patch-2.4.20 linux-2.4.20/arch/parisc/kernel/inventory.c
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- Lines: 863
- Date:
Thu Nov 28 15:53:10 2002
- Orig file:
linux-2.4.19/arch/parisc/kernel/inventory.c
- Orig date:
Wed Dec 6 11:46:39 2000
diff -urN linux-2.4.19/arch/parisc/kernel/inventory.c linux-2.4.20/arch/parisc/kernel/inventory.c
@@ -1,40 +1,157 @@
-
-/* Copyright (c) 1999 The Puffin Group */
-/* Written by David Kennedy and Alex deVries */
+/*
+ * inventory.c
+ *
+ * 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.
+ *
+ * Copyright (c) 1999 The Puffin Group (David Kennedy and Alex deVries)
+ * Copyright (c) 2001 Matthew Wilcox for Hewlett-Packard
+ *
+ * These are the routines to discover what hardware exists in this box.
+ * This task is complicated by there being 3 different ways of
+ * performing an inventory, depending largely on the age of the box.
+ * The recommended way to do this is to check to see whether the machine
+ * is a `Snake' first, then try System Map, then try PAT. We try System
+ * Map before checking for a Snake -- this probably doesn't cause any
+ * problems, but...
+ */
#include <linux/types.h>
#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/pdc.h>
+#include <asm/processor.h>
+#include <asm/page.h>
/*
** Debug options
-** DEBUG_PAT Dump details which PDC PAT provides about ranges/devices.
+** DEBUG_PAT Dump details which PDC PAT provides about ranges/devices.
*/
#undef DEBUG_PAT
-extern char *parisc_getHWtype(unsigned short hw_type);
+int pdc_type = PDC_TYPE_ILLEGAL;
+
+void __init setup_pdc(void)
+{
+ long status;
+ unsigned int bus_id;
+ struct pdc_system_map_mod_info module_result;
+ struct pdc_module_path module_path;
+ struct pdc_model model;
+#ifdef __LP64__
+ struct pdc_pat_cell_num cell_info;
+#endif
-extern struct hp_device * register_module(void *hpa);
-extern void print_devices(char * buf);
+ /* Determine the pdc "type" used on this machine */
+ printk(KERN_INFO "Determining PDC firmware type: ");
-int pdc_hpa_processor(void *address);
+ status = pdc_system_map_find_mods(&module_result, &module_path, 0);
+ if (status == PDC_OK) {
+ pdc_type = PDC_TYPE_SYSTEM_MAP;
+ printk("System Map.\n");
+ return;
+ }
-#ifndef __LP64__
-static u8 iodc_data[32] __attribute__ ((aligned (64)));
-static struct pdc_model model __attribute__ ((aligned (8)));
+ /*
+ * If the machine doesn't support PDC_SYSTEM_MAP then either it
+ * is a pdc pat box, or it is an older box. All 64 bit capable
+ * machines are either pdc pat boxes or they support PDC_SYSTEM_MAP.
+ */
+
+ /*
+ * TODO: We should test for 64 bit capability and give a
+ * clearer message.
