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/linux/drivers/net/ethernet/chelsio/libcxgb/
H A Dlibcxgb_ppm.h8 * General Public License (GPL) Version 2, available from the file
77 * [page selector:2] [sw/free bits] [0] [idx] [color:6]
113 unsigned char pg_idx:2;
120 /* per cpu ppm pool */
124 spinlock_t lock; /* ppm pool lock */
143 spinlock_t map_lock; /* ppm map lock */
153 #define PPOD_PAGES_SHIFT 2 /* 4 pages per pod */
158 /* page pods are allocated in groups of this size (must be power of 2) */
197 static inline int cxgbi_ppm_is_ddp_tag(struct cxgbi_ppm *ppm, u32 tag) in cxgbi_ppm_is_ddp_tag() argument
199 return !(tag & ppm->tformat.no_ddp_mask); in cxgbi_ppm_is_ddp_tag()
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H A Dlibcxgb_ppm.c8 * General Public License (GPL) Version 2, available from the file
65 int cxgbi_ppm_find_page_index(struct cxgbi_ppm *ppm, unsigned long pgsz) in cxgbi_ppm_find_page_index() argument
67 struct cxgbi_tag_format *tformat = &ppm->tformat; in cxgbi_ppm_find_page_index()
73 pr_debug("%s: %s ppm, pgsz %lu -> idx %d.\n", in cxgbi_ppm_find_page_index()
74 __func__, ppm->ndev->name, pgsz, i); in cxgbi_ppm_find_page_index()
104 static void ppm_mark_entries(struct cxgbi_ppm *ppm, int i, int count, in ppm_mark_entries() argument
107 struct cxgbi_ppod_data *pdata = ppm->ppod_data + i; in ppm_mark_entries()
118 static int ppm_get_cpu_entries(struct cxgbi_ppm *ppm, unsigned int count, in ppm_get_cpu_entries() argument
125 if (!ppm->pool) in ppm_get_cpu_entries()
129 pool = per_cpu_ptr(ppm->pool, cpu); in ppm_get_cpu_entries()
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/linux/tools/testing/selftests/timers/
H A Draw_skew.c13 * the Free Software Foundation, either version 2 of the License, or
84 tmp = (ts_to_nsec(start) + ts_to_nsec(end))/2; in get_monotonic_and_raw()
93 long long delta1, delta2, interval, eppm, ppm; in main()
124 /* calculate measured ppm between MONOTONIC and MONOTONIC_RAW */ in main()
130 ppm = (long long)(tx1.freq + tx2.freq) * 1000 / 2; in main()
131 ppm = shift_right(ppm, 16); in main()
132 printf(" %lld.%i(act)", ppm/1000, abs((int)(ppm in main()
95 long long delta1, delta2, interval, eppm, ppm; main() local
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H A Dadjtick.c11 * the Free Software Foundation, either version 2 of the License, or
86 tmp = (ts_to_nsec(start) + ts_to_nsec(end))/2; in get_monotonic_and_raw()
113 long long eppm, ppm; in get_ppm_drift()
130 ppm = ((long long)tickval * MILLION)/systick - MILLION; in check_tick_adj()
131 printf("Estimating tick (act: %ld usec, %lld ppm): ", tickval, ppm); in check_tick_adj()
134 printf("%lld usec, %lld ppm", systick + (systick * eppm / MILLION), eppm); in check_tick_adj()
147 * Here we use 100ppm difference as an error bound. in check_tick_adj()
151 * with the adjustment, resulting in > 10ppm error during in check_tick_adj()
152 * a 10% adjustment. 100ppm als in check_tick_adj()
117 long long eppm, ppm; check_tick_adj() local
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H A Dchange_skew.c16 * the Free Software Foundation, either version 2 of the License, or
33 int change_skew_test(int ppm) in change_skew_test() argument
39 tx.freq = ppm << 16; in change_skew_test()
