On Fri, Apr 12, 2024 at 02:49:00PM +0800, Andy Chiu wrote:
Multiple Vector subextensions are added. Also, the patch takes care of the dependencies of Vector subextensions by macro expansions. So, if some "embedded" platform only reports "zve64f" on the ISA string, the parser is able to expand it to zve32x zve32f zve64x and zve64f.
Signed-off-by: Andy Chiu andy.chiu@sifive.com
Changelog v3:
- renumber RISCV_ISA_EXT_ZVE* to rebase on top of 6.9
- alphabetically sort added extensions (Clément)
Changelog v2:
- remove the extension itself from its isa_exts[] list (Clément)
- use riscv_zve64d_exts for v's extension list (Samuel)
arch/riscv/include/asm/hwcap.h | 5 +++++ arch/riscv/kernel/cpufeature.c | 36 +++++++++++++++++++++++++++++++++++- 2 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index e17d0078a651..f64d4e98e67c 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -81,6 +81,11 @@ #define RISCV_ISA_EXT_ZTSO 72 #define RISCV_ISA_EXT_ZACAS 73 #define RISCV_ISA_EXT_XANDESPMU 74 +#define RISCV_ISA_EXT_ZVE32X 75 +#define RISCV_ISA_EXT_ZVE32F 76 +#define RISCV_ISA_EXT_ZVE64X 77 +#define RISCV_ISA_EXT_ZVE64F 78 +#define RISCV_ISA_EXT_ZVE64D 79 #define RISCV_ISA_EXT_XLINUXENVCFG 127 diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index f6f3ece60d69..38d09de518b1 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -188,6 +188,35 @@ static const unsigned int riscv_zvbb_exts[] = { RISCV_ISA_EXT_ZVKB }; +#define RISCV_ISA_EXT_ZVE32F_IMPLY_LIST \
- RISCV_ISA_EXT_ZVE32X,
Not really a reason to have a list here, there's only one thing implied. Otherwise, Reviewed-by: Conor Dooley conor.dooley@microchip.com
Cheers, Conor.