* [Patch] 4/4 PCI Hot-plug driver patch for 2.5.74 kernel
@ 2003-07-12 16:15 Dely Sy
0 siblings, 0 replies; only message in thread
From: Dely Sy @ 2003-07-12 16:15 UTC (permalink / raw)
To: linux-kernel
Part 4 of 4 PCI Hot-plug driver patch for 2.5.74 kernel
diff -Nru a/drivers/pci/hotplug/phprm_acpi.c b/drivers/pci/hotplug/phprm_acpi.c
--- a/drivers/pci/hotplug/phprm_acpi.c 1969-12-31 16:00:00.000000000 -0800
+++ b/drivers/pci/hotplug/phprm_acpi.c 2003-07-07 09:32:26.000000000 -0700
@@ -0,0 +1,1724 @@
+/*
+ * PHPRM ACPI: PHP Resource Manager for ACPI platform
+ *
+ * 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, GOOD TITLE or
+ * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to (dely.l.sy@intel.com)
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/acpi.h>
+#include <linux/efi.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#ifdef CONFIG_IA64
+#include <asm/iosapic.h>
+#endif
+#include <acpi/acpi.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/actypes.h>
+#include "cpqphp.h"
+#include "phprm.h"
+
+#define PCI_MAX_BUS 0x100
+#define ACPI_STA_DEVICE_PRESENT 0x01
+
+#define METHOD_NAME__SUN "_SUN"
+#define METHOD_NAME__HPP "_HPP"
+
+#define PHP_RES_BUS 0xA0
+#define PHP_RES_IO 0xA1
+#define PHP_RES_MEM 0xA2
+#define PHP_RES_PMEM 0xA3
+
+#define BRIDGE_TYPE_P2P 0x00
+#define BRIDGE_TYPE_HOST 0x01
+
+/* this should go to drivers/acpi/include/ */
+struct acpi__hpp {
+ u8 cache_line_size;
+ u8 latency_timer;
+ u8 enable_serr;
+ u8 enable_perr;
+};
+
+struct acpi_php_slot {
+ struct acpi_php_slot *next;
+ struct acpi_bridge *bridge;
+ acpi_handle handle;
+ int seg;
+ int bus;
+ int dev;
+ int fun;
+ u32 sun;
+ struct pci_resource *mem_head;
+ struct pci_resource *p_mem_head;
+ struct pci_resource *io_head;
+ struct pci_resource *bus_head;
+ void *slot_ops; /* _STA, _EJx, etc */
+ struct slot *slot;
+}; /* per func */
+
+struct acpi_bridge {
+ struct acpi_bridge *parent;
+ struct acpi_bridge *next;
+ struct acpi_bridge *child;
+ acpi_handle handle;
+ int seg;
+ int pbus; /* pdev->bus->number */
+ int pdevice; /* PCI_SLOT(pdev->devfn) */
+ int pfunction; /* PCI_DEVFN(pdev->devfn) */
+ int bus; /* pdev->subordinate->number */
+ struct acpi__hpp *_hpp;
+ struct acpi_php_slot *slots;
+ struct pci_resource *tmem_head; /* total from crs */
+ struct pci_resource *tp_mem_head; /* total from crs */
+ struct pci_resource *tio_head; /* total from crs */
+ struct pci_resource *tbus_head; /* total from crs */
+ struct pci_resource *mem_head; /* available */
+ struct pci_resource *p_mem_head; /* available */
+ struct pci_resource *io_head; /* available */
+ struct pci_resource *bus_head; /* available */
+ int scanned;
+ int type;
+};
+
+struct acpi_bridge *acpi_bridges_head;
+
+static u8 * acpi_path_name( acpi_handle handle)
+{
+ acpi_status status;
+ static u8 path_name[ACPI_PATHNAME_MAX];
+ struct acpi_buffer ret_buf = { ACPI_PATHNAME_MAX, path_name };
+
+ memset(path_name, 0, sizeof (path_name));
+ status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &ret_buf);
+
+ if (ACPI_FAILURE(status))
+ return NULL;
+ else
+ return path_name;
+}
+
+static void acpi_get__hpp ( struct acpi_bridge *ab);
+
+static int acpi_add_slot_to_php_slots(
+ struct acpi_bridge *ab,
+ int bus_num,
+ acpi_handle handle,
+ u32 adr,
+ u32 sun
+ )
+{
+ struct acpi_php_slot *aps;
+ static long samesun = -1;
+
+ aps = (struct acpi_php_slot *) kmalloc (sizeof(struct acpi_php_slot), GFP_KERNEL);
+ if (!aps) {
+ err ("acpi_phprm: alloc for aps fail\n");
+ return -1;
+ }
+ memset(aps, 0, sizeof(struct acpi_php_slot));
+
+ aps->handle = handle;
+ aps->bus = bus_num;
+ aps->dev = (adr >> 16) & 0xffff;
+ aps->fun = adr & 0xffff;
+ aps->sun = sun;
+
+ aps->next = ab->slots; /* cling to the bridge */
+ aps->bridge = ab;
+ ab->slots = aps;
+
+ ab->scanned += 1;
+ if (!ab->_hpp)
+ acpi_get__hpp(ab);
+
+ if (sun != samesun) {
+ info("acpi_phprm: Slot sun(%x) at s:b:d:f=0x%02x:%02x:%02x:%02x\n", aps->sun, ab->seg, aps->bus, aps->dev, aps->fun);
+ samesun = sun;
+ }
+ return 0;
+}
+
+static void acpi_get__hpp ( struct acpi_bridge *ab)
+{
+ acpi_status status;
+ u8 nui[4];
+ struct acpi_buffer ret_buf = { 0, NULL};
+ union acpi_object *ext_obj, *package;
+ u8 *path_name = acpi_path_name(ab->handle);
+ int i, len = 0;
+
+ /* get _hpp */
+ status = acpi_evaluate_object(ab->handle, METHOD_NAME__HPP, NULL, &ret_buf);
+ switch (status) {
+ case AE_BUFFER_OVERFLOW:
+ ret_buf.pointer = kmalloc (ret_buf.length, GFP_KERNEL);
+ if (!ret_buf.pointer) {
+ err ("acpi_phprm:%s alloc for _HPP fail\n", path_name);
+ return;
+ }
+ status = acpi_evaluate_object(ab->handle, METHOD_NAME__HPP, NULL, &ret_buf);
+ if (ACPI_SUCCESS(status))
+ break;
+ default:
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:%s _HPP fail=0x%x\n", path_name, status);
+ return;
+ }
+ }
+
+ ext_obj = (union acpi_object *) ret_buf.pointer;
+ if (ext_obj->type != ACPI_TYPE_PACKAGE) {
+ err ("acpi_phprm:%s _HPP obj not a package\n", path_name);
+ goto free_and_return;
+ }
+
+ len = ext_obj->package.count;
+ package = (union acpi_object *) ret_buf.pointer;
+ for ( i = 0; (i < len) || (i < 4); i++) {
+ ext_obj = (union acpi_object *) &package->package.elements[i];
+ switch (ext_obj->type) {
+ case ACPI_TYPE_INTEGER:
+ nui[i] = (u8)ext_obj->integer.value;
+ break;
+ default:
+ err ("acpi_phprm:%s _HPP obj type incorrect\n", path_name);
+ goto free_and_return;
+ }
+ }
+
+ ab->_hpp = kmalloc (sizeof (struct acpi__hpp), GFP_KERNEL);
+ memset(ab->_hpp, 0, sizeof(struct acpi__hpp));
+
+ ab->_hpp->cache_line_size = nui[0];
+ ab->_hpp->latency_timer = nui[1];
+ ab->_hpp->enable_serr = nui[2];
+ ab->_hpp->enable_perr = nui[3];
+
+ dbg(" _HPP: cache_line_size=0x%x\n", ab->_hpp->cache_line_size);
+ dbg(" _HPP: latency timer =0x%x\n", ab->_hpp->latency_timer);
+ dbg(" _HPP: enable SERR =0x%x\n", ab->_hpp->enable_serr);
+ dbg(" _HPP: enable PERR =0x%x\n", ab->_hpp->enable_perr);
+
+free_and_return:
+ kfree(ret_buf.pointer);
+}
+
+static acpi_status acpi_evaluate_crs(
+ acpi_handle handle,
+ struct acpi_resource **retbuf
+ )
+{
+ acpi_status status;
+ struct acpi_buffer crsbuf;
+ u8 *path_name = acpi_path_name(handle);
+
+ crsbuf.length = 0;
+ crsbuf.pointer = NULL;
+
+ status = acpi_get_current_resources (handle, &crsbuf);
+
+ switch (status) {
+ case AE_BUFFER_OVERFLOW:
+ break; /* found */
+ case AE_NOT_FOUND:
+ dbg("acpi_phprm:%s _CRS not found\n", path_name);
+ return status;
+ default:
+ err ("acpi_phprm:%s _CRS fail=0x%x\n", path_name, status);
+ return status;
+ }
+
+ crsbuf.pointer = kmalloc (crsbuf.length, GFP_KERNEL);
+ if (!crsbuf.pointer) {
+ err ("acpi_phprm: alloc %ld bytes for %s _CRS fail\n", (ulong)crsbuf.length, path_name);
+ return AE_NO_MEMORY;
+ }
+
+ status = acpi_get_current_resources (handle, &crsbuf);
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm: %s _CRS fail=0x%x.\n", path_name, status);
+ kfree(crsbuf.pointer);
+ return status;
+ }
+
+ *retbuf = crsbuf.pointer;
+
+ return status;
+}
+
+static void free_pci_resource ( struct pci_resource *aprh)
+{
+ struct pci_resource *res, *next;
+
+ for (res = aprh; res; res = next) {
+ next = res->next;
+ kfree(res);
+ }
+}
+
+static void print_pci_resource ( struct pci_resource *aprh)
+{
+ struct pci_resource *res;
+
+ for (res = aprh; res; res = res->next)
+ dbg(" base= 0x%x length= 0x%x\n", res->base, res->length);
+}
+
+static void print_slot_resources( struct acpi_php_slot *aps)
+{
+ if (aps->bus_head) {
+ dbg(" BUS Resources:\n");
+ print_pci_resource (aps->bus_head);
+ }
+
+ if (aps->io_head) {
+ dbg(" IO Resources:\n");
+ print_pci_resource (aps->io_head);
+ }
+
+ if (aps->mem_head) {
+ dbg(" MEM Resources:\n");
+ print_pci_resource (aps->mem_head);
+ }
+
+ if (aps->p_mem_head) {
+ dbg(" PMEM Resources:\n");
+ print_pci_resource (aps->p_mem_head);
+ }
+}
+
+static void print_pci_resources( struct acpi_bridge *ab)
+{
+ if (ab->tbus_head) {
+ dbg(" Total BUS Resources:\n");
+ print_pci_resource (ab->tbus_head);
+ }
+ if (ab->bus_head) {
+ dbg(" BUS Resources:\n");
+ print_pci_resource (ab->bus_head);
+ }
+
+ if (ab->tio_head) {
+ dbg(" Total IO Resources:\n");
+ print_pci_resource (ab->tio_head);
+ }
+ if (ab->io_head) {
+ dbg(" IO Resources:\n");
+ print_pci_resource (ab->io_head);
+ }
+
+ if (ab->tmem_head) {
+ dbg(" Total MEM Resources:\n");
+ print_pci_resource (ab->tmem_head);
+ }
+ if (ab->mem_head) {
+ dbg(" MEM Resources:\n");
+ print_pci_resource (ab->mem_head);
+ }
+
+ if (ab->tp_mem_head) {
+ dbg(" Total PMEM Resources:\n");
+ print_pci_resource (ab->tp_mem_head);
+ }
+ if (ab->p_mem_head) {
+ dbg(" PMEM Resources:\n");
+ print_pci_resource (ab->p_mem_head);
+ }
+ if (ab->_hpp) {
+ dbg(" _HPP: cache_line_size=0x%x\n", ab->_hpp->cache_line_size);
+ dbg(" _HPP: latency timer =0x%x\n", ab->_hpp->latency_timer);
+ dbg(" _HPP: enable SERR =0x%x\n", ab->_hpp->enable_serr);
+ dbg(" _HPP: enable PERR =0x%x\n", ab->_hpp->enable_perr);
+ }
+}
+
+static int phprm_delete_resource(
+ struct pci_resource **aprh,
+ ulong base,
+ ulong size)
+{
+ struct pci_resource *res;
