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 <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 files changed, 400 insertions, 400 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index b11aa37ed6d..4151ad8affe 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -26,7 +26,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/radeon_drm.h>
-#include "radeon_fixed.h"
+#include <drm/drm_fixed.h>
 #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 87c4ffaf545..a5f11c300f6 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 0372ec96020..e249da81dbf 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 bc9cc9211e6..10d70540fc5 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_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index f4f9cb297e3..7701d42c480 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -26,7 +26,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/radeon_drm.h>
-#include "radeon_fixed.h"
+#include <drm/drm_fixed.h>
 #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 061a2a6801c..38c0b63e9bb 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -34,10 +34,10 @@
 #include <drm_mode.h>
 #include <drm_edid.h>
 #include <drm_dp_helper.h>
+#include <drm_fixed.h>
 #include <linux/i2c.h>
 #include <linux/i2c-id.h>
 #include <linux/i2c-algo-bit.h>
-#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 56a0aec84af..e8edfe61728 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 c513473d72a..2009f4b20c2 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/drivers/gpu/drm/radeon/radeon_fixed.h b/include/drm/drm_fixed.h
index 3d4d84e078a..4a08a664ff1 100644
--- a/drivers/gpu/drm/radeon/radeon_fixed.h
+++ b/include/drm/drm_fixed.h
@@ -21,41 +21,41 @@
  *
  * Authors: Dave Airlie
  */
-#ifndef RADEON_FIXED_H
-#define RADEON_FIXED_H
+#ifndef DRM_FIXED_H
+#define DRM_FIXED_H
 
-typedef union rfixed {
+typedef union dfixed {
 	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)
+#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 rfixed_floor(fixed20_12 A)
+static inline u32 dfixed_floor(fixed20_12 A)
 {
-	u32 non_frac = rfixed_trunc(A);
+	u32 non_frac = dfixed_trunc(A);
 
-	return rfixed_const(non_frac);
+	return dfixed_const(non_frac);
 }
 
-static inline u32 rfixed_ceil(fixed20_12 A)
+static inline u32 dfixed_ceil(fixed20_12 A)
 {
-	u32 non_frac = rfixed_trunc(A);
+	u32 non_frac = dfixed_trunc(A);
 
-	if (A.full > rfixed_const(non_frac))
-		return rfixed_const(non_frac + 1);
+	if (A.full > dfixed_const(non_frac))
+		return dfixed_const(non_frac + 1);
 	else
-		return rfixed_const(non_frac);
+		return dfixed_const(non_frac);
 }
 
-static inline u32 rfixed_div(fixed20_12 A, fixed20_12 B)
+static inline u32 dfixed_div(fixed20_12 A, fixed20_12 B)
 {
 	u64 tmp = ((u64)A.full << 13);