| /openbmc/linux/Documentation/usb/ |
| H A D | ohci.rst | 5 23-Aug-2002
7 The "ohci-hcd" driver is a USB Host Controller Driver (HCD) that is derived
8 from the "usb-ohci" driver from the 2.4 kernel series. The "usb-ohci" code
20 - improved robustness; bugfixes; and less overhead
21 - supports the updated and simplified usbcore APIs
22 - interrupt transfers can be larger, and can be queued
23 - less code, by using the upper level "hcd" framework
24 - supports some non-PCI implementations of OHCI
25 - ... more
27 The "ohci-hcd" driver handles all USB 1.1 transfer types. Transfers of all
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| H A D | ehci.rst | 5 27-Dec-2002
8 USB 2.0-capable host controller hardware. The USB 2.0 standard is
11 - "High Speed" 480 Mbit/sec (60 MByte/sec)
12 - "Full Speed" 12 Mbit/sec (1.5 MByte/sec)
13 - "Low Speed" 1.5 Mbit/sec
31 While usb-storage devices have been available since mid-2001 (working
34 appear to be on hold until more systems come with USB 2.0 built-in.
39 other changes to the Linux-USB core APIs, including the hub driver,
43 - David Brownell
56 --------------
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| /openbmc/linux/drivers/gpu/drm/kmb/ |
| H A D | kmb_crtc.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright © 2018-2020 Intel Corporation
31 struct drm_device *dev = crtc->dev; in kmb_crtc_enable_vblank()
34 /* Clear interrupt */ in kmb_crtc_enable_vblank()
36 /* Set which interval to generate vertical interrupt */ in kmb_crtc_enable_vblank()
39 /* Enable vertical interrupt */ in kmb_crtc_enable_vblank()
47 struct drm_device *dev = crtc->dev; in kmb_crtc_disable_vblank()
50 /* Clear interrupt */ in kmb_crtc_disable_vblank()
52 /* Disable vertical interrupt */ in kmb_crtc_disable_vblank()
71 struct drm_device *dev = crtc->dev; in kmb_crtc_set_mode()
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| /openbmc/linux/tools/perf/pmu-events/arch/x86/graniterapids/ |
| H A D | pipeline.json | 21 …less than MAX. The reset value to the counter is not clocked immediately so the overflow status bi…
29 …less than MAX. The reset value to the counter is not clocked immediately so the overflow status bi…
48 "BriefDescription": "Number of instructions retired. Fixed Counter - architectural event",
51 … instructions retired - an Architectural PerfMon event. Counting continues during hardware interru…
56 "BriefDescription": "Number of instructions retired. General Counter - architectural event",
60 … instructions retired - an Architectural PerfMon event. Counting continues during hardware interru…
72 … the Topdown Slots event that were not consumed by the back-end pipeline due to lack of back-end r…
75 …-end pipeline due to lack of back-end resources, as a result of memory subsystem delays, execution…
80 …"BriefDescription": "TMA slots available for an unhalted logical processor. Fixed counter - archit…
82 …-width of the narrowest pipeline as employed by the Top-down Microarchitecture Analysis method (TM…
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| /openbmc/linux/Documentation/devicetree/bindings/interrupt-controller/ |
| H A D | cirrus,clps711x-intc.txt | 1 Cirrus Logic CLPS711X Interrupt Controller
5 - compatible: Should be "cirrus,ep7209-intc".
6 - reg: Specifies base physical address of the registers set.
7 - interrupt-controller: Identifies the node as an interrupt controller.
8 - #interrupt-cells: Specifies the number of cells needed to encode an
9 interrupt source. The value shall be 1.
11 The interrupt sources are as follows:
13 ---------------------------
30 18: SS2TX SSI2 transmit FIFO less than half empty
36 intc: interrupt-controller {
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| /openbmc/linux/Documentation/devicetree/bindings/iio/light/ |
| H A D | ti,opt3001.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andreas Dannenberg <dannenberg@ti.com>
13 The device supports interrupt-driven and interrupt-less operation, depending
14 on whether an interrupt property has been populated into the DT.
