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-rw-r--r--include/asm-powerpc/iommu.h19
-rw-r--r--include/asm-powerpc/iseries/hv_call.h4
-rw-r--r--include/asm-powerpc/iseries/hv_call_event.h134
-rw-r--r--include/asm-powerpc/iseries/hv_call_sc.h1
-rw-r--r--include/asm-powerpc/iseries/hv_lp_config.h1
-rw-r--r--include/asm-powerpc/iseries/hv_lp_event.h42
-rw-r--r--include/asm-powerpc/iseries/hv_types.h1
-rw-r--r--include/asm-powerpc/iseries/iseries_io.h14
-rw-r--r--include/asm-powerpc/iseries/it_exp_vpd_panel.h1
-rw-r--r--include/asm-powerpc/iseries/it_lp_naca.h22
-rw-r--r--include/asm-powerpc/iseries/it_lp_queue.h1
-rw-r--r--include/asm-powerpc/iseries/it_lp_reg_save.h3
-rw-r--r--include/asm-powerpc/iseries/lpar_map.h1
-rw-r--r--include/asm-powerpc/iseries/mf.h1
-rw-r--r--include/asm-powerpc/iseries/vio.h1
-rw-r--r--include/asm-powerpc/pci-bridge.h2
-rw-r--r--include/asm-powerpc/system.h8
17 files changed, 101 insertions, 155 deletions
diff --git a/include/asm-powerpc/iommu.h b/include/asm-powerpc/iommu.h
index 8a8393e5077..d5677cbec20 100644
--- a/include/asm-powerpc/iommu.h
+++ b/include/asm-powerpc/iommu.h
@@ -64,25 +64,6 @@ extern void iommu_free_table(struct device_node *dn);
#endif /* CONFIG_PPC_MULTIPLATFORM */
-#ifdef CONFIG_PPC_PSERIES
-
-/* Creates table for an individual device node */
-extern void iommu_devnode_init_pSeries(struct device_node *dn);
-
-#endif /* CONFIG_PPC_PSERIES */
-
-#ifdef CONFIG_PPC_ISERIES
-
-/* Creates table for an individual device node */
-extern void iommu_devnode_init_iSeries(struct device_node *dn);
-/* Get table parameters from HV */
-extern void iommu_table_getparms_iSeries(unsigned long busno,
- unsigned char slotno,
- unsigned char virtbus,
- struct iommu_table* tbl);
-
-#endif /* CONFIG_PPC_ISERIES */
-
/* Initializes an iommu_table based in values set in the passed-in
* structure
*/
diff --git a/include/asm-powerpc/iseries/hv_call.h b/include/asm-powerpc/iseries/hv_call.h
index e9f831c9a5e..162d653ad51 100644
--- a/include/asm-powerpc/iseries/hv_call.h
+++ b/include/asm-powerpc/iseries/hv_call.h
@@ -1,5 +1,4 @@
/*
- * HvCall.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
@@ -15,8 +14,7 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-/*
+ *
* This file contains the "hypervisor call" interface which is used to
* drive the hypervisor from the OS.
*/
diff --git a/include/asm-powerpc/iseries/hv_call_event.h b/include/asm-powerpc/iseries/hv_call_event.h
index 46763a30590..4cec4762076 100644
--- a/include/asm-powerpc/iseries/hv_call_event.h
+++ b/include/asm-powerpc/iseries/hv_call_event.h
@@ -1,5 +1,4 @@
/*
- * HvCallEvent.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
@@ -15,8 +14,7 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-/*
+ *
* This file contains the "hypervisor call" interface which is used to
* drive the hypervisor from the OS.
