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| author | Shaohua Li <shaohua.li@intel.com> | 2007-04-25 11:05:12 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2007-04-25 01:13:47 -0400 |
| commit | f8993aff8b4de0317c6e081802ca5c86c449fef2 (patch) | |
| tree | aa0bd506c8887a4be0fafd6d005b515a899f708f /drivers/pci/pci-acpi.c | |
| parent | a23cf14b161b8deeb0f701d577a0e8be6365e247 (diff) | |
| download | linux-f8993aff8b4de0317c6e081802ca5c86c449fef2.tar.bz2 | |
ACPI: Disable MSI on request of FADT
The ACPI spec defines the bit and Microsoft uses it,
so Linux must use it too.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pci/pci-acpi.c')
| -rw-r--r-- | drivers/pci/pci-acpi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index a064f36a0805..b5ac810404c0 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -317,6 +317,10 @@ static int __init acpi_pci_init(void) { int ret; + if (acpi_gbl_FADT.boot_flags & BAF_MSI_NOT_SUPPORTED) { + printk(KERN_INFO"ACPI FADT declares the system doesn't support MSI, so disable it\n"); + pci_no_msi(); + } ret = register_acpi_bus_type(&acpi_pci_bus); if (ret) return 0; |