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| author | Taku Izumi <izumi.taku@jp.fujitsu.com> | 2008-10-17 13:52:51 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-10-22 16:42:35 -0700 |
| commit | d389fec6a2aec1ea7d47833f36a0413a619c8c12 (patch) | |
| tree | f2cb010b0ea9a995cf19bc7c43e59ad47fffe5e2 /drivers/pci/msi.c | |
| parent | ab20440c376ff0454cb93904a888212d874fbb6b (diff) | |
| download | lwn-d389fec6a2aec1ea7d47833f36a0413a619c8c12.tar.gz lwn-d389fec6a2aec1ea7d47833f36a0413a619c8c12.zip | |
ACPI/PCI: Set support bit for MSI in support field of _OSC
Currently linux doesn't have any code to set the "MSI supported" bit in
Support Fireld of _OSC. This patch adds the code for that.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index d2812013fd22..74801f7df9c9 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -759,3 +759,24 @@ 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) +{ + if (acpi_pci_disabled) + return; + pci_osc_support_set(OSC_MSI_SUPPORT); + pcie_osc_support_set(OSC_MSI_SUPPORT); +} +#else +static inline void msi_acpi_init(void) { } +#endif /* CONFIG_ACPI */ + +void __devinit msi_init(void) +{ + if (!pci_msi_enable) + return; + msi_acpi_init(); +} |