| /Linux-v5.4/arch/arm/lib/ |
| D | lib1funcs.S | 40 .macro ARM_DIV_BODY dividend, divisor, result, curbit
44 clz \curbit, \divisor
48 mov \divisor, \divisor, lsl \result
54 @ Initially shift the divisor left 3 bits if possible,
58 tst \divisor, #0xe0000000
59 moveq \divisor, \divisor, lsl #3
63 @ Unless the divisor is very big, shift it up in multiples of
65 @ division loop. Continue shifting until the divisor is
67 1: cmp \divisor, #0x10000000
68 cmplo \divisor, \dividend
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| /Linux-v5.4/lib/math/ |
| D | div64.c | 71 s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder) in div_s64_rem() argument
76 quotient = div_u64_rem(-dividend, abs(divisor), (u32 *)remainder); in div_s64_rem()
78 if (divisor > 0) in div_s64_rem()
81 quotient = div_u64_rem(dividend, abs(divisor), (u32 *)remainder); in div_s64_rem()
82 if (divisor < 0) in div_s64_rem()
102 u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) in div64_u64_rem() argument
104 u32 high = divisor >> 32; in div64_u64_rem()
109 quot = div_u64_rem(dividend, divisor, &rem32); in div64_u64_rem()
113 quot = div_u64(dividend >> n, divisor >> n); in div64_u64_rem()
118 *remainder = dividend - quot * divisor; in div64_u64_rem()
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| /Linux-v5.4/include/linux/ |
| D | math64.h | 24 static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) in div_u64_rem() argument
26 *remainder = dividend % divisor; in div_u64_rem()
27 return dividend / divisor; in div_u64_rem()
38 static inline s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder) in div_s64_rem() argument
40 *remainder = dividend % divisor; in div_s64_rem()
41 return dividend / divisor; in div_s64_rem()
52 static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) in div64_u64_rem() argument
54 *remainder = dividend % divisor; in div64_u64_rem()
55 return dividend / divisor; in div64_u64_rem()
65 static inline u64 div64_u64(u64 dividend, u64 divisor) in div64_u64() argument
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| /Linux-v5.4/arch/alpha/lib/ |
| D | divide.S | 56 #define divisor $1 macro
104 bis $25,$25,divisor
109 LONGIFY(divisor)
114 beq divisor, 9f /* div by zero */
125 1: cmpult divisor,modulus,compare
126 s8addq divisor,$31,divisor
130 1: cmpult divisor,modulus,compare
131 blt divisor, 2f
132 addq divisor,divisor,divisor
141 cmpule divisor,modulus,compare
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| D | ev6-divide.S | 66 #define divisor $1 macro
114 bis $25,$25,divisor # E :
120 LONGIFY(divisor) # E : U L L U
127 beq divisor, 9f /* div by zero */
144 1: cmpult divisor,modulus,compare # E :
145 s8addq divisor,$31,divisor # E :
149 1: cmpult divisor,modulus,compare # E :
152 blt divisor, 2f # U : U L U L
154 addq divisor,divisor,divisor # E :
172 cmpule divisor,modulus,compare # E :
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| /Linux-v5.4/drivers/cpufreq/ |
| D | sparc-us2e-cpufreq.c | 88 unsigned long old_divisor, unsigned long divisor) in frob_mem_refresh() argument
93 refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL); in frob_mem_refresh()
120 unsigned long old_divisor, unsigned long divisor) in us2e_transition() argument
125 if (old_divisor == 2 && divisor == 1) { in us2e_transition()
128 frob_mem_refresh(0, clock_tick, old_divisor, divisor); in us2e_transition()
129 } else if (old_divisor == 1 && divisor == 2) { in us2e_transition()
130 frob_mem_refresh(1, clock_tick, old_divisor, divisor); in us2e_transition()
133 } else if (old_divisor == 1 && divisor > 2) { in us2e_transition()