+ struct pci_resource *prevnode;
+ struct pci_resource *split_node;
+ ulong tbase;
+
+ cpqhp_resource_sort_and_combine(aprh);
+
+ for (res = *aprh; res; res = res->next) {
+ if (res->base > base)
+ continue;
+
+ if ((res->base + res->length) < (base + size))
+ continue;
+
+ if (res->base < base) {
+ tbase = base;
+
+ if ((res->length - (tbase - res->base)) < size)
+ continue;
+
+ split_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+ if (!split_node)
+ return -ENOMEM;
+
+ split_node->base = res->base;
+ split_node->length = tbase - res->base;
+ res->base = tbase;
+ res->length -= split_node->length;
+
+ split_node->next = res->next;
+ res->next = split_node;
+ }
+
+ if (res->length >= size) {
+ split_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+ if (!split_node)
+ return -ENOMEM;
+
+ split_node->base = res->base + size;
+ split_node->length = res->length - size;
+ res->length = size;
+
+ split_node->next = res->next;
+ res->next = split_node;
+ }
+
+ if (*aprh == res) {
+ *aprh = res->next;
+ } else {
+ prevnode = *aprh;
+ while (prevnode->next != res)
+ prevnode = prevnode->next;
+
+ prevnode->next = res->next;
+ }
+ res->next = NULL;
+ kfree(res);
+ break;
+ }
+
+ return 0;
+}
+
+static int phprm_delete_resources(
+ struct pci_resource **aprh,
+ struct pci_resource *this
+ )
+{
+ struct pci_resource *res;
+
+ for (res = this; res; res = res->next)
+ phprm_delete_resource(aprh, res->base, res->length);
+
+ return 0;
+}
+
+static int phprm_add_resource(
+ struct pci_resource **aprh,
+ ulong base,
+ ulong size)
+{
+ struct pci_resource *res;
+
+ for (res = *aprh; res; res = res->next) {
+ if ((res->base + res->length) == base) {
+ res->length += size;
+ size = 0L;
+ break;
+ }
+ if (res->next == *aprh)
+ break;
+ }
+
+ if (size) {
+ res = kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+ if (!res) {
+ err ("acpi_phprm: alloc for res fail\n");
+ return -ENOMEM;
+ }
+ memset(res, 0, sizeof (struct pci_resource));
+
+ res->base = base;
+ res->length = size;
+ res->next = *aprh;
+ *aprh = res;
+ }
+
+ return 0;
+}
+
+static int phprm_add_resources(
+ struct pci_resource **aprh,
+ struct pci_resource *this
+ )
+{
+ struct pci_resource *res;
+ int rc = 0;
+
+ for (res = this; res && !rc; res = res->next)
+ rc = phprm_add_resource(aprh, res->base, res->length);
+
+ return rc;
+}
+
+static void acpi_parse_io (
+ struct acpi_bridge *ab,
+ union acpi_resource_data *data
+ )
+{
+ struct acpi_resource_io *dataio;
+ dataio = (struct acpi_resource_io *) data;
+
+ dbg("Io Resource\n");
+ dbg(" %d bit decode\n", ACPI_DECODE_16 == dataio->io_decode ? 16:10);
+ dbg(" Range minimum base: %08X\n", dataio->min_base_address);
+ dbg(" Range maximum base: %08X\n", dataio->max_base_address);
+ dbg(" Alignment: %08X\n", dataio->alignment);
+ dbg(" Range Length: %08X\n", dataio->range_length);
+}
+
+static void acpi_parse_fixed_io (
+ struct acpi_bridge *ab,
+ union acpi_resource_data *data
+ )
+{
+ struct acpi_resource_fixed_io *datafio;
+ datafio = (struct acpi_resource_fixed_io *) data;
+
+ dbg("Fixed Io Resource\n");
+ dbg(" Range base address: %08X", datafio->base_address);
+ dbg(" Range length: %08X", datafio->range_length);
+}
+
+static void acpi_parse_address16_32 (
+ struct acpi_bridge *ab,
+ union acpi_resource_data *data,
+ acpi_resource_type id
+ )
+{
+ /*
+ * acpi_resource_address16 == acpi_resource_address32
+ * acpi_resource_address16 *data16 = (acpi_resource_address16 *) data;
+ */
+ struct acpi_resource_address32 *data32 = (struct acpi_resource_address32 *) data;
+ struct pci_resource **aprh, **tprh;
+
+ if (id == ACPI_RSTYPE_ADDRESS16)
+ dbg("acpi_phprm:16-Bit Address Space Resource\n");
+ else
+ dbg("acpi_phprm:32-Bit Address Space Resource\n");
+
+ switch (data32->resource_type) {
+ case ACPI_MEMORY_RANGE:
+ dbg(" Resource Type: Memory Range\n");
+ aprh = &ab->mem_head;
+ tprh = &ab->tmem_head;
+
+ switch (data32->attribute.memory.cache_attribute) {
+ case ACPI_NON_CACHEABLE_MEMORY:
+ dbg(" Type Specific: Noncacheable memory\n");
+ break;
+ case ACPI_CACHABLE_MEMORY:
+ dbg(" Type Specific: Cacheable memory\n");
+ break;
+ case ACPI_WRITE_COMBINING_MEMORY:
+ dbg(" Type Specific: Write-combining memory\n");
+ break;
+ case ACPI_PREFETCHABLE_MEMORY:
+ aprh = &ab->p_mem_head;
+ dbg(" Type Specific: Prefetchable memory\n");
+ break;
+ default:
+ dbg(" Type Specific: Invalid cache attribute\n");
+ break;
+ }
+
+ dbg(" Type Specific: Read%s\n", ACPI_READ_WRITE_MEMORY == data32->attribute.memory.read_write_attribute ? "/Write":" Only");
+ break;
+
+ case ACPI_IO_RANGE:
+ dbg(" Resource Type: I/O Range\n");
+ aprh = &ab->io_head;
+ tprh = &ab->tio_head;
+
+ switch (data32->attribute.io.range_attribute) {
+ case ACPI_NON_ISA_ONLY_RANGES:
+ dbg(" Type Specific: Non-ISA Io Addresses\n");
+ break;
+ case ACPI_ISA_ONLY_RANGES:
+ dbg(" Type Specific: ISA Io Addresses\n");
+ break;
+ case ACPI_ENTIRE_RANGE:
+ dbg(" Type Specific: ISA and non-ISA Io Addresses\n");
+ break;
+ default:
+ dbg(" Type Specific: Invalid range attribute\n");
+ break;
+ }
+ break;
+
+ case ACPI_BUS_NUMBER_RANGE:
+ dbg(" Resource Type: Bus Number Range(fixed)\n");
+ /* fixup to be compatible with the rest of php driver */
+ data32->min_address_range++;
+ data32->address_length--;
+ aprh = &ab->bus_head;
+ tprh = &ab->tbus_head;
+ break;
+ default:
+ dbg(" Resource Type: Invalid resource type. Exiting.\n");
+ return;
+ }
+
+ dbg(" Resource %s\n", ACPI_CONSUMER == data32->producer_consumer ? "Consumer":"Producer");
+ dbg(" %s decode\n", ACPI_SUB_DECODE == data32->decode ? "Subtractive":"Positive");
+ dbg(" Min address is %s fixed\n", ACPI_ADDRESS_FIXED == data32->min_address_fixed ? "":"not");
+ dbg(" Max address is %s fixed\n", ACPI_ADDRESS_FIXED == data32->max_address_fixed ? "":"not");
+ dbg(" Granularity: %08X\n", data32->granularity);
+ dbg(" Address range min: %08X\n", data32->min_address_range);
+ dbg(" Address range max: %08X\n", data32->max_address_range);
+ dbg(" Address translation offset: %08X\n", data32->address_translation_offset);
+ dbg(" Address Length: %08X\n", data32->address_length);
+
+ if (0xFF != data32->resource_source.index) {
+ dbg(" Resource Source Index: %X\n", data32->resource_source.index);
+ /* dbg(" Resource Source: %s\n", data32->resource_source.string_ptr); */
+ }
+
+ phprm_add_resource(aprh, data32->min_address_range, data32->address_length);
+}
+
+static acpi_status acpi_parse_crs(
+ struct acpi_bridge *ab,
+ struct acpi_resource *crsbuf
+ )
+{
+ acpi_status status = AE_OK;
+ struct acpi_resource *resource = crsbuf;
+ u8 count = 0;
+ u8 done = 0;
+
+ while (!done) {
+ dbg("acpi_phprm: PCI bus 0x%x Resource structure %x.\n", ab->bus, count++);
+ switch (resource->id) {
+ case ACPI_RSTYPE_IRQ:
+ dbg("Irq -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_DMA:
+ dbg("DMA -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_START_DPF:
+ dbg("Start DPF -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_END_DPF:
+ dbg("End DPF -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_IO:
+ acpi_parse_io (ab, &resource->data);
+ break;
+ case ACPI_RSTYPE_FIXED_IO:
+ acpi_parse_fixed_io (ab, &resource->data);
+ break;
+ case ACPI_RSTYPE_VENDOR:
+ dbg("Vendor -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_END_TAG:
+ dbg("End_tag -------- Resource\n");
+ done = 1;
+ break;
+ case ACPI_RSTYPE_MEM24:
+ dbg("Mem24 -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_MEM32:
+ dbg("Mem32 -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_FIXED_MEM32:
+ dbg("Fixed Mem32 -------- Resource\n");
+ break;
+ case ACPI_RSTYPE_ADDRESS16:
+ acpi_parse_address16_32(ab, &resource->data, ACPI_RSTYPE_ADDRESS16);
+ break;
+ case ACPI_RSTYPE_ADDRESS32:
+ acpi_parse_address16_32(ab, &resource->data, ACPI_RSTYPE_ADDRESS32);
+ break;
+ case ACPI_RSTYPE_ADDRESS64:
+ info("Address64 -------- Resource unparsed\n");
+ break;
+ case ACPI_RSTYPE_EXT_IRQ:
+ dbg("Ext Irq -------- Resource\n");
+ break;
+ default:
+ dbg("Invalid -------- resource type 0x%x\n", resource->id);
+ break;
+ }
+
+ resource = (struct acpi_resource *) ((char *)resource + resource->length);
+ }
+
+ return status;
+}
+
+static acpi_status acpi_get_crs( struct acpi_bridge *ab)
+{
+ acpi_status status;
+ struct acpi_resource *crsbuf;
+
+ status = acpi_evaluate_crs(ab->handle, &crsbuf);
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_parse_crs(ab, crsbuf);
+ kfree(crsbuf);
+
+ cpqhp_resource_sort_and_combine(&ab->bus_head);
+ cpqhp_resource_sort_and_combine(&ab->io_head);
+ cpqhp_resource_sort_and_combine(&ab->mem_head);
+ cpqhp_resource_sort_and_combine(&ab->p_mem_head);
+
+ phprm_add_resources (&ab->tbus_head, ab->bus_head);
+ phprm_add_resources (&ab->tio_head, ab->io_head);
+ phprm_add_resources (&ab->tmem_head, ab->mem_head);
+ phprm_add_resources (&ab->tp_mem_head, ab->p_mem_head);
+ }
+
+ return status;
+}
+
+/* find acpi_bridge downword from ab. */
+static struct acpi_bridge *
+find_acpi_bridge_by_bus(
+ struct acpi_bridge *ab,
+ int seg,
+ int bus /* pdev->subordinate->number */
+ )
+{
