aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/powerpc/platforms/iseries/irq.c13
-rw-r--r--arch/powerpc/platforms/iseries/lpevents.c12
-rw-r--r--arch/powerpc/platforms/iseries/mf.c16
-rw-r--r--arch/powerpc/platforms/iseries/viopath.c12
-rw-r--r--drivers/block/viodasd.c32
-rw-r--r--drivers/cdrom/viocd.c6
-rw-r--r--drivers/char/viocons.c31
-rw-r--r--drivers/net/iseries_veth.c4
-rw-r--r--include/asm-powerpc/iseries/hv_lp_event.h41
9 files changed, 82 insertions, 85 deletions
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index 42e978e4897..3d023856405 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -147,20 +147,11 @@ static void int_received(struct pci_event *event, struct pt_regs *regs)
static void pci_event_handler(struct HvLpEvent *event, struct pt_regs *regs)
{
if (event && (event->xType == HvLpEvent_Type_PciIo)) {
- switch (event->xFlags.xFunction) {
- case HvLpEvent_Function_Int:
+ if (hvlpevent_is_int(event))
int_received((struct pci_event *)event, regs);
- break;
- case HvLpEvent_Function_Ack:
+ else
printk(KERN_ERR
"pci_event_handler: unexpected ack received\n");
- break;
- default:
- printk(KERN_ERR
- "pci_event_handler: unexpected event function %d\n",
- (int)event->xFlags.xFunction);
- break;
- }
} else if (event)
printk(KERN_ERR
"pci_event_handler: Unrecognized PCI event type 0x%x\n",
diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c
index e9fb98bf895..0b885300d1d 100644
--- a/arch/powerpc/platforms/iseries/lpevents.c
+++ b/arch/powerpc/platforms/iseries/lpevents.c
@@ -53,7 +53,7 @@ static struct HvLpEvent * get_next_hvlpevent(void)
struct HvLpEvent * event;
event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr;
- if (event->xFlags.xValid) {
+ if (hvlpevent_is_valid(event)) {
/* rmb() needed only for weakly consistent machines (regatta) */
rmb();
/* Set pointer to next potential event */
@@ -84,7 +84,7 @@ int hvlpevent_is_pending(void)
next_event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr;
- return next_event->xFlags.xValid |
+ return hvlpevent_is_valid(next_event) ||
hvlpevent_queue.xPlicOverflowIntPending;
}
@@ -101,18 +101,18 @@ static void hvlpevent_clear_valid(struct HvLpEvent * event)
switch (extra) {
case 3:
tmp = (struct HvLpEvent*)((char*)event + 3 * LpEventAlign);
- tmp->xFlags.xValid = 0;
+ hvlpevent_invalidate(tmp);
case 2:
tmp = (struct HvLpEvent*)((char*)event + 2 * LpEventAlign);
- tmp->xFlags.xValid = 0;
+ hvlpevent_invalidate(tmp);
case 1:
tmp = (struct HvLpEvent*)((char*)event + 1 * LpEventAlign);
- tmp->xFlags.xValid = 0;
+ hvlpevent_invalidate(tmp);
}
mb();
- event->xFlags.xValid = 0;
+ hvlpevent_invalidate(event);
}
void process_hvlpevents(struct pt_regs *regs)
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index 49e7e4b8584..a41d8b78c0c 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -251,10 +251,7 @@ static struct pending_event *new_pending_event(void)
}
memset(ev, 0, sizeof(struct pending_event));
hev = &ev->event.hp_lp_event;
- hev->xFlags.xValid = 1;
- hev->xFlags.xAckType = HvLpEvent_AckType_ImmediateAck;
- hev->xFlags.xAckInd = HvLpEvent_AckInd_DoAck;
- hev->xFlags.xFunction = HvLpEvent_Function_Int;
+ hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DO_ACK | HV_LP_EVENT_INT;
hev->xType = HvLpEvent_Type_MachineFac;
hev->xSourceLp = HvLpConfig_getLpIndex();
hev->xTargetLp = primary_lp;
@@ -518,17 +515,10 @@ static void handle_ack(struct io_mf_lp_event *event)
static void hv_handler(struct HvLpEvent *event, struct pt_regs *regs)
{
if ((event != NULL) && (event->xType == HvLpEvent_Type_MachineFac)) {
- switch(event->xFlags.xFunction) {
- case HvLpEvent_Function_Ack:
+ if (hvlpevent_is_ack(event))
handle_ack((struct io_mf_lp_event *)event);
- break;
- case HvLpEvent_Function_Int:
+ else
handle_int((struct io_mf_lp_event *)event);
- break;
- default:
- printk(KERN_ERR "mf.c: non ack/int event received\n");
- break;
- }
} else
printk(KERN_ERR "mf.c: alien event received\n");
}
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 84267269559..622a30149b4 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -270,7 +270,7 @@ static void handleMonitorEvent(struct HvLpEvent *event)
