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drm/amd/display: Enable VM support only on APUs newer than CZ 

VM support is only available for CZ and newer APUs. Trying to
enable it for dGPU will blow up in DC.

v2: Don't enable gpu_vm_support for Raven yet since it leads to
    a black screen. Need to debug this further before enabling.

Change-Id: Ibe467c36affe2e7a7ee740c8d4f73027ca807178
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
CC: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harry Wentland 2017-10-30 13:41:51 -04:00 committed by Alex Deucher
parent 2c9c178b7d
commit 6e227308a9
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -451,6 +451,14 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
else
init_data.log_mask = DC_MIN_LOG_MASK;
/*
* TODO debug why this doesn't work on Raven
*/
if (adev->flags & AMD_IS_APU &&
adev->asic_type >= CHIP_CARRIZO &&
adev->asic_type < CHIP_RAVEN)
init_data.flags.gpu_vm_support = true;
/* Display Core create. */
adev->dm.dc = dc_create(&init_data);