From ec9aaaff66668217c0c5634d062b350429d8cfd2 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 10 Oct 2016 12:42:33 -0400 Subject: [PATCH] drm/radeon: clarify why we evict vram twice on suspend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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/radeon/radeon_device.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index eb92aef46e3c..79c9b6f3f013 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1651,7 +1651,10 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend, radeon_suspend(rdev); radeon_hpd_fini(rdev); - /* evict remaining vram memory */ + /* evict remaining vram memory + * This second call to evict vram is to evict the gart page table + * using the CPU. + */ radeon_bo_evict_vram(rdev); radeon_agp_suspend(rdev);