linux 2.6.16.38 w/ vs2.0.3-rc1
[linux-2.6.git] / arch / powerpc / kernel / lparcfg.c
index 23f34da..e789fef 100644 (file)
@@ -18,6 +18,7 @@
  * keyword - value pairs that specify the configuration of the partition.
  */
 
+#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/errno.h>
@@ -36,7 +37,7 @@
 #include <asm/prom.h>
 #include <asm/vdso_datapage.h>
 
-#define MODULE_VERS "1.7"
+#define MODULE_VERS "1.6"
 #define MODULE_NAME "lparcfg"
 
 /* #define LPARCFG_DEBUG */
 static struct proc_dir_entry *proc_ppc64_lparcfg;
 #define LPARCFG_BUFF_SIZE 4096
 
+#ifdef CONFIG_PPC_ISERIES
+
 /*
- * Track sum of all purrs across all processors. This is used to further
- * calculate usage values by different applications
+ * For iSeries legacy systems, the PPA purr function is available from the
+ * emulated_time_base field in the paca.
  */
 static unsigned long get_purr(void)
 {
        unsigned long sum_purr = 0;
        int cpu;
 
-       for_each_possible_cpu(cpu) {
-               if (firmware_has_feature(FW_FEATURE_ISERIES))
-                       sum_purr += lppaca[cpu].emulated_time_base;
-               else {
-                       struct cpu_usage *cu;
+       for_each_cpu(cpu) {
+               sum_purr += lppaca[cpu].emulated_time_base;
 
-                       cu = &per_cpu(cpu_usage_array, cpu);
-                       sum_purr += cu->current_tb;
-               }
+#ifdef PURR_DEBUG
+               printk(KERN_INFO "get_purr for cpu (%d) has value (%ld) \n",
+                       cpu, lppaca[cpu].emulated_time_base);
+#endif
        }
        return sum_purr;
 }
 
-#ifdef CONFIG_PPC_ISERIES
+#define lparcfg_write NULL
 
 /*
  * Methods used to fetch LPAR data when running on an iSeries platform.
  */
-static int iseries_lparcfg_data(struct seq_file *m, void *v)
+static int lparcfg_data(struct seq_file *m, void *v)
 {
-       unsigned long pool_id;
+       unsigned long pool_id, lp_index;
        int shared, entitled_capacity, max_entitled_capacity;
        int processors, max_processors;
        unsigned long purr = get_purr();
 
+       seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
+
        shared = (int)(get_lppaca()->shared_proc);
+       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]),
+                  e2a(xItExtVpdPanel.systemSerial[2]),
+                  e2a(xItExtVpdPanel.systemSerial[3]),
+                  e2a(xItExtVpdPanel.systemSerial[4]),
+                  e2a(xItExtVpdPanel.systemSerial[5]));
+
+       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();
+       seq_printf(m, "partition_id=%d\n", (int)lp_index);
 
        seq_printf(m, "system_active_processors=%d\n",
                   (int)HvLpConfig_getSystemPhysicalProcessors());
@@ -117,14 +137,6 @@ static int iseries_lparcfg_data(struct seq_file *m, void *v)
 
        return 0;
 }
-
-#else                          /* CONFIG_PPC_ISERIES */
-
-static int iseries_lparcfg_data(struct seq_file *m, void *v)
-{
-       return 0;
-}
-
 #endif                         /* CONFIG_PPC_ISERIES */
 
 #ifdef CONFIG_PPC_PSERIES
@@ -137,17 +149,17 @@ static void log_plpar_hcall_return(unsigned long rc, char *tag)
        if (rc == 0)            /* success, return */
                return;
 /* check for null tag ? */
-       if (rc == H_HARDWARE)
+       if (rc == H_Hardware)
                printk(KERN_INFO
                       "plpar-hcall (%s) failed with hardware fault\n", tag);
-       else if (rc == H_FUNCTION)
+       else if (rc == H_Function)
                printk(KERN_INFO
                       "plpar-hcall (%s) failed; function not allowed\n", tag);
-       else if (rc == H_AUTHORITY)
+       else if (rc == H_Authority)
                printk(KERN_INFO
-                      "plpar-hcall (%s) failed; not authorized to this"
-                      " function\n", tag);
-       else if (rc == H_PARAMETER)
+                      "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
@@ -197,10 +209,26 @@ static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs)
        unsigned long dummy;
        rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy);
 
-       if (rc != H_AUTHORITY)
+       if (rc != H_Authority)
                log_plpar_hcall_return(rc, "H_PIC");
 }
 
+/* Track sum of all purrs across all processors. This is used to further */
+/* calculate usage values by different applications                       */
+
+static unsigned long get_purr(void)
+{
+       unsigned long sum_purr = 0;
+       int cpu;
+       struct cpu_usage *cu;
+
+       for_each_cpu(cpu) {
+               cu = &per_cpu(cpu_usage_array, cpu);
+               sum_purr += cu->current_tb;
+       }
+       return sum_purr;
+}
+
 #define SPLPAR_CHARACTERISTICS_TOKEN 20
 #define SPLPAR_MAXLENGTH 1026*(sizeof(char))
 
@@ -214,7 +242,7 @@ static void parse_system_parameter_string(struct seq_file *m)
 {
        int call_status;
 
