/* * CPU-version specific code * * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2006-2009 PetaLogix * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #include <linux/init.h>#include <linux/string.h>#include <linux/seq_file.h>#include <linux/cpu.h>#include <linux/initrd.h> #include <linux/bug.h>#include <asm/cpuinfo.h>#include <linux/delay.h>#include <linux/io.h>#include <asm/page.h>#include <linux/param.h>#include <asm/pvr.h>#include <asm/sections.h>#include <asm/setup.h> static int show_cpuinfo(struct seq_file *m, void *v){	int count = 0;	char *fpga_family = "Unknown";	char *cpu_ver = "Unknown";	int i; 	/* Denormalised to get the fpga family string */	for (i = 0; family_string_lookup[i].s != NULL; i++) {		if (cpuinfo.fpga_family_code == family_string_lookup[i].k) {			fpga_family = (char *)family_string_lookup[i].s;			break;		}	} 	/* Denormalised to get the hw version string */	for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {		if (cpuinfo.ver_code == cpu_ver_lookup[i].k) {			cpu_ver = (char *)cpu_ver_lookup[i].s;			break;		}	} 	count = seq_printf(m,			"CPU-Family:	MicroBlaze\n"			"FPGA-Arch:	%s\n"			"CPU-Ver:	%s, %s endian\n"			"CPU-MHz:	%d.%02d\n"			"BogoMips:	%lu.%02lu\n",			fpga_family,			cpu_ver,			cpuinfo.endian ? "little" : "big",			cpuinfo.cpu_clock_freq /			1000000,			cpuinfo.cpu_clock_freq %			1000000,			loops_per_jiffy / (500000 / HZ),			(loops_per_jiffy / (5000 / HZ)) % 100); 	count += seq_printf(m,		"HW:\n Shift:\t\t%s\n"		" MSR:\t\t%s\n"		" PCMP:\t\t%s\n"		" DIV:\t\t%s\n",		(cpuinfo.use_instr & PVR0_USE_BARREL_MASK) ? "yes" : "no",		(cpuinfo.use_instr & PVR2_USE_MSR_INSTR) ? "yes" : "no",		(cpuinfo.use_instr & PVR2_USE_PCMP_INSTR) ? "yes" : "no",		(cpuinfo.use_instr & PVR0_USE_DIV_MASK) ? "yes" : "no"); 	count += seq_printf(m,			" MMU:\t\t%x\n",			cpuinfo.mmu); 	count += seq_printf(m,		" MUL:\t\t%s\n"		" FPU:\t\t%s\n",		(cpuinfo.use_mult & PVR2_USE_MUL64_MASK) ? "v2" :			(cpuinfo.use_mult & PVR0_USE_HW_MUL_MASK) ? "v1" : "no",		(cpuinfo.use_fpu & PVR2_USE_FPU2_MASK) ? "v2" :			(cpuinfo.use_fpu & PVR0_USE_FPU_MASK) ? "v1" : "no"); 	count += seq_printf(m,		" Exc:\t\t%s%s%s%s%s%s%s%s\n",		(cpuinfo.use_exc & PVR2_OPCODE_0x0_ILL_MASK) ? "op0x0 " : "",		(cpuinfo.use_exc & PVR2_UNALIGNED_EXC_MASK) ? "unal " : "",		(cpuinfo.use_exc & PVR2_ILL_OPCODE_EXC_MASK) ? "ill " : "",		(cpuinfo.use_exc & PVR2_IOPB_BUS_EXC_MASK) ? "iopb " : "",		(cpuinfo.use_exc & PVR2_DOPB_BUS_EXC_MASK) ? "dopb " : "",		(cpuinfo.use_exc & PVR2_DIV_ZERO_EXC_MASK) ? "zero " : "",		(cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "",		(cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : ""); 	count += seq_printf(m,			"Stream-insns:\t%sprivileged\n",			cpuinfo.mmu_privins ? "un" : ""); 	if (cpuinfo.use_icache)		count += seq_printf(m,				"Icache:\t\t%ukB\tline length:\t%dB\n",				cpuinfo.icache_size >> 10,				cpuinfo.icache_line_length);	else		count += seq_printf(m, "Icache:\t\tno\n"); 	if (cpuinfo.use_dcache) {		count += seq_printf(m,				"Dcache:\t\t%ukB\tline length:\t%dB\n",				cpuinfo.dcache_size >> 10,				cpuinfo.dcache_line_length);		seq_printf(m, "Dcache-Policy:\t");		if (cpuinfo.dcache_wb)			count += seq_printf(m, "write-back\n");		else			count += seq_printf(m, "write-through\n");	} else		count += seq_printf(m, "Dcache:\t\tno\n"); 	count += seq_printf(m,			"HW-Debug:\t%s\n",			cpuinfo.hw_debug ? "yes" : "no"); 	count += seq_printf(m,			"PVR-USR1:\t%02x\n"			"PVR-USR2:\t%08x\n",			cpuinfo.pvr_user1,			cpuinfo.pvr_user2); 	count += seq_printf(m, "Page size:\t%lu\n", PAGE_SIZE);	return 0;} static void *c_start(struct seq_file *m, loff_t *pos){	int i = *pos; 	return i < NR_CPUS ? (void *) (i + 1) : NULL;} static void *c_next(struct seq_file *m, void *v, loff_t *pos){	++*pos;	return c_start(m, pos);} static void c_stop(struct seq_file *m, void *v){} const struct seq_operations cpuinfo_op = {	.start = c_start,	.next = c_next,	.stop = c_stop,	.show = show_cpuinfo,};