* First see if this is just a normal monitor message from the
* other partition
*/
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
remoteLp = event->xSourceLp;
if (!viopathStatus[remoteLp].isActive)
sendMonMsg(remoteLp);
@@ -331,13 +331,12 @@ static void handleConfig(struct HvLpEvent *event)
{
if (!event)
return;
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
printk(VIOPATH_KERN_WARN
"unexpected config request from partition %d",
event->xSourceLp);
- if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
- (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
@@ -377,7 +376,7 @@ static void vio_handleEvent(struct HvLpEvent *event, struct pt_regs *regs)
int subtype = (event->xSubtype & VIOMAJOR_SUBTYPE_MASK)
>> VIOMAJOR_SUBTYPE_SHIFT;
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
remoteLp = event->xSourceLp;
/*
* The isActive is checked because if the hosting partition
@@ -436,8 +435,7 @@ static void vio_handleEvent(struct HvLpEvent *event, struct pt_regs *regs)
"unexpected virtual io event subtype %d from partition %d\n",
event->xSubtype, remoteLp);
/* No handler. Ack if necessary */
- if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
- (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+ if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index d1aaf31bd97..f63e07bd9f9 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -293,6 +293,7 @@ static int send_request(struct request *req)
u16 viocmd;
HvLpEvent_Rc hvrc;
struct vioblocklpevent *bevent;
+ struct HvLpEvent *hev;
struct scatterlist sg[VIOMAXBLOCKDMA];
int sgindex;
int statindex;
@@ -347,22 +348,19 @@ static int send_request(struct request *req)
* token so we can match the response up later
*/
memset(bevent, 0, sizeof(struct vioblocklpevent));
- bevent->event.xFlags.xValid = 1;
- bevent->event.xFlags.xFunction = HvLpEvent_Function_Int;
- bevent->event.xFlags.xAckInd = HvLpEvent_AckInd_DoAck;
- bevent->event.xFlags.xAckType = HvLpEvent_AckType_ImmediateAck;
- bevent->event.xType = HvLpEvent_Type_VirtualIo;
- bevent->event.xSubtype = viocmd;
- bevent->event.xSourceLp = HvLpConfig_getLpIndex();
- bevent->event.xTargetLp = viopath_hostLp;
- bevent->event.xSizeMinus1 =
+ hev = &bevent->event;
+ hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DO_ACK |
+ HV_LP_EVENT_INT;
+ hev->xType = HvLpEvent_Type_VirtualIo;
+ hev->xSubtype = viocmd;
+ hev->xSourceLp = HvLpConfig_getLpIndex();
+ hev->xTargetLp = viopath_hostLp;
+ hev->xSizeMinus1 =
offsetof(struct vioblocklpevent, u.rw_data.dma_info) +
(sizeof(bevent->u.rw_data.dma_info[0]) * nsg) - 1;
- bevent->event.xSourceInstanceId =
- viopath_sourceinst(viopath_hostLp);
- bevent->event.xTargetInstanceId =
- viopath_targetinst(viopath_hostLp);
- bevent->event.xCorrelationToken = (u64)req;
+ hev->xSourceInstanceId = viopath_sourceinst(viopath_hostLp);
+ hev->xTargetInstanceId = viopath_targetinst(viopath_hostLp);
+ hev->xCorrelationToken = (u64)req;
bevent->version = VIOVERSION;
bevent->disk = DEVICE_NO(d);
bevent->u.rw_data.offset = start;
@@ -649,10 +647,10 @@ static void handle_block_event(struct HvLpEvent *event)
/* Notification that a partition went away! */
return;
/* First, we should NEVER get an int here...only acks */
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
printk(VIOD_KERN_WARNING
"Yikes! got an int in viodasd event handler!\n");
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
@@ -695,7 +693,7 @@ static void handle_block_event(struct HvLpEvent *event)
default:
printk(VIOD_KERN_WARNING "invalid subtype!");
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index b5191780ecc..193446e6a08 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -542,10 +542,10 @@ static void vio_handle_cd_event(struct HvLpEvent *event)
/* Notification that a partition went away! */
return;
/* First, we should NEVER get an int here...only acks */
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
printk(VIOCD_KERN_WARNING