*/
@@ -33,32 +31,9 @@ typedef u8 HvLpEvent_Type;
typedef u8 HvLpEvent_AckInd;
typedef u8 HvLpEvent_AckType;
-struct HvCallEvent_PackedParms {
- u8 xAckType:1;
- u8 xAckInd:1;
- u8 xRsvd:1;
- u8 xTargetLp:5;
- u8 xType;
- u16 xSubtype;
- HvLpInstanceId xSourceInstId;
- HvLpInstanceId xTargetInstId;
-};
-
typedef u8 HvLpDma_Direction;
typedef u8 HvLpDma_AddressType;
-struct HvCallEvent_PackedDmaParms {
- u8 xDirection:1;
- u8 xLocalAddrType:1;
- u8 xRemoteAddrType:1;
- u8 xRsvd1:5;
- HvLpIndex xRemoteLp;
- u8 xType;
- u8 xRsvd2;
- HvLpInstanceId xLocalInstId;
- HvLpInstanceId xRemoteInstId;
-};
-
typedef u64 HvLpEvent_Rc;
typedef u64 HvLpDma_Rc;
@@ -92,11 +67,8 @@ static inline void HvCallEvent_setInterLpQueueIndex(u8 queueIndex)
static inline void HvCallEvent_setLpEventStack(u8 queueIndex,
char *eventStackAddr, u32 eventStackSize)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(eventStackAddr);
- HvCall3(HvCallEventSetLpEventStack, queueIndex, abs_addr,
- eventStackSize);
+ HvCall3(HvCallEventSetLpEventStack, queueIndex,
+ virt_to_abs(eventStackAddr), eventStackSize);
}
static inline void HvCallEvent_setLpEventQueueInterruptProc(u8 queueIndex,
@@ -108,14 +80,7 @@ static inline void HvCallEvent_setLpEventQueueInterruptProc(u8 queueIndex,
static inline HvLpEvent_Rc HvCallEvent_signalLpEvent(struct HvLpEvent *event)
{
- u64 abs_addr;
-
-#ifdef DEBUG_SENDEVENT
- printk("HvCallEvent_signalLpEvent: *event = %016lx\n ",
- (unsigned long)event);
-#endif
- abs_addr = virt_to_abs(event);
- return HvCall1(HvCallEventSignalLpEvent, abs_addr);
+ return HvCall1(HvCallEventSignalLpEvent, virt_to_abs(event));
}
static inline HvLpEvent_Rc HvCallEvent_signalLpEventFast(HvLpIndex targetLp,
@@ -127,17 +92,21 @@ static inline HvLpEvent_Rc HvCallEvent_signalLpEventFast(HvLpIndex targetLp,
{
/* Pack the misc bits into a single Dword to pass to PLIC */
union {
- struct HvCallEvent_PackedParms parms;
+ struct {
+ u8 ack_and_target;
+ u8 type;
+ u16 subtype;
+ HvLpInstanceId src_inst;
+ HvLpInstanceId target_inst;
+ } parms;
u64 dword;
} packed;
- packed.parms.xAckType = ackType;
- packed.parms.xAckInd = ackInd;
- packed.parms.xRsvd = 0;
- packed.parms.xTargetLp = targetLp;
- packed.parms.xType = type;
- packed.parms.xSubtype = subtype;
- packed.parms.xSourceInstId = sourceInstanceId;
- packed.parms.xTargetInstId = targetInstanceId;
+
+ packed.parms.ack_and_target = (ackType << 7) | (ackInd << 6) | targetLp;
+ packed.parms.type = type;
+ packed.parms.subtype = subtype;
+ packed.parms.src_inst = sourceInstanceId;
+ packed.parms.target_inst = targetInstanceId;
return HvCall7(HvCallEventSignalLpEventParms, packed.dword,
correlationToken, eventData1, eventData2,
@@ -146,18 +115,12 @@ static inline HvLpEvent_Rc HvCallEvent_signalLpEventFast(HvLpIndex targetLp,
static inline HvLpEvent_Rc HvCallEvent_ackLpEvent(struct HvLpEvent *event)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(event);
- return HvCall1(HvCallEventAckLpEvent, abs_addr);
+ return HvCall1(HvCallEventAckLpEvent, virt_to_abs(event));
}
static inline HvLpEvent_Rc HvCallEvent_cancelLpEvent(struct HvLpEvent *event)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(event);
- return HvCall1(HvCallEventCancelLpEvent, abs_addr);
+ return HvCall1(HvCallEventCancelLpEvent, virt_to_abs(event));
}
static inline HvLpInstanceId HvCallEvent_getSourceLpInstanceId(
