[PATCH][PPC64] lparcfg seq_file updates (pass2)

From: will schmidt
Date: Thu Jul 01 2004 - 16:18:47 EST

Hi All,
This is another pass at the lparcfg changes. I believe i've got the
whitespace problem fixed up.

- Per Pauls request I've removed the vpurr references, and left
just a stub function get_purr().
- Answering Dave's question on the lparcfg_count_active_processors()
function.. This is for the cases where we have some number of
virtual processors that are different than the number of physical
processors in the system. This doesnt happen on most systems, but
does occur in some of the partitioned configurations. I've
added a similar comment above the function.
- this should apply clean to latest linus tree. (test-applied against
2.6.7-rc3).

This patch includes updates and cleanup for the PPC64 proc/lparcfg interface.
- use seq_file's seq_printf for output
- remove redundant e2a function. (use viopath.c's instead)
- change to Kconfig to allow building as a module.
- export required symbols from LparData.c

Please apply. (or provide comments..)
Thanks,
-Will


Signed-off-by: Will Schmidt <willschm@xxxxxxxxxx>


diff -urN linux-2.6.7.orig/arch/ppc64/Kconfig linux-2.6.7/arch/ppc64/Kconfig
--- linux-2.6.7.orig/arch/ppc64/Kconfig 2004-06-29 15:43:16.000000000 -0500
+++ linux-2.6.7/arch/ppc64/Kconfig 2004-06-29 17:08:30.000000000 -0500
@@ -226,7 +226,7 @@
depends on PPC_RTAS

config LPARCFG
- bool "LPAR Configuration Data"
+ tristate "LPAR Configuration Data"
help
Provide system capacity information via human readable
<key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
diff -urN linux-2.6.7.orig/arch/ppc64/kernel/LparData.c linux-2.6.7/arch/ppc64/kernel/LparData.c
--- linux-2.6.7.orig/arch/ppc64/kernel/LparData.c 2004-06-29 15:43:16.000000000 -0500
+++ linux-2.6.7/arch/ppc64/kernel/LparData.c 2004-06-29 17:02:39.000000000 -0500
@@ -10,6 +10,7 @@
#include <asm/page.h>
#include <stddef.h>
#include <linux/threads.h>
+#include <linux/module.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/naca.h>
@@ -123,12 +124,14 @@
(u64)InstructionAccessSLB_Iseries /* 0x480 I-SLB */
}
};
+EXPORT_SYMBOL(itLpNaca);

/* May be filled in by the hypervisor so cannot end up in the BSS */
struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));

/* May be filled in by the hypervisor so cannot end up in the BSS */
struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data")));
+EXPORT_SYMBOL(xItExtVpdPanel);

#define maxPhysicalProcessors 32

diff -urN linux-2.6.7.orig/arch/ppc64/kernel/lparcfg.c linux-2.6.7/arch/ppc64/kernel/lparcfg.c
--- linux-2.6.7.orig/arch/ppc64/kernel/lparcfg.c 2004-06-29 15:43:16.000000000 -0500
+++ linux-2.6.7/arch/ppc64/kernel/lparcfg.c 2004-06-30 09:06:23.000000000 -0500
@@ -5,6 +5,7 @@
* Copyright (c) 2003 Dave Engebretsen
* Will Schmidt willschm@xxxxxxxxxx
* SPLPAR updates, Copyright (c) 2003 Will Schmidt IBM Corporation.
+ * seq_file updates, Copyright (c) 2004 Will Schmidt IBM Corporation.
* Nathan Lynch nathanl@xxxxxxxxxxxxxx
* Added lparcfg_write, Copyright (C) 2004 Nathan Lynch IBM Corporation.
*
@@ -23,15 +24,39 @@
#include <linux/errno.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
+#include <linux/seq_file.h>
#include <asm/uaccess.h>
#include <asm/iSeries/HvLpConfig.h>
#include <asm/iSeries/ItLpPaca.h>
+#include <asm/iSeries/LparData.h>
#include <asm/hvcall.h>
#include <asm/cputable.h>

-#define MODULE_VERS "1.0"
+#define MODULE_VERS "1.3"
#define MODULE_NAME "lparcfg"

