Update includes to L4T r32.7.4 and drop nvgpu/gk20a.h dependency

Also add instructions for updating `include/`. These files are now
only needed to build on Linux 4.9-based Tegra platforms.

1 files changed, 19 insertions, 1 deletions

diff --git a/include/nvgpu/pmu.h b/include/nvgpu/pmu.h
index 2b745c7..fb1b016 100644
--- a/include/nvgpu/pmu.h
+++ b/include/nvgpu/pmu.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2022, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -94,6 +94,23 @@
 #define PMU_STATE_STARTED               7U /* Fully unitialized */
 #define PMU_STATE_EXIT                  8U /* Exit PMU state machine */
 
+/* state transition :
+ * OFF => [OFF_ON_PENDING optional] => ON_PENDING => ON => OFF
+ * ON => OFF is always synchronized
+ */
+/* elpg is off */
+#define PMU_ELPG_STAT_OFF               0U
+/* elpg is on */
+#define PMU_ELPG_STAT_ON                1U
+/* elpg is off, ALLOW cmd has been sent, wait for ack */
+#define PMU_ELPG_STAT_ON_PENDING        2U
+/* elpg is on, DISALLOW cmd has been sent, wait for ack */
+#define PMU_ELPG_STAT_OFF_PENDING       3U
+/* elpg is off, caller has requested on, but ALLOW
+ * cmd hasn't been sent due to ENABLE_ALLOW delay
+ */
+#define PMU_ELPG_STAT_OFF_ON_PENDING    4U
+
 #define GK20A_PMU_UCODE_NB_MAX_OVERLAY      32U
 #define GK20A_PMU_UCODE_NB_MAX_DATE_LENGTH  64U
 
@@ -351,6 +368,7 @@ struct nvgpu_pmu {
         u32 stat_dmem_offset[PMU_PG_ELPG_ENGINE_ID_INVALID_ENGINE];
 
         u32 elpg_stat;
+        u32 disallow_state;
 
         u32 mscg_stat;
         u32 mscg_transition_state;