+ */
+
+#ifdef __LP64__
+ status = pdc_pat_cell_get_number(&cell_info);
+ if (status == PDC_OK) {
+ pdc_type = PDC_TYPE_PAT;
+ printk("64 bit PAT.\n");
+ return;
+ }
#endif
-static unsigned long pdc_result[32] __attribute__ ((aligned (8))) = {0,0,0,0};
-static struct pdc_hpa processor_hpa __attribute__ ((aligned (8)));
-static struct pdc_system_map module_result __attribute__ ((aligned (8)));
-static struct pdc_module_path module_path __attribute__ ((aligned (8)));
+
+ /* Check the CPU's bus ID. There's probably a better test. */
+
+ status = pdc_model_info(&model);
+
+ bus_id = (model.hversion >> (4 + 7)) & 0x1f;
+
+ switch (bus_id) {
+ case 0x4: /* 720, 730, 750, 735, 755 */
+ case 0x6: /* 705, 710 */
+ case 0x7: /* 715, 725 */
+ case 0x8: /* 745, 747, 742 */
+ case 0xA: /* 712 and similiar */
+ case 0xC: /* 715/64, at least */
+
+ pdc_type = PDC_TYPE_SNAKE;
+ printk("Snake.\n");
+ return;
+
+ default: /* Everything else */
+
+ printk("Unsupported.\n");
+ panic("If this is a 64-bit machine, please try a 64-bit kernel.\n");
+ }
+}
+
+#define PDC_PAGE_ADJ_SHIFT (PAGE_SHIFT - 12) /* pdc pages are always 4k */
+
+static void __init
+set_pmem_entry(physmem_range_t *pmem_ptr, unsigned long start,
+ unsigned long pages4k)
+{
+ /* Rather than aligning and potentially throwing away
+ * memory, we'll assume that any ranges are already
+ * nicely aligned with any reasonable page size, and
+ * panic if they are not (it's more likely that the
+ * pdc info is bad in this case).
+ */
+
+ if ( ((start & (PAGE_SIZE - 1)) != 0)
+ || ((pages4k & ((1UL << PDC_PAGE_ADJ_SHIFT) - 1)) != 0) ) {
+
+ panic("Memory range doesn't align with page size!\n");
+ }
+
+ pmem_ptr->start_pfn = (start >> PAGE_SHIFT);
+ pmem_ptr->pages = (pages4k >> PDC_PAGE_ADJ_SHIFT);
+}
+
+static void __init pagezero_memconfig(void)
+{
+ unsigned long npages;
+
+ /* Use the 32 bit information from page zero to create a single
+ * entry in the pmem_ranges[] table.
+ *
+ * We currently don't support machines with contiguous memory
+ * >= 4 Gb, who report that memory using 64 bit only fields
+ * on page zero. It's not worth doing until it can be tested,
+ * and it is not clear we can support those machines for other
+ * reasons.
+ *
+ * If that support is done in the future, this is where it
+ * should be done.
+ */
+
+ npages = (PAGE_ALIGN(PAGE0->imm_max_mem) >> PAGE_SHIFT);
+ set_pmem_entry(pmem_ranges,0UL,npages);
+ npmem_ranges = 1;
+}
#ifdef __LP64__
-#include <asm/pdcpat.h>
-int pdc_pat = 0;
+/* All of the PDC PAT specific code is 64-bit only */
/*
** The module object is filled via PDC_PAT_CELL[Return Cell Module].
@@ -47,30 +164,37 @@
**
*/
-static int
-pat_query_module( ulong pcell_loc, ulong mod_index)
+static int __init
+pat_query_module(ulong pcell_loc, ulong mod_index)
{
- extern int num_devices;
- extern struct hp_device devices[];
-
pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
- struct hp_device * dev = &devices[num_devices];
- uint64_t temp; /* 64-bit scratch value */
- long status; /* PDC return value status */
+ pdc_pat_cell_mod_maddr_block_t io_pdc_cell;
+ unsigned long bytecnt;
+ unsigned long temp; /* 64-bit scratch value */
+ long status; /* PDC return value status */
+ struct parisc_device *dev;
/* return cell module (PA or Processor view) */
- status = pdc_pat_cell_module(& pdc_result, pcell_loc, mod_index,
- PA_VIEW, & pa_pdc_cell);
+ status = pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
+ PA_VIEW, &pa_pdc_cell);
- if (status != PDC_RET_OK) {
+ if (status != PDC_OK) {
/* no more cell modules or error */
return status;
}
+ temp = pa_pdc_cell.cba;
+ dev = alloc_pa_dev(PAT_GET_CBA(temp), &pa_pdc_cell.mod_path);
+ if (!dev) {
+ return PDC_NE_MOD;
+ }
+
+ /* alloc_pa_dev sets dev->hpa */
+
/*
- ** save parameters in the hp_device
+ ** save parameters in the parisc_device
** (The idea being the device driver will call pdc_pat_cell_module()
- ** and store the results in it's own data structure.)
