From 4541bae601a330d2a22a21d9e24d0fe879ebf618 Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Wed, 7 Oct 2026 11:16:02 -0400 Subject: vgsp: m83 - host-readable sysmem error notifier for the RM's channel-error records NV_PGRAPH_EXCEPTION reads 0x01000000 (GPC) with EXCEPTION1 GPC1:0=0b11 at the QMD activation; the fault record the engine writes goes to the channel's error notifier, which is server FBMEM today and unreadable. gsp_phys_rmcall_gr_notifier_sys=1 registers a host sysmem chunk as the hObjectError memory object and carries it in the channel's errorNotifierMem with the SYS aperture, so the RM's asynchronous channel-error report is dumped in the launch post-mortem (the m35 lane still uses the captured substitute object shape). --- kernel/gsp_phys_gpu.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'kernel/gsp_phys_gpu.h') diff --git a/kernel/gsp_phys_gpu.h b/kernel/gsp_phys_gpu.h index 216c96e..9bd5624 100644 --- a/kernel/gsp_phys_gpu.h +++ b/kernel/gsp_phys_gpu.h @@ -362,6 +362,10 @@ int gsp_phys_rmcall_gr_lane_tail_value(void); * 4=#1063 device-sched); default 0 = send all. */ int gsp_phys_rmcall_gr_lane_skip_value(void); +/* m83: mode-35 error notifier as host sysmem so the RM's channel-error + * records are readable (default 0 = server FBMEM). */ +int gsp_phys_rmcall_gr_notifier_sys_value(void); + /* * Ladder VAS ownership selector (gsp_phys_rmcall_vas_shared; default 0). * 0 = FERMI_VASPACE_A is allocated IS_EXTERNALLY_OWNED (historical ladder -- cgit v1.2.3