@@ -195,59 +158,34 @@ static inline HvLpDma_Rc HvCallEvent_dmaBufList(HvLpEvent_Type type,
{
/* Pack the misc bits into a single Dword to pass to PLIC */
union {
- struct HvCallEvent_PackedDmaParms parms;
+ struct {
+ u8 flags;
+ HvLpIndex remote;
+ u8 type;
+ u8 reserved;
+ HvLpInstanceId local_inst;
+ HvLpInstanceId remote_inst;
+ } parms;
u64 dword;
} packed;
- packed.parms.xDirection = direction;
- packed.parms.xLocalAddrType = localAddressType;
- packed.parms.xRemoteAddrType = remoteAddressType;
- packed.parms.xRsvd1 = 0;
- packed.parms.xRemoteLp = remoteLp;
- packed.parms.xType = type;
- packed.parms.xRsvd2 = 0;
- packed.parms.xLocalInstId = localInstanceId;
- packed.parms.xRemoteInstId = remoteInstanceId;
+ packed.parms.flags = (direction << 7) |
+ (localAddressType << 6) | (remoteAddressType << 5);
+ packed.parms.remote = remoteLp;
+ packed.parms.type = type;
+ packed.parms.reserved = 0;
+ packed.parms.local_inst = localInstanceId;
+ packed.parms.remote_inst = remoteInstanceId;
return HvCall4(HvCallEventDmaBufList, packed.dword, localBufList,
remoteBufList, transferLength);
}
-static inline HvLpDma_Rc HvCallEvent_dmaSingle(HvLpEvent_Type type,
- HvLpIndex remoteLp, HvLpDma_Direction direction,
- HvLpInstanceId localInstanceId,
- HvLpInstanceId remoteInstanceId,
- HvLpDma_AddressType localAddressType,
- HvLpDma_AddressType remoteAddressType,
- u64 localAddrOrTce, u64 remoteAddrOrTce, u32 transferLength)
-{
- /* Pack the misc bits into a single Dword to pass to PLIC */
- union {
- struct HvCallEvent_PackedDmaParms parms;
- u64 dword;
- } packed;
-
- packed.parms.xDirection = direction;
- packed.parms.xLocalAddrType = localAddressType;
- packed.parms.xRemoteAddrType = remoteAddressType;
- packed.parms.xRsvd1 = 0;
- packed.parms.xRemoteLp = remoteLp;
- packed.parms.xType = type;
- packed.parms.xRsvd2 = 0;
- packed.parms.xLocalInstId = localInstanceId;
- packed.parms.xRemoteInstId = remoteInstanceId;
-
- return (HvLpDma_Rc)HvCall4(HvCallEventDmaSingle, packed.dword,
- localAddrOrTce, remoteAddrOrTce, transferLength);
-}
-
static inline HvLpDma_Rc HvCallEvent_dmaToSp(void *local, u32 remote,
u32 length, HvLpDma_Direction dir)
{
- u64 abs_addr;
-
- abs_addr = virt_to_abs(local);
- return HvCall4(HvCallEventDmaToSp, abs_addr, remote, length, dir);
+ return HvCall4(HvCallEventDmaToSp, virt_to_abs(local), remote,
+ length, dir);
}
#endif /* _ASM_POWERPC_ISERIES_HV_CALL_EVENT_H */
diff --git a/include/asm-powerpc/iseries/hv_call_sc.h b/include/asm-powerpc/iseries/hv_call_sc.h
index dec7e9d9ab7..f5d21095925 100644
--- a/include/asm-powerpc/iseries/hv_call_sc.h
+++ b/include/asm-powerpc/iseries/hv_call_sc.h
@@ -1,5 +1,4 @@
/*
- * HvCallSc.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/asm-powerpc/iseries/hv_lp_config.h b/include/asm-powerpc/iseries/hv_lp_config.h
index bc00f036bca..df8b2073971 100644
--- a/include/asm-powerpc/iseries/hv_lp_config.h
+++ b/include/asm-powerpc/iseries/hv_lp_config.h
@@ -1,5 +1,4 @@
/*
- * HvLpConfig.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/asm-powerpc/iseries/hv_lp_event.h b/include/asm-powerpc/iseries/hv_lp_event.h
index 499ab1ad018..4065a4de493 100644
--- a/include/asm-powerpc/iseries/hv_lp_event.h
+++ b/include/asm-powerpc/iseries/hv_lp_event.h
@@ -1,5 +1,4 @@
/*
- * HvLpEvent.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
@@ -32,17 +31,8 @@
* partitions through PLIC.
