| /linux/drivers/leds/ |
| H A D | leds-lp55xx-common.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
9 * Derived from leds-lp5521.c, leds-lp5523.c
15 #include <linux/led-class-multicolor.h>
53 static LP55XX_DEV_ATTR_RW(engine##nr##_mode, show_engine##nr##_mode, \
69 static LP55XX_DEV_ATTR_RW(engine##nr##_leds, show_engine##nr##_leds, \
79 static LP55XX_DEV_ATTR_WO(engine##nr##_load, store_engine##nr##_load)
116 * @reg_op_mode : Chip specific OP MODE reg addr
117 * @engine_busy : Chip specific engine busy
119 * @reset : Chip specific reset command
120 * @enable : Chip specific enable command
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| /linux/Documentation/driver-api/dmaengine/ |
| H A D | client.rst | 2 DMA Engine API Guide
7 .. note:: For DMA Engine usage in async_tx please see:
8 ``Documentation/crypto/async-tx-api.rst``
11 Below is a guide to device driver writers on how to use the Slave-DMA API of the
12 DMA Engine. This is applicable only for slave DMA usage only.
19 - Allocate a DMA slave channel
21 - Set slave and controller specific parameters
23 - Get a descriptor for transaction
25 - Submit the transaction
27 - Issue pending requests and wait for callback notification
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| /linux/Documentation/devicetree/bindings/fsi/ |
| H A D | fsi.txt | 1 FSI bus & engine generic device tree bindings
4 The FSI bus is probe-able, so the OS is able to enumerate FSI slaves, and
6 nodes to probed engines. This allows for fsi engines to expose non-probeable
7 busses, which are then exposed by the device tree. For example, an FSI engine
8 that is an I2C master - the I2C bus can be described by the device tree under
9 the engine's device tree node.
13 the fsi-master-* binding specifications.
18 fsi-master {
19 /* top-level of FSI bus topology, bound to an FSI master driver and
22 fsi-slave@<link,id> {
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| /linux/drivers/gpu/drm/i915/gt/ |
| H A D | intel_engine_heartbeat.c | 1 // SPDX-License-Identifier: MIT
20 * While the engine is active, we send a periodic pulse along the engine
21 * to check on its health and to flush any idle-barriers. If that request
22 * is stuck, and we fail to preempt it, we declare the engine hung and
23 * issue a reset -- in the hope that restores progress.
26 static bool next_heartbeat(struct intel_engine_cs *engine) in next_heartbeat() argument
31 delay = READ_ONCE(engine->props.heartbeat_interval_ms); in next_heartbeat()
33 rq = engine->heartbeat.systole; in next_heartbeat()
38 * selftests which override the value and expect specific behaviour. in next_heartbeat()
40 * heartbeat periods (or to override the pre-emption timeout as well, in next_heartbeat()
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| H A D | intel_gt.h | 1 /* SPDX-License-Identifier: MIT */
23 ((gt)->type != GT_MEDIA && \
24 GRAPHICS_VER_FULL((gt)->i915) >= (from) && \
25 GRAPHICS_VER_FULL((gt)->i915) <= (until)))
37 ((gt) && (gt)->type == GT_MEDIA && \
38 MEDIA_VER_FULL((gt)->i915) >= (from) && \
39 MEDIA_VER_FULL((gt)->i915) <= (until)))
42 * Check that the GT is a graphics GT with a specific IP version and has
44 * inclusive, the upper bound is exclusive. The most common use-case of this
59 IS_GRAPHICS_STEP((gt)->i915, (from), (until))))
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| /linux/drivers/dma/amd/ptdma/ |
| H A D | ptdma.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * -- Based on the CCP driver
25 #include "../../virt-dma.h"
94 #define QUEUE_SIZE_VAL ((ffs(CMD_Q_LEN) - 2) & \
96 #define Q_PTR_MASK (2 << (QUEUE_SIZE_VAL + 5) - 1)
109 #define LSB_COUNT (LSB_END - LSB_START + 1)
124 * struct pt_passthru_engine - pass-through operation
133 * - bit_mod, byte_swap, src, dst, src_len
134 * - mask, mask_len if bit_mod is not PT_PASSTHRU_BITWISE_NOOP
145 * struct pt_cmd - PTDMA operation request
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| /linux/drivers/net/ethernet/hisilicon/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
16 for your specific card in the following questions.
