arch/riscv/kernel/vendor_extensions/sifive_hwprobe.c

Source file repositories/reference/linux-study-clean/arch/riscv/kernel/vendor_extensions/sifive_hwprobe.c

File Facts

System
Linux kernel
Corpus path
arch/riscv/kernel/vendor_extensions/sifive_hwprobe.c
Extension
.c
Size
642 bytes
Lines
23
Domain
Architecture Layer
Bucket
arch/riscv
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only

#include <asm/vendor_extensions/sifive.h>
#include <asm/vendor_extensions/sifive_hwprobe.h>
#include <asm/vendor_extensions/vendor_hwprobe.h>

#include <linux/cpumask.h>
#include <linux/types.h>

#include <uapi/asm/hwprobe.h>
#include <uapi/asm/vendor/sifive.h>

void hwprobe_isa_vendor_ext_sifive_0(struct riscv_hwprobe *pair, const struct cpumask *cpus)
{
	VENDOR_EXTENSION_SUPPORTED(pair, cpus,
				   riscv_isa_vendor_ext_list_sifive.per_hart_isa_bitmap, {
		VENDOR_EXT_KEY(XSFVQMACCDOD);
		VENDOR_EXT_KEY(XSFVQMACCQOQ);
		VENDOR_EXT_KEY(XSFVFNRCLIPXFQF);
		VENDOR_EXT_KEY(XSFVFWMACCQQQ);
	});
}

Annotation

Implementation Notes