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drm/amd/display: Initialize num_pkrs on VANGOGH.

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As far a I can tell uses a variant of DCN3xx which uses num_pkrs.

If we do not initialize the variable we will set the register field
to ilog2(0) = -1, though the mask will reduce that to 7. Pretty sure
7 is not the value we want here.

Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-and-Tested-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bas Nieuwenhuizen
2020-10-21 00:31:13 +02:00
committed by Alex Deucher
parent 1dc3c5a95b
commit 4a3a1dc02f
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -4036,7 +4036,8 @@ fill_plane_buffer_attributes(struct amdgpu_device *adev,
#ifdef CONFIG_DRM_AMD_DC_DCN3_0
if (adev->asic_type == CHIP_SIENNA_CICHLID ||
adev->asic_type == CHIP_NAVY_FLOUNDER ||
adev->asic_type == CHIP_DIMGREY_CAVEFISH)
adev->asic_type == CHIP_DIMGREY_CAVEFISH ||
adev->asic_type == CHIP_VANGOGH)
tiling_info->gfx9.num_pkrs = adev->gfx.config.gb_addr_config_fields.num_pkrs;
#endif
ret = fill_plane_dcc_attributes(adev, afb, format, rotation,