| /linux-6.12.1/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.
66 Choose this option to turn on extra driver debugging that may affect
74 bool "Always insert extra checks around mmio access by default"
78 reads) around every mmio (register) access that will slow the system
79 down. This sets the default value of i915.mmio_debug to -1 and can
132 ordinary tests, but may be vital for post-mortem debugging when
146 ordinary tests, but may be vital for post-mortem debugging when
159 Choose this option to turn on extra driver debugging that may affect
171 Choose this option to turn on extra driver debugging that may affect
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| /linux-6.12.1/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 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Lunn <andrew@lunn.ch>
11 - Florian Fainelli <f.fainelli@gmail.com>
12 - Heiner Kallweit <hkallweit1@gmail.com>
17 bus. These should follow the generic ethernet-phy.yaml document, or
22 pattern: '^mdio(-(bus|external))?(@.+|-([0-9]+))?$'
24 "#address-cells":
27 "#size-cells":
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| /linux-6.12.1/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-6.12.1/drivers/net/mdio/ |
| D | fwnode_mdio.c | 1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <linux/pse-pd/pse.h>
34 if (PTR_ERR(psec) == -ENOENT) in fwnode_find_pse_control()
51 if (err == -ENOENT) in fwnode_find_mii_timestamper()
57 return ERR_PTR(-EINVAL); in fwnode_find_mii_timestamper()
72 if (rc == -EPROBE_DEFER) in fwnode_mdiobus_phy_device_register()
73 rc = driver_deferred_probe_check_state(&phy->mdio.dev); in fwnode_mdiobus_phy_device_register()
74 if (rc == -EPROBE_DEFER) in fwnode_mdiobus_phy_device_register()
78 phy->irq = rc; in fwnode_mdiobus_phy_device_register()
79 mdio->irq[addr] = rc; in fwnode_mdiobus_phy_device_register()
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| D | mdio-bcm-unimac.c | 1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2014-2017 Broadcom
17 #include <linux/platform_data/mdio-bcm-unimac.h>
50 * peripheral registers for CPU-native byte order. in unimac_mdio_readl()
53 return __raw_readl(priv->base + offset); in unimac_mdio_readl()
55 return readl_relaxed(priv->base + offset); in unimac_mdio_readl()
62 __raw_writel(val, priv->base + offset); in unimac_mdio_writel()
64 writel_relaxed(val, priv->base + offset); in unimac_mdio_writel()
93 struct unimac_mdio_priv *priv = bus->priv; in unimac_mdio_read()
97 ret = clk_prepare_enable(priv->clk); in unimac_mdio_read()
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| /linux-6.12.1/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/dev-tools/clang-format.rst <clangformat>`
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| D | maintainer-kvm-x86.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 --------
17 -----
21 -----
25 specific tree, ``github.com/kvm-x86/linux.git``.
39 using finer-grained topic branches is to make it easier to keep tabs on an area
42 in-flight commits' SHA1 hashes, and having to reject a pull request due to bugs
46 via a Cthulhu merge on an as-needed basis, i.e. when a topic branch is updated.
61 close around rc5 for new features, and a soft close around rc6 for fixes (for
69 Patches that will be taken through a non-KVM tree (most often through the tip
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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
74 .. code-block:: c
81 .. code-block:: c
93 used for indentation, and the above example is deliberately broken.
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| /linux-6.12.1/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-6.12.1/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:
27 # Options that are inherently 64-bit kernel only:
46 We keep the static function tracing (!DYNAMIC_FTRACE) around
49 only need to keep it around for x86_64. No need to keep it
55 # ported to 32-bit as well. )
150 # Word-size accesses may read uninitialized data past the trailing \0
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| /linux-6.12.1/arch/arm64/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
272 ARM 64-bit (AArch64) Linux support.
280 # required due to use of the -Zfixed-x18 flag.
283 # -Zsanitizer=shadow-call-stack flag.
293 depends on $(cc-option,-fpatchable-function-entry=2)
319 # VA_BITS - PAGE_SHIFT - 3
397 def_bool !$(as-instr,1:\n.inst 0\n.rept . - 1b\n\nnop\n.endr\n)
402 # https://github.com/llvm/llvm-project/commit/2a96f47c5ffca84cd774ad402cacd137f4bf45e2
441 This option adds an alternative code sequence to work around Ampere
452 at stage-2.
