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-rw-r--r--drivers/pci/hotplug/Makefile3
-rw-r--r--drivers/pci/hotplug/acpi_pcihp.c69
-rw-r--r--drivers/pci/hotplug/acpiphp.h2
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c117
-rw-r--r--drivers/pci/hotplug/acpiphp_ibm.c2
-rw-r--r--drivers/pci/hotplug/cpqphp_core.c2
-rw-r--r--drivers/pci/hotplug/cpqphp_ctrl.c6
-rw-r--r--drivers/pci/hotplug/cpqphp_pci.c4
-rw-r--r--drivers/pci/hotplug/fakephp.c1
-rw-r--r--drivers/pci/hotplug/ibmphp_core.c2
-rw-r--r--drivers/pci/hotplug/pciehp.h15
-rw-r--r--drivers/pci/hotplug/pciehp_acpi.c141
-rw-r--r--drivers/pci/hotplug/pciehp_core.c1
-rw-r--r--drivers/pci/hotplug/pciehp_ctrl.c26
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c329
-rw-r--r--drivers/pci/hotplug/rpadlpar_core.c69
16 files changed, 400 insertions, 389 deletions
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index 9bdbe1a6688f..e31fb91652ce 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -55,6 +55,9 @@ pciehp-objs := pciehp_core.o \
pciehp_ctrl.o \
pciehp_pci.o \
pciehp_hpc.o
+ifdef CONFIG_ACPI
+pciehp-objs += pciehp_acpi.o
+endif
shpchp-objs := shpchp_core.o \
shpchp_ctrl.o \
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 2c981cbb0719..1c1141801060 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -500,5 +500,74 @@ int acpi_root_bridge(acpi_handle handle)
}
EXPORT_SYMBOL_GPL(acpi_root_bridge);
+
+static int is_ejectable(acpi_handle handle)
+{
+ acpi_status status;
+ acpi_handle tmp;
+ unsigned long long removable;
+ status = acpi_get_handle(handle, "_ADR", &tmp);
+ if (ACPI_FAILURE(status))
+ return 0;
+ status = acpi_get_handle(handle, "_EJ0", &tmp);
+ if (ACPI_SUCCESS(status))
+ return 1;
+ status = acpi_evaluate_integer(handle, "_RMV", NULL, &removable);
+ if (ACPI_SUCCESS(status) && removable)
+ return 1;
+ return 0;
+}
+
+/**
+ * acpi_pcihp_check_ejectable - check if handle is ejectable ACPI PCI slot
+ * @pbus: the PCI bus of the PCI slot corresponding to 'handle'
+ * @handle: ACPI handle to check
+ *
+ * Return 1 if handle is ejectable PCI slot, 0 otherwise.
+ */
+int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle)
+{
+ acpi_handle bridge_handle, parent_handle;
+
+ if (!(bridge_handle = acpi_pci_get_bridge_handle(pbus)))
+ return 0;
+ if ((ACPI_FAILURE(acpi_get_parent(handle, &parent_handle))))
+ return 0;
+ if (bridge_handle != parent_handle)
+ return 0;
+ return is_ejectable(handle);
+}
+EXPORT_SYMBOL_GPL(acpi_pci_check_ejectable);
+
+static acpi_status
+check_hotplug(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+ int *found = (int *)context;
+ if (is_ejectable(handle)) {
+ *found = 1;
+ return AE_CTRL_TERMINATE;
+ }
+ return AE_OK;
+}
+
+/**
+ * acpi_pci_detect_ejectable - check if the PCI bus has ejectable slots
+ * @pbus - PCI bus to scan
+ *
+ * Returns 1 if the PCI bus has ACPI based ejectable slots, 0 otherwise.