60 int ppm[5] = {0, 250, 500, -250, -500}; in main() local
76 printf("Using %i ppm adjustment\n", ppm[i]); in main()
77 ret = change_skew_test(ppm[i]); in main()
H A Dskew_consistency.c16 * the Free Software Foundation, either version 2 of the License, or
42 int ret, ppm; in main() local
52 ppm = 500; in main()
56 ppm = -ppm; in main()
58 tx.freq = ppm << 16; in main()
H A Dvalid-adjtimex.c16 * the Free Software Foundation, either version 2 of the License, or
58 #define NUM_FREQ_INVALID 2
131 printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n", in validate_freq()
150 printf("Error: adjtimex(ADJ_FREQ, %ld - %ld ppm\n", in validate_freq()
269 if (set_offset(5 * NSEC_PER_SEC + NSEC_PER_SEC / 2, 1)) in validate_set_offset()
272 if (set_offset(-5 * NSEC_PER_SEC - NSEC_PER_SEC / 2, 1)) in validate_set_offset()
290 if (set_offset(5 * USEC_PER_SEC + USEC_PER_SEC / 2, 0)) in validate_set_offset()
293 if (set_offset(-5 * USEC_PER_SEC - USEC_PER_SEC / 2, 0)) in validate_set_offset()
301 if (set_bad_offset(0, 2 * NSEC_PER_SEC, 1)) in validate_set_offset()
303 if (set_bad_offset(0, 2 * USEC_PER_SE in validate_set_offset()
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/linux/drivers/scsi/isci/
H A Dprobe_roms.h10 * it under the terms of version 2 of the GNU General Public License as
69 /* generation 2 (i.e. 3.0 Gb/s) */
70 #define SCIC_SDS_PARM_GEN2_SPEED 2
95 * to transmit 2 ALIGN primitives. This applies for SAS connections
104 * - A value of 2 indicates generation 2 (i.e. 3.0 Gb/s).
175 #define SCI_MAX_CONTROLLERS 2
234 * NOTE: Max spread for SATA is +0 / -5000 PPM.
237 * SATA SSC Tx at +0 / -1419 PPM Spread = 0x2
238 * SATA SSC Tx at +0 / -2129 PPM Spread = 0x3
239 * SATA SSC Tx at +0 / -4257 PPM Spread = 0x6
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/linux/drivers/target/iscsi/cxgbit/
H A Dcxgbit_ddp.c64 cxgbit_ppod_init_idata(struct cxgbit_device *cdev, struct cxgbi_ppm *ppm, in cxgbit_ppod_init_idata() argument
69 unsigned int pm_addr = (idx << PPOD_SIZE_SHIFT) + ppm->llimit; in cxgbit_ppod_init_idata()
98 cxgbit_ppod_write_idata(struct cxgbi_ppm *ppm, struct cxgbit_sock *csk, in cxgbit_ppod_write_idata() argument
110 skb = cxgbit_ppod_init_idata(cdev, ppm, idx, npods, csk->tid); in cxgbit_ppod_write_idata()
127 cxgbit_ddp_set_map(struct cxgbi_ppm *ppm, struct cxgbit_sock *csk, in cxgbit_ddp_set_map() argument
143 ret = cxgbit_ppod_write_idata(ppm, csk, ttinfo, pidx, cnt, in cxgbit_ddp_set_map()
175 struct cxgbi_ppm *ppm = cdev2ppm(cdev); in cxgbit_ddp_reserve() local
182 pr_debug("ppm 0x%p, pgidx %u, xfer %u, sgcnt %u, NO ddp.\n", in cxgbit_ddp_reserve()
183 ppm, ppm->tformat.pgsz_idx_dflt, in cxgbit_ddp_reserve()
197 ret = cxgbi_ppm_ppods_reserve(ppm, ttinfo->nr_pages, 0, &ttinfo->idx, in cxgbit_ddp_reserve()
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/linux/drivers/clocksource/
H A Dscx200_hrt.c27 static int ppm; variable
28 module_param(ppm, int, 0); /* load time only */
29 MODULE_PARM_DESC(ppm, "+-adjust to actual XO freq (ppm)");
37 #define HR_TM27MPD (1 << 2) /* 1 turns off input clock (power-down) */
76 freq = (HRT_FREQ + ppm); in init_hrt_clocksource()
80 pr_info("enabling scx200 high-res timer (%s MHz +%d ppm)\n", mhz27 ? "27":"1", ppm); in init_hrt_clocksource()
