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/linux-5.10/tools/perf/tests/
Dparse-metric.c192 static int compute_metric(const char *name, struct value *vals, double *ratio) in compute_metric() argument
194 return __compute_metric(name, vals, name, ratio, NULL, NULL); in compute_metric()
206 double ratio; in test_ipc() local
214 compute_metric("IPC", vals, &ratio) == 0); in test_ipc()
216 TEST_ASSERT_VAL("IPC failed, wrong ratio", in test_ipc()
217 ratio == 1.5); in test_ipc()
223 double ratio; in test_frontend() local
233 compute_metric("Frontend_Bound_SMT", vals, &ratio) == 0); in test_frontend()
235 TEST_ASSERT_VAL("Frontend_Bound_SMT failed, wrong ratio", in test_frontend()
236 ratio == 0.45); in test_frontend()
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/linux-5.10/tools/perf/util/
Dstat-shadow.c302 static const char *get_ratio_color(enum grc_type type, double ratio) in get_ratio_color() argument
311 if (ratio > grc_table[type][0]) in get_ratio_color()
313 else if (ratio > grc_table[type][1]) in get_ratio_color()
315 else if (ratio > grc_table[type][2]) in get_ratio_color()
454 double total, ratio = 0.0; in print_stalled_cycles_frontend() local
461 ratio = avg / total * 100.0; in print_stalled_cycles_frontend()
463 color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio); in print_stalled_cycles_frontend()
465 if (ratio) in print_stalled_cycles_frontend()
467 ratio); in print_stalled_cycles_frontend()
478 double total, ratio = 0.0; in print_stalled_cycles_backend() local
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/linux-5.10/drivers/thermal/intel/
Dintel_powerclamp.c48 * we increment the confidence counter for the given target ratio.
54 * idle ratio. Similar to frequency modulation.
173 "\tpowerclamp controls idle ratio within this window. larger\n"
261 static unsigned int get_compensation(int ratio) in get_compensation() argument
266 if (ratio == 1 && in get_compensation()
267 cal_data[ratio].confidence >= CONFIDENCE_OK && in get_compensation()
268 cal_data[ratio + 1].confidence >= CONFIDENCE_OK && in get_compensation()
269 cal_data[ratio + 2].confidence >= CONFIDENCE_OK) { in get_compensation()
270 comp = (cal_data[ratio].steady_comp + in get_compensation()
271 cal_data[ratio + 1].steady_comp + in get_compensation()
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/linux-5.10/drivers/gpu/drm/amd/display/dc/dcn20/
Ddcn20_dwb_scl.c530 const uint16_t *wbscl_get_filter_3tap_16p(struct fixed31_32 ratio) in wbscl_get_filter_3tap_16p() argument
532 if (ratio.value < dc_fixpt_one.value) in wbscl_get_filter_3tap_16p()
534 else if (ratio.value < dc_fixpt_from_fraction(4, 3).value) in wbscl_get_filter_3tap_16p()
536 else if (ratio.value < dc_fixpt_from_fraction(5, 3).value) in wbscl_get_filter_3tap_16p()
542 const uint16_t *wbscl_get_filter_4tap_16p(struct fixed31_32 ratio) in wbscl_get_filter_4tap_16p() argument
544 if (ratio.value < dc_fixpt_one.value) in wbscl_get_filter_4tap_16p()
546 else if (ratio.value < dc_fixpt_from_fraction(4, 3).value) in wbscl_get_filter_4tap_16p()
548 else if (ratio.value < dc_fixpt_from_fraction(5, 3).value) in wbscl_get_filter_4tap_16p()
554 static const uint16_t *wbscl_get_filter_5tap_16p(struct fixed31_32 ratio) in wbscl_get_filter_5tap_16p() argument
556 if (ratio.value < dc_fixpt_one.value) in wbscl_get_filter_5tap_16p()
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/linux-5.10/sound/soc/codecs/
Dcs42xx8.c183 unsigned int ratio[3]; member
