Commit 07ae95f9 authored by Andrew Patterson's avatar Andrew Patterson Committed by Jesse Barnes

ACPI/PCI: PCI MSI _OSC support capabilities called when root bridge added

The _OSC capability OSC_MSI_SUPPORT is set when the root bridge is added
with pci_acpi_osc_support(), so we no longer need to do it in the PCI
MSI driver.  Also adds the function pci_msi_enabled, which returns true
if pci=nomsi is not on the kernel command-line.
Signed-off-by: default avatarAndrew Patterson <andrew.patterson@hp.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent eb9188bd
......@@ -350,6 +350,8 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
if (pcie_aspm_enabled())
flags |= OSC_ACTIVE_STATE_PWR_SUPPORT |
OSC_CLOCK_PWR_CAPABILITY_SUPPORT;
if (pci_msi_enabled())
flags |= OSC_MSI_SUPPORT;
if (flags != base_flags)
pci_acpi_osc_support(device->handle, flags);
......
......@@ -776,28 +776,19 @@ void pci_no_msi(void)
pci_msi_enable = 0;
}
void pci_msi_init_pci_dev(struct pci_dev *dev)
{
INIT_LIST_HEAD(&dev->msi_list);
}
#ifdef CONFIG_ACPI
#include <linux/acpi.h>
#include <linux/pci-acpi.h>
static void __devinit msi_acpi_init(void)
/**
* pci_msi_enabled - is MSI enabled?
*
* Returns true if MSI has not been disabled by the command-line option
* pci=nomsi.
**/
int pci_msi_enabled(void)
{
if (acpi_pci_disabled)
return;
pci_osc_support_set(OSC_MSI_SUPPORT);
pcie_osc_support_set(OSC_MSI_SUPPORT);
return pci_msi_enable;
}
#else
static inline void msi_acpi_init(void) { }
#endif /* CONFIG_ACPI */
EXPORT_SYMBOL(pci_msi_enabled);
void __devinit msi_init(void)
void pci_msi_init_pci_dev(struct pci_dev *dev)
{
if (!pci_msi_enable)
return;
msi_acpi_init();
INIT_LIST_HEAD(&dev->msi_list);
}
......@@ -2105,8 +2105,6 @@ static int __devinit pci_init(void)
pci_fixup_device(pci_fixup_final, dev);
}
msi_init();
return 0;
}
......
......@@ -102,11 +102,9 @@ extern unsigned int pci_pm_d3_delay;
#ifdef CONFIG_PCI_MSI
void pci_no_msi(void);
extern void pci_msi_init_pci_dev(struct pci_dev *dev);
extern void __devinit msi_init(void);
#else
static inline void pci_no_msi(void) { }
static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
static inline void msi_init(void) { }
#endif
#ifdef CONFIG_PCIEAER
......
......@@ -779,6 +779,10 @@ static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev)
static inline void pci_restore_msi_state(struct pci_dev *dev)
{ }
static inline int pci_msi_enabled(void)
{
return 0;
}
#else
extern int pci_enable_msi(struct pci_dev *dev);
extern void pci_msi_shutdown(struct pci_dev *dev);
......@@ -789,6 +793,7 @@ extern void pci_msix_shutdown(struct pci_dev *dev);
extern void pci_disable_msix(struct pci_dev *dev);
extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
extern void pci_restore_msi_state(struct pci_dev *dev);
extern int pci_msi_enabled(void);
#endif
#ifndef CONFIG_PCIEASPM
......
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