/openbmc/linux/tools/perf/pmu-events/arch/x86/rocketlake/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 …"PublicDescription": "Counts the number of times the front-end is resteered when it finds a branch… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 19 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE transitions count.", 24 …"PublicDescription": "Counts the number of Decode Stream Buffer (DSB a.k.a. Uop Cache)-to-MITE spe… 29 "BriefDescription": "DSB-to-MITE switch true penalty cycles.", 32 …"PublicDescription": "Decode Stream Buffer (DSB) is a Uop-cache that holds translations of previou… 43 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 54 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 92 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/tigerlake/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 …"PublicDescription": "Counts the number of times the front-end is resteered when it finds a branch… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 19 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE transitions count.", 24 …"PublicDescription": "Counts the number of Decode Stream Buffer (DSB a.k.a. Uop Cache)-to-MITE spe… 29 "BriefDescription": "DSB-to-MITE switch true penalty cycles.", 32 …"PublicDescription": "Decode Stream Buffer (DSB) is a Uop-cache that holds translations of previou… 43 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 54 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 92 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/icelake/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 …"PublicDescription": "Counts the number of times the front-end is resteered when it finds a branch… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 19 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE transitions count.", 24 …"PublicDescription": "Counts the number of Decode Stream Buffer (DSB a.k.a. Uop Cache)-to-MITE spe… 29 "BriefDescription": "DSB-to-MITE switch true penalty cycles.", 32 …"PublicDescription": "Decode Stream Buffer (DSB) is a Uop-cache that holds translations of previou… 43 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 54 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 92 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/icelakex/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 …"PublicDescription": "Counts the number of times the front-end is resteered when it finds a branch… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 19 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE transitions count.", 24 …"PublicDescription": "Counts the number of Decode Stream Buffer (DSB a.k.a. Uop Cache)-to-MITE spe… 29 "BriefDescription": "DSB-to-MITE switch true penalty cycles.", 32 …"PublicDescription": "Decode Stream Buffer (DSB) is a Uop-cache that holds translations of previou… 43 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 54 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 92 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/sapphirerapids/ |
H A D | frontend.json | 6 …"PublicDescription": "Number of times the front-end is resteered when it finds a branch instructio… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 26 "BriefDescription": "DSB-to-MITE switch true penalty cycles.", 29 …"PublicDescription": "Decode Stream Buffer (DSB) is a Uop-cache that holds translations of previou… 40 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 51 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 89 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", 95 …ter an interval where the front-end delivered no uops for a period of at least 1 cycle which was n… 100 … after an interval where the front-end delivered no uops for a period of 128 cycles which was not … 106 … after an interval where the front-end delivered no uops for a period of 128 cycles which was not … [all …]
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/openbmc/qemu/docs/interop/ |
H A D | vhost-user.rst | 4 Vhost-user Protocol 11 version 2 or later. See the COPYING file in the top-level 26 The protocol defines 2 sides of the communication, *front-end* and 27 *back-end*. The *front-end* is the application that shares its virtqueues, in 28 our case QEMU. The *back-end* is the consumer of the virtqueues. 30 In the current implementation QEMU is the *front-end*, and the *back-end* 33 or a block device back-end processing read & write to a virtual 34 disk. In order to facilitate interoperability between various back-end 38 The *front-end* and *back-end* can be either a client (i.e. connecting) or 42 -------------------------------------- [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/alderlake/ |
