Searched refs:div_q (Results 1 - 2 of 2) sorted by relevance
/kernel/linux/linux-5.10/drivers/gpu/drm/imx/dcss/ |
H A D | dcss-scaler.c | 122 * div_q() - Performs fixed-point division. 126 static int div_q(int A, int B) in div_q() function 151 term = mult_q(term, div_q(x, 1 << PSC_Q_FRACTION)); in exp_approx_q() 153 term = mult_q(term, div_q(x, 2 << PSC_Q_FRACTION)); in exp_approx_q() 155 term = mult_q(term, div_q(x, 3 << PSC_Q_FRACTION)); in exp_approx_q() 157 term = mult_q(term, div_q(x, 4 << PSC_Q_FRACTION)); in exp_approx_q() 194 sigma_q = div_q(PSC_Q_ROUND_OFFSET, fc_q); in dcss_scaler_gaussian_filter() 196 g1_q = exp_approx_q(div_q(-PSC_Q_ROUND_OFFSET, in dcss_scaler_gaussian_filter() 262 fc_q = div_q(1, PSC_NUM_PHASES); in dcss_scaler_filter_design() 264 fc_q = div_q(dst_lengt in dcss_scaler_filter_design() [all...] |
/kernel/linux/linux-6.6/drivers/gpu/drm/imx/dcss/ |
H A D | dcss-scaler.c | 124 * div_q() - Performs fixed-point division. 128 static int div_q(int A, int B) in div_q() function 153 term = mult_q(term, div_q(x, 1 << PSC_Q_FRACTION)); in exp_approx_q() 155 term = mult_q(term, div_q(x, 2 << PSC_Q_FRACTION)); in exp_approx_q() 157 term = mult_q(term, div_q(x, 3 << PSC_Q_FRACTION)); in exp_approx_q() 159 term = mult_q(term, div_q(x, 4 << PSC_Q_FRACTION)); in exp_approx_q() 196 sigma_q = div_q(PSC_Q_ROUND_OFFSET, fc_q); in dcss_scaler_gaussian_filter() 198 g1_q = exp_approx_q(div_q(-PSC_Q_ROUND_OFFSET, in dcss_scaler_gaussian_filter() 276 fc_q = div_q(1, PSC_NUM_PHASES); in dcss_scaler_filter_design() 278 fc_q = div_q(dst_lengt in dcss_scaler_filter_design() [all...] |
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