From 99d5c26cec50c6bd4ac6d409691e909ba37b20c4 Mon Sep 17 00:00:00 2001
From: Atul Khare <atulkhare@rivosinc.com>
Date: Fri, 7 Jul 2023 10:47:46 -0700
Subject: Add Smcdeleg CSR+constants

Adds CSR scountinhibit (0x120), MSTATEEN0.CD (bit 56), and siselect
range (0x40 - 0x5F).
---
 constants.py |  1 +
 encoding.h   | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/constants.py b/constants.py
index 98c4b7c..d345454 100644
--- a/constants.py
+++ b/constants.py
@@ -108,6 +108,7 @@ csrs = [
   (0x10D, 'sstateen1'), # Smstateen
   (0x10E, 'sstateen2'), # Smstateen
   (0x10F, 'sstateen3'), # Smstateen
+  (0x120, 'scountinhibit'), # Smcdeleg
   (0x140, 'sscratch'),
   (0x141, 'sepc'),
   (0x142, 'scause'),
diff --git a/encoding.h b/encoding.h
index d2dc4c2..40cf2f7 100644
--- a/encoding.h
+++ b/encoding.h
@@ -163,6 +163,7 @@
 #define MSTATEEN0_FCSR     0x00000002
 #define MSTATEEN0_JVT      0x00000004
 #define MSTATEEN0_HCONTEXT 0x0200000000000000
+#define MSTATEEN0_CD       0x0100000000000000
 #define MSTATEEN0_HENVCFG  0x4000000000000000
 #define MSTATEEN_HSTATEEN  0x8000000000000000
 
@@ -196,6 +197,18 @@
 #define HENVCFGH_PBMTE 0x40000000
 #define HENVCFGH_STCE  0x80000000
 
+#define SISELECT_SMCDELEG_START       0x40
+#define SISELECT_SMCDELEG_UNUSED      0x41
+#define SISELECT_SMCDELEG_INSTRET     0x42
+#define SISELECT_SMCDELEG_INSTRETCFG  0x42
+/*
+ * ?iselect values for hpmcounters4..31 and hpmevent4..31
+ * can easily computed, and were elided for brevity.
+ */
+#define SISELECT_SMCDELEG_HPMCOUNTER_3  0x43
+#define SISELECT_SMCDELEG_HPMEVENT_3    0x43
+#define SISELECT_SMCDELEG_END           0x5f
+
 #define HSTATEEN0_CS       0x00000001
 #define HSTATEEN0_FCSR     0x00000002
 #define HSTATEEN0_JVT      0x00000004
-- 
cgit v1.1