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Commit 4ef37e27 authored by Bing Guo's avatar Bing Guo Committed by Alex Deucher
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drm/amd/display: Fix dml20v2_ModeSupportAndSystemConfigurationFull() to check DesiredBPP. 

Why:
dml20v2_ModeSupportAndSystemConfigurationFull() didn't check against
DesiredBPP, so it doesn't work correctly when DesiredBPP can't be satisfied.

How:
Port the TruncToValidBPP() version from display_mode_vba_21.c to
display_mode_vba_20v2.c.
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarBing Guo <bing.guo@amd.com>
Reviewed-by: default avatarJun Lei <Jun.Lei@amd.com>
Acked-by: default avatarAnson Jacob <anson.jacob@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 64ff0882
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Inline Side-by-side
Showing with 79 additions and 38 deletions
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
View file @ 4ef37e27
......@@ -3263,6 +3263,7 @@ static void CalculateFlipSchedule(
static unsigned int TruncToValidBPP(
double DecimalBPP,
double DesiredBPP,
bool DSCEnabled,
enum output_encoder_class Output,
enum output_format_class Format,
......@@ -3270,31 +3271,31 @@ static unsigned int TruncToValidBPP(
{
if (Output == dm_hdmi) {
if (Format == dm_420) {
if (DecimalBPP >= 18)
if (DecimalBPP >= 18 && (DesiredBPP == 0 || DesiredBPP == 18))
return 18;
else if (DecimalBPP >= 15)
else if (DecimalBPP >= 15 && (DesiredBPP == 0 || DesiredBPP == 15))
return 15;
else if (DecimalBPP >= 12)
else if (DecimalBPP >= 12 && (DesiredBPP == 0 || DesiredBPP == 12))
return 12;
else
return BPP_INVALID;
} else if (Format == dm_444) {
if (DecimalBPP >= 36)
if (DecimalBPP >= 36 && (DesiredBPP == 0 || DesiredBPP == 36))
return 36;
else if (DecimalBPP >= 30)
else if (DecimalBPP >= 30 && (DesiredBPP == 0 || DesiredBPP == 30))
return 30;
else if (DecimalBPP >= 24)
else if (DecimalBPP >= 24 && (DesiredBPP == 0 || DesiredBPP == 24))
return 24;
else if (DecimalBPP >= 18)
else if (DecimalBPP >= 18 && (DesiredBPP == 0 || DesiredBPP == 18))
return 18;
else
return BPP_INVALID;
} else {
if (DecimalBPP / 1.5 >= 24)
if (DecimalBPP / 1.5 >= 24 && (DesiredBPP == 0 || DesiredBPP == 24))
return 24;
else if (DecimalBPP / 1.5 >= 20)
else if (DecimalBPP / 1.5 >= 20 && (DesiredBPP == 0 || DesiredBPP == 20))
return 20;
else if (DecimalBPP / 1.5 >= 16)
else if (DecimalBPP / 1.5 >= 16 && (DesiredBPP == 0 || DesiredBPP == 16))
return 16;
else
return BPP_INVALID;
......@@ -3302,53 +3303,86 @@ static unsigned int TruncToValidBPP(
} else {
if (DSCEnabled) {
if (Format == dm_420) {
if (DecimalBPP < 6)
return BPP_INVALID;
else if (DecimalBPP >= 1.5 * DSCInputBitPerComponent - 1 / 16)
return 1.5 * DSCInputBitPerComponent - 1 / 16;
else
return dml_floor(16 * DecimalBPP, 1) / 16;
if (DesiredBPP == 0) {
if (DecimalBPP < 6)
return BPP_INVALID;
else if (DecimalBPP >= 1.5 * DSCInputBitPerComponent - 1.0 / 16.0)
return 1.5 * DSCInputBitPerComponent - 1.0 / 16.0;
else
return dml_floor(16 * DecimalBPP, 1) / 16.0;
} else {
if (DecimalBPP < 6
|| DesiredBPP < 6
|| DesiredBPP > 1.5 * DSCInputBitPerComponent - 1.0 / 16.0
|| DecimalBPP < DesiredBPP) {
return BPP_INVALID;
} else {
return DesiredBPP;
}
}
} else if (Format == dm_n422) {
if (DecimalBPP < 7)
return BPP_INVALID;
else if (DecimalBPP >= 2 * DSCInputBitPerComponent - 1 / 16)
return 2 * DSCInputBitPerComponent - 1 / 16;
else
return dml_floor(16 * DecimalBPP, 1) / 16;
if (DesiredBPP == 0) {
if (DecimalBPP < 7)
return BPP_INVALID;
else if (DecimalBPP >= 2 * DSCInputBitPerComponent - 1.0 / 16.0)
return 2 * DSCInputBitPerComponent - 1.0 / 16.0;
else
return dml_floor(16 * DecimalBPP, 1) / 16.0;
} else {
if (DecimalBPP < 7
|| DesiredBPP < 7
|| DesiredBPP > 2 * DSCInputBitPerComponent - 1.0 / 16.0
|| DecimalBPP < DesiredBPP) {
return BPP_INVALID;
} else {
return DesiredBPP;
}
}
} else {
if (DecimalBPP < 8)
return BPP_INVALID;
else if (DecimalBPP >= 3 * DSCInputBitPerComponent - 1 / 16)
return 3 * DSCInputBitPerComponent - 1 / 16;
else
return dml_floor(16 * DecimalBPP, 1) / 16;
if (DesiredBPP == 0) {
if (DecimalBPP < 8)
return BPP_INVALID;
else if (DecimalBPP >= 3 * DSCInputBitPerComponent - 1.0 / 16.0)
