Revert "[PATCH] PCI: restore BAR values..."
Revert commit fec59a711e, which is
breaking sparc64 that doesn't have a working pci_update_resource.
We'll re-do this after 2.6.13 when we'll do it all properly.
This commit is contained in:
Linus Torvalds
parent
138b9dd1fd
commit
dc836b5b6f
|
|
@ -413,12 +413,6 @@ static int pci_assign_bus_resource(const struct pci_bus *bus,
|
|||
return -EBUSY;
|
||||
}
|
||||
|
||||
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno)
|
||||
{
|
||||
/* Not implemented for sparc64... */
|
||||
BUG();
|
||||
}
|
||||
|
||||
int pci_assign_resource(struct pci_dev *pdev, int resource)
|
||||
{
|
||||
struct pcidev_cookie *pcp = pdev->sysdata;
|
||||
|
|
|
|||
|
|
@ -221,37 +221,6 @@ pci_find_parent_resource(const struct pci_dev *dev, struct resource *res)
|
|||
return best;
|
||||
}
|
||||
|
||||
/**
|
||||
* pci_restore_bars - restore a devices BAR values (e.g. after wake-up)
|
||||
* @dev: PCI device to have its BARs restored
|
||||
*
|
||||
* Restore the BAR values for a given device, so as to make it
|
||||
* accessible by its driver.
|
||||
*/
|
||||
void
|
||||
pci_restore_bars(struct pci_dev *dev)
|
||||
{
|
||||
int i, numres;
|
||||
|
||||
switch (dev->hdr_type) {
|
||||
case PCI_HEADER_TYPE_NORMAL:
|
||||
numres = 6;
|
||||
break;
|
||||
case PCI_HEADER_TYPE_BRIDGE:
|
||||
numres = 2;
|
||||
break;
|
||||
case PCI_HEADER_TYPE_CARDBUS:
|
||||
numres = 1;
|
||||
break;
|
||||
default:
|
||||
/* Should never get here, but just in case... */
|
||||
return;
|
||||
}
|
||||
|
||||
for (i = 0; i < numres; i ++)
|
||||
pci_update_resource(dev, &dev->resource[i], i);
|
||||
}
|
||||
|
||||
/**
|
||||
* pci_set_power_state - Set the power state of a PCI device
|
||||
* @dev: PCI device to be suspended
|
||||
|
|
@ -270,7 +239,7 @@ int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t t);
|
|||
int
|
||||
pci_set_power_state(struct pci_dev *dev, pci_power_t state)
|
||||
{
|
||||
int pm, need_restore = 0;
|
||||
int pm;
|
||||
u16 pmcsr, pmc;
|
||||
|
||||
/* bound the state we're entering */
|
||||
|
|
@ -309,17 +278,14 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
|
|||
return -EIO;
|
||||
}
|
||||
|
||||
pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
|
||||
|
||||
/* If we're in D3, force entire word to 0.
|
||||
* This doesn't affect PME_Status, disables PME_En, and
|
||||
* sets PowerState to 0.
|
||||
*/
|
||||
if (dev->current_state >= PCI_D3hot) {
|
||||
if (!(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET))
|
||||
need_restore = 1;
|
||||
if (dev->current_state >= PCI_D3hot)
|
||||
pmcsr = 0;
|
||||
} else {
|
||||
else {
|
||||
pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
|
||||
pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
|
||||
pmcsr |= state;
|
||||
}
|
||||
|
|
@ -342,22 +308,6 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state)
|
|||
platform_pci_set_power_state(dev, state);
|
||||
|
||||
dev->current_state = state;
|
||||
|
||||
/* According to section 5.4.1 of the "PCI BUS POWER MANAGEMENT
|
||||
* INTERFACE SPECIFICATION, REV. 1.2", a device transitioning
|
||||
* from D3hot to D0 _may_ perform an internal reset, thereby
|
||||
* going to "D0 Uninitialized" rather than "D0 Initialized".
|
||||
* For example, at least some versions of the 3c905B and the
|
||||
* 3c556B exhibit this behaviour.
|
||||
*
|
||||
* At least some laptop BIOSen (e.g. the Thinkpad T21) leave
|
||||
* devices in a D3hot state at boot. Consequently, we need to
|
||||
* restore at least the BARs so that the device will be
|
||||
* accessible to its driver.
|
||||
*/
|
||||
if (need_restore)
|
||||
pci_restore_bars(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -855,7 +805,6 @@ struct pci_dev *isa_bridge;
|
|||
EXPORT_SYMBOL(isa_bridge);
|
||||
#endif
|
||||
|
||||
EXPORT_SYMBOL_GPL(pci_restore_bars);
|
||||
EXPORT_SYMBOL(pci_enable_device_bars);
|
||||
EXPORT_SYMBOL(pci_enable_device);
|
||||
EXPORT_SYMBOL(pci_disable_device);
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@
|
|||
#include "pci.h"
|
||||
|
||||
|
||||
void
|
||||
static void
|
||||
pci_update_resource(struct pci_dev *dev, struct resource *res, int resno)
|
||||
{
|
||||
struct pci_bus_region region;
|
||||
|
|
|
|||
|
|
@ -225,7 +225,6 @@
|
|||
#define PCI_PM_CAP_PME_D3cold 0x8000 /* PME# from D3 (cold) */
|
||||
#define PCI_PM_CTRL 4 /* PM control and status register */
|
||||
#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
|
||||
#define PCI_PM_CTRL_NO_SOFT_RESET 0x0004 /* No reset for D3hot->D0 */
|
||||
#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
|
||||
#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
|
||||
#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
|
||||
|
|
@ -817,9 +816,7 @@ int pci_set_mwi(struct pci_dev *dev);
|
|||
void pci_clear_mwi(struct pci_dev *dev);
|
||||
int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
|
||||
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
|
||||
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
|
||||
int pci_assign_resource(struct pci_dev *dev, int i);
|
||||
void pci_restore_bars(struct pci_dev *dev);
|
||||
|
||||
/* ROM control related routines */
|
||||
void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size);
|
||||
|
|
|
|||
Loading…
Reference in New Issue