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| /linux-6.12.1/drivers/char/agp/ |
| D | uninorth-agp.c | 1 // SPDX-License-Identifier: GPL-2.0-only
42 A_SIZE_32(agp_bridge->driver->aperture_sizes); in uninorth_fetch_size()
50 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) in uninorth_fetch_size()
54 if (i == agp_bridge->driver->num_aperture_sizes) { in uninorth_fetch_size()
55 dev_err(&agp_bridge->dev->dev, "invalid aperture size, " in uninorth_fetch_size()
63 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) in uninorth_fetch_size()
68 agp_bridge->previous_size = in uninorth_fetch_size()
69 agp_bridge->current_size = (void *)(values + i); in uninorth_fetch_size()
70 agp_bridge->aperture_size_idx = i; in uninorth_fetch_size()
80 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL, in uninorth_tlbflush()
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| /linux-6.12.1/drivers/acpi/x86/ |
| D | utils.c | 1 // SPDX-License-Identifier: GPL-2.0-only
8 * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
17 #include <asm/intel-family.h>
21 * Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
25 * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
28 * Likewise sometimes some not-actually present devices are sometimes
31 * We work around this by using the below quirk list to override the status
37 * are re-used on different SoCs for completely different devices.
116 * but it is. In the 67000+ DMI decode dumps from linux-hardware.org
121 * was copy-pasted from the GPD win, so it has a disabled KIOX000A
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| /linux-6.12.1/fs/nfsd/ |
| D | state.h | 105 * ->cl_lock protects sc_status for open and lock stateids.
106 * ->st_mutex also protect sc_status for open stateids.
107 * ->ls_lock protects sc_status for layout stateids.
110 * For an open stateid kept around *only* to process close replays.
114 /* For a deleg stateid kept around only to process free_stateid's: */
167 * is broken, put when the rpc exits)
174 * the object will either be destroyed (v4.0) or moved to a per-client list of
206 per-session otherwise */
251 u32 flavor; /* (u32)(-1) used to mean "no valid flavor" */
302 /* See SESSION4_PERSIST, etc. for standard flags; this is internal-only: */
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| /linux-6.12.1/Documentation/admin-guide/ |
| D | verify-bugs-and-bisect-regressions.rst | 1 .. SPDX-License-Identifier: (GPL-2.0+ OR CC-BY-4.0)
9 currently supported by developers -- to then explain how to locate the change
22 read and navigate this document -- especially when you want to look something
26 https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.html
32 over to the* ':ref:`step-by-step guide <introguide_bissbs>`' *below. It utilizes
45 *segment 2*. Then you can submit a preliminary report -- or continue with
47 full-fledged regression report. In the following example 6.0.13 is assumed to be
48 the 'working' kernel and 6.1.5 to be the first 'broken', which is why 6.0
55 # * Ensure Secure Boot permits booting self-compiled Linux kernels.
59 git clone -o mainline --no-checkout \
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| D | kernel-parameters.txt | 16 force -- enable ACPI if default was off
17 on -- enable ACPI but allow fallback to DT [arm64,riscv64]
18 off -- disable ACPI if default was on
19 noirq -- do not use ACPI for IRQ routing
20 strict -- Be less tolerant of platforms that are not
22 rsdt -- prefer RSDT over (default) XSDT
23 copy_dsdt -- copy DSDT to memory
24 nospcr -- disable console in ACPI SPCR table as
41 If set to vendor, prefer vendor-specific driver
50 64 bit X_* addresses. Some firmware have broken 64
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| /linux-6.12.1/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-6.12.1/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-6.12.1/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
73 certain regions of the kernel's memory space as read-only. If kgdb
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| /linux-6.12.1/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-6.12.1/arch/x86/kernel/cpu/ |
| D | intel.c | 1 // SPDX-License-Identifier: GPL-2.0
22 #include <asm/intel-family.h>
67 * Processors which have self-snooping capability can handle conflicting
75 switch (c->x86_vfm) { in check_memory_type_self_snoop_errata()
107 if (c->x86 != 6) in probe_xeon_phi_r3mwait()
109 switch (c->x86_vfm) { in probe_xeon_phi_r3mwait()
129 * Early microcode releases for the Spectre v2 mitigation were broken.
131 * - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/03/microcode-update-guidance.pdf
132 * - https://kb.vmware.com/s/article/52345
133 * - Microcode revisions observed in the wild
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| /linux-6.12.1/include/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.
16 #include <linux/blk-crypto-profile.h>
17 #include <linux/blk-mq.h>
19 #include <linux/fault-inject.h>
23 #include <linux/dma-direction.h>
68 * struct uic_command - UIC command structure
92 /* Host <-> Device UniPro Link state */
97 UIC_LINK_BROKEN_STATE = 3, /* Link is in broken state */
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