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PCI: Make current and maximum bus speeds part of the PCI core

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Move the max_bus_speed and cur_bus_speed into the pci_bus.  Expose the
values through the PCI slot driver instead of the hotplug slot driver.
Update all the hotplug drivers to use the pci_bus instead of their own
data structures.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Matthew Wilcox
2009-12-13 08:11:32 -05:00
committed by Jesse Barnes
parent 536c8cb49e
commit 3749c51ac6
17 changed files with 246 additions and 498 deletions
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57
drivers/pci/hotplug/cpqphp_core.c
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@ -583,30 +583,6 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
return 0;
}
static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
{
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = ctrl->speed_capability;
return 0;
}
static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
{
struct slot *slot = hotplug_slot->private;
struct controller *ctrl = slot->ctrl;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
*value = ctrl->speed;
return 0;
}
static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
.set_attention_status = set_attention_status,
.enable_slot = process_SI,
@ -616,8 +592,6 @@ static struct hotplug_slot_ops cpqphp_hotplug_slot_ops = {
.get_attention_status = get_attention_status,
.get_latch_status = get_latch_status,
.get_adapter_status = get_adapter_status,
.get_max_bus_speed = get_max_bus_speed,
.get_cur_bus_speed = get_cur_bus_speed,
};
#define SLOT_NAME_SIZE 10
@ -629,6 +603,7 @@ static int ctrl_slot_setup(struct controller *ctrl,
struct slot *slot;
struct hotplug_slot *hotplug_slot;
struct hotplug_slot_info *hotplug_slot_info;
struct pci_bus *bus = ctrl->pci_bus;
u8 number_of_slots;
u8 slot_device;
u8 slot_number;
@ -694,7 +669,7 @@ static int ctrl_slot_setup(struct controller *ctrl,
slot->capabilities |= PCISLOT_64_BIT_SUPPORTED;
if (is_slot66mhz(slot))
slot->capabilities |= PCISLOT_66_MHZ_SUPPORTED;
if (ctrl->speed == PCI_SPEED_66MHz)
if (bus->cur_bus_speed == PCI_SPEED_66MHz)
slot->capabilities |= PCISLOT_66_MHZ_OPERATION;
ctrl_slot =
@ -844,6 +819,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
u32 rc;
struct controller *ctrl;
struct pci_func *func;
struct pci_bus *bus;
int err;
err = pci_enable_device(pdev);
@ -852,6 +828,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_name(pdev), err);
return err;
}
bus = pdev->subordinate;
/* Need to read VID early b/c it's used to differentiate CPQ and INTC
* discovery
@ -929,22 +906,22 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pci_read_config_byte(pdev, 0x41, &bus_cap);
if (bus_cap & 0x80) {
dbg("bus max supports 133MHz PCI-X\n");
ctrl->speed_capability = PCI_SPEED_133MHz_PCIX;
bus->max_bus_speed = PCI_SPEED_133MHz_PCIX;
break;
}
if (bus_cap & 0x40) {
dbg("bus max supports 100MHz PCI-X\n");
ctrl->speed_capability = PCI_SPEED_100MHz_PCIX;
bus->max_bus_speed = PCI_SPEED_100MHz_PCIX;
break;
}
if (bus_cap & 20) {
dbg("bus max supports 66MHz PCI-X\n");
ctrl->speed_capability = PCI_SPEED_66MHz_PCIX;
bus->max_bus_speed = PCI_SPEED_66MHz_PCIX;
break;
}
if (bus_cap & 10) {
dbg("bus max supports 66MHz PCI\n");
ctrl->speed_capability = PCI_SPEED_66MHz;
bus->max_bus_speed = PCI_SPEED_66MHz;
break;
}
@ -955,7 +932,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
case PCI_SUB_HPC_ID:
/* Original 6500/7000 implementation */
ctrl->slot_switch_type = 1;
ctrl->speed_capability = PCI_SPEED_33MHz;
bus->max_bus_speed = PCI_SPEED_33MHz;
ctrl->push_button = 0;
ctrl->pci_config_space = 1;
ctrl->defeature_PHP = 1;
@ -966,7 +943,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* First Pushbutton implementation */
ctrl->push_flag = 1;
ctrl->slot_switch_type = 1;
ctrl->speed_capability = PCI_SPEED_33MHz;
bus->max_bus_speed = PCI_SPEED_33MHz;
ctrl->push_button = 1;
ctrl->pci_config_space = 1;
ctrl->defeature_PHP = 1;
@ -976,7 +953,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
case PCI_SUB_HPC_ID_INTC:
/* Third party (6500/7000) */
ctrl->slot_switch_type = 1;
ctrl->speed_capability = PCI_SPEED_33MHz;
bus->max_bus_speed = PCI_SPEED_33MHz;
ctrl->push_button = 0;
ctrl->pci_config_space = 1;
ctrl->defeature_PHP = 1;
@ -987,7 +964,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* First 66 Mhz implementation */
ctrl->push_flag = 1;
ctrl->slot_switch_type = 1;
ctrl->speed_capability = PCI_SPEED_66MHz;
bus->max_bus_speed = PCI_SPEED_66MHz;
ctrl->push_button = 1;
ctrl->pci_config_space = 1;
ctrl->defeature_PHP = 1;
@ -998,7 +975,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* First PCI-X implementation, 100MHz */
ctrl->push_flag = 1;
ctrl->slot_switch_type = 1;
ctrl->speed_capability = PCI_SPEED_100MHz_PCIX;
bus->max_bus_speed = PCI_SPEED_100MHz_PCIX;
ctrl->push_button = 1;
ctrl->pci_config_space = 1;
ctrl->defeature_PHP = 1;
@ -1015,9 +992,9 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
case PCI_VENDOR_ID_INTEL:
/* Check for speed capability (0=33, 1=66) */
if (subsystem_deviceid & 0x0001)
ctrl->speed_capability = PCI_SPEED_66MHz;
bus->max_bus_speed = PCI_SPEED_66MHz;
else
ctrl->speed_capability = PCI_SPEED_33MHz;
bus->max_bus_speed = PCI_SPEED_33MHz;
/* Check for push button */
if (subsystem_deviceid & 0x0002)
@ -1079,7 +1056,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
pdev->bus->number);
dbg("Hotplug controller capabilities:\n");
dbg(" speed_capability %d\n", ctrl->speed_capability);
dbg(" speed_capability %d\n", bus->max_bus_speed);
dbg(" slot_switch_type %s\n", ctrl->slot_switch_type ?
"switch present" : "no switch");
dbg(" defeature_PHP %s\n", ctrl->defeature_PHP ?
@ -1142,7 +1119,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
/* Check for 66Mhz operation */
ctrl->speed = get_controller_speed(ctrl);
bus->cur_bus_speed = get_controller_speed(ctrl);
/********************************************************