return 3 * DSCInputBitPerComponent - 1.0 / 16.0;
else
return dml_floor(16 * DecimalBPP, 1) / 16.0;
} else {
if (DecimalBPP < 8
|| DesiredBPP < 8
|| DesiredBPP > 3 * DSCInputBitPerComponent - 1.0 / 16.0
|| DecimalBPP < DesiredBPP) {
return BPP_INVALID;
} else {
return DesiredBPP;
}
}
}
} else if (Format == dm_420) {
if (DecimalBPP >= 18)
if (DecimalBPP >= 18 && (DesiredBPP == 0 || DesiredBPP == 18))
return 18;
else if (DecimalBPP >= 15)
else if (DecimalBPP >= 15 && (DesiredBPP == 0 || DesiredBPP == 15))
return 15;
else if (DecimalBPP >= 12)
else if (DecimalBPP >= 12 && (DesiredBPP == 0 || DesiredBPP == 12))
return 12;
else
return BPP_INVALID;
} else if (Format == dm_s422 || Format == dm_n422) {
if (DecimalBPP >= 24)
if (DecimalBPP >= 24 && (DesiredBPP == 0 || DesiredBPP == 24))
return 24;
else if (DecimalBPP >= 20)
else if (DecimalBPP >= 20 && (DesiredBPP == 0 || DesiredBPP == 20))
return 20;
else if (DecimalBPP >= 16)
else if (DecimalBPP >= 16 && (DesiredBPP == 0 || DesiredBPP == 16))
return 16;
else
return BPP_INVALID;
} else {
if (DecimalBPP >= 36)
if (DecimalBPP >= 36 && (DesiredBPP == 0 || DesiredBPP == 36))
return 36;
else if (DecimalBPP >= 30)
else if (DecimalBPP >= 30 && (DesiredBPP == 0 || DesiredBPP == 30))
return 30;
else if (DecimalBPP >= 24)
else if (DecimalBPP >= 24 && (DesiredBPP == 0 || DesiredBPP == 24))
return 24;
else if (DecimalBPP >= 18)
else if (DecimalBPP >= 18 && (DesiredBPP == 0 || DesiredBPP == 18))
return 18;
else
return BPP_INVALID;
......@@ -4137,6 +4171,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
locals->RequiresFEC[i][k] = 0;
locals->OutputBppPerState[i][k] = TruncToValidBPP(
dml_min(600.0, mode_lib->vba.PHYCLKPerState[i]) / mode_lib->vba.PixelClockBackEnd[k] * 24,
mode_lib->vba.ForcedOutputLinkBPP[k],
false,
mode_lib->vba.Output[k],
mode_lib->vba.OutputFormat[k],
......@@ -4153,6 +4188,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
mode_lib->vba.Outbpp = TruncToValidBPP(
(1.0 - mode_lib->vba.Downspreading / 100.0) * 270.0
* mode_lib->vba.OutputLinkDPLanes[k] / mode_lib->vba.PixelClockBackEnd[k] * 8.0,
mode_lib->vba.ForcedOutputLinkBPP[k],
false,
mode_lib->vba.Output[k],
mode_lib->vba.OutputFormat[k],
......@@ -4160,6 +4196,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
mode_lib->vba.OutbppDSC = TruncToValidBPP(
(1.0 - mode_lib->vba.Downspreading / 100.0) * (1.0 - mode_lib->vba.EffectiveFECOverhead / 100.0) * 270.0
* mode_lib->vba.OutputLinkDPLanes[k] / mode_lib->vba.PixelClockBackEnd[k] * 8.0,
mode_lib->vba.ForcedOutputLinkBPP[k],
true,
mode_lib->vba.Output[k],
mode_lib->vba.OutputFormat[k],
......@@ -4182,6 +4219,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
mode_lib->vba.Outbpp = TruncToValidBPP(
(1.0 - mode_lib->vba.Downspreading / 100.0) * 540.0
* mode_lib->vba.OutputLinkDPLanes[k] / mode_lib->vba.PixelClockBackEnd[k] * 8.0,
mode_lib->vba.ForcedOutputLinkBPP[k],
false,
mode_lib->vba.Output[k],
mode_lib->vba.OutputFormat[k],
......@@ -4189,6 +4227,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
mode_lib->vba.OutbppDSC = TruncToValidBPP(
(1.0 - mode_lib->vba.Downspreading / 100.0) * (1.0 - mode_lib->vba.EffectiveFECOverhead / 100.0) * 540.0
* mode_lib->vba.OutputLinkDPLanes[k] / mode_lib->vba.PixelClockBackEnd[k] * 8.0,
mode_lib->vba.ForcedOutputLinkBPP[k],
true,
mode_lib->vba.Output[k],
mode_lib->vba.OutputFormat[k],
......@@ -4213,6 +4252,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
mode_lib->vba.Outbpp = TruncToValidBPP(
(1.0 - mode_lib->vba.Downspreading / 100.0) * 810.0
* mode_lib->vba.OutputLinkDPLanes[k] / mode_lib->vba.PixelClockBackEnd[k] * 8.0,
mode_lib->vba.ForcedOutputLinkBPP[k],
false,
mode_lib->vba.Output[k],
mode_lib->vba.OutputFormat[k],
......@@ -4220,6 +4260,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
mode_lib->vba.OutbppDSC = TruncToValidBPP(
(1.0 - mode_lib->vba.Downspreading / 100.0) * (1.0 - mode_lib->vba.EffectiveFECOverhead / 100.0) * 810.0
* mode_lib->vba.OutputLinkDPLanes[k] / mode_lib->vba.PixelClockBackEnd[k] * 8.0,
mode_lib->vba.ForcedOutputLinkBPP[k],
true,
mode_lib->vba.Output[k],
mode_lib->vba.OutputFormat[k],
......
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