+/* #define LPARCFG_DEBUG */
+
+/* find a better place for this function... */
+void log_plpar_hcall_return(unsigned long rc,char * tag)
+{
+ if (rc==0) /* success, return */
+ return;
+/* check for null tag ? */
+ if (rc == H_Hardware)
+ printk(KERN_INFO "plpar-hcall (%s) failed with hardware fault\n",tag);
+ else if (rc == H_Function)
+ printk(KERN_INFO "plpar-hcall (%s) failed; function not allowed\n",tag);
+ else if (rc == H_Authority)
+ printk(KERN_INFO "plpar-hcall (%s) failed; not authorized to this function\n",tag);
+ else if (rc == H_Parameter)
+ printk(KERN_INFO "plpar-hcall (%s) failed; Bad parameter(s)\n",tag);
+ else
+ printk(KERN_INFO "plpar-hcall (%s) failed with unexpected rc(0x%lx)\n",tag,rc);
+
+}
+
+
static struct proc_dir_entry *proc_ppc64_lparcfg;
#define LPARCFG_BUFF_SIZE 4096

@@ -39,103 +64,20 @@

#define lparcfg_write NULL

-static unsigned char e2a(unsigned char x)
-{
- switch (x) {
- case 0xF0:
- return '0';
- case 0xF1:
- return '1';
- case 0xF2:
- return '2';
- case 0xF3:
- return '3';
- case 0xF4:
- return '4';
- case 0xF5:
- return '5';
- case 0xF6:
- return '6';
- case 0xF7:
- return '7';
- case 0xF8:
- return '8';
- case 0xF9:
- return '9';
- case 0xC1:
- return 'A';
- case 0xC2:
- return 'B';
- case 0xC3:
- return 'C';
- case 0xC4:
- return 'D';
- case 0xC5:
- return 'E';
- case 0xC6:
- return 'F';
- case 0xC7:
- return 'G';
- case 0xC8:
- return 'H';
- case 0xC9:
- return 'I';
- case 0xD1:
- return 'J';
- case 0xD2:
- return 'K';
- case 0xD3:
- return 'L';
- case 0xD4:
- return 'M';
- case 0xD5:
- return 'N';
- case 0xD6:
- return 'O';
- case 0xD7:
- return 'P';
- case 0xD8:
- return 'Q';
- case 0xD9:
- return 'R';
- case 0xE2:
- return 'S';
- case 0xE3:
- return 'T';
- case 0xE4:
- return 'U';
- case 0xE5:
- return 'V';
- case 0xE6:
- return 'W';
- case 0xE7:
- return 'X';
- case 0xE8:
- return 'Y';
- case 0xE9:
- return 'Z';
- }
- return ' ';
-}
+extern unsigned char e2a(unsigned char);

/*
* Methods used to fetch LPAR data when running on an iSeries platform.
*/
-static int lparcfg_data(unsigned char *buf, unsigned long size)
+static int lparcfg_data(struct seq_file *m,void *v)
{
- unsigned long n = 0, pool_id, lp_index;
+ unsigned long pool_id, lp_index;
int shared, entitled_capacity, max_entitled_capacity;
int processors, max_processors;
struct paca_struct *lpaca = get_paca();

- if((buf == NULL) || (size > LPARCFG_BUFF_SIZE)) {
- return -EFAULT;
- }
- memset(buf, 0, size);
-
shared = (int)(lpaca->xLpPacaPtr->xSharedProc);
- n += scnprintf(buf, LPARCFG_BUFF_SIZE - n,
- "serial_number=%c%c%c%c%c%c%c\n",
+ seq_printf(m, "serial_number=%c%c%c%c%c%c%c\n",
e2a(xItExtVpdPanel.mfgID[2]),
e2a(xItExtVpdPanel.mfgID[3]),
e2a(xItExtVpdPanel.systemSerial[1]),
@@ -144,32 +86,26 @@
e2a(xItExtVpdPanel.systemSerial[4]),
e2a(xItExtVpdPanel.systemSerial[5]));

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_type=%c%c%c%c\n",
+ seq_printf(m, "system_type=%c%c%c%c\n",
e2a(xItExtVpdPanel.machineType[0]),
e2a(xItExtVpdPanel.machineType[1]),
e2a(xItExtVpdPanel.machineType[2]),
e2a(xItExtVpdPanel.machineType[3]));

lp_index = HvLpConfig_getLpIndex();
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_id=%d\n", (int)lp_index);
+ seq_printf(m, "partition_id=%d\n", (int)lp_index);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_active_processors=%d\n",
+ seq_printf(m, "system_active_processors=%d\n",
(int)HvLpConfig_getSystemPhysicalProcessors());