+ ** and store the results in its own data structure.)
*/
dev->pcell_loc = pcell_loc;
dev->mod_index = mod_index;
@@ -79,319 +203,410 @@
/* REVISIT: who is the consumer of this? not sure yet... */
dev->mod_info = pa_pdc_cell.mod_info; /* pass to PAT_GET_ENTITY() */
dev->pmod_loc = pa_pdc_cell.mod_location;
- dev->mod_path = pa_pdc_cell.mod_path;
- temp = pa_pdc_cell.cba;
- register_module((void *) PAT_GET_CBA(temp)); /* fills in dev->hpa */
+ register_parisc_device(dev); /* advertise device */
#ifdef DEBUG_PAT
/* dump what we see so far... */
switch (PAT_GET_ENTITY(dev->mod_info)) {
- ulong i;
+ unsigned long i;
case PAT_ENTITY_PROC:
- printk ("PAT_ENTITY_PROC: id_eid 0x%lx\n", pa_pdc_cell.mod[0]);
+ printk(KERN_DEBUG "PAT_ENTITY_PROC: id_eid 0x%lx\n",
+ pa_pdc_cell.mod[0]);
break;
case PAT_ENTITY_MEM:
- printk ("PAT_ENTITY_MEM: amount 0x%lx min_gni_base 0x%lx min_gni_len 0x%lx\n",
- pa_pdc_cell.mod[0],
- pa_pdc_cell.mod[1],
+ printk(KERN_DEBUG
+ "PAT_ENTITY_MEM: amount 0x%lx min_gni_base 0x%lx min_gni_len 0x%lx\n",
+ pa_pdc_cell.mod[0], pa_pdc_cell.mod[1],
pa_pdc_cell.mod[2]);
break;
case PAT_ENTITY_CA:
- printk ("PAT_ENTITY_CA: %ld\n",pcell_loc);
+ printk(KERN_DEBUG "PAT_ENTITY_CA: %ld\n", pcell_loc);
break;
case PAT_ENTITY_PBC:
- printk ("PAT_ENTITY_PBC: ");
+ printk(KERN_DEBUG "PAT_ENTITY_PBC: ");
goto print_ranges;
case PAT_ENTITY_SBA:
- printk ("PAT_ENTITY_SBA: ");
+ printk(KERN_DEBUG "PAT_ENTITY_SBA: ");
goto print_ranges;
case PAT_ENTITY_LBA:
- printk ("PAT_ENTITY_LBA: ");
+ printk(KERN_DEBUG "PAT_ENTITY_LBA: ");
-print_ranges:
- printk ("ranges %ld\n", pa_pdc_cell.mod[1]);
+ print_ranges:
+ pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
+ IO_VIEW, &io_pdc_cell);
+ printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell.mod[1]);
for (i = 0; i < pa_pdc_cell.mod[1]; i++) {
- printk (" %ld: 0x%016lx 0x%016lx 0x%016lx\n", i,
- pa_pdc_cell.mod[2+i*3], /* type */
- pa_pdc_cell.mod[3+i*3], /* start */
- pa_pdc_cell.mod[4+i*3]); /* finish (ie end) */
+ printk(KERN_DEBUG
+ " PA_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n",
+ i, pa_pdc_cell.mod[2 + i * 3], /* type */
+ pa_pdc_cell.mod[3 + i * 3], /* start */
+ pa_pdc_cell.mod[4 + i * 3]); /* finish (ie end) */
+ printk(KERN_DEBUG
+ " IO_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n",
+ i, io_pdc_cell.mod[2 + i * 3], /* type */
+ io_pdc_cell.mod[3 + i * 3], /* start */
+ io_pdc_cell.mod[4 + i * 3]); /* finish (ie end) */
}
- printk("\n");
+ printk(KERN_DEBUG "\n");
break;
}
#endif /* DEBUG_PAT */
- return PDC_RET_OK;
+ return PDC_OK;
}
-static int do_pat_inventory(void)
-{
- ulong mod_index=0;
- int status;
- ulong cell_num;
- ulong pcell_loc;
+/* pat pdc can return information about a variety of different
+ * types of memory (e.g. firmware,i/o, etc) but we only care about
+ * the usable physical ram right now. Since the firmware specific
+ * information is allocated on the stack, we'll be generous, in
+ * case there is a lot of other information we don't care about.
