text: /*
   * pmc.c
   * Copyright (C) 2001 Dave Engebretsen & Mike Corrigan IBM Corporation
   * 
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   */
  
  /* Change Activity:
   * 2001/06/05 : engebret : Created.
   * End Change Activity 
   */
  
  #include <asm/proc_fs.h>
  #include <asm/paca.h>
  #include <asm/iSeries/ItLpPaca.h>
  #include <asm/iSeries/ItLpQueue.h>
  #include <asm/processor.h>
  
  #include <linux/proc_fs.h>
  #include <linux/spinlock.h>
  #include <asm/pmc.h>
  #include <asm/uaccess.h>
  #include <asm/naca.h>
  
  struct _pmc_sw pmc_sw_system = {
  	0  
  };
  
  struct _pmc_sw pmc_sw_cpu[NR_CPUS] = {
  	{0 }, 
  };
  
  /*
   * Provide enough storage for either system level counters or
   * one cpu's counters.
   */
  struct _pmc_sw_text pmc_sw_text;
  struct _pmc_hw_text pmc_hw_text;
  
  char *
  ppc64_pmc_stab(int file)
  {
  	int  n;
  	unsigned long stab_faults, stab_capacity_castouts, stab_invalidations; 
  	unsigned long i;
  
  	stab_faults = stab_capacity_castouts = stab_invalidations = n = 0;
  
  	if (file == -1) {
  		for (i = 0;  i < NR_CPUS; i++) {
  			if (!cpu_online(i))
  				continue;
  			stab_faults += pmc_sw_cpu[i].stab_faults;
  			stab_capacity_castouts += pmc_sw_cpu[i].stab_capacity_castouts;
  			stab_invalidations += pmc_sw_cpu[i].stab_invalidations;
  		}
  		n += sprintf(pmc_sw_text.buffer + n,    
  			     "Faults         0x%lx\n", stab_faults); 
  		n += sprintf(pmc_sw_text.buffer + n, 
  			     "Castouts       0x%lx\n", stab_capacity_castouts); 
  		n += sprintf(pmc_sw_text.buffer + n, 
  			     "Invalidations  0x%lx\n", stab_invalidations); 
  	} else {
  		n += sprintf(pmc_sw_text.buffer + n,
  			     "Faults         0x%lx\n", 
  			     pmc_sw_cpu[file].stab_faults);
  		
  		n += sprintf(pmc_sw_text.buffer + n,   
  			     "Castouts       0x%lx\n", 
  			     pmc_sw_cpu[file].stab_capacity_castouts);
  		
  		n += sprintf(pmc_sw_text.buffer + n,   
  			     "Invalidations  0x%lx\n", 
  			     pmc_sw_cpu[file].stab_invalidations);
  
  		for (i = 0; i < STAB_ENTRY_MAX; i++) {
  			if (pmc_sw_cpu[file].stab_entry_use[i]) {
  				n += sprintf(pmc_sw_text.buffer + n,   
  					     "Entry %02ld       0x%lx\n", i, 
  					     pmc_sw_cpu[file].stab_entry_use[i]);
  			}
  		}
  
  	}
  
  	return(pmc_sw_text.buffer); 
  }
  
  char *
  ppc64_pmc_htab(int file)
  {
  	int  n;
  	unsigned long htab_primary_overflows, htab_capacity_castouts;
  	unsigned long htab_read_to_write_faults; 
  
  	htab_primary_overflows = htab_capacity_castouts = 0;
  	htab_read_to_write_faults = n = 0;
  
  	if (file == -1) {
  		n += sprintf(pmc_sw_text.buffer + n,    
  			     "Primary Overflows  0x%lx\n", 
  			     pmc_sw_system.htab_primary_overflows); 
  		n += sprintf(pmc_sw_text.buffer + n, 
  			     "Castouts           0x%lx\n", 
  			     pmc_sw_system.htab_capacity_castouts); 
  	} else {
  		n += sprintf(pmc_sw_text.buffer + n,
  			     "Primary Overflows  N/A\n");
  
  		n += sprintf(pmc_sw_text.buffer + n,   
  			     "Castouts           N/A\n\n");
  
  	}
  	
  	return(pmc_sw_text.buffer); 
  }
  
  char *
  ppc64_pmc_hw(int file)
  {
  	int  n;
  
  	n = 0;
  	if (file == -1) {
  		n += sprintf(pmc_hw_text.buffer + n, "Not Implemented\n");
  	} else {
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "MMCR0  0x%lx\n", mfspr(MMCR0)); 
  		n += sprintf(pmc_hw_text.buffer + n, 
  			     "MMCR1  0x%lx\n", mfspr(MMCR1)); 
  #if 0
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "MMCRA  0x%lx\n", mfspr(MMCRA)); 
  #endif
  
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC1   0x%lx\n", mfspr(PMC1)); 
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC2   0x%lx\n", mfspr(PMC2)); 
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC3   0x%lx\n", mfspr(PMC3)); 
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC4   0x%lx\n", mfspr(PMC4)); 
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC5   0x%lx\n", mfspr(PMC5)); 
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC6   0x%lx\n", mfspr(PMC6)); 
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC7   0x%lx\n", mfspr(PMC7)); 
  		n += sprintf(pmc_hw_text.buffer + n,    
  			     "PMC8   0x%lx\n", mfspr(PMC8)); 
  	}
  
  	return(pmc_hw_text.buffer); 
  }
  