H A D | frontend.json | 15 …"PublicDescription": "Number of times the front-end is resteered when it finds a branch instructio… 24 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 38 "BriefDescription": "DSB-to-MITE switch true penalty cycles.", 41 …"PublicDescription": "Decode Stream Buffer (DSB) is a Uop-cache that holds translations of previou… 53 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 65 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 107 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", 113 …ter an interval where the front-end delivered no uops for a period of at least 1 cycle which was n… 119 … after an interval where the front-end delivered no uops for a period of 128 cycles which was not … 125 … after an interval where the front-end delivered no uops for a period of 128 cycles which was not … [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/meteorlake/ |
H A D | frontend.json | 15 …"PublicDescription": "Number of times the front-end is resteered when it finds a branch instructio… 24 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 38 "BriefDescription": "DSB-to-MITE switch true penalty cycles.", 41 …"PublicDescription": "Decode Stream Buffer (DSB) is a Uop-cache that holds translations of previou… 73 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 85 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 136 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", 142 …ter an interval where the front-end delivered no uops for a period of at least 1 cycle which was n… 148 … after an interval where the front-end delivered no uops for a period of 128 cycles which was not … 154 … after an interval where the front-end delivered no uops for a period of 128 cycles which was not … [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/cascadelakex/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 …"PublicDescription": "Counts the number of times the front-end is resteered when it finds a branch… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 19 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switches", 22 …e Decode Stream Buffer (DSB)-to-MITE switches including all misses because of missing Decode Strea… 27 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles.", 30 …-to-MITE switch true penalty cycles. These cycles do not include uops routed through because of th… 41 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 52 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 88 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/skylake/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 …"PublicDescription": "Counts the number of times the front-end is resteered when it finds a branch… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 19 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switches", 22 …e Decode Stream Buffer (DSB)-to-MITE switches including all misses because of missing Decode Strea… 27 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles.", 30 …-to-MITE switch true penalty cycles. These cycles do not include uops routed through because of th… 41 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 52 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 88 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/skylakex/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 …"PublicDescription": "Counts the number of times the front-end is resteered when it finds a branch… 14 …e number of prefixes in a 16B-line. This may result in a three-cycle penalty for each LCP (Length … 19 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switches", 22 …e Decode Stream Buffer (DSB)-to-MITE switches including all misses because of missing Decode Strea… 27 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles.", 30 …-to-MITE switch true penalty cycles. These cycles do not include uops routed through because of th… 41 …Instructions that experienced DSB (Decode stream buffer i.e. the decoded instruction-cache) miss.", 52 …e stream buffer i.e. the decoded instruction-cache) miss. Critical means stalls were exposed to th… 88 "BriefDescription": "Retired instructions after front-end starvation of at least 1 cycle", [all …]
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/openbmc/qemu/include/chardev/ |
H A D | char-fe.h | 5 #include "qemu/main-loop.h" 11 * struct CharBackend - back end as seen by front end 12 * @fe_is_open: the front end is ready for IO 30 * Initializes a front end for the given CharBackend and 86 * any of the handler is non-NULL 89 * Set the front end char handlers. The front end takes the focus if 90 * any of the handler is non-NULL. 121 * Take the focus (if the front end is muxed). 164 * @is_open: the front end open status 166 * This is an indication that the front end is ready (or not) to begin [all …]
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H A D | char.h | 4 #include "qapi/qapi-types-char.h" 23 CHR_EVENT_MUX_IN, /* mux-focus was set to this terminal */ 24 CHR_EVENT_MUX_OUT, /* mux-focus will move on */ 68 /* used to coordinate the chardev-change special-case: */ 77 * @opts: see qemu-config.c for a list of valid options 171 * Determine how much data the front end can currently accept. This function 172 * returns the number of bytes the front end can accept. If it returns 0, the 173 * front end cannot receive data at the moment. The function must be polled 176 * Returns: the number of bytes the front end can receive via @qemu_chr_be_write 182 * @buf: a buffer to receive data from the front end [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/silvermont/ |