+ */
+int acpi_pci_detect_ejectable(struct pci_bus *pbus)
+{
+ acpi_handle handle;
+ int found = 0;
+
+ if (!(handle = acpi_pci_get_bridge_handle(pbus)))
+ return 0;
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
+ check_hotplug, (void *)&found, NULL);
+ return found;
+}
+EXPORT_SYMBOL_GPL(acpi_pci_detect_ejectable);
+
module_param(debug_acpi, bool, 0644);
MODULE_PARM_DESC(debug_acpi, "Debugging mode for ACPI enabled or not");
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 9bcb6cbd5aa9..4fc168b70095 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -44,7 +44,7 @@
do { \
if (acpiphp_debug) \
printk(KERN_DEBUG "%s: " format, \
- MY_NAME , ## arg); \
+ MY_NAME , ## arg); \
} while (0)
#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 3affc6472e65..f09b1010d477 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -46,6 +46,7 @@
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
+#include <linux/pci-acpi.h>
#include <linux/mutex.h>
#include "../pci.h"
@@ -62,61 +63,6 @@ static void acpiphp_sanitize_bus(struct pci_bus *bus);
static void acpiphp_set_hpp_values(acpi_handle handle, struct pci_bus *bus);
static void handle_hotplug_event_func(acpi_handle handle, u32 type, void *context);
-
-/*
- * initialization & terminatation routines
- */
-
-/**
- * is_ejectable - determine if a slot is ejectable
- * @handle: handle to acpi namespace
- *
- * Ejectable slot should satisfy at least these conditions:
- *
- * 1. has _ADR method
- * 2. has _EJ0 method
- *
- * optionally
- *
- * 1. has _STA method
- * 2. has _PS0 method
- * 3. has _PS3 method
- * 4. ..
- */
-static int is_ejectable(acpi_handle handle)
-{
- acpi_status status;
- acpi_handle tmp;
-
- status = acpi_get_handle(handle, "_ADR", &tmp);
- if (ACPI_FAILURE(status)) {
- return 0;
- }
-
- status = acpi_get_handle(handle, "_EJ0", &tmp);
- if (ACPI_FAILURE(status)) {
- return 0;
- }
-
- return 1;
-}
-
-
-/* callback routine to check for the existence of ejectable slots */
-static acpi_status
-is_ejectable_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
- int *count = (int *)context;
-
- if (is_ejectable(handle)) {
- (*count)++;
- /* only one ejectable slot is enough */
- return AE_CTRL_TERMINATE;
- } else {
- return AE_OK;
- }
-}
-
/* callback routine to check for the existence of a pci dock device */
static acpi_status
is_pci_dock_device(acpi_handle handle, u32 lvl, void *context, void **rv)
@@ -131,9 +77,6 @@ is_pci_dock_device(acpi_handle handle, u32 lvl, void *context, void **rv)
}
}
-
-
-
/*
* the _DCK method can do funny things... and sometimes not
* hah-hah funny.
@@ -160,9 +103,9 @@ static int post_dock_fixups(struct notifier_block *nb, unsigned long val,
if (((buses >> 8) & 0xff) != bus->secondary) {
buses = (buses & 0xff000000)
- | ((unsigned int)(bus->primary) << 0)
- | ((unsigned int)(bus->secondary) << 8)
- | ((unsigned int)(bus->subordinate) << 16);
+ | ((unsigned int)(bus->primary) << 0)
+ | ((unsigned int)(bus->secondary) << 8)
+ | ((unsigned int)(bus->subordinate) << 16);
pci_write_config_dword(bus->self, PCI_PRIMARY_BUS, buses);
}
return NOTIFY_OK;
@@ -184,17 +127,12 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
acpi_status status = AE_OK;
unsigned long long adr, sun;
int device, function, retval;
+ struct pci_bus *pbus = bridge->pci_bus;
- status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
-
- if (ACPI_FAILURE(status))
- return AE_OK;
-
- status = acpi_get_handle(handle, "_EJ0", &tmp);
-
- if (ACPI_FAILURE(status) && !(is_dock_device(handle)))
+ if (!acpi_pci_check_ejectable(pbus, handle) && !is_dock_device(handle))
return AE_OK;
+ acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
device = (adr >> 16) & 0xffff;
function = adr & 0xffff;
