diff mbox series

[v2,12/15] RISC-V: Set minimum priv version for Zfh to 1.11

Message ID 20221223180016.2068508-13-christoph.muellner@vrull.eu
State New
Headers show
Series Add support for the T-Head vendor extensions | expand

Commit Message

Christoph Müllner Dec. 23, 2022, 6 p.m. UTC 
From: Christoph Müllner <christoph.muellner@vrull.eu>

There are no differences for floating point instructions in priv version 1.11
and 1.12. There is also no dependency for Zfh to priv version 1.12.
Therefore allow Zfh to be enabled for priv version 1.11.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
---
 target/riscv/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Alistair Francis Jan. 23, 2023, 11:39 p.m. UTC | #1 
On Sat, Dec 24, 2022 at 4:07 AM Christoph Muellner
<christoph.muellner@vrull.eu> wrote:
>
> From: Christoph Müllner <christoph.muellner@vrull.eu>
>
> There are no differences for floating point instructions in priv version 1.11
> and 1.12. There is also no dependency for Zfh to priv version 1.12.
> Therefore allow Zfh to be enabled for priv version 1.11.
>
> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Acked-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  target/riscv/cpu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index bb310755b1..a38127365e 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -76,7 +76,7 @@ static const struct isa_ext_data isa_edata_arr[] = {
>      ISA_EXT_DATA_ENTRY(zicsr, true, PRIV_VERSION_1_10_0, ext_icsr),
>      ISA_EXT_DATA_ENTRY(zifencei, true, PRIV_VERSION_1_10_0, ext_ifencei),
>      ISA_EXT_DATA_ENTRY(zihintpause, true, PRIV_VERSION_1_10_0, ext_zihintpause),
> -    ISA_EXT_DATA_ENTRY(zfh, true, PRIV_VERSION_1_12_0, ext_zfh),
> +    ISA_EXT_DATA_ENTRY(zfh, true, PRIV_VERSION_1_11_0, ext_zfh),
>      ISA_EXT_DATA_ENTRY(zfhmin, true, PRIV_VERSION_1_12_0, ext_zfhmin),
>      ISA_EXT_DATA_ENTRY(zfinx, true, PRIV_VERSION_1_12_0, ext_zfinx),
>      ISA_EXT_DATA_ENTRY(zdinx, true, PRIV_VERSION_1_12_0, ext_zdinx),
> --
> 2.38.1
>
>
diff mbox series

Patch

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index bb310755b1..a38127365e 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -76,7 +76,7 @@  static const struct isa_ext_data isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(zicsr, true, PRIV_VERSION_1_10_0, ext_icsr),
     ISA_EXT_DATA_ENTRY(zifencei, true, PRIV_VERSION_1_10_0, ext_ifencei),
     ISA_EXT_DATA_ENTRY(zihintpause, true, PRIV_VERSION_1_10_0, ext_zihintpause),
-    ISA_EXT_DATA_ENTRY(zfh, true, PRIV_VERSION_1_12_0, ext_zfh),
+    ISA_EXT_DATA_ENTRY(zfh, true, PRIV_VERSION_1_11_0, ext_zfh),
     ISA_EXT_DATA_ENTRY(zfhmin, true, PRIV_VERSION_1_12_0, ext_zfhmin),
     ISA_EXT_DATA_ENTRY(zfinx, true, PRIV_VERSION_1_12_0, ext_zfinx),
     ISA_EXT_DATA_ENTRY(zdinx, true, PRIV_VERSION_1_12_0, ext_zdinx),