+ struct acpi_bridge *lab = NULL;
+
+ if (!ab)
+ return NULL;
+
+ if ((ab->bus == bus) && (ab->seg == seg))
+ return ab;
+
+ if (ab->child)
+ lab = find_acpi_bridge_by_bus(ab->child, seg, bus);
+
+ if (!lab)
+ if (ab->next)
+ lab = find_acpi_bridge_by_bus(ab->next, seg, bus);
+
+ return lab;
+}
+
+/*
+ * Build a device tree of ACPI PCI Bridges
+ */
+static void phprm_acpi_register_a_bridge (
+ struct acpi_bridge **head,
+ struct acpi_bridge *pab, /* parent bridge to which child bridge is added */
+ struct acpi_bridge *cab /* child bridge to add */
+ )
+{
+ struct acpi_bridge *lpab;
+ struct acpi_bridge *lcab;
+
+ lpab = find_acpi_bridge_by_bus(*head, pab->seg, pab->bus);
+ if (!lpab) {
+ if (!(pab->type & BRIDGE_TYPE_HOST))
+ warn("PCI parent bridge s:b(%x:%x) not in list.\n", pab->seg, pab->bus);
+ pab->next = *head;
+ *head = pab;
+ lpab = pab;
+ }
+
+ if ((cab->type & BRIDGE_TYPE_HOST) && (pab == cab))
+ return;
+
+ lcab = find_acpi_bridge_by_bus(*head, cab->seg, cab->bus);
+ if (lcab) {
+ if ((pab->bus != lcab->parent->bus) || (lcab->bus != cab->bus))
+ err("PCI child bridge s:b(%x:%x) in list with diff parent.\n", cab->seg, cab->bus);
+ return;
+ } else
+ lcab = cab;
+
+ lcab->parent = lpab;
+ lcab->next = lpab->child;
+ lpab->child = lcab;
+}
+
+
+static acpi_status phprm_acpi_build_php_slots_callback(
+ acpi_handle handle,
+ u32 Level,
+ void *context,
+ void **retval
+ )
+{
+ ulong bus_num;
+ ulong seg_num;
+ ulong sun, adr;
+ ulong padr = 0;
+ acpi_handle phandle = NULL;
+ struct acpi_bridge *pab = (struct acpi_bridge *)context;
+ struct acpi_bridge *lab;
+ acpi_status status;
+ u8 *path_name = acpi_path_name(handle);
+
+ /* get _SUN */
+ status = acpi_evaluate_integer(handle, METHOD_NAME__SUN, NULL, &sun);
+ switch(status) {
+ case AE_NOT_FOUND:
+ return AE_OK;
+ default:
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:%s _SUN fail=0x%x\n", path_name, status);
+ return status;
+ }
+ }
+
+ /* get _ADR. _ADR must exist if _SUN exists */
+ status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &adr);
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:%s _ADR fail=0x%x\n", path_name, status);
+ return status;
+ }
+
+ dbg("acpi_phprm:%s sun=0x%08x adr=0x%08x\n", path_name, (u32)sun, (u32)adr);
+
+ status = acpi_get_parent(handle, &phandle);
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:%s get_parent fail=0x%x\n", path_name, status);
+ return (status);
+ }
+
+ bus_num = pab->bus;
+ seg_num = pab->seg;
+
+ if (pab->bus == bus_num) {
+ lab = pab;
+ } else {
+ dbg("WARN: pab is not parent\n");
+ lab = find_acpi_bridge_by_bus(pab, seg_num, bus_num);
+ if (!lab) {
+ dbg("acpi_phprm: alloc new P2P bridge(%x) for sun(%08x)\n", (u32)bus_num, (u32)sun);
+ lab = (struct acpi_bridge *)kmalloc(sizeof(struct acpi_bridge), GFP_KERNEL);
+ if (!lab) {
+ err("acpi_phprm: alloc for ab fail\n");
+ return AE_NO_MEMORY;
+ }
+ memset(lab, 0, sizeof(struct acpi_bridge));
+
+ lab->handle = phandle;
+ lab->pbus = pab->bus;
+ lab->pdevice = (int)(padr >> 16) & 0xffff;
+ lab->pfunction = (int)(padr & 0xffff);
+ lab->bus = (int)bus_num;
+ lab->scanned = 0;
+ lab->type = BRIDGE_TYPE_P2P;
+
+ phprm_acpi_register_a_bridge (&acpi_bridges_head, pab, lab);
+ } else
+ dbg("acpi_phprm: found P2P bridge(%x) for sun(%08x)\n", (u32)bus_num, (u32)sun);
+ }
+
+ acpi_add_slot_to_php_slots(lab, (int)bus_num, handle, (u32)adr, (u32)sun);
+
+ return (status);
+}
+
+static int phprm_acpi_build_php_slots(
+ struct acpi_bridge *ab,
+ u32 depth
+ )
+{
+ acpi_status status;
+ u8 *path_name = acpi_path_name(ab->handle);
+
+ /* Walk down this pci bridge to get _SUNs if any behind P2P */
+ status = acpi_walk_namespace ( ACPI_TYPE_DEVICE,
+ ab->handle,
+ depth,
+ phprm_acpi_build_php_slots_callback,
+ ab,
+ NULL );
+ if (ACPI_FAILURE(status)) {
+ dbg("acpi_phprm:%s walk for _SUN on pci bridge seg:bus(%x:%x) fail=0x%x\n", path_name, ab->seg, ab->bus, status);
+ return -1;
+ }
+
+ return 0;
+}
+
+static void build_a_bridge(
+ struct acpi_bridge *pab,
+ struct acpi_bridge *ab
+ )
+{
+ u8 *path_name = acpi_path_name(ab->handle);
+
+ phprm_acpi_register_a_bridge (&acpi_bridges_head, pab, ab);
+
+ switch (ab->type) {
+ case BRIDGE_TYPE_HOST:
+ dbg("acpi_phprm: Registered PCI HOST Bridge(%02x) on s:b:d:f(%02x:%02x:%02x:%02x) [%s]\n",
+ ab->bus, ab->seg, ab->pbus, ab->pdevice, ab->pfunction, path_name);
+ break;
+ case BRIDGE_TYPE_P2P:
+ dbg("acpi_phprm: Registered PCI P2P Bridge(%02x-%02x) on s:b:d:f(%02x:%02x:%02x:%02x) [%s]\n",
+ ab->pbus, ab->bus, ab->seg, ab->pbus, ab->pdevice, ab->pfunction, path_name);
+ break;
+ };
+
+ /* build any immediate PHP slots under this pci bridge */
+ phprm_acpi_build_php_slots(ab, 1);
+}
+
+struct acpi_bridge * add_p2p_bridge(
+ acpi_handle handle,
+ struct acpi_bridge *pab, /* parent */
+ ulong adr
+ )
+{
+ struct acpi_bridge *ab;
+ struct pci_dev *pdev;
+ ulong devnum, funcnum;
+ u8 *path_name = acpi_path_name(handle);
+
+ ab = (struct acpi_bridge *) kmalloc (sizeof(struct acpi_bridge), GFP_KERNEL);
+ if (!ab) {
+ err("acpi_phprm: alloc for ab fail\n");
+ return NULL;
+ }
+ memset(ab, 0, sizeof(struct acpi_bridge));
+
+ devnum = (adr >> 16) & 0xffff;
+ funcnum = adr & 0xffff;
+
+ pdev = pci_find_slot(pab->bus, PCI_DEVFN(devnum, funcnum));
+ if (!pdev || !pdev->subordinate) {
+ err("acpi_phprm:%s is not a P2P Bridge\n", path_name);
+ kfree(ab);
+ return NULL;
+ }
+
+ ab->handle = handle;
+ ab->seg = pab->seg;
+ ab->pbus = pab->bus; /* or pdev->bus->number */
+ ab->pdevice = devnum; /* or PCI_SLOT(pdev->devfn) */
+ ab->pfunction = funcnum; /* or PCI_FUNC(pdev->devfn) */
+ ab->bus = pdev->subordinate->number;
+ ab->scanned = 0;
+ ab->type = BRIDGE_TYPE_P2P;
+
+ dbg("acpi_phprm: P2P(%x-%x) on pci=b:d:f(%x:%x:%x) acpi=b:d:f(%x:%x:%x) [%s]\n",
+ pab->bus, ab->bus, pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn),
+ pab->bus, (u32)devnum, (u32)funcnum, path_name);
+
+ build_a_bridge(pab, ab);
+
+ return ab;
+}
+
+static acpi_status scan_p2p_bridge(
+ acpi_handle handle,
+ u32 Level,
+ void *context,
+ void **retval
+ )
+{
+ struct acpi_bridge *pab = (struct acpi_bridge *)context;
+ struct acpi_bridge *ab;
+ acpi_status status;
+ ulong adr = 0;
+ u8 *path_name = acpi_path_name(handle);
+ ulong devnum, funcnum;
+ struct pci_dev *pdev;
+
+ /* get device, function */
+ status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &adr);
+ if (ACPI_FAILURE(status)) {
+ if (status != AE_NOT_FOUND)
+ err("acpi_phprm:%s _ADR fail=0x%x\n", path_name, status);
+ return AE_OK;
+ }
+
+ devnum = (adr >> 16) & 0xffff;
+ funcnum = adr & 0xffff;
+
+ pdev = pci_find_slot(pab->bus, PCI_DEVFN(devnum, funcnum));
+ if (!pdev)
+ return AE_OK;
+ if (!pdev->subordinate)
+ return AE_OK;
+
+ ab = add_p2p_bridge(handle, pab, adr);
+ if (ab) {
+ status = acpi_walk_namespace ( ACPI_TYPE_DEVICE,
+ handle,
+ (u32)1,
+ scan_p2p_bridge,
+ ab,
+ NULL);
+ if (ACPI_FAILURE(status))
+ dbg("acpi_phprm:%s find_p2p fail=0x%x\n", path_name, status);
+ }
+
+ return AE_OK;
+}
+
+struct acpi_bridge * add_host_bridge(
+ acpi_handle handle,
+ ulong segnum,
+ ulong busnum
+ )
+{
+ ulong adr = 0;
+ acpi_status status;
+ struct acpi_bridge *ab;
+ u8 *path_name = acpi_path_name(handle);
+
+ /* get device, function: host br adr is always 0000 though. */
+ status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &adr);
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:%s _ADR fail=0x%x\n", path_name, status);
+ return NULL;
+ }
+ dbg("acpi_phprm: ROOT PCI seg(0x%x)bus(0x%x)dev(0x%x)func(0x%x) [%s]\n", (u32)segnum, (u32)busnum, (u32)(adr >> 16) & 0xffff, (u32)adr & 0xffff, path_name);
+
+ ab = (struct acpi_bridge *) kmalloc (sizeof(struct acpi_bridge), GFP_KERNEL);
+ if (!ab) {
+ err("acpi_phprm: alloc for ab fail\n");
+ return NULL;
+ }
+ memset(ab, 0, sizeof(struct acpi_bridge));
+
+ ab->handle = handle;
+ ab->seg = (int)segnum;
+ ab->bus = ab->pbus = (int)busnum;
+ ab->pdevice = (int)(adr >> 16) & 0xffff;
+ ab->pfunction = (int)(adr & 0xffff);
+ ab->scanned = 0;
+ ab->type = BRIDGE_TYPE_HOST;
+
+ /* get root pci bridge's current resources */
+ status = acpi_get_crs(ab);
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:%s evaluate _CRS fail=0x%x\n", path_name, status);
+ kfree(ab);
+ return NULL;
+ }
+ build_a_bridge(ab, ab);
+
+ return ab;
+}
+
+static acpi_status acpi_scan_from_root_pci_callback (
+ acpi_handle handle,
+ u32 Level,
+ void *context,
+ void **retval
+ )
+{
+ ulong segnum = 0;
+ ulong busnum = 0;
+ acpi_status status;
+ struct acpi_bridge *ab;
+ u8 *path_name = acpi_path_name(handle);
+
+ /* get bus number of this pci root bridge */
+ status = acpi_evaluate_integer(handle, METHOD_NAME__SEG, NULL, &segnum);
+ if (ACPI_FAILURE(status)) {
+ if (status != AE_NOT_FOUND) {
+ err("acpi_phprm:%s evaluate _SEG fail=0x%x\n", path_name, status);
+ return status;
+ }
+ segnum = 0;
+ }
+
+ /* get bus number of this pci root bridge */
+ status = acpi_evaluate_integer(handle, METHOD_NAME__BBN, NULL, &busnum);
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:%s evaluate _BBN fail=0x%x\n", path_name, status);