@@ -205,7 +143,8 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
INIT_LIST_HEAD(&newfunc->sibling);
newfunc->handle = handle;
newfunc->function = function;
- if (ACPI_SUCCESS(status))
+
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
newfunc->flags = FUNC_HAS_EJ0;
if (ACPI_SUCCESS(acpi_get_handle(handle, "_STA", &tmp)))
@@ -256,8 +195,7 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
bridge->nr_slots++;
dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
- slot->sun, pci_domain_nr(bridge->pci_bus),
- bridge->pci_bus->number, slot->device);
+ slot->sun, pci_domain_nr(pbus), pbus->number, device);
retval = acpiphp_register_hotplug_slot(slot);
if (retval) {
if (retval == -EBUSY)
@@ -274,8 +212,7 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
list_add_tail(&newfunc->sibling, &slot->funcs);
/* associate corresponding pci_dev */
- newfunc->pci_dev = pci_get_slot(bridge->pci_bus,
- PCI_DEVFN(device, function));
+ newfunc->pci_dev = pci_get_slot(pbus, PCI_DEVFN(device, function));
if (newfunc->pci_dev) {
slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
}
@@ -324,27 +261,15 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
/* see if it's worth looking at this bridge */
-static int detect_ejectable_slots(acpi_handle *bridge_handle)
+static int detect_ejectable_slots(struct pci_bus *pbus)
{
- acpi_status status;
- int count;
-
- count = 0;
-
- /* only check slots defined directly below bridge object */
- status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle, (u32)1,
- is_ejectable_slot, (void *)&count, NULL);
-
- /*
- * we also need to add this bridge if there is a dock bridge or
- * other pci device on a dock station (removable)
- */
- if (!count)
- status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle,
- (u32)1, is_pci_dock_device, (void *)&count,
- NULL);
-
- return count;
+ int found = acpi_pci_detect_ejectable(pbus);
+ if (!found) {
+ acpi_handle bridge_handle = acpi_pci_get_bridge_handle(pbus);
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle, (u32)1,
+ is_pci_dock_device, (void *)&found, NULL);
+ }
+ return found;
}
@@ -554,7 +479,7 @@ find_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
goto out;
/* check if this bridge has ejectable slots */
- if ((detect_ejectable_slots(handle) > 0)) {
+ if ((detect_ejectable_slots(dev->subordinate) > 0)) {
dbg("found PCI-to-PCI bridge at PCI %s\n", pci_name(dev));
add_p2p_bridge(handle, dev);
}
@@ -615,7 +540,7 @@ static int add_bridge(acpi_handle handle)
}
/* check if this bridge has ejectable slots */
- if (detect_ejectable_slots(handle) > 0) {
+ if (detect_ejectable_slots(pci_bus) > 0) {
dbg("found PCI host-bus bridge with hot-pluggable slots\n");
add_host_bridge(handle, pci_bus);
}
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 881fdd2b7313..5befa7e379b7 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -271,7 +271,7 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
dbg("%s: generationg bus event\n", __func__);
acpi_bus_generate_proc_event(note->device, note->event, detail);
acpi_bus_generate_netlink_event(note->device->pnp.device_class,
- note->device->dev.bus_id,
+ dev_name(&note->device->dev),
note->event, detail);
} else
note->event = event;
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 8514c3a1746a..c2e1bcbb28a7 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -45,7 +45,7 @@
#include "cpqphp.h"
#include "cpqphp_nvram.h"
-#include "../../../arch/x86/pci/pci.h" /* horrible hack showing how processor dependent we are... */
+#include <asm/pci_x86.h>
/* Global variables */
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index a60a25290995..cc227a8c4b11 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -1954,7 +1954,7 @@ void cpqhp_pushbutton_thread(unsigned long slot)