/linux/Documentation/devicetree/bindings/iio/afe/
H A Dtemperature-transducer.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
78 alpha-ppm-per-celsius:
92 - alpha-ppm-per-celsius
103 alpha-ppm-per-celsius = <1>; /* 1 uA/K */
109 io-channels = <&temp_adc 2>;
112 alpha-ppm-per-celsius = <4000>; /* 4 mV/K */
H A Dtemperature-sense-rtd.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
62 alpha-ppm-per-celsius:
87 - alpha-ppm-per-celsius
98 alpha-ppm-per-celsius = <3908>;
/linux/drivers/media/dvb-frontends/
H A Dl64781.c44 struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; in l64781_writereg()
61 ret = i2c_transfer(state->i2c, msg, 2); in l64781_readreg()
63 if (ret != 2) return ret; in l64781_readreg()
113 static const u8 fec_tab[] = { 7, 0, 1, 2, 9, 3, 10, 4 }; in apply_frontend_param()
115 static const u8 qam_tab [] = { 2, 4, 0, 6 }; in apply_frontend_param()
116 static const u8 guard_tab [] = { 1, 2, 4, 8 }; in apply_frontend_param()
118 static const u32 ppm = 8000; in apply_frontend_param() local
120 /* u32 ddfs_offset_variable = 0x6000-((1000000UL+ppm)/ */ in apply_frontend_param()
179 ddfs_offset_fixed = 0x4000-(ppm<<16)/bw/1000000; in apply_frontend_param()
181 /* This works up to 20000 ppm, it overflows if too large ppm! */ in apply_frontend_param()
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/linux/include/uapi/linux/
H A Dtimex.h68 __kernel_long_t freq; /* frequency offset (scaled ppm) */
74 __kernel_long_t tolerance;/* clock frequency tolerance (ppm)
80 __kernel_long_t ppsfreq;/* pps frequency (scaled ppm) (ro) */
83 __kernel_long_t stabil; /* pps stability (scaled ppm) (ro) */
106 long long freq; /* frequency offset (scaled ppm) */
113 long long tolerance;/* clock frequency tolerance (ppm)
119 long long ppsfreq;/* pps frequency (scaled ppm) (ro) */
123 long long stabil; /* pps stability (scaled ppm) (ro) */
200 #define TIME_DEL 2 /* delete leap second */
/linux/drivers/media/dvb-frontends/cxd2880/
H A Dcxd2880_tnrdmd_dvbt_mon.c133 *mode = (enum cxd2880_dvbt_mode)((rdata >> 2) & 0x03); in cxd2880_tnrdmd_dvbt_mon_mode_guard()
184 ((rdata[0] & 0x1f) << 24) | (rdata[1] << 16) | (rdata[2] << 8) | in cxd2880_tnrdmd_dvbt_mon_carrier_offset()
282 info->fnum = (rdata[2] >> 6) & 0x03; in cxd2880_tnrdmd_dvbt_mon_tps_info()
283 info->length_indicator = rdata[2] & 0x3f; in cxd2880_tnrdmd_dvbt_mon_tps_info()
328 *pen = (rdata[1] << 8) | rdata[2]; in cxd2880_tnrdmd_dvbt_mon_packet_error_number()
394 u8 rdata[2]; in dvbt_read_snr_reg()
420 0x13, rdata, 2); in dvbt_read_snr_reg()
543 *tnr_dmd, int *ppm) in cxd2880_tnrdmd_dvbt_mon_sampling_offset() argument
554 if (!tnr_dmd || !ppm) in cxd2880_tnrdmd_dvbt_mon_sampling_offset()
616 trl_ctl_val |= ctl_val_reg[2] << 16; in cxd2880_tnrdmd_dvbt_mon_sampling_offset()
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/linux/drivers/net/ethernet/ti/
H A Dam65-cpts.c30 u32 ppm_low; /* PPM Load Low Value 0:31 */
31 u32 ppm_hi; /* PPM Load High Value 32:63 */
59 u32 ts_ppm_low; /* Time Stamp PPM Load Low Value 0:31 */
60 u32 ts_ppm_hi; /* Time Stamp PPM Load High Value 32:63 */
70 #define AM65_CPTS_CONTROL_TS_COMP_POLARITY BIT(2)
458 /* GenF PPM will do correction using cpts refclk tick which is in am65_cpts_ptp_adjfine()
459 * (cpts->ts_add_val + 1) ns, so GenF length PPM adj period in am65_cpts_ptp_adjfine()
