| /linux-6.8/Documentation/gpu/amdgpu/display/ |
| D | mpo-overview.rst | 6 'Documentation/gpu/amdgpu/display/dcn-overview.rst'.
10 fixed-function hardware in the display controller rather than using graphics or
11 compute shaders for composition. This can yield some power savings if it means
12 the graphics/compute pipelines can be put into low-power states. In summary,
13 MPO can bring the following benefits:
15 * Decreased GPU and CPU workload - no composition shaders needed, no extra
16 buffer copy needed, GPU can remain idle.
17 * Plane independent page flips - No need to be tied to global compositor
18 page-flip present rate, reduced latency, independent timing.
20 .. note:: Keep in mind that MPO is all about power-saving; if you want to learn
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| /linux-6.8/Documentation/virt/ |
| D | ne_overview.rst | 1 .. SPDX-License-Identifier: GPL-2.0
15 can be separated from other applications running in the same VM. This
16 application then runs in a separate VM than the primary VM, namely an enclave.
24 carved out of the primary VM. Each enclave is mapped to a process running in the
25 primary VM, that communicates with the NE kernel driver via an ioctl interface.
29 1. An enclave abstraction process - a user space process running in the primary
33 There is a NE emulated PCI device exposed to the primary VM. The driver for this
39 hypervisor running on the host where the primary VM is running. The Nitro
42 2. The enclave itself - a VM running on the same host as the primary VM that
43 spawned it. Memory and CPUs are carved out of the primary VM and are dedicated
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| /linux-6.8/Documentation/devicetree/bindings/net/can/ |
| D | st,stm32-bxcan.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/can/st,stm32-bxcan.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
9 description: STMicroelectronics BxCAN controller for CAN bus
12 - Dario Binacchi <dario.binacchi@amarulasolutions.com>
15 - $ref: can-controller.yaml#
20 - st,stm32f4-bxcan
22 st,can-primary:
24 Primary mode of the bxCAN peripheral is only relevant if the chip has
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| /linux-6.8/drivers/mfd/ |
| D | wm831x-irq.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * wm831x-irq.c -- Interrupt controller support for Wolfson WM831x PMICs
26 int primary; member
33 .primary = WM831X_TEMP_INT,
38 .primary = WM831X_GP_INT,
43 .primary = WM831X_GP_INT,
48 .primary = WM831X_GP_INT,
53 .primary = WM831X_GP_INT,
58 .primary = WM831X_GP_INT,
63 .primary = WM831X_GP_INT,
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| D | wm8350-irq.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * wm8350-irq.c -- IRQ support for Wolfson WM8350
35 int primary; member
43 .primary = WM8350_OC_INT,
49 .primary = WM8350_UV_INT,
54 .primary = WM8350_UV_INT,
59 .primary = WM8350_UV_INT,
64 .primary = WM8350_UV_INT,
69 .primary = WM8350_UV_INT,
74 .primary = WM8350_UV_INT,
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| /linux-6.8/Documentation/arch/sparc/oradax/ |
| D | dax-hv-api.txt | 3 Publication date 2017-09-25 08:21
5 Extracted via "pdftotext -f 547 -l 572 -layout sun4v_20170925.pdf"
16 live-migration and other system management activities.
20 …high speed processoring of database-centric operations. The coprocessors may support one or more of
28 …e Completion Area and, unless execution order is specifically restricted through the use of serial-
39 …machine, however, internal resource limitations within the virtual machine can cause CCB submissio…
45 …device node in the guest MD (Section 8.24.17, “Database Analytics Accelerators (DAX) virtual-device
51 36.1.1.1. "ORCL,sun4v-dax" Device Compatibility
54 • No-op/Sync
81 36.1.1.2. "ORCL,sun4v-dax-fc" Device Compatibility
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| D | oracle-dax.rst | 7 as well as physical memory. It can perform several operations on data
25 the accompanying document, dax-hv-api.txt, which is a plain text
27 Specification" version 3.0.20+15, dated 2017-09-25.
64 domain (LDOM) can have a partition of physical memory that is isolated
69 The DAX coprocessor can only operate on physical memory, so before a
70 request can be fed to the coprocessor, all the addresses in a CCB must
86 made accessible via mmap(), and are read-only for the application.
105 name can be used to determine what the platform supports.
