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drm: move radeon_fixed.h to shared drm_fixed.h header
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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>
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Ben Skeggs authored and Dave Airlie committed May 18, 2010
1 parent 15a7df8 commit 68adac5
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Showing 9 changed files with 400 additions and 400 deletions.
2 changes: 1 addition & 1 deletion drivers/gpu/drm/radeon/atombios_crtc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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"
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194 changes: 97 additions & 97 deletions drivers/gpu/drm/radeon/r100.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down Expand Up @@ -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);
Expand All @@ -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");
Expand Down Expand Up @@ -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);
Expand All @@ -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)) {
Expand Down Expand Up @@ -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;

Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -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);
Expand All @@ -3099,24 +3099,24 @@ 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;

read_return_rate.full = temp_ff.full;

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;
Expand Down
24 changes: 12 additions & 12 deletions drivers/gpu/drm/radeon/radeon_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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);
}
}

Expand Down
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