vgsp: m26 GR launch discriminator - rebuilt window (prelude off), QMD-virt 0x29c, w63 sentinel

1 files changed, 36 insertions, 0 deletions

diff --git a/kernel/gsp_phys_gpu.c b/kernel/gsp_phys_gpu.c
index 2f441a0..ad2244e 100644
--- a/kernel/gsp_phys_gpu.c
+++ b/kernel/gsp_phys_gpu.c
@@ -580,6 +580,42 @@ int gsp_phys_rmcall_gr_promote_value(void)
 EXPORT_SYMBOL_GPL(gsp_phys_rmcall_gr_promote_value);
 
 /*
+ * GR launch verbatim-prelude gate (default 0). 0 = skip the captured
+ * 136-word verbatim guest prelude and emit the rebuilt inline-QMD window,
+ * i.e. the proven init(152)+window(67)+PCAS(4)+sem(8) shape; 1 = replay the
+ * verbatim prelude exactly as before. Read at each launch.
+ */
+static int gsp_phys_rmcall_gr_prelude_param;
+module_param_named(gsp_phys_rmcall_gr_prelude,
+		   gsp_phys_rmcall_gr_prelude_param, int, 0644);
+MODULE_PARM_DESC(gsp_phys_rmcall_gr_prelude,
+		 "GR launch verbatim-prelude gate (default 0: skip the captured guest prelude and emit the rebuilt inline-QMD window; 1: replay the verbatim prelude)");
+
+int gsp_phys_rmcall_gr_prelude_value(void)
+{
+	return gsp_phys_rmcall_gr_prelude_param;
+}
+EXPORT_SYMBOL_GPL(gsp_phys_rmcall_gr_prelude_value);
+
+/*
+ * QMD virtualization control gate (default 1). When set, the GR launch block
+ * emits NVC5C0_SET_QMD_VIRTUALIZATION_CONTROL (0x29c) = IQ2M_ADDR_ENABLE
+ * (bit 16) | SEND_PCAS_ENABLE (bit 24) after the compute init and before the
+ * inline-QMD window; 0 omits the method pair. Read at each launch.
+ */
+static int gsp_phys_rmcall_gr_qmdvirt_param = 1;
+module_param_named(gsp_phys_rmcall_gr_qmdvirt,
+		   gsp_phys_rmcall_gr_qmdvirt_param, int, 0644);
+MODULE_PARM_DESC(gsp_phys_rmcall_gr_qmdvirt,
+		 "Emit NVC5C0_SET_QMD_VIRTUALIZATION_CONTROL (0x29c = IQ2M_ADDR_ENABLE|SEND_PCAS_ENABLE) in the GR launch block (default 1; 0 omits the method pair)");
+
+int gsp_phys_rmcall_gr_qmdvirt_value(void)
+{
+	return gsp_phys_rmcall_gr_qmdvirt_param;
+}
+EXPORT_SYMBOL_GPL(gsp_phys_rmcall_gr_qmdvirt_value);
+
+/*
  * Ladder VAS ownership selector (gsp_phys_rmcall_vas_shared; default 0).
  * The H1 GR promote wall is a direct consequence of the ladder's
  * externally-owned FERMI_VASPACE_A: with IS_EXTERNALLY_OWNED the RM treats