109 equal to the number of bytes given in the call. Otherwise -1 is
113 -----------
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| /linux-6.8/drivers/gpu/drm/ |
| D | drm_modeset_helper.c | 35 * This helper library contains various one-off functions which don't really fit
40 * drm_helper_move_panel_connectors_to_head() - move panels to the front in the
57 spin_lock_irq(&dev->mode_config.connector_list_lock); in drm_helper_move_panel_connectors_to_head()
59 &dev->mode_config.connector_list, head) { in drm_helper_move_panel_connectors_to_head()
60 if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS || in drm_helper_move_panel_connectors_to_head()
61 connector->connector_type == DRM_MODE_CONNECTOR_eDP || in drm_helper_move_panel_connectors_to_head()
62 connector->connector_type == DRM_MODE_CONNECTOR_DSI) in drm_helper_move_panel_connectors_to_head()
63 list_move_tail(&connector->head, &panel_list); in drm_helper_move_panel_connectors_to_head()
66 list_splice(&panel_list, &dev->mode_config.connector_list); in drm_helper_move_panel_connectors_to_head()
67 spin_unlock_irq(&dev->mode_config.connector_list_lock); in drm_helper_move_panel_connectors_to_head()
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| D | drm_crtc.c | 2 * Copyright (c) 2006-2008 Intel Corporation
36 #include <linux/dma-fence.h>
77 * drm_crtc_from_index - find the registered CRTC at an index
92 if (idx == crtc->index) in drm_crtc_from_index()
105 WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev)); in drm_crtc_force_disable()
130 if (crtc->funcs->late_register) in drm_crtc_register_all()
131 ret = crtc->funcs->late_register(crtc); in drm_crtc_register_all()
144 if (crtc->funcs->early_unregister) in drm_crtc_unregister_all()
145 crtc->funcs->early_unregister(crtc); in drm_crtc_unregister_all()
153 spin_lock_init(&crtc->crc.lock); in drm_crtc_crc_init()
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| /linux-6.8/drivers/net/wireless/intel/iwlwifi/mvm/ |
| D | coex.c | 1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
3 * Copyright (C) 2013-2014, 2018-2020, 2022-2023 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
11 #include "iwl-modparams.h"
13 #include "iwl-debug.h"
100 * Checking that we hold mvm->mutex is a good idea, but the rate in iwl_get_coex_type()
101 * control can't acquire the mutex since it runs in Tx path. in iwl_get_coex_type()
109 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf); in iwl_get_coex_type()
112 chanctx_conf->def.chan->band != NL80211_BAND_2GHZ) { in iwl_get_coex_type()
119 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); in iwl_get_coex_type()
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| /linux-6.8/drivers/block/drbd/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
19 DRBD is a shared-nothing, synchronously replicated block device. It
21 clusters and in this context, is a "drop-in" replacement for shared
24 Each minor device has a role, which can be 'primary' or 'secondary'.
25 On the node with the primary device the application is supposed to
31 DRBD can also be used in dual-Primary mode (device writable on both
32 nodes), which means it can exhibit shared disk semantics in a
33 shared-nothing cluster. Needless to say, on top of dual-Primary
38 See also: https://www.drbd.org/, http://www.linux-ha.org
|
| D | drbd_strings.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 Copyright (C) 2003-2008, LINBIT Information Technologies GmbH.
8 Copyright (C) 2003-2008, Philipp Reisner <philipp.reisner@linbit.com>.
9 Copyright (C) 2003-2008, Lars Ellenberg <lars.ellenberg@linbit.com>.
45 [R_PRIMARY] = "Primary",
63 [-SS_TWO_PRIMARIES] = "Multiple primaries not allowed by config",
64 [-SS_NO_UP_TO_DATE_DISK] = "Need access to UpToDate data",
65 [-SS_NO_LOCAL_DISK] = "Can not resync without local disk",
66 [-SS_NO_REMOTE_DISK] = "Can not resync without remote disk",
67 [-SS_CONNECTED_OUTDATES] = "Refusing to be Outdated while Connected",
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| /linux-6.8/arch/powerpc/kvm/ |
| D | book3s_hv_ras.c | 1 // SPDX-License-Identifier: GPL-2.0-only
21 #define SRR1_MC_LDSTERR (1ul << (63-42))
22 #define SRR1_MC_IFETCH_SH (63-45)
25 #define SRR1_MC_IFETCH_SLBMULTI 3 /* SLB multi-hit */
26 #define SRR1_MC_IFETCH_SLBPARMULTI 4 /* SLB parity + multi-hit */
27 #define SRR1_MC_IFETCH_TLBMULTI 5 /* I-TLB multi-hit */
30 #define DSISR_MC_DERAT_MULTI 0x800 /* D-ERAT multi-hit */
31 #define DSISR_MC_TLB_MULTI 0x400 /* D-TLB multi-hit */
33 #define DSISR_MC_SLB_MULTI 0x080 /* SLB multi-hit */
34 #define DSISR_MC_SLB_PARMULTI 0x040 /* SLB parity + multi-hit */
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| /linux-6.8/Documentation/userspace-api/media/v4l/ |
| D | vidioc-g-tuner.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_TUNER - VIDIOC_S_TUNER - Get or set tuner attributes
52 Since this is a write-only ioctl, it does not return the actually
68 .. flat-table:: struct v4l2_tuner
69 :header-rows: 0
70 :stub-columns: 0
72 * - __u32
73 - ``index``
74 - :cspan:`1` Identifies the tuner, set by the application.
