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/openbmc/linux/arch/arm/lib/
H A Dlib1funcs.S40 .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
[all …]
/openbmc/u-boot/arch/arm/lib/
H A Dlib1funcs.S26 .macro ARM_DIV_BODY dividend, divisor, result, curbit
30 clz \curbit, \divisor
34 mov \divisor, \divisor, lsl \result
40 @ Initially shift the divisor left 3 bits if possible,
44 tst \divisor, #0xe0000000
45 moveq \divisor, \divisor, lsl #3
49 @ Unless the divisor is very big, shift it up in multiples of
51 @ division loop. Continue shifting until the divisor is
53 1: cmp \divisor, #0x10000000
54 cmplo \divisor, \dividend
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/openbmc/u-boot/lib/
H A Ddiv64.c64 s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder) in div_s64_rem() argument
69 quotient = div_u64_rem(-dividend, abs(divisor), (u32 *)remainder); in div_s64_rem()
71 if (divisor > 0) in div_s64_rem()
74 quotient = div_u64_rem(dividend, abs(divisor), (u32 *)remainder); in div_s64_rem()
75 if (divisor < 0) in div_s64_rem()
95 u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) in div64_u64_rem() argument
97 u32 high = divisor >> 32; in div64_u64_rem()
102 quot = div_u64_rem(dividend, divisor, &rem32); in div64_u64_rem()
106 quot = div_u64(dividend >> n, divisor >> n); in div64_u64_rem()
111 *remainder = dividend - quot * divisor; in div64_u64_rem()
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/openbmc/linux/lib/math/
H A Ddiv64.c67 s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder) in div_s64_rem() argument
72 quotient = div_u64_rem(-dividend, abs(divisor), (u32 *)remainder); in div_s64_rem()
74 if (divisor > 0) in div_s64_rem()
77 quotient = div_u64_rem(dividend, abs(divisor), (u32 *)remainder); in div_s64_rem()
78 if (divisor < 0) in div_s64_rem()
98 u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) in div64_u64_rem() argument
100 u32 high = divisor >> 32; in div64_u64_rem()
105 quot = div_u64_rem(dividend, divisor, &rem32); in div64_u64_rem()
109 quot = div_u64(dividend >> n, divisor >> n); in div64_u64_rem()
114 *remainder = dividend - quot * divisor; in div64_u64_rem()
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/openbmc/linux/include/linux/
H A Dmath64.h26 static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) in div_u64_rem() argument
28 *remainder = dividend % divisor; in div_u64_rem()
29 return dividend / divisor; in div_u64_rem()
40 static inline s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder) in div_s64_rem() argument
42 *remainder = dividend % divisor; in div_s64_rem()
43 return dividend / divisor; in div_s64_rem()
54 static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) in div64_u64_rem() argument
56 *remainder = dividend % divisor; in div64_u64_rem()
57 return dividend / divisor; in div64_u64_rem()
67 static inline u64 div64_u64(u64 dividend, u64 divisor) in div64_u64() argument
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H A Dmath.h86 #define DIV_ROUND_CLOSEST(x, divisor)( \ argument
89 typeof(divisor) __d = divisor; \
91 ((typeof(divisor))-1) > 0 || \
101 #define DIV_ROUND_CLOSEST_ULL(x, divisor)( \ argument
103 typeof(divisor) __d = divisor; \
/openbmc/u-boot/include/linux/
H A Dmath64.h19 static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) in div_u64_rem() argument
21 *remainder = dividend % divisor; in div_u64_rem()
22 return dividend / divisor; in div_u64_rem()
28 static inline s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder) in div_s64_rem() argument
30 *remainder = dividend % divisor; in div_s64_rem()
31 return dividend / divisor; in div_s64_rem()
37 static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) in div64_u64_rem() argument
39 *remainder = dividend % divisor; in div64_u64_rem()
40 return dividend / divisor; in div64_u64_rem()
