Add basic PMP definitions.

1 files changed, 25 insertions, 0 deletions

diff --git a/model/riscv_pmp_regs.sail b/model/riscv_pmp_regs.sail
new file mode 100644
index 0000000..2326cc7
--- /dev/null
+++ b/model/riscv_pmp_regs.sail
@@ -0,0 +1,25 @@
+enum PmpAddrmatchType = {OFF, TOR, NA4, NAPOT}
+
+bitfield Pmpcfg_ent : bits(8) = {
+  L : 7,        /* locking */
+  A : 4 .. 3,   /* address matching */
+  // permissions:
+  X : 2,        /* execute */
+  W : 1,        /* write */
+  R : 0         /* read */
+}
+
+type Pmpcfg_reg = vector(xlen_bytes, dec, Pmpcfg_ent)
+
+register Pmpcfg0 : Pmpcfg_reg
+register Pmpcfg1 : Pmpcfg_reg
+register Pmpcfg2 : Pmpcfg_reg
+register Pmpcfg3 : Pmpcfg_reg
+
+bitfield Pmp_addr_64 : bits(64) = {
+  addr : 53 .. 0
+}
+
+bitfield Pmp_addr_32 : bits(64) = {
+  addr : 31 .. 0
+}