Blackfin arch: unify cplbinfo files
Merge MPU and noMPU version of CPLB info code to one common version. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger
Bryan Wu
parent
4db557d4ae
commit
ff4c02e4be
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@ -16,6 +16,7 @@ else
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endif
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obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o
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obj-$(CONFIG_CPLB_INFO) += cplbinfo.o
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obj-$(CONFIG_MODULES) += module.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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@ -3,6 +3,3 @@
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#
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obj-y := cplbinit.o cacheinit.o cplbmgr.o
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obj-$(CONFIG_CPLB_INFO) += cplbinfo.o
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@ -1,149 +0,0 @@
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/*
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* File: arch/blackfin/mach-common/cplbinfo.c
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* Based on:
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* Author: Sonic Zhang <sonic.zhang@analog.com>
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*
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* Created: Jan. 2005
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* Description: Display CPLB status
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*
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* Modified:
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* Copyright 2004-2006 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/uaccess.h>
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#include <asm/current.h>
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#include <asm/system.h>
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#include <asm/cplb.h>
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#include <asm/cplbinit.h>
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#include <asm/blackfin.h>
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static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
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static char *cplb_print_entry(char *buf, struct cplb_entry *tbl, int switched)
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{
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int i;
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buf += sprintf(buf, "Index\tAddress\t\tData\tSize\tU/RD\tU/WR\tS/WR\tSwitch\n");
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for (i = 0; i < MAX_CPLBS; i++) {
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unsigned long data = tbl[i].data;
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unsigned long addr = tbl[i].addr;
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if (!(data & CPLB_VALID))
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continue;
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buf +=
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sprintf(buf,
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"%d\t0x%08lx\t%06lx\t%s\t%c\t%c\t%c\t%c\n",
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i, addr, data,
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page_size_string_table[(data & 0x30000) >> 16],
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(data & CPLB_USER_RD) ? 'Y' : 'N',
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(data & CPLB_USER_WR) ? 'Y' : 'N',
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(data & CPLB_SUPV_WR) ? 'Y' : 'N',
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i < switched ? 'N' : 'Y');
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}
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buf += sprintf(buf, "\n");
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return buf;
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}
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int cplbinfo_proc_output(char *buf, void *data)
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{
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char *p;
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unsigned int cpu = (unsigned int)data;;
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p = buf;
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p += sprintf(p, "------------- CPLB Information on CPU%u --------------\n\n", cpu);
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if (bfin_read_IMEM_CONTROL() & ENICPLB) {
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p += sprintf(p, "Instruction CPLB entry:\n");
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p = cplb_print_entry(p, icplb_tbl[cpu], first_switched_icplb);
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} else
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p += sprintf(p, "Instruction CPLB is disabled.\n\n");
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if (1 || bfin_read_DMEM_CONTROL() & ENDCPLB) {
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p += sprintf(p, "Data CPLB entry:\n");
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p = cplb_print_entry(p, dcplb_tbl[cpu], first_switched_dcplb);
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} else
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p += sprintf(p, "Data CPLB is disabled.\n");
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p += sprintf(p, "ICPLB miss: %d\nICPLB supervisor miss: %d\n",
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nr_icplb_miss[cpu], nr_icplb_supv_miss[cpu]);
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p += sprintf(p, "DCPLB miss: %d\nDCPLB protection fault:%d\n",
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nr_dcplb_miss[cpu], nr_dcplb_prot[cpu]);
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p += sprintf(p, "CPLB flushes: %d\n",
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nr_cplb_flush[cpu]);
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return p - buf;
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}
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static int cplbinfo_read_proc(char *page, char **start, off_t off,
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int count, int *eof, void *data)
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{
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int len;
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len = cplbinfo_proc_output(page, data);
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if (len <= off + count)
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*eof = 1;
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*start = page + off;
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len -= off;
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if (len > count)
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len = count;
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if (len < 0)
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len = 0;
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return len;
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}
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static int __init cplbinfo_init(void)
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{