30 - compatible
31 - reg
34 - |
35 #include <dt-bindings/interrupt-controller/irq.h>
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| /openbmc/linux/arch/x86/include/asm/ |
| H A D | hpet.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
59 * Min HPET period is 10^5 femto sec just for safety. If it is less than this,
60 * then 32 bit HPET counter wrapsaround in less than 0.5 sec.
79 #include <linux/interrupt.h>
81 typedef irqreturn_t (*rtc_irq_handler)(int interrupt, void *cookie);
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| /openbmc/linux/Documentation/devicetree/bindings/memory-controllers/ |
| H A D | rockchip,rk3399-dmc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/rockchip,rk3399-dmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Brian Norris <briannorris@chromium.org>
15 - rockchip,rk3399-dmc
17 devfreq-events:
21 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt.
26 clock-names:
28 - const: dmc_clk
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| /openbmc/linux/drivers/misc/cxl/ |
| H A D | hcalls.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
26 * The 'flags' parameter regroups the various bit-fields
59 * cxl_h_detach_process - Detach a process element from a coherent
65 * cxl_h_reset_afu - Perform a reset to the coherent platform function.
70 * cxl_h_suspend_process - Suspend a process from being executed
71 * Parameter1 = process-token as returned from H_ATTACH_CA_PROCESS when
77 * cxl_h_resume_process - Resume a process to be executed
78 * Parameter1 = process-token as returned from H_ATTACH_CA_PROCESS when
84 * cxl_h_read_error_state - Reads the error state of the coherent
91 * cxl_h_get_afu_err - collect the AFU error buffer
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| /openbmc/linux/Documentation/devicetree/bindings/net/can/ |
| H A D | tcan4x5x.txt | 7 - compatible:
11 - reg: 0
12 - #address-cells: 1
13 - #size-cells: 0
14 - spi-max-frequency: Maximum frequency of the SPI bus the chip can
15 operate at should be less than or equal to 18 MHz.
16 - interrupt-parent: the phandle to the interrupt controller which provides
17 the interrupt.
18 - interrupts: interrupt specification for data-ready.
24 - reset-gpios: Hardwired output GPIO. If not defined then software
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| H A D | microchip,mcp251xfd.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Microchip MCP2517FD, MCP2518FD and MCP251863 stand-alone CAN controller
10 - Marc Kleine-Budde <mkl@pengutronix.de>
13 - $ref: can-controller.yaml#
18 - enum:
19 - microchip,mcp2517fd
20 - microchip,mcp2518fd
21 - microchip,mcp251xfd
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| /openbmc/linux/include/linux/ |
| H A D | rbtree_latch.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Latched RB-trees
7 * Since RB-trees have non-atomic modifications they're not immediately suited
8 * for RCU/lockless queries. Even though we made RB-tree lookups non-fatal for
11 * The simplest solution is a seqlock + RB-tree, this will allow lockless
17 * employing the latch technique -- see @raw_write_seqcount_latch -- to
18 * implement a latched RB-tree which does allow for unconditional lookups by
26 * Therefore, this does require a lockless RB-tree iteration to be non-fatal;
28 * condition -- not seeing partial stores -- because the latch thing isolates
29 * us from loops. If we were to interrupt a modification the lookup would be
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| /openbmc/linux/drivers/media/rc/img-ir/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
17 less reliable (due to lack of timestamps) and consumes more
26 signals in hardware. This is more reliable, consumes less processing
27 power since only a single interrupt is received for each scancode,
35 Say Y here to enable support for the NEC, extended NEC, and 32-bit
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| /openbmc/linux/Documentation/admin-guide/blockdev/ |
| H A D | floppy.rst | 19 Example: If your kernel is called linux-2.6.9, type the following line
22 linux-2.6.9 floppy=thinkpad
25 of linux-2.6.9::
31 linux-2.6.9 floppy=daring floppy=two_fdc
96 and is thus harder to find, whereas non-dma buffers may be
104 If you have a FIFO-able FDC, the floppy driver automatically
105 falls back on non DMA mode if no DMA-able memory can be found.
