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drm/amdgpu: create amdgpu_vkms (v4)

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Modify the VKMS driver into an api that dce_virtual can use to create
virtual displays that obey drm's atomic modesetting api.

v2: Made local functions static.

v3: Switched vkms_output kzalloc for kcalloc.
    Cleanup patches by moving display mode fixes to this patch.

v4: Update atomic_check and atomic_update to comply with new kms api.

Signed-off-by: Ryan Taylor <Ryan.Taylor@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ryan Taylor
2021-06-07 11:53:06 -07:00
committed by Alex Deucher
parent d7b5dae099
commit 84ec374bd5
7 changed files with 493 additions and 11 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
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@@ -344,7 +344,7 @@ int amdgpu_fbdev_init(struct amdgpu_device *adev)
}
/* disable all the possible outputs/crtcs before entering KMS mode */
if (!amdgpu_device_has_dc_support(adev))
if (!amdgpu_device_has_dc_support(adev) && !amdgpu_virtual_display)
drm_helper_disable_unused_functions(adev_to_drm(adev));
drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);