+ */
- pdc_pat = (pdc_pat_cell_get_number(&pdc_result) == PDC_OK);
- if (!pdc_pat)
- {
- return 0;
- }
-
- cell_num = pdc_result[0]; /* Cell number call was made */
-
- /* As of PDC PAT ARS 2.5, ret[1] is NOT architected! */
- pcell_loc = pdc_result[1]; /* Physical location of the cell */
-
-#ifdef DEBUG_PAT
- printk("CELL_GET_NUMBER: 0x%lx 0x%lx\n", cell_num, pcell_loc);
-#endif
-
- status = pdc_pat_cell_num_to_loc(&pdc_result, cell_num);
- if (status == PDC_BAD_OPTION)
- {
- /* Prelude (and it's successors: Lclass, A400/500) only
- ** implement PDC_PAT_CELL sub-options 0 and 2.
- ** "Home cook'n is best anyhow!"
- */
- } else if (PDC_OK == status) {
- /* so far only Halfdome supports this */
- pcell_loc = pdc_result[0];
- } else {
- panic("WTF? CELL_GET_NUMBER give me invalid cell number?");
- }
-
- while (PDC_RET_OK == pat_query_module(pcell_loc, mod_index))
- {
- mod_index++;
- }
-
- return mod_index;
-}
-#endif /* __LP64__ */
+#define PAT_MAX_RANGES (4 * MAX_PHYSMEM_RANGES)
-static int do_newer_workstation_inventory(void)
+static void __init pat_memconfig(void)
{
+ unsigned long actual_len;
+ struct pdc_pat_pd_addr_map_entry mem_table[PAT_MAX_RANGES+1];
+ struct pdc_pat_pd_addr_map_entry *mtbl_ptr;
+ physmem_range_t *pmem_ptr;
long status;
- int i, num = 0;
+ int entries;
+ unsigned long length;
+ int i;
+
+ length = (PAT_MAX_RANGES + 1) * sizeof(struct pdc_pat_pd_addr_map_entry);
+
+ status = pdc_pat_pd_get_addr_map(&actual_len, mem_table, length, 0L);
+
+ if ((status != PDC_OK)
+ || ((actual_len % sizeof(struct pdc_pat_pd_addr_map_entry)) != 0)) {
+
+ /* The above pdc call shouldn't fail, but, just in
+ * case, just use the PAGE0 info.
+ */
+
+ printk("\n\n\n");
+ printk(KERN_WARNING "WARNING! Could not get full memory configuration. "
+ "All memory may not be used!\n\n\n");
+ pagezero_memconfig();
+ return;
+ }
- /* So the idea here is to simply try one SYSTEM_MAP call. If
- that one works, great, otherwise do it another way */
+ entries = actual_len / sizeof(struct pdc_pat_pd_addr_map_entry);
- status = pdc_system_map_find_mods(&module_result,&module_path,0);
+ if (entries > PAT_MAX_RANGES) {
+ printk(KERN_WARNING "This Machine has more memory ranges than we support!\n");
+ printk(KERN_WARNING "Some memory may not be used!\n");
+ }
- if (status == PDC_RET_OK) {
- /* This is for newer non-PDC-PAT boxes */
+ /* Copy information into the firmware independent pmem_ranges
+ * array, skipping types we don't care about. Notice we said
+ * "may" above. We'll use all the entries that were returned.
