From 68adac5e49436992e9c999fbae879d9ac5b72d4e Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 28 Apr 2010 11:46:42 +1000 Subject: drm: move radeon_fixed.h to shared drm_fixed.h header Will be used by nouveau driver also in the near future. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 2 +- drivers/gpu/drm/radeon/r100.c | 194 +++++++++---------- drivers/gpu/drm/radeon/radeon_device.c | 24 +-- drivers/gpu/drm/radeon/radeon_display.c | 68 +++---- drivers/gpu/drm/radeon/radeon_fixed.h | 67 ------- drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 2 +- drivers/gpu/drm/radeon/radeon_mode.h | 2 +- drivers/gpu/drm/radeon/rs690.c | 280 ++++++++++++++-------------- drivers/gpu/drm/radeon/rv515.c | 188 +++++++++---------- include/drm/drm_fixed.h | 67 +++++++ 10 files changed, 447 insertions(+), 447 deletions(-) delete mode 100644 drivers/gpu/drm/radeon/radeon_fixed.h create mode 100644 include/drm/drm_fixed.h diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index b11aa37ed6d5..4151ad8affed 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -26,7 +26,7 @@ #include #include #include -#include "radeon_fixed.h" +#include #include "radeon.h" #include "atom.h" #include "atom-bits.h" diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 87c4ffaf545e..a5f11c300f6a 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -2686,53 +2686,53 @@ void r100_bandwidth_update(struct radeon_device *rdev) fixed20_12 peak_disp_bw, mem_bw, pix_clk, pix_clk2, temp_ff, crit_point_ff; uint32_t temp, data, mem_trcd, mem_trp, mem_tras; fixed20_12 memtcas_ff[8] = { - fixed_init(1), - fixed_init(2), - fixed_init(3), - fixed_init(0), - fixed_init_half(1), - fixed_init_half(2), - fixed_init(0), + dfixed_init(1), + dfixed_init(2), + dfixed_init(3), + dfixed_init(0), + dfixed_init_half(1), + dfixed_init_half(2), + dfixed_init(0), }; fixed20_12 memtcas_rs480_ff[8] = { - fixed_init(0), - fixed_init(1), - fixed_init(2), - fixed_init(3), - fixed_init(0), - fixed_init_half(1), - fixed_init_half(2), - fixed_init_half(3), + dfixed_init(0), + dfixed_init(1), + dfixed_init(2), + dfixed_init(3), + dfixed_init(0), + dfixed_init_half(1), + dfixed_init_half(2), + dfixed_init_half(3), }; fixed20_12 memtcas2_ff[8] = { - fixed_init(0), - fixed_init(1), - fixed_init(2), - fixed_init(3), - fixed_init(4), - fixed_init(5), - fixed_init(6), - fixed_init(7), + dfixed_init(0), + dfixed_init(1), + dfixed_init(2), + dfixed_init(3), + dfixed_init(4), + dfixed_init(5), + dfixed_init(6), + dfixed_init(7), }; fixed20_12 memtrbs[8] = { - fixed_init(1), - fixed_init_half(1), - fixed_init(2), - fixed_init_half(2), - fixed_init(3), - fixed_init_half(3), - fixed_init(4), - fixed_init_half(4) + dfixed_init(1), + dfixed_init_half(1), + dfixed_init(2), + dfixed_init_half(2), + dfixed_init(3), + dfixed_init_half(3), + dfixed_init(4), + dfixed_init_half(4) }; fixed20_12 memtrbs_r4xx[8] = { - fixed_init(4), - fixed_init(5), - fixed_init(6), - fixed_init(7), - fixed_init(8), - fixed_init(9), - fixed_init(10), - fixed_init(11) + dfixed_init(4), + dfixed_init(5), + dfixed_init(6), + dfixed_init(7), + dfixed_init(8), + dfixed_init(9), + dfixed_init(10), + dfixed_init(11) }; fixed20_12 min_mem_eff; fixed20_12 mc_latency_sclk, mc_latency_mclk, k1; @@ -2763,7 +2763,7 @@ void r100_bandwidth_update(struct radeon_device *rdev) } } - min_mem_eff.full = rfixed_const_8(0); + min_mem_eff.full = dfixed_const_8(0); /* get modes */ if ((rdev->disp_priority == 2) && ASIC_IS_R300(rdev)) { uint32_t mc_init_misc_lat_timer = RREG32(R300_MC_INIT_MISC_LAT_TIMER); @@ -2784,28 +2784,28 @@ void r100_bandwidth_update(struct radeon_device *rdev) mclk_ff = rdev->pm.mclk; temp = (rdev->mc.vram_width / 8) * (rdev->mc.vram_is_ddr ? 2 : 1); - temp_ff.full = rfixed_const(temp); - mem_bw.full = rfixed_mul(mclk_ff, temp_ff); + temp_ff.full = dfixed_const(temp); + mem_bw.full = dfixed_mul(mclk_ff, temp_ff); pix_clk.full = 0; pix_clk2.full = 0; peak_disp_bw.full = 0; if (mode1) { - temp_ff.full = rfixed_const(1000); - pix_clk.full = rfixed_const(mode1->clock); /* convert to fixed point */ - pix_clk.full = rfixed_div(pix_clk, temp_ff); - temp_ff.full = rfixed_const(pixel_bytes1); - peak_disp_bw.full += rfixed_mul(pix_clk, temp_ff); + temp_ff.full = dfixed_const(1000); + pix_clk.full = dfixed_const(mode1->clock); /* convert to fixed point */ + pix_clk.full = dfixed_div(pix_clk, temp_ff); + temp_ff.full = dfixed_const(pixel_bytes1); + peak_disp_bw.full += dfixed_mul(pix_clk, temp_ff); } if (mode2) { - temp_ff.full = rfixed_const(1000); - pix_clk2.full = rfixed_const(mode2->clock); /* convert to fixed point */ - pix_clk2.full = rfixed_div(pix_clk2, temp_ff); - temp_ff.full = rfixed_const(pixel_bytes2); - peak_disp_bw.full += rfixed_mul(pix_clk2, temp_ff); + temp_ff.full = dfixed_const(1000); + pix_clk2.full = dfixed_const(mode2->clock); /* convert to fixed point */ + pix_clk2.full = dfixed_div(pix_clk2, temp_ff); + temp_ff.full = dfixed_const(pixel_bytes2); + peak_disp_bw.full += dfixed_mul(pix_clk2, temp_ff); } - mem_bw.full = rfixed_mul(mem_bw, min_mem_eff); + mem_bw.full = dfixed_mul(mem_bw, min_mem_eff); if (peak_disp_bw.full >= mem_bw.full) { DRM_ERROR("You may not have enough display bandwidth for current mode\n" "If you have flickering problem, try to lower resolution, refresh rate, or color depth\n"); @@ -2847,9 +2847,9 @@ void r100_bandwidth_update(struct radeon_device *rdev) mem_tras = ((temp >> 12) & 0xf) + 4; } /* convert to FF */ - trcd_ff.full = rfixed_const(mem_trcd); - trp_ff.full = rfixed_const(mem_trp); - tras_ff.full = rfixed_const(mem_tras); + trcd_ff.full = dfixed_const(mem_trcd); + trp_ff.full = dfixed_const(mem_trp); + tras_ff.full = dfixed_const(mem_tras); /* Get values from the MEM_SDRAM_MODE_REG register...converting its */ temp = RREG32(RADEON_MEM_SDRAM_MODE_REG); @@ -2867,7 +2867,7 @@ void r100_bandwidth_update(struct radeon_device *rdev) /* extra cas latency stored in bits 23-25 0-4 clocks */ data = (temp >> 23) & 0x7; if (data < 5) - tcas_ff.full += rfixed_const(data); + tcas_ff.full += dfixed_const(data); } if (ASIC_IS_R300(rdev) && !