Searched refs:invsqrt (Results 1 - 4 of 4) sorted by relevance
| /kernel/linux/linux-5.10/include/net/ |
| H A D | codel_impl.h | 72 * new_invsqrt = (invsqrt / 2) * (3 - count * invsqrt^2)
74 * Here, invsqrt is a fixed point number (< 1.0), 32bit mantissa, aka Q0.32
78 u32 invsqrt = ((u32)vars->rec_inv_sqrt) << REC_INV_SQRT_SHIFT; in codel_Newton_step() local
79 u32 invsqrt2 = ((u64)invsqrt * invsqrt) >> 32; in codel_Newton_step()
83 val = (val * invsqrt) >> (32 - 2 + 1); in codel_Newton_step()
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| /kernel/linux/linux-6.6/include/net/ |
| H A D | codel_impl.h | 76 * new_invsqrt = (invsqrt / 2) * (3 - count * invsqrt^2)
78 * Here, invsqrt is a fixed point number (< 1.0), 32bit mantissa, aka Q0.32
82 u32 invsqrt = ((u32)vars->rec_inv_sqrt) << REC_INV_SQRT_SHIFT; in codel_Newton_step() local
83 u32 invsqrt2 = ((u64)invsqrt * invsqrt) >> 32; in codel_Newton_step()
87 val = (val * invsqrt) >> (32 - 2 + 1); in codel_Newton_step()
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| /kernel/linux/linux-5.10/net/sched/ |
| H A D | sch_cake.c | 367 * new_invsqrt = (invsqrt / 2) * (3 - count * invsqrt^2)
369 * Here, invsqrt is a fixed point number (< 1.0), 32bit mantissa, aka Q0.32
374 u32 invsqrt, invsqrt2; in cobalt_newton_step() local
377 invsqrt = vars->rec_inv_sqrt; in cobalt_newton_step()
378 invsqrt2 = ((u64)invsqrt * invsqrt) >> 32; in cobalt_newton_step()
382 val = (val * invsqrt) >> (32 - 2 + 1); in cobalt_newton_step()
524 * both the '0' and '1' entries in the invsqrt cache are 0xFFFFFFFF, as close in cobalt_should_drop()
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| /kernel/linux/linux-6.6/net/sched/ |
| H A D | sch_cake.c | 368 * new_invsqrt = (invsqrt / 2) * (3 - count * invsqrt^2)
370 * Here, invsqrt is a fixed point number (< 1.0), 32bit mantissa, aka Q0.32
375 u32 invsqrt, invsqrt2; in cobalt_newton_step() local
378 invsqrt = vars->rec_inv_sqrt; in cobalt_newton_step()
379 invsqrt2 = ((u64)invsqrt * invsqrt) >> 32; in cobalt_newton_step()
383 val = (val * invsqrt) >> (32 - 2 + 1); in cobalt_newton_step()
525 * both the '0' and '1' entries in the invsqrt cache are 0xFFFFFFFF, as close in cobalt_should_drop()
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