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/linux/drivers/s390/cio/
H A Ddevice_pgid.c78 req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam & sch->opm & in nop_do()
80 if (!req->lpm) in nop_do()
112 sch->vpm |= req->lpm; in nop_callback()
115 cdev->private->path_noirq_mask |= req->lpm; in nop_callback()
118 cdev->private->path_notoper_mask |= req->lpm; in nop_callback()
124 req->lpm >>= 1; in nop_callback()
139 int i = pathmask_to_pos(req->lpm); in spid_build_cp()
183 req->lpm = sch->schib.pmcw.pam; in pgid_wipeout_start()
202 req->lpm = lpm_adjust(req->lpm, cdev->private->pgid_todo_mask); in spid_do()
203 if (!req->lpm) in spid_do()
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H A Dccwreq.c24 * @lpm: path mask to adjust
27 * Shift @lpm right until @lpm and @mask have at least one bit in common or
28 * until @lpm is zero. Return the resulting lpm.
30 int lpm_adjust(int lpm, int mask) in lpm_adjust() argument
32 while (lpm && ((lpm & mask) == 0)) in lpm_adjust()
33 lpm >>= 1; in lpm_adjust()
34 return lpm; in lpm_adjust()
50 req->mask = lpm_adjust(req->mask >> 1, req->lpm); in ccwreq_next_path()
128 req->mask = req->lpm; in ccw_request_start()
131 req->mask = lpm_adjust(req->mask, req->lpm); in ccw_request_start()
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H A Dcio.c100 cio_start_handle_notoper(struct subchannel *sch, __u8 lpm) in cio_start_handle_notoper() argument
104 if (lpm != 0) in cio_start_handle_notoper()
105 sch->lpm &= ~lpm; in cio_start_handle_notoper()
107 sch->lpm = 0; in cio_start_handle_notoper()
120 return (sch->lpm ? -EACCES : -ENODEV); in cio_start_handle_notoper()
126 __u8 lpm, /* logical path mask */ in cio_start_key() argument
144 orb->cmd.lpm = (lpm != 0) ? lpm : sch->lpm; in cio_start_key()
169 return cio_start_handle_notoper(sch, lpm); in cio_start_key()
177 cio_start (struct subchannel *sch, struct ccw1 *cpa, __u8 lpm) in cio_start() argument
179 return cio_start_key(sch, cpa, lpm, PAGE_DEFAULT_KEY); in cio_start()
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H A Dvfio_ccw_fsm.c24 __u8 lpm; in fsm_io_helper() local
59 lpm = orb->cmd.lpm; in fsm_io_helper()
60 if (lpm != 0) in fsm_io_helper()
61 sch->lpm &= ~lpm; in fsm_io_helper()
63 sch->lpm = 0; in fsm_io_helper()
68 ret = sch->lpm ? -EACCES : -ENODEV; in fsm_io_helper()
H A Dio_sch.h65 * @lpm: mask of paths to use
70 * @singlepath: if set, use only one path from @lpm per start I/O
81 u8 lpm; member
H A Dorb.h36 u32 lpm:8; /* logical path mask */ member
52 u32 lpm:8; member
/linux/Documentation/devicetree/bindings/usb/
H A Dusb-xhci.yaml16 usb2-lpm-disable:
17 description: Indicates if we don't want to enable USB2 HW LPM
20 usb3-lpm-capable:
21 description: Determines if platform is USB3 LPM capable
46 usb2-lpm-disable;
47 usb3-lpm-capable;
H A Dhisilicon,histb-xhci.txt26 - usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
27 - usb3-lpm-capable: determines if platform is USB3 LPM capable
H A Dsnps,dwc3-common.yaml54 snps,usb2-lpm-disable:
55 description: Indicate if we don't want to enable USB2 HW LPM for host
60 description: Determines if platform is USB3 LPM capable
63 snps,usb2-gadget-lpm-disable:
64 description: Indicate if we don't want to enable USB2 HW LPM for gadget
91 snps,has-lpm-erratum:
92 description: True when DWC3 was configured with LPM Erratum enabled
95 snps,lpm-nyet-threshold:
96 description: LPM NYET threshold
210 snps,gfladj-refclk-lpm-sel-quirk:
H A Dstarfive,jh7110-usb.yaml47 - const: lpm
97 clock-names = "lpm", "stb", "apb", "axi", "utmi_apb";
H A Dfsl,imx8qm-cdns3.yaml39 - const: lpm
81 clock-names = "lpm", "bus", "aclk", "ipg", "core";
H A Dti,j721e-usb.yaml40 - const: lpm
90 clock-names = "ref", "lpm";
/linux/Documentation/bpf/
H A Dmap_lpm_trie.rst18 LPM tries may be created with a maximum prefix length that is a multiple