return ;
}
- if (func != NULL && ctrl != NULL) {
+ if (ctrl != NULL) {
if (cpqhp_process_SI(ctrl, func) != 0) {
amber_LED_on(ctrl, hp_slot);
green_LED_off(ctrl, hp_slot);
@@ -2604,7 +2604,7 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func
for (cloop = 0; cloop < 4; cloop++) {
if (irqs.valid_INT & (0x01 << cloop)) {
rc = cpqhp_set_irq(func->bus, func->device,
- 0x0A + cloop, irqs.interrupt[cloop]);
+ cloop + 1, irqs.interrupt[cloop]);
if (rc)
goto free_and_out;
}
@@ -2945,7 +2945,7 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func
}
if (!behind_bridge) {
- rc = cpqhp_set_irq(func->bus, func->device, temp_byte + 0x09, IRQ);
+ rc = cpqhp_set_irq(func->bus, func->device, temp_byte, IRQ);
if (rc)
return 1;
} else {
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index 09021930589f..6c0ed0fcb8ee 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -37,7 +37,7 @@
#include "../pci.h"
#include "cpqphp.h"
#include "cpqphp_nvram.h"
-#include "../../../arch/x86/pci/pci.h" /* horrible hack showing how processor dependent we are... */
+#include <asm/pci_x86.h>
u8 cpqhp_nic_irq;
@@ -171,7 +171,7 @@ int cpqhp_set_irq (u8 bus_num, u8 dev_num, u8 int_pin, u8 irq_num)
fakebus->number = bus_num;
dbg("%s: dev %d, bus %d, pin %d, num %d\n",
__func__, dev_num, bus_num, int_pin, irq_num);
- rc = pcibios_set_irq_routing(fakedev, int_pin - 0x0a, irq_num);
+ rc = pcibios_set_irq_routing(fakedev, int_pin - 1, irq_num);
kfree(fakedev);
kfree(fakebus);
dbg("%s: rc %d\n", __func__, rc);
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 3a2637a00934..b0e7de9e536d 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c
@@ -324,6 +324,7 @@ static int disable_slot(struct hotplug_slot *slot)
if (test_and_set_bit(0, &dslot->removed)) {
dbg("Slot already scheduled for removal\n");
+ pci_dev_put(dev);
return -ENODEV;
}
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index 633e743442ac..dd18f857dfb0 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -35,7 +35,7 @@
#include <linux/delay.h>
#include <linux/wait.h>
#include "../pci.h"
-#include "../../../arch/x86/pci/pci.h" /* for struct irq_routing_table */
+#include <asm/pci_x86.h> /* for struct irq_routing_table */
#include "ibmphp.h"
#define attn_on(sl) ibmphp_hpc_writeslot (sl, HPC_SLOT_ATTNON)
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 7072952ea1d2..db85284ffb62 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -219,11 +219,23 @@ struct hpc_ops {
#include <acpi/acpi_bus.h>
#include <linux/pci-acpi.h>
+extern void __init pciehp_acpi_slot_detection_init(void);
+extern int pciehp_acpi_slot_detection_check(struct pci_dev *dev);
+
+static inline void pciehp_firmware_init(void)
+{
+ pciehp_acpi_slot_detection_init();
+}
+
static inline int pciehp_get_hp_hw_control_from_firmware(struct pci_dev *dev)
{
+ int retval;
u32 flags = (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |
OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
- return acpi_get_hp_hw_control_from_firmware(dev, flags);
+ retval = acpi_get_hp_hw_control_from_firmware(dev, flags);
+ if (retval)
+ return retval;
+ return pciehp_acpi_slot_detection_check(dev);
}
static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev,
@@ -234,6 +246,7 @@ static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev,
return 0;
}
#else
+#define pciehp_firmware_init() do {} while (0)
#define pciehp_get_hp_hw_control_from_firmware(dev) 0
#define pciehp_get_hp_params_from_firmware(dev, hpp) (-ENODEV)
#endif /* CONFIG_ACPI */
diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
new file mode 100644
index 000000000000..438d795f9fe3
--- /dev/null
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -0,0 +1,141 @@
+/*
+ * ACPI related functions for PCI Express Hot Plug driver.