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struct proc_dir_entry *parent, *entry;
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unsigned int cpu;
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unsigned char str[10];
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parent = proc_mkdir("cplbinfo", NULL);
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for_each_online_cpu(cpu) {
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sprintf(str, "cpu%u", cpu);
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entry = create_proc_entry(str, 0, parent);
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if (!entry)
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return -ENOMEM;
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entry->read_proc = cplbinfo_read_proc;
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entry->data = (void *)cpu;
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}
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return 0;
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}
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static void __exit cplbinfo_exit(void)
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{
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unsigned int cpu;
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unsigned char str[20];
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for_each_online_cpu(cpu) {
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sprintf(str, "cplbinfo/cpu%u", cpu);
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remove_proc_entry(str, NULL);
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}
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remove_proc_entry("cplbinfo", NULL);
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}
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module_init(cplbinfo_init);
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module_exit(cplbinfo_exit);
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@ -3,6 +3,3 @@
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#
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obj-y := cplbinit.o cacheinit.o cplbhdlr.o cplbmgr.o
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obj-$(CONFIG_CPLB_INFO) += cplbinfo.o
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@ -1,208 +0,0 @@
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/*
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* File: arch/blackfin/mach-common/cplbinfo.c
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* Based on:
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* Author: Sonic Zhang <sonic.zhang@analog.com>
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*
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* Created: Jan. 2005
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* Description: Display CPLB status
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*
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* Modified:
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* Copyright 2004-2006 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/uaccess.h>
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#include <asm/cplbinit.h>
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#include <asm/blackfin.h>
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#define CPLB_I 1
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#define CPLB_D 2
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#define SYNC_SYS SSYNC()
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#define SYNC_CORE CSYNC()
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#define CPLB_BIT_PAGESIZE 0x30000
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static int page_size_table[4] = {
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0x00000400, /* 1K */
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0x00001000, /* 4K */
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0x00100000, /* 1M */
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0x00400000 /* 4M */
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};
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static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
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static int cplb_find_entry(unsigned long *cplb_addr,
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unsigned long *cplb_data, unsigned long addr,
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unsigned long data)
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{
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int ii;
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for (ii = 0; ii < 16; ii++)
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if (addr >= cplb_addr[ii] && addr < cplb_addr[ii] +
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page_size_table[(cplb_data[ii] & CPLB_BIT_PAGESIZE) >> 16]
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&& (cplb_data[ii] == data))
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return ii;
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return -1;
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}
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static char *cplb_print_entry(char *buf, int type, unsigned int cpu)
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{
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unsigned long *p_addr = dpdt_tables[cpu];
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unsigned long *p_data = dpdt_tables[cpu] + 1;
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unsigned long *p_icount = dpdt_swapcount_tables[cpu];
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unsigned long *p_ocount = dpdt_swapcount_tables[cpu] + 1;
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unsigned long *cplb_addr = (unsigned long *)DCPLB_ADDR0;
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unsigned long *cplb_data = (unsigned long *)DCPLB_DATA0;
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int entry = 0, used_cplb = 0;
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if (type == CPLB_I) {
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buf += sprintf(buf, "Instruction CPLB entry:\n");
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p_addr = ipdt_tables[cpu];
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p_data = ipdt_tables[cpu] + 1;
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p_icount = ipdt_swapcount_tables[cpu];
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p_ocount = ipdt_swapcount_tables[cpu] + 1;
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cplb_addr = (unsigned long *)ICPLB_ADDR0;
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cplb_data = (unsigned long *)ICPLB_DATA0;
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} else
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buf += sprintf(buf, "Data CPLB entry:\n");
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buf += sprintf(buf, "Address\t\tData\tSize\tValid\tLocked\tSwapin\tiCount\toCount\n");
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while (*p_addr != 0xffffffff) {
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entry = cplb_find_entry(cplb_addr, cplb_data, *p_addr, *p_data);
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if (entry >= 0)
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used_cplb |= 1 << entry;
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buf +=
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sprintf(buf,