26 The value type stored in the LPM trie can be any user defined type.
96 A userspace program can iterate through the entries in an LPM trie using
104 ``bpf_map_get_next_key()`` will iterate through the LPM trie elements
112 of LPM trie usage from userspace. The code snippets below demonstrate
118 The following BPF code snippet shows how to declare a new LPM trie for IPv4
157 LPM trie:
171 of an LPM trie:
/linux/drivers/regulator/
H A Dmcp16502.c38 * controlled via GPIO lines called LPM and HPM.
43 * state by setting the GPIO lpm pin high/low.
147 * @lpm: LPM GPIO descriptor
150 struct gpio_desc *lpm; member
162 gpiod_set_value(mcp->lpm, 0); in mcp16502_gpio_set_mode()
166 gpiod_set_value(mcp->lpm, 1); in mcp16502_gpio_set_mode()
185 return MCP16502_REG_BASE(rdev_get_id(rdev), LPM); in mcp16502_get_state_reg()
531 mcp->lpm = devm_gpiod_get_optional(dev, "lpm", GPIOD_OUT_LOW); in mcp16502_probe()
532 if (IS_ERR(mcp->lpm)) { in mcp16502_probe()
533 dev_err(dev, "failed to get lpm pin: %ld\n", PTR_ERR(mcp->lpm)); in mcp16502_probe()
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/linux/Documentation/networking/devlink/
H A Ddevlink-dpipe.rst15 For example, the routing longest prefix match (LPM) algorithm used by the
31 One example is the kernel's LPM algorithm which in many cases differs
127 LPM are not supported due to the fact that this is exactly a process we wish
166 LPM section in Abstraction Example
169 The LPM algorithm can be implemented as a list of hash tables. Each hash
177 The ``meta.lpm_prefix`` field is used to connect two LPM tables.
197 In the case of local routes the LPM lookup already resolves the egress
215 In case of remote routes this table does the ECMP. The LPM lookup results in
218 and the packet's hash a local offset is generated. Multiple LPM entries can
/linux/drivers/bluetooth/
H A Dhci_intel.c140 bt_dev_err(hu->hdev, "LPM transaction interrupted"); in intel_wait_lpm_transaction()
145 bt_dev_err(hu->hdev, "LPM transaction timeout"); in intel_wait_lpm_transaction()
169 bt_dev_err(hu->hdev, "Failed to alloc memory for LPM packet"); in intel_lpm_suspend()
178 /* LPM flow is a priority, enqueue packet at list head */ in intel_lpm_suspend()
214 bt_dev_err(hu->hdev, "Failed to alloc memory for LPM packet"); in intel_lpm_resume()
222 /* LPM flow is a priority, enqueue packet at list head */ in intel_lpm_resume()
254 bt_dev_err(hu->hdev, "Failed to alloc memory for LPM packet"); in intel_lpm_host_wake()
261 /* LPM flow is a priority, enqueue packet at list head */ in intel_lpm_host_wake()
281 /* Host/Controller are now LPM resumed, trigger a new delayed suspend */ in intel_irq()
316 /* Provide to idev a hu reference which is used to run LPM in intel_set_power()
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/linux/Documentation/ABI/testing/
H A Dsysfs-bus-usb97 If CONFIG_PM is set and a USB 2.0 lpm-capable device is plugged
98 in to a xHCI host which support link PM, it will perform a LPM
99 test; if the test is passed and host supports USB2 hardware LPM
100 (xHCI 1.0 feature), USB2 hardware LPM will be enabled for the
103 or disable) indicating whether or not USB2 hardware LPM is
113 If CONFIG_PM is set and a USB 3.0 lpm-capable device is plugged
116 the check is passed and the host supports USB3 hardware LPM,
117 USB3 hardware LPM will be enabled for the device and the USB
121 or not USB3 hardware LPM U1 or U2 is enabled for the device.
