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-rw-r--r--kernel/gsp_sema_service.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/kernel/gsp_sema_service.c b/kernel/gsp_sema_service.c
index 6f0103b..fb75f33 100644
--- a/kernel/gsp_sema_service.c
+++ b/kernel/gsp_sema_service.c
@@ -53,6 +53,7 @@
#include "bar_emulation.h"
#include "gsp_sema_service.h"
#include "gsp_rm_emulation.h"
+#include "gsp_display_engine.h"
#include "gsp_phys_booter.h"
#include "gsp_phys_gpu.h"
#include "gsp_cuda_bridge.h"
@@ -44686,6 +44687,16 @@ static int svc_thread(void *arg)
pumped = true;
/*
+ * r1621: display-engine progress. The guest's
+ * nvidia-modeset kicks its EVO channels through the
+ * BAR0 UDISP control windows; consume the push buffers,
+ * publish GET and complete each UPDATE's core notifier.
+ * The boot display-init and every Xorg mode set wait on
+ * that completion.
+ */
+ gsp_disp_engine_pump(vgpu);
+
+ /*
* Host CUDA bridge: marshal one queued launch into a
* daemon job and resolve completions. Inert until a
* launch is seen.
@@ -44876,8 +44887,11 @@ int gsp_sema_service_start(void)
* while gsp_phys_work_forward is enabled; the software path needs no
* workqueue at all.
*/
+ if (gsp_disp_engine_init())
+ pr_warn("sema-svc: display engine init failed\n");
svc.task = kthread_run(svc_thread, NULL, "gsp-sema-svc");
if (IS_ERR(svc.task)) {
+ gsp_disp_engine_fini();
int ret = PTR_ERR(svc.task);
svc.task = NULL;
@@ -44921,6 +44935,7 @@ void gsp_sema_service_stop(void)
svc_fwd_wq = NULL;
}
/* Thread is gone: release the bridge's pending jobs and debugfs files. */
+ gsp_disp_engine_fini();
gsp_cuda_bridge_fini();
svc_setup_demand_debugfs_fini();
/* A fresh session must not inherit shadowed bytes from the last one. */
@@ -44957,6 +44972,9 @@ void gsp_sema_service_vgpu_cleanup(struct nv_vgpu_device *vgpu)
if (!vgpu)
return;
+ /* r1621: drop the guest's display channels with the rest of its state. */
+ gsp_disp_engine_vgpu_cleanup(vgpu);
+
/*
* The forward work item runs on its own kthread and may be using the
* request's vgpu; quiesce waits for it (bounded by the submit's