[PATCH v2 1/2] target/riscv: Add Zaamo and Zalrsc extensions

[Rob Bradford <rbradford@rivosinc.com>]

These extensions represent the atomic operations from A (Zaamo) and the
Load-Reserved/Store-Conditional operations from A (Zalrsc)

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
---
 target/riscv/cpu.c     | 5 +++++
 target/riscv/cpu_cfg.h | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 8d3ec74a1c..604baf53c8 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -103,7 +103,9 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause),
     ISA_EXT_DATA_ENTRY(zihpm, PRIV_VERSION_1_12_0, ext_zihpm),
     ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul),
+    ISA_EXT_DATA_ENTRY(zaamo, PRIV_VERSION_1_12_0, ext_zaamo),
     ISA_EXT_DATA_ENTRY(zacas, PRIV_VERSION_1_12_0, ext_zacas),
+    ISA_EXT_DATA_ENTRY(zalrsc, PRIV_VERSION_1_12_0, ext_zalrsc),
     ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs),
     ISA_EXT_DATA_ENTRY(zfa, PRIV_VERSION_1_12_0, ext_zfa),
     ISA_EXT_DATA_ENTRY(zfbfmin, PRIV_VERSION_1_12_0, ext_zfbfmin),
@@ -1491,6 +1493,9 @@ const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[] = {
     MULTI_EXT_CFG_BOOL("x-smaia", ext_smaia, false),
     MULTI_EXT_CFG_BOOL("x-ssaia", ext_ssaia, false),
 
+    MULTI_EXT_CFG_BOOL("x-zaamo", ext_zaamo, false),
+    MULTI_EXT_CFG_BOOL("x-zalrsc", ext_zalrsc, false),
+
     MULTI_EXT_CFG_BOOL("x-zvfh", ext_zvfh, false),
     MULTI_EXT_CFG_BOOL("x-zvfhmin", ext_zvfhmin, false),
 
diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h
index fea14c275f..cc4c30244c 100644
--- a/target/riscv/cpu_cfg.h
+++ b/target/riscv/cpu_cfg.h
@@ -78,7 +78,9 @@ struct RISCVCPUConfig {
     bool ext_svnapot;
     bool ext_svpbmt;
     bool ext_zdinx;
+    bool ext_zaamo;
     bool ext_zacas;
+    bool ext_zalrsc;
     bool ext_zawrs;
     bool ext_zfa;
     bool ext_zfbfmin;
-- 
2.43.0