*/
-struct HvEventFlags {
- u8 xValid:1; /* Indicates a valid request x00-x00 */
- u8 xRsvd1:4; /* Reserved ... */
- u8 xAckType:1; /* Immediate or deferred ... */
- u8 xAckInd:1; /* Indicates if ACK required ... */
- u8 xFunction:1; /* Interrupt or Acknowledge ... */
-};
-
-
struct HvLpEvent {
- struct HvEventFlags xFlags; /* Event flags x00-x00 */
+ u8 flags; /* Event flags x00-x00 */
u8 xType; /* Type of message x01-x01 */
u16 xSubtype; /* Subtype for event x02-x03 */
u8 xSourceLp; /* Source LP x04-x04 */
@@ -126,6 +116,11 @@ extern int HvLpEvent_closePath(HvLpEvent_Type eventType, HvLpIndex lpIndex);
#define HvLpEvent_AckType_ImmediateAck 0
#define HvLpEvent_AckType_DeferredAck 1
+#define HV_LP_EVENT_INT 0x01
+#define HV_LP_EVENT_DO_ACK 0x02
+#define HV_LP_EVENT_DEFERRED_ACK 0x04
+#define HV_LP_EVENT_VALID 0x80
+
#define HvLpDma_Direction_LocalToRemote 0
#define HvLpDma_Direction_RemoteToLocal 1
@@ -139,4 +134,29 @@ extern int HvLpEvent_closePath(HvLpEvent_Type eventType, HvLpIndex lpIndex);
#define HvLpDma_Rc_InvalidAddress 4
#define HvLpDma_Rc_InvalidLength 5
+static inline int hvlpevent_is_valid(struct HvLpEvent *h)
+{
+ return h->flags & HV_LP_EVENT_VALID;
+}
+
+static inline void hvlpevent_invalidate(struct HvLpEvent *h)
+{
+ h->flags &= ~ HV_LP_EVENT_VALID;
+}
+
+static inline int hvlpevent_is_int(struct HvLpEvent *h)
+{
+ return h->flags & HV_LP_EVENT_INT;
+}
+
+static inline int hvlpevent_is_ack(struct HvLpEvent *h)
+{
+ return !hvlpevent_is_int(h);
+}
+
+static inline int hvlpevent_need_ack(struct HvLpEvent *h)
+{
+ return h->flags & HV_LP_EVENT_DO_ACK;
+}
+
#endif /* _ASM_POWERPC_ISERIES_HV_LP_EVENT_H */
diff --git a/include/asm-powerpc/iseries/hv_types.h b/include/asm-powerpc/iseries/hv_types.h
index c38f7e3d01d..c3e6d2a1d1c 100644
--- a/include/asm-powerpc/iseries/hv_types.h
+++ b/include/asm-powerpc/iseries/hv_types.h
@@ -1,5 +1,4 @@
/*
- * HvTypes.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/asm-powerpc/iseries/iseries_io.h b/include/asm-powerpc/iseries/iseries_io.h
index 56b2113ff0f..496aa852b61 100644
--- a/include/asm-powerpc/iseries/iseries_io.h
+++ b/include/asm-powerpc/iseries/iseries_io.h
@@ -6,7 +6,7 @@
#ifdef CONFIG_PPC_ISERIES
#include <linux/types.h>
/*
- * File iSeries_io.h created by Allan Trautman on Thu Dec 28 2000.
