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drm/amdgpu/gfx9: rework lbpw enable code 

To avoid changing the global lbpw module parameter directly.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2018-11-08 16:34:48 -05:00
parent c10caceddc
commit 688be01a0a
1 changed files with 12 additions and 17 deletions
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29
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
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@ -2400,26 +2400,21 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
return r;
}
if (amdgpu_lbpw == -1) {
switch (adev->asic_type) {
case CHIP_RAVEN:
amdgpu_lbpw = 1;
break;
case CHIP_VEGA20:
amdgpu_lbpw = 0;
break;
default:
amdgpu_lbpw = 0;
break;
}
}
if (adev->asic_type == CHIP_RAVEN ||
adev->asic_type == CHIP_VEGA20) {
if (amdgpu_lbpw != 0)
switch (adev->asic_type) {
case CHIP_RAVEN:
if (amdgpu_lbpw == 0)
gfx_v9_0_enable_lbpw(adev, false);
else
gfx_v9_0_enable_lbpw(adev, true);
break;
case CHIP_VEGA20:
if (amdgpu_lbpw > 0)
gfx_v9_0_enable_lbpw(adev, true);
else
gfx_v9_0_enable_lbpw(adev, false);
break;
default:
break;
}
adev->gfx.rlc.funcs->start(adev);