diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 62f0a9591bb5..b324f07f137a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -235,6 +235,7 @@ static int amdgpu_firmware_info(struct drm_amdgpu_info_firmware *fw_info, static int amdgpu_info_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; struct drm_amdgpu_info *info = data; struct amdgpu_mode_info *minfo = &adev->mode_info; void __user *out = (void __user *)(uintptr_t)info->return_pointer; @@ -247,6 +248,8 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file if (!info->return_size || !info->return_pointer) return -EINVAL; + if (amdgpu_kms_vram_lost(adev, fpriv)) + return -ENODEV; switch (info->query) { case AMDGPU_INFO_ACCEL_WORKING: @@ -747,6 +750,12 @@ void amdgpu_driver_lastclose_kms(struct drm_device *dev) vga_switcheroo_process_delayed_switch(); } +bool amdgpu_kms_vram_lost(struct amdgpu_device *adev, + struct amdgpu_fpriv *fpriv) +{ + return fpriv->vram_lost_counter != atomic_read(&adev->vram_lost_counter); +} + /** * amdgpu_driver_open_kms - drm callback for open * @@ -799,6 +808,7 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) amdgpu_ctx_mgr_init(&fpriv->ctx_mgr); + fpriv->vram_lost_counter = atomic_read(&adev->vram_lost_counter); file_priv->driver_priv = fpriv; out_suspend: |