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_potential_processors=%d\n",
+ seq_printf(m, "system_potential_processors=%d\n",
(int)HvLpConfig_getSystemPhysicalProcessors());

processors = (int)HvLpConfig_getPhysicalProcessors();
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_active_processors=%d\n", processors);
+ seq_printf(m, "partition_active_processors=%d\n", processors);

max_processors = (int)HvLpConfig_getMaxPhysicalProcessors();
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_potential_processors=%d\n", max_processors);
+ seq_printf(m, "partition_potential_processors=%d\n", max_processors);

if(shared) {
entitled_capacity = HvLpConfig_getSharedProcUnits();
@@ -178,23 +114,18 @@
entitled_capacity = processors * 100;
max_entitled_capacity = max_processors * 100;
}
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_entitled_capacity=%d\n", entitled_capacity);
+ seq_printf(m, "partition_entitled_capacity=%d\n", entitled_capacity);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_max_entitled_capacity=%d\n",
+ seq_printf(m, "partition_max_entitled_capacity=%d\n",
max_entitled_capacity);

if(shared) {
pool_id = HvLpConfig_getSharedPoolIndex();
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n, "pool=%d\n",
- (int)pool_id);
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "pool_capacity=%d\n", (int)(HvLpConfig_getNumProcsInSharedPool(pool_id)*100));
+ seq_printf(m, "pool=%d\n", (int)pool_id);
+ seq_printf(m, "pool_capacity=%d\n", (int)(HvLpConfig_getNumProcsInSharedPool(pool_id)*100));
}

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "shared_processor_mode=%d\n", shared);
+ seq_printf(m, "shared_processor_mode=%d\n", shared);

return 0;
}
@@ -217,7 +148,7 @@
* XXXX - reserved (0)
* XXXX - Group Number
* XXXX - Pool Number.
- * R7 (PPOONNMMLLKKJJII)
+ * R7 (IIJJKKLLMMNNOOPP).
* XX - reserved. (0)
* XX - bit 0-6 reserved (0). bit 7 is Capped indicator.
* XX - variable processor Capacity Weight
@@ -225,168 +156,253 @@
* XXXX - Active processors in Physical Processor Pool.
* XXXX - Processors active on platform.
*/
-unsigned int h_get_ppp(unsigned long *entitled,unsigned long *unallocated,unsigned long *aggregation,unsigned long *resource)
+static unsigned int h_get_ppp(unsigned long *entitled,unsigned long *unallocated,unsigned long *aggregation,unsigned long *resource)
{
unsigned long rc;
rc = plpar_hcall_4out(H_GET_PPP,0,0,0,0,entitled,unallocated,aggregation,resource);
- return 0;
+
+ log_plpar_hcall_return(rc,"H_GET_PPP");
+
+ return rc;
}

-/*
- * get_splpar_potential_characteristics().
- * Retrieve the potential_processors and max_entitled_capacity values
- * through the get-system-parameter rtas call.
+static void h_pic(unsigned long *pool_idle_time,unsigned long *num_procs)
+{
+ unsigned long rc;
+ unsigned long dummy;
+ rc = plpar_hcall(H_PIC,0,0,0,0,pool_idle_time,num_procs,&dummy);
+
+ log_plpar_hcall_return(rc,"H_PIC");
+}
+
+static unsigned long get_purr(void);
+/* ToDo: get sum of purr across all processors. The purr collection code
+ * is coming, but at this time is still problematic, so for now this
+ * function will return 0.
*/
+static unsigned long get_purr()
+{
+ unsigned long sum_purr=0;
+ return sum_purr;
+}
+
#define SPLPAR_CHARACTERISTICS_TOKEN 20
#define SPLPAR_MAXLENGTH 1026*(sizeof(char))
-unsigned int get_splpar_potential_characteristics(void)
+
+/*
+ * parse_system_parameter_string()
+ * Retrieve the potential_processors, max_entitled_capacity and friends
+ * through the get-system-parameter rtas call. Replace keyword strings as
+ * necessary.
+ */
+static void parse_system_parameter_string(struct seq_file *m)
{
- /* return 0 for now. Underlying rtas functionality is not yet complete. 12/01/2003*/
- return 0;
-#if 0
long call_status;
unsigned long ret[2];