137 2, divisor); in us2e_transition()
138 } else if (old_divisor > 2 && divisor == 1) { in us2e_transition()
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| /Linux-v5.4/drivers/iio/common/hid-sensors/ |
| D | hid-sensor-attributes.c | 76 static void simple_div(int dividend, int divisor, int *whole, in simple_div() argument
83 if (divisor == 0) { in simple_div()
87 *whole = dividend/divisor; in simple_div()
88 rem = dividend % divisor; in simple_div()
90 while (rem <= divisor) { in simple_div()
94 *micro_frac = (rem / divisor) * int_pow(10, 6 - exp); in simple_div()
100 int divisor = int_pow(10, exp); in split_micro_fraction() local
102 *val1 = no / divisor; in split_micro_fraction()
103 *val2 = no % divisor * int_pow(10, 6 - exp); in split_micro_fraction()
138 int divisor; in convert_to_vtf_format() local
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| /Linux-v5.4/drivers/acpi/acpica/ |
| D | utmath.c | 257 u32 divisor, u64 *out_quotient, u32 *out_remainder) in acpi_ut_short_divide() argument
267 if (divisor == 0) { in acpi_ut_short_divide()
278 ACPI_DIV_64_BY_32(0, dividend_ovl.part.hi, divisor, in acpi_ut_short_divide()
281 ACPI_DIV_64_BY_32(remainder32, dividend_ovl.part.lo, divisor, in acpi_ut_short_divide()
316 union uint64_overlay divisor; in acpi_ut_divide() local
334 divisor.full = in_divisor; in acpi_ut_divide()
336 if (divisor.part.hi == 0) { in acpi_ut_divide()
347 ACPI_DIV_64_BY_32(0, dividend.part.hi, divisor.part.lo, in acpi_ut_divide()
350 ACPI_DIV_64_BY_32(partial1, dividend.part.lo, divisor.part.lo, in acpi_ut_divide()
361 normalized_divisor = divisor; in acpi_ut_divide()
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| /Linux-v5.4/arch/c6x/kernel/ |
| D | c6x_ksyms.c | 15 extern int __c6xabi_divi(int dividend, int divisor);
18 extern unsigned __c6xabi_divu(unsigned dividend, unsigned divisor);
21 extern int __c6xabi_remi(int dividend, int divisor);
24 extern unsigned __c6xabi_remu(unsigned dividend, unsigned divisor);
27 extern int __c6xabi_divremi(int dividend, int divisor);
30 extern unsigned __c6xabi_divremu(unsigned dividend, unsigned divisor);
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| /Linux-v5.4/Documentation/devicetree/bindings/clock/ti/ |
| D | divider.txt | 8 the register is one less than the actual divisor value. E.g:
10 register value actual divisor value
17 ti,index-starts-at-one - valid divisor values start at 1, not the default
19 register value actual divisor value
24 ti,index-power-of-two - valid divisor values are powers of two. E.g:
25 register value actual divisor value
34 Which will map the resulting values to a divisor table by their index:
35 register value actual divisor value
38 2 <invalid divisor, skipped>
65 - ti,min-div : min divisor for dividing the input clock rate, only
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| /Linux-v5.4/arch/mips/cavium-octeon/executive/ |
| D | cvmx-helper-jtag.c | 50 uint32_t divisor = cvmx_sysinfo_get()->cpu_clock_hz / (25 * 1000000); in cvmx_helper_qlm_jtag_init() local
51 divisor = (divisor - 1) >> 2; in cvmx_helper_qlm_jtag_init()
53 while (divisor) { in cvmx_helper_qlm_jtag_init()
55 divisor = divisor >> 1; in cvmx_helper_qlm_jtag_init()
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| /Linux-v5.4/arch/h8300/lib/ |
| D | udivsi3.S | 31 shlr.l er2 ; make divisor < 2^16
35 shlr.l #2,er2 ; make divisor < 2^16
41 shlr.l #2,er2 ; make divisor < 2^16
56 ;; er1 contains divisor
57 ;; er2 contains shifted divisor
64 mulxu.w r0,er2 ; er2 = upper (AQ - 1) * divisor
68 sub.l er2,er3 ; er3 = dividend - (AQ - 1) * divisor
70 cmp.l er1,er3 ; is divisor < remainder?
