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| author | Chunming Zhou <David1.Zhou@amd.com> | 2017-05-15 11:48:27 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-05-25 01:11:52 +0300 |
| commit | f1892138abcb6d58359189f3b0a6c95f10613513 (patch) | |
| tree | 127e78746b85e17adb9793c4d38f5aadab8e9f92 /drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | |
| parent | 0c49e0b8a43c8addb0498cd32390f4ef08b5dd27 (diff) | |
| download | linux-f1892138abcb6d58359189f3b0a6c95f10613513.tar.xz | |
drm/amdgpu: return -ENODEV to user space when vram is lost v2
below ioctl will return -ENODEV:
amdgpu_cs_ioctl
amdgpu_cs_wait_ioctl
amdgpu_cs_wait_fences_ioctl
amdgpu_gem_va_ioctl
amdgpu_info_ioctl
v2: only for map and replace cases in amdgpu_gem_va_ioctl
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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: |