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

[Daniel Henrique Barboza]

On 1/15/24 13:25, Rob Bradford wrote:

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

Signed-off-by: Rob Bradford <rbradf...@rivosinc.com>
---

Reviewed-by: Daniel Henrique Barboza <dbarb...@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;