28 /* Host ISA bitmap */
37  * @isa_bitmap: ISA bitmap to use
40  * NOTE: If isa_bitmap is NULL then Host ISA bitmap will be used.
54  * @isa_bitmap: ISA bitmap to use
58  * NOTE: If isa_bitmap is NULL then Host ISA bitmap will be used.
74 	const char *isa;  in riscv_fill_hwcap()  local
100 		if (of_property_read_string(node, "riscv,isa", &isa)) {  in riscv_fill_hwcap()
101 			pr_warn("Unable to find \"riscv,isa\" devicetree entry\n");  in riscv_fill_hwcap()
105 		temp = isa;  in riscv_fill_hwcap()
107 		if (!strncmp(isa, "rv32", 4))  in riscv_fill_hwcap()
108 			isa += 4;  in riscv_fill_hwcap()
110 		if (!strncmp(isa, "rv64", 4))  in riscv_fill_hwcap()
111 			isa += 4;  in riscv_fill_hwcap()
113 		/* The riscv,isa DT property must start with rv64 or rv32 */  in riscv_fill_hwcap()
114 		if (temp == isa)  in riscv_fill_hwcap()
117 		for (; *isa; ++isa) {  in riscv_fill_hwcap()
118 			const char *ext = isa++;  in riscv_fill_hwcap()
119 			const char *ext_end = isa;  in riscv_fill_hwcap()
127 				 * not valid ISA extensions. It works until multi-letter  in riscv_fill_hwcap()
131 					++isa;  in riscv_fill_hwcap()
140 				for (; *isa && *isa != '_'; ++isa)  in riscv_fill_hwcap()
141 					if (unlikely(!islower(*isa)  in riscv_fill_hwcap()
142 						     && !isdigit(*isa)))  in riscv_fill_hwcap()
145 				ext_end = isa;  in riscv_fill_hwcap()
170 				if (!isdigit(*isa))  in riscv_fill_hwcap()
173 				while (isdigit(*++isa))  in riscv_fill_hwcap()
175 				if (*isa != 'p')  in riscv_fill_hwcap()
177 				if (!isdigit(*++isa)) {  in riscv_fill_hwcap()
178 					--isa;  in riscv_fill_hwcap()
182 				while (isdigit(*++isa))  in riscv_fill_hwcap()
186 			if (*isa != '_')  in riscv_fill_hwcap()
187 				--isa;  in riscv_fill_hwcap()
213 		 * All "okay" hart should have same isa. Set HWCAP based on  in riscv_fill_hwcap()
239 	pr_info("riscv: base ISA extensions %s\n", print_str);  in riscv_fill_hwcap()