+ *
+ * Copyright (C) 2008 Kenji Kaneshige
+ * Copyright (C) 2008 Fujitsu Limited.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
+#include "pciehp.h"
+
+#define PCIEHP_DETECT_PCIE (0)
+#define PCIEHP_DETECT_ACPI (1)
+#define PCIEHP_DETECT_AUTO (2)
+#define PCIEHP_DETECT_DEFAULT PCIEHP_DETECT_AUTO
+
+static int slot_detection_mode;
+static char *pciehp_detect_mode;
+module_param(pciehp_detect_mode, charp, 0444);
+MODULE_PARM_DESC(pciehp_detect_mode,
+ "Slot detection mode: pcie, acpi, auto\n"
+ " pcie - Use PCIe based slot detection\n"
+ " acpi - Use ACPI for slot detection\n"
+ " auto(default) - Auto select mode. Use acpi option if duplicate\n"
+ " slot ids are found. Otherwise, use pcie option\n");
+
+int pciehp_acpi_slot_detection_check(struct pci_dev *dev)
+{
+ if (slot_detection_mode != PCIEHP_DETECT_ACPI)
+ return 0;
+ if (acpi_pci_detect_ejectable(dev->subordinate))
+ return 0;
+ return -ENODEV;
+}
+
+static int __init parse_detect_mode(void)
+{
+ if (!pciehp_detect_mode)
+ return PCIEHP_DETECT_DEFAULT;
+ if (!strcmp(pciehp_detect_mode, "pcie"))
+ return PCIEHP_DETECT_PCIE;
+ if (!strcmp(pciehp_detect_mode, "acpi"))
+ return PCIEHP_DETECT_ACPI;
+ if (!strcmp(pciehp_detect_mode, "auto"))
+ return PCIEHP_DETECT_AUTO;
+ warn("bad specifier '%s' for pciehp_detect_mode. Use default\n",
+ pciehp_detect_mode);
+ return PCIEHP_DETECT_DEFAULT;
+}
+
+static struct pcie_port_service_id __initdata port_pci_ids[] = {
+ {
+ .vendor = PCI_ANY_ID,
+ .device = PCI_ANY_ID,
+ .port_type = PCIE_ANY_PORT,
+ .service_type = PCIE_PORT_SERVICE_HP,
+ .driver_data = 0,
+ }, { /* end: all zeroes */ }
+};
+
+static int __initdata dup_slot_id;
+static int __initdata acpi_slot_detected;
+static struct list_head __initdata dummy_slots = LIST_HEAD_INIT(dummy_slots);
+
+/* Dummy driver for dumplicate name detection */
+static int __init dummy_probe(struct pcie_device *dev,
+ const struct pcie_port_service_id *id)
+{
+ int pos;
+ u32 slot_cap;
+ struct slot *slot, *tmp;
+ struct pci_dev *pdev = dev->port;
+ struct pci_bus *pbus = pdev->subordinate;
+ if (!(slot = kzalloc(sizeof(*slot), GFP_KERNEL)))
+ return -ENOMEM;
+ /* Note: pciehp_detect_mode != PCIEHP_DETECT_ACPI here */
+ if (pciehp_get_hp_hw_control_from_firmware(pdev))
+ return -ENODEV;
+ if (!(pos = pci_find_capability(pdev, PCI_CAP_ID_EXP)))
+ return -ENODEV;
+ pci_read_config_dword(pdev, pos + PCI_EXP_SLTCAP, &slot_cap);
+ slot->number = slot_cap >> 19;
+ list_for_each_entry(tmp, &dummy_slots, slot_list) {
+ if (tmp->number == slot->number)
+ dup_slot_id++;
+ }
+ list_add_tail(&slot->slot_list, &dummy_slots);
+ if (!acpi_slot_detected && acpi_pci_detect_ejectable(pbus))
+ acpi_slot_detected = 1;
+ return -ENODEV; /* dummy driver always returns error */
+}
+
+static struct pcie_port_service_driver __initdata dummy_driver = {
+ .name = "pciehp_dummy",
+ .id_table = port_pci_ids,
+ .probe = dummy_probe,
+};
+
+static int __init select_detection_mode(void)
+{
+ struct slot *slot, *tmp;
+ pcie_port_service_register(&dummy_driver);
+ pcie_port_service_unregister(&dummy_driver);
+ list_for_each_entry_safe(slot, tmp, &dummy_slots, slot_list) {
+ list_del(&slot->slot_list);
+ kfree(slot);
+ }
+ if (acpi_slot_detected && dup_slot_id)
+ return PCIEHP_DETECT_ACPI;
+ return PCIEHP_DETECT_PCIE;
+}
+
+void __init pciehp_acpi_slot_detection_init(void)
+{
+ slot_detection_mode = parse_detect_mode();
+ if (slot_detection_mode != PCIEHP_DETECT_AUTO)
+ goto out;
+ slot_detection_mode = select_detection_mode();
+out:
+ if (slot_detection_mode == PCIEHP_DETECT_ACPI)
+ info("Using ACPI for slot detection.\n");
+}
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 39cf248d24e3..5482d4ed8256 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -522,6 +522,7 @@ static int __init pcied_init(void)
{
int retval = 0;
+ pciehp_firmware_init();
retval = pcie_port_service_register(&hpdriver_portdrv);
dbg("pcie_port_service_register = %d\n", retval);
info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index fead63c6b49e..ff4034502d24 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -178,15 +178,14 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
"Issue of Slot Power Off command failed\n");
return;
}
+ /*
+ * After turning power off, we must wait for at least 1 second
+ * before taking any action that relies on power having been
+ * removed from the slot/adapter.
