1 // SPDX-License-Identifier: GPL-2.0-only
17  * Returns the hart ID of the given device tree node, or -ENODEV if the node
18  * isn't an enabled and valid RISC-V hart node.
26 		return -ENODEV;  in riscv_of_processor_hartid()
32 		return -ENODEV;  in riscv_of_processor_hartid()
37 		return -ENODEV;  in riscv_of_processor_hartid()
42 		return -ENODEV;  in riscv_of_processor_hartid()
44 	if (isa[0] != 'r' || isa[1] != 'v') {  in riscv_of_processor_hartid()
46 		return -ENODEV;  in riscv_of_processor_hartid()
56  * RISC-V core (HART) node and extract the cpuid from it.
62 	for (; node; node = node->parent) {  in riscv_of_parent_hartid()
70 	return -1;  in riscv_of_parent_hartid()
87 	ci->mvendorid = sbi_spec_is_0_1() ? 0 : sbi_get_mvendorid();  in riscv_cpuinfo_starting()
88 	ci->marchid = sbi_spec_is_0_1() ? 0 : sbi_get_marchid();  in riscv_cpuinfo_starting()
89 	ci->mimpid = sbi_spec_is_0_1() ? 0 : sbi_get_mimpid();  in riscv_cpuinfo_starting()
91 	ci->mvendorid = csr_read(CSR_MVENDORID);  in riscv_cpuinfo_starting()
92 	ci->marchid = csr_read(CSR_MARCHID);  in riscv_cpuinfo_starting()
93 	ci->mimpid = csr_read(CSR_MIMPID);  in riscv_cpuinfo_starting()
95 	ci->mvendorid = 0;  in riscv_cpuinfo_starting()
96 	ci->marchid = 0;  in riscv_cpuinfo_starting()
97 	ci->mimpid = 0;  in riscv_cpuinfo_starting()
124  * Here are the ordering rules of extension naming defined by RISC-V
126  * 1. All extensions should be separated from other multi-letter extensions
132  * 3. Standard supervisor-level extensions (starts with 'S') should be
134  *    supervisor-level extensions are listed, they should be ordered
136  * 4. Non-standard extensions (starts with 'X') must be listed after all
137  *    standard extensions. They must be separated from other multi-letter
155 	arr_sz = ARRAY_SIZE(isa_ext_arr) - 1;  in print_isa_ext()
163 		if (!__riscv_isa_extension_available(NULL, edata->isa_ext_id))  in print_isa_ext()
165 		seq_printf(f, "_%s", edata->uprop);  in print_isa_ext()
185 		if (__riscv_isa_extension_available(NULL, base_riscv_exts[i] - 'a'))  in print_isa()
219 	*pos = cpumask_next(*pos - 1, cpu_online_mask);  in c_start()
225 static void *c_next(struct seq_file *m, void *v, loff_t *pos)  in c_next()  argument
231 static void c_stop(struct seq_file *m, void *v)  in c_stop()  argument
235 static int c_show(struct seq_file *m, void *v)  in c_show()  argument
237 	unsigned long cpu_id = (unsigned long)v - 1;  in c_show()
250 	seq_printf(m, "mvendorid\t: 0x%lx\n", ci->mvendorid);  in c_show()
251 	seq_printf(m, "marchid\t\t: 0x%lx\n", ci->marchid);  in c_show()
252 	seq_printf(m, "mimpid\t\t: 0x%lx\n", ci->mimpid);  in c_show()