470 * - delay between PPM dir and PPM value changes can cause err due old in am65_cpts_ptp_adjfine()
471 * PPM correction applied in wrong direction in am65_cpts_ptp_adjfine()
472 * - delay between CPTS-clock PPM cfg and GenF PPM cfg can cause err in am65_cpts_ptp_adjfine()
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/linux/drivers/gpu/drm/radeon/
H A Dr600_dpm.c170 (radeon_crtc->v_border * 2)); in r600_dpm_get_vblank_time()
215 *u = (b_c + 1) / 2; in r600_calculate_u_and_p()
216 *p = i_c / (1 << (2 * (*u))); in r600_calculate_u_and_p()
447 WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2), in r600_engine_clock_entry_enable()
450 WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2), in r600_engine_clock_entry_enable()
458 WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2), in r600_engine_clock_entry_enable_pulse_skipping()
461 WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2), in r600_engine_clock_entry_enable_pulse_skipping()
469 WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2), in r600_engine_clock_entry_enable_post_divider()
472 WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2), in r600_engine_clock_entry_enable_post_divider()
479 WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART1 + (index * 4 * 2), in r600_engine_clock_entry_set_post_divider()
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/linux/drivers/scsi/cxgbi/
H A Dlibcxgbi.c1224 struct cxgbi_ppm *ppm = (struct cxgbi_ppm *)(*ppm_pp); in cxgbi_ddp_ppm_setup() local
1226 if (ppm->ppmax < 1024 || in cxgbi_ddp_ppm_setup()
1227 ppm->tformat.pgsz_idx_dflt >= DDP_PGIDX_MAX) in cxgbi_ddp_ppm_setup()
1266 struct cxgbi_ppm *ppm = cdev->cdev2ppm(cdev); in cxgbi_ddp_reserve() local
1279 if (!ppm || xferlen < DDP_THRESHOLD || !sgcnt || in cxgbi_ddp_reserve()
1280 ppm->tformat.pgsz_idx_dflt >= DDP_PGIDX_MAX) { in cxgbi_ddp_reserve()
1282 "ppm 0x%p, pgidx %u, xfer %u, sgcnt %u, NO ddp.\n", in cxgbi_ddp_reserve()
1283 ppm, ppm ? ppm->tformat.pgsz_idx_dflt : DDP_PGIDX_MAX, in cxgbi_ddp_reserve()
1297 * the itt generated by libiscsi is saved in the ppm and can be in cxgbi_ddp_reserve()
1300 err = cxgbi_ppm_ppods_reserve(ppm, ttinfo->nr_pages, 0, &ttinfo->idx, in cxgbi_ddp_reserve()
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/linux/include/linux/
H A Dptp_clock_kernel.h231 * scaled_ppm_to_ppb() - convert scaled ppm to ppb
233 * @ppm: Parts per million, but with a 16 bit binary fractional field
235 static inline long scaled_ppm_to_ppb(long ppm) in scaled_ppm_to_ppb() argument
243 * ppb = scaled_ppm * 1000 / 2^16 in scaled_ppm_to_ppb()
247 * ppb = scaled_ppm * 125 / 2^13 in scaled_ppm_to_ppb()
249 s64 ppb = 1 + ppm; in scaled_ppm_to_ppb()
257 * diff_by_scaled_ppm - Calculate difference using scaled ppm
/linux/drivers/gpu/drm/amd/pm/legacy-dpm/
H A Dlegacy_dpm.c249 if (fan_info->fan.ucFanTableFormat >= 2) in amdgpu_parse_extended_power_table()
528 ATOM_PPLIB_PPM_Table *ppm = (ATOM_PPLIB_PPM_Table *) in amdgpu_parse_extended_power_table() local
535 adev->pm.dpm.dyn_state.ppm_table->ppm_design = ppm->ucPpmDesign; in amdgpu_parse_extended_power_table()
537 le16_to_cpu(ppm->usCpuCoreNumber); in amdgpu_parse_extended_power_table()
539 le32_to_cpu(ppm->ulPlatformTDP); in amdgpu_parse_extended_power_table()