+ */
+ msleep(1000);
}
- /*
- * After turning power off, we must wait for at least 1 second
- * before taking any action that relies on power having been
- * removed from the slot/adapter.
- */
- msleep(1000);
-
if (PWR_LED(ctrl))
pslot->hpc_ops->green_led_off(pslot);
@@ -286,15 +285,14 @@ static int remove_board(struct slot *p_slot)
"Issue of Slot Disable command failed\n");
return retval;
}
+ /*
+ * After turning power off, we must wait for at least 1 second
+ * before taking any action that relies on power having been
+ * removed from the slot/adapter.
+ */
+ msleep(1000);
}
- /*
- * After turning power off, we must wait for at least 1 second
- * before taking any action that relies on power having been
- * removed from the slot/adapter.
- */
- msleep(1000);
-
if (PWR_LED(ctrl))
/* turn off Green LED */
p_slot->hpc_ops->green_led_off(p_slot);
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index b643ca13e4f1..71a8012886b0 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -42,42 +42,6 @@
static atomic_t pciehp_num_controllers = ATOMIC_INIT(0);
-struct ctrl_reg {
- u8 cap_id;
- u8 nxt_ptr;
- u16 cap_reg;
- u32 dev_cap;
- u16 dev_ctrl;
- u16 dev_status;
- u32 lnk_cap;
- u16 lnk_ctrl;
- u16 lnk_status;
- u32 slot_cap;
- u16 slot_ctrl;
- u16 slot_status;
- u16 root_ctrl;
- u16 rsvp;
- u32 root_status;
-} __attribute__ ((packed));
-
-/* offsets to the controller registers based on the above structure layout */
-enum ctrl_offsets {
- PCIECAPID = offsetof(struct ctrl_reg, cap_id),
- NXTCAPPTR = offsetof(struct ctrl_reg, nxt_ptr),
- CAPREG = offsetof(struct ctrl_reg, cap_reg),
- DEVCAP = offsetof(struct ctrl_reg, dev_cap),
- DEVCTRL = offsetof(struct ctrl_reg, dev_ctrl),
- DEVSTATUS = offsetof(struct ctrl_reg, dev_status),
- LNKCAP = offsetof(struct ctrl_reg, lnk_cap),
- LNKCTRL = offsetof(struct ctrl_reg, lnk_ctrl),
- LNKSTATUS = offsetof(struct ctrl_reg, lnk_status),
- SLOTCAP = offsetof(struct ctrl_reg, slot_cap),
- SLOTCTRL = offsetof(struct ctrl_reg, slot_ctrl),
- SLOTSTATUS = offsetof(struct ctrl_reg, slot_status),
- ROOTCTRL = offsetof(struct ctrl_reg, root_ctrl),
- ROOTSTATUS = offsetof(struct ctrl_reg, root_status),
-};
-
static inline int pciehp_readw(struct controller *ctrl, int reg, u16 *value)
{
struct pci_dev *dev = ctrl->pci_dev;
@@ -102,95 +66,9 @@ static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value)
return pci_write_config_dword(dev, ctrl->cap_base + reg, value);
}
-/* Field definitions in PCI Express Capabilities Register */
-#define CAP_VER 0x000F
-#define DEV_PORT_TYPE 0x00F0
-#define SLOT_IMPL 0x0100
-#define MSG_NUM 0x3E00
-
-/* Device or Port Type */
-#define NAT_ENDPT 0x00
-#define LEG_ENDPT 0x01
-#define ROOT_PORT 0x04
-#define UP_STREAM 0x05
-#define DN_STREAM 0x06
-#define PCIE_PCI_BRDG 0x07
-#define PCI_PCIE_BRDG 0x10
-
-/* Field definitions in Device Capabilities Register */