46 static inline u64 div64_u64(u64 dividend, u64 divisor) in div64_u64() argument
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/openbmc/qemu/util/
H A Dhost-utils.c95 uint64_t divu128(uint64_t *plow, uint64_t *phigh, uint64_t divisor) in divu128() argument
102 if (divisor == 0 || dhi == 0) { in divu128()
103 *plow = dlo / divisor; in divu128()
105 return dlo % divisor; in divu128()
107 sh = clz64(divisor); in divu128()
109 if (dhi < divisor) { in divu128()
112 divisor <<= sh; in divu128()
118 *plow = udiv_qrnnd(&rem, dhi, dlo, divisor); in divu128()
122 divisor <<= sh; in divu128()
127 *phigh = udiv_qrnnd(&dhi, dhighest, dhi, divisor); in divu128()
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/openbmc/linux/arch/alpha/lib/
H A Ddivide.S56 #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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H A Dev6-divide.S66 #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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/openbmc/linux/drivers/cpufreq/
H A Dsparc-us2e-cpufreq.c86 unsigned long old_divisor, unsigned long divisor) in frob_mem_refresh() argument
91 refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL); in frob_mem_refresh()
118 unsigned long old_divisor, unsigned long divisor) in us2e_transition() argument
123 if (old_divisor == 2 && divisor == 1) { in us2e_transition()
126 frob_mem_refresh(0, clock_tick, old_divisor, divisor); in us2e_transition()
127 } else if (old_divisor == 1 && divisor == 2) { in us2e_transition()
128 frob_mem_refresh(1, clock_tick, old_divisor, divisor); in us2e_transition()
131 } else if (old_divisor == 1 && divisor > 2) { in us2e_transition()
135 2, divisor); in us2e_transition()
136 } else if (old_divisor > 2 && divisor == 1) { in us2e_transition()
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/openbmc/u-boot/arch/arm/mach-uniphier/debug-uart/
H A Ddebug-uart.c32 unsigned int divisor; in _debug_uart_init() local
37 divisor = uniphier_ld4_debug_uart_init(); in _debug_uart_init()
42 divisor = uniphier_pro4_debug_uart_init(); in _debug_uart_init()
47 divisor = uniphier_sld8_debug_uart_init(); in _debug_uart_init()
52 divisor = uniphier_pro5_debug_uart_init(); in _debug_uart_init()
57 divisor = uniphier_pxs2_debug_uart_init(); in _debug_uart_init()
62 divisor = uniphier_ld6b_debug_uart_init(); in _debug_uart_init()
68 divisor = uniphier_ld20_debug_uart_init(); in _debug_uart_init()
77 writel(divisor, base + UNIPHIER_UART_LDR); in _debug_uart_init()
/openbmc/linux/lib/crypto/mpi/
H A Dmpi-div.c18 void mpi_fdiv_qr(MPI quot, MPI rem, MPI dividend, MPI divisor);
20 void mpi_fdiv_r(MPI rem, MPI dividend, MPI divisor) in mpi_fdiv_r() argument
22 int divisor_sign = divisor->sign; in mpi_fdiv_r()
29 if (rem == divisor) { in mpi_fdiv_r()
30 temp_divisor = mpi_copy(divisor); in mpi_fdiv_r()
31 divisor = temp_divisor; in mpi_fdiv_r()
34 mpi_tdiv_r(rem, dividend, divisor); in mpi_fdiv_r()
37 mpi_add(rem, rem, divisor); in mpi_fdiv_r()
43 void mpi_fdiv_q(MPI quot, MPI dividend, MPI divisor) in mpi_fdiv_q() argument
46 mpi_fdiv_qr(quot, tmp, dividend, divisor); in mpi_fdiv_q()
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/openbmc/linux/drivers/acpi/acpica/
H A Dutmath.c257 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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/openbmc/linux/drivers/iio/common/hid-sensors/
H A Dhid-sensor-attributes.c71 static void simple_div(int dividend, int divisor, int *whole, in simple_div() argument
78 if (divisor == 0) { in simple_div()
82 *whole = dividend/divisor; in simple_div()
83 rem = dividend % divisor; in simple_div()
85 while (rem <= divisor) { in simple_div()
89 *micro_frac = (rem / divisor) * int_pow(10, 6 - exp); in simple_div()
95 int divisor = int_pow(10, exp); in split_micro_fraction() local