+ return (status);
+ }
+
+ ab = add_host_bridge(handle, segnum, busnum);
+ if (ab) {
+ status = acpi_walk_namespace ( ACPI_TYPE_DEVICE,
+ handle,
+ 1,
+ scan_p2p_bridge,
+ ab,
+ NULL);
+ if (ACPI_FAILURE(status))
+ dbg("acpi_phprm:%s find_p2p fail=0x%x\n", path_name, status);
+ }
+
+ return AE_OK;
+}
+
+static int phprm_acpi_scan_pci (void)
+{
+ acpi_status status;
+
+ status = acpi_get_devices ( PCI_ROOT_HID_STRING,
+ acpi_scan_from_root_pci_callback,
+ NULL,
+ NULL );
+ if (ACPI_FAILURE(status)) {
+ err("acpi_phprm:get_device PCI ROOT HID fail=0x%x\n", status);
+ return -1;
+ }
+
+ return 0;
+}
+
+int phprm_init(enum php_ctlr_type ctlr_type)
+{
+ int rc;
+
+ if (ctlr_type != PCI)
+ return -ENODEV;
+
+ dbg("PHPRM ACPI init <enter>\n");
+ acpi_bridges_head = NULL;
+
+ /* construct PCI bus:device tree of acpi_handles */
+ rc = phprm_acpi_scan_pci();
+ if (rc)
+ return rc;
+
+ dbg("PHPRM ACPI init %s\n", (rc)?"fail":"success");
+ return rc;
+}
+
+static void free_a_slot(struct acpi_php_slot *aps)
+{
+ dbg(" free a php func of slot(0x%02x) on PCI b:d:f=0x%02x:%02x:%02x\n", aps->sun, aps->bus, aps->dev, aps->fun);
+
+ free_pci_resource (aps->io_head);
+ free_pci_resource (aps->bus_head);
+ free_pci_resource (aps->mem_head);
+ free_pci_resource (aps->p_mem_head);
+
+ kfree(aps);
+}
+
+static void free_a_bridge( struct acpi_bridge *ab)
+{
+ struct acpi_php_slot *aps, *next;
+
+ switch (ab->type) {
+ case BRIDGE_TYPE_HOST:
+ dbg("Free ACPI PCI HOST Bridge(%x) [%s] on s:b:d:f(%x:%x:%x:%x)\n",
+ ab->bus, acpi_path_name(ab->handle), ab->seg, ab->pbus, ab->pdevice, ab->pfunction);
+ break;
+ case BRIDGE_TYPE_P2P:
+ dbg("Free ACPI PCI P2P Bridge(%x-%x) [%s] on s:b:d:f(%x:%x:%x:%x)\n",
+ ab->pbus, ab->bus, acpi_path_name(ab->handle), ab->seg, ab->pbus, ab->pdevice, ab->pfunction);
+ break;
+ };
+
+ /* free slots first */
+ for (aps = ab->slots; aps; aps = next) {
+ next = aps->next;
+ free_a_slot(aps);
+ }
+
+ free_pci_resource (ab->io_head);
+ free_pci_resource (ab->tio_head);
+ free_pci_resource (ab->bus_head);
+ free_pci_resource (ab->tbus_head);
+ free_pci_resource (ab->mem_head);
+ free_pci_resource (ab->tmem_head);
+ free_pci_resource (ab->p_mem_head);
+ free_pci_resource (ab->tp_mem_head);
+
+ kfree(ab);
+}
+
+static void phprm_free_bridges ( struct acpi_bridge *ab)
+{
+ if (ab->child)
+ phprm_free_bridges (ab->child);
+
+ if (ab->next)
+ phprm_free_bridges (ab->next);
+
+ free_a_bridge(ab);
+}
+
+void phprm_cleanup(void)
+{
+ phprm_free_bridges (acpi_bridges_head);
+}
+
+static int get_number_of_slots (
+ struct acpi_bridge *ab,
+ int selfonly
+ )
+{
+ struct acpi_php_slot *aps;
+ int prev_slot = -1;
+ int slot_num = 0;
+
+ for ( aps = ab->slots; aps; aps = aps->next)
+ if (aps->dev != prev_slot) {
+ prev_slot = aps->dev;
+ slot_num++;
+ }
+
+ if (ab->child)
+ slot_num += get_number_of_slots (ab->child, 0);
+
+ if (selfonly)
+ return slot_num;
+
+ if (ab->next)
+ slot_num += get_number_of_slots (ab->next, 0);
+
+ return slot_num;
+}
+
+static int print_acpi_resources (struct acpi_bridge *ab)
+{
+ struct acpi_php_slot *aps;
+ int i;
+
+ switch (ab->type) {
+ case BRIDGE_TYPE_HOST:
+ dbg("PCI HOST Bridge (%x) [%s]\n", ab->bus, acpi_path_name(ab->handle));
+ break;
+ case BRIDGE_TYPE_P2P:
+ dbg("PCI P2P Bridge (%x-%x) [%s]\n", ab->pbus, ab->bus, acpi_path_name(ab->handle));
+ break;
+ };
+
+ print_pci_resources (ab);
+
+ for ( i = -1, aps = ab->slots; aps; aps = aps->next) {
+ if (aps->dev == i)
+ continue;
+ dbg(" Slot sun(%x) s:b:d:f(%02x:%02x:%02x:%02x)\n", aps->sun, aps->seg, aps->bus, aps->dev, aps->fun);
+ print_slot_resources(aps);
+ i = aps->dev;
+ }
+
+ if (ab->child)
+ print_acpi_resources (ab->child);
+
+ if (ab->next)
+ print_acpi_resources (ab->next);
+
+ return 0;
+}
+
+int phprm_print_pirt(void)
+{
+ dbg("PHPRM ACPI Slots\n");
+ print_acpi_resources (acpi_bridges_head);
+
+ return 0;
+}
+
+static struct acpi_php_slot * get_acpi_slot (
+ struct acpi_bridge *ab,
+ u32 sun
+ )
+{
+ struct acpi_php_slot *aps = NULL;
+
+ for ( aps = ab->slots; aps; aps = aps->next)
+ if (aps->sun == sun)
+ return aps;
+
+ if (!aps && ab->child) {
+ aps = (struct acpi_php_slot *)get_acpi_slot (ab->child, sun);
+ if (aps)
+ return aps;
+ }
+
+ if (!aps && ab->next) {
+ aps = (struct acpi_php_slot *)get_acpi_slot (ab->next, sun);
+ if (aps)
+ return aps;
+ }
+
+ return aps;
+
+}
+
+void * phprm_get_slot(struct slot *slot)
+{
+ struct acpi_bridge *ab = acpi_bridges_head;
+ struct acpi_php_slot *aps = get_acpi_slot (ab, slot->number);
+
+ aps->slot = slot;
+
+ dbg("Got acpi slot sun(%x): s:b:d:f(%x:%x:%x:%x)\n", aps->sun, aps->seg, aps->bus, aps->dev, aps->fun);
+
+ return (void *)aps;
+}
+
+static int get_physical_slot_number (
+ struct acpi_bridge *ab,
+ u32 *sun,
+ u8 bus_num,
+ u8 dev_num
+ )
+{
+ struct acpi_php_slot *aps;
+ int rc = 0;
+
+ for ( aps = ab->slots; aps; aps = aps->next) {
+ if (aps->bus == bus_num && aps->dev == dev_num) {
+ *sun = aps->sun;
+ return 0;
+ }
+ }
+
+ if (ab->child) {
+ rc = get_physical_slot_number (ab->child, sun, bus_num, dev_num);
+ if (!rc)
+ return 0;
+ }
+
+ if (ab->next) {
+ rc = get_physical_slot_number (ab->next, sun, bus_num, dev_num);
+ if (!rc)
+ return 0;
+ }
+
+ return -1;
+}
+
+int phprm_get_physical_slot_number(
+ struct controller *ctrl,
+ u32 *sun,
+ u8 bus_num,
+ u8 dev_num
+ )
+{
+ struct acpi_bridge *ab = acpi_bridges_head;
+
+ return get_physical_slot_number (ab, sun, bus_num, dev_num);
+}
+
+int phprm_get_slot_mapping(
+ struct controller *ctrl,
+ u8 bus_num,
+ u8 dev_num,
+ u32 * slot_num
+ )
+{
+ return phprm_get_physical_slot_number(ctrl, slot_num, bus_num, dev_num);
+}
+
+static void phprm_dump_func_res( struct pci_func *fun)
+{
+ struct pci_func *func = fun;
+
+ if (func->bus_head) {
+ dbg(": BUS Resources:\n");
+ print_pci_resource (func->bus_head);
+ }
+ if (func->io_head) {
+ dbg(": IO Resources:\n");
+ print_pci_resource (func->io_head);
+ }
+ if (func->mem_head) {
+ dbg(": MEM Resources:\n");
+ print_pci_resource (func->mem_head);
+ }
+ if (func->p_mem_head) {
+ dbg(": PMEM Resources:\n");
+ print_pci_resource (func->p_mem_head);
+ }
+}
+
+static void phprm_dump_ctrl_res( struct controller *ctlr)
+{
+ struct controller *ctrl = ctlr;
+
+ if (ctrl->bus_head) {
+ dbg(": BUS Resources:\n");
+ print_pci_resource (ctrl->bus_head);
+ }
+ if (ctrl->io_head) {
+ dbg(": IO Resources:\n");
+ print_pci_resource (ctrl->io_head);
+ }
+ if (ctrl->mem_head) {
+ dbg(": MEM Resources:\n");
+ print_pci_resource (ctrl->mem_head);
+ }
+ if (ctrl->p_mem_head) {
+ dbg(": PMEM Resources:\n");
+ print_pci_resource (ctrl->p_mem_head);
+ }
+}
+
+static int phprm_get_used_resources (
+ struct controller *ctrl,
+ struct pci_func *func
+ )
+{
+ return cpqhp_save_used_resources (ctrl, func, !DISABLE_CARD);
+}
+
+static int configure_existing_function(
+ struct controller *ctrl,
+ struct pci_func *func
+ )
+{
+ int rc;
+
+ /* see how much resources the func has used. */
+ rc = phprm_get_used_resources (ctrl, func);
+
+ if (!rc) {
+ /* subtract the resources used by the func from ctrl resources */
+ rc = phprm_delete_resources (&ctrl->bus_head, func->bus_head);
+ rc |= phprm_delete_resources (&ctrl->io_head, func->io_head);
+ rc |= phprm_delete_resources (&ctrl->mem_head, func->mem_head);
+ rc |= phprm_delete_resources (&ctrl->p_mem_head, func->p_mem_head);
+ if (rc)
+ warn("aCEF: cannot del used resources\n");
+ } else
+ err("aCEF: cannot get used resources\n");
+
+ return rc;
+}
+
+static int bind_pci_resources_to_slots ( struct controller *ctrl)
+{
+ struct pci_func *func;
+ int busn = ctrl->bus;
+ int devn, funn;
+ u32 vid;
+
+ for (devn = 0; devn < 32; devn++) {
+ for (funn = 0; funn < 8; funn++) {
+ if (devn == ctrl->device && funn == ctrl->function)
+ continue;
+ /* find out if this entry is for an occupied slot */
+ vid = 0xFFFFFFFF;
+ pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(devn, funn), PCI_VENDOR_ID, &vid);
+
+ if (vid != 0xFFFFFFFF) {
+ func = cpqhp_slot_find(busn, devn, funn);
+ if (!func)
+ continue;
+ configure_existing_function(ctrl, func);
+ dbg("aCCF:existing PCI 0x%x Func ResourceDump\n", ctrl->bus);
+ phprm_dump_func_res(func);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int bind_pci_resources(
+ struct controller *ctrl,
+ struct acpi_bridge *ab
+ )
+{
+ int status = 0;
+
+ if (ab->bus_head) {
+ dbg("bapr: BUS Resources add on PCI 0x%x\n", ab->bus);
+ status = phprm_add_resources (&ctrl->bus_head, ab->bus_head);
+ if (phprm_delete_resources (&ab->bus_head, ctrl->bus_head))
+ warn("bapr: cannot sub BUS Resource on PCI 0x%x\n", ab->bus);
+ if (status) {
+ err("bapr: BUS Resource add on PCI 0x%x: fail=0x%x\n", ab->bus, status);
+ return status;
+ }
+ } else
+ info("bapr: No BUS Resource on PCI 0x%x.\n", ab->bus);
+
+ if (ab->io_head) {
+ dbg("bapr: IO Resources add on PCI 0x%x\n", ab->bus);
+ status = phprm_add_resources (&ctrl->io_head, ab->io_head);
+ if (phprm_delete_resources (&ab->io_head, ctrl->io_head))
+ warn("bapr: cannot sub IO Resource on PCI 0x%x\n", ab->bus);
+ if (status) {