123 interrupt latency, but it triggers more interrupts (i.e. it
125 lower, the interrupt latency should be lower too (faster
126 processor). The benefit of a lower threshold is less
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| /openbmc/linux/Documentation/virt/kvm/ |
| H A D | vcpu-requests.rst | 1 .. SPDX-License-Identifier: GPL-2.0
46 ----------
64 ---------
66 VCPUs have a mode state, ``vcpu->mode``, that is used to track whether the
68 outside guest mode states. The architecture may use ``vcpu->mode`` to
96 VCPU requests are simply bit indices of the ``vcpu->requests`` bitmap.
97 This means general bitops, like those documented in [atomic-ops]_ could
100 clear_bit(KVM_REQ_UNBLOCK & KVM_REQUEST_MASK, &vcpu->requests);
108 ---------------------------------
126 or in order to update the interrupt routing and ensure that assigned
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| /openbmc/linux/sound/soc/sof/xtensa/ |
| H A D | core.c | 1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
14 #include "../sof-priv.h"
23 * From 4.4.1.5 table 4-64 Exception Causes of Xtensa
34 "Level-1 interrupt as indicated by set level-1 bits in the INTERRUPT register"},
54 "An instruction fetch referenced a virtual address at a ring level less than CRING"},
62 "A load or store referenced a virtual address at a ring level less than CRING"},
89 dev_printk(level, sdev->dev, "error: DSP Firmware Oops\n"); in xtensa_dsp_oops()
91 if (xtensa_exception_causes[i].id == xoops->exccause) { in xtensa_dsp_oops()
92 dev_printk(level, sdev->dev, in xtensa_dsp_oops()
98 dev_printk(level, sdev->dev, in xtensa_dsp_oops()
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| /openbmc/linux/arch/powerpc/kvm/ |
| H A D | book3s_hv_rm_xics.c | 1 // SPDX-License-Identifier: GPL-2.0-only
19 #include <asm/ppc-opcode.h>
20 #include <asm/pnv-pci.h>
37 /* -- ICS routines -- */
44 struct ics_irq_state *state = &ics->irq_state[i]; in ics_rm_check_resend()
45 if (state->resend) in ics_rm_check_resend()
46 icp_rm_deliver_irq(xics, icp, state->number, true); in ics_rm_check_resend()
51 /* -- ICP routines -- */
59 kvmppc_host_rm_ops_hv->rm_core[hcore].rm_data = vcpu; in icp_send_hcore_msg()
78 * Returns -1, if no CPU could be found in the host
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| H A D | book3s_xics.c | 1 // SPDX-License-Identifier: GPL-2.0-only
40 * sources and avoiding simultaneous deliveries of the same interrupt.
50 * - To speed up resends, keep a bitmap of "resend" set bits in the
53 * - Speed up server# -> ICP lookup (array ? hash table ?)
55 * - Make ICS lockless as well, or at least a per-interrupt lock or hashed
59 /* -- ICS routines -- */
65 * Return value ideally indicates how the interrupt was handled, but no
81 return -EINVAL; in ics_deliver_irq()
83 state = &ics->irq_state[src]; in ics_deliver_irq()
84 if (!state->exists) in ics_deliver_irq()
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| /openbmc/linux/Documentation/devicetree/bindings/gpio/ |
| H A D | sprd,gpio-eic.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/gpio/sprd,gpio-eic.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Orson Zhai <orsonzhai@gmail.com>
12 - Baolin Wang <baolin.wang7@gmail.com>
13 - Chunyan Zhang <zhang.lyra@gmail.com>
16 The EIC is the abbreviation of external interrupt controller, which can
19 controller contains 4 sub-modules, i.e. EIC-debounce, EIC-latch, EIC-async and
20 EIC-sync. But the PMIC EIC controller contains only one EIC-debounce sub-
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| /openbmc/linux/Documentation/devicetree/bindings/display/hisilicon/ |
| H A D | hisi-ade.txt | 1 Device-Tree bindings for hisilicon ADE display controller driver
8 - compatible: value should be "hisilicon,hi6220-ade".