+ */
+
+ npmem_ranges = 0;
+ mtbl_ptr = mem_table;
+ pmem_ptr = pmem_ranges; /* Global firmware independent table */
+ for (i = 0; i < entries; i++,mtbl_ptr++) {
+ if ( (mtbl_ptr->entry_type != PAT_MEMORY_DESCRIPTOR)
+ || (mtbl_ptr->memory_type != PAT_MEMTYPE_MEMORY)
+ || (mtbl_ptr->pages == 0)
+ || ( (mtbl_ptr->memory_usage != PAT_MEMUSE_GENERAL)
+ && (mtbl_ptr->memory_usage != PAT_MEMUSE_GI)
+ && (mtbl_ptr->memory_usage != PAT_MEMUSE_GNI) ) ) {
- printk("a newer box...\n");
- for(i=0, status=PDC_RET_OK; status != PDC_RET_NE_PROC &&
- status != PDC_RET_NE_MOD ;i++) {
+ continue;
+ }
- status = pdc_system_map_find_mods(&module_result,&module_path,i);
- if (status == PDC_RET_OK) {
- num++;
- register_module(module_result.mod_addr);
- }
+ if (npmem_ranges == MAX_PHYSMEM_RANGES) {
+ printk(KERN_WARNING "This Machine has more memory ranges than we support!\n");
+ printk(KERN_WARNING "Some memory will not be used!\n");
+ break;
}
- }
- return (num > 0);
+ set_pmem_entry(pmem_ptr++,mtbl_ptr->paddr,mtbl_ptr->pages);
+ npmem_ranges++;
+ }
}
-#ifndef __LP64__
-static struct pdc_memory_map r_addr __attribute__ ((aligned (8)));
-
-static int really_do_oldhw_inventory(void)
+static int __init pat_inventory(void)
{
- int i, mod, num = 0;
int status;
- unsigned int hw_type;
- unsigned int func;
+ ulong mod_index = 0;
+ struct pdc_pat_cell_num cell_info;
- /* This is undocumented at the time of writing, but basically
- we're setting up mod_path so that bc[0..4]=0xff, and step
- through mod to get the "Path Structure for GSC Modules". If
- it works, use the returned HPA and determine the hardware type. */
+ /*
+ ** Note: Prelude (and it's successors: Lclass, A400/500) only
+ ** implement PDC_PAT_CELL sub-options 0 and 2.
+ */
+ status = pdc_pat_cell_get_number(&cell_info);
+ if (status != PDC_OK) {
+ return 0;
+ }
- for (i=0;i<6;i++) module_path.bc[i]=0xff;
+#ifdef DEBUG_PAT
+ printk(KERN_DEBUG "CELL_GET_NUMBER: 0x%lx 0x%lx\n", cell_info.cell_num,
+ cell_info.cell_loc);
+#endif
- for (mod=0;mod<16;mod++) {
- char *stype = NULL;
+ while (PDC_OK == pat_query_module(cell_info.cell_loc, mod_index)) {
+ mod_index++;
+ }
- module_path.mod=mod;
- status = pdc_mem_map_hpa(&r_addr, &module_path);
- if (status!=PDC_RET_OK) continue;
-
- status = pdc_iodc_read(&pdc_result,(void *) r_addr.hpa,
- 0, &iodc_data,32 );
- if (status!=PDC_RET_OK) continue;
- hw_type = iodc_data[3]&0x1f;
+ return mod_index;
+}
- switch (hw_type)
- {
- case HPHW_NPROC: /* 0 */
- stype="Processor"; break;
+/* We only look for extended memory ranges on a 64 bit capable box */
+static void __init sprockets_memconfig(void)
+{
+ struct pdc_memory_table_raddr r_addr;
+ struct pdc_memory_table mem_table[MAX_PHYSMEM_RANGES];
+ struct pdc_memory_table *mtbl_ptr;
+ physmem_range_t *pmem_ptr;
+ long status;
+ int entries;
+ int i;
- case HPHW_MEMORY: /* 1 */
- stype="Memory"; break;
+ status = pdc_mem_mem_table(&r_addr,mem_table,
+ (unsigned long)MAX_PHYSMEM_RANGES);
- case HPHW_B_DMA: /* 2 */
- stype="Type B DMA"; break;
+ if (status != PDC_OK) {
- case HPHW_A_DMA: /* 4 */
- stype="Type A DMA"; break;
+ /* The above pdc call only works on boxes with sprockets
+ * firmware (newer B,C,J class). Other non PAT PDC machines
+ * do support more than 3.75 Gb of memory, but we don't
+ * support them yet.