+ err("bapr: IO Resource add on PCI 0x%x: fail=0x%x\n", ab->bus, status);
+ return status;
+ }
+ } else
+ info("bapr: No IO Resource on PCI 0x%x.\n", ab->bus);
+
+ if (ab->mem_head) {
+ dbg("bapr: MEM Resources add on PCI 0x%x\n", ab->bus);
+ status = phprm_add_resources (&ctrl->mem_head, ab->mem_head);
+ if (phprm_delete_resources (&ab->mem_head, ctrl->mem_head))
+ warn("bapr: cannot sub MEM Resource on PCI 0x%x\n", ab->bus);
+ if (status) {
+ err("bapr: MEM Resource add on PCI 0x%x: fail=0x%x\n", ab->bus, status);
+ return status;
+ }
+ } else
+ info("bapr: No MEM Resource on PCI 0x%x.\n", ab->bus);
+
+ if (ab->p_mem_head) {
+ dbg("bapr: PMEM Resources add on PCI 0x%x\n", ab->bus);
+ status = phprm_add_resources (&ctrl->p_mem_head, ab->p_mem_head);
+ if (phprm_delete_resources (&ab->p_mem_head, ctrl->p_mem_head))
+ warn("bapr: cannot sub PMEM Resource on PCI 0x%x\n", ab->bus);
+ if (status) {
+ err("bapr: PMEM Resource add on PCI 0x%x: fail=0x%x\n", ab->bus, status);
+ return status;
+ }
+ } else
+ info("bapr: No PMEM Resource on PCI 0x%x.\n", ab->bus);
+
+ return status;
+}
+
+static int no_pci_resources( struct acpi_bridge *ab)
+{
+ return !(ab->p_mem_head || ab->mem_head || ab->io_head || ab->bus_head);
+}
+
+static int find_pci_bridge_resources (
+ struct controller *ctrl,
+ struct acpi_bridge *ab
+ )
+{
+ int rc = 0;
+ struct pci_func func;
+
+ memset(&func, 0, sizeof(struct pci_func));
+
+ func.bus = ab->pbus;
+ func.device = ab->pdevice;
+ func.function = ab->pfunction;
+ func.is_a_board = 1;
+
+ /* Get used resources for this PCI bridge */
+ rc = cpqhp_save_used_resources (ctrl, &func, !DISABLE_CARD);
+
+ ab->io_head = func.io_head;
+ ab->mem_head = func.mem_head;
+ ab->p_mem_head = func.p_mem_head;
+ ab->bus_head = func.bus_head;
+ if (ab->bus_head)
+ phprm_delete_resource(&ab->bus_head, ctrl->bus, 1);
+
+ return rc;
+}
+
+static int get_pci_resources_from_bridge(
+ struct controller *ctrl,
+ struct acpi_bridge *ab
+ )
+{
+ int rc = 0;
+
+ dbg("grfb: Get Resources for PCI 0x%x from actual PCI bridge 0x%x.\n", ctrl->bus, ab->bus);
+
+ rc = find_pci_bridge_resources (ctrl, ab);
+
+ cpqhp_resource_sort_and_combine(&ab->bus_head);
+ cpqhp_resource_sort_and_combine(&ab->io_head);
+ cpqhp_resource_sort_and_combine(&ab->mem_head);
+ cpqhp_resource_sort_and_combine(&ab->p_mem_head);
+
+ phprm_add_resources (&ab->tbus_head, ab->bus_head);
+ phprm_add_resources (&ab->tio_head, ab->io_head);
+ phprm_add_resources (&ab->tmem_head, ab->mem_head);
+ phprm_add_resources (&ab->tp_mem_head, ab->p_mem_head);
+
+ return rc;
+}
+
+static int get_pci_resources(
+ struct controller *ctrl,
+ struct acpi_bridge *ab
+ )
+{
+ int rc = 0;
+
+ if (no_pci_resources(ab)) {
+ dbg("spbr:PCI 0x%x has no resources. Get parent resources.\n", ab->bus);
+ rc = get_pci_resources_from_bridge(ctrl, ab);
+ }
+
+ return rc;
+}
+
+/*
+ * Get resources for this ctrl.
+ * 1. get total resources from ACPI _CRS or bridge (this ctrl)
+ * 2. find used resources of existing adapters
+ * 3. subtract used resources from total resources
+ */
+int phprm_find_available_resources( struct controller *ctrl)
+{
+ int rc = 0;
+ struct acpi_bridge *ab;
+
+ ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->bus);
+ if (!ab) {
+ err("pfar:cannot locate acpi bridge of PCI 0x%x.\n", ctrl->bus);
+ return -1;
+ }
+ if (no_pci_resources(ab)) {
+ rc = get_pci_resources(ctrl, ab);
+ if (rc) {
+ err("pfar:cannot get pci resources of PCI 0x%x.\n", ctrl->bus);
+ return -1;
+ }
+ }
+
+ rc = bind_pci_resources(ctrl, ab);
+ dbg("pfar:pre-Bind PCI 0x%x Ctrl Resource Dump\n", ctrl->bus);
+ phprm_dump_ctrl_res(ctrl);
+
+ bind_pci_resources_to_slots (ctrl);
+
+ dbg("pfar:post-Bind PCI 0x%x Ctrl Resource Dump\n", ctrl->bus);
+ phprm_dump_ctrl_res(ctrl);
+
+ return rc;
+}
+
+void phprm_get_slot_capability(
+ struct controller *ctrl,
+ struct slot *new_slot
+ )
+{
+ /* tbd; */
+}
+
+int phprm_set_hpp(
+ struct controller *ctrl,
+ struct pci_func *func,
+ u8 card_type
+ )
+{
+ struct acpi_bridge *ab;
+ struct pci_bus lpci_bus, *pci_bus;
+ int rc = 0;
+ unsigned int devfn;
+ u8 cls= 0x08; /* default cache line size */
+ u8 lt = 0x40; /* default latency timer */
+ u8 ep = 0;
+ u8 es = 0;
+
+ memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
+ pci_bus = &lpci_bus;
+ pci_bus->number = func->bus;
+ devfn = PCI_DEVFN(func->device, func->function);
+
+ ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->bus);
+
+ if (ab) {
+ if (ab->_hpp) {
+ lt = (u8)ab->_hpp->latency_timer;
+ cls = (u8)ab->_hpp->cache_line_size;
+ ep = (u8)ab->_hpp->enable_perr;
+ es = (u8)ab->_hpp->enable_serr;
+ } else
+ dbg("_hpp: no _hpp for B/D/F=%#x/%#x/%#x. use default value\n", func->bus, func->device, func->function);
+ } else
+ dbg("_hpp: no acpi bridge for B/D/F = %#x/%#x/%#x. use default value\n", func->bus, func->device, func->function);
+
+
+ if (card_type == PCI_HEADER_TYPE_BRIDGE) {
+ /* set subordinate Latency Timer */
+ rc |= pci_bus_write_config_byte(pci_bus, devfn, PCI_SEC_LATENCY_TIMER, lt);
+ }
+
+ /* set base Latency Timer */
+ rc |= pci_bus_write_config_byte(pci_bus, devfn, PCI_LATENCY_TIMER, lt);
+ dbg(" set latency timer =0x%02x: %x\n", lt, rc);
+
+ rc |= pci_bus_write_config_byte(pci_bus, devfn, PCI_CACHE_LINE_SIZE, cls);
+ dbg(" set cache_line_size=0x%02x: %x\n", cls, rc);
+
+ return rc;
+}
+
+void phprm_enable_card(
+ struct controller *ctrl,
+ struct pci_func *func,
+ u8 card_type)
+{
+ u16 command, cmd, bcommand, bcmd;
+ struct pci_bus lpci_bus, *pci_bus;
+ struct acpi_bridge *ab;
+ unsigned int devfn;
+ int rc;
+
+ memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
+ pci_bus = &lpci_bus;
+ pci_bus->number = func->bus;
+ devfn = PCI_DEVFN(func->device, func->function);
+
+ rc = pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &command);
+
+ if (card_type == PCI_HEADER_TYPE_BRIDGE) {
+ rc = pci_bus_read_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, &bcommand);
+ }
+
+ cmd = command = command | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE
+ | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
+ bcmd = bcommand = bcommand | PCI_BRIDGE_CTL_NO_ISA;
+
+ ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->bus);
+ if (ab) {
+ if (ab->_hpp) {
+ if (ab->_hpp->enable_perr) {
+ command |= PCI_COMMAND_PARITY;
+ bcommand |= PCI_BRIDGE_CTL_PARITY;
+ } else {
+ command &= ~PCI_COMMAND_PARITY;
+ bcommand &= ~PCI_BRIDGE_CTL_PARITY;
+ }
+ if (ab->_hpp->enable_serr) {
+ command |= PCI_COMMAND_SERR;
+ bcommand |= PCI_BRIDGE_CTL_SERR;
+ } else {
+ command &= ~PCI_COMMAND_SERR;
+ bcommand &= ~PCI_BRIDGE_CTL_SERR;
+ }
+ } else
+ dbg("no _hpp for B/D/F = %#x/%#x/%#x.\n", func->bus, func->device, func->function);
+ } else
+ dbg("no acpi bridge for B/D/F = %#x/%#x/%#x.\n", func->bus, func->device, func->function);
+
+ if (command != cmd) {
+ rc = pci_bus_write_config_word(pci_bus, devfn, PCI_COMMAND, command);
+ }
+ if ((card_type == PCI_HEADER_TYPE_BRIDGE) && (bcommand != bcmd)) {
+ rc = pci_bus_write_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, bcommand);
+ }
+}
+
+
+
+
diff -Nru a/drivers/pci/hotplug/phprm.h b/drivers/pci/hotplug/phprm.h
--- a/drivers/pci/hotplug/phprm.h 1969-12-31 16:00:00.000000000 -0800
+++ b/drivers/pci/hotplug/phprm.h 2003-07-07 09:32:26.000000000 -0700
@@ -0,0 +1,50 @@
+/*
+ * PHPRM : PHP Resource Manager for ACPI/non-ACPI platform
+ *
+ * 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, GOOD TITLE or
+ * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to (dely.l.sy@intel.com)
+ *
+ */
+
+#ifndef _PHPRM_H_
+#define _PHPRM_H_
+
+#ifdef CONFIG_HOTPLUG_PCI_COMPAQ_INTEL_PHPRM_LEGACY
+#include "phprm_legacy.h"
+#endif
+
+int phprm_init(enum php_ctlr_type ct);
+void phprm_cleanup(void);
+int phprm_print_pirt(void);
+struct irq_routing_table *phprm_get_irq_routing_table(void);
+int phprm_get_physical_slot_number( struct controller *ctrl, u32 *sun, u8 bus_num, u8 dev_num);
+void *phprm_get_slot(struct slot *slot);
+int phprm_get_slot_mapping(struct controller *controller, u8 bus_num, u8 dev_num, u32 * slot);
+int phprm_find_available_resources(struct controller *ctrl);
+void phprm_get_slot_capability( struct controller *ctrl, struct slot *new_slot);
+int phprm_set_hpp(struct controller *ctrl, struct pci_func *func, u8 card_type);
+void phprm_enable_card(struct controller *ctrl, struct pci_func *func, u8 card_type);
+
+#ifdef DEBUG
+#define RES_CHECK(this, bits) \
+ { if (((this) & (bits - 1))) \
+ printk("%s:%d ERR: potential res loss!\n", __FUNCTION__, __LINE__); }
+#else
+#define RES_CHECK(this, bits)
+#endif
+
+#endif /* _PHPRM_H_ */
diff -Nru a/drivers/pci/hotplug/phprm_legacy.c b/drivers/pci/hotplug/phprm_legacy.c
--- a/drivers/pci/hotplug/phprm_legacy.c 1969-12-31 16:00:00.000000000 -0800
+++ b/drivers/pci/hotplug/phprm_legacy.c 2003-07-07 09:32:27.000000000 -0700
@@ -0,0 +1,840 @@
+/*
+ * PHPRM LEGACY: PHP Resource Manager for Non-ACPI/Legacy platform
+ *
+ * Copyright (c) 1995,2001 Compaq Computer Corporation
+ * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (c) 2001 IBM
+ *
+ * All rights reserved.
