| /kernel/linux/linux-5.10/drivers/gpu/drm/i915/display/ |
| D | intel_hotplug.c | 31 * DOC: Hotplug
33 * Simply put, hotplug occurs when a display is connected to or disconnected
37 * Hotplug in i915 is handled in many different levels of abstraction.
41 * handlers gather the hotplug detect (HPD) information from relevant registers
42 * into a platform independent mask of hotplug pins that have fired.
45 * intel_hotplug.c does hotplug irq storm detection and mitigation, and passes
47 * regular hotplug).
51 * pulses, with failures and non-MST long pulses triggering regular hotplug
54 * The regular hotplug work function i915_hotplug_work_func() calls connector
55 * detect hooks, and, if connector status changes, triggers sending of hotplug
[all …]
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| /kernel/linux/linux-6.6/drivers/gpu/drm/i915/display/ |
| D | intel_hotplug.c | 33 * DOC: Hotplug
35 * Simply put, hotplug occurs when a display is connected to or disconnected
39 * Hotplug in i915 is handled in many different levels of abstraction.
43 * handlers gather the hotplug detect (HPD) information from relevant registers
44 * into a platform independent mask of hotplug pins that have fired.
47 * intel_hotplug.c does hotplug irq storm detection and mitigation, and passes
49 * regular hotplug).
53 * pulses, with failures and non-MST long pulses triggering regular hotplug
56 * The regular hotplug work function i915_hotplug_work_func() calls connector
57 * detect hooks, and, if connector status changes, triggers sending of hotplug
[all …]
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| D | intel_hotplug_irq.c | 136 struct intel_hotplug *hpd = &dev_priv->display.hotplug; in intel_hpd_init_pins()
182 /* For display hotplug interrupt */
193 * i915_hotplug_interrupt_update - update hotplug interrupt enable
337 * hotplug detection results from several registers.
362 "hotplug event received, stat 0x%08x, dig 0x%08x, pins 0x%08x, long 0x%08x\n", in intel_get_hpd_pins()
373 if (dev_priv->display.hotplug.stats[encoder->hpd_pin].state == HPD_ENABLED) in intel_hpd_enabled_irqs()
395 u32 hotplug = 0; in intel_hpd_hotplug_mask() local
398 hotplug |= hotplug_mask(pin); in intel_hpd_hotplug_mask()
400 return hotplug; in intel_hpd_hotplug_mask()
407 u32 hotplug = 0; in intel_hpd_hotplug_enables() local
[all …]
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| /kernel/linux/linux-6.6/drivers/pci/hotplug/ |
| D | Kconfig | 3 # PCI Hotplug support
7 bool "Support for PCI Hotplug"
11 Say Y here if you have a motherboard with a PCI Hotplug controller.
15 Thunderbolt/USB4 PCIe tunneling depends on native PCIe hotplug.
22 tristate "Compaq PCI Hotplug driver"
25 Say Y here if you have a motherboard with a Compaq PCI Hotplug
37 Say Y here if you have a Compaq server that has a PCI Hotplug
38 controller. This will allow the PCI Hotplug driver to store the PCI
44 tristate "IBM PCI Hotplug driver"
47 Say Y here if you have a motherboard with a IBM PCI Hotplug
[all …]
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| D | pci_hotplug_core.c | 3 * PCI HotPlug Controller Core
72 retval = get_power_status(pci_slot->hotplug, &value); in GET_STATUS()
82 struct hotplug_slot *slot = pci_slot->hotplug; in power_write_file()
129 retval = get_attention_status(pci_slot->hotplug, &value); in attention_read_file()
139 struct hotplug_slot *slot = pci_slot->hotplug; in attention_write_file()
174 retval = get_latch_status(pci_slot->hotplug, &value); in latch_read_file()
191 retval = get_adapter_status(pci_slot->hotplug, &value); in presence_read_file()
206 struct hotplug_slot *slot = pci_slot->hotplug; in test_write_file()
236 struct hotplug_slot *slot = pci_slot->hotplug; in has_power_file()
249 struct hotplug_slot *slot = pci_slot->hotplug; in has_attention_file()
[all …]
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| D | rpadlpar_core.c | 103 * find_php_slot - return hotplug slot structure for device node
106 * This routine will return the hotplug slot structure
196 /* Add hotplug slot */ in dlpar_add_pci_slot()
198 printk(KERN_ERR "%s: unable to add hotplug slot %s\n", in dlpar_add_pci_slot()
214 /* If pci slot is hotpluggable, use hotplug to remove it */ in dlpar_remove_phb()
217 printk(KERN_ERR "%s: unable to remove hotplug slot %s\n", in dlpar_remove_phb()
247 printk(KERN_ERR "%s: unable to add hotplug slot %s\n", in dlpar_add_phb()
277 * Make the hotplug module and the kernel aware of a newly added I/O Slot.
