diff options
Diffstat (limited to 'kernel/gsp_phys_gpu.c')
| -rw-r--r-- | kernel/gsp_phys_gpu.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/gsp_phys_gpu.c b/kernel/gsp_phys_gpu.c index a350ed9..e92e5f1 100644 --- a/kernel/gsp_phys_gpu.c +++ b/kernel/gsp_phys_gpu.c @@ -1030,6 +1030,26 @@ int gsp_phys_rmcall_gr_mail_patch_value(void) EXPORT_SYMBOL_GPL(gsp_phys_rmcall_gr_mail_patch_value); /* + * m106: pre-install the fixed data PT pool (32 windows at + * GSP_PHYS_RMCALL_VA_GR_DATA_BASE) during stage 3, before the channel + * commit. Post-commit UPDATE_PDE_2 installs are accepted but ineffective + * (m101-m105); the ctx-window installs show the pre-commit path is the + * one the engine honours. Launch-time work is then only leaf PTE writes + * into these freshly installed PT pages. Default 0. + */ +static int gsp_phys_rmcall_gr_data_prewin_param; +module_param_named(gsp_phys_rmcall_gr_data_prewin, + gsp_phys_rmcall_gr_data_prewin_param, int, 0644); +MODULE_PARM_DESC(gsp_phys_rmcall_gr_data_prewin, + "Pre-install the data PT window pool in stage 3 (default 0)"); + +int gsp_phys_rmcall_gr_data_prewin_value(void) +{ + return gsp_phys_rmcall_gr_data_prewin_param; +} +EXPORT_SYMBOL_GPL(gsp_phys_rmcall_gr_data_prewin_value); + +/* * m95: program each GPC's MMU_CTRL from the hub's PFB MMU_CTRL (the real RM's * grInitGPCMmuPRIRegs matching-fields copy) before a forwarded launch. The * GPC-side walker refuses the SM I-fetch with MMU_NACK while hub-side reads |