97 *val1 = no / divisor; in split_micro_fraction()
98 *val2 = no % divisor * int_pow(10, 6 - exp); in split_micro_fraction()
133 int divisor; in convert_to_vtf_format() local
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/openbmc/linux/Documentation/devicetree/bindings/clock/ti/
H A Ddivider.txt8 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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/openbmc/linux/arch/mips/cavium-octeon/executive/
H A Dcvmx-helper-jtag.c50 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()
/openbmc/u-boot/board/compulab/common/
H A Domap3_display.c54 .divisor = 12 | (1 << 16),
66 .divisor = 8 | (1 << 16),
78 .divisor = 5 | (1 << 16),
90 .divisor = 4 | (1 << 16),
102 .divisor = 3 | (1 << 16),
114 .divisor = 3 | (1 << 16),
126 .divisor = 10 | (1 << 10),
243 int divisor, pixclock_val; in parse_pixclock() local
247 divisor = DIV_ROUND_UP(PIXEL_CLK_NUMERATOR, pixclock_val); in parse_pixclock()
249 if (divisor <= 1) in parse_pixclock()
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/openbmc/u-boot/drivers/i2c/
H A Dast2600_i2c.c269 int divisor; in ast2600_i2c_set_speed() local
292 divisor = DIV_ROUND_UP(apb_clk, speed); in ast2600_i2c_set_speed()
295 divisor = DIV_ROUND_UP(base_clk1, speed); in ast2600_i2c_set_speed()
298 divisor = DIV_ROUND_UP(base_clk2, speed); in ast2600_i2c_set_speed()
301 divisor = DIV_ROUND_UP(base_clk3, speed); in ast2600_i2c_set_speed()
304 divisor = DIV_ROUND_UP(base_clk4, speed); in ast2600_i2c_set_speed()
306 while ((divisor + inc) > 32) { in ast2600_i2c_set_speed()
307 inc |= divisor & 0x1; in ast2600_i2c_set_speed()
308 divisor >>= 1; in ast2600_i2c_set_speed()
311 divisor += inc; in ast2600_i2c_set_speed()
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/openbmc/linux/sound/soc/codecs/
H A Dtlv320aic26.c70 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()
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/openbmc/linux/drivers/net/wireless/realtek/rtw89/
H A Dutil.h41 static inline s32 s32_div_u32_round_down(s32 dividend, u32 divisor, s32 *remainder) in s32_div_u32_round_down() argument
43 s32 i_divisor = (s32)divisor; in s32_div_u32_round_down()
60 static inline s32 s32_div_u32_round_closest(s32 dividend, u32 divisor) in s32_div_u32_round_closest() argument
62 return s32_div_u32_round_down(dividend + divisor / 2, divisor, NULL); in s32_div_u32_round_closest()
/openbmc/u-boot/drivers/ddr/marvell/a38x/
H A Dmv_ddr_common.c32 int round_div(unsigned int dividend, unsigned int divisor, unsigned int *quotient) in round_div() argument
39 if (divisor == 0) { in round_div()
43 *quotient = (dividend + divisor / 2) / divisor; in round_div()
/openbmc/qemu/tests/tcg/alpha/system/
H A Dboot.S223 #define divisor $1 macro
231 mov $25, divisor
237 1: cmpult divisor, modulus, compare
238 blt divisor, 2f
239 addq divisor, divisor, divisor
245 cmpule divisor, modulus, compare
246 subq modulus, divisor, tmp1
248 srl divisor, 1, divisor
261 #undef divisor
/openbmc/linux/arch/x86/include/asm/
H A Ddiv64.h43 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()
/openbmc/u-boot/drivers/serial/
H A Dserial_pl01x.c108 unsigned int divisor; in pl01x_generic_setbrg() local
115 divisor = UART_PL010_BAUD_9600; in pl01x_generic_setbrg()
118 divisor = UART_PL010_BAUD_19200; in pl01x_generic_setbrg()
121 divisor = UART_PL010_BAUD_38400; in pl01x_generic_setbrg()
124 divisor = UART_PL010_BAUD_57600; in pl01x_generic_setbrg()
127 divisor = UART_PL010_BAUD_115200; in pl01x_generic_setbrg()
130 divisor = UART_PL010_BAUD_38400; in pl01x_generic_setbrg()
133 writel((divisor & 0xf00) >> 8, &regs->pl010_lcrm); in pl01x_generic_setbrg()
134 writel(divisor & 0xff, &regs->pl010_lcrl); in pl01x_generic_setbrg()

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