Reviewed-by: Evan Quan <evan.quan@xxxxxxx>
> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Alex
> Deucher
> Sent: 2018年11月9日 5:38
> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>
> Subject: [PATCH] drm/amdgpu/gfx9: rework lbpw enable code
>
> To avoid changing the global lbpw module parameter directly.
>
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 29 ++++++++++++---------------
> --
> 1 file changed, 12 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 7abefb80f93d..138cc6c2caec 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -2499,26 +2499,21 @@ 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;
> }
>
> gfx_v9_0_rlc_start(adev);
> --
> 2.13.6
>
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