+ */
- case HPHW_A_DIRECT: /* 5 */
- stype="Type A Direct"; break;
+ pagezero_memconfig();
+ return;
+ }
+
+ if (r_addr.entries_total > MAX_PHYSMEM_RANGES) {
+ printk(KERN_WARNING "This Machine has more memory ranges than we support!\n");
+ printk(KERN_WARNING "Some memory will not be used!\n");
+ }
- case HPHW_BCPORT: /* 7 */
- stype="Bus Converter Port"; break;
+ entries = (int)r_addr.entries_returned;
- case HPHW_CONSOLE: /* 9 */
- stype="Console"; break;
+ npmem_ranges = 0;
+ mtbl_ptr = mem_table;
+ pmem_ptr = pmem_ranges; /* Global firmware independent table */
+ for (i = 0; i < entries; i++,mtbl_ptr++) {
+ set_pmem_entry(pmem_ptr++,mtbl_ptr->paddr,mtbl_ptr->pages);
+ npmem_ranges++;
+ }
+}
- case HPHW_FIO: /* 10 - Graphics */
- stype="Foreign I/O (Graphics)"; break;
+#else /* !__LP64__ */
- case HPHW_BA: /* 11 - Bus Adapter */
- stype="Bus Adapter"; break;
+#define pat_inventory() do { } while (0)
+#define pat_memconfig() do { } while (0)
+#define sprockets_memconfig() pagezero_memconfig()
- case HPHW_IOA: /* 12 */
- stype="I/O Adapter"; break;
+#endif /* !__LP64__ */
- case HPHW_BRIDGE: /* 13 */
- stype="Bridge"; break;
- case HPHW_FABRIC: /* 14 */
- stype="Fabric"; break;
+#ifndef CONFIG_PA20
- case HPHW_FAULTY: /* 31 */
- stype="Faulty HW"; break;
+/* Code to support Snake machines (7[2350], 7[235]5, 715/Scorpio) */
- case HPHW_OTHER: /* 42 */
- default:
- printk("Don't know this hw_type: %d\n", hw_type);
- break;
- }
+static struct parisc_device * __init
+legacy_create_device(struct pdc_memory_map *r_addr,
+ struct pdc_module_path *module_path)
+{
+ struct parisc_device *dev;
+ int status = pdc_mem_map_hpa(r_addr, module_path);
+ if (status != PDC_OK)
+ return NULL;
+
+ dev = alloc_pa_dev(r_addr->hpa, &module_path->path);
+ if (dev == NULL)
+ return NULL;
- // This is kluged. But don't want to replicate code for
- // most of the above cases.
- if (stype) {
-#ifdef DBG_PDC_QUERY
- // parisc/kernel/drivers.c
- extern int num_devices;
- extern struct hp_device devices[];
- struct hp_hardware *h;
-#endif
+ register_parisc_device(dev);
+ return dev;
+}
- status = pdc_mem_map_hpa(&r_addr, &module_path);
- if (status==PDC_RET_OK && register_module((void *) r_addr.hpa) != NULL)
- num++;
-
-
- if (hw_type == HPHW_BA) {
- /* Now, we're checking for devices for each
- module. I seem to think that the
- modules in question are Lasi (2), 2nd Lasi (6)
- Wax (5). To do this, set bc[5]=0, and set
- bc[4] to the module, and step through the
- functions. */
-
- for (i=0;i<4;i++) module_path.bc[i]=0xff;
- module_path.bc[4]=mod;
- for (func=0;func<16;func++) {
- module_path.mod = func;
- module_path.bc[5]=0;
- status = pdc_mem_map_hpa(&r_addr, &module_path);
- if (status!=PDC_RET_OK) continue;
- if (register_module((void *) r_addr.hpa) != NULL)
- num++;
- }
+/**
+ * snake_inventory
+ *
+ * Before PDC_SYSTEM_MAP was invented, the PDC_MEM_MAP call was used.
