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-rw-r--r--sys/arch/arm64/arm64/cpu.c7
-rw-r--r--sys/arch/arm64/include/elf.h121
2 files changed, 127 insertions, 1 deletions
diff --git a/sys/arch/arm64/arm64/cpu.c b/sys/arch/arm64/arm64/cpu.c
index 47b2534a0bb..69898059074 100644
--- a/sys/arch/arm64/arm64/cpu.c
+++ b/sys/arch/arm64/arm64/cpu.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: cpu.c,v 1.125 2024/07/11 12:07:39 kettenis Exp $ */
+/* $OpenBSD: cpu.c,v 1.126 2024/07/14 09:48:48 jca Exp $ */
/*
* Copyright (c) 2016 Dale Rahn <drahn@dalerahn.com>
@@ -32,6 +32,7 @@
#include <uvm/uvm.h>
#include <machine/fdt.h>
+#include <machine/elf.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_clock.h>
@@ -741,6 +742,10 @@ cpu_identify(struct cpu_info *ci)
printf("%sAtomic", sep);
sep = ",";
arm64_has_lse = 1;
+ /*
+ * XXX should be populated and sanitized like cpu_sysctl() does
+ */
+ hwcap |= HWCAP_ATOMICS;
}
if (ID_AA64ISAR0_CRC32(id) >= ID_AA64ISAR0_CRC32_BASE) {
diff --git a/sys/arch/arm64/include/elf.h b/sys/arch/arm64/include/elf.h
new file mode 100644
index 00000000000..53be0b910c2
--- /dev/null
+++ b/sys/arch/arm64/include/elf.h
@@ -0,0 +1,121 @@
+/*-
+ * Copyright (c) 1996-1997 John D. Polstra.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _MACHINE_ELF_H_
+#define _MACHINE_ELF_H_
+
+/*
+ * ELF definitions for the AArch64 architecture.
+ */
+
+#ifdef _KERNEL
+# define __HAVE_CPU_HWCAP
+# define __HAVE_CPU_HWCAP2
+extern unsigned long hwcap, hwcap2;
+#endif /* _KERNEL */
+
+/* HWCAP */
+#define HWCAP_FP 0x00000001
+#define HWCAP_ASIMD 0x00000002
+#define HWCAP_EVTSTRM 0x00000004
+#define HWCAP_AES 0x00000008
+#define HWCAP_PMULL 0x00000010
+#define HWCAP_SHA1 0x00000020
+#define HWCAP_SHA2 0x00000040
+#define HWCAP_CRC32 0x00000080
+#define HWCAP_ATOMICS 0x00000100
+#define HWCAP_FPHP 0x00000200
+#define HWCAP_ASIMDHP 0x00000400
+#define HWCAP_CPUID 0x00000800
+#define HWCAP_ASIMDRDM 0x00001000
+#define HWCAP_JSCVT 0x00002000
+#define HWCAP_FCMA 0x00004000
+#define HWCAP_LRCPC 0x00008000
+#define HWCAP_DCPOP 0x00010000
+#define HWCAP_SHA3 0x00020000
+#define HWCAP_SM3 0x00040000
+#define HWCAP_SM4 0x00080000
+#define HWCAP_ASIMDDP 0x00100000
+#define HWCAP_SHA512 0x00200000
+#define HWCAP_SVE 0x00400000
+#define HWCAP_ASIMDFHM 0x00800000
+#define HWCAP_DIT 0x01000000
+#define HWCAP_USCAT 0x02000000
+#define HWCAP_ILRCPC 0x04000000
+#define HWCAP_FLAGM 0x08000000
+#define HWCAP_SSBS 0x10000000
+#define HWCAP_SB 0x20000000
+#define HWCAP_PACA 0x40000000
+#define HWCAP_PACG 0x80000000
+
+/* HWCAP2 */
+#define HWCAP2_DCPODP 0x0000000000000001ul
+#define HWCAP2_SVE2 0x0000000000000002ul
+#define HWCAP2_SVEAES 0x0000000000000004ul
+#define HWCAP2_SVEPMULL 0x0000000000000008ul
+#define HWCAP2_SVEBITPERM 0x0000000000000010ul
+#define HWCAP2_SVESHA3 0x0000000000000020ul
+#define HWCAP2_SVESM4 0x0000000000000040ul
+#define HWCAP2_FLAGM2 0x0000000000000080ul
+#define HWCAP2_FRINT 0x0000000000000100ul
+#define HWCAP2_SVEI8MM 0x0000000000000200ul
+#define HWCAP2_SVEF32MM 0x0000000000000400ul
+#define HWCAP2_SVEF64MM 0x0000000000000800ul
+#define HWCAP2_SVEBF16 0x0000000000001000ul
+#define HWCAP2_I8MM 0x0000000000002000ul
+#define HWCAP2_BF16 0x0000000000004000ul
+#define HWCAP2_DGH 0x0000000000008000ul
+#define HWCAP2_RNG 0x0000000000010000ul
+#define HWCAP2_BTI 0x0000000000020000ul
+#define HWCAP2_MTE 0x0000000000040000ul
+#define HWCAP2_ECV 0x0000000000080000ul
+#define HWCAP2_AFP 0x0000000000100000ul
+#define HWCAP2_RPRES 0x0000000000200000ul
+#define HWCAP2_MTE3 0x0000000000400000ul
+#define HWCAP2_SME 0x0000000000800000ul
+#define HWCAP2_SME_I16I64 0x0000000001000000ul
+#define HWCAP2_SME_F64F64 0x0000000002000000ul
+#define HWCAP2_SME_I8I32 0x0000000004000000ul
+#define HWCAP2_SME_F16F32 0x0000000008000000ul
+#define HWCAP2_SME_B16F32 0x0000000010000000ul
+#define HWCAP2_SME_F32F32 0x0000000020000000ul
+#define HWCAP2_SME_FA64 0x0000000040000000ul
+#define HWCAP2_WFXT 0x0000000080000000ul
+#define HWCAP2_EBF16 0x0000000100000000ul
+#define HWCAP2_SVE_EBF16 0x0000000200000000ul
+#define HWCAP2_CSSC 0x0000000400000000ul
+#define HWCAP2_RPRFM 0x0000000800000000ul
+#define HWCAP2_SVE2P1 0x0000001000000000ul
+#define HWCAP2_SME2 0x0000002000000000ul
+#define HWCAP2_SME2P1 0x0000004000000000ul
+#define HWCAP2_SME_I16I32 0x0000008000000000ul
+#define HWCAP2_SME_BI32I32 0x0000010000000000ul
+#define HWCAP2_SME_B16B16 0x0000020000000000ul
+#define HWCAP2_SME_F16F16 0x0000040000000000ul
+#define HWCAP2_MOPS 0x0000080000000000ul
+#define HWCAP2_HBC 0x0000100000000000ul
+
+#endif /* !_MACHINE_ELF_H_ */