"Yikes! got an int in viocd event handler!\n");
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
@@ -616,7 +616,7 @@ return_complete:
printk(VIOCD_KERN_WARNING
"message with invalid subtype %0x04X!\n",
event->xSubtype & VIOMINOR_SUBTYPE_MASK);
- if (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck) {
+ if (hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c
index faee5e7acaf..4e536038874 100644
--- a/drivers/char/viocons.c
+++ b/drivers/char/viocons.c
@@ -476,19 +476,19 @@ static struct port_info *get_port_data(struct tty_struct *tty)
*/
static void initDataEvent(struct viocharlpevent *viochar, HvLpIndex lp)
{
+ struct HvLpEvent *hev = &viochar->event;
+
memset(viochar, 0, sizeof(struct viocharlpevent));
- viochar->event.xFlags.xValid = 1;
- viochar->event.xFlags.xFunction = HvLpEvent_Function_Int;
- viochar->event.xFlags.xAckInd = HvLpEvent_AckInd_NoAck;
- viochar->event.xFlags.xAckType = HvLpEvent_AckType_DeferredAck;
- viochar->event.xType = HvLpEvent_Type_VirtualIo;
- viochar->event.xSubtype = viomajorsubtype_chario | viochardata;
- viochar->event.xSourceLp = HvLpConfig_getLpIndex();
- viochar->event.xTargetLp = lp;
- viochar->event.xSizeMinus1 = sizeof(struct viocharlpevent);
- viochar->event.xSourceInstanceId = viopath_sourceinst(lp);
- viochar->event.xTargetInstanceId = viopath_targetinst(lp);
+ hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DEFERRED_ACK |
+ HV_LP_EVENT_INT;
+ hev->xType = HvLpEvent_Type_VirtualIo;
+ hev->xSubtype = viomajorsubtype_chario | viochardata;
+ hev->xSourceLp = HvLpConfig_getLpIndex();
+ hev->xTargetLp = lp;
+ hev->xSizeMinus1 = sizeof(struct viocharlpevent);
+ hev->xSourceInstanceId = viopath_sourceinst(lp);
+ hev->xTargetInstanceId = viopath_targetinst(lp);
}
/*
@@ -752,7 +752,7 @@ static void vioHandleOpenEvent(struct HvLpEvent *event)
struct port_info *pi;
int reject = 0;
- if (event->xFlags.xFunction == HvLpEvent_Function_Ack) {
+ if (hvlpevent_is_ack(event)) {
if (port >= VTTY_PORTS)
return;
@@ -788,7 +788,7 @@ static void vioHandleOpenEvent(struct HvLpEvent *event)
}
/* This had better require an ack, otherwise complain */
- if (event->xFlags.xAckInd != HvLpEvent_AckInd_DoAck) {
+ if (!hvlpevent_need_ack(event)) {
printk(VIOCONS_KERN_WARN "viocharopen without ack bit!\n");
return;
}
@@ -856,7 +856,7 @@ static void vioHandleCloseEvent(struct HvLpEvent *event)
struct viocharlpevent *cevent = (struct viocharlpevent *)event;
u8 port = cevent->virtual_device;
- if (event->xFlags.xFunction == HvLpEvent_Function_Int) {
+ if (hvlpevent_is_int(event)) {
if (port >= VTTY_PORTS) {
printk(VIOCONS_KERN_WARN
"close message from invalid virtual device.\n");
@@ -1056,8 +1056,7 @@ static void vioHandleCharEvent(struct HvLpEvent *event)
vioHandleConfig(event);
break;
default:
- if ((event->xFlags.xFunction == HvLpEvent_Function_Int) &&
- (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) {
+ if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) {
event->xRc = HvLpEvent_Rc_InvalidSubtype;
HvCallEvent_ackLpEvent(event);
}
diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
index 77eadf84cb2..f0f04be989d 100644
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c
@@ -590,9 +590,9 @@ static void veth_handle_event(struct HvLpEvent *event, struct pt_regs *regs)
{
struct veth_lpevent *veth_event = (struct veth_lpevent *)event;
- if (event->xFlags.xFunction == HvLpEvent_Function_Ack)
+ if (hvlpevent_is_ack(event))
veth_handle_ack(veth_event);
- else if (event->xFlags.xFunction == HvLpEvent_Function_Int)
+ else
veth_handle_int(veth_event);
}
diff --git a/include/asm-powerpc/iseries/hv_lp_event.h b/include/asm-powerpc/iseries/hv_lp_event.h
index 499ab1ad018..8ee89b67b8f 100644
--- a/include/asm-powerpc/iseries/hv_lp_event.h
+++ b/include/asm-powerpc/iseries/hv_lp_event.h
@@ -32,17 +32,8 @@
* 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 +117,11 @@ 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 +135,29 @@ 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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 15:56:52 +0000