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| /Linux-v5.4/sound/soc/codecs/ |
| D | tlv320aic26.c | 70 int fsref, divisor, wlen, pval, jval, dval, qval; in aic26_hw_params() local
79 case 8000: fsref = 48000; divisor = AIC26_DIV_6; break; in aic26_hw_params()
80 case 11025: fsref = 44100; divisor = AIC26_DIV_4; break; in aic26_hw_params()
81 case 12000: fsref = 48000; divisor = AIC26_DIV_4; break; in aic26_hw_params()
82 case 16000: fsref = 48000; divisor = AIC26_DIV_3; break; in aic26_hw_params()
83 case 22050: fsref = 44100; divisor = AIC26_DIV_2; break; in aic26_hw_params()
84 case 24000: fsref = 48000; divisor = AIC26_DIV_2; break; in aic26_hw_params()
85 case 32000: fsref = 48000; divisor = AIC26_DIV_1_5; break; in aic26_hw_params()
86 case 44100: fsref = 44100; divisor = AIC26_DIV_1; break; in aic26_hw_params()
87 case 48000: fsref = 48000; divisor = AIC26_DIV_1; break; in aic26_hw_params()
[all …]
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| /Linux-v5.4/arch/x86/include/asm/ |
| D | div64.h | 43 static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) in div_u64_rem() argument
53 if (upper >= divisor) { in div_u64_rem()
54 d.v32[1] = upper / divisor; in div_u64_rem()
55 upper %= divisor; in div_u64_rem()
58 "rm" (divisor), "0" (d.v32[0]), "1" (upper)); in div_u64_rem()
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| /Linux-v5.4/arch/powerpc/lib/ |
| D | div64.S | 22 divwu r7,r5,r4 # if dividend.hi >= divisor,
23 mullw r0,r7,r4 # quotient.hi = dividend.hi / divisor
24 subf. r5,r0,r5 # dividend.hi %= divisor
31 srw r10,r10,r0 # the divisor right the same amount,
41 mulhwu r9,r11,r4 # multiply the estimate by the divisor,
42 subfc r6,r10,r6 # take the product from the divisor,
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| /Linux-v5.4/drivers/clk/ |
| D | clk-vt8500.c | 135 u32 divisor; in vt8500_dclk_round_rate() local
140 divisor = *prate / rate; in vt8500_dclk_round_rate()
143 if (rate * divisor < *prate) in vt8500_dclk_round_rate()
144 divisor++; in vt8500_dclk_round_rate()
150 if ((cdev->div_mask == 0x3F) && (divisor > 31)) { in vt8500_dclk_round_rate()
151 divisor = 64 * ((divisor / 64) + 1); in vt8500_dclk_round_rate()
154 return *prate / divisor; in vt8500_dclk_round_rate()
161 u32 divisor; in vt8500_dclk_set_rate() local
167 divisor = parent_rate / rate; in vt8500_dclk_set_rate()
169 if (divisor == cdev->div_mask + 1) in vt8500_dclk_set_rate()
[all …]
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| /Linux-v5.4/arch/x86/boot/ |
| D | string.c | 202 static inline u64 __div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) in __div_u64_rem() argument
212 if (upper >= divisor) { in __div_u64_rem()
213 d.v32[1] = upper / divisor; in __div_u64_rem()
214 upper %= divisor; in __div_u64_rem()
217 "rm" (divisor), "0" (d.v32[0]), "1" (upper)); in __div_u64_rem()
221 static inline u64 __div_u64(u64 dividend, u32 divisor) in __div_u64() argument
225 return __div_u64_rem(dividend, divisor, &remainder); in __div_u64()
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| /Linux-v5.4/arch/x86/kernel/ |
| D | early_printk.c | 133 static __init void early_serial_hw_init(unsigned divisor) in early_serial_hw_init() argument
144 serial_out(early_serial_base, DLL, divisor & 0xff); in early_serial_hw_init()
145 serial_out(early_serial_base, DLH, (divisor >> 8) & 0xff); in early_serial_hw_init()
153 unsigned divisor; in early_serial_init() local
187 divisor = 115200 / baud; in early_serial_init()
194 early_serial_hw_init(divisor); in early_serial_init()
222 unsigned divisor; in early_pci_serial_init() local
316 divisor = 115200 / baud; in early_pci_serial_init()
319 early_serial_hw_init(divisor); in early_pci_serial_init()
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| /Linux-v5.4/drivers/cpuidle/governors/ |