267 u32 ratio[2]; in cs42xx8_hw_params() local
279 ratio[tx] = rate[tx] > 0 ? cs42xx8->sysclk / rate[tx] : 0; in cs42xx8_hw_params()
280 ratio[!tx] = rate[!tx] > 0 ? cs42xx8->sysclk / rate[!tx] : 0; in cs42xx8_hw_params()
302 /* Is the ratio[tx] valid ? */ in cs42xx8_hw_params()
304 (cs42xx8_ratios[i].ratio[0] == ratio[tx] || in cs42xx8_hw_params()
305 cs42xx8_ratios[i].ratio[1] == ratio[tx] || in cs42xx8_hw_params()
306 cs42xx8_ratios[i].ratio[2] == ratio[tx]) : in cs42xx8_hw_params()
307 (cs42xx8_ratios[i].ratio[fm[tx]] == ratio[tx])) && in cs42xx8_hw_params()
311 if (!ratio[tx]) in cs42xx8_hw_params()
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Dcs4270.c162 * struct cs4270_mode_ratios - clock ratio tables
163 * @ratio: the ratio of MCLK to the sample rate
165 * this ratio
166 * @mclk: the Ratio Select bits to set in the Mode Control register for this
167 * ratio
182 * In situations where a single ratio is represented by multiple speed
183 * modes, we favor the slowest speed. E.g, for a ratio of 128, we pick
194 unsigned int ratio; member
241 * by the CS4270. The ratio of MCLK / Fs must be equal to one of nine
337 unsigned int ratio; in cs4270_hw_params() local
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/linux-5.10/tools/testing/selftests/memory-hotplug/
Dmem-on-off-test.sh139 # Run with default of ratio=2 for Kselftest run
140 ratio=2
156 ratio=$OPTARG
157 if [ "$ratio" -gt 100 ] || [ "$ratio" -lt 0 ]; then
172 echo "Test scope: $ratio% hotplug memory"
191 # Offline $ratio percent of hot-pluggable memory
194 target=`echo "a=$hotpluggable_num*$ratio; if ( a%100 ) a/100+1 else a/100" | bc`
195 echo -e "\t offline $ratio% hot-pluggable memory in online state"
255 # Offline $ratio percent of hot-pluggable memory
259 if [ $((RANDOM % 100)) -lt $ratio ]; then
/linux-5.10/drivers/clk/
Dclk-cs2000-cp.c135 /* FIXME: for Static ratio mode */ in cs2000_enable_dev_config()
194 u64 ratio; in cs2000_rate_to_ratio() local
197 * ratio = rate_out / rate_in * 2^20 in cs2000_rate_to_ratio()
202 ratio = (u64)rate_out << 20; in cs2000_rate_to_ratio()
203 do_div(ratio, rate_in); in cs2000_rate_to_ratio()
205 return ratio; in cs2000_rate_to_ratio()
208 static unsigned long cs2000_ratio_to_rate(u32 ratio, u32 rate_in) in cs2000_ratio_to_rate() argument
213 * ratio = rate_out / rate_in * 2^20 in cs2000_ratio_to_rate()
219 rate_out = (u64)ratio * rate_in; in cs2000_ratio_to_rate()
273 * this driver supports static ratio mode only at this point. in cs2000_ratio_select()
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/linux-5.10/drivers/video/backlight/
Dktd253-backlight.c21 /* Current ratio is n/32 from 1/32 to 32/32 */
34 u16 ratio; member
42 u16 current_ratio = ktd253->ratio; in ktd253_backlight_update_status()
45 dev_dbg(ktd253->dev, "new brightness/ratio: %d/32\n", brightness); in ktd253_backlight_update_status()
60 ktd253->ratio = 0; in ktd253_backlight_update_status()
96 ktd253->ratio = current_ratio; in ktd253_backlight_update_status()
98 dev_dbg(ktd253->dev, "new ratio set to %d/32\n", target_ratio); in ktd253_backlight_update_status()
141 /* This will be the default ratio when the KTD253 is enabled */ in ktd253_backlight_probe()
142 ktd253->ratio = KTD253_MAX_RATIO; in ktd253_backlight_probe()
144 ktd253->ratio = 0; in ktd253_backlight_probe()
/linux-5.10/drivers/media/platform/omap3isp/
Dispresizer.c52 * Constants for ratio calculation
302 * @ratio: Structure for ratio parameters.
