diff options
Diffstat (limited to 'kernel/gsp_rm_emulation.h')
| -rw-r--r-- | kernel/gsp_rm_emulation.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/kernel/gsp_rm_emulation.h b/kernel/gsp_rm_emulation.h index 82ae493..17154b7 100644 --- a/kernel/gsp_rm_emulation.h +++ b/kernel/gsp_rm_emulation.h @@ -50,6 +50,35 @@ struct gsp_emu_context; #define GSPRM_RPC_FUNC_UPDATE_BAR_PDE 70 #define GSPRM_RPC_EVENT_POST_EVENT 0x1003 #define GSPRM_MAX_EVENTS 128 +/* + * CONT.438: bounded client memory-object table. GSP-client kernel channels + * pass a client-allocated USERD as hUserdMemory[subdev] (NV_CHANNEL_ALLOC_PARAMS + * @32), not as the userdMem memdesc (@168), so the channel alloc alone cannot + * name the USERD PA. Remember the memory-object ALLOCs by (hClient, hObject) + * and resolve the channel's handle later. Sized well above the handful of + * USERD objects live at once; retired slots are reused. + */ +#define GSPRM_MAX_MEM_OBJECTS 128 + +/* Address-space tag for a remembered memory object (NV_ADDR_* values). */ +enum gsp_rm_mem_as { + GSPRM_MEM_AS_UNKNOWN = 0, + GSPRM_MEM_AS_SYSMEM = 1, /* NV_ADDR_SYSMEM: base is a guest PA */ + GSPRM_MEM_AS_VIDMEM = 2, /* NV_ADDR_FBMEM: base is an FB offset */ + GSPRM_MEM_AS_VIRTUAL = 3, /* VA range only; never a physical base */ +}; + +struct gsp_rm_mem_object { + u32 h_object; + u32 h_client; + u32 h_parent; + u32 class_id; + u64 base; /* PA (sysmem), FB offset (vidmem), or VA */ + u64 size; + u8 address_space; /* enum gsp_rm_mem_as */ + bool valid; +}; + /* Max event records written between two replies (status-ring safety). */ #define GSPRM_EVENT_BURST_MAX 24 #define GSPRM_RPC_EVENT_GSP_INIT_DONE 0x1001 @@ -211,6 +240,18 @@ struct gsp_rm_emu { u64 events_dropped; u32 event_burst; /* event records written in the current window */ unsigned long event_burst_at; /* m171: burst window start (time-based reset) */ + + /* + * CONT.438: client memory objects observed through GSP_RM_ALLOC, + * keyed by (hClient, hObject), used to turn a channel's + * hUserdMemory[subdev] into a physical USERD base. All alloc/free + * handling is serialized on the emulation thread, so no lock. + */ + struct gsp_rm_mem_object mem_objects[GSPRM_MAX_MEM_OBJECTS]; + u32 mem_objects_n; + u32 mem_objects_next; /* eviction cursor when full */ + u32 mem_object_logs; /* bounded mem-object witness budget */ + u32 mem_object_evictions; /* bounded diagnostic counter */ }; /* |