drm/amdgpu: partial revert VRAM lost handling v2

Keep blocking the CS, but revert everything else. Mapping BOs and info IOCTL
are harmless and can still happen even when VRAM content ist lost.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 0 insertions, 11 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 5de092eab0fa..0c07df72743c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1272,16 +1272,12 @@ int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data,
 {
         union drm_amdgpu_wait_cs *wait = data;
         struct amdgpu_device *adev = dev->dev_private;
-        struct amdgpu_fpriv *fpriv = filp->driver_priv;
         unsigned long timeout = amdgpu_gem_timeout(wait->in.timeout);
         struct amdgpu_ring *ring = NULL;
         struct amdgpu_ctx *ctx;
         struct dma_fence *fence;
         long r;
 
-        if (amdgpu_kms_vram_lost(adev, fpriv))
-                return -ENODEV;
-
         ctx = amdgpu_ctx_get(filp->driver_priv, wait->in.ctx_id);
         if (ctx == NULL)
                 return -EINVAL;
@@ -1350,16 +1346,12 @@ int amdgpu_cs_fence_to_handle_ioctl(struct drm_device *dev, void *data,
                                     struct drm_file *filp)
 {
         struct amdgpu_device *adev = dev->dev_private;
-        struct amdgpu_fpriv *fpriv = filp->driver_priv;
         union drm_amdgpu_fence_to_handle *info = data;
         struct dma_fence *fence;
         struct drm_syncobj *syncobj;
         struct sync_file *sync_file;
         int fd, r;
 
-        if (amdgpu_kms_vram_lost(adev, fpriv))
-                return -ENODEV;
-
         fence = amdgpu_cs_get_fence(adev, filp, &info->in.fence);
         if (IS_ERR(fence))
                 return PTR_ERR(fence);
@@ -1521,15 +1513,12 @@ int amdgpu_cs_wait_fences_ioctl(struct drm_device *dev, void *data,
                                 struct drm_file *filp)
 {
         struct amdgpu_device *adev = dev->dev_private;
-        struct amdgpu_fpriv *fpriv = filp->driver_priv;
         union drm_amdgpu_wait_fences *wait = data;
         uint32_t fence_count = wait->in.fence_count;
         struct drm_amdgpu_fence *fences_user;
         struct drm_amdgpu_fence *fences;
         int r;
 
-        if (amdgpu_kms_vram_lost(adev, fpriv))
-                return -ENODEV;
         /* Get the fences from userspace */
         fences = kmalloc_array(fence_count, sizeof(struct drm_amdgpu_fence),
                         GFP_KERNEL);