307 const struct resizer_ratio *ratio) in resizer_set_ratio() argument
315 rgval |= ((ratio->horz - 1) << ISPRSZ_CNT_HRSZ_SHIFT) in resizer_set_ratio()
317 rgval |= ((ratio->vert - 1) << ISPRSZ_CNT_VRSZ_SHIFT) in resizer_set_ratio()
322 if (ratio->horz > MID_RESIZE_VALUE) in resizer_set_ratio()
328 if (ratio->vert > MID_RESIZE_VALUE) in resizer_set_ratio()
680 * @ratio : return calculated ratios
684 * has a fixed number of phases that depend on the resizing ratio. As the ratio
688 * The input/output/ratio relationship is given by the OMAP34xx TRM:
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/linux-5.10/sound/soc/fsl/
Dfsl_esai.c166 * @ratio: desired overall ratio for the paticipating dividers
170 static int fsl_esai_divisor_cal(struct snd_soc_dai *dai, bool tx, u32 ratio, in fsl_esai_divisor_cal() argument
181 if (ratio > 2 * 8 * 256 * maxfp || ratio < 2) { in fsl_esai_divisor_cal()
182 dev_err(dai->dev, "the ratio is out of range (2 ~ %d)\n", in fsl_esai_divisor_cal()
185 } else if (ratio % 2) { in fsl_esai_divisor_cal()
190 ratio /= 2; in fsl_esai_divisor_cal()
192 psr = ratio <= 256 * maxfp ? ESAI_xCCR_xPSR_BYPASS : ESAI_xCCR_xPSR_DIV8; in fsl_esai_divisor_cal()
194 /* Do not loop-search if PM (1 ~ 256) alone can serve the ratio */ in fsl_esai_divisor_cal()
195 if (ratio <= 256) { in fsl_esai_divisor_cal()
196 pm = ratio; in fsl_esai_divisor_cal()
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/linux-5.10/Documentation/driver-api/thermal/
Dintel_powerclamp.rst72 ratio (based on power reduction), and the error is the difference
73 between the actual package level C-state residency ratio and the target idle
74 ratio.
80 clamping actions of controlled duty ratio and duration. Each per-CPU
127 instantly as given input (target idle ratio). After injection,
150 a) determine the effective range of idle injection ratio
151 b) determine the amount of compensation needed at each target ratio
153 Compensation to each target ratio consists of two parts:
161 additional idle ratio can be added to quiet interrupts, by
211 we have a simple algorithm to double the injection ratio. A possible
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/linux-5.10/tools/testing/selftests/net/forwarding/
Dsch_ets_tests.sh54 local ratio=$(echo "scale=2; 100 * $d / $total" | bc -l)
56 test $(echo "$ratio > 95.0" | bc -l) -eq 1
59 log_info "Expected ratio >95% Measured ratio $ratio"
61 test $(echo "$ratio < 5" | bc -l) -eq 1
64 log_info "Expected ratio <5% Measured ratio $ratio"
/linux-5.10/drivers/media/dvb-frontends/
Dves1x93.c165 u32 ratio; in ves1x93_set_symbolrate() local
184 ratio = tmp / FIN; in ves1x93_set_symbolrate()
187 ratio = (ratio << 8) + tmp / FIN; in ves1x93_set_symbolrate()
190 ratio = (ratio << 8) + tmp / FIN; in ves1x93_set_symbolrate()
194 if (ratio < MUL/3) FNR = 0; in ves1x93_set_symbolrate()
195 if (ratio < (MUL*11)/50) FNR = 1; in ves1x93_set_symbolrate()
196 if (ratio < MUL/6) FNR = 2; in ves1x93_set_symbolrate()
197 if (ratio < MUL/9) FNR = 3; in ves1x93_set_symbolrate()
198 if (ratio < MUL/12) FNR = 4; in ves1x93_set_symbolrate()
199 if (ratio < (MUL*11)/200) FNR = 5; in ves1x93_set_symbolrate()
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Dtda8083.c124 u32 ratio; in tda8083_set_symbolrate() local
140 ratio = tmp / srate; in tda8083_set_symbolrate()
143 ratio = (ratio << 8) + tmp / srate; in tda8083_set_symbolrate()
146 ratio = (ratio << 8) + tmp / srate; in tda8083_set_symbolrate()