36 ports at 10/100 Mbps in full-duplex or half-duplex mode.
71 is needed by any driver which provides HNS acceleration engine or make
72 use of the engine
80 acceleration engine support. The engine is used in Hisilicon hip05,
98 This layer facilitates clients like ENET, RoCE and user-space ethernet
105 tristate "Hisilicon HNS3 HCLGE Acceleration Engine & Compatibility Layer Support"
110 This selects the HNS3_HCLGE network acceleration engine & its hardware
111 compatibility layer. The engine would be used in Hisilicon hip08 family of
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| /linux/Documentation/leds/ |
| H A D | leds-lp5562.rst | 15 All four channels can be also controlled using the engine micro programs.
17 For the details, please refer to 'firmware' section in leds-lp55xx.txt
24 Therefore each channel should be mapped to the engine number.
29 Unlike the LP5521/LP5523/55231, LP5562 has unique feature for the engine mux,
35 Red ... Engine 1 (fixed)
36 Green ... Engine 2 (fixed)
37 Blue ... Engine 3 (fixed)
38 White ... Engine 1 or 2 or 3 (selective)
45 the engine selection and loading the firmware.
46 Engine mux has two different mode, RGB and W.
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| /linux/Documentation/driver-api/rapidio/ |
| H A D | mport_cdev.rst | 17 for user-space applications. Most of RapidIO operations are supported through
24 Using available set of ioctl commands user-space applications can perform
27 - Reads and writes from/to configuration registers of mport devices
29 - Reads and writes from/to configuration registers of remote RapidIO devices.
32 - Set RapidIO Destination ID for mport devices (RIO_MPORT_MAINT_HDID_SET)
33 - Set RapidIO Component Tag for mport devices (RIO_MPORT_MAINT_COMPTAG_SET)
34 - Query logical index of mport devices (RIO_MPORT_MAINT_PORT_IDX_GET)
35 - Query capabilities and RapidIO link configuration of mport devices
37 - Enable/Disable reporting of RapidIO doorbell events to user-space applications
39 - Enable/Disable reporting of RIO port-write events to user-space applications
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| /linux/drivers/gpu/drm/arm/ |
| H A D | malidp_regs.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
14 * - DC - display core (general settings)
15 * - DE - display engine
16 * - SE - scaling engine
113 /* Scaling engine registers and masks. */
170 /* register offsets and bits specific to DP500 */
194 #define MALIDP500_LV_YUV2RGB ((s16)(-0xB8))
218 * - RED_ARQOS @ A 4-bit signal value for close to underflow conditions
219 * - GREEN_ARQOS @ A 4-bit signal value for normal conditions
223 /* register offsets and bits specific to DP550/DP650 */
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| /linux/drivers/gpu/drm/xe/ |
| H A D | xe_rtp.h | 1 /* SPDX-License-Identifier: MIT */
29 * Shouldn't be used directly - see XE_RTP_RULES()
55 * XE_RTP_RULE_PLATFORM - Create rule matching platform
64 * XE_RTP_RULE_SUBPLATFORM - Create rule matching platform and sub-platform
66 * @sub_: sub-platform to match
74 * XE_RTP_RULE_PLATFORM_STEP - Create rule matching platform-level stepping
81 * You need to make sure that proper support for reading platform-level stepping
90 * XE_RTP_RULE_GRAPHICS_STEP - Create rule matching graphics stepping
103 * XE_RTP_RULE_MEDIA_STEP - Create rule matching media stepping
116 * XE_RTP_RULE_ENGINE_CLASS - Create rule matching an engine class
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| H A D | xe_pmu.c | 1 // SPDX-License-Identifier: MIT
22 * Expose events/counters like GT-C6 residency, GT frequency and per-class-engine
27 * $ ls -ld /sys/bus/event_source/devices/xe_*
35 * engine_class[20:27] Selects engine-class for event
36 * engine_instance[12:19] Selects the engine-instance for the event
39 * For engine specific events (engine-*), gt, engine_class and engine_instance parameters must be
42 * For gt specific events (gt-*) gt parameter must be passed. All other parameters will be 0.
