NVIDIA/open-gpu-kernel-modules
1
0
Fork 0
mirror of https://github.com/NVIDIA/open-gpu-kernel-modules.git synced 2026-02-05 15:49:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

550.40.55

Browse Source
This commit is contained in:
russellcnv
2024-03-07 16:21:06 -08:00
parent 1daa1fc2e6
commit 66b6384d48
32 changed files with 282 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
kernel-open/nvidia-drm/nvidia-drm-drv.c
View File

@@ -1903,8 +1903,33 @@ void nv_drm_remove_devices(void)
*/
void nv_drm_suspend_resume(NvBool suspend)
{
static DEFINE_MUTEX(nv_drm_suspend_mutex);
static NvU32 nv_drm_suspend_count = 0;
struct nv_drm_device *nv_dev;
mutex_lock(&nv_drm_suspend_mutex);
/*
* Count the number of times the driver is asked to suspend. Suspend all DRM
* devices on the first suspend call and resume them on the last resume
* call. This is necessary because the kernel may call nvkms_suspend()
* simultaneously for each GPU, but NVKMS itself also suspends all GPUs on
* the first call.
*/
if (suspend) {
if (nv_drm_suspend_count++ > 0) {
goto done;
}
} else {
BUG_ON(nv_drm_suspend_count == 0);
if (--nv_drm_suspend_count > 0) {
goto done;
}
}
#if defined(NV_DRM_ATOMIC_MODESET_AVAILABLE)
struct nv_drm_device *nv_dev = dev_list;
nv_dev = dev_list;
/*
* NVKMS shuts down all heads on suspend. Update DRM state accordingly.
@@ -1930,6 +1955,9 @@ void nv_drm_suspend_resume(NvBool suspend)
}
}
#endif /* NV_DRM_ATOMIC_MODESET_AVAILABLE */
done:
mutex_unlock(&nv_drm_suspend_mutex);
}
#endif /* NV_DRM_AVAILABLE */