+ * Created by Allan Trautman on Thu Dec 28 2000.
*
* Remaps the io.h for the iSeries Io
* Copyright (C) 2000 Allan H Trautman, IBM Corporation
@@ -32,6 +32,7 @@
* End Change Activity
*/
+#ifdef CONFIG_PCI
extern u8 iSeries_Read_Byte(const volatile void __iomem * IoAddress);
extern u16 iSeries_Read_Word(const volatile void __iomem * IoAddress);
extern u32 iSeries_Read_Long(const volatile void __iomem * IoAddress);
@@ -44,6 +45,17 @@ extern void iSeries_memcpy_toio(volatile void __iomem *dest, void *source,
size_t n);
extern void iSeries_memcpy_fromio(void *dest,
const volatile void __iomem *source, size_t n);
+#else
+static inline u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress)
+{
+ return 0xff;
+}
+
+static inline void iSeries_Write_Byte(u8 IoData,
+ volatile void __iomem *IoAddress)
+{
+}
+#endif /* CONFIG_PCI */
#endif /* CONFIG_PPC_ISERIES */
#endif /* _ASM_POWERPC_ISERIES_ISERIES_IO_H */
diff --git a/include/asm-powerpc/iseries/it_exp_vpd_panel.h b/include/asm-powerpc/iseries/it_exp_vpd_panel.h
index 66a17a230c5..304a609ae21 100644
--- a/include/asm-powerpc/iseries/it_exp_vpd_panel.h
+++ b/include/asm-powerpc/iseries/it_exp_vpd_panel.h
@@ -1,5 +1,4 @@
/*
- * ItExtVpdPanel.h
* Copyright (C) 2002 Dave Boutcher IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/asm-powerpc/iseries/it_lp_naca.h b/include/asm-powerpc/iseries/it_lp_naca.h
index c3ef1de45d8..4fdcf052927 100644
--- a/include/asm-powerpc/iseries/it_lp_naca.h
+++ b/include/asm-powerpc/iseries/it_lp_naca.h
@@ -1,5 +1,4 @@
/*
- * ItLpNaca.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
@@ -37,17 +36,13 @@ struct ItLpNaca {
u8 xLpIndex; // LP Index x0B-x0B
u16 xMaxLpQueues; // Number of allocated queues x0C-x0D
u16 xLpQueueOffset; // Offset to start of LP queues x0E-x0F
- u8 xPirEnvironMode:8; // Piranha or hardware x10-x10
- u8 xPirConsoleMode:8; // Piranha console indicator x11-x11
- u8 xPirDasdMode:8; // Piranha dasd indicator x12-x12
+ u8 xPirEnvironMode; // Piranha or hardware x10-x10
+ u8 xPirConsoleMode; // Piranha console indicator x11-x11
+ u8 xPirDasdMode; // Piranha dasd indicator x12-x12
u8 xRsvd1_0[5]; // Reserved for Piranha related x13-x17
- u8 xLparInstalled:1; // Is LPAR installed on system x18-x1F
- u8 xSysPartitioned:1; // Is the system partitioned ...
- u8 xHwSyncedTBs:1; // Hardware synced TBs ...
- u8 xIntProcUtilHmt:1; // Utilize HMT for interrupts ...
- u8 xRsvd1_1:4; // Reserved ...
- u8 xSpVpdFormat:8; // VPD areas are in CSP format ...
- u8 xIntProcRatio:8; // Ratio of int procs to procs ...
+ u8 flags; // flags, see below x18-x1F
+ u8 xSpVpdFormat; // VPD areas are in CSP format ...
