diff options
Diffstat (limited to 'kernel/gsp_rm_emulation.c')
| -rw-r--r-- | kernel/gsp_rm_emulation.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/gsp_rm_emulation.c b/kernel/gsp_rm_emulation.c index 2a957b3..7011f77 100644 --- a/kernel/gsp_rm_emulation.c +++ b/kernel/gsp_rm_emulation.c @@ -926,6 +926,48 @@ int gsp_rm_post_channel_event(struct nv_vgpu_device *vgpu, u32 h_src) } /* + * r623 experiment: deliver a synthetic OS_ERROR_LOG (0x1006) record to the + * guest's RM queue - the error report a real GSP sends into the client's + * message queue when an engine faults. r618's synth-fault writes the channel + * notifier and posts a generic event; after it, the NEXT client stuck + * pre-submission (r620 atomics; r616b saxpy/math). If the guest's fault + * handling marks the device recoverable only when the 0x1006 report arrives, + * this record is the missing half. Payload mirrors the GSP ABI decode in + * gsp_phys_booter.c (GSP_PHYS_OSERR_OFF_*): exceptType u32, runlistId u32, + * chid u32, errString[256], prevXid u32. Manual/debug only. + */ +int gsp_rm_send_os_error_log(struct nv_vgpu_device *vgpu, u32 except_type, + u32 runlist_id, u32 chid, const char *engine) +{ + struct gsp_emu_context *ctx = vgpu ? vgpu->gsp_comm_ctx : NULL; + struct gsp_rm_emu *rm; + u8 payload[272] = {0}; + int rc; + + if (!ctx) + return -ENODEV; + rm = ctx->rm_emu; + if (!rm || !rm->parsed) + return -EAGAIN; + + memcpy(payload + 0, &except_type, 4); + memcpy(payload + 4, &runlist_id, 4); + memcpy(payload + 8, &chid, 4); + snprintf((char *)payload + 12, 255, "ENGINE %s", + engine && *engine ? engine : "GR"); + /* prevXid stays 0 */ + + rc = gsp_rm_send(ctx, 0x1006, (u32)rm->stat_seq + 1, 0, payload, + sizeof(payload)); + if (!rc) + nv_vgpu_info(vgpu, + "vgsp-rm: OS_ERROR_LOG sent (synthetic) except=0x%x rl=%u chid=%u engine=%s\n", + except_type, runlist_id, chid, + engine && *engine ? engine : "GR"); + return rc; +} + +/* * Debug: post the event record for one registered event (or all of them with * idx 0xffffffff). Used to test the guest's event path on demand without * waiting for a channel submission. |