powerpc/powernv: Functions to get/set PCI slot state
This exports 4 functions, which base on the corresponding OPAL
APIs to get/set PCI slot status. Those functions are going to
be used by PowerNV PCI hotplug driver:
pnv_pci_get_device_tree() opal_get_device_tree()
pnv_pci_get_presence_state() opal_pci_get_presence_state()
pnv_pci_get_power_state() opal_pci_get_power_state()
pnv_pci_set_power_state() opal_pci_set_power_state()
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index cd9371b3..72b5f27 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -158,7 +158,11 @@
#define OPAL_LEDS_SET_INDICATOR 115
#define OPAL_CEC_REBOOT2 116
#define OPAL_CONSOLE_FLUSH 117
-#define OPAL_LAST 117
+#define OPAL_GET_DEVICE_TREE 118
+#define OPAL_PCI_GET_PRESENCE_STATE 119
+#define OPAL_PCI_GET_POWER_STATE 120
+#define OPAL_PCI_SET_POWER_STATE 121
+#define OPAL_LAST 121
/* Device tree flags */
@@ -344,6 +348,18 @@
OPAL_ASSERT_RESET = 1
};
+enum OpalPciSlotPresence {
+ OPAL_PCI_SLOT_EMPTY = 0,
+ OPAL_PCI_SLOT_PRESENT = 1
+};
+
+enum OpalPciSlotPower {
+ OPAL_PCI_SLOT_POWER_OFF = 0,
+ OPAL_PCI_SLOT_POWER_ON = 1,
+ OPAL_PCI_SLOT_OFFLINE = 2,
+ OPAL_PCI_SLOT_ONLINE = 3
+};
+
enum OpalSlotLedType {
OPAL_SLOT_LED_TYPE_ID = 0, /* IDENTIFY LED */
OPAL_SLOT_LED_TYPE_FAULT = 1, /* FAULT LED */