(rdev->flags & RADEON_IS_IGP)) { @@ -2904,72 +2904,72 @@ void r100_bandwidth_update(struct radeon_device *rdev) if (rdev->flags & RADEON_IS_AGP) { fixed20_12 agpmode_ff; - agpmode_ff.full = rfixed_const(radeon_agpmode); - temp_ff.full = rfixed_const_666(16); - sclk_eff_ff.full -= rfixed_mul(agpmode_ff, temp_ff); + agpmode_ff.full = dfixed_const(radeon_agpmode); + temp_ff.full = dfixed_const_666(16); + sclk_eff_ff.full -= dfixed_mul(agpmode_ff, temp_ff); } /* TODO PCIE lanes may affect this - agpmode == 16?? */ if (ASIC_IS_R300(rdev)) { - sclk_delay_ff.full = rfixed_const(250); + sclk_delay_ff.full = dfixed_const(250); } else { if ((rdev->family == CHIP_RV100) || rdev->flags & RADEON_IS_IGP) { if (rdev->mc.vram_is_ddr) - sclk_delay_ff.full = rfixed_const(41); + sclk_delay_ff.full = dfixed_const(41); else - sclk_delay_ff.full = rfixed_const(33); + sclk_delay_ff.full = dfixed_const(33); } else { if (rdev->mc.vram_width == 128) - sclk_delay_ff.full = rfixed_const(57); + sclk_delay_ff.full = dfixed_const(57); else - sclk_delay_ff.full = rfixed_const(41); + sclk_delay_ff.full = dfixed_const(41); } } - mc_latency_sclk.full = rfixed_div(sclk_delay_ff, sclk_eff_ff); + mc_latency_sclk.full = dfixed_div(sclk_delay_ff, sclk_eff_ff); if (rdev->mc.vram_is_ddr) { if (rdev->mc.vram_width == 32) { - k1.full = rfixed_const(40); + k1.full = dfixed_const(40); c = 3; } else { - k1.full = rfixed_const(20); + k1.full = dfixed_const(20); c = 1; } } else { - k1.full = rfixed_const(40); + k1.full = dfixed_const(40); c = 3; } - temp_ff.full = rfixed_const(2); - mc_latency_mclk.full = rfixed_mul(trcd_ff, temp_ff); - temp_ff.full = rfixed_const(c); - mc_latency_mclk.full += rfixed_mul(tcas_ff, temp_ff); - temp_ff.full = rfixed_const(4); - mc_latency_mclk.full += rfixed_mul(tras_ff, temp_ff); - mc_latency_mclk.full += rfixed_mul(trp_ff, temp_ff); + temp_ff.full = dfixed_const(2); + mc_latency_mclk.full = dfixed_mul(trcd_ff, temp_ff); + temp_ff.full = dfixed_const(c); + mc_latency_mclk.full += dfixed_mul(tcas_ff, temp_ff); + temp_ff.full = dfixed_const(4); + mc_latency_mclk.full += dfixed_mul(tras_ff, temp_ff); + mc_latency_mclk.full += dfixed_mul(trp_ff, temp_ff); mc_latency_mclk.full += k1.full; - mc_latency_mclk.full = rfixed_div(mc_latency_mclk, mclk_ff); - mc_latency_mclk.full += rfixed_div(temp_ff, sclk_eff_ff); + mc_latency_mclk.full = dfixed_div(mc_latency_mclk, mclk_ff); + mc_latency_mclk.full += dfixed_div(temp_ff, sclk_eff_ff); /* HW cursor time assuming worst case of full size colour cursor. */ - temp_ff.full = rfixed_const((2 * (cur_size - (rdev->mc.vram_is_ddr + 1)))); + temp_ff.full = dfixed_const((2 * (cur_size - (rdev->mc.vram_is_ddr + 1)))); temp_ff.full += trcd_ff.full; if (temp_ff.full < tras_ff.full) temp_ff.full = tras_ff.full; - cur_latency_mclk.full = rfixed_div(temp_ff, mclk_ff); + cur_latency_mclk.full = dfixed_div(temp_ff, mclk_ff); - temp_ff.full = rfixed_const(cur_size); - cur_latency_sclk.full = rfixed_div(temp_ff, sclk_eff_ff); + temp_ff.full = dfixed_const(cur_size); + cur_latency_sclk.full = dfixed_div(temp_ff, sclk_eff_ff); /* Find the total latency for the display data. */ - disp_latency_overhead.full = rfixed_const(8); - disp_latency_overhead.full = rfixed_div(disp_latency_overhead, sclk_ff); + disp_latency_overhead.full = dfixed_const(8); + disp_latency_overhead.full = dfixed_div(disp_latency_overhead, sclk_ff); mc_latency_mclk.full += disp_latency_overhead.full + cur_latency_mclk.full; mc_latency_sclk.full += disp_latency_overhead.full + cur_latency_sclk.full; @@ -2997,16 +2997,16 @@ void r100_bandwidth_update(struct radeon_device *rdev) /* Find the drain rate of the display buffer. */ - temp_ff.full = rfixed_const((16/pixel_bytes1)); - disp_drain_rate.full = rfixed_div(pix_clk, temp_ff); + temp_ff.full = dfixed_const((16/pixel_bytes1)); + disp_drain_rate.full = dfixed_div(pix_clk, temp_ff); /* Find the critical point of the display buffer. */ - crit_point_ff.full = rfixed_mul(disp_drain_rate, disp_latency); - crit_point_ff.full += rfixed_const_half(0); + crit_point_ff.full = dfixed_mul(disp_drain_rate, disp_latency); + crit_point_ff.full += dfixed_const_half(0); - critical_point = rfixed_trunc(crit_point_ff); + critical_point = dfixed_trunc(crit_point_ff); if (rdev->disp_priority == 2) { critical_point = 0; @@ -3077,8 +3077,8 @@ void r100_bandwidth_update(struct radeon_device *rdev) /* Find the drain rate of the display buffer. */ - temp_ff.full = rfixed_const((16/pixel_bytes2)); - disp_drain_rate2.full = rfixed_div(pix_clk2, temp_ff); + temp_ff.full = dfixed_const((16/pixel_bytes2)); + disp_drain_rate2.full = dfixed_div(pix_clk2, temp_ff); grph2_cntl = RREG32(RADEON_GRPH2_BUFFER_CNTL); grph2_cntl &= ~(RADEON_GRPH_STOP_REQ_MASK); @@ -3099,8 +3099,8 @@ void r100_bandwidth_update(struct radeon_device *rdev) critical_point2 = 0; else { temp = (rdev->mc.vram_width * rdev->mc.vram_is_ddr + 1)/128; - temp_ff.full = rfixed_const(temp); - temp_ff.full = rfixed_mul(mclk_ff, temp_ff); + temp_ff.full = dfixed_const(temp); + temp_ff.full = dfixed_mul(mclk_ff, temp_ff); if (sclk_ff.full < temp_ff.full) temp_ff.full = sclk_ff.full; @@ -3108,15 +3108,15 @@ void r100_bandwidth_update(struct radeon_device *rdev) if (mode1) { temp_ff.full = read_return_rate.full - disp_drain_rate.full; - time_disp1_drop_priority.full = rfixed_div(crit_point_ff, temp_ff); + time_disp1_drop_priority.full = dfixed_div(crit_point_ff, temp_ff); } else { time_disp1_drop_priority.full = 0; } crit_point_ff.full = disp_latency.full + time_disp1_drop_priority.full + disp_latency.full; - crit_point_ff.full = rfixed_mul(crit_point_ff, disp_drain_rate2); - crit_point_ff.full += rfixed_const_half(0); + crit_point_ff.full = dfixed_mul(crit_point_ff, disp_drain_rate2); + crit_point_ff.full += dfixed_const_half(0); - critical_point2 = rfixed_trunc(crit_point_ff); + critical_point2 = dfixed_trunc(crit_point_ff); if (rdev->disp_priority == 2) { critical_point2 = 0; diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 0372ec96020f..e249da81dbfc 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -299,24 +299,24 @@ void radeon_update_bandwidth_info(struct radeon_device *rdev) sclk = radeon_get_engine_clock(rdev); mclk = rdev->clock.default_mclk; - a.full = rfixed_const(100); - rdev->pm.sclk.full = rfixed_const(sclk); - rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a); - rdev->pm.mclk.full = rfixed_const(mclk); - rdev->pm.mclk.full = rfixed_div(rdev->pm.mclk, a); + a.full = dfixed_const(100); + rdev->pm.sclk.full = dfixed_const(sclk); + rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a); + rdev->pm.mclk.full = dfixed_const(mclk); + rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a); - a.full = rfixed_const(16); + a.full = dfixed_const(16); /* core_bandwidth = sclk(Mhz) * 16 */ - rdev->pm.core_bandwidth.full = rfixed_div(rdev->pm.sclk, a); + rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a); } else { sclk = radeon_get_engine_clock(rdev); mclk = radeon_get_memory_clock(rdev); - a.full = rfixed_const(100); - rdev->pm.sclk.full = rfixed_const(sclk); - rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a); - rdev->pm.mclk.full = rfixed_const(mclk); - rdev->pm.mclk.full = rfixed_div(rdev->pm.mclk, a); + a.full = dfixed_const(100); + rdev->pm.sclk.full = dfixed_const(sclk); + rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a); + rdev->pm.mclk.full = dfixed_const(mclk); + rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a); } } diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index bc9cc9211e67..10d70540fc50 