541 le32_to_cpu(ppm->ulSmallACPlatformTDP); in amdgpu_parse_extended_power_table()
543 le32_to_cpu(ppm->ulPlatformTDC); in amdgpu_parse_extended_power_table()
545 le32_to_cpu(ppm->ulSmallACPlatformTDC); in amdgpu_parse_extended_power_table()
547 le32_to_cpu(ppm->ulApuTDP); in amdgpu_parse_extended_power_table()
549 le32_to_cpu(ppm->ulDGpuTDP); in amdgpu_parse_extended_power_table()
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/linux/drivers/video/logo/
H A Dpnmtologo.c26 #define LINUX_LOGO_VGA16 2 /* 16 colors VGA text palette */
74 __attribute__((noreturn)) __attribute((format (printf, 1, 2)));
118 return (255*val+maxval/2)/maxval; in get_number255()
140 case '2': in read_image()
142 /* Plain PBM/PGM/PPM */ in read_image()
148 /* Binary PBM/PGM/PPM */ in read_image()
179 case '2': in read_image()
189 /* Plain PPM */ in read_image()
318 "Use ppmquant(1) -map clut_vga16.ppm to reduce the number " in write_logo_vga16()
/linux/drivers/net/wireless/intel/iwlwifi/mvm/
H A Dptp.c14 /* The scaled_ppm parameter is ppm (parts per million) with a 16-bit fractional
16 * 2^-16 ppm, and 2^16=65536 is 1 ppm.
/linux/arch/alpha/kernel/
H A Dtime.c20 * Tighten sanity in time_init from 1% (10,000 PPM) to 250 PPM
241 outb(0xb6, 0x43); /* pit counter 2: speaker */ in common_init_rtc()
352 * Now let's take care of CTC channel 2 in calibrate_cc_with_pit()
354 * Set the Gate high, program CTC channel 2 for mode 0, in calibrate_cc_with_pit()
358 outb(0xb0, 0x43); /* binary, mode 0, LSB/MSB, Ch 2 */ in calibrate_cc_with_pit()
409 /* Calibrate CPU clock -- attempt #2. */ in time_init()
419 /* If the given value is within 250 PPM of what we calculated, in time_init()
/linux/drivers/usb/typec/ucsi/
H A Ducsi.c21 * UCSI_TIMEOUT_MS - PPM communication timeout
26 * before it is actually passed to the PPM.
34 * if the PPM does not generate Connector Change events before that with
180 dev_warn(ucsi->dev, "PPM Policy conflict\n"); in ucsi_read_error()
561 struct ucsi_altmode alt[2]; in ucsi_register_altmodes()
1393 /* Give the PPM time to process a reset before reading CCI */ in ucsi_reset_ppm()
1400 /* If the PPM is still doing something else, reset it again. */ in ucsi_reset_ppm()
1422 /* PPM most likely stopped responding. Resetting everything. */ in ucsi_role_cmd()
1765 /* Reset the PPM */ in ucsi_init()
1768 dev_err(ucsi->dev, "failed to reset PPM!\n"); in ucsi_init()
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/linux/drivers/clk/
H A Dclk-si570.c112 *n1 = ((reg[0] & N1_6_2_MASK) << 2) + ((reg[1] & N1_1_0_MASK) >> 6) + 1; in si570_get_divs()
118 tmp = (tmp << 8) + reg[2]; in si570_get_divs()
175 reg[2] = (data->rfreq >> 16) & 0xff; in si570_update_rfreq()
219 n1 += (n1 == 1 ? 1 : 2); in si570_calc_divs()
263 div64_u64(data->frequency, 2), data->frequency); in si570_round_rate()
285 * Update output frequency for big frequency changes (> 3,500 ppm).
303 (((data->n1 - 1) >> 2) & N1_6_2_MASK)); in si570_set_frequency()
320 * Update output frequency for small frequency changes (< 3,500 ppm).
331 div_u64(data->frequency, 2), data->frequency); in si570_set_frequency_small()
433 /* adjust register offsets for 7ppm devices */ in si570_probe()

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