1 // SPDX-License-Identifier: GPL-2.0-or-later
14  * keyword - value pairs that specify the configuration of the partition.
29 #include <asm/rtas.h>
50  * Track sum of all purrs across all processors. This is used to further
51  * calculate usage values by different applications
70  * Methods used to fetch LPAR data when running on a pSeries platform.
96  *      XXXX - reserved (0)
97  *          XXXX - reserved (0)
98  *              XXXX - Group Number
99  *                  XXXX - Pool Number.
101  *      XX - reserved. (0)
102  *        XX - bit 0-6 reserved (0).   bit 7 is Capped indicator.
103  *          XX - variable processor Capacity Weight
104  *            XX - Unallocated Variable Processor Capacity Weight.
105  *              XXXX - Active processors in Physical Processor Pool.
106  *                  XXXX  - Processors active on platform.
107  *  R8 (QQQQRRRRRRSSSSSS). if ibm,partition-performance-parameters-level >= 1
108  *	XXXX - Physical platform procs allocated to virtualization.
109  *	    XXXXXX - Max procs capacity % available to the partitions pool.
110  *	          XXXXXX - Entitled procs capacity % available to the
120 	ppp_data->entitlement = retbuf[0];  in h_get_ppp()
121 	ppp_data->unallocated_entitlement = retbuf[1];  in h_get_ppp()
123 	ppp_data->group_num = (retbuf[2] >> 2 * 8) & 0xffff;  in h_get_ppp()
124 	ppp_data->pool_num = retbuf[2] & 0xffff;  in h_get_ppp()
126 	ppp_data->capped = (retbuf[3] >> 6 * 8) & 0x01;  in h_get_ppp()
127 	ppp_data->weight = (retbuf[3] >> 5 * 8) & 0xff;  in h_get_ppp()
128 	ppp_data->unallocated_weight = (retbuf[3] >> 4 * 8) & 0xff;  in h_get_ppp()
129 	ppp_data->active_procs_in_pool = (retbuf[3] >> 2 * 8) & 0xffff;  in h_get_ppp()
130 	ppp_data->active_system_procs = retbuf[3] & 0xffff;  in h_get_ppp()
132 	ppp_data->phys_platform_procs = retbuf[4] >> 6 * 8;  in h_get_ppp()
133 	ppp_data->max_proc_cap_avail = (retbuf[4] >> 3 * 8) & 0xffffff;  in h_get_ppp()
134 	ppp_data->entitled_proc_cap_avail = retbuf[4] & 0xffffff;  in h_get_ppp()
155 	memset(&buf->params, 0, sizeof(buf->params));  in show_gpci_data()
156 	buf->params.counter_request = cpu_to_be32(0xB1);  in show_gpci_data()
157 	buf->params.starting_index = cpu_to_be32(-1);	/* local LPAR */  in show_gpci_data()
158 	buf->params.counter_info_version_in = 0x5;	/* v5+ for score */  in show_gpci_data()
163 			 ret, be32_to_cpu(buf->params.detail_rc));  in show_gpci_data()
166 	affinity_score = buf->bytes[0xB];  in show_gpci_data()
230 	 * valid if the ibm,partition-performance-parameters-level  in parse_ppp_data()
236 				"ibm,partition-performance-parameters-level",  in parse_ppp_data()
267 	if (mpp_data.mapped_mem != -1)  in parse_mpp_data()
280 	if (mpp_data.pool_size != -1)  in parse_mpp_data()
325  * Read the lpar name using the RTAS ibm,get-system-parameter call.
327  * The name read through this call is updated if changes are made by the end
340 			char name[GET_SYS_PARM_BUF_SIZE-2];  in read_rtas_lpar_name()
344 	token = rtas_token("ibm,get-system-parameter");  in read_rtas_lpar_name()
346 		return -EINVAL;  in read_rtas_lpar_name()
350 		return -ENOMEM;  in read_rtas_lpar_name()
358 			memcpy(local_buffer->raw_buffer, rtas_data_buf,  in read_rtas_lpar_name()
359 			       sizeof(local_buffer->raw_buffer));  in read_rtas_lpar_name()
365 		len = min((int) be16_to_cpu(local_buffer->len),  in read_rtas_lpar_name()
366 			  (int) sizeof(local_buffer->name)-1);  in read_rtas_lpar_name()
367 		local_buffer->name[len] = '\0';  in read_rtas_lpar_name()
369 		seq_printf(m, "partition_name=%s\n", local_buffer->name);  in read_rtas_lpar_name()
371 		rc = -ENODATA;  in read_rtas_lpar_name()
380  * The value read in the DT is not updated if the end-user is touching the LPAR
387 	if (of_property_read_string(of_root, "ibm,partition-name", &name))  in read_dt_lpar_name()
388 		return -ENOENT;  in read_dt_lpar_name()
406  * through the get-system-parameter rtas call.  Replace keyword strings as
422 	call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,  in parse_system_parameter_string()
428 	local_buffer[SPLPAR_MAXLENGTH - 1] = '\0';  in parse_system_parameter_string()
433 		       "%s %s Error calling get-system-parameter (0x%x)\n",  in parse_system_parameter_string()
446 		printk(KERN_INFO "success calling get-system-parameter\n");  in parse_system_parameter_string()
481 		local_buffer -= 2;	/* back up over strlen value */  in parse_system_parameter_string()
557 	maxmem += (unsigned long)drmem_info->n_lmbs * drmem_info->lmb_size;  in maxmem_data()
570 	rtas_node = of_find_node_by_path("/rtas");  in pseries_lparcfg_data()
572 		lrdrp = of_get_property(rtas_node, "ibm,lrdr-capacity", NULL);  in pseries_lparcfg_data()
575 		partition_potential_processors = vdso_data->processorCount;  in pseries_lparcfg_data()
584 		/* this call handles the ibm,get-system-parameter contents */  in pseries_lparcfg_data()
652 		return -EINVAL;  in update_ppp()
698 		return -EINVAL;  in update_mpp()
730 		return -EINVAL;  in lparcfg_write()
733 		return -EINVAL;  in lparcfg_write()
736 		return -EFAULT;  in lparcfg_write()
738 	kbuf[count - 1] = '\0';  in lparcfg_write()
741 		return -EINVAL;  in lparcfg_write()
749 			return -EINVAL;  in lparcfg_write()
766 			return -EINVAL;  in lparcfg_write()
773 			return -EINVAL;  in lparcfg_write()
780 			return -EINVAL;  in lparcfg_write()
784 		return -EINVAL;  in lparcfg_write()
789 		retval = -EBUSY;  in lparcfg_write()
791 		retval = -EIO;  in lparcfg_write()
793 		retval = -EINVAL;  in lparcfg_write()
815 		tmp = of_get_property(rootdn, "system-id", NULL);  in lparcfg_data()
818 		lp_index_ptr = of_get_property(rootdn, "ibm,partition-no",  in lparcfg_data()
854 		return -EIO;  in lparcfg_init()