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -633,37 +633,37 @@ calc_fb_div(struct radeon_pll *pll, vco_freq = freq * post_div; /* feedback_divider = vco_freq * ref_div / pll->reference_freq; */ - a.full = rfixed_const(pll->reference_freq); - feedback_divider.full = rfixed_const(vco_freq); - feedback_divider.full = rfixed_div(feedback_divider, a); - a.full = rfixed_const(ref_div); - feedback_divider.full = rfixed_mul(feedback_divider, a); + a.full = dfixed_const(pll->reference_freq); + feedback_divider.full = dfixed_const(vco_freq); + feedback_divider.full = dfixed_div(feedback_divider, a); + a.full = dfixed_const(ref_div); + feedback_divider.full = dfixed_mul(feedback_divider, a); if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { /* feedback_divider = floor((feedback_divider * 10.0) + 0.5) * 0.1; */ - a.full = rfixed_const(10); - feedback_divider.full = rfixed_mul(feedback_divider, a); - feedback_divider.full += rfixed_const_half(0); - feedback_divider.full = rfixed_floor(feedback_divider); - feedback_divider.full = rfixed_div(feedback_divider, a); + a.full = dfixed_const(10); + feedback_divider.full = dfixed_mul(feedback_divider, a); + feedback_divider.full += dfixed_const_half(0); + feedback_divider.full = dfixed_floor(feedback_divider); + feedback_divider.full = dfixed_div(feedback_divider, a); /* *fb_div = floor(feedback_divider); */ - a.full = rfixed_floor(feedback_divider); - *fb_div = rfixed_trunc(a); + a.full = dfixed_floor(feedback_divider); + *fb_div = dfixed_trunc(a); /* *fb_div_frac = fmod(feedback_divider, 1.0) * 10.0; */ - a.full = rfixed_const(10); - b.full = rfixed_mul(feedback_divider, a); + a.full = dfixed_const(10); + b.full = dfixed_mul(feedback_divider, a); - feedback_divider.full = rfixed_floor(feedback_divider); - feedback_divider.full = rfixed_mul(feedback_divider, a); + feedback_divider.full = dfixed_floor(feedback_divider); + feedback_divider.full = dfixed_mul(feedback_divider, a); feedback_divider.full = b.full - feedback_divider.full; - *fb_div_frac = rfixed_trunc(feedback_divider); + *fb_div_frac = dfixed_trunc(feedback_divider); } else { /* *fb_div = floor(feedback_divider + 0.5); */ - feedback_divider.full += rfixed_const_half(0); - feedback_divider.full = rfixed_floor(feedback_divider); + feedback_divider.full += dfixed_const_half(0); + feedback_divider.full = dfixed_floor(feedback_divider); - *fb_div = rfixed_trunc(feedback_divider); + *fb_div = dfixed_trunc(feedback_divider); *fb_div_frac = 0; } @@ -693,10 +693,10 @@ calc_fb_ref_div(struct radeon_pll *pll, pll_out_max = pll->pll_out_max; } - ffreq.full = rfixed_const(freq); + ffreq.full = dfixed_const(freq); /* max_error = ffreq * 0.0025; */ - a.full = rfixed_const(400); - max_error.full = rfixed_div(ffreq, a); + a.full = dfixed_const(400); + max_error.full = dfixed_div(ffreq, a); for ((*ref_div) = pll->min_ref_div; (*ref_div) < pll->max_ref_div; ++(*ref_div)) { if (calc_fb_div(pll, freq, post_div, (*ref_div), fb_div, fb_div_frac)) { @@ -707,9 +707,9 @@ calc_fb_ref_div(struct radeon_pll *pll, continue; /* pll_out = vco / post_div; */ - a.full = rfixed_const(post_div); - pll_out.full = rfixed_const(vco); - pll_out.full = rfixed_div(pll_out, a); + a.full = dfixed_const(post_div); + pll_out.full = dfixed_const(vco); + pll_out.full = dfixed_div(pll_out, a); if (pll_out.full >= ffreq.full) { error.full = pll_out.full - ffreq.full; @@ -1099,15 +1099,15 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, } if (radeon_crtc->rmx_type != RMX_OFF) { fixed20_12 a, b; - a.full = rfixed_const(crtc->mode.vdisplay); - b.full = rfixed_const(radeon_crtc->native_mode.hdisplay); - radeon_crtc->vsc.full = rfixed_div(a, b); - a.full = rfixed_const(crtc->mode.hdisplay); - b.full = rfixed_const(radeon_crtc->native_mode.vdisplay); - radeon_crtc->hsc.full = rfixed_div(a, b); + a.full = dfixed_const(crtc->mode.vdisplay); + b.full = dfixed_const(radeon_crtc->native_mode.hdisplay); + radeon_crtc->vsc.full = dfixed_div(a, b); + a.full = dfixed_const(crtc->mode.hdisplay); + b.full = dfixed_const(radeon_crtc->native_mode.vdisplay); + radeon_crtc->hsc.full = dfixed_div(a, b); } else { - radeon_crtc->vsc.full = rfixed_const(1); - radeon_crtc->hsc.full = rfixed_const(1); + radeon_crtc->vsc.full = dfixed_const(1); + radeon_crtc->hsc.full = dfixed_const(1); } return true; } diff --git a/drivers/gpu/drm/radeon/radeon_fixed.h b/drivers/gpu/drm/radeon/radeon_fixed.h deleted file mode 100644 index 3d4d84e078ac..000000000000 --- a/drivers/gpu/drm/radeon/radeon_fixed.h +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Copyright 2009 Red Hat Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: Dave Airlie - */ -#ifndef RADEON_FIXED_H -#define RADEON_FIXED_H - -typedef union rfixed { - u32 full; -} fixed20_12; - - -#define rfixed_const(A) (u32)(((A) << 12))/* + ((B + 0.000122)*4096)) */ -#define rfixed_const_half(A) (u32)(((A) << 12) + 2048) -#define rfixed_const_666(A) (u32)(((A) << 12) + 2731) -#define rfixed_const_8(A) (u32)(((A) << 12) + 3277) -#define rfixed_mul(A, B) ((u64)((u64)(A).full * (B).full + 2048) >> 12) -#define fixed_init(A) { .full = rfixed_const((A)) } -#define fixed_init_half(A) { .full = rfixed_const_half((A)) } -#define rfixed_trunc(A) ((A).full >> 12) - -static inline u32 rfixed_floor(fixed20_12 A) -{ - u32 non_frac = rfixed_trunc(A); - - return rfixed_const(non_frac); -} - -static inline u32 rfixed_ceil(fixed20_12 A) -{ - u32 non_frac = rfixed_trunc(A); - - if (A.full > rfixed_const(non_frac)) - return rfixed_const(non_frac + 1); - else - return rfixed_const(non_frac); -} - -static inline u32 rfixed_div(fixed20_12 A, fixed20_12 B) -{ - u64 tmp = ((u64)A.full << 13); - - do_div(tmp, B.full); - tmp += 1; - tmp /= 2; - return lower_32_bits(tmp); -} -#endif diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c index f4f9cb297e36..7701d42c4804 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c @@ -26,7 +26,7 @@ #include #include #include -#include "radeon_fixed.h" +#include #include "radeon.h" #include "atom.h" diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 061a2a6801cc..38c0b63e9bbd 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -34,10 +34,10 @@ #include #include #include +#include #include #include #include -#include "radeon_fixed.h" struct radeon_bo; struct radeon_device; diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index 56a0aec84af2..e8edfe617286 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -76,59 +76,59 @@ void rs690_pm_info(struct radeon_device *rdev) /* Get various system informations from bios */ switch (crev) { case 1: - tmp.full = rfixed_const(100); - rdev->pm.igp_sideport_mclk.full = rfixed_const(info->info.ulBootUpMemoryClock); - rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp); - rdev->pm.igp_system_mclk.full = rfixed_const(le16_to_cpu(info->info.usK8MemoryClock)); - rdev->pm.igp_ht_link_clk.full = rfixed_const(le16_to_cpu(info->info.usFSBClock)); - rdev->pm.igp_ht_link_width.full = rfixed_const(info->info.ucHTLinkWidth); + tmp.full = dfixed_const(100); + rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info.ulBootUpMemoryClock); + rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); + rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock)); + rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock)); + rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth); break; case 2: - tmp.full = rfixed_const(100); - rdev->pm.igp_sideport_mclk.full = rfixed_const(info->info_v2.ulBootUpSidePortClock); - rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp); - rdev->pm.igp_system_mclk.full = rfixed_const(info->info_v2.ulBootUpUMAClock); - rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp); - rdev->pm.igp_ht_link_clk.full = rfixed_const(info->info_v2.ulHTLinkFreq); - rdev->pm.igp_ht_link_clk.full = rfixed_div(rdev->pm.igp_ht_link_clk, tmp); - rdev->pm.igp_ht_link_width.full = rfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth)); + tmp.full = dfixed_const(100); + rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info_v2.ulBootUpSidePortClock); + rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); + rdev->pm.igp_system_mclk.full = dfixed_const(info->info_v2.ulBootUpUMAClock); + rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); + rdev->pm.igp_ht_link_clk.full = dfixed_const(info->info_v2.ulHTLinkFreq); + rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp); + rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth)); break; default: - tmp.full = rfixed_const(100); + tmp.full = dfixed_const(100); /* We assume the slower possible clock ie worst case */ /* DDR 333Mhz */ - rdev->pm.igp_sideport_mclk.full = rfixed_const(333); + rdev->pm.igp_sideport_mclk.full = dfixed_const(333); /* FIXME: system clock ? */ - rdev->pm.igp_system_mclk.full = rfixed_const(100); - rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp); - rdev->pm.igp_ht_link_clk.full = rfixed_const(200); - rdev->pm.igp_ht_link_width.full = rfixed_const(8); + rdev->pm.igp_system_mclk.full = dfixed_const(100); + rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); + rdev->pm.igp_ht_link_clk.full = dfixed_const(200); + rdev->pm.igp_ht_link_width.full = dfixed_const(8); DRM_ERROR("No integrated system info for your GPU, using safe default\n"); break; } } else { - tmp.full = rfixed_const(100); + tmp.full = dfixed_const(100); /* We assume the slower possible clock ie worst case */ /* DDR 333Mhz */ - rdev->pm.igp_sideport_mclk.full = rfixed_const(333); + rdev->pm.igp_sideport_mclk.full = dfixed_const(333); /* FIXME: system clock ? */ - rdev->pm.igp_system_mclk.full = rfixed_const(100); - rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp); - rdev->pm.igp_ht_link_clk.full = rfixed_const(200); - rdev->pm.igp_ht_link_width.full = rfixed_const(8); + rdev->pm.igp_system_mclk.full = dfixed_const(100); + rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); + rdev->pm.igp_ht_link_clk.full = dfixed_const(200); + rdev->pm.igp_ht_link_width.full = dfixed_const(8); DRM_ERROR("No integrated system info for your GPU, using safe default\n"); } /* Compute various bandwidth */ /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4 */ - tmp.full = rfixed_const(4); - rdev->pm.k8_bandwidth.full = rfixed_mul(rdev->pm.igp_system_mclk, tmp); + tmp.full = dfixed_const(4); + rdev->pm.k8_bandwidth.full = dfixed_mul(rdev->pm.igp_system_mclk, tmp); /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8 * = ht_clk * ht_width / 5 */ - tmp.full = rfixed_const(5); - rdev->pm.ht_bandwidth.full = rfixed_mul(rdev->pm.igp_ht_link_clk, + tmp.full = dfixed_const(5); + rdev->pm.ht_bandwidth.full = dfixed_mul(rdev->pm.igp_ht_link_clk, rdev->pm.igp_ht_link_width); - rdev->pm.ht_bandwidth.full = rfixed_div(rdev->pm.ht_bandwidth, tmp); + rdev->pm.ht_bandwidth.full = dfixed_div(rdev->pm.ht_bandwidth, tmp); if (tmp.full < rdev->pm.max_bandwidth.full) { /* HT link is a limiting factor */ rdev->pm.max_bandwidth.full = tmp.full; @@ -136,10 +136,10 @@ void rs690_pm_info(struct radeon_device *rdev) /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7 * = (sideport_clk * 14) / 10 */ - tmp.full = rfixed_const(14); - rdev->pm.sideport_bandwidth.full = rfixed_mul(rdev->pm.igp_sideport_mclk, tmp); - tmp.full = rfixed_const(10); - rdev->pm.sideport_bandwidth.full = rfixed_div(rdev->pm.sideport_bandwidth, tmp); + tmp.full = dfixed_const(14); + rdev->pm.sideport_bandwidth.full = dfixed_mul(rdev->pm.igp_sideport_mclk, tmp); + tmp.full = dfixed_const(10); + rdev->pm.sideport_bandwidth.full = dfixed_div(rdev->pm.sideport_bandwidth, tmp); } void rs690_mc_init(struct radeon_device *rdev) @@ -239,20 +239,20 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, return; } - if (crtc->vsc.full > rfixed_const(2)) - wm->num_line_pair.full = rfixed_const(2); + if (crtc->vsc.full > dfixed_const(2)) + wm->num_line_pair.full = dfixed_const(2); else - wm->num_line_pair.full = rfixed_const(1); - - b.full = rfixed_const(mode->crtc_hdisplay); - c.full = rfixed_const(256); - a.full = rfixed_div(b, c); - request_fifo_depth.full = rfixed_mul(a, wm->num_line_pair); - request_fifo_depth.full = rfixed_ceil(request_fifo_depth); - if (a.full < rfixed_const(4)) { + wm->num_line_pair.full = dfixed_const(1); + + b.full = dfixed_const(mode->crtc_hdisplay); + c.full = dfixed_const(256); + a.full = dfixed_div(b, c); + request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair); + request_fifo_depth.full = dfixed_ceil(request_fifo_depth); + if (a.full < dfixed_const(4)) { wm->lb_request_fifo_depth = 4; } else { - wm->lb_request_fifo_depth = rfixed_trunc(request_fifo_depth); + wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth); } /* Determine consumption rate @@ -261,23 +261,23 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, * vsc = vertical scaling ratio, defined as source/destination * hsc = horizontal scaling ration, defined as source/destination */ - a.full = rfixed_const(mode->clock); - b.full = rfixed_const(1000); - a.full = rfixed_div(a, b); - pclk.full = rfixed_div(b, a); + a.full = dfixed_const(mode->clock); + b.full = dfixed_const(1000); + a.full = dfixed_div(a, b); + pclk.full = dfixed_div(b, a); if (crtc->rmx_type != RMX_OFF) { - b.full = rfixed_const(2); + b.full = dfixed_const(2); if (crtc->vsc.full > b.full) b.full = crtc->vsc.full; - b.full = rfixed_mul(b, crtc->hsc); - c.full = rfixed_const(2); - b.full = rfixed_div(b, c); - consumption_time.full = rfixed_div(pclk, b); + b.full = dfixed_mul(b, crtc->hsc); + c.full = dfixed_const(2); + b.full = dfixed_div(b, c); + consumption_time.full = dfixed_div(pclk, b); } else { consumption_time.full = pclk.full; } - a.full = rfixed_const(1); - wm->consumption_rate.full = rfixed_div(a, consumption_time); + a.full = dfixed_const(1); + wm->consumption_rate.full = dfixed_div(a, consumption_time); /* Determine line time @@ -285,18 +285,18 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, * LineTime = total number of horizontal pixels * pclk = pixel clock period(ns) */ - a.full = rfixed_const(crtc->base.mode.crtc_htotal); - line_time.full = rfixed_mul(a, pclk); + a.full = dfixed_const(crtc->base.mode.crtc_htotal); + line_time.full = dfixed_mul(a, pclk); /* Determine active time * ActiveTime = time of active region of display within one line, * hactive = total number of horizontal active pixels * htotal = total number of horizontal pixels */ - a.full = rfixed_const(crtc->base.mode.crtc_htotal); - b.full = rfixed_const(crtc->base.mode.crtc_hdisplay); - wm->active_time.full = rfixed_mul(line_time, b); - wm->active_time.full = rfixed_div(wm->active_time, a); + a.full = dfixed_const(crtc->base.mode.crtc_htotal); + b.full = dfixed_const(crtc->base.mode.crtc_hdisplay); + wm->active_time.full = dfixed_mul(line_time, b); + wm->active_time.full = dfixed_div(wm->active_time, a); /* Maximun bandwidth is the minimun bandwidth of all component */ rdev->pm.max_bandwidth = rdev->pm.core_bandwidth; @@ -304,8 +304,8 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full && rdev->pm.sideport_bandwidth.full) rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth; - read_delay_latency.full = rfixed_const(370 * 800 * 1000); - read_delay_latency.full = rfixed_div(read_delay_latency, + read_delay_latency.full = dfixed_const(370 * 800 * 1000); + read_delay_latency.full = dfixed_div(read_delay_latency, rdev->pm.igp_sideport_mclk); } else { if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full && @@ -314,23 +314,23 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, if (rdev->pm.max_bandwidth.full > rdev->pm.ht_bandwidth.full && rdev->pm.ht_bandwidth.full) rdev->pm.max_bandwidth = rdev->pm.ht_bandwidth; - read_delay_latency.full = rfixed_const(5000); + read_delay_latency.full = dfixed_const(5000); } /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */ - a.full = rfixed_const(16); - rdev->pm.sclk.full = rfixed_mul(rdev->pm.max_bandwidth, a); - a.full = rfixed_const(1000); - rdev->pm.sclk.full = rfixed_div(a, rdev->pm.sclk); + a.full = dfixed_const(16); + rdev->pm.sclk.full = dfixed_mul(rdev->pm.max_bandwidth, a); + a.full = dfixed_const(1000); + rdev->pm.sclk.full = dfixed_div(a, rdev->pm.sclk); /* Determine chunk time * ChunkTime = the time it takes the DCP to send one chunk of data * to the LB which consists of pipeline delay and inter chunk gap * sclk = system clock(ns) */ - a.full = rfixed_const(256 * 13); - chunk_time.full = rfixed_mul(rdev->pm.sclk, a); - a.full = rfixed_const(10); - chunk_time.full = rfixed_div(chunk_time, a); + a.full = dfixed_const(256 * 13); + chunk_time.full = dfixed_mul(rdev->pm.sclk, a); + a.full = dfixed_const(10); + chunk_time.full = dfixed_div(chunk_time, a); /* Determine the worst case latency * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines) @@ -340,13 +340,13 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, * ChunkTime = time it takes the DCP to send one chunk of data to the LB * which consists of pipeline delay and inter chunk gap */ - if (rfixed_trunc(wm->num_line_pair) > 1) { - a.full = rfixed_const(3); - wm->worst_case_latency.full = rfixed_mul(a, chunk_time); + if (dfixed_trunc(wm->num_line_pair) > 1) { + a.full = dfixed_const(3); + wm->worst_case_latency.full = dfixed_mul(a, chunk_time); wm->worst_case_latency.full += read_delay_latency.full; } else { - a.full = rfixed_const(2); - wm->worst_case_latency.full = rfixed_mul(a, chunk_time); + a.full = dfixed_const(2); + wm->worst_case_latency.full = dfixed_mul(a, chunk_time); wm->worst_case_latency.full += read_delay_latency.full; } @@ -360,34 +360,34 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, * of data to the LB which consists of * pipeline delay and inter chunk gap */ - if ((2+wm->lb_request_fifo_depth) >= rfixed_trunc(request_fifo_depth)) { + if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) { tolerable_latency.full = line_time.full; } else { - tolerable_latency.full = rfixed_const(wm->lb_request_fifo_depth - 2); + tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2); tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full; - tolerable_latency.full = rfixed_mul(tolerable_latency, chunk_time); + tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time); tolerable_latency.full = line_time.full - tolerable_latency.full; } /* We assume worst case 32bits (4 bytes) */ - wm->dbpp.full = rfixed_const(4 * 8); + wm->dbpp.full = dfixed_const(4 * 8); /* Determine the maximum priority mark * width = viewport width in pixels */ - a.full = rfixed_const(16); - wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay); - wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a); - wm->priority_mark_max.full = rfixed_ceil(wm->priority_mark_max); + a.full = dfixed_const(16); + wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay); + wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a); + wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max); /* Determine estimated width */ estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full; - estimated_width.full = rfixed_div(estimated_width, consumption_time); - if (rfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) { - wm->priority_mark.full = rfixed_const(10); + estimated_width.full = dfixed_div(estimated_width, consumption_time); + if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) { + wm->priority_mark.full = dfixed_const(10); } else { - a.full = rfixed_const(16); - wm->priority_mark.full = rfixed_div(estimated_width, a); - wm->priority_mark.full = rfixed_ceil(wm->priority_mark); + a.full = dfixed_const(16); + wm->priority_mark.full = dfixed_div(estimated_width, a); + wm->priority_mark.full = dfixed_ceil(wm->priority_mark); wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full; } } @@ -439,58 +439,58 @@ void rs690_bandwidth_update(struct radeon_device *rdev) WREG32(R_006D58_LB_MAX_REQ_OUTSTANDING, tmp); if (mode0 && mode1) { - if (rfixed_trunc(wm0.dbpp) > 64) - a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair); + if (dfixed_trunc(wm0.dbpp) > 64) + a.full = dfixed_mul(wm0.dbpp, wm0.num_line_pair); else a.full = wm0.num_line_pair.full; - if (rfixed_trunc(wm1.dbpp) > 64) - b.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair); + if (dfixed_trunc(wm1.dbpp) > 64) + b.full = dfixed_mul(wm1.dbpp, wm1.num_line_pair); else b.full = wm1.num_line_pair.full; a.full += b.full; - fill_rate.full = rfixed_div(wm0.sclk, a); + fill_rate.full = dfixed_div(wm0.sclk, a); if (wm0.consumption_rate.full > fill_rate.full) { b.full = wm0.