We have two extension names for AIA ISA support: Smaia (M-mode AIA CSRs) and Ssaia (S-mode AIA CSRs). We extend the ISA string parsing to detect Smaia and Ssaia extensions. Signed-off-by: Anup Patel <apatel@xxxxxxxxxxxxxxxx> --- arch/riscv/include/asm/hwcap.h | 8 ++++++++ arch/riscv/kernel/cpu.c | 2 ++ arch/riscv/kernel/cpufeature.c | 2 ++ 3 files changed, 12 insertions(+) diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index 86328e3acb02..c649e85ed7bb 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -59,10 +59,18 @@ enum riscv_isa_ext_id { RISCV_ISA_EXT_ZIHINTPAUSE, RISCV_ISA_EXT_SSTC, RISCV_ISA_EXT_SVINVAL, + RISCV_ISA_EXT_SSAIA, + RISCV_ISA_EXT_SMAIA, RISCV_ISA_EXT_ID_MAX }; static_assert(RISCV_ISA_EXT_ID_MAX <= RISCV_ISA_EXT_MAX); +#ifdef CONFIG_RISCV_M_MODE +#define RISCV_ISA_EXT_SxAIA RISCV_ISA_EXT_SMAIA +#else +#define RISCV_ISA_EXT_SxAIA RISCV_ISA_EXT_SSAIA +#endif + /* * This enum represents the logical ID for each RISC-V ISA extension static * keys. We can use static key to optimize code path if some ISA extensions diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c index 1b9a5a66e55a..a215ec929160 100644 --- a/arch/riscv/kernel/cpu.c +++ b/arch/riscv/kernel/cpu.c @@ -162,6 +162,8 @@ arch_initcall(riscv_cpuinfo_init); * extensions by an underscore. */ static struct riscv_isa_ext_data isa_ext_arr[] = { + __RISCV_ISA_EXT_DATA(smaia, RISCV_ISA_EXT_SMAIA), + __RISCV_ISA_EXT_DATA(ssaia, RISCV_ISA_EXT_SSAIA), __RISCV_ISA_EXT_DATA(sscofpmf, RISCV_ISA_EXT_SSCOFPMF), __RISCV_ISA_EXT_DATA(sstc, RISCV_ISA_EXT_SSTC), __RISCV_ISA_EXT_DATA(svinval, RISCV_ISA_EXT_SVINVAL), diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 93e45560af30..3c5b51f519d5 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -228,6 +228,8 @@ void __init riscv_fill_hwcap(void) SET_ISA_EXT_MAP("zihintpause", RISCV_ISA_EXT_ZIHINTPAUSE); SET_ISA_EXT_MAP("sstc", RISCV_ISA_EXT_SSTC); SET_ISA_EXT_MAP("svinval", RISCV_ISA_EXT_SVINVAL); + SET_ISA_EXT_MAP("smaia", RISCV_ISA_EXT_SMAIA); + SET_ISA_EXT_MAP("ssaia", RISCV_ISA_EXT_SSAIA); } #undef SET_ISA_EXT_MAP } -- 2.34.1