diff options
Diffstat (limited to 'kernel/main.c')
| -rw-r--r-- | kernel/main.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/main.c b/kernel/main.c index f662b94..258de41 100644 --- a/kernel/main.c +++ b/kernel/main.c @@ -174,6 +174,7 @@ static rm_vgpu_vfio_ops_t g_rm_vgpu_vfio_ops; static struct mdev_parent *g_mdev_parent = NULL; static bool gsp_phys_gpu_param; +static bool gsp_phys_gr_forward_param; /* VFIO ops implementation */ static NV_STATUS nv_vgpu_vfio_probe(struct pci_dev *pdev, NvU32 vgpu_type_id, NvU32 *vgpu_id); @@ -2596,6 +2597,23 @@ bool gsp_phys_gpu_enabled(void) } /* + * GR (compute) forwarding: when set, a guest GR channel's decoded inline-QMD + * launch is captured by the sema service and submitted as real work on the + * ladder's physical GR channel instead of (or before) the host CUDA bridge. + * Default off: every path is inert and the bridge/software emulation stays + * byte-identical. The backend additionally refuses until a real GR + * submission has proved out at boot (boot_stage.rmcall_gr_exec_ok), so the + * parameter alone can never make the module pretend GR works. + */ +module_param_named(gsp_phys_gr_forward, gsp_phys_gr_forward_param, bool, 0644); +MODULE_PARM_DESC(gsp_phys_gr_forward, "Forward guest GR (compute) launches to the physical GR engine on the debugfs ladder channel (default 0; requires gsp_phys_gpu + a proven GR ladder submission)"); + +bool gsp_phys_gr_forward_enabled(void) +{ + return gsp_phys_gr_forward_param; +} + +/* * GR ring discovery: pin the compute channels' rings/USERDs, which follow the * CE rings in the channel video-memory allocation. Default on; set 0 to leave * GR channels untranslated when debugging push-execution side effects. |