence to work around ARM
362 erratum 826319 on Cortex-A53 parts up to r0p2 with an AMBA 4 ACE or
365 If a Cortex-A53 uses an AMBA AXI4 ACE interface to other processors
371 data cache clean-and-invalidate.
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| /Linux-v5.10/Documentation/admin-guide/ |
| D | kernel-parameters.txt | 5 force -- enable ACPI if default was off
6 on -- enable ACPI but allow fallback to DT [arm64]
7 off -- disable ACPI if default was on
8 noirq -- do not use ACPI for IRQ routing
9 strict -- Be less tolerant of platforms that are not
11 rsdt -- prefer RSDT over (default) XSDT
12 copy_dsdt -- copy DSDT to memory
26 If set to vendor, prefer vendor-specific driver
35 64 bit X_* addresses. Some firmware have broken 64
58 Documentation/firmware-guide/acpi/debug.rst for more information about
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| /Linux-v5.10/drivers/scsi/ufs/ |
| D | ufshcd.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4 * Copyright (C) 2011-2013 Samsung India Software Operations
5 * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
35 #include <linux/keyslot-manager.h>
62 * struct uic_command - UIC command structure
90 /* Host <-> Device UniPro Link state */
95 UIC_LINK_BROKEN_STATE = 3, /* Link is in broken state */
98 #define ufshcd_is_link_off(hba) ((hba)->uic_link_state == UIC_LINK_OFF_STATE)
99 #define ufshcd_is_link_active(hba) ((hba)->uic_link_state == \
101 #define ufshcd_is_link_hibern8(hba) ((hba)->uic_link_state == \
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| /Linux-v5.10/arch/arm/mm/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
17 A 32-bit RISC microprocessor based on the ARM7 processor core
36 A 32-bit RISC processor with 8kByte Cache, Write Buffer and
37 MMU built around an ARM7TDMI core.
53 A 32-bit RISC processor with 8KB cache or 4KB variants,
54 write buffer and MPU(Protection Unit) built around
69 A 32-bit RISC microprocessor based on the ARM9 processor core
182 ARM940T is a member of the ARM9TDMI family of general-
184 instruction and 4KB data cases, each with a 4-word line
190 # ARM946E-S
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| /Linux-v5.10/arch/sparc/mm/ |
| D | srmmu.c | 1 // SPDX-License-Identifier: GPL-2.0
29 #include <asm/io-unit.h>
75 #define FLUSH_BEGIN(mm) if ((mm)->context != NO_CONTEXT) {
98 #define SRMMU_NOCACHE_BITMAP_SHIFT (PAGE_SHIFT - 4)
109 /* XXX should we hyper_flush_whole_icache here - Anton */
158 if (size & (minsz - 1)) { in __srmmu_get_nocache()
161 size += minsz - 1; in __srmmu_get_nocache()
168 if (offset == -1) { in __srmmu_get_nocache()
215 if (vaddr & (size - 1)) { in srmmu_free_nocache()
220 offset = (vaddr - SRMMU_NOCACHE_VADDR) >> SRMMU_NOCACHE_BITMAP_SHIFT; in srmmu_free_nocache()
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| /Linux-v5.10/arch/x86/kernel/cpu/ |
| D | intel.c | 1 // SPDX-License-Identifier: GPL-2.0
18 #include <asm/intel-family.h>
61 * Processors which have self-snooping capability can handle conflicting
69 switch (c->x86_model) { in check_memory_type_self_snoop_errata()
101 if (c->x86 != 6) in probe_xeon_phi_r3mwait()
103 switch (c->x86_model) { in probe_xeon_phi_r3mwait()
123 * Early microcode releases for the Spectre v2 mitigation were broken.
125 * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/03/microcode-update-guidance.pdf
126 * - https://kb.vmware.com/s/article/52345
127 * - Microcode revisions observed in the wild
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| /Linux-v5.10/Documentation/dev-tools/ |
| D | kgdb.rst | 15 Kdb is simplistic shell-style interface which you can use on a system
22 kernel built-ins or in kernel modules if the code was built with
40 kgdb I/O modules compiled as built-ins or loadable kernel modules in the
46 - In order to enable compilation of kdb, you must first enable kgdb.
48 - The kgdb test compile options are described in the kgdb test suite
52 ------------------------------
55 :menuselection:`Kernel hacking --> Kernel debugging` and select
60 will want to turn on ``CONFIG_DEBUG_INFO`` which is called
63 It is advised, but not required, that you turn on the
74 certain regions of the kernel's memory space as read-only. If kgdb
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| /Linux-v5.10/drivers/crypto/ccp/ |
| D | ccp-dev-v5.c | 1 // SPDX-License-Identifier: GPL-2.0-only
12 #include <linux/dma-mapping.h>
17 #include "ccp-dev.h"
22 * If no space is available, wait around.
31 if (cmd_q->lsb >= 0) { in ccp_lsb_alloc()
32 start = (u32)bitmap_find_next_zero_area(cmd_q->lsbmap, in ccp_lsb_alloc()
36 bitmap_set(cmd_q->lsbmap, start, count); in ccp_lsb_alloc()
37 return start + cmd_q->lsb * LSB_SIZE; in ccp_lsb_alloc()
42 ccp = cmd_q->ccp; in ccp_lsb_alloc()
44 mutex_lock(&ccp->sb_mutex); in ccp_lsb_alloc()
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| /Linux-v5.10/drivers/acpi/ |
| D | acpi_video.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * video.c - ACPI Video Driver
7 * Copyright (C) 2006 Thomas Tuttle <linux-kernel@ttuttle.net>
53 static int disable_backlight_sysfs_if = -1;
58 static int report_key_events = -1;
63 static int hw_changes_brightness = -1;
67 "a hotkey is pressed: -1: auto, 0: normal 1: hw-changes-brightness");
76 static int only_lcd = -1;
135 u32 display_index:4; /* A zero-based instance of the Display */
140 u32 depend_on_vga:1; /* Non-VGA output device whose power is related to
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| /Linux-v5.10/lib/ |
| D | Kconfig.debug | 1 # SPDX-License-Identifier: GPL-2.0-only
19 parameter printk.time=1. See Documentation/admin-guide/kernel-parameters.rst
39 int "Default console loglevel (1-15)"
49 Note: This does not affect the log level of un-prefixed printk()
54 int "quiet console loglevel (1-15)"
65 int "Default message log level (1-7)"
71 This was hard-coded to KERN_WARNING since at least 2.6.10 but folks
107 enabled/disabled based on various levels of scope - per source file,
147 nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
151 nullarbor:~ # echo -n 'file svcsock.c +p' >
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| /Linux-v5.10/mm/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
25 This option is best suited for non-NUMA systems with
56 memory hot-plug systems. This is normal.
60 hot-plug and hot-remove.
138 # Keep arch NUMA mapping infrastructure post-init.
154 bool "Allow for memory hot-add"
158 depends on 64BIT || BROKEN
173 See Documentation/admin-guide/mm/memory-hotplug.rst for more information.
175 Say Y here if you want all hot-plugged memory blocks to appear in
177 Say N here if you want the default policy to keep all hot-plugged
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