diff options
Diffstat (limited to 'kernel/gsp_rm_emulation.c')
| -rw-r--r-- | kernel/gsp_rm_emulation.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/gsp_rm_emulation.c b/kernel/gsp_rm_emulation.c index 37b2200..c14a767 100644 --- a/kernel/gsp_rm_emulation.c +++ b/kernel/gsp_rm_emulation.c @@ -639,6 +639,17 @@ static int gsp_rm_send_flags(struct gsp_emu_context *ctx, u32 function, if (w == wait_iters) break; mutex_unlock(&rm->stat_lock); + /* + * r1668: a full status ring means the guest's RM + * consumer is blocked, and the usual cause is the + * CeUtils scrub wait holding the RM lock the event + * callback needs. Authoring the scrubber's finish + * payload is the only way out, but the pump cannot + * reach its next pass while this post waits, so run + * the scrub step here (service thread only; no-op + * elsewhere). + */ + gsp_sema_service_scrub_pump(ctx->vgpu); msleep(1); mutex_lock(&rm->stat_lock); } |