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Searched refs:divisor (Results 1 – 25 of 144) sorted by relevance

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/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
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H A Ddiv64.S50 bls 9f @ divisor is 0 or 1
52 beq 8f @ divisor is power of 2
59 @ Align divisor with upper part of dividend.
60 @ The aligned divisor is stored in yl preserving the original.
102 @ divisor for comparisons, considering the carry-out bit as well.
139 @ divisor at this point since divisor can not be smaller than 3 here.
147 8: @ Division by a power of 2: determine what that divisor order is
/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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/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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/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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/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()
/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 in aic26_hw_params()
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H A Dtlv320aic32x4-clk.c319 u8 divisor; in clk_aic32x4_div_set_rate()
321 divisor = DIV_ROUND_UP(parent_rate, rate); in clk_aic32x4_div_set_rate() local
322 if (divisor > AIC32X4_DIV_MAX) in clk_aic32x4_div_set_rate()
326 AIC32X4_DIV_MASK, divisor); in clk_aic32x4_div_set_rate()
332 unsigned long divisor; in clk_aic32x4_div_determine_rate()
334 divisor = DIV_ROUND_UP(req->best_parent_rate, req->rate); in clk_aic32x4_div_determine_rate() local
335 if (divisor > AIC32X4_DIV_MAX) in clk_aic32x4_div_determine_rate()
338 req->rate = DIV_ROUND_UP(req->best_parent_rate, divisor); in clk_aic32x4_div_determine_rate()
/linux/drivers/clk/
H A Dclk-vt8500.c135 u32 divisor; in vt8500_dclk_determine_rate() local
140 divisor = req->best_parent_rate / req->rate; in vt8500_dclk_determine_rate()
143 if (req->rate * divisor < req->best_parent_rate) in vt8500_dclk_determine_rate()
144 divisor++; in vt8500_dclk_determine_rate()
150 if ((cdev->div_mask == 0x3F) && (divisor > 31)) in vt8500_dclk_determine_rate()
151 divisor = 64 * ((divisor / 64) + 1); in vt8500_dclk_determine_rate()
153 req->rate = req->best_parent_rate / divisor; in vt8500_dclk_determine_rate()
162 u32 divisor; in vt8500_dclk_set_rate() local
168 divisor = parent_rate / rate; in vt8500_dclk_set_rate()
170 if (divisor == cdev->div_mask + 1) in vt8500_dclk_set_rate()
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/linux/lib/crypto/mpi/
H A Dmpi-div.c19 int mpi_fdiv_r(MPI rem, MPI dividend, MPI divisor) in mpi_fdiv_r() argument
21 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()
33 divisor = temp_divisor; in mpi_fdiv_r()
36 err = mpi_tdiv_r(rem, dividend, divisor); in mpi_fdiv_r()
41 err = mpi_add(rem, rem, divisor); in mpi_fdiv_r()
/linux/arch/powerpc/lib/
H A Ddiv64.S22 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,
/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()
/linux/tools/include/uapi/linux/
H A Dconst.h59 #define __KERNEL_DIV_ROUND_CLOSEST(x, divisor) \ argument
62 __typeof__(divisor) __d = divisor; \
65 ((__typeof__(divisor))-1) > 0 || \
/linux/arch/x86/boot/
H A Dstring.c200 static inline u64 __div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) in __div_u64_rem() argument
210 if (upper >= divisor) { in __div_u64_rem()
211 d.v32[1] = upper / divisor; in __div_u64_rem()
212 upper %= divisor; in __div_u64_rem()
215 "rm" (divisor), "0" (d.v32[0]), "1" (upper)); in __div_u64_rem()
219 static inline u64 __div_u64(u64 dividend, u32 divisor) in __div_u64() argument
223 return __div_u64_rem(dividend, divisor, &remainder); in __div_u64()
H A Dearly_serial_console.c29 unsigned divisor; in early_serial_init() local
36 divisor = 115200 / baud; in early_serial_init()
39 outb(divisor & 0xff, port + DLL); in early_serial_init()
40 outb((divisor >> 8) & 0xff, port + DLH); in early_serial_init()
/linux/arch/x86/kernel/