H A D | frontend.json | 6 …front end is resteered, mainly when the Branch Prediction Unit cannot provide a correct prediction… 14 …front end is resteered, mainly when the Branch Prediction Unit cannot provide a correct prediction… 22 …front end is resteered, mainly when the Branch Prediction Unit cannot provide a correct prediction… 59 …s entered into a ucode flow in the FEC. Includes inserted flows due to front-end detected faults … 62 …e most common case that this counts is when a micro-coded instruction is encountered by the front …
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H A D | pipeline.json | 96 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp… 104 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp… 113 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp… 122 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp… 131 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp… 140 …he processor predicts that the branch would be taken, but it is not, or vice-versa. When the misp… 184 … For instructions that consist of multiple micro-ops, this event counts exactly once, as the last … 192 … For instructions that consist of multiple micro-ops, this event counts the retirement of the last… 199 …front end of the machine is notified that it must restart, so no more instructions will be decoded… 204 "BriefDescription": "Self-Modifying Code detected", [all …]
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/openbmc/linux/Documentation/admin-guide/ |
H A D | pstore-blk.rst | 1 .. SPDX-License-Identifier: GPL-2.0 7 ------------ 10 block device and non-block device before the system crashes. You can get 13 mount -t pstore pstore /sys/fs/pstore 17 --------------------- 27 Configurations for driver are all about block device and non-block device, 31 ----------------------- 51 #. /dev/<disk_name><decimal> represents the device number of partition - device 53 #. /dev/<disk_name>p<decimal> - same as the above; this form is used when disk 60 #. PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF represents the unique id of [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/goldmont/ |
H A D | pipeline.json | 214 …ocation is stalled waiting for a mispredicted jump to retire or other branch-like conditions (e.g.… 222 …ource in the backend. Including but not limited to resources such as the Re-order Buffer (ROB), r… 287 "BriefDescription": "Self-Modifying Code detected", 290 …ction and has to perform a machine clear because of that modification. Self-modifying code (SMC) … 295 "BriefDescription": "Uops issued to the back end per cycle", 298 …front end and allocated into the back end of the machine. This event counts uops that retire as w… 302 "BriefDescription": "Uops requested but not-delivered to the back-end per cycle", 305 …front-end inefficiencies. I.e. when front-end of the machine is not delivering uops to the back-en… 330 …ued by the micro-sequencer (MS). Counts both the uops from a micro-coded instruction, and the uop…
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/openbmc/linux/tools/perf/pmu-events/arch/x86/goldmontplus/ |
H A D | pipeline.json | 205 "BriefDescription": "Instructions retired - using Reduced Skid PEBS feature", 223 …ocation is stalled waiting for a mispredicted jump to retire or other branch-like conditions (e.g.… 231 …ource in the backend. Including but not limited to resources such as the Re-order Buffer (ROB), r… 299 …r of times that the machines clears due to a page fault. Covers both I-side and D-side(Loads/Store… 304 "BriefDescription": "Self-Modifying Code detected", 307 …ction and has to perform a machine clear because of that modification. Self-modifying code (SMC) … 312 "BriefDescription": "Uops issued to the back end per cycle", 315 …front end and allocated into the back end of the machine. This event counts uops that retire as w… 319 "BriefDescription": "Uops requested but not-delivered to the back-end per cycle", 322 …front-end inefficiencies. I.e. when front-end of the machine is not delivering uops to the back-en… [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/haswellx/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 "PublicDescription": "Number of front end re-steers due to BPU misprediction.", 11 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles.", 25 … "BriefDescription": "Cycles where a code fetch is stalled due to L1 instruction-cache miss.", 32 … "BriefDescription": "Cycles where a code fetch is stalled due to L1 instruction-cache miss.", 136 …s event counts cycles during which the microcode sequencer assisted the Front-end in delivering uo… 186 …"PublicDescription": "This event counts uops delivered by the Front-end with the assistance of the… 195 …Front-end to the Resource Allocation Table (RAT) while the Back-end of the processor is not stalle… 205 …Front-end allocated exactly zero uops to the Resource Allocation Table (RAT) while the Back-end of… 229 "BriefDescription": "Cycles with less than 2 uops delivered by the front end.", [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/haswell/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 6 "PublicDescription": "Number of front end re-steers due to BPU misprediction.", 11 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles.", 25 … "BriefDescription": "Cycles where a code fetch is stalled due to L1 instruction-cache miss.", 32 … "BriefDescription": "Cycles where a code fetch is stalled due to L1 instruction-cache miss.", 136 …s event counts cycles during which the microcode sequencer assisted the Front-end in delivering uo… 186 …"PublicDescription": "This event counts uops delivered by the Front-end with the assistance of the… 195 …Front-end to the Resource Allocation Table (RAT) while the Back-end of the processor is not stalle… 205 …Front-end allocated exactly zero uops to the Resource Allocation Table (RAT) while the Back-end of… 229 "BriefDescription": "Cycles with less than 2 uops delivered by the front end.", [all …]
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/openbmc/linux/drivers/media/i2c/ |
H A D | ccs-pll.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */ 3 * drivers/media/i2c/ccs-pll.h 17 /* CSI-2 or CCP-2 */ 37 * struct ccs_pll_branch_fr - CCS PLL configuration (front) 39 * A single branch front-end of the CCS PLL tree. 41 * @pre_pll_clk_div: Pre-PLL clock divisor 54 * struct ccs_pll_branch_bk - CCS PLL configuration (back) 56 * A single branch back-end of the CCS PLL tree. 71 * struct ccs_pll - Full CCS PLL configuration 78 * @csi2: CSI-2 related parameters [all …]
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/openbmc/linux/include/media/ |
H A D | demux.h | 4 * The Kernel Digital TV Demux kABI defines a driver-internal interface for 5 * registering low-level, hardware specific driver to a hardware independent 64 * enum ts_filter_type - filter type bitmap for dmx_ts_feed.set\(\) 69 * @TS_DECODER: Send stream to built-in decoder (if present). 81 * struct dmx_ts_feed - Structure that contains a TS feed filter 83 * @is_filtering: Set to non-zero when filtering in progress 112 * struct dmx_section_filter - Structure that describes a section filter 120 * @parent: Back-pointer to struct dmx_section_feed. 139 * struct dmx_section_feed - Structure that contains a section feed filter 141 * @is_filtering: Set to non-zero when filtering in progress [all …]
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/openbmc/linux/tools/perf/pmu-events/arch/x86/jaketown/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 10 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switches.", 17 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles.", 20 …-end cannot accept new micro-ops. The penalty for these switches is potentially several cycles o… 141 …front-end in delivering uops. Microcode assists are used for complex instructions or scenarios th… 196 …-end per cycle, per thread, when the back-end was not stalled. In the ideal case 4 uops can be de… 218 "BriefDescription": "Cycles when 1 or more uops were delivered to the by the front end.", 235 "BriefDescription": "Cycles with less than 2 uops delivered by the front end.", 243 "BriefDescription": "Cycles with less than 3 uops delivered by the front end.",
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/openbmc/linux/tools/perf/pmu-events/arch/x86/sandybridge/ |
H A D | frontend.json | 3 …front end is resteered, mainly when the BPU cannot provide a correct prediction and this is correc… 10 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switches.", 17 "BriefDescription": "Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles.", 20 …-end cannot accept new micro-ops. The penalty for these switches is potentially several cycles o… 141 …front-end in delivering uops. Microcode assists are used for complex instructions or scenarios th… 196 …-end per cycle, per thread, when the back-end was not stalled. In the ideal case 4 uops can be de… 218 "BriefDescription": "Cycles when 1 or more uops were delivered to the by the front end.", 235 "BriefDescription": "Cycles with less than 2 uops delivered by the front end.", 243 "BriefDescription": "Cycles with less than 3 uops delivered by the front end.",
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/openbmc/qemu/include/hw/virtio/ |
H A D | vhost.h | 4 #include "hw/virtio/vhost-backend.h" 74 * struct vhost_dev - common vhost_dev structure 93 /* if non-zero, minimum required value for max_queues */ 101 * @acked_features: final negotiated features with front-end driver 114 * @protocol_features: is the vhost-user only feature set by 150 * vhost_dev_init() - initialise the vhost interface 152 * @opaque: opaque ptr passed to backend (vhost/vhost-user/vdpa) 162 * Return: 0 on success, non-zero on error while setting errp. 169 * vhost_dev_cleanup() - tear down and cleanup vhost interface 179 * vhost_dev_enable_notifiers() - enable event notifiers [all …]
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