75 * - __u8
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| /linux-6.8/Documentation/devicetree/bindings/powerpc/fsl/ |
| D | msi-pic.txt | 4 - compatible : compatible list, may contain one or two entries
5 The first is "fsl,CHIP-msi", where CHIP is the processor(mpc8610, mpc8572,
6 etc.) and the second is "fsl,mpic-msi" or "fsl,ipic-msi" or
7 "fsl,mpic-msi-v4.3" depending on the parent type and version. If mpic
9 provided to access these 16 registers, and compatible "fsl,mpic-msi-v4.3"
13 - reg : It may contain one or two regions. The first region should contain
19 - interrupts : each one of the interrupts here is one entry per 32 MSIs,
21 be set as edge sensitive. If msi-available-ranges is present, only
25 - msi-available-ranges: use <start count> style section to define which
26 msi interrupt can be used in the 256 msi interrupts. This property is
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| /linux-6.8/drivers/video/console/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
20 The program SVGATextMode can be used to utilize SVGA video cards to
28 tristate "MDA text console (dual-headed)"
33 say Y here if your MDA card is the primary card in your system; the
59 On PA-RISC, the default value is 160, which should fit a 1280x1024
70 On PA-RISC, the default value is 64, which should fit a 1280x1024
82 Low-level framebuffer-based console driver.
90 This option enables the fbcon (framebuffer text-based) hardware
94 On modern machines, on mainstream machines (like x86-64) or when
105 bool "Map the console to the primary display device"
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|
| /linux-6.8/drivers/gpu/drm/i915/display/ |
| D | intel_sprite_uapi.c | 1 // SPDX-License-Identifier: MIT
19 struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); in intel_plane_set_ckey()
20 struct drm_i915_private *dev_priv = to_i915(plane->base.dev); in intel_plane_set_ckey()
21 struct drm_intel_sprite_colorkey *key = &plane_state->ckey; in intel_plane_set_ckey()
27 * sprite and not on the primary. in intel_plane_set_ckey()
29 if (plane->id == PLANE_PRIMARY && in intel_plane_set_ckey()
30 set->flags & I915_SET_COLORKEY_SOURCE) in intel_plane_set_ckey()
31 key->flags = 0; in intel_plane_set_ckey()
35 * the primary and not on the sprite. in intel_plane_set_ckey()
37 if (DISPLAY_VER(dev_priv) >= 9 && plane->id != PLANE_PRIMARY && in intel_plane_set_ckey()
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| /linux-6.8/include/drm/ |
| D | drm_file.h | 4 * Copyright (c) 2009-2010, Code Aurora Forum.
67 * struct drm_minor - DRM device minor structure
72 * &struct drm_device, which is also where driver-private data and resources can
87 * struct drm_pending_event - Event queued up for userspace to read
89 * This represents a DRM event. Drivers can use this as a generic completion
90 * mechanism, which supports kernel-internal &struct completion, &struct dma_fence
91 * and also the DRM-specific &struct drm_event delivery mechanism.
116 * read using drm_read(). Can be optional, since nowadays events are
141 * Double-linked list to keep track of this event. Can be used by the
143 * this list entry is owned by the core for its own book-keeping.