-#define DATTN_BUTTN_PRSN 0x1000
-#define DATTN_LED_PRSN 0x2000
-#define DPWR_LED_PRSN 0x4000
-
-/* Field definitions in Link Capabilities Register */
-#define MAX_LNK_SPEED 0x000F
-#define MAX_LNK_WIDTH 0x03F0
-#define LINK_ACTIVE_REPORTING 0x00100000
-
-/* Link Width Encoding */
-#define LNK_X1 0x01
-#define LNK_X2 0x02
-#define LNK_X4 0x04
-#define LNK_X8 0x08
-#define LNK_X12 0x0C
-#define LNK_X16 0x10
-#define LNK_X32 0x20
-
-/*Field definitions of Link Status Register */
-#define LNK_SPEED 0x000F
-#define NEG_LINK_WD 0x03F0
-#define LNK_TRN_ERR 0x0400
-#define LNK_TRN 0x0800
-#define SLOT_CLK_CONF 0x1000
-#define LINK_ACTIVE 0x2000
-
-/* Field definitions in Slot Capabilities Register */
-#define ATTN_BUTTN_PRSN 0x00000001
-#define PWR_CTRL_PRSN 0x00000002
-#define MRL_SENS_PRSN 0x00000004
-#define ATTN_LED_PRSN 0x00000008
-#define PWR_LED_PRSN 0x00000010
-#define HP_SUPR_RM_SUP 0x00000020
-#define HP_CAP 0x00000040
-#define SLOT_PWR_VALUE 0x000003F8
-#define SLOT_PWR_LIMIT 0x00000C00
-#define PSN 0xFFF80000 /* PSN: Physical Slot Number */
-
-/* Field definitions in Slot Control Register */
-#define ATTN_BUTTN_ENABLE 0x0001
-#define PWR_FAULT_DETECT_ENABLE 0x0002
-#define MRL_DETECT_ENABLE 0x0004
-#define PRSN_DETECT_ENABLE 0x0008
-#define CMD_CMPL_INTR_ENABLE 0x0010
-#define HP_INTR_ENABLE 0x0020
-#define ATTN_LED_CTRL 0x00C0
-#define PWR_LED_CTRL 0x0300
-#define PWR_CTRL 0x0400
-#define EMI_CTRL 0x0800
-
-/* Attention indicator and Power indicator states */
-#define LED_ON 0x01
-#define LED_BLINK 0x10
-#define LED_OFF 0x11
-
/* Power Control Command */
#define POWER_ON 0
-#define POWER_OFF 0x0400
-
-/* EMI Status defines */
-#define EMI_DISENGAGED 0
-#define EMI_ENGAGED 1
-
-/* Field definitions in Slot Status Register */
-#define ATTN_BUTTN_PRESSED 0x0001
-#define PWR_FAULT_DETECTED 0x0002
-#define MRL_SENS_CHANGED 0x0004
-#define PRSN_DETECT_CHANGED 0x0008
-#define CMD_COMPLETED 0x0010
-#define MRL_STATE 0x0020
-#define PRSN_STATE 0x0040
-#define EMI_STATE 0x0080
-#define EMI_STATUS_BIT 7
+#define POWER_OFF PCI_EXP_SLTCTL_PCC
static irqreturn_t pcie_isr(int irq, void *dev_id);
static void start_int_poll_timer(struct controller *ctrl, int sec);
@@ -253,22 +131,20 @@ static inline void pciehp_free_irq(struct controller *ctrl)
static int pcie_poll_cmd(struct controller *ctrl)
{
u16 slot_status;
- int timeout = 1000;
+ int err, timeout = 1000;
- if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {
- if (slot_status & CMD_COMPLETED) {
- pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);
- return 1;
- }
+ err = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
+ if (!err && (slot_status & PCI_EXP_SLTSTA_CC)) {
+ pciehp_writew(ctrl, PCI_EXP_SLTSTA, PCI_EXP_SLTSTA_CC);
+ return 1;
}
while (timeout > 0) {
msleep(10);
timeout -= 10;
- if (!pciehp_readw(ctrl, SLOTSTATUS, &slot_status)) {
