From a0a71e49f533fe67c71abd5f3a0adf2fd10769f2 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 10 Oct 2016 12:41:36 -0400 Subject: [PATCH] drm/amdgpu: clarify why we evict vram twice on suspend MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Update the comment to explain why we do this. Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 9df66d1e843d..afeb7ab16d09 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1982,7 +1982,10 @@ int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon) r = amdgpu_suspend(adev); - /* evict remaining vram memory */ + /* evict remaining vram memory + * This second call to evict vram is to evict the gart page table + * using the CPU. + */ amdgpu_bo_evict_vram(adev); pci_save_state(dev->pdev); -- 2.20.1