- char * buffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
-
- printk("token for ibm,get-system-parameter (0x%x)\n",rtas_token("ibm,get-system-parameter"));
+ char * local_buffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
+ if (!local_buffer) {
+ printk(KERN_ERR "%s %s kmalloc failure at line %d \n",__FILE__,__FUNCTION__,__LINE__);
+ return;
+ }

+ spin_lock(&rtas_data_buf_lock);
+ memset(rtas_data_buf, 0, SPLPAR_MAXLENGTH);
call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
NULL,
SPLPAR_CHARACTERISTICS_TOKEN,
- &buffer,
+ __pa(rtas_data_buf),
SPLPAR_MAXLENGTH,
(void *)&ret);
+ memcpy(local_buffer,rtas_data_buf, SPLPAR_MAXLENGTH);
+ spin_unlock(&rtas_data_buf_lock);

if (call_status!=0) {
- printk("Error calling get-system-parameter (0x%lx)\n",call_status);
- kfree(buffer);
- return -1;
+ printk(KERN_INFO "%s %s Error calling get-system-parameter (0x%lx)\n",__FILE__,__FUNCTION__,call_status);
} else {
- printk("get-system-parameter (%s)\n",buffer);
- kfree(buffer);
- /* TODO: Add code here to parse out value for system_potential_processors and partition_max_entitled_capacity */
- return 1;
+ int splpar_strlen;
+ int idx,w_idx;
+ char * workbuffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
+ if (!workbuffer) {
+ printk(KERN_ERR "%s %s kmalloc failure at line %d \n",__FILE__,__FUNCTION__,__LINE__);
+ return;
+ }
+
+#ifdef LPARCFG_DEBUG
+ printk(KERN_INFO "success calling get-system-parameter \n");
+#endif
+ splpar_strlen=local_buffer[0]*16+local_buffer[1];
+ local_buffer+=2; /* step over strlen value */
+
+ memset(workbuffer, 0, SPLPAR_MAXLENGTH);
+ w_idx=0; idx=0;
+ while ((*local_buffer) && (idx<splpar_strlen)) {
+ workbuffer[w_idx++]=local_buffer[idx++];
+ if ((local_buffer[idx]==',')||(local_buffer[idx]=='\0')) {
+ workbuffer[w_idx]='\0';
+ if (w_idx) /* avoid the empty string */
+ {
+ seq_printf(m, "%s\n",workbuffer);
+ }
+ memset(workbuffer, 0, SPLPAR_MAXLENGTH);
+ idx++; /* skip the comma */
+ w_idx=0;
+ } else if (local_buffer[idx]=='=') {
+ /* code here to replace workbuffer contents
+ with different keyword strings */
+ if (0==strcmp(workbuffer,"MaxEntCap")) {
+ strcpy(workbuffer,"partition_max_entitled_capacity\0");
+ w_idx=strlen(workbuffer);
+ }
+ if (0==strcmp(workbuffer,"MaxPlatProcs")) {
+ strcpy(workbuffer,"system_potential_processors\0");
+ w_idx=strlen(workbuffer);
+ }
+ }
+ }
+ kfree(workbuffer);
+ local_buffer-=2; /* back up over strlen value */
}
+ kfree(local_buffer);
+ return;
+}
+
+static int lparcfg_count_active_processors(void);
+
+/* Return the number of physical processors in the system. In some cases
+ * the number of real CPU's is different than the number of /proc/cpuinfo
+ * or /sys/devices/system/cpu entries.
+ */
+static int lparcfg_count_active_processors()
+{
+ struct device_node *cpus_dn = NULL;
+ int count=0;
+ for (cpus_dn = of_find_node_by_type(NULL, "cpu");
+ cpus_dn;
+ cpus_dn = of_find_node_by_type(cpus_dn, "cpu")) {
+#ifdef LPARCFG_DEBUG
+ printk(KERN_ERR "cpus_dn %p \n",cpus_dn);
#endif
+ count++;
+ }
+ of_node_put(cpus_dn);
+ return count;
}

-static int lparcfg_data(unsigned char *buf, unsigned long size)
+static int lparcfg_data(struct seq_file *m, void *v)
{
- unsigned long n = 0;
- int shared, max_entitled_capacity;
- int processors, system_active_processors, system_potential_processors;
- struct device_node *root;
+ int system_active_processors;
+ struct device_node *rootdn;
const char *model = "";
const char *system_id = "";
unsigned int *lp_index_ptr, lp_index = 0;
struct device_node *rtas_node;
- int *ip;
- unsigned long h_entitled,h_unallocated,h_aggregation,h_resource;
+ int *lrdrp;

