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authorLv Zheng <lv.zheng@intel.com>2016-03-24 09:41:54 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-04-05 03:53:34 +0200
commit2d3349de8072baf2c2dd096664fa818d5339bb5a (patch)
tree6990e45fff2c1b802e02ae7fe561653a2cc1bde0 /drivers/acpi/acpica/acresrc.h
parentd1461a1b506e4a2df9f703c5f39f765b65c9672e (diff)
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ACPICA: Namespace: Reorder \_SB._INI to make sure it is evaluated before _REG evaluations
ACPICA commit f005ee6b90d152c1f499efcca6b771a93903cb55 This patch splits \_SB._INI evaluation from device initialization code, so that it can be performed before PCI_Config _REG evaluations. This is required for the device enumeration process. Some named objects are initialized in \_SB._INI and PCI_Config _REG evaluations may use uninitialized named objects because of the order issue. This must be fixed before fixing ECDT order issue. There are existing tables allowing ECDT EC to be used for the entire device enumeration process, but the enabling of ECDT EC is done in \_SB._INI. Thus \_SB._INI must be the first control method evaluated in the device enumeration process. Normally, the order should be automatically ensured by the device enumeration process itself (for example, PCI_Config _REGs are evaluated by the PCI bus driver when the driver is probed by the enumeration process), but since the process is split on Linux (partially done in Linux, partially done in ACPICA), we need to ensure this with special logics in order to be regression safe. Lv Zheng. Link: https://github.com/acpica/acpica/commit/f005ee6b Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/acresrc.h')
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