223 Some USB3.0 devices are not friendly to USB3 LPM. usb3_lpm_permit
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/linux/Documentation/devicetree/bindings/phy/
H A Dsophgo,cv1800b-usb2-phy.yaml26 - description: PHY lpm clock
32 - const: lpm
52 clock-names = "app", "stb", "lpm";
/linux/drivers/soc/pxa/
H A Dmfp.c45 * non-LPM pulled output, the same configuration could probably be used.
171 int pin, af, drv, lpm, edge, pull; in mfp_config() local
179 lpm = MFP_LPM_STATE(c); in mfp_config()
190 p->mfpr_run = tmp | mfpr_lpm[lpm] | mfpr_edge[edge]; in mfp_config()
193 p->mfpr_lpm = tmp | mfpr_lpm[lpm] | mfpr_edge[edge]; in mfp_config()
/linux/Documentation/driver-api/usb/
H A Dusb3-debug-port.rst76 [ 1815.999595] usb 4-3: LPM exit latency is zeroed, disabling LPM.
144 [ 79.475003] usb 2-2.1: LPM exit latency is zeroed, disabling LPM.
H A Dpower-management.rst529 enabling hardware LPM, the host can automatically put the device into
533 The user interface for controlling hardware LPM is located in the
540 When a USB2 device which support LPM is plugged to a
541 xHCI host root hub which support software LPM, the
542 host will run a software LPM test for it; if the device
544 supports USB2 hardware LPM, this file will show up and
545 driver will enable hardware LPM for the device. You
547 USB2 hardware LPM manually. This is for test purpose mainly.
552 When a USB 3.0 lpm-capable device is plugged in to a
556 supports USB3 hardware LPM, USB3 hardware LPM will be
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/linux/drivers/soc/qcom/
H A Dqcom_stats.c154 * (1) DDR LPM Stats in qcom_ddr_stats_print()
160 * In case of DDR LPM stat, name field will be encoded as, in qcom_ddr_stats_print()
162 * 0:7 - DDR LPM name, can be of 0xd4, 0xd3, 0x11 and 0xd0. in qcom_ddr_stats_print()
163 * 8:15 - 0x0 (indicates its a LPM stat) in qcom_ddr_stats_print()
175 seq_printf(s, "DDR LPM Stat Name:0x%lx\tcount:%u\tDuration (ticks):%llu\n", in qcom_ddr_stats_print()
203 * populated from boot up onwards for both DDR LPM Stats in qcom_ddr_stats_show()
/linux/include/linux/soc/pxa/
H A Dmfp.h413 #define MFP_CFG_LPM(pin, af, lpm) \ argument
415 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm))
417 #define MFP_CFG_X(pin, af, drv, lpm) \ argument
419 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm))
/linux/drivers/ata/
H A Dlibata-pmp.c189 * sata_pmp_set_lpm - configure LPM for a PMP link
190 * @link: PMP link to configure LPM for
191 * @policy: target LPM policy
192 * @hints: LPM hints
194 * Configure LPM for @link. This function will contain any PMP
388 /* link reports offline after LPM */ in sata_pmp_quirks()
408 * Link reports offline after LPM. Class code report is in sata_pmp_quirks()
419 /* link reports offline after LPM */ in sata_pmp_quirks()
456 * LPM disabled to avoid potential problems in sata_pmp_quirks()
984 * If LPM is active on any fan-out port, hotplug wouldn't in sata_pmp_eh_recover()
/linux/drivers/usb/cdns3/
H A Dcdns3-gadget.h158 /* L1 LPM state entry enable (used in HS/FS mode). */
160 /* L1 LPM state entry disable (used in HS/FS mode). */
166 /* L0 LPM state entry request (used in HS/FS mode). */
291 * L1 LPM state enable status (used in HS/FS mode).
292 * 0 - Entering to L1 LPM state disabled.
293 * 1 - Entering to L1 LPM state enabled.
305 * HS/FS LPM state (used in FS/HS mode).
461 /* LPM L2 state enter interrupt enable.*/
463 /* LPM L2 state exit interrupt enable.*/
465 /* LPM L1 state enter interrupt enable.*/
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