1 files changed, 0 insertions, 113 deletions
diff --git a/drivers/xen/xen-pciback/conf_space_capability_pm.c b/drivers/xen/xen-pciback/conf_space_capability_pm.c
deleted file mode 100644
index 04426165a9e5..000000000000
--- a/drivers/xen/xen-pciback/conf_space_capability_pm.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * PCI Backend - Configuration space overlay for power management
- *
- * Author: Ryan Wilson <hap9@epoch.ncsc.mil>
- */
-
-#include <linux/pci.h>
-#include "conf_space.h"
-#include "conf_space_capability.h"
-
-static int pm_caps_read(struct pci_dev *dev, int offset, u16 *value,
-			void *data)
-{
-	int err;
-	u16 real_value;
-
-	err = pci_read_config_word(dev, offset, &real_value);
-	if (err)
-		goto out;
-
-	*value = real_value & ~PCI_PM_CAP_PME_MASK;
-
-out:
-	return err;
-}
-
-/* PM_OK_BITS specifies the bits that the driver domain is allowed to change.
- * Can't allow driver domain to enable PMEs - they're shared */
-#define PM_OK_BITS (PCI_PM_CTRL_PME_STATUS|PCI_PM_CTRL_DATA_SEL_MASK)
-
-static int pm_ctrl_write(struct pci_dev *dev, int offset, u16 new_value,
-			 void *data)
-{
-	int err;
-	u16 old_value;
-	pci_power_t new_state, old_state;
-
-	err = pci_read_config_word(dev, offset, &old_value);
-	if (err)
-		goto out;
-
-	old_state = (pci_power_t)(old_value & PCI_PM_CTRL_STATE_MASK);
-	new_state = (pci_power_t)(new_value & PCI_PM_CTRL_STATE_MASK);
-
-	new_value &= PM_OK_BITS;
-	if ((old_value & PM_OK_BITS) != new_value) {
-		new_value = (old_value & ~PM_OK_BITS) | new_value;
-		err = pci_write_config_word(dev, offset, new_value);
-		if (err)
-			goto out;
-	}
-
-	/* Let pci core handle the power management change */
-	dev_dbg(&dev->dev, "set power state to %x\n", new_state);
-	err = pci_set_power_state(dev, new_state);
-	if (err) {
-		err = PCIBIOS_SET_FAILED;
-		goto out;
-	}
-
- out:
-	return err;
-}
-
-/* Ensure PMEs are disabled */
-static void *pm_ctrl_init(struct pci_dev *dev, int offset)
-{
-	int err;
-	u16 value;
-
-	err = pci_read_config_word(dev, offset, &value);
-	if (err)
-		goto out;
-
-	if (value & PCI_PM_CTRL_PME_ENABLE) {
-		value &= ~PCI_PM_CTRL_PME_ENABLE;
-		err = pci_write_config_word(dev, offset, value);
-	}
-
-out:
-	return ERR_PTR(err);
-}
-
-static const struct config_field caplist_pm[] = {
-	{
-		.offset     = PCI_PM_PMC,
-		.size       = 2,
-		.u.w.read   = pm_caps_read,
-	},
-	{
-		.offset     = PCI_PM_CTRL,
-		.size       = 2,
-		.init       = pm_ctrl_init,
-		.u.w.read   = pciback_read_config_word,
-		.u.w.write  = pm_ctrl_write,
-	},
-	{
-		.offset     = PCI_PM_PPB_EXTENSIONS,
-		.size       = 1,
-		.u.b.read   = pciback_read_config_byte,
-	},
-	{
-		.offset     = PCI_PM_DATA_REGISTER,
-		.size       = 1,
-		.u.b.read   = pciback_read_config_byte,
-	},
-	{}
-};
-
-struct pciback_config_capability pciback_config_capability_pm = {
-	.capability = PCI_CAP_ID_PM,
-	.fields = caplist_pm,
-};