+ *
+ * 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, GOOD TITLE or
+ * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <greg@kroah.com>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+#ifdef CONFIG_IA64
+#include <asm/iosapic.h>
+#endif
+#include "cpqphp.h"
+#include "phprm.h"
+#include "phprm_legacy.h"
+#include "cpqphp_nvram.h"
+
+static int nvram_loaded = 0;
+static void *cpqhp_rom_start;
+static void *smbios_start;
+static void *smbios_table;
+
+void phprm_cleanup()
+{
+ if (nvram_loaded)
+ compaq_nvram_store(cpqhp_rom_start);
+
+ if (cpqhp_rom_start)
+ iounmap(cpqhp_rom_start);
+ if (smbios_start)
+ iounmap(smbios_start);
+}
+
+#ifdef CONFIG_IA64
+void ia64_log_hexdump(unsigned char *p, unsigned long n_ch)
+{
+#ifdef DEBUG
+ int i, j;
+
+ if (!p)
+ return;
+
+ for (i = 0; i < n_ch;) {
+ info("%p ", (void *) p);
+ for (j = 0; (j < 16) && (i < n_ch); i++, j++, p++)
+ info("%02x ", *p);
+ info("\n");
+ }
+#endif
+}
+
+ /*
+ * This is a replacement for a function no longer supported in the IA64
+ * architecture specific subtree. It gets the PCI IRQ Routing Table
+ * and modifies the IA64 format to the IA32 format the rest of the
+ * driver is written to interface with.
+ * ! caller should not free the table !
+ * Return Value:
+ * p_IRT Ptr to the PCI IRQ Routing Table
+ */
+struct irq_routing_table *phprm_get_irq_routing_table(void)
+{
+ static struct irq_routing_table *p_irt_s = 0;
+ u8 *p_mapped_bios, *p;
+ u16 irt_size = 0;
+ int i;
+ union {
+ char array[4];
+ u32 dword;
+ } irt_sig = {
+ array:{
+ '$', 'I', 'R', 'T'}
+ };
+
+ if (p_irt_s)
+ return p_irt_s;
+
+ /* Map BIOS to our memory space. */
+ if (!(p_mapped_bios = (u8 *) ioremap(ROM_PHY_ADDR, ROM_PHY_LEN)))
+ return NULL;
+
+ /* String scan mapped memory for table signature. */
+ for (i = 0, p = p_mapped_bios; i < ROM_PHY_LEN; i += 16, p += 16) {
+ if (*(u32 *) p == irt_sig.dword) {
+ int j = i;
+ u8 *pe;
+ union {
+ char array[4];
+ u32 dword;
+ } ire_sig = {
+ array:{
+ '$', 'I', 'R', 'E'}
+ };
+
+ /*
+ * $IRT header is not reliable, so have to calculate table size
+ * by finding table end ($IRE) and subtracting.
+ */
+ for (j = i, pe = p; j < ROM_PHY_LEN; j += 16, pe += 16) {
+ if (*(u32 *) pe == ire_sig.dword) {
+ irt_size = (u16) (pe - p);
+ break;
+ }
+ }
+ if (j >= ROM_PHY_LEN) {
+ err("%s: can't find end of $IRT\n", __FUNCTION__);
+ goto err_unmap;
+ }
+
+ dbg("Found $IRT at %p length = %d\n", (void *) p, irt_size);
+ ia64_log_hexdump(p, (unsigned long) irt_size);
+
+ /* allocate +16 to reformat IA64 $IRT table to IA32 $PIR table. */
+ if (!(p_irt_s = kmalloc(irt_size + 16, GFP_KERNEL))) {
+ err("%s: can't allocate memory\n", __FUNCTION__);
+ goto err_unmap;
+ }
+ /*
+ * copy IRT to buffer and extend header from 16 to 32 bytes to
+ * approximate IA32 $PIR table. Update table size
+ */
+ memcpy((void *) p_irt_s + 16, p, irt_size);
+ memcpy((void *) p_irt_s, p, 16);
+ memset((void *) p_irt_s + 16, 0, 16); /* clear extra 16 header pad bytes */
+ p_irt_s->size = irt_size + 16;
+
+#ifdef DEBUG
+ /* Calculate the number of entries in the table. This will be the number of slots. */
+ slot_count = (irt_size - 16) / sizeof(struct irq_info);
+ dbg("$IRT contains %d slot entries\n", slot_count);
+#endif
+ break;
+ }
+ }
+
+err_unmap:
+ /* Unmap the BIOS */
+ iounmap(p_mapped_bios);
+
+ if (i >= ROM_PHY_LEN)
+ err("%s: $IRT not found\n", __FUNCTION__);
+
+ return (p_irt_s);
+}
+#else
+struct irq_routing_table *phprm_get_irq_routing_table(void)
+{
+ return (struct irq_routing_table *) pcibios_get_irq_routing_table();
+}
+#endif /* CONFIG_IA64 */
+
+int phprm_print_pirt()
+{
+ struct irq_routing_table *routing_table;
+ int len;
+ int loop;
+
+ u8 tbus, tdevice, tslot;
+ u8 tirq0lnk, tirq1lnk, tirq2lnk, tirq3lnk, trfu;
+ u16 tirq0bmp, tirq1bmp, tirq2bmp, tirq3bmp;
+
+ routing_table = phprm_get_irq_routing_table();
+ if (routing_table == NULL) {
+ err("No BIOS Routing Table??? Not good\n");
+ return -ENOMEM;
+ }
+
+ len = (routing_table->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info);
+ /* Make sure I got at least one entry */
+ if (len == 0) {
+ return -1;
+ }
+
+ dbg(" bus dev func irq0.l irq0.b irq1.l irq1.b irq2.l irq2.b irq3.l irq3.b slot rfu\n");
+
+ for (loop = 0; loop < len; ++loop) {
+ tbus = routing_table->slots[loop].bus;
+ tdevice = routing_table->slots[loop].devfn;
+ tslot = routing_table->slots[loop].slot;
+ trfu = routing_table->slots[loop].rfu;
+ tirq0lnk = routing_table->slots[loop].irq[0].link;
+ tirq0bmp = routing_table->slots[loop].irq[0].bitmap;
+ tirq1lnk = routing_table->slots[loop].irq[1].link;
+ tirq1bmp = routing_table->slots[loop].irq[1].bitmap;
+ tirq2lnk = routing_table->slots[loop].irq[2].link;
+ tirq2bmp = routing_table->slots[loop].irq[2].bitmap;
+ tirq3lnk = routing_table->slots[loop].irq[3].link;
+ tirq3bmp = routing_table->slots[loop].irq[3].bitmap;
+ dbg("0x%3x %3x %4x %6x %6x %6x %6x %6x %6x %6x %6x %4x %3x\n", tbus, tdevice >> 3, tdevice & 0x7, tirq0lnk, tirq0bmp, tirq1lnk, tirq1bmp, tirq2lnk, tirq2bmp, tirq3lnk, tirq3bmp, tslot, trfu);
+ }
+
+ return 0;
+}
+
+/**
+ * find the system Management BIOS Table in the specified region of memory.
+ *
+ * @begin: begin pointer for region to be scanned.
+ * @end: end pointer for region to be scanned.
+ *
+ * Returns pointer to the head of the SMBIOS tables (or NULL)
+ */
+static void *detect_SMBIOS_pointer(void *begin, void *end)
+{
+ void *fp;
+ void *endp;
+ u8 temp1, temp2, temp3, temp4;
+ int status = 0;
+
+ endp = (end - sizeof(u32) + 1);
+
+ for (fp = begin; fp <= endp; fp += 16) {
+ temp1 = readb(fp);
+ temp2 = readb(fp + 1);
+ temp3 = readb(fp + 2);
+ temp4 = readb(fp + 3);
+ if (temp1 == '_' && temp2 == 'S' && temp3 == 'M' && temp4 == '_') {
+ status = 1;
+ break;
+ }
+ }
+
+ if (!status)
+ fp = NULL;
+
+ dbg("Discovered SMBIOS Entry point at %p\n", fp);
+
+ return fp;
+}
+
+/*
+ * Gets the first entry if previous == NULL
+ * Otherwise, returns the next entry
+ * Uses global SMBIOS Table pointer
+ *
+ * @curr: %NULL or pointer to previously returned structure
+ *
+ * returns a pointer to an SMBIOS structure or NULL if none found
+ */
+static void *get_subsequent_smbios_entry(void *smbios_start, void *smbios_table, void *curr)
+{
+ u8 bail = 0;
+ u8 previous_byte = 1;
+ void *p_temp;
+ void *p_max;
+
+ if (!smbios_table || !curr)
+ return (NULL);
+
+ /* set p_max to the end of the table */
+ p_max = smbios_start + readw(smbios_table + ST_LENGTH);
+
+ p_temp = curr;
+ p_temp += readb(curr + SMBIOS_GENERIC_LENGTH);
+
+ while ((p_temp < p_max) && !bail) {
+ /*
+ * Look for the double NULL terminator
+ * The first condition is the previous byte and the second is the curr
+ */
+ if (!previous_byte && !(readb(p_temp)))
+ bail = 1;
+
+ previous_byte = readb(p_temp);
+ p_temp++;
+ }
+
+ if (p_temp < p_max)
+ return p_temp;
+ else
+ return NULL;
+}
+
+/**
+ * @type:SMBIOS structure type to be returned
+ * @previous: %NULL or pointer to previously returned structure
+ *
+ * Gets the first entry of the specified type if previous == NULL
+ * Otherwise, returns the next entry of the given type.
+ * Uses global SMBIOS Table pointer
+ * Uses get_subsequent_smbios_entry
+ *
+ * returns a pointer to an SMBIOS structure or %NULL if none found
+ */
+static void *get_SMBIOS_entry(void *smbios_start, void *smbios_table, u8 type, void *previous)
+{
+ if (!smbios_table)
+ return NULL;
+
+ if (!previous)
+ previous = smbios_start;
+ else {
+ previous = get_subsequent_smbios_entry(smbios_start, smbios_table, previous);
+ }
+
+ while (previous) {
+ if (readb(previous + SMBIOS_GENERIC_TYPE) != type) {
+ previous = get_subsequent_smbios_entry(smbios_start, smbios_table, previous);
+ } else
+ break;
+ }
+
+ return previous;
+}
+
+void * phprm_get_slot(struct slot *slot)
+{
+ return NULL;
+}
+
+int phprm_get_physical_slot_number(struct controller *ctrl, u32 *sun, u8 busnum, u8 devnum)
+{
+ int offset = devnum - ctrl->first_device_num;
+
+ *sun = (u8) (ctrl->first_slot + ctrl->slot_num_inc * offset);
+ return 0;
+}
+
+/*
+ * Description: Attempts to determine a logical slot mapping for a PCI
+ * device. Won't work for more than one PCI-PCI bridge
+ * in a slot.
+ *
+ * Input: u8 bus_num - bus number of PCI device
+ * u8 dev_num - device number of PCI device
+ * u8 *slot - Pointer to u8 where slot number will
+ * be returned
+ *
+ * Output: SUCCESS or FAILURE
+ */
+int phprm_get_slot_mapping(
+ struct controller *ctrl, u8 bus_num, u8 dev_num, u32 * slot)
+{
+ struct irq_routing_table *PCIIRQRoutingInfoLength;
+ struct pci_bus lpci_bus, *pci_bus;
+ u32 work;
+ long len;
+ long loop;
+
+ u8 tbus, tdevice, tslot, bridgeSlot;
+ memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
+ pci_bus = &lpci_bus;
+
+ dbg("%s: %p, %d, %d, %p\n", __FUNCTION__, ctrl, bus_num, dev_num, slot);
+
+ bridgeSlot = 0xFF;
+
+ PCIIRQRoutingInfoLength = phprm_get_irq_routing_table();
+ if (!PCIIRQRoutingInfoLength) {
+ err("NULL irq_routing_table\n");
+ return -1;
+ }
+
+ len = (PCIIRQRoutingInfoLength->size - sizeof(struct irq_routing_table)) / sizeof(struct irq_info);
+ /* Make sure I got at least one entry */
+ if (len == 0) {
+ kfree(PCIIRQRoutingInfoLength);
+ err("zero len irq_routing_table\n");
+ return -1;
+ }
+
+ for (loop = 0; loop < len; ++loop) {
+ tbus = PCIIRQRoutingInfoLength->slots[loop].bus;
+ tdevice = PCIIRQRoutingInfoLength->slots[loop].devfn >> 3;
+ tslot = PCIIRQRoutingInfoLength->slots[loop].slot;
+
+ if ((tbus == bus_num) && (tdevice == dev_num)) {
+ *slot = tslot;
+ kfree(PCIIRQRoutingInfoLength);
+ return 0;
+ } else {
+ /*
+ * Didn't get a match on the target PCI device. Check if the
+ * current IRQ table entry is a PCI-to-PCI bridge device. If so,
+ * and it's secondary bus matches the bus number for the target
+ * device, I need to save the bridge's slot number. If I can't
+ * find an entry for the target device, I will have to assume it's
+ * on the other side of the bridge, and assign it the bridge's slot.