- if((buf == NULL) || (size > LPARCFG_BUFF_SIZE)) {
- return -EFAULT;
+ rootdn = find_path_device("/");
+ if (rootdn) {
+ model = get_property(rootdn, "model", NULL);
+ system_id = get_property(rootdn, "system-id", NULL);
+ lp_index_ptr = (unsigned int *)get_property(rootdn, "ibm,partition-no", NULL);
+ if (lp_index_ptr) lp_index = *lp_index_ptr;
}
- memset(buf, 0, size);

- root = find_path_device("/");
- if (root) {
- model = get_property(root, "model", NULL);
- system_id = get_property(root, "system-id", NULL);
- lp_index_ptr = (unsigned int *)get_property(root, "ibm,partition-no", NULL);
- if(lp_index_ptr) lp_index = *lp_index_ptr;
- }

- n = scnprintf(buf, LPARCFG_BUFF_SIZE - n,
- "serial_number=%s\n", system_id);
+ seq_printf(m,"%s %s \n",MODULE_NAME,MODULE_VERS);
+
+ seq_printf(m,"serial_number=%s\n", system_id);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_type=%s\n", model);
+ seq_printf(m,"system_type=%s\n", model);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_id=%d\n", (int)lp_index);
+ seq_printf(m,"partition_id=%d\n", (int)lp_index);

rtas_node = find_path_device("/rtas");
- ip = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL);
- if (ip == NULL) {
+ lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL);
+
+ if (lrdrp == NULL) {
system_active_processors = systemcfg->processorCount;
} else {
- system_active_processors = *(ip + 4);
- }
+ system_active_processors = *(lrdrp + 4);
+ }

if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
+ unsigned long h_entitled,h_unallocated,h_aggregation,h_resource;
+ unsigned long pool_idle_time,pool_procs;
+ unsigned long purr;
+
h_get_ppp(&h_entitled,&h_unallocated,&h_aggregation,&h_resource);
-#ifdef DEBUG
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "R4=0x%lx\n", h_entitled);
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "R5=0x%lx\n", h_unallocated);
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "R6=0x%lx\n", h_aggregation);
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "R7=0x%lx\n", h_resource);
-#endif /* DEBUG */
- }

- if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
- system_potential_processors = get_splpar_potential_characteristics();
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_active_processors=%ld\n",
+ seq_printf(m, "R4=0x%lx\n", h_entitled);
+ seq_printf(m, "R5=0x%lx\n", h_unallocated);
+ seq_printf(m, "R6=0x%lx\n", h_aggregation);
+ seq_printf(m, "R7=0x%lx\n", h_resource);
+
+ h_pic(&pool_idle_time,&pool_procs);
+
+ purr = get_purr();
+
+ /* this call handles the ibm,get-system-parameter contents */
+ parse_system_parameter_string(m);
+
+ seq_printf(m, "partition_entitled_capacity=%ld\n",
+ h_entitled);
+
+ seq_printf(m, "pool=%ld\n",
+ (h_aggregation >> 0*8) & 0xffff);
+
+ seq_printf(m, "group=%ld\n",
+ (h_aggregation >> 2*8) & 0xffff);
+
+ seq_printf(m, "system_active_processors=%ld\n",
+ (h_resource >> 0*8) & 0xffff);
+
+ seq_printf(m, "pool_capacity=%ld\n",
(h_resource >> 2*8) & 0xffff);
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_potential_processors=%d\n",
- system_potential_processors);
- } else {
- system_potential_processors = system_active_processors;
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_active_processors=%d\n",
- system_active_processors);
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "system_potential_processors=%d\n",
- system_potential_processors);
- }

- processors = systemcfg->processorCount;
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_active_processors=%d\n", processors);
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_potential_processors=%d\n",
- system_active_processors);
+ seq_printf(m, "unallocated_capacity_weight=%ld\n",
+ (h_resource >> 4*8) & 0xFF);

- /* max_entitled_capacity will come out of get_splpar_potential_characteristics() when that function is complete */
- max_entitled_capacity = system_active_processors * 100;
- if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_entitled_capacity=%ld\n", h_entitled);
- } else {
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_entitled_capacity=%d\n", system_active_processors*100);
- }
+ seq_printf(m, "capacity_weight=%ld\n",
+ (h_resource >> 5*8) & 0xFF);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "partition_max_entitled_capacity=%d\n",
- max_entitled_capacity);
+ seq_printf(m, "capped=%ld\n",
+ (h_resource >> 6*8) & 0x01);