325 * Remove the kernel and hotplug representations of an I/O Slot.
350 * Remove the kernel and hotplug representations of a PCI I/O Slot.
[all …]
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| D | pciehp_pci.c | 25 * pciehp_configure_device() - enumerate PCI devices below a hotplug bridge
26 * @ctrl: PCIe hotplug controller
28 * Enumerate PCI devices below a hotplug bridge and add them to the system.
45 * boot firmware or a previous hotplug event. in pciehp_configure_device()
81 * pciehp_unconfigure_device() - remove PCI devices below a hotplug bridge
82 * @ctrl: PCIe hotplug controller
87 * Unbind PCI devices below a hotplug bridge from their drivers and remove
|
| D | cpcihp_generic.c | 11 * This generic CompactPCI hotplug driver should allow using the PCI hotplug
76 err("Invalid hotplug bus bridge device bus number"); in validate_parameters()
82 err("Invalid hotplug bus bridge device"); in validate_parameters()
88 err("Invalid hotplug bus bridge device slot number"); in validate_parameters()
154 err("Could not register cPCI hotplug controller"); in cpcihp_generic_init()
161 err("Could not register cPCI hotplug bus"); in cpcihp_generic_init()
168 err("Could not started cPCI hotplug system"); in cpcihp_generic_init()
|
| /kernel/linux/linux-5.10/drivers/pci/hotplug/ |
| D | Kconfig | 3 # PCI Hotplug support
7 bool "Support for PCI Hotplug"
10 Say Y here if you have a motherboard with a PCI Hotplug controller.
19 tristate "Compaq PCI Hotplug driver"
22 Say Y here if you have a motherboard with a Compaq PCI Hotplug
34 Say Y here if you have a Compaq server that has a PCI Hotplug
35 controller. This will allow the PCI Hotplug driver to store the PCI
41 tristate "IBM PCI Hotplug driver"
44 Say Y here if you have a motherboard with a IBM PCI Hotplug
53 bool "ACPI PCI Hotplug driver"
[all …]
|
| D | pci_hotplug_core.c | 3 * PCI HotPlug Controller Core
72 retval = get_power_status(pci_slot->hotplug, &value); in GET_STATUS()
82 struct hotplug_slot *slot = pci_slot->hotplug; in power_write_file()
129 retval = get_attention_status(pci_slot->hotplug, &value); in attention_read_file()
139 struct hotplug_slot *slot = pci_slot->hotplug; in attention_write_file()
174 retval = get_latch_status(pci_slot->hotplug, &value); in latch_read_file()
191 retval = get_adapter_status(pci_slot->hotplug, &value); in presence_read_file()
206 struct hotplug_slot *slot = pci_slot->hotplug; in test_write_file()
236 struct hotplug_slot *slot = pci_slot->hotplug; in has_power_file()
249 struct hotplug_slot *slot = pci_slot->hotplug; in has_attention_file()
[all …]
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| D | rpadlpar_core.c | 102 * find_php_slot - return hotplug slot structure for device node
105 * This routine will return the hotplug slot structure
195 /* Add hotplug slot */ in dlpar_add_pci_slot()
197 printk(KERN_ERR "%s: unable to add hotplug slot %s\n", in dlpar_add_pci_slot()
213 /* If pci slot is hotpluggable, use hotplug to remove it */ in dlpar_remove_phb()
216 printk(KERN_ERR "%s: unable to remove hotplug slot %s\n", in dlpar_remove_phb()
246 printk(KERN_ERR "%s: unable to add hotplug slot %s\n", in dlpar_add_phb()
276 * Make the hotplug module and the kernel aware of a newly added I/O Slot.
324 * Remove the kernel and hotplug representations of an I/O Slot.
349 * Remove the kernel and hotplug representations of a PCI I/O Slot.
[all …]
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| D | pciehp_pci.c | 25 * pciehp_configure_device() - enumerate PCI devices below a hotplug bridge
26 * @ctrl: PCIe hotplug controller
28 * Enumerate PCI devices below a hotplug bridge and add them to the system.