+ */
+ pci_bus->number = tbus;
+ pci_bus_read_config_dword(pci_bus, PCI_DEVFN(tdevice, 0), PCI_REVISION_ID, &work);
+
+ if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) {
+ pci_bus_read_config_dword(pci_bus, PCI_DEVFN(tdevice, 0), PCI_PRIMARY_BUS, &work);
+
+ /* See if bridge's secondary bus matches target bus. */
+ if (((work >> 8) & 0x000000FF) == (long) bus_num) {
+ bridgeSlot = tslot;
+ }
+ }
+ }
+
+ }
+
+ /*
+ * If we got here, we didn't find an entry in the IRQ mapping table
+ * for the target PCI device. If we did determine that the target
+ * device is on the other side of a PCI-to-PCI bridge, return the
+ * slot number for the bridge.
+ */
+ if (bridgeSlot != 0xFF) {
+ warn("irq_routing_table entry for bridge\n");
+ *slot = bridgeSlot;
+ kfree(PCIIRQRoutingInfoLength);
+ return 0;
+ }
+ /* Couldn't find an entry in the routing table for this PCI device */
+ err("no irq_routing_table entry\n");
+ kfree(PCIIRQRoutingInfoLength);
+ return -1;
+}
+
+void phprm_get_slot_capability(struct controller *ctrl, struct slot *new_slot)
+{
+ void *slot_entry = NULL;
+
+ slot_entry = get_SMBIOS_entry(smbios_start, smbios_table, 9, slot_entry);
+#ifdef CONFIG_IA64
+ while (slot_entry) {
+ /* IA64 unaligned access workaround */
+ u8 slot_entry_slot_number = *(u8 *) &(((struct smbios_system_slot *) slot_entry)->slot_number);
+ if (slot_entry_slot_number == new_slot->number)
+ break;
+ slot_entry = get_SMBIOS_entry(smbios_start, smbios_table, 9, (struct smbios_generic *) slot_entry);
+ }
+#else
+ while (slot_entry && (((struct smbios_system_slot *) slot_entry)->slot_number != new_slot->number)) {
+ slot_entry = get_SMBIOS_entry(smbios_start, smbios_table, 9, slot_entry);
+ }
+#endif /* CONFIG_IA64 */
+ new_slot->p_sm_slot = slot_entry;
+}
+
+/* find the Hot Plug Resource Table in the specified region of memory */
+static void *detect_HRT_floating_pointer(void *begin, void *end)
+{
+ void *fp;
+ void *endp;
+ u8 temp1, temp2, temp3, temp4;
+ int status = 0;
+
+ endp = (end - sizeof(struct hrt) + 1);
+
+ for (fp = begin; fp <= endp; fp += 16) {
+ temp1 = readb(fp + SIG0);
+ temp2 = readb(fp + SIG1);
+ temp3 = readb(fp + SIG2);
+ temp4 = readb(fp + SIG3);
+ if (temp1 == '$' && temp2 == 'H' && temp3 == 'R' && temp4 == 'T') {
+ status = 1;
+ break;
+ }
+ }
+
+ if (!status)
+ fp = NULL;
+
+ dbg("Discovered Hotplug Resource Table at %p\n", fp);
+ return fp;
+}
+
+#if link_available
+/*
+ * Links available memory, IO, and IRQ resources for programming
+ * devices which may be added to the system
+ *
+ * Returns 0 if success
+ */
+static int
+link_available_resources (
+ struct controller *ctrl,
+ struct pci_func *func,
+ int index )
+{
+ return cpqhp_save_used_resources (ctrl, func, !DISABLE_CARD);
+}
+#endif
+
+/*
+ * phprm_find_available_resources
+ *
+ * Finds available memory, IO, and IRQ resources for programming
+ * devices which may be added to the system
+ * this function is for hot plug ADD!
+ *
+ * returns 0 if success
+ */
+int phprm_find_available_resources(struct controller *ctrl)
+{
+ u8 populated_slot;
+ u8 bridged_slot;
+ void *one_slot;
+ struct pci_func *func = NULL;
+ int i = 10, index = 0;
+ u32 temp_dword, rc;
+ ulong temp_ulong;
+ struct pci_resource *mem_node;
+ struct pci_resource *p_mem_node;
+ struct pci_resource *io_node;
+ struct pci_resource *bus_node;
+ void *rom_resource_table;
+ struct pci_bus lpci_bus, *pci_bus;
+
+ memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
+ pci_bus = &lpci_bus;
+ rom_resource_table = detect_HRT_floating_pointer(cpqhp_rom_start, cpqhp_rom_start + 0xffff);
+ dbg("rom_resource_table = %p\n", rom_resource_table);
+ if (rom_resource_table == NULL)
+ return -ENODEV;
+
+ rc = compaq_nvram_load(cpqhp_rom_start, ctrl);
+ if (rc)
+ return rc;
+ nvram_loaded = 1;
+
+ one_slot = rom_resource_table + sizeof(struct hrt);
+
+ i = readb(rom_resource_table + NUMBER_OF_ENTRIES);
+ dbg("number_of_entries = %d\n", i);
+
+ if (!readb(one_slot + SECONDARY_BUS))
+ return (1);
+
+ dbg("dev|IO base|length|MEMbase|length|PM base|length|PB SB MB\n");
+
+ while (i && readb(one_slot + SECONDARY_BUS)) {
+ u8 dev_func = readb(one_slot + DEV_FUNC);
+ u8 primary_bus = readb(one_slot + PRIMARY_BUS);
+ u8 secondary_bus = readb(one_slot + SECONDARY_BUS);
+ u8 max_bus = readb(one_slot + MAX_BUS);
+ u16 io_base = readw(one_slot + IO_BASE);
+ u16 io_length = readw(one_slot + IO_LENGTH);
+ u16 mem_base = readw(one_slot + MEM_BASE);
+ u16 mem_length = readw(one_slot + MEM_LENGTH);
+ u16 pre_mem_base = readw(one_slot + PRE_MEM_BASE);
+ u16 pre_mem_length = readw(one_slot + PRE_MEM_LENGTH);
+
+ dbg("%2.2x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x | %4.4x |%2.2x %2.2x %2.2x\n",
+ dev_func, io_base, io_length, mem_base, mem_length, pre_mem_base, pre_mem_length,
+ primary_bus, secondary_bus, max_bus);
+
+ /* If this entry isn't for our controller's bus, ignore it */
+ if (primary_bus != ctrl->bus) {
+ i--;
+ one_slot += sizeof(struct slot_rt);
+ continue;
+ }
+ /* find out if this entry is for an occupied slot */
+ temp_dword = 0xFFFFFFFF;
+ pci_bus->number = primary_bus;
+
+ pci_bus_read_config_dword(pci_bus, dev_func, PCI_VENDOR_ID, &temp_dword);
+
+ dbg("temp_D_word = %x\n", temp_dword);
+
+ if (temp_dword != 0xFFFFFFFF) {
+ index = 0;
+ func = cpqhp_slot_find(primary_bus, dev_func >> 3, 0);
+
+ while (func && (func->function != (dev_func & 0x07))) {
+ dbg("func = %p b:d:f(%x:%x:%x)\n", func, primary_bus, dev_func >> 3, index);
+ func = cpqhp_slot_find(primary_bus, dev_func >> 3, index++);
+ }
+
+ /* If we can't find a match, skip this table entry */
+ if (!func) {
+ i--;
+ one_slot += sizeof(struct slot_rt);
+ continue;
+ }
+ /* this may not work and shouldn't be used */
+ if (secondary_bus != primary_bus)
+ bridged_slot = 1;
+ else
+ bridged_slot = 0;
+
+ populated_slot = 1;
+ } else {
+ populated_slot = 0;
+ bridged_slot = 0;
+ }
+ dbg("slot populated =%s \n", populated_slot?"yes":"no");
+
+ /* If we've got a valid IO base, use it */
+
+ temp_ulong = io_base + io_length;
+
+ if ((io_base) && (temp_ulong <= 0x10000)) {
+ io_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+ if (!io_node)
+ return -ENOMEM;
+
+ io_node->base = (ulong)io_base;
+ io_node->length = (ulong)io_length;
+ dbg("found io_node(base, length) = %x, %x\n", io_node->base, io_node->length);
+
+ if (!populated_slot) {
+ io_node->next = ctrl->io_head;
+ ctrl->io_head = io_node;
+ } else {
+ io_node->next = func->io_head;
+ func->io_head = io_node;
+ }
+ }
+
+ /* If we've got a valid memory base, use it */
+ temp_ulong = mem_base + mem_length;
+ if ((mem_base) && (temp_ulong <= 0x10000)) {
+ mem_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+ if (!mem_node)
+ return -ENOMEM;
+
+ mem_node->base = (ulong)mem_base << 16;
+ mem_node->length = (ulong)(mem_length << 16);
+ dbg("found mem_node(base, length) = %x, %x\n", mem_node->base, mem_node->length);
+
+ if (!populated_slot) {
+ mem_node->next = ctrl->mem_head;
+ ctrl->mem_head = mem_node;
+ } else {
+ mem_node->next = func->mem_head;
+ func->mem_head = mem_node;
+ }
+ }
+
+ /*
+ * If we've got a valid prefetchable memory base, and
+ * the base + length isn't greater than 0xFFFF
+ */
+ temp_ulong = pre_mem_base + pre_mem_length;
+ if ((pre_mem_base) && (temp_ulong <= 0x10000)) {
+ p_mem_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+ if (!p_mem_node)
+ return -ENOMEM;
+
+ p_mem_node->base = (ulong)pre_mem_base << 16;
+ p_mem_node->length = (ulong)pre_mem_length << 16;
+ dbg("found p_mem_node(base, length) = %x, %x\n", p_mem_node->base, p_mem_node->length);
+
+ if (!populated_slot) {
+ p_mem_node->next = ctrl->p_mem_head;
+ ctrl->p_mem_head = p_mem_node;
+ } else {
+ p_mem_node->next = func->p_mem_head;
+ func->p_mem_head = p_mem_node;
+ }
+ }
+
+ /*
+ * If we've got a valid bus number, use it
+ * The second condition is to ignore bus numbers on
+ * populated slots that don't have PCI-PCI bridges
+ */
+ if (secondary_bus && (secondary_bus != primary_bus)) {
+ bus_node = (struct pci_resource *) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
+ if (!bus_node)
+ return -ENOMEM;
+
+ bus_node->base = (ulong)secondary_bus;
+ bus_node->length = (ulong)(max_bus - secondary_bus + 1);
+ dbg("found bus_node(base, length) = %x, %x\n", bus_node->base, bus_node->length);
+
+ if (!populated_slot) {
+ bus_node->next = ctrl->bus_head;
+ ctrl->bus_head = bus_node;
+ } else {
+ bus_node->next = func->bus_head;
+ func->bus_head = bus_node;
+ }
+ }
+
+#if link_available
+ ++index;
+
+ while (index < 8) {
+ if (((func = cpqhp_slot_find(primary_bus, dev_func >> 3, index)) != NULL) && populated_slot)
+ rc = link_available_resources(ctrl, func, index);
+
+ if (rc)
+ break;
+
+ ++index;
+ }
+#endif
+ i--;
+ one_slot += sizeof(struct slot_rt);
+ }
+
+ dbg("rc = %d\n", rc);
+
+ /* If all of the following fail, we don't have any resources for hot plug add */
+ rc = 1;
+ rc &= cpqhp_resource_sort_and_combine(&(ctrl->mem_head));
+ rc &= cpqhp_resource_sort_and_combine(&(ctrl->p_mem_head));
+ rc &= cpqhp_resource_sort_and_combine(&(ctrl->io_head));
+ rc &= cpqhp_resource_sort_and_combine(&(ctrl->bus_head));
+
+ return (rc);
+}
+
+int phprm_set_hpp(
+ struct controller *ctrl,
+ struct pci_func *func,
+ u8 card_type)
+{
+ u32 rc;
+ u8 temp_byte;
+ struct pci_bus lpci_bus, *pci_bus;