+ * To use it, we initialise the mod_path.bc to 0xff and try all values of
+ * mod to get the HPA for the top-level devices. Bus adapters may have
+ * sub-devices which are discovered by setting bc[5] to 0 and bc[4] to the
+ * module, then trying all possible functions.
+ */
+static void __init snake_inventory(void)
+{
+ int mod;
+ for (mod = 0; mod < 16; mod++) {
+ struct parisc_device *dev;
+ struct pdc_module_path module_path;
+ struct pdc_memory_map r_addr;
+ unsigned int func;
+
+ memset(module_path.path.bc, 0xff, 6);
+ module_path.path.mod = mod;
+ dev = legacy_create_device(&r_addr, &module_path);
+ if ((!dev) || (dev->id.hw_type != HPHW_BA))
+ continue;
+
+ memset(module_path.path.bc, 0xff, 4);
+ module_path.path.bc[4] = mod;
+
+ for (func = 0; func < 16; func++) {
+ module_path.path.bc[5] = 0;
+ module_path.path.mod = func;
+ legacy_create_device(&r_addr, &module_path);
}
- // reset module_path.bc[]
- for (i=0;i<6;i++) module_path.bc[i]=0xff;
+ }
+}
+#else /* CONFIG_PA20 */
+#define snake_inventory() do { } while (0)
+#endif /* CONFIG_PA20 */
+
+/* Common 32/64 bit based code goes here */
+
+/**
+ * add_system_map_addresses - Add additional addresses to the parisc device.
+ * @dev: The parisc device.
+ * @num_addrs: Then number of addresses to add;
+ * @module_instance: The system_map module instance.
+ *
+ * This function adds any additional addresses reported by the system_map
+ * firmware to the parisc device.
+ */
+static void __init
+add_system_map_addresses(struct parisc_device *dev, int num_addrs,
+ int module_instance)
+{
+ int i;
+ long status;
+ struct pdc_system_map_addr_info addr_result;
-#ifdef DBG_PDC_QUERY
-//
-// Let print_devices() dump everything which is registered.
-//
- h = devices[num_devices-1].reference;
+ dev->addr = kmalloc(num_addrs * sizeof(unsigned long), GFP_KERNEL);
+ if(!dev->addr) {
+ printk(KERN_ERR "%s %s(): memory allocation failure\n",
+ __FILE__, __FUNCTION__);
+ return;
+ }
- if (h) stype = h->name;
- printk("Found %s at %d\n", stype, module_path.mod);
-#endif
+ for(i = 1; i <= num_addrs; ++i) {
+ status = pdc_system_map_find_addrs(&addr_result,
+ module_instance, i);
+ if(PDC_OK == status) {
+ dev->addr[dev->num_addrs] = (unsigned long)addr_result.mod_addr;
+ dev->num_addrs++;
+ } else {
+ printk(KERN_WARNING
+ "Bad PDC_FIND_ADDRESS status return (%ld) for index %d\n",
+ status, i);
}
}
- return num;
}
-static int
-do_old_inventory(void)
+/**
+ * do_system_map_inventory - Retrieve firmware devices via SYSTEM_MAP.
+ *
+ * This function attempts to retrieve and register all the devices firmware
+ * knows about via the SYSTEM_MAP PDC call.