- shared = 0;
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "shared_processor_mode=%d\n", shared);
+ seq_printf(m, "unallocated_capacity=%ld\n",
+ h_unallocated);

- if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "pool=%ld\n", (h_aggregation >> 0*8)&0xffff);
+ seq_printf(m, "pool_idle_time=%ld\n",
+ pool_idle_time);
+
+ seq_printf(m, "pool_num_procs=%ld\n",
+ pool_procs);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "pool_capacity=%ld\n", (h_resource >> 3*8) &0xffff);
+ seq_printf(m, "purr=%ld\n",
+ purr);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "group=%ld\n", (h_aggregation >> 2*8)&0xffff);
+ } else /* non SPLPAR case */ {
+ seq_printf(m, "system_active_processors=%d\n",
+ system_active_processors);
+
+ seq_printf(m, "system_potential_processors=%d\n",
+ system_active_processors);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "capped=%ld\n", (h_resource >> 6*8)&0x40);
+ seq_printf(m, "partition_max_entitled_capacity=%d\n",
+ 100*system_active_processors);

- n += scnprintf(buf+n, LPARCFG_BUFF_SIZE - n,
- "capacity_weight=%d\n", (int)(h_resource>>5*8)&0xFF);
+ seq_printf(m, "partition_entitled_capacity=%d\n",
+ system_active_processors*100);
}
+
+ seq_printf(m, "partition_active_processors=%d\n",
+ (int) lparcfg_count_active_processors());
+
+ seq_printf(m, "partition_potential_processors=%d\n",
+ system_active_processors);
+
+ seq_printf(m, "shared_processor_mode=%d\n",
+ paca[0].xLpPaca.xSharedProc);
+
return 0;
}

@@ -484,58 +500,16 @@

#endif /* CONFIG_PPC_PSERIES */

-
-static ssize_t lparcfg_read(struct file *file, char *buf,
- size_t count, loff_t *ppos)
-{
- struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
- unsigned long *data = (unsigned long *)dp->data;
- unsigned long p;
- ssize_t read;
- char * pnt;
-
- if (!data) {
- printk(KERN_ERR "lparcfg: read failed no data\n");
- return -EIO;
- }
-
- if(ppos) {
- p = *ppos;
- } else {
- return -EFAULT;
- }
-
- if (p >= LPARCFG_BUFF_SIZE) return 0;
-
- lparcfg_data((unsigned char *)data, LPARCFG_BUFF_SIZE);
- if (count > (strlen((char *)data) - p))
- count = (strlen((char *)data)) - p;
- read = 0;
-
- pnt = (char *)(data) + p;
- copy_to_user(buf, (void *)pnt, count);
- read += count;
- *ppos += read;
- return read;
-}
-
static int lparcfg_open(struct inode * inode, struct file * file)
{
- struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
- unsigned int *data = (unsigned int *)dp->data;
-
- if (!data) {
- printk(KERN_ERR "lparcfg: open failed no data\n");
- return -EIO;
- }
-
- return 0;
+ return single_open(file,lparcfg_data,NULL);
}

struct file_operations lparcfg_fops = {
owner: THIS_MODULE,
- read: lparcfg_read,
+ read: seq_read,
open: lparcfg_open,
+ release: single_release,
};

int __init lparcfg_init(void)
diff -urN linux-2.6.7.orig/arch/ppc64/kernel/viopath.c linux-2.6.7/arch/ppc64/kernel/viopath.c
--- linux-2.6.7.orig/arch/ppc64/kernel/viopath.c 2004-06-29 15:43:16.000000000 -0500
+++ linux-2.6.7/arch/ppc64/kernel/viopath.c 2004-06-29 17:02:39.000000000 -0500
@@ -108,7 +108,7 @@
#define VIOPATH_KERN_WARN KERN_WARNING "viopath: "
#define VIOPATH_KERN_INFO KERN_INFO "viopath: "

-static unsigned char e2a(unsigned char x)
+unsigned char e2a(unsigned char x)
{
switch (x) {
case 0xF0:
@@ -186,6 +186,7 @@
}
return ' ';
}
+EXPORT_SYMBOL(e2a);

static int proc_viopath_show(struct seq_file *m, void *v)
{
-
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