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| author | Aleksa Paunovic <aleksa.paunovic@htecgroup.com> | 2025-07-24 17:23:28 +0200 |
|---|---|---|
| committer | Paul Walmsley <pjw@kernel.org> | 2025-09-19 10:33:56 -0600 |
| commit | bb4b0f8a1bcbf8f4e3a0841aaefb3fd580d12fc9 (patch) | |
| tree | 4b55f26830de517ed095b30a18cf4fff841f310d /arch/riscv/kernel/sys_hwprobe.c | |
| parent | riscv: Add xmipsexectl instructions (diff) | |
| download | linux-bb4b0f8a1bcbf8f4e3a0841aaefb3fd580d12fc9.tar.gz linux-bb4b0f8a1bcbf8f4e3a0841aaefb3fd580d12fc9.zip | |
riscv: hwprobe: Add MIPS vendor extension probing
Add a new hwprobe key "RISCV_HWPROBE_KEY_VENDOR_EXT_MIPS_0" which allows
userspace to probe for the new xmipsexectl vendor extension.
Signed-off-by: Aleksa Paunovic <aleksa.paunovic@htecgroup.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20250724-p8700-pause-v5-4-a6cbbe1c3412@htecgroup.com
[pjw@kernel.org: fixed some checkpatch issues]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Diffstat (limited to 'arch/riscv/kernel/sys_hwprobe.c')
| -rw-r--r-- | arch/riscv/kernel/sys_hwprobe.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwprobe.c index 3e9259790816..000f4451a9d8 100644 --- a/arch/riscv/kernel/sys_hwprobe.c +++ b/arch/riscv/kernel/sys_hwprobe.c @@ -15,6 +15,7 @@ #include <asm/uaccess.h> #include <asm/unistd.h> #include <asm/vector.h> +#include <asm/vendor_extensions/mips_hwprobe.h> #include <asm/vendor_extensions/sifive_hwprobe.h> #include <asm/vendor_extensions/thead_hwprobe.h> #include <vdso/vsyscall.h> @@ -307,6 +308,9 @@ static void hwprobe_one_pair(struct riscv_hwprobe *pair, case RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0: hwprobe_isa_vendor_ext_thead_0(pair, cpus); break; + case RISCV_HWPROBE_KEY_VENDOR_EXT_MIPS_0: + hwprobe_isa_vendor_ext_mips_0(pair, cpus); + break; /* * For forward compatibility, unknown keys don't fail the whole |