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm0.active_time); - a.full = rfixed_mul(wm0.worst_case_latency, + b.full = dfixed_mul(b, wm0.active_time); + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); a.full = a.full + b.full; - b.full = rfixed_const(16 * 1000); - priority_mark02.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark02.full = dfixed_div(a, b); } else { - a.full = rfixed_mul(wm0.worst_case_latency, + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); - b.full = rfixed_const(16 * 1000); - priority_mark02.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark02.full = dfixed_div(a, b); } if (wm1.consumption_rate.full > fill_rate.full) { b.full = wm1.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm1.active_time); - a.full = rfixed_mul(wm1.worst_case_latency, + b.full = dfixed_mul(b, wm1.active_time); + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); a.full = a.full + b.full; - b.full = rfixed_const(16 * 1000); - priority_mark12.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark12.full = dfixed_div(a, b); } else { - a.full = rfixed_mul(wm1.worst_case_latency, + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); - b.full = rfixed_const(16 * 1000); - priority_mark12.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark12.full = dfixed_div(a, b); } if (wm0.priority_mark.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark.full; - if (rfixed_trunc(priority_mark02) < 0) + if (dfixed_trunc(priority_mark02) < 0) priority_mark02.full = 0; if (wm0.priority_mark_max.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark_max.full; if (wm1.priority_mark.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark.full; - if (rfixed_trunc(priority_mark12) < 0) + if (dfixed_trunc(priority_mark12) < 0) priority_mark12.full = 0; if (wm1.priority_mark_max.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark_max.full; - d1mode_priority_a_cnt = rfixed_trunc(priority_mark02); - d2mode_priority_a_cnt = rfixed_trunc(priority_mark12); + d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); + d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); if (rdev->disp_priority == 2) { d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1); d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1); @@ -500,32 +500,32 @@ void rs690_bandwidth_update(struct radeon_device *rdev) WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt); WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt); } else if (mode0) { - if (rfixed_trunc(wm0.dbpp) > 64) - a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair); + if (dfixed_trunc(wm0.dbpp) > 64) + a.full = dfixed_mul(wm0.dbpp, wm0.num_line_pair); else a.full = wm0.num_line_pair.full; - fill_rate.full = rfixed_div(wm0.sclk, a); + fill_rate.full = dfixed_div(wm0.sclk, a); if (wm0.consumption_rate.full > fill_rate.full) { b.full = wm0.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm0.active_time); - a.full = rfixed_mul(wm0.worst_case_latency, + b.full = dfixed_mul(b, wm0.active_time); + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); a.full = a.full + b.full; - b.full = rfixed_const(16 * 1000); - priority_mark02.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark02.full = dfixed_div(a, b); } else { - a.full = rfixed_mul(wm0.worst_case_latency, + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); - b.full = rfixed_const(16 * 1000); - priority_mark02.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark02.full = dfixed_div(a, b); } if (wm0.priority_mark.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark.full; - if (rfixed_trunc(priority_mark02) < 0) + if (dfixed_trunc(priority_mark02) < 0) priority_mark02.full = 0; if (wm0.priority_mark_max.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark_max.full; - d1mode_priority_a_cnt = rfixed_trunc(priority_mark02); + d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); if (rdev->disp_priority == 2) d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1); WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt); @@ -535,32 +535,32 @@ void rs690_bandwidth_update(struct radeon_device *rdev) WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, S_006D4C_D2MODE_PRIORITY_B_OFF(1)); } else { - if (rfixed_trunc(wm1.dbpp) > 64) - a.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair); + if (dfixed_trunc(wm1.dbpp) > 64) + a.full = dfixed_mul(wm1.dbpp, wm1.num_line_pair); else a.full = wm1.num_line_pair.full; - fill_rate.full = rfixed_div(wm1.sclk, a); + fill_rate.full = dfixed_div(wm1.sclk, a); if (wm1.consumption_rate.full > fill_rate.full) { b.full = wm1.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm1.active_time); - a.full = rfixed_mul(wm1.worst_case_latency, + b.full = dfixed_mul(b, wm1.active_time); + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); a.full = a.full + b.full; - b.full = rfixed_const(16 * 1000); - priority_mark12.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark12.full = dfixed_div(a, b); } else { - a.full = rfixed_mul(wm1.worst_case_latency, + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); - b.full = rfixed_const(16 * 1000); - priority_mark12.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark12.full = dfixed_div(a, b); } if (wm1.priority_mark.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark.full; - if (rfixed_trunc(priority_mark12) < 0) + if (dfixed_trunc(priority_mark12) < 0) priority_mark12.full = 0; if (wm1.priority_mark_max.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark_max.full; - d2mode_priority_a_cnt = rfixed_trunc(priority_mark12); + d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); if (rdev->disp_priority == 2) d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1); WREG32(R_006548_D1MODE_PRIORITY_A_CNT, diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c index c513473d72ae..2009f4b20c28 100644 --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -795,20 +795,20 @@ void rv515_crtc_bandwidth_compute(struct radeon_device *rdev, return; } - if (crtc->vsc.full > rfixed_const(2)) - wm->num_line_pair.full = rfixed_const(2); + if (crtc->vsc.full > dfixed_const(2)) + wm->num_line_pair.full = dfixed_const(2); else - wm->num_line_pair.full = rfixed_const(1); - - b.full = rfixed_const(mode->crtc_hdisplay); - c.full = rfixed_const(256); - a.full = rfixed_div(b, c); - request_fifo_depth.full = rfixed_mul(a, wm->num_line_pair); - request_fifo_depth.full = rfixed_ceil(request_fifo_depth); - if (a.full < rfixed_const(4)) { + wm->num_line_pair.full = dfixed_const(1); + + b.full = dfixed_const(mode->crtc_hdisplay); + c.full = dfixed_const(256); + a.full = dfixed_div(b, c); + request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair); + request_fifo_depth.full = dfixed_ceil(request_fifo_depth); + if (a.full < dfixed_const(4)) { wm->lb_request_fifo_depth = 4; } else { - wm->lb_request_fifo_depth = rfixed_trunc(request_fifo_depth); + wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth); } /* Determine consumption rate @@ -817,23 +817,23 @@ void rv515_crtc_bandwidth_compute(struct radeon_device *rdev, * vsc = vertical scaling ratio, defined as source/destination * hsc = horizontal scaling ration, defined as source/destination */ - a.full = rfixed_const(mode->clock); - b.full = rfixed_const(1000); - a.full = rfixed_div(a, b); - pclk.full = rfixed_div(b, a); + a.full = dfixed_const(mode->clock); + b.full = dfixed_const(1000); + a.full = dfixed_div(a, b); + pclk.full = dfixed_div(b, a); if (crtc->rmx_type != RMX_OFF) { - b.full = rfixed_const(2); + b.full = dfixed_const(2); if (crtc->vsc.full > b.full) b.full = crtc->vsc.full; - b.full = rfixed_mul(b, crtc->hsc); - c.full = rfixed_const(2); - b.full = rfixed_div(b, c); - consumption_time.full = rfixed_div(pclk, b); + b.full = dfixed_mul(b, crtc->hsc); + c.full = dfixed_const(2); + b.full = dfixed_div(b, c); + consumption_time.full = dfixed_div(pclk, b); } else { consumption_time.full = pclk.full; } - a.full = rfixed_const(1); - wm->consumption_rate.full = rfixed_div(a, consumption_time); + a.full = dfixed_const(1); + wm->consumption_rate.full = dfixed_div(a, consumption_time); /* Determine line time @@ -841,27 +841,27 @@ void rv515_crtc_bandwidth_compute(struct radeon_device *rdev, * LineTime = total number of horizontal pixels * pclk = pixel clock period(ns) */ - a.full = rfixed_const(crtc->base.mode.crtc_htotal); - line_time.full = rfixed_mul(a, pclk); + a.full = dfixed_const(crtc->base.mode.crtc_htotal); + line_time.full = dfixed_mul(a, pclk); /* Determine active time * ActiveTime = time of active region of display within one line, * hactive = total number of horizontal active pixels * htotal = total number of horizontal pixels */ - a.full = rfixed_const(crtc->base.mode.crtc_htotal); - b.full = rfixed_const(crtc->base.mode.crtc_hdisplay); - wm->active_time.full = rfixed_mul(line_time, b); - wm->active_time.full = rfixed_div(wm->active_time, a); + a.full = dfixed_const(crtc->base.mode.crtc_htotal); + b.full = dfixed_const(crtc->base.mode.crtc_hdisplay); + wm->active_time.full = dfixed_mul(line_time, b); + wm->active_time.full = dfixed_div(wm->active_time, a); /* Determine chunk time * ChunkTime = the time it takes the DCP to send one chunk of data * to the LB which consists of pipeline delay and inter chunk gap * sclk = system clock(Mhz) */ - a.full = rfixed_const(600 * 1000); - chunk_time.full = rfixed_div(a, rdev->pm.sclk); - read_delay_latency.full = rfixed_const(1000); + a.full = dfixed_const(600 * 1000); + chunk_time.full = dfixed_div(a, rdev->pm.sclk); + read_delay_latency.full = dfixed_const(1000); /* Determine the worst case latency * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines) @@ -871,9 +871,9 @@ void rv515_crtc_bandwidth_compute(struct radeon_device *rdev, * ChunkTime = time it takes the DCP to send one chunk of data to the LB * which consists of pipeline delay and inter chunk gap */ - if (rfixed_trunc(wm->num_line_pair) > 1) { - a.full = rfixed_const(3); - wm->worst_case_latency.full = rfixed_mul(a, chunk_time); + if (dfixed_trunc(wm->num_line_pair) > 1) { + a.full = dfixed_const(3); + wm->worst_case_latency.full = dfixed_mul(a, chunk_time); wm->worst_case_latency.full += read_delay_latency.full; } else { wm->worst_case_latency.full = chunk_time.full + read_delay_latency.full; @@ -889,34 +889,34 @@ void rv515_crtc_bandwidth_compute(struct radeon_device *rdev, * of data to the LB which consists of * pipeline delay and inter chunk gap */ - if ((2+wm->lb_request_fifo_depth) >= rfixed_trunc(request_fifo_depth)) { + if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) { tolerable_latency.full = line_time.full; } else { - tolerable_latency.full = rfixed_const(wm->lb_request_fifo_depth - 2); + tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2); tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full; - tolerable_latency.full = rfixed_mul(tolerable_latency, chunk_time); + tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time); tolerable_latency.full = line_time.full - tolerable_latency.full; } /* We assume worst case 32bits (4 bytes) */ - wm->dbpp.full = rfixed_const(2 * 16); + wm->dbpp.full = dfixed_const(2 * 16); /* Determine the maximum priority mark * width = viewport width in pixels */ - a.full = rfixed_const(16); - wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay); - wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a); - wm->priority_mark_max.full = rfixed_ceil(wm->priority_mark_max); + a.full = dfixed_const(16); + wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay); + wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a); + wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max); /* Determine estimated width */ estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full; - estimated_width.full = rfixed_div(estimated_width, consumption_time); - if (rfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) { + estimated_width.full = dfixed_div(estimated_width, consumption_time); + if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) { wm->priority_mark.full = wm->priority_mark_max.full; } else { - a.full = rfixed_const(16); - wm->priority_mark.full = rfixed_div(estimated_width, a); - wm->priority_mark.full = rfixed_ceil(wm->priority_mark); + a.full = dfixed_const(16); + wm->priority_mark.full = dfixed_div(estimated_width, a); + wm->priority_mark.full = dfixed_ceil(wm->priority_mark); wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full; } } @@ -945,58 +945,58 @@ void rv515_bandwidth_avivo_update(struct radeon_device *rdev) WREG32(LB_MAX_REQ_OUTSTANDING, tmp); if (mode0 && mode1) { - if (rfixed_trunc(wm0.dbpp) > 64) - a.full = rfixed_div(wm0.dbpp, wm0.num_line_pair); + if (dfixed_trunc(wm0.dbpp) > 64) + a.full = dfixed_div(wm0.dbpp, wm0.num_line_pair); else a.full = wm0.num_line_pair.full; - if (rfixed_trunc(wm1.dbpp) > 64) - b.full = rfixed_div(wm1.dbpp, wm1.num_line_pair); + if (dfixed_trunc(wm1.dbpp) > 64) + b.full = dfixed_div(wm1.dbpp, wm1.num_line_pair); else b.full = wm1.num_line_pair.full; a.full += b.full; - fill_rate.full = rfixed_div(wm0.sclk, a); + fill_rate.full = dfixed_div(wm0.sclk, a); if (wm0.consumption_rate.full > fill_rate.full) { b.full = wm0.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm0.active_time); - a.full = rfixed_const(16); - b.full = rfixed_div(b, a); - a.full = rfixed_mul(wm0.worst_case_latency, + b.full = dfixed_mul(b, wm0.active_time); + a.full = dfixed_const(16); + b.full = dfixed_div(b, a); + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); priority_mark02.full = a.full + b.full; } else { - a.full = rfixed_mul(wm0.worst_case_latency, + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); - b.full = rfixed_const(16 * 1000); - priority_mark02.