45 * boot firmware or a previous hotplug event. in pciehp_configure_device()
81 * pciehp_unconfigure_device() - remove PCI devices below a hotplug bridge
82 * @ctrl: PCIe hotplug controller
87 * Unbind PCI devices below a hotplug bridge from their drivers and remove
|
| D | cpcihp_generic.c | 11 * This generic CompactPCI hotplug driver should allow using the PCI hotplug
76 err("Invalid hotplug bus bridge device bus number"); in validate_parameters()
82 err("Invalid hotplug bus bridge device"); in validate_parameters()
88 err("Invalid hotplug bus bridge device slot number"); in validate_parameters()
154 err("Could not register cPCI hotplug controller"); in cpcihp_generic_init()
161 err("Could not register cPCI hotplug bus"); in cpcihp_generic_init()
168 err("Could not started cPCI hotplug system"); in cpcihp_generic_init()
|
| D | acpi_pcihp.c | 34 /* acpi_run_oshp - get control of hotplug from the firmware
36 * @handle - the handle of the hotplug controller.
64 * @pdev: the pci_dev of the bridge that has a hotplug controller
66 * Attempt to take hotplug control from firmware.
108 * This hotplug controller was not listed in the ACPI name in acpi_get_hp_hw_control_from_firmware()
121 pci_info(pdev, "Requesting control of SHPC hotplug via OSHP (%s)\n", in acpi_get_hp_hw_control_from_firmware()
134 pci_info(pdev, "Cannot get control of SHPC hotplug\n"); in acpi_get_hp_hw_control_from_firmware()
138 pci_info(pdev, "Gained control of SHPC hotplug (%s)\n", in acpi_get_hp_hw_control_from_firmware()
|
| /kernel/linux/linux-5.10/Documentation/admin-guide/mm/ |
| D | memory-hotplug.rst | 4 Memory Hotplug
10 This document is about memory hotplug including how-to-use and current status.
11 Because Memory Hotplug is still under development, contents of this text will
18 (1) x86_64's has special implementation for memory hotplug.
26 Purpose of memory hotplug
29 Memory Hotplug allows users to increase/decrease the amount of memory.
40 Linux memory hotplug is designed for both purpose.
42 Phases of memory hotplug
45 There are 2 phases in Memory Hotplug:
47 1) Physical Memory Hotplug phase
[all …]
|
| /kernel/linux/linux-5.10/Documentation/power/ |
| D | suspend-and-cpuhotplug.rst | 2 Interaction of Suspend code (S3) with the CPU hotplug infrastructure
8 I. Differences between CPU hotplug and Suspend-to-RAM
11 How does the regular CPU hotplug code differ from how the Suspend-to-RAM
17 interactions involving the freezer and CPU hotplug and also tries to explain
21 What happens when regular CPU hotplug and Suspend-to-RAM race with each other
79 Disable regular cpu hotplug
99 | Decrease cpu_hotplug_disabled, thereby enabling regular cpu hotplug
117 Regular CPU hotplug call path
149 regular CPU hotplug]
154 regular CPU hotplug and the suspend code path converge at the _cpu_down() and
[all …]
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| /kernel/linux/linux-6.6/Documentation/power/ |
| D | suspend-and-cpuhotplug.rst | 2 Interaction of Suspend code (S3) with the CPU hotplug infrastructure
8 I. Differences between CPU hotplug and Suspend-to-RAM
11 How does the regular CPU hotplug code differ from how the Suspend-to-RAM
17 interactions involving the freezer and CPU hotplug and also tries to explain
21 What happens when regular CPU hotplug and Suspend-to-RAM race with each other
79 Disable regular cpu hotplug
99 | Decrease cpu_hotplug_disabled, thereby enabling regular cpu hotplug
117 Regular CPU hotplug call path
149 regular CPU hotplug]
154 regular CPU hotplug and the suspend code path converge at the _cpu_down() and
[all …]
|
| /kernel/linux/linux-6.6/Documentation/core-api/ |
| D | cpu_hotplug.rst | 2 CPU hotplug in the Kernel
19 insertion and removal require support for CPU hotplug.
23 system execution path. Hence the need for CPU hotplug support in the
26 A more novel use of CPU-hotplug support is its use today in suspend resume
79 of them may be online. When physical hotplug is processed by the relevant
83 at which time hotplug is disabled.
93 Using CPU hotplug
110 drwxr-xr-x 2 root root 0 Dec 21 16:33 hotplug
131 and excluded from CPU hotplug.
133 The CPU hotplug coordination
[all …]
|
| /kernel/linux/linux-5.10/Documentation/core-api/ |
| D | cpu_hotplug.rst | 2 CPU hotplug in the Kernel
18 insertion and removal require support for CPU hotplug.