+ */
+static void __init system_map_inventory(void)
{
- unsigned int bus_id;
- long status;
- int ok = 0;
-
- printk(" an older box...\n");
+ int i;
+ long status = PDC_OK;
+
+ /*
+ * first stop the usb controller, otherwise the machine
+ * might crash during iommu setup
+ */
+ pdc_suspend_usb();
+
+ for (i = 0; status != PDC_BAD_PROC && status != PDC_NE_MOD; i++) {
+ struct parisc_device *dev;
+ struct pdc_system_map_mod_info module_result;
+ struct pdc_module_path module_path;
+
+ status = pdc_system_map_find_mods(&module_result,
+ &module_path, i);
+ if (status != PDC_OK)
+ continue;
+
+ dev = alloc_pa_dev(module_result.mod_addr, &module_path.path);
+ if (!dev)
+ continue;
+
+ register_parisc_device(dev);
+
+ /* if available, get the additional addresses for a module */
+ if (!module_result.add_addrs)
+ continue;
- /* Here, we're going to check the model, and decide
- if we should even bother trying. */
+ add_system_map_addresses(dev, module_result.add_addrs, i);
+ }
- status = pdc_model_info(&model);
+ walk_central_bus();
+ return;
+}
- bus_id = (model.hversion >> (4+7) ) &0x1f;
+void __init do_memory_inventory(void)
+{
+ switch (pdc_type) {
- /* Here, we're checking the HVERSION of the CPU.
- We're only checking the 0th CPU, since it'll
- be the same on an SMP box. */
+ case PDC_TYPE_PAT:
+ pat_memconfig();
+ break;
- switch (bus_id) {
- case 0x4: /* 720, 730, 750, 735, 755 */
- case 0x6: /* 705, 710 */
- case 0x7: /* 715, 725 */
- case 0x8: /* 745, 747, 742 */
- case 0xA: /* 712 and similiar */
- case 0xC: /* 715/64, at least */
-
- /* Do inventory using MEM_MAP */
- really_do_oldhw_inventory();
- ok = 1;
+ case PDC_TYPE_SYSTEM_MAP:
+ sprockets_memconfig();
break;
- default: /* Everything else */
- printk("This is a very very old machine, with a bus_id of 0x%x.\n",bus_id);
- panic("This will probably never run Linux.\n");
+
+ case PDC_TYPE_SNAKE:
+ pagezero_memconfig();
+ return;
+
+ default:
+ panic("Unknown PDC type!\n");
}
- return ok;
+ if (npmem_ranges == 0 || pmem_ranges[0].start_pfn != 0) {
+ printk(KERN_WARNING "Bad memory configuration returned!\n");
+ printk(KERN_WARNING "Some memory may not be used!\n");
+ pagezero_memconfig();
+ }
}
-#endif /* !__LP64__ */
+void __init do_device_inventory(void)
+{
+ printk(KERN_INFO "Searching for devices...\n");
-void do_inventory(void){
- if((pdc_hpa_processor(&processor_hpa))<0){
- printk(KERN_INFO "Couldn't get the HPA of the processor.\n" );
- }
+ switch (pdc_type) {
+
+ case PDC_TYPE_PAT:
+ pat_inventory();
+ break;
- printk("Searching for devices in PDC firmware... ");
- printk("processor hpa 0x%lx\n", processor_hpa.hpa);
+ case PDC_TYPE_SYSTEM_MAP:
+ system_map_inventory();
+ break;
- if (!(
- do_newer_workstation_inventory()
-#ifdef __LP64__
- || do_pat_inventory()
-#else /* __LP64__ */
- || do_old_inventory()
-#endif /* __LP64__ */
- ))
- {
- panic("I can't get the hardware inventory on this machine");
+ case PDC_TYPE_SNAKE:
+ snake_inventory();
+ break;
+
+ default:
+ panic("Unknown PDC type!\n");
}
- print_devices(NULL);
-}
+ printk(KERN_INFO "Found devices:\n");
+ print_parisc_devices();
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)