47 * $ perf list | grep gt-c6
49 * To sample a specific event for a GT at regular intervals:
51 * $ perf stat -e <event_name,gt=> -I <interval>
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| /linux/include/linux/ |
| H A D | hil_mlc.h | 14 * derived from this software without specific prior written permission.
30 * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
43 /* The HIL has a complicated state engine.
44 * We define the structure of nodes in the state engine here.
70 /* HILSE_IN simply expects any non-errored packet to arrive
104 /* Methods for back-end drivers, e.g. hp_sdc_mlc */
130 void *priv; /* Data specific to a particular type of MLC */
132 int seidx; /* Current node in state engine */
|
| H A D | ccp.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
27 * ccp_present - check if a CCP device is present
29 * Returns zero if a CCP device is present, -ENODEV otherwise.
34 #define CCP_VMASK ((unsigned int)((1 << CCP_VSIZE) - 1))
39 * ccp_version - get the version of the CCP
46 * ccp_enqueue_cmd - queue an operation for processing by the CCP
55 * result in a return code of -EBUSY.
61 * will be -EINPROGRESS. Any other "err" value during callback is
65 * the return code is -EINPROGRESS or
66 * the return code is -EBUSY and CCP_CMD_MAY_BACKLOG flag is set
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| /linux/drivers/gpu/drm/i915/ |
| H A D | i915_perf_types.h | 1 /* SPDX-License-Identifier: MIT */
101 * struct i915_perf_stream_ops - the OPs to support a specific stream type
144 * Only write complete records; returning -%ENOSPC if there isn't room
148 * -%ENOSPC or -%EFAULT, even though these may be squashed before
157 * @destroy: Cleanup any stream specific resources.
165 * struct i915_perf_stream - state for a single open stream FD
179 * @engine: Engine associated with this performance stream.
181 struct intel_engine_cs *engine; member
203 * @ctx: %NULL if measuring system-wide across all contexts or a
204 * specific context that is being monitored.
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| H A D | i915_scheduler_types.h | 2 * SPDX-License-Identifier: MIT
36 * actually, from a nonlinear, non-subjective viewpoint, it's more like a big
37 * ball of wibbly-wobbly, timey-wimey ... stuff." -The Doctor, 2015
54 * We let a new context run for a small amount of time before re-evaluating
55 * the run order. As we re-evaluate, we maintain the strict ordering of
86 &(rq__)->sched.waiters_list, \
91 &(rq__)->sched.signalers_list, \
95 * struct i915_sched_engine - scheduler engine
97 * A schedule engine represents a submission queue with different priority
101 * This object at the moment is quite i915 specific but will transition into a
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| /linux/include/uapi/drm/ |
| H A D | i915_drm.h | 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
37 * subject to backwards-compatibility constraints.
43 * I915_L3_PARITY_UEVENT - Generated when the driver receives a parity mismatch
46 * track of these events, and if a specific cache-line seems to have a
48 * intel-gpu-tools. The value supplied with the event is always 1.
50 * I915_ERROR_UEVENT - Generated upon error detection, currently only via
57 * I915_RESET_UEVENT - Event is generated just before an attempt to reset the
66 * struct i915_user_extension - Base class for defining a chain of extensions
82 * .. code-block:: C
115 * driver, but rather its scope/meaning is limited to the specific piece
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| H A D | habanalabs_accel.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
3 * Copyright 2016-2023 HabanaLabs, Ltd.
