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drm/amdgpu/virtual_dce: Virtual display doesn't support disable vblank immediately

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For virtual display, it uses software timer to emulate the vsync interrupt,
it doesn't have high precision, so doesn't support disable vblank immediately.

BUG: SWDEV-129274

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Emily Deng 2017-08-21 09:51:10 +08:00 committed by Alex Deucher
parent 38a8791aa7
commit ddbb531350
1 changed files with 3 additions and 2 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
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@ -221,6 +221,7 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
spin_lock_init(&adev->irq.lock);
if (!adev->enable_virtual_display)
/* Disable vblank irqs aggressively for power-saving */
adev->ddev->vblank_disable_immediate = true;