H A Dearly_printk.c134 static __init void early_serial_hw_init(unsigned divisor) in early_serial_hw_init() argument
145 static_call(serial_out)(early_serial_base, DLL, divisor & 0xff); in early_serial_hw_init()
146 static_call(serial_out)(early_serial_base, DLH, (divisor >> 8) & 0xff); in early_serial_hw_init()
159 unsigned divisor; in early_serial_init() local
193 divisor = 115200 / baud; in early_serial_init()
196 early_serial_hw_init(divisor); in early_serial_init()
264 unsigned divisor; in early_pci_serial_init() local
359 divisor = 115200 / baud; in early_pci_serial_init()
362 early_serial_hw_init(divisor); in early_pci_serial_init()
/linux/net/sched/
H A Dsch_sfq.c110 unsigned int divisor; /* number of slots in hash table */ member
153 return skb_get_hash_perturb(skb, &q->perturbation) & (q->divisor - 1); in sfq_hash()
166 TC_H_MIN(skb->priority) <= q->divisor) in sfq_classify()
187 if (TC_H_MIN(res.classid) <= q->divisor) in sfq_classify()
642 unsigned int divisor; in sfq_change() local
654 if (ctl->divisor && in sfq_change()
655 (!is_power_of_2(ctl->divisor) || ctl->divisor > 65536)) in sfq_change()
687 divisor = q->divisor; in sfq_change()
699 if (ctl->divisor) { in sfq_change()
700 divisor = ctl->divisor; in sfq_change()
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/linux/Documentation/devicetree/bindings/clock/
H A Dvt8500.txt44 - 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>;
/linux/drivers/comedi/drivers/
H A Dcomedi_8254.c384 i8254->divisor = i8254->next_div & 0xffff; in comedi_8254_update_divisors()
484 unsigned int divisor; in comedi_8254_ns_to_timer() local
489 divisor = DIV_ROUND_CLOSEST(*nanosec, i8254->osc_base); in comedi_8254_ns_to_timer()
492 divisor = DIV_ROUND_UP(*nanosec, i8254->osc_base); in comedi_8254_ns_to_timer()
495 divisor = *nanosec / i8254->osc_base; in comedi_8254_ns_to_timer()
498 if (divisor < 2) in comedi_8254_ns_to_timer()
499 divisor = 2; in comedi_8254_ns_to_timer()
500 if (divisor > I8254_MAX_COUNT) in comedi_8254_ns_to_timer()
501 divisor = I8254_MAX_COUNT; in comedi_8254_ns_to_timer()
503 *nanosec = divisor * i8254->osc_base; in comedi_8254_ns_to_timer()
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/linux/drivers/tty/serial/8250/
H A D8250_pericom.c58 unsigned int divisor = max(maxrate / baud, 1U); in pericom_do_set_divisor() local
59 int delta = maxrate / divisor - baud; in pericom_do_set_divisor()
65 divisor++; in pericom_do_set_divisor()
67 if (divisor > 0xffff) in pericom_do_set_divisor()
71 delta = maxrate / divisor - baud; in pericom_do_set_divisor()
77 serial_dl_write(up, divisor); in pericom_do_set_divisor()
/linux/arch/powerpc/boot/
H A Ddiv64.S22 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,
/linux/include/vdso/
H A Dmath64.h6 __iter_div_u64_rem(u64 dividend, u32 divisor, u64 *remainder) in __iter_div_u64_rem() argument
10 while (dividend >= divisor) { in __iter_div_u64_rem()
15 dividend -= divisor; in __iter_div_u64_rem()
/linux/drivers/mfd/
H A Dmcp-sa11x0.c45 mcp_sa11x0_set_telecom_divisor(struct mcp *mcp, unsigned int divisor) in mcp_sa11x0_set_telecom_divisor() argument
49 divisor /= 32; in mcp_sa11x0_set_telecom_divisor()
52 m->mccr0 |= divisor << 8; in mcp_sa11x0_set_telecom_divisor()
57 mcp_sa11x0_set_audio_divisor(struct mcp *mcp, unsigned int divisor) in mcp_sa11x0_set_audio_divisor() argument
61 divisor /= 32; in mcp_sa11x0_set_audio_divisor()
64 m->mccr0 |= divisor; in mcp_sa11x0_set_audio_divisor()
/linux/arch/m68k/ifpsp060/src/
H A Dilsp.S74 # 0x4(sp) = divisor #
89 # codes before performing the final "rts". If the divisor was equal to #
134 mov.l 0x8(%a6),%d7 # fetch divisor
136 beq.w ldiv64eq0 # divisor is = 0!!!
145 # save the sign of the divisor
146 # make divisor unsigned if it's negative
165 # - is (hi(dividend) == 0 && (divisor <= lo(dividend))) ? (32-bit div)
173 cmp.l %d7,%d6 # is (divisor <= lo(dividend))
272 # where U,V are words of the quadword dividend and longword divisor, #
276 # in %d6. The divisor must be in the variable ddivisor, and the #
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