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| /linux-6.8/Documentation/PCI/endpoint/ |
| D | pci-ntb-howto.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 PCI Non-Transparent Bridge (NTB) Endpoint Function (EPF) User Guide
9 This document is a guide to help users use pci-epf-ntb function driver
13 Documentation/PCI/endpoint/pci-ntb-function.rst
19 ---------------------------
27 2900000.pcie-ep 2910000.pcie-ep
32 2900000.pcie-ep 2910000.pcie-ep
36 -------------------------
40 # ls /sys/bus/pci-epf/drivers
49 Creating pci-epf-ntb Device
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|
| /linux-6.8/Documentation/arch/powerpc/ |
| D | associativity.rst | 9 are represented as being members of a sub-grouping domain. This performance
17 Hypervisor indicates the type/form of associativity used via "ibm,architecture-vec-5 property".
18 Bit 0 of byte 5 in the "ibm,architecture-vec-5" property indicates usage of Form 0 or Form 1.
20 bit 2 of byte 5 in the "ibm,architecture-vec-5" property is used.
23 ------
27 ------
28 With Form 1 a combination of ibm,associativity-reference-points, and ibm,associativity
34 The “ibm,associativity-reference-points” property contains a list of one or more numbers
39 { primary domainID index, secondary domainID index, tertiary domainID index.. }
41 Linux kernel uses the domainID at the primary domainID index as the NUMA node id.
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| /linux-6.8/drivers/usb/misc/ |
| D | onboard_usb_hub_pdevs.c | 1 // SPDX-License-Identifier: GPL-2.0-only
33 * onboard_hub_create_pdevs -- create platform devices for onboard USB hubs
39 * hub (enable regulators, take the hub out of reset, ...) and can optionally
45 * Some background about the logic in this function, which can be a bit hard
49 * HCD. The primary and secondary HCD are usually represented by a single DT
50 * node. That means the root hubs of the primary and secondary HCD share the
51 * same device tree node (the HCD node). As a result this function can be called
54 * is only executed for the root hub of the primary HCD. Since the function
61 * is called on behalf of the parent hub that is connected to the primary HCD
69 struct usb_hcd *hcd = bus_to_hcd(parent_hub->bus); in onboard_hub_create_pdevs()
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| /linux-6.8/drivers/gpu/drm/sti/ |
| D | sti_compositor.c | 1 // SPDX-License-Identifier: GPL-2.0
52 if (compo->vid[i]) in sti_compositor_debugfs_init()
53 vid_debugfs_init(compo->vid[i], minor); in sti_compositor_debugfs_init()
56 if (compo->mixer[i]) in sti_compositor_debugfs_init()
57 sti_mixer_debugfs_init(compo->mixer[i], minor); in sti_compositor_debugfs_init()
67 struct sti_private *dev_priv = drm_dev->dev_private; in sti_compositor_bind()
69 struct drm_plane *primary = NULL; in sti_compositor_bind() local
70 struct sti_compositor_subdev_descriptor *desc = compo->data.subdev_desc; in sti_compositor_bind()
71 unsigned int array_size = compo->data.nb_subdev; in sti_compositor_bind()
73 dev_priv->compo = compo; in sti_compositor_bind()
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| /linux-6.8/arch/um/drivers/ |
| D | chan_kern.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com)
22 static int not_configged_open(int input, int output, int primary, void *data, in not_configged_open() argument
27 return -ENODEV; in not_configged_open()
40 return -EIO; in not_configged_read()
47 return -EIO; in not_configged_write()
54 return -EIO; in not_configged_console_write()
62 return -ENODEV; in not_configged_window_size()
88 if (chan->opened) in open_one_chan()
91 if (chan->ops->open == NULL) in open_one_chan()
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| /linux-6.8/Documentation/devicetree/bindings/i2c/ |
| D | i2c.txt | 4 This document describes generic bindings which can be used to describe I2C
8 -----------------------------
10 - #address-cells - should be <1>. Read more about addresses below.
11 - #size-cells - should be <0>.
12 - compatible - name of I2C bus controller
21 -----------------------------
26 - clock-frequency
29 - i2c-bus
31 devices and non-I2C devices, the 'i2c-bus' subnode can be used for
32 populating I2C devices. If the 'i2c-bus' subnode is present, only
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| /linux-6.8/drivers/video/ |
| D | aperture.c | 1 // SPDX-License-Identifier: MIT
20 * driver can be active at any given time. Many systems load a generic
21 * graphics drivers, such as EFI-GOP or VESA, early during the boot process.
23 * hardware-specific driver. To take over the device, the dedicated driver
25 * ownership of framebuffer memory and hand-over between drivers.
32 * .. code-block:: c
42 * return -ENODEV;
43 * base = mem->start;
61 * The given example reads the platform device's I/O-memory range from the
65 * output on the framebuffer. If successful, the new driver can take over
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