| D | menu.c | 182 int i, divisor; in get_typical_interval() local
194 divisor = 0; in get_typical_interval()
199 divisor++; in get_typical_interval()
215 if (divisor == INTERVALS) in get_typical_interval()
218 avg = div_u64(sum, divisor); in get_typical_interval()
229 if (divisor == INTERVALS) in get_typical_interval()
232 do_div(variance, divisor); in get_typical_interval()
247 if ((((u64)avg*avg > variance*36) && (divisor * 4 >= INTERVALS * 3)) in get_typical_interval()
262 if ((divisor * 4) <= INTERVALS * 3) in get_typical_interval()
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| /Linux-v5.4/drivers/gpu/drm/amd/display/dc/basics/ |
| D | conversion.c | 40 int32_t divisor = 1 << fractional_bits; in fixed_point_to_int_frac() local
48 if (d <= (uint16_t)(1 << integer_bits) - (1 / (uint16_t)divisor)) in fixed_point_to_int_frac()
52 divisor)); in fixed_point_to_int_frac()
60 divisor)))); in fixed_point_to_int_frac()
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| /Linux-v5.4/drivers/staging/comedi/drivers/ |
| D | comedi_8254.c | 341 i8254->divisor = i8254->next_div & 0xffff; in comedi_8254_update_divisors()
441 unsigned int divisor; in comedi_8254_ns_to_timer() local
446 divisor = DIV_ROUND_CLOSEST(*nanosec, i8254->osc_base); in comedi_8254_ns_to_timer()
449 divisor = DIV_ROUND_UP(*nanosec, i8254->osc_base); in comedi_8254_ns_to_timer()
452 divisor = *nanosec / i8254->osc_base; in comedi_8254_ns_to_timer()
455 if (divisor < 2) in comedi_8254_ns_to_timer()
456 divisor = 2; in comedi_8254_ns_to_timer()
457 if (divisor > I8254_MAX_COUNT) in comedi_8254_ns_to_timer()
458 divisor = I8254_MAX_COUNT; in comedi_8254_ns_to_timer()
460 *nanosec = divisor * i8254->osc_base; in comedi_8254_ns_to_timer()
[all …]
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| D | adv_pci1760.c | 179 unsigned int divisor; in pci1760_pwm_ns_to_div() local
183 divisor = DIV_ROUND_CLOSEST(ns, PCI1760_PWM_TIMEBASE); in pci1760_pwm_ns_to_div()
186 divisor = DIV_ROUND_UP(ns, PCI1760_PWM_TIMEBASE); in pci1760_pwm_ns_to_div()
189 divisor = ns / PCI1760_PWM_TIMEBASE; in pci1760_pwm_ns_to_div()
195 if (divisor < 1) in pci1760_pwm_ns_to_div()
196 divisor = 1; in pci1760_pwm_ns_to_div()
197 if (divisor > 0xffff) in pci1760_pwm_ns_to_div()
198 divisor = 0xffff; in pci1760_pwm_ns_to_div()
200 return divisor; in pci1760_pwm_ns_to_div()
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| /Linux-v5.4/Documentation/devicetree/bindings/clock/ |
| D | vt8500.txt | 44 - divisor-reg : shall be the register offset from PMC base for the divisor
47 - divisor-mask : shall be the mask for the divisor register. Defaults to 0x1f
70 divisor-reg = <0x328>;
71 divisor-mask = <0x3f>;
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| /Linux-v5.4/arch/powerpc/boot/ |
| D | virtex.c | 29 u16 divisor; in virtex_ns16550_console_init() local
52 divisor = clk / (16 * spd); in virtex_ns16550_console_init()
58 out_8(reg_base + (UART_DLL << reg_shift), divisor & 0xFF); in virtex_ns16550_console_init()
59 out_8(reg_base + (UART_DLM << reg_shift), divisor >> 8); in virtex_ns16550_console_init()
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| /Linux-v5.4/drivers/usb/serial/ |
| D | oti6858.c | 76 __le16 divisor; /* baud rate = 96000000 / (16 * divisor), LE */ member
114 (((a)->divisor == (priv)->pending_setup.divisor) \
181 __le16 divisor; member
228 new_setup->divisor = priv->pending_setup.divisor; in setup_line()
406 __le16 divisor; in oti6858_set_termios() local
412 divisor = priv->pending_setup.divisor; in oti6858_set_termios()
441 divisor = 0; in oti6858_set_termios()
449 divisor = cpu_to_le16(new_divisor); in oti6858_set_termios()
491 if (divisor != priv->pending_setup.divisor in oti6858_set_termios()
494 priv->pending_setup.divisor = divisor; in oti6858_set_termios()
[all …]
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