Commit 6e227308 authored Oct 30, 2017 by Harry Wentland Committed by Alex Deucher Feb 19, 2018

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>

parent 2c9c178b

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -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);

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