9 - reg: physical base address and length of the ADE controller's registers.
10 - hisilicon,noc-syscon: ADE NOC QoS syscon.
11 - resets: The ADE reset controller node.
12 - interrupt: the ldi vblank interrupt number used.
13 - clocks: a list of phandle + clock-specifier pairs, one for each entry
14 in clock-names.
15 - clock-names: should contain:
20 - assigned-clocks: Should contain "clk_ade_core" and "clk_codec_jpeg" clocks'
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| /openbmc/linux/Documentation/devicetree/bindings/iio/adc/ |
| H A D | ti,adc12138.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments ADC12138 and similar self-calibrating ADCs
10 - Akinobu Mita <akinobu.mita@gmail.com>
19 - ti,adc12130
20 - ti,adc12132
21 - ti,adc12138
28 description: End of Conversion (EOC) interrupt
34 vref-p-supply:
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| /openbmc/linux/include/linux/input/ |
| H A D | adxl34x.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
101 * activity_threshold the device will trigger an activity interrupt. In
109 * considered inactive and the inactivity interrupt is triggered.
128 * Activity interrupt is enabled.
138 * behavior if Inactivity interrupt is enabled.
148 * is 1 second/LSB. Unlike the other interrupt functions, which
151 * generated for the inactivity interrupt to be triggered. This will
152 * result in the function appearing un-responsive if the
153 * inactivity_time register is set with a value less than the time
155 * interrupt when the output data is below inactivity_threshold.
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| /openbmc/linux/drivers/gpu/drm/i915/gt/ |
| H A D | intel_rps_types.h | 1 /* SPDX-License-Identifier: MIT */
41 * struct intel_rps_freq_caps - rps freq capabilities
42 * @rp0_freq: non-overclocked max frequency
43 * @rp1_freq: "less than" RP0 power/freqency
60 * i915->irq_lock
70 /* PM interrupt bits that should never be masked */
92 u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
93 u8 rp1_freq; /* "less than" RP0 power/freqency */
94 u8 rp0_freq; /* Non-overclocked max frequency. */
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| /openbmc/linux/Documentation/devicetree/bindings/mfd/ |
| H A D | omap-usb-tll.txt | 1 OMAP HS USB Host TLL (Transceiver-Less Interface)
5 - compatible : should be "ti,usbhs-tll"
6 - reg : should contain one register range i.e. start and length
7 - interrupts : should contain the TLL module's interrupt
8 - ti,hwmod : must contain "usb_tll_hs"
12 - clocks: a list of phandles and clock-specifier pairs, one for each entry in
13 clock-names.
15 - clock-names: should include:
16 * "usb_tll_hs_usb_ch0_clk" - USB TLL channel 0 clock
17 * "usb_tll_hs_usb_ch1_clk" - USB TLL channel 1 clock
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| /openbmc/linux/sound/pci/lx6464es/ |
| H A D | lx_core.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* -*- linux-c -*- *
5 * low-level interface
13 #include <linux/interrupt.h>
21 /* low-level register access */
96 /* low-level dsp access */
104 /* low-level pipe handling */
118 /* low-level stream handling */
132 snd_printdd("->lx_stream_start\n"); in lx_stream_start()
139 snd_printdd("->lx_stream_pause\n"); in lx_stream_pause()
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