[v1] ARM AArch64 Support for BSD

[PATCH 16/23] Add function to retrieve additional ARM AArch64 hwcap

Posted by Ajeet Singh 5 months, 1 week ago

From: Warner Losh <imp@bsdimp.com>

Function to retrieve the extended hardware capability flags

Signed-off-by: Warner Losh <imp@bsdimp.com>
Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
---
 bsd-user/aarch64/target_arch_elf.h | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/bsd-user/aarch64/target_arch_elf.h b/bsd-user/aarch64/target_arch_elf.h
index ed2419408e..7202cd8334 100644
--- a/bsd-user/aarch64/target_arch_elf.h
+++ b/bsd-user/aarch64/target_arch_elf.h
@@ -133,4 +133,33 @@ static uint32_t get_elf_hwcap(void)
     return hwcaps;
 }
 
+static uint32_t get_elf_hwcap2(void)
+{
+    ARMCPU *cpu = ARM_CPU(thread_cpu);
+    uint32_t hwcaps = 0;
+
+    GET_FEATURE_ID(aa64_dcpodp, ARM_HWCAP2_A64_DCPODP);
+    GET_FEATURE_ID(aa64_sve2, ARM_HWCAP2_A64_SVE2);
+    GET_FEATURE_ID(aa64_sve2_aes, ARM_HWCAP2_A64_SVEAES);
+    GET_FEATURE_ID(aa64_sve2_pmull128, ARM_HWCAP2_A64_SVEPMULL);
+    GET_FEATURE_ID(aa64_sve2_bitperm, ARM_HWCAP2_A64_SVEBITPERM);
+    GET_FEATURE_ID(aa64_sve2_sha3, ARM_HWCAP2_A64_SVESHA3);
+    GET_FEATURE_ID(aa64_sve2_sm4, ARM_HWCAP2_A64_SVESM4);
+    GET_FEATURE_ID(aa64_condm_5, ARM_HWCAP2_A64_FLAGM2);
+    GET_FEATURE_ID(aa64_frint, ARM_HWCAP2_A64_FRINT);
+    GET_FEATURE_ID(aa64_sve_i8mm, ARM_HWCAP2_A64_SVEI8MM);
+    GET_FEATURE_ID(aa64_sve_f32mm, ARM_HWCAP2_A64_SVEF32MM);
+    GET_FEATURE_ID(aa64_sve_f64mm, ARM_HWCAP2_A64_SVEF64MM);
+    GET_FEATURE_ID(aa64_sve_bf16, ARM_HWCAP2_A64_SVEBF16);
+    GET_FEATURE_ID(aa64_i8mm, ARM_HWCAP2_A64_I8MM);
+    GET_FEATURE_ID(aa64_bf16, ARM_HWCAP2_A64_BF16);
+    GET_FEATURE_ID(aa64_rndr, ARM_HWCAP2_A64_RNG);
+    GET_FEATURE_ID(aa64_bti, ARM_HWCAP2_A64_BTI);
+    GET_FEATURE_ID(aa64_mte, ARM_HWCAP2_A64_MTE);
+
+    return hwcaps;
+}
+
+#undef GET_FEATURE_ID
+
 #endif /* TARGET_ARCH_ELF_H */
-- 
2.34.1

Re: [PATCH 16/23] Add function to retrieve additional ARM AArch64 hwcap

Posted by Richard Henderson 5 months, 1 week ago

On 6/17/24 11:57, Ajeet Singh wrote:
> From: Warner Losh<imp@bsdimp.com>
> 
> Function to retrieve the extended hardware capability flags
> 
> Signed-off-by: Warner Losh<imp@bsdimp.com>
> Signed-off-by: Ajeet Singh<itachis@FreeBSD.org>
> ---
>   bsd-user/aarch64/target_arch_elf.h | 29 +++++++++++++++++++++++++++++
>   1 file changed, 29 insertions(+)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~