14 * Defines that are asic-specific but constitutes as ABI between kernel driver
195 * stream id is a running number from 0 up to (N-1), where N is the number
466 * Engine Numbering
607 * ASIC specific PLL index
656 * enum hl_goya_dma_direction - Direction of DMA operation inside a LIN_DMA packet that is
683 * enum hl_device_status - Device status information.
715 * Notifier event values - for the notification mechanism and the HL_INFO_GET_EVENTS command
717 * HL_NOTIFIER_EVENT_TPC_ASSERT - Indicates TPC assert event
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| /linux/tools/include/uapi/drm/ |
| H A D | i915_drm.h | |
| /linux/Documentation/userspace-api/media/drivers/ |
| H A D | npcm-video.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 This driver is used to control the Video Capture/Differentiation (VCD) engine
9 and Encoding Compression Engine (ECE) present on Nuvoton NPCM SoCs. The VCD can
13 Driver-specific Controls
14 ------------------------
19 The VCD engine supports two modes:
21 - COMPLETE mode:
25 - DIFF mode:
33 - ``V4L2_NPCM_CAPTURE_MODE_COMPLETE``: will set VCD to COMPLETE mode.
34 - ``V4L2_NPCM_CAPTURE_MODE_DIFF``: will set VCD to DIFF mode.
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| /linux/drivers/gpu/drm/nouveau/nvkm/engine/gr/ |
| H A D | priv.h | 1 /* SPDX-License-Identifier: MIT */
4 #define nvkm_gr(p) container_of((p), struct nvkm_gr, engine)
5 #include <engine/gr.h>
28 /* Returns chipset-specific counts of units packed into an u64.
|
| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-driver-chromeos-acpi | 32 Returns switch position for Chrome OS specific hardware
56 Returns firmware version for the read-only portion of the
72 Returns type of the GPIO signal for the Chrome OS specific
121 Returns the SHA-1 or SHA-256 hash that is read out of the
122 Management Engine extended registers during boot. The hash
124 Engine firmware has not changed. If Management Engine is not
132 Returns offset in CMOS bank 0 of the verified boot non-volatile
142 Return the size in bytes of the verified boot non-volatile
|
| /linux/Documentation/firmware-guide/acpi/ |
| H A D | chromeos-acpi-device.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 Hardware functionality specific to Chrome OS is exposed through a Chrome OS ACPI device.
11 .. flat-table:: Supported ACPI Objects
13 :header-rows: 1
15 * - Object
16 - Description
18 * - CHSW
19 - Chrome OS switch positions
21 * - HWID
22 - Chrome OS hardware ID
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| /linux/drivers/accel/habanalabs/common/ |
| H A D | state_dump.c | 1 // SPDX-License-Identifier: GPL-2.0
13 * hl_format_as_binary - helper function, format an integer as binary
37 buf_len -= 3; in hl_format_as_binary()
43 bit = n & (1 << (sizeof(n) * BITS_PER_BYTE - 1)); in hl_format_as_binary()
58 * resize_to_fit - helper function, resize buffer to fit given amount of data
79 return -ENOMEM; in resize_to_fit()
89 * hl_snprintf_resize() - print formatted data to buffer, resize as needed
113 return -EINVAL; in hl_snprintf_resize()
116 length = vsnprintf(*buf + *offset, *size - *offset, format, args); in hl_snprintf_resize()
125 length = vsnprintf(*buf + *offset, *size - *offset, format, in hl_snprintf_resize()
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| /linux/drivers/rapidio/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
38 bool "DMA Engine support for RapidIO"
43 Say Y here if you want to use DMA Engine frameork for RapidIO data
74 provides socket-like interface to allow sharing of single RapidIO
75 messaging mailbox between multiple user-space applications.
76 See "Documentation/driver-api/rapidio/rio_cm.rst" for driver description.
83 allows to user space applications to perform RapidIO-specific
|