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drm/amd/display: fix dml prefetch validation

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[ Upstream commit 8ee0fea4ba ]

Incorrect variable used, missing initialization during validation.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dmytro Laktyushkin 2021-03-04 11:04:26 -05:00 • committed by Greg Kroah-Hartman
commit 298778681c
2 changed files with 2 additions and 0 deletions
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1
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
View file

@ -3437,6 +3437,7 @@ void dml20_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
mode_lib->vba.DCCEnabledInAnyPlane = true;
}
}
mode_lib->vba.UrgentLatency = mode_lib->vba.UrgentLatencyPixelDataOnly;
for (i = 0; i <= mode_lib->vba.soc.num_states; i++) {
locals->FabricAndDRAMBandwidthPerState[i] = dml_min(
mode_lib->vba.DRAMSpeedPerState[i] * mode_lib->vba.NumberOfChannels

1
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
View file

@ -3510,6 +3510,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
mode_lib->vba.DCCEnabledInAnyPlane = true;
}
}
mode_lib->vba.UrgentLatency = mode_lib->vba.UrgentLatencyPixelDataOnly;
for (i = 0; i <= mode_lib->vba.soc.num_states; i++) {
locals->FabricAndDRAMBandwidthPerState[i] = dml_min(
mode_lib->vba.DRAMSpeedPerState[i] * mode_lib->vba.NumberOfChannels