- if (slot_status & CMD_COMPLETED) {
- pciehp_writew(ctrl, SLOTSTATUS, CMD_COMPLETED);
- return 1;
- }
+ err = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
+ if (!err && (slot_status & PCI_EXP_SLTSTA_CC)) {
+ pciehp_writew(ctrl, PCI_EXP_SLTSTA, PCI_EXP_SLTSTA_CC);
+ return 1;
}
}
return 0; /* timeout */
@@ -302,14 +178,14 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
mutex_lock(&ctrl->ctrl_lock);
- retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTSTA, &slot_status);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTSTATUS register\n",
__func__);
goto out;
}
- if (slot_status & CMD_COMPLETED) {
+ if (slot_status & PCI_EXP_SLTSTA_CC) {
if (!ctrl->no_cmd_complete) {
/*
* After 1 sec and CMD_COMPLETED still not set, just
@@ -332,7 +208,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
}
}
- retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTCTL, &slot_ctrl);
if (retval) {
ctrl_err(ctrl, "%s: Cannot read SLOTCTRL register\n", __func__);
goto out;
@@ -342,7 +218,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
slot_ctrl |= (cmd & mask);
ctrl->cmd_busy = 1;
smp_mb();
- retval = pciehp_writew(ctrl, SLOTCTRL, slot_ctrl);
+ retval = pciehp_writew(ctrl, PCI_EXP_SLTCTL, slot_ctrl);
if (retval)
ctrl_err(ctrl, "Cannot write to SLOTCTRL register\n");
@@ -356,8 +232,8 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
* completed interrupt is not enabled, we need to poll
* command completed event.
*/
- if (!(slot_ctrl & HP_INTR_ENABLE) ||
- !(slot_ctrl & CMD_CMPL_INTR_ENABLE))
+ if (!(slot_ctrl & PCI_EXP_SLTCTL_HPIE) ||
+ !(slot_ctrl & PCI_EXP_SLTCTL_CCIE))
poll = 1;
pcie_wait_cmd(ctrl, poll);
}
@@ -370,9 +246,9 @@ static inline int check_link_active(struct controller *ctrl)
{
u16 link_status;
- if (pciehp_readw(ctrl, LNKSTATUS, &link_status))
+ if (pciehp_readw(ctrl, PCI_EXP_LNKSTA, &link_status))
return 0;
- return !!(link_status & LINK_ACTIVE);
+ return !!(link_status & PCI_EXP_LNKSTA_DLLLA);
}
static void pcie_wait_link_active(struct controller *ctrl)
@@ -412,15 +288,15 @@ static int hpc_check_lnk_status(struct controller *ctrl)
} else
msleep(1000);
- retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status);
+ retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
if (retval) {
ctrl_err(ctrl, "Cannot read LNKSTATUS register\n");
return retval;
}
ctrl_dbg(ctrl, "%s: lnk_status = %x\n", __func__, lnk_status);
- if ( (lnk_status & LNK_TRN) || (lnk_status & LNK_TRN_ERR) ||
- !(lnk_status & NEG_LINK_WD)) {
+ if ((lnk_status & PCI_EXP_LNKSTA_LT) ||
+ !(lnk_status & PCI_EXP_LNKSTA_NLW)) {
ctrl_err(ctrl, "Link Training Error occurs \n");
retval = -1;
return retval;
@@ -436,16 +312,16 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status)
u8 atten_led_state;
int retval = 0;
- retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl);
+ retval = pciehp_readw(ctrl, PCI_EXP_SLTCTL, &slot_ctrl);