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark02.full = dfixed_div(a, b); } if (wm1.consumption_rate.full > fill_rate.full) { b.full = wm1.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm1.active_time); - a.full = rfixed_const(16); - b.full = rfixed_div(b, a); - a.full = rfixed_mul(wm1.worst_case_latency, + b.full = dfixed_mul(b, wm1.active_time); + a.full = dfixed_const(16); + b.full = dfixed_div(b, a); + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); priority_mark12.full = a.full + b.full; } else { - a.full = rfixed_mul(wm1.worst_case_latency, + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); - b.full = rfixed_const(16 * 1000); - priority_mark12.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark12.full = dfixed_div(a, b); } if (wm0.priority_mark.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark.full; - if (rfixed_trunc(priority_mark02) < 0) + if (dfixed_trunc(priority_mark02) < 0) priority_mark02.full = 0; if (wm0.priority_mark_max.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark_max.full; if (wm1.priority_mark.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark.full; - if (rfixed_trunc(priority_mark12) < 0) + if (dfixed_trunc(priority_mark12) < 0) priority_mark12.full = 0; if (wm1.priority_mark_max.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark_max.full; - d1mode_priority_a_cnt = rfixed_trunc(priority_mark02); - d2mode_priority_a_cnt = rfixed_trunc(priority_mark12); + d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); + d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); if (rdev->disp_priority == 2) { d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; @@ -1006,32 +1006,32 @@ void rv515_bandwidth_avivo_update(struct radeon_device *rdev) WREG32(D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt); WREG32(D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt); } else if (mode0) { - if (rfixed_trunc(wm0.dbpp) > 64) - a.full = rfixed_div(wm0.dbpp, wm0.num_line_pair); + if (dfixed_trunc(wm0.dbpp) > 64) + a.full = dfixed_div(wm0.dbpp, wm0.num_line_pair); else a.full = wm0.num_line_pair.full; - fill_rate.full = rfixed_div(wm0.sclk, a); + fill_rate.full = dfixed_div(wm0.sclk, a); if (wm0.consumption_rate.full > fill_rate.full) { b.full = wm0.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm0.active_time); - a.full = rfixed_const(16); - b.full = rfixed_div(b, a); - a.full = rfixed_mul(wm0.worst_case_latency, + b.full = dfixed_mul(b, wm0.active_time); + a.full = dfixed_const(16); + b.full = dfixed_div(b, a); + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); priority_mark02.full = a.full + b.full; } else { - a.full = rfixed_mul(wm0.worst_case_latency, + a.full = dfixed_mul(wm0.worst_case_latency, wm0.consumption_rate); - b.full = rfixed_const(16); - priority_mark02.full = rfixed_div(a, b); + b.full = dfixed_const(16); + priority_mark02.full = dfixed_div(a, b); } if (wm0.priority_mark.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark.full; - if (rfixed_trunc(priority_mark02) < 0) + if (dfixed_trunc(priority_mark02) < 0) priority_mark02.full = 0; if (wm0.priority_mark_max.full > priority_mark02.full) priority_mark02.full = wm0.priority_mark_max.full; - d1mode_priority_a_cnt = rfixed_trunc(priority_mark02); + d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); if (rdev->disp_priority == 2) d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; WREG32(D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt); @@ -1039,32 +1039,32 @@ void rv515_bandwidth_avivo_update(struct radeon_device *rdev) WREG32(D2MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF); WREG32(D2MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF); } else { - if (rfixed_trunc(wm1.dbpp) > 64) - a.full = rfixed_div(wm1.dbpp, wm1.num_line_pair); + if (dfixed_trunc(wm1.dbpp) > 64) + a.full = dfixed_div(wm1.dbpp, wm1.num_line_pair); else a.full = wm1.num_line_pair.full; - fill_rate.full = rfixed_div(wm1.sclk, a); + fill_rate.full = dfixed_div(wm1.sclk, a); if (wm1.consumption_rate.full > fill_rate.full) { b.full = wm1.consumption_rate.full - fill_rate.full; - b.full = rfixed_mul(b, wm1.active_time); - a.full = rfixed_const(16); - b.full = rfixed_div(b, a); - a.full = rfixed_mul(wm1.worst_case_latency, + b.full = dfixed_mul(b, wm1.active_time); + a.full = dfixed_const(16); + b.full = dfixed_div(b, a); + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); priority_mark12.full = a.full + b.full; } else { - a.full = rfixed_mul(wm1.worst_case_latency, + a.full = dfixed_mul(wm1.worst_case_latency, wm1.consumption_rate); - b.full = rfixed_const(16 * 1000); - priority_mark12.full = rfixed_div(a, b); + b.full = dfixed_const(16 * 1000); + priority_mark12.full = dfixed_div(a, b); } if (wm1.priority_mark.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark.full; - if (rfixed_trunc(priority_mark12) < 0) + if (dfixed_trunc(priority_mark12) < 0) priority_mark12.full = 0; if (wm1.priority_mark_max.full > priority_mark12.full) priority_mark12.full = wm1.priority_mark_max.full; - d2mode_priority_a_cnt = rfixed_trunc(priority_mark12); + d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); if (rdev->disp_priority == 2) d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON; WREG32(D1MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF); diff --git a/include/drm/drm_fixed.h b/include/drm/drm_fixed.h new file mode 100644 index 000000000000..4a08a664ff1f --- /dev/null +++ b/include/drm/drm_fixed.h @@ -0,0 +1,67 @@ +/* + * Copyright 2009 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Dave Airlie + */ +#ifndef DRM_FIXED_H +#define DRM_FIXED_H + +typedef union dfixed { + u32 full; +} fixed20_12; + + +#define dfixed_const(A) (u32)(((A) << 12))/* + ((B + 0.000122)*4096)) */ +#define dfixed_const_half(A) (u32)(((A) << 12) + 2048) +#define dfixed_const_666(A) (u32)(((A) << 12) + 2731) +#define dfixed_const_8(A) (u32)(((A) << 12) + 3277) +#define dfixed_mul(A, B) ((u64)((u64)(A).full * (B).full + 2048) >> 12) +#define dfixed_init(A) { .full = dfixed_const((A)) } +#define dfixed_init_half(A) { .full = dfixed_const_half((A)) } +#define dfixed_trunc(A) ((A).full >> 12) + +static inline u32 dfixed_floor(fixed20_12 A) +{ + u32 non_frac = dfixed_trunc(A); + + return dfixed_const(non_frac); +} + +static inline u32 dfixed_ceil(fixed20_12 A) +{ + u32 non_frac = dfixed_trunc(A); + + if (A.full > dfixed_const(non_frac)) + return dfixed_const(non_frac + 1); + else + return dfixed_const(non_frac); +} + +static inline u32 dfixed_div(fixed20_12 A, fixed20_12 B) +{ + u64 tmp = ((u64)A.full << 13); + + do_div(tmp, B.full); + tmp += 1; + tmp /= 2; + return lower_32_bits(tmp); +} +#endif -- cgit v1.2.3-55-g7522