+ u8 xIntProcRatio; // Ratio of int procs to procs ...
u8 xRsvd1_2[5]; // Reserved ...
u16 xRsvd1_3; // Reserved x20-x21
u16 xPlicVrmIndex; // VRM index of PLIC x22-x23
@@ -77,4 +72,9 @@ struct ItLpNaca {
extern struct ItLpNaca itLpNaca;
+#define ITLPNACA_LPAR 0x80 /* Is LPAR installed on the system */
+#define ITLPNACA_PARTITIONED 0x40 /* Is the system partitioned */
+#define ITLPNACA_HWSYNCEDTBS 0x20 /* Hardware synced TBs */
+#define ITLPNACA_HMTINT 0x10 /* Utilize MHT for interrupts */
+
#endif /* _ASM_POWERPC_ISERIES_IT_LP_NACA_H */
diff --git a/include/asm-powerpc/iseries/it_lp_queue.h b/include/asm-powerpc/iseries/it_lp_queue.h
index a60d03afbf9..b7c6fc12cce 100644
--- a/include/asm-powerpc/iseries/it_lp_queue.h
+++ b/include/asm-powerpc/iseries/it_lp_queue.h
@@ -1,5 +1,4 @@
/*
- * ItLpQueue.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/asm-powerpc/iseries/it_lp_reg_save.h b/include/asm-powerpc/iseries/it_lp_reg_save.h
index 81824e1bb76..5403b756f65 100644
--- a/include/asm-powerpc/iseries/it_lp_reg_save.h
+++ b/include/asm-powerpc/iseries/it_lp_reg_save.h
@@ -1,5 +1,4 @@
/*
- * ItLpRegSave.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
@@ -83,4 +82,4 @@ struct ItLpRegSave {
extern struct ItLpRegSave iseries_reg_save[];
-#endif /* _ITLPREGSAVE_H */
+#endif /* _ASM_POWERPC_ISERIES_IT_LP_REG_SAVE_H */
diff --git a/include/asm-powerpc/iseries/lpar_map.h b/include/asm-powerpc/iseries/lpar_map.h
index 84fc321615b..2ec384d66ab 100644
--- a/include/asm-powerpc/iseries/lpar_map.h
+++ b/include/asm-powerpc/iseries/lpar_map.h
@@ -1,5 +1,4 @@
/*
- * LparMap.h
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
diff --git a/include/asm-powerpc/iseries/mf.h b/include/asm-powerpc/iseries/mf.h
index e7bd57a03fb..857e5202fc7 100644
--- a/include/asm-powerpc/iseries/mf.h
+++ b/include/asm-powerpc/iseries/mf.h
@@ -1,5 +1,4 @@
/*
- * mf.h
* Copyright (C) 2001 Troy D. Armstrong IBM Corporation
* Copyright (C) 2004 Stephen Rothwell IBM Corporation
*
diff --git a/include/asm-powerpc/iseries/vio.h b/include/asm-powerpc/iseries/vio.h
index 7e3a469420d..72a97d37aac 100644
--- a/include/asm-powerpc/iseries/vio.h
+++ b/include/asm-powerpc/iseries/vio.h
@@ -1,5 +1,4 @@
/* -*- linux-c -*-
- * drivers/char/vio.h
*
* iSeries Virtual I/O Message Path header
*
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index b0d816fe2e2..38de92d41a1 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -142,8 +142,6 @@ void pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus);
extern int pcibios_remove_root_bus(struct pci_controller *phb);
-extern void phbs_remap_io(void);
-
static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
{
struct device_node *busdn = bus->sysdata;
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index 1be629b4fb9..9b822afa7d0 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -133,6 +133,14 @@ extern int fix_alignment(struct pt_regs *);
extern void cvt_fd(float *from, double *to, struct thread_struct *thread);
extern void cvt_df(double *from, float *to, struct thread_struct *thread);
+#ifndef CONFIG_SMP
+extern void discard_lazy_cpu_state(void);
+#else
+static inline void discard_lazy_cpu_state(void)
+{
+}
+#endif
+
#ifdef CONFIG_ALTIVEC
extern void flush_altivec_to_thread(struct task_struct *);
#else
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-17 05:58:13 +0000