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"0x%08lx\t0x%05lx\t%s\t%c\t%c\t%2d\t%ld\t%ld\n",
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*p_addr, *p_data,
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page_size_string_table[(*p_data & 0x30000) >> 16],
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(*p_data & CPLB_VALID) ? 'Y' : 'N',
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(*p_data & CPLB_LOCK) ? 'Y' : 'N', entry, *p_icount,
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*p_ocount);
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p_addr += 2;
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p_data += 2;
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p_icount += 2;
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p_ocount += 2;
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}
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if (used_cplb != 0xffff) {
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buf += sprintf(buf, "Unused/mismatched CPLBs:\n");
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for (entry = 0; entry < 16; entry++)
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if (0 == ((1 << entry) & used_cplb)) {
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int flags = cplb_data[entry];
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buf +=
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sprintf(buf,
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"%2d: 0x%08lx\t0x%05x\t%s\t%c\t%c\n",
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entry, cplb_addr[entry], flags,
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page_size_string_table[(flags &
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0x30000) >>
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16],
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(flags & CPLB_VALID) ? 'Y' : 'N',
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(flags & CPLB_LOCK) ? 'Y' : 'N');
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}
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}
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buf += sprintf(buf, "\n");
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return buf;
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}
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static int cplbinfo_proc_output(char *buf, void *data)
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{
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unsigned int cpu = (unsigned int)data;
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char *p;
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p = buf;
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p += sprintf(p, "------------- CPLB Information on CPU%u--------------\n\n", cpu);
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if (bfin_read_IMEM_CONTROL() & ENICPLB)
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p = cplb_print_entry(p, CPLB_I, cpu);
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else
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p += sprintf(p, "Instruction CPLB is disabled.\n\n");
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if (bfin_read_DMEM_CONTROL() & ENDCPLB)
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p = cplb_print_entry(p, CPLB_D, cpu);
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else
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p += sprintf(p, "Data CPLB is disabled.\n");
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return p - buf;
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}
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static int cplbinfo_read_proc(char *page, char **start, off_t off,
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int count, int *eof, void *data)
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{
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int len;
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len = cplbinfo_proc_output(page, data);
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if (len <= off + count)
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*eof = 1;
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*start = page + off;
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len -= off;
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if (len > count)
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len = count;
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if (len < 0)
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len = 0;
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return len;
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}
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static int __init cplbinfo_init(void)
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{
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struct proc_dir_entry *parent, *entry;
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unsigned int cpu;
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unsigned char str[10];
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parent = proc_mkdir("cplbinfo", NULL);
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for_each_online_cpu(cpu) {
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sprintf(str, "cpu%u", cpu);
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entry = create_proc_entry(str, 0, parent);
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if (!entry)
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return -ENOMEM;
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entry->read_proc = cplbinfo_read_proc;
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entry->data = (void *)cpu;
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}
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return 0;
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}
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static void __exit cplbinfo_exit(void)
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{
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unsigned int cpu;
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unsigned char str[20];
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for_each_online_cpu(cpu) {
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sprintf(str, "cplbinfo/cpu%u", cpu);
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remove_proc_entry(str, NULL);
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}
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remove_proc_entry("cplbinfo", NULL);
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}
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module_init(cplbinfo_init);
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module_exit(cplbinfo_exit);
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@ -0,0 +1,200 @@
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/*
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* arch/blackfin/kernel/cplbinfo.c - display CPLB status
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*
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* Copyright 2004-2008 Analog Devices Inc.
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* Licensed under the GPL-2 or later.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/uaccess.h>
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#include <asm/cplbinit.h>
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#include <asm/blackfin.h>