-       unsigned char *local_buffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
+       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__);
@@ -226,8 +254,7 @@ static void parse_system_parameter_string(struct seq_file *m)
        call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
                                NULL,
                                SPLPAR_CHARACTERISTICS_TOKEN,
-                               __pa(rtas_data_buf),
-                               RTAS_DATA_BUF_SIZE);
+                               __pa(rtas_data_buf));
        memcpy(local_buffer, rtas_data_buf, SPLPAR_MAXLENGTH);
        spin_unlock(&rtas_data_buf_lock);
 
@@ -248,7 +275,7 @@ static void parse_system_parameter_string(struct seq_file *m)
 #ifdef LPARCFG_DEBUG
                printk(KERN_INFO "success calling get-system-parameter \n");
 #endif
-               splpar_strlen = local_buffer[0] * 256 + local_buffer[1];
+               splpar_strlen = local_buffer[0] * 16 + local_buffer[1];
                local_buffer += 2;      /* step over strlen value */
 
                memset(workbuffer, 0, SPLPAR_MAXLENGTH);
@@ -305,13 +332,35 @@ static int lparcfg_count_active_processors(void)
        return count;
 }
 
-static int pseries_lparcfg_data(struct seq_file *m, void *v)
+static int lparcfg_data(struct seq_file *m, void *v)
 {
        int partition_potential_processors;
        int partition_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 *lrdrp = NULL;
 
+       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;
+       }
+
+       seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
+
+       seq_printf(m, "serial_number=%s\n", system_id);
+
+       seq_printf(m, "system_type=%s\n", model);
+
+       seq_printf(m, "partition_id=%d\n", (int)lp_index);
+
        rtas_node = find_path_device("/rtas");
        if (rtas_node)
                lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity",
@@ -471,22 +520,22 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
 
        current_weight = (resource >> 5 * 8) & 0xFF;
 
-       pr_debug("%s: current_entitled = %lu, current_weight = %u\n",
+       pr_debug("%s: current_entitled = %lu, current_weight = %lu\n",
                 __FUNCTION__, current_entitled, current_weight);
 
-       pr_debug("%s: new_entitled = %lu, new_weight = %u\n",
+       pr_debug("%s: new_entitled = %lu, new_weight = %lu\n",
                 __FUNCTION__, *new_entitled_ptr, *new_weight_ptr);
 
        retval = plpar_hcall_norets(H_SET_PPP, *new_entitled_ptr,
                                    *new_weight_ptr);
 
-       if (retval == H_SUCCESS || retval == H_CONSTRAINED) {
+       if (retval == H_Success || retval == H_Constrained) {
                retval = count;
-       } else if (retval == H_BUSY) {
+       } else if (retval == H_Busy) {
                retval = -EBUSY;
-       } else if (retval == H_HARDWARE) {
+       } else if (retval == H_Hardware) {
                retval = -EIO;
-       } else if (retval == H_PARAMETER) {
+       } else if (retval == H_Parameter) {
                retval = -EINVAL;
        } else {
                printk(KERN_WARNING "%s: received unknown hv return code %ld",
@@ -499,61 +548,8 @@ out:
        return retval;
 }
 
-#else                          /* CONFIG_PPC_PSERIES */
-
-static int pseries_lparcfg_data(struct seq_file *m, void *v)
-{
-       return 0;
-}
-
-static ssize_t lparcfg_write(struct file *file, const char __user * buf,
-                            size_t count, loff_t * off)
-{
-       return count;
-}
-
 #endif                         /* CONFIG_PPC_PSERIES */
 
-static int lparcfg_data(struct seq_file *m, void *v)
-{
-       struct device_node *rootdn;
-       const char *model = "";
-       const char *system_id = "";
-       const char *tmp;
-       unsigned int *lp_index_ptr, lp_index = 0;
-
-       seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
-
-       rootdn = find_path_device("/");
-       if (rootdn) {
-               tmp = get_property(rootdn, "model", NULL);
-               if (tmp) {
-                       model = tmp;
-                       /* Skip "IBM," - see platforms/iseries/dt.c */
-                       if (firmware_has_feature(FW_FEATURE_ISERIES))
-                               model += 4;
-               }
-               tmp = get_property(rootdn, "system-id", NULL);
-               if (tmp) {
-                       system_id = tmp;
-                       /* Skip "IBM," - see platforms/iseries/dt.c */
-                       if (firmware_has_feature(FW_FEATURE_ISERIES))
-                               system_id += 4;
-               }
-               lp_index_ptr = (unsigned int *)
-                       get_property(rootdn, "ibm,partition-no", NULL);
-               if (lp_index_ptr)
-                       lp_index = *lp_index_ptr;
-       }
-       seq_printf(m, "serial_number=%s\n", system_id);
-       seq_printf(m, "system_type=%s\n", model);
-       seq_printf(m, "partition_id=%d\n", (int)lp_index);
-
-       if (firmware_has_feature(FW_FEATURE_ISERIES))
-               return iseries_lparcfg_data(m, v);
-       return pseries_lparcfg_data(m, v);
-}
-
 static int lparcfg_open(struct inode *inode, struct file *file)
 {
        return single_open(file, lparcfg_data, NULL);
@@ -572,8 +568,7 @@ int __init lparcfg_init(void)
        mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
 
        /* Allow writing if we have FW_FEATURE_SPLPAR */
-       if (firmware_has_feature(FW_FEATURE_SPLPAR) &&
-                       !firmware_has_feature(FW_FEATURE_ISERIES)) {
+       if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
                lparcfg_fops.write = lparcfg_write;
                mode |= S_IWUSR;
        }