148 dprintk("tda8083: ratio == %08x\n", (unsigned int) ratio); in tda8083_set_symbolrate()
151 tda8083_writereg (state, 0x02, (ratio >> 16) & 0xff); in tda8083_set_symbolrate()
152 tda8083_writereg (state, 0x03, (ratio >> 8) & 0xff); in tda8083_set_symbolrate()
153 tda8083_writereg (state, 0x04, (ratio ) & 0xff); in tda8083_set_symbolrate()
/linux-5.10/drivers/gpu/drm/amd/display/dc/inc/hw/
Dtransform.h69 /* Active format aspect ratio */
270 const uint16_t *get_filter_3tap_16p(struct fixed31_32 ratio);
271 const uint16_t *get_filter_3tap_64p(struct fixed31_32 ratio);
272 const uint16_t *get_filter_4tap_16p(struct fixed31_32 ratio);
273 const uint16_t *get_filter_4tap_64p(struct fixed31_32 ratio);
274 const uint16_t *get_filter_5tap_64p(struct fixed31_32 ratio);
275 const uint16_t *get_filter_6tap_64p(struct fixed31_32 ratio);
276 const uint16_t *get_filter_7tap_64p(struct fixed31_32 ratio);
277 const uint16_t *get_filter_8tap_64p(struct fixed31_32 ratio);
/linux-5.10/drivers/media/platform/vsp1/
Dvsp1_uds.c50 * uds_output_size - Return the output size for an input size and scaling ratio
52 * @ratio: scaling ratio in U4.12 fixed-point format
54 static unsigned int uds_output_size(unsigned int input, unsigned int ratio) in uds_output_size() argument
56 if (ratio > 4096) { in uds_output_size()
60 mp = ratio / 4096; in uds_output_size()
63 return (input - 1) / mp * mp * 4096 / ratio + 1; in uds_output_size()
66 return (input - 1) * 4096 / ratio + 1; in uds_output_size()
84 * uds_passband_width - Return the passband filter width for a scaling ratio
85 * @ratio: scaling ratio in U4.12 fixed-point format
87 static unsigned int uds_passband_width(unsigned int ratio) in uds_passband_width() argument
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/linux-5.10/Documentation/ABI/testing/
Dsysfs-firmware-opal-psr4 Description: Power-Shift-Ratio directory for Powernv P9 servers
6 Power-Shift-Ratio allows to provide hints the firmware
16 Power-Shift-Ratio between CPU and GPU for a given chip
17 with chip-id X. This file gives the ratio (0-100)
/linux-5.10/drivers/media/v4l2-core/
Dv4l2-dv-timings.c358 struct v4l2_fract ratio = { 1, 1 }; in v4l2_dv_timings_aspect_ratio() local
362 return ratio; in v4l2_dv_timings_aspect_ratio()
364 return ratio; in v4l2_dv_timings_aspect_ratio()
366 ratio.numerator = t->bt.width * t->bt.picture_aspect.denominator; in v4l2_dv_timings_aspect_ratio()
367 ratio.denominator = t->bt.height * t->bt.picture_aspect.numerator; in v4l2_dv_timings_aspect_ratio()
369 rational_best_approximation(ratio.numerator, ratio.denominator, in v4l2_dv_timings_aspect_ratio()
370 ratio.numerator, ratio.denominator, &n, &d); in v4l2_dv_timings_aspect_ratio()
371 ratio.numerator = n; in v4l2_dv_timings_aspect_ratio()
372 ratio.denominator = d; in v4l2_dv_timings_aspect_ratio()
373 return ratio; in v4l2_dv_timings_aspect_ratio()
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/linux-5.10/Documentation/devicetree/bindings/rng/
Darm-cctrng.yaml27 arm,rosc-ratio:
30 Sampling ratio values for these 4 ring oscillators. (from calibration)
41 - arm,rosc-ratio
51 arm,rosc-ratio = <5000 1000 500 0>;
/linux-5.10/arch/arm/mach-omap2/
Dopp2xxx.h13 * these combinations is via the 'ratio's' which the clocks operate with
14 * respect to each other. These ratio sets are for a given voltage/DPLL
15 * setting. All configurations can be described by a DPLL setting and a ratio
16 * There are 3 ratio sets for the 2430 and X ratio sets for 2420.