22 system execution path. Hence the need for CPU hotplug support in the
25 A more novel use of CPU-hotplug support is its use today in suspend resume
78 of them may be online. When physical hotplug is processed by the relevant
82 at which time hotplug is disabled.
92 Using CPU hotplug
108 drwxr-xr-x 2 root root 0 Dec 21 16:33 hotplug
129 and excluded from CPU hotplug. On X86 the kernel option
140 The CPU hotplug coordination
[all …]
|
| /kernel/linux/linux-6.6/include/linux/ |
| D | pci_hotplug.h | 3 * PCI HotPlug Core Functions
18 * struct hotplug_slot_ops -the callbacks that the hotplug pci core can use
31 * hotplug events or where a slot can be reset independent of the bus.
33 * The table of function pointers that is passed to the hotplug pci core by a
34 * hotplug pci driver. These functions are called by the hotplug pci core when
51 * struct hotplug_slot - used to register a physical slot with the hotplug pci core
53 * @slot_list: internal list used to track hotplug PCI slots
61 /* Variables below this are for use only by the hotplug pci core. */
|
| D | cpuhotplug.h | 26 * CPU hotplug states. The state machine invokes the installed state
38 * hotplug startup/teardown code with interrupts disabled.
41 * hotplug thread with interrupts and preemption enabled.
206 /* Online section invoked on the hotplugged CPU from the hotplug thread */
276 * cpuhp_setup_state - Setup hotplug state callbacks with calling the @startup
295 * cpuhp_setup_state_cpuslocked - Setup hotplug state callbacks with calling
316 * cpuhp_setup_state_nocalls - Setup hotplug state callbacks without calling the
336 * cpuhp_setup_state_nocalls_cpuslocked - Setup hotplug state callbacks without
441 * cpuhp_remove_state - Remove hotplug state callbacks and invoke the teardown
453 * cpuhp_remove_state_nocalls - Remove hotplug state callbacks without invoking
[all …]
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| /kernel/linux/linux-5.10/include/linux/ |
| D | pci_hotplug.h | 3 * PCI HotPlug Core Functions
18 * struct hotplug_slot_ops -the callbacks that the hotplug pci core can use
31 * hotplug events or where a slot can be reset independent of the bus.
33 * The table of function pointers that is passed to the hotplug pci core by a
34 * hotplug pci driver. These functions are called by the hotplug pci core when
51 * struct hotplug_slot - used to register a physical slot with the hotplug pci core
59 /* Variables below this are for use only by the hotplug pci core. */
|
| /kernel/linux/linux-5.10/kernel/ |
| D | cpu.c | 12 #include <linux/sched/hotplug.h>
46 * cpuhp_cpu_state - Per cpu hotplug state storage
49 * @thread: Pointer to the hotplug thread
110 * cpuhp_step - Hotplug state machine step
149 * Called from cpu hotplug and from the state register machinery.
325 * We can't have hotplug operations before userspace starts running, in lockdep_assert_cpus_held()
326 * and some init codepaths will knowingly not take the hotplug lock. in lockdep_assert_cpus_held()
347 * Wait for currently running CPU hotplug operations to complete (if any) and
348 * disable future CPU hotplug (from sysfs). The 'cpu_add_remove_lock' protects
350 * hotplug path before performing hotplug operations. So acquiring that lock
[all …]
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| /kernel/linux/linux-6.6/include/linux/platform_data/ |
| D | mlxreg.h | 28 * enum mlxreg_hotplug_kind - kind of hotplug entry
57 * enum mlxreg_hotplug_device_action - hotplug device action required for
73 * struct mlxreg_core_hotplug_notifier - hotplug notifier block:
98 * Structure represents I2C hotplug device static data (board topology) and
127 * @hpdev - hotplug device data;
160 * @kind: kind of hotplug attribute;
207 * struct mlxreg_core_hotplug_platform_data - hotplug platform data:
209 * @items: same type components with the hotplug capability;
212 * @counter: number of the components with the hotplug capability;
|
| /kernel/linux/linux-6.6/Documentation/driver-api/usb/ |
| D | hotplug.rst | 38 Kernel Hotplug Helper (``/sbin/hotplug``)
41 There is a kernel parameter: ``/proc/sys/kernel/hotplug``, which normally
42 holds the pathname ``/sbin/hotplug``. That parameter names a program
45 The /sbin/hotplug program can be invoked by any subsystem as part of its
52 Hotplug software and other resources is available at:
54 http://linux-hotplug.sourceforge.net
62 The USB subsystem currently invokes ``/sbin/hotplug`` when USB devices
|