+ unsigned int devfn;
+ memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
+ pci_bus = &lpci_bus;
+ pci_bus->number = func->bus;
+ devfn = PCI_DEVFN(func->device, func->function);
+
+ temp_byte = 0x40; /* hard coded value for LT */
+ if (card_type == PCI_HEADER_TYPE_BRIDGE) {
+ /* set subordinate Latency Timer */
+ rc = pci_bus_write_config_byte(pci_bus, devfn, PCI_SEC_LATENCY_TIMER, temp_byte);
+ if (rc) {
+ dbg("%s: set secondary LT error. b:d:f(%02x:%02x:%02x)\n", __FUNCTION__, func->bus, func->device, func->function);
+ return rc;
+ }
+ }
+
+ /* set base Latency Timer */
+ rc = pci_bus_write_config_byte(pci_bus, devfn, PCI_LATENCY_TIMER, temp_byte);
+ if (rc) {
+ dbg("%s: set LT error. b:d:f(%02x:%02x:%02x)\n", __FUNCTION__, func->bus, func->device, func->function);
+ return rc;
+ }
+
+ /* set Cache Line size */
+ temp_byte = 0x08; /* hard coded value for CLS */
+ rc = pci_bus_write_config_byte(pci_bus, devfn, PCI_CACHE_LINE_SIZE, temp_byte);
+ if (rc) {
+ dbg("%s: set CLS error. b:d:f(%02x:%02x:%02x)\n", __FUNCTION__, func->bus, func->device, func->function);
+ }
+
+ /* set enable_perr */
+ /* set enable_serr */
+
+ return rc;
+}
+
+void phprm_enable_card(
+ struct controller *ctrl,
+ struct pci_func *func,
+ u8 card_type)
+{
+ u16 command, bcommand;
+ struct pci_bus lpci_bus, *pci_bus;
+ unsigned int devfn;
+ int rc;
+
+ memcpy(&lpci_bus, ctrl->pci_bus, sizeof(lpci_bus));
+ pci_bus = &lpci_bus;
+ pci_bus->number = func->bus;
+ devfn = PCI_DEVFN(func->device, func->function);
+
+ rc = pci_bus_read_config_word(pci_bus, devfn, PCI_COMMAND, &command);
+ command |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR
+ | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE
+ | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
+ rc = pci_bus_write_config_word(pci_bus, devfn, PCI_COMMAND, command);
+
+ if (card_type == PCI_HEADER_TYPE_BRIDGE) {
+ rc = pci_bus_read_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, &bcommand);
+ bcommand |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR
+ | PCI_BRIDGE_CTL_NO_ISA;
+ rc = pci_bus_write_config_word(pci_bus, devfn, PCI_BRIDGE_CONTROL, bcommand);
+ }
+}
+
+
+static int legacy_phprm_init_pci(void)
+{
+ cpqhp_rom_start = (u8 *) ioremap(ROM_PHY_ADDR, ROM_PHY_LEN);
+ if (!cpqhp_rom_start) {
+ err("Could not ioremap memory region for ROM\n");
+ return -EIO;
+ }
+
+ compaq_nvram_init(cpqhp_rom_start);
+
+ smbios_table = detect_SMBIOS_pointer(cpqhp_rom_start, (void *) (cpqhp_rom_start + ROM_PHY_LEN));
+ if (!smbios_table) {
+ err("Could not find the SMBIOS pointer in memory\n");
+ return -EIO;
+ }
+
+ smbios_start = ioremap(readl(smbios_table + ST_ADDRESS), readw(smbios_table + ST_LENGTH));
+ if (!smbios_start) {
+ err("Could not ioremap memory region taken from SMBIOS values\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+int phprm_init(enum php_ctlr_type ctrl_type)
+{
+ int retval;
+
+ switch (ctrl_type) {
+ case PCI:
+ retval = legacy_phprm_init_pci();
+ break;
+ default:
+ retval = -ENODEV;
+ break;
+ }
+
+ return retval;
+}
diff -Nru a/drivers/pci/hotplug/phprm_legacy.h b/drivers/pci/hotplug/phprm_legacy.h
--- a/drivers/pci/hotplug/phprm_legacy.h 1969-12-31 16:00:00.000000000 -0800
+++ b/drivers/pci/hotplug/phprm_legacy.h 2003-07-07 09:32:27.000000000 -0700
@@ -0,0 +1,187 @@
+/*
+ * PHPRM ACPI: PHP Resource Manager for Non-ACPI/Legacy platform
+ *
+ * Copyright (c) 1995,2001 Compaq Computer Corporation
+ * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (c) 2001 IBM
+ *
+ * All rights reserved.
+ *
+ * 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, GOOD TITLE or
+ * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <greg@kroah.com>
+ *
+ */
+
+#ifndef _PHPRM_LEGACY_H_
+#define _PHPRM_LEGACY_H_
+
+struct smbios_system_slot {
+ u8 type;
+ u8 length;
+ u16 handle;
+ u8 name_string_num;
+ u8 slot_type;
+ u8 slot_width;
+ u8 slot_current_usage;
+ u8 slot_length;
+ u16 slot_number;
+ u8 properties1;
+ u8 properties2;
+} __attribute__ ((packed));
+
+/* offsets to the smbios generic type based on the above structure layout */
+enum smbios_system_slot_offsets {
+ SMBIOS_SLOT_GENERIC_TYPE = offsetof(struct smbios_system_slot, type),
+ SMBIOS_SLOT_GENERIC_LENGTH = offsetof(struct smbios_system_slot, length),
+ SMBIOS_SLOT_GENERIC_HANDLE = offsetof(struct smbios_system_slot, handle),
+ SMBIOS_SLOT_NAME_STRING_NUM =
+ offsetof(struct smbios_system_slot, name_string_num),
+ SMBIOS_SLOT_TYPE = offsetof(struct smbios_system_slot, slot_type),
+ SMBIOS_SLOT_WIDTH = offsetof(struct smbios_system_slot, slot_width),
+ SMBIOS_SLOT_CURRENT_USAGE =
+ offsetof(struct smbios_system_slot, slot_current_usage),
+ SMBIOS_SLOT_LENGTH = offsetof(struct smbios_system_slot, slot_length),
+ SMBIOS_SLOT_NUMBER = offsetof(struct smbios_system_slot, slot_number),
+ SMBIOS_SLOT_PROPERTIES1 = offsetof(struct smbios_system_slot, properties1),
+ SMBIOS_SLOT_PROPERTIES2 = offsetof(struct smbios_system_slot, properties2),
+};
+
+struct smbios_generic {
+ u8 type;
+ u8 length;
+ u16 handle;
+} __attribute__ ((packed));
+
+/* offsets to the smbios generic type based on the above structure layout */
+enum smbios_generic_offsets {
+ SMBIOS_GENERIC_TYPE = offsetof(struct smbios_generic, type),
+ SMBIOS_GENERIC_LENGTH = offsetof(struct smbios_generic, length),
+ SMBIOS_GENERIC_HANDLE = offsetof(struct smbios_generic, handle),
+};
+
+struct smbios_entry_point {
+ char anchor[4];
+ u8 ep_checksum;
+ u8 ep_length;
+ u8 major_version;
+ u8 minor_version;
+ u16 max_size_entry;
+ u8 ep_rev;
+ u8 reserved[5];
+ char int_anchor[5];
+ u8 int_checksum;
+ u16 st_length;
+ u32 st_address;
+ u16 number_of_entrys;
+ u8 bcd_rev;
+} __attribute__ ((packed));
+
+/* offsets to the smbios entry point based on the above structure layout */
+enum smbios_entry_point_offsets {
+ ANCHOR = offsetof(struct smbios_entry_point, anchor[0]),
+ EP_CHECKSUM = offsetof(struct smbios_entry_point, ep_checksum),
+ EP_LENGTH = offsetof(struct smbios_entry_point, ep_length),
+ MAJOR_VERSION = offsetof(struct smbios_entry_point, major_version),
+ MINOR_VERSION = offsetof(struct smbios_entry_point, minor_version),
+ MAX_SIZE_ENTRY = offsetof(struct smbios_entry_point, max_size_entry),
+ EP_REV = offsetof(struct smbios_entry_point, ep_rev),
+ INT_ANCHOR = offsetof(struct smbios_entry_point, int_anchor[0]),
+ INT_CHECKSUM = offsetof(struct smbios_entry_point, int_checksum),
+ ST_LENGTH = offsetof(struct smbios_entry_point, st_length),
+ ST_ADDRESS = offsetof(struct smbios_entry_point, st_address),
+ NUMBER_OF_ENTRYS = offsetof(struct smbios_entry_point, number_of_entrys),
+ BCD_REV = offsetof(struct smbios_entry_point, bcd_rev),
+};
+
+struct slot_rt {
+ u8 dev_func;
+ u8 primary_bus;
+ u8 secondary_bus;
+ u8 max_bus;
+ u16 io_base;
+ u16 io_length;
+ u16 mem_base;
+ u16 mem_length;
+ u16 pre_mem_base;
+ u16 pre_mem_length;
+} __attribute__ ((packed));
+
+/* offsets to the hotplug slot resource table registers based on the above structure layout */
+enum slot_rt_offsets {
+ DEV_FUNC = offsetof(struct slot_rt, dev_func),
+ PRIMARY_BUS = offsetof(struct slot_rt, primary_bus),
+ SECONDARY_BUS = offsetof(struct slot_rt, secondary_bus),
+ MAX_BUS = offsetof(struct slot_rt, max_bus),
+ IO_BASE = offsetof(struct slot_rt, io_base),
+ IO_LENGTH = offsetof(struct slot_rt, io_length),
+ MEM_BASE = offsetof(struct slot_rt, mem_base),
+ MEM_LENGTH = offsetof(struct slot_rt, mem_length),
+ PRE_MEM_BASE = offsetof(struct slot_rt, pre_mem_base),
+ PRE_MEM_LENGTH = offsetof(struct slot_rt, pre_mem_length),
+};
+
+struct hrt {
+ char sig0;
+ char sig1;
+ char sig2;
+ char sig3;
+ u16 unused_IRQ;
+ u16 PCIIRQ;
+ u8 number_of_entries;
+ u8 revision;
+ u16 reserved1;
+ u32 reserved2;
+} __attribute__ ((packed));
+
+/* offsets to the hotplug resource table registers based on the above structure layout */
+enum hrt_offsets {
+ SIG0 = offsetof(struct hrt, sig0),
+ SIG1 = offsetof(struct hrt, sig1),
+ SIG2 = offsetof(struct hrt, sig2),
+ SIG3 = offsetof(struct hrt, sig3),
+ UNUSED_IRQ = offsetof(struct hrt, unused_IRQ),
+ PCIIRQ = offsetof(struct hrt, PCIIRQ),
+ NUMBER_OF_ENTRIES = offsetof(struct hrt, number_of_entries),
+ REVISION = offsetof(struct hrt, revision),
+ HRT_RESERVED1 = offsetof(struct hrt, reserved1),
+ HRT_RESERVED2 = offsetof(struct hrt, reserved2),
+};
+
+struct irq_info {
+ u8 bus, devfn; /* bus, device and function */
+ struct {
+ u8 link; /* IRQ line ID, chipset dependent, 0=not routed */
+ u16 bitmap; /* Available IRQs */
+ } __attribute__ ((packed)) irq[4];
+ u8 slot; /* slot number, 0=onboard */
+ u8 rfu;
+} __attribute__ ((packed));
+
+struct irq_routing_table {
+ u32 signature; /* PIRQ_SIGNATURE should be here */
+ u16 version; /* PIRQ_VERSION */
+ u16 size; /* Table size in bytes */
+ u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */
+ u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */
+ u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */
+ u32 miniport_data; /* Crap */
+ u8 rfu[11];
+ u8 checksum; /* Modulo 256 checksum must give zero */
+ struct irq_info slots[0];
+} __attribute__ ((packed));
+
+#endif /* _PHPRM_LEGACY_H_ */
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2003-07-12 16:15 [Patch] 4/4 PCI Hot-plug driver patch for 2.5.74 kernel Dely Sy
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