36 * Key dividers which make up a PRCM set. Ratio's for a PRCM are mandated.
59 /* Core fields for cm_clksel, not ratio governed */
68 /* 2430 Ratio's, 2430-Ratio Config 1 */
85 /* 2430-Ratio Config 2 */
102 /* 2430-Ratio Bootm (BYPASS) */
119 /* 2420 Ratio Equivalents */
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/linux-5.10/drivers/staging/fbtft/
Dfb_uc1611.c26 * LCD voltage is a combination of ratio, gain, pot and temp
28 * V_LCD = V_BIAS * ratio
30 * C_V0 and C_PM depend on ratio and gain
34 /* BR -> actual ratio: 0-3 -> 5, 10, 11, 13 */
35 static unsigned int ratio = 2; variable
36 module_param(ratio, uint, 0000);
37 MODULE_PARM_DESC(ratio, "BR[1:0] Bias voltage ratio: 0-3 (default: 2)");
57 /* PC[3:2] -> V_LCD: 0, 1, 3 -> ext., int. with ratio = 5, int. standard */
83 /* Set bias ratio */ in init_display()
84 write_reg(par, 0xE8 | (ratio & 0x03)); in init_display()
/linux-5.10/arch/x86/kernel/
Dtsc_msr.c44 * If MSR_PERF_STAT[31] is set, the maximum resolved bus ratio can be
168 u32 lo, hi, ratio, freq, tscref; in cpu_khz_from_msr() local
182 ratio = (lo >> 8) & 0xff; in cpu_khz_from_msr()
185 ratio = (hi >> 8) & 0x1f; in cpu_khz_from_msr()
201 * Multiplying by ratio before the division has better in cpu_khz_from_msr()
202 * accuracy than just calculating freq * ratio. in cpu_khz_from_msr()
204 res = DIV_ROUND_CLOSEST(tscref * ratio, md->divider); in cpu_khz_from_msr()
207 res = freq * ratio; in cpu_khz_from_msr()
/linux-5.10/tools/power/x86/turbostat/
Dturbostat.c2185 unsigned int ratio; in dump_nhm_platform_info() local
2191 ratio = (msr >> 40) & 0xFF; in dump_nhm_platform_info()
2193 ratio, bclk, ratio * bclk); in dump_nhm_platform_info()
2195 ratio = (msr >> 8) & 0xFF; in dump_nhm_platform_info()
2197 ratio, bclk, ratio * bclk); in dump_nhm_platform_info()
2210 unsigned int ratio; in dump_hsw_turbo_ratio_limits() local
2216 ratio = (msr >> 8) & 0xFF; in dump_hsw_turbo_ratio_limits()
2217 if (ratio) in dump_hsw_turbo_ratio_limits()
2219 ratio, bclk, ratio * bclk); in dump_hsw_turbo_ratio_limits()
2221 ratio = (msr >> 0) & 0xFF; in dump_hsw_turbo_ratio_limits()
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/linux-5.10/drivers/gpu/drm/
Ddrm_scdc_helper.c191 * drm_scdc_set_high_tmds_clock_ratio - set TMDS clock ratio
193 * @set: ret or reset the high clock ratio
196 * TMDS clock ratio calculations go like this:
212 * sets TMDS clock ratio to 1/40 when set = 1
214 * sets TMDS clock ratio to 1/10 when set = 0
237 DRM_DEBUG_KMS("Failed to set TMDS clock ratio: %d\n", ret); in drm_scdc_set_high_tmds_clock_ratio()
243 * 100ms after writing the TMDS config for clock ratio. Lets allow a in drm_scdc_set_high_tmds_clock_ratio()

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