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| author | Shaohua Li <shaohua.li@intel.com> | 2011-05-27 14:59:39 +0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-07-22 08:25:36 -0700 |
| commit | 0aba496fc820d7c36775f2fd0ef81994e1af67a8 (patch) | |
| tree | a4d09af72fc69641c9018690f94a1eb532c0075a /arch/x86 | |
| parent | efe6d7272b1bdb3989322a6f3f9ed063a40c6beb (diff) | |
| download | op-kernel-dev-0aba496fc820d7c36775f2fd0ef81994e1af67a8.zip op-kernel-dev-0aba496fc820d7c36775f2fd0ef81994e1af67a8.tar.gz | |
x86/PCI: select direct access mode for mmconfig option
Direct access is needed in mmconf mode too. There are two reasons:
1. we need it to access first 256 bytes. We have bug before that
using mmconf to access pci config space hangs system (when
resizing BARs), so we use type1 config for legacy config space.
2. when doing mmconfg bar checking, we need access ACPI _CRS,
which might access PCI config space.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index da34972..5b3e6ec 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1905,7 +1905,7 @@ config PCI_BIOS # x86-64 doesn't support PCI BIOS access from long mode so always go direct. config PCI_DIRECT def_bool y - depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC)) + depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC || PCI_GOMMCONFIG)) config PCI_MMCONFIG def_bool y |
