diff options
| author | Andrew Patterson <andrew.patterson@hp.com> | 2008-11-10 15:31:05 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-01-07 11:12:31 -0800 |
| commit | 07ae95f988a34465bdcb384bfa73c03424fe2312 (patch) | |
| tree | 4e1901b7fd2ccfdb85a92953c0010a4d3900a3f8 /drivers | |
| parent | eb9188bdb9d65aeead2382ec3dd656a17ec8936d (diff) | |
| download | linux-stable-07ae95f988a34465bdcb384bfa73c03424fe2312.tar.gz linux-stable-07ae95f988a34465bdcb384bfa73c03424fe2312.tar.bz2 linux-stable-07ae95f988a34465bdcb384bfa73c03424fe2312.zip | |
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: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/pci_root.c | 2 | ||||
| -rw-r--r-- | drivers/pci/msi.c | 31 | ||||
| -rw-r--r-- | drivers/pci/pci.c | 2 | ||||
| -rw-r--r-- | drivers/pci/pci.h | 2 |
4 files changed, 13 insertions, 24 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 9fe026b1c9d0..5b38a026d122 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -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); diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 11a51f8ed3b3..b4a90badd0a6 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -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); } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 48fa860276d4..2cfa41e367a7 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2105,8 +2105,6 @@ static int __devinit pci_init(void) pci_fixup_device(pci_fixup_final, dev); } - msi_init(); - return 0; } diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index d3e65e29df51..9162e242b99e 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -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 |