1. 29 9月, 2016 2 次提交
  2. 14 7月, 2016 2 次提交
  3. 21 6月, 2016 1 次提交
    • G
      PCI/hotplug: PowerPC PowerNV PCI hotplug driver · 66725152
      Gavin Shan 提交于
      This adds standalone driver to support PCI hotplug for PowerPC PowerNV
      platform that runs on top of skiboot firmware. The firmware identifies
      hotpluggable slots and marked their device tree node with proper
      "ibm,slot-pluggable" and "ibm,reset-by-firmware". The driver scans
      device tree nodes to create/register PCI hotplug slot accordingly.
      
      The PCI slots are organized in fashion of tree, which means one
      PCI slot might have parent PCI slot and parent PCI slot possibly
      contains multiple child PCI slots. At the plugging time, the parent
      PCI slot is populated before its children. The child PCI slots are
      removed before their parent PCI slot can be removed from the system.
      
      If the skiboot firmware doesn't support slot status retrieval, the PCI
      slot device node shouldn't have property "ibm,reset-by-firmware". In
      that case, none of valid PCI slots will be detected from device tree.
      The skiboot firmware doesn't export the capability to access attention
      LEDs yet and it's something for TBD.
      Signed-off-by: NGavin Shan <gwshan@linux.vnet.ibm.com>
      Acked-by: NBjorn Helgaas <bhelgaas@google.com>
      Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
      66725152
新手
引导
客服 返回
顶部