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typedef enum { ICPLB, DCPLB } cplb_type;
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static char page_strtbl[][3] = { "1K", "4K", "1M", "4M" };
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#define page(flags) (((flags) & 0x30000) >> 16)
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#define strpage(flags) page_strtbl[page(flags)]
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#ifdef CONFIG_MPU
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static char *cplb_print_entry(char *buf, cplb_type type, unsigned int cpu)
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{
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struct cplb_entry *tbl;
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int switched;
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int i;
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if (type == ICPLB) {
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tbl = icplb_tbl[cpu];
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switched = first_switched_icplb;
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} else {
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tbl = dcplb_tbl[cpu];
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switched = first_switched_dcplb;
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}
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buf += sprintf(buf, "Index\tAddress\t\tData\tSize\tU/RD\tU/WR\tS/WR\tSwitch\n");
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for (i = 0; i < MAX_CPLBS; ++i) {
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unsigned long data = tbl[i].data;
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unsigned long addr = tbl[i].addr;
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if (!(data & CPLB_VALID))
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continue;
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buf += sprintf(buf,
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"%d\t0x%08lx\t%05lx\t%s\t%c\t%c\t%c\t%c\n",
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i, addr, data, strpage(data),
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(data & CPLB_USER_RD) ? 'Y' : 'N',
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(data & CPLB_USER_WR) ? 'Y' : 'N',
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(data & CPLB_SUPV_WR) ? 'Y' : 'N',
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i < switched ? 'N' : 'Y');
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}
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buf += sprintf(buf, "\n");
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return buf;
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}
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#else
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static int page_size_table[4] = {
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0x00000400, /* 1K */
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0x00001000, /* 4K */
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0x00100000, /* 1M */
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0x00400000 /* 4M */
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};
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static int cplb_find_entry(unsigned long *cplb_addr,
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unsigned long *cplb_data, unsigned long addr,
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unsigned long data)
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{
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int i;
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for (i = 0; i < 16; ++i)
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if (addr >= cplb_addr[i] &&
|
||||
addr < cplb_addr[i] + page_size_table[page(cplb_data[i])] &&
|
||||
cplb_data[i] == data)
|
||||
return i;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
static char *cplb_print_entry(char *buf, cplb_type type, unsigned int cpu)
|
||||
{
|
||||
unsigned long *p_addr, *p_data, *p_icount, *p_ocount;
|
||||
unsigned long *cplb_addr, *cplb_data;
|
||||
int entry = 0, used_cplb = 0;
|
||||
|
||||
if (type == ICPLB) {
|
||||
p_addr = ipdt_tables[cpu];
|
||||
p_data = ipdt_tables[cpu] + 1;
|
||||
p_icount = ipdt_swapcount_tables[cpu];
|
||||
p_ocount = ipdt_swapcount_tables[cpu] + 1;
|
||||
cplb_addr = (unsigned long *)ICPLB_ADDR0;
|
||||
cplb_data = (unsigned long *)ICPLB_DATA0;
|
||||
} else {
|
||||
p_addr = dpdt_tables[cpu];
|
||||
p_data = dpdt_tables[cpu] + 1;
|
||||
p_icount = dpdt_swapcount_tables[cpu];
|
||||
p_ocount = dpdt_swapcount_tables[cpu] + 1;
|
||||
cplb_addr = (unsigned long *)DCPLB_ADDR0;
|
||||
cplb_data = (unsigned long *)DCPLB_DATA0;
|
||||
}
|
||||
|
||||
buf += sprintf(buf, "Address\t\tData\tSize\tValid\tLocked\tSwapin\tiCount\toCount\n");
|
||||
|
||||
while (*p_addr != 0xffffffff) {
|
||||
entry = cplb_find_entry(cplb_addr, cplb_data, *p_addr, *p_data);
|
||||
if (entry >= 0)
|
||||
used_cplb |= 1 << entry;
|
||||
|
||||
buf += sprintf(buf,
|
||||
"0x%08lx\t0x%05lx\t%s\t%c\t%c\t%2d\t%ld\t%ld\n",
|
||||
*p_addr, *p_data, strpage(*p_data),
|
||||
(*p_data & CPLB_VALID) ? 'Y' : 'N',
|
||||
(*p_data & CPLB_LOCK) ? 'Y' : 'N', entry, *p_icount,
|
||||
*p_ocount);
|
||||
|
||||
p_addr += 2;
|
||||
p_data += 2;
|
||||
p_icount += 2;
|
||||
p_ocount += 2;
|
||||
}
|
||||
|
||||
if (used_cplb != 0xffff) {
|
||||
buf += sprintf(buf, "Unused/mismatched CPLBs:\n");
|
||||
|
||||
for (entry = 0; entry < 16; ++entry)
|
||||
if (0 == ((1 << entry) & used_cplb)) {
|
||||
int flags = cplb_data[entry];
|
||||
buf += sprintf(buf,
|
||||
"%2d: 0x%08lx\t0x%05x\t%s\t%c\t%c\n",
|
||||
entry, cplb_addr[entry], flags, strpage(flags),
|
||||
(flags & CPLB_VALID) ? 'Y' : 'N',
|
||||
(flags & CPLB_LOCK) ? 'Y' : 'N');
|
||||
}
|
||||
}
|
||||
|
||||
buf += sprintf(buf, "\n");
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
static int cplbinfo_proc_output(char *buf, void *data)
|
||||
{
|
||||
unsigned int cpu = (unsigned int)data;
|
||||
char *p = buf;
|
||||
|
||||
if (bfin_read_IMEM_CONTROL() & ENICPLB) {
|
||||
p += sprintf(p, "Instruction CPLB entry:\n");
|
||||
p = cplb_print_entry(p, ICPLB, cpu);
|
||||
} else
|
||||
p += sprintf(p, "Instruction CPLB is disabled.\n\n");
|
||||
|
||||
if (bfin_read_DMEM_CONTROL() & ENDCPLB) {
|
||||
p += sprintf(p, "Data CPLB entry:\n");
|
||||
p = cplb_print_entry(p, DCPLB, cpu);
|
||||
} else
|
||||
p += sprintf(p, "Data CPLB is disabled.\n\n");
|
||||
|
||||
return p - buf;
|
||||
}
|
||||
|
||||
static int cplbinfo_read_proc(char *page, char **start, off_t off,
|
||||
int count, int *eof, void *data)
|
||||
{
|
||||
int len = cplbinfo_proc_output(page, data);
|
||||
if (len <= off + count)
|
||||
*eof = 1;
|
||||
*start = page + off;
|
||||
len -= off;
|
||||
return max(min(len, count), 0);
|
||||
}
|
||||
|
||||
static int __init cplbinfo_init(void)
|
||||
{
|
||||
struct proc_dir_entry *parent, *entry;
|
||||
unsigned int cpu;
|
||||
unsigned char str[10];
|
||||
|
||||
parent = proc_mkdir("cplbinfo", NULL);
|
||||
if (!parent)
|
||||
return -ENOMEM;
|
||||
|
||||
for_each_online_cpu(cpu) {
|
||||
sprintf(str, "cpu%u", cpu);
|
||||
entry = create_proc_entry(str, 0, parent);
|
||||
if (!entry)
|
||||
return -ENOMEM;
|
||||
|
||||
entry->read_proc = cplbinfo_read_proc;
|
||||
entry->data = (void *)cpu;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
late_initcall(cplbinfo_init);
|
||||
Reference in New Issue