+ Queue;
/* capture current head and tail */
- head = readl(&pqhdr->Head);
- tail = readl(&pqhdr->Tail);
+ head = readl(&pqhdr->head);
+ tail = readl(&pqhdr->tail);
/* queue is full if (head + 1) % n equals tail */
- if (((head + 1) % readl(&pqhdr->MaxSignalSlots)) == tail) {
- nof = readq(&pqhdr->NumOverflows) + 1;
- writeq(nof, &pqhdr->NumOverflows);
+ if (((head + 1) % readl(&pqhdr->max_slots)) == tail) {
+ nof = readq(&pqhdr->num_overflows) + 1;
+ writeq(nof, &pqhdr->num_overflows);
return 0;
}
/* increment the head index */
- head = (head + 1) % readl(&pqhdr->MaxSignalSlots);
+ head = (head + 1) % readl(&pqhdr->max_slots);
/* copy signal to the head location from the area pointed to
* by pSignal
*/
- psignal = (char __iomem *)pqhdr + readq(&pqhdr->oSignalBase) +
- (head * readl(&pqhdr->SignalSize));
- memcpy_toio(psignal, pSignal, readl(&pqhdr->SignalSize));
+ psignal = (char __iomem *)pqhdr + readq(&pqhdr->sig_base_offset) +
+ (head * readl(&pqhdr->signal_size));
+ memcpy_toio(psignal, pSignal, readl(&pqhdr->signal_size));
mb(); /* channel synch */
- writel(head, &pqhdr->Head);
+ writel(head, &pqhdr->head);
- writeq(readq(&pqhdr->NumSignalsSent) + 1, &pqhdr->NumSignalsSent);
+ writeq(readq(&pqhdr->num_sent) + 1, &pqhdr->num_sent);
return 1;
}
EXPORT_SYMBOL_GPL(visor_signal_insert);
readq(&pChannel->ch_space_offset)) + Queue;
/* capture current head and tail */
- head = readl(&pqhdr->Head);
- tail = readl(&pqhdr->Tail);
+ head = readl(&pqhdr->head);
+ tail = readl(&pqhdr->tail);
/* queue is empty if the head index equals the tail index */
if (head == tail) {
- writeq(readq(&pqhdr->NumEmptyCnt) + 1, &pqhdr->NumEmptyCnt);
+ writeq(readq(&pqhdr->num_empty) + 1, &pqhdr->num_empty);
return 0;
}
/* advance past the 'empty' front slot */
- tail = (tail + 1) % readl(&pqhdr->MaxSignalSlots);
+ tail = (tail + 1) % readl(&pqhdr->max_slots);
/* copy signal from tail location to the area pointed to by pSignal */
- psource = (char __iomem *) pqhdr + readq(&pqhdr->oSignalBase) +
- (tail * readl(&pqhdr->SignalSize));
- memcpy_fromio(pSignal, psource, readl(&pqhdr->SignalSize));
+ psource = (char __iomem *) pqhdr + readq(&pqhdr->sig_base_offset) +
+ (tail * readl(&pqhdr->signal_size));
+ memcpy_fromio(pSignal, psource, readl(&pqhdr->signal_size));
mb(); /* channel synch */
- writel(tail, &pqhdr->Tail);
+ writel(tail, &pqhdr->tail);
- writeq(readq(&pqhdr->NumSignalsReceived) + 1,
- &pqhdr->NumSignalsReceived);
+ writeq(readq(&pqhdr->num_received) + 1,
+ &pqhdr->num_received);
return 1;
}
EXPORT_SYMBOL_GPL(visor_signal_remove);
pChannel->ch_space_offset) + Queue;
/* capture current head and tail */
- head = pqhdr->Head;
- tail = pqhdr->Tail;
+ head = pqhdr->head;
+ tail = pqhdr->tail;
/* queue is empty if the head index equals the tail index */
if (head == tail)
while (head != tail) {
/* advance past the 'empty' front slot */
- tail = (tail + 1) % pqhdr->MaxSignalSlots;
+ tail = (tail + 1) % pqhdr->max_slots;
/* copy signal from tail location to the area pointed
* to by pSignal
*/
psource =
- (char *) pqhdr + pqhdr->oSignalBase +
- (tail * pqhdr->SignalSize);
- memcpy((char *) pSignal + (pqhdr->SignalSize * signalCount),
- psource, pqhdr->SignalSize);
+ (char *) pqhdr + pqhdr->sig_base_offset +
+ (tail * pqhdr->signal_size);
+ memcpy((char *) pSignal + (pqhdr->signal_size * signalCount),
+ psource, pqhdr->signal_size);
mb(); /* channel synch */
- pqhdr->Tail = tail;
+ pqhdr->tail = tail;
signalCount++;
- pqhdr->NumSignalsReceived++;
+ pqhdr->num_received++;
}
return signalCount;
struct signal_queue_header __iomem *pqhdr =
(struct signal_queue_header __iomem *) ((char __iomem *) pChannel +
readq(&pChannel->ch_space_offset)) + Queue;
- return readl(&pqhdr->Head) == readl(&pqhdr->Tail);
+ return readl(&pqhdr->head) == readl(&pqhdr->tail);
}
EXPORT_SYMBOL_GPL(visor_signalqueue_empty);
/* Subheader for the Signal Type variation of the Common Channel */
struct signal_queue_header {
/* 1st cache line */
- u32 VersionId; /* SIGNAL_QUEUE_HEADER Version ID */
- u32 Type; /* Queue type: storage, network */
- u64 Size; /* Total size of this queue in bytes */
- u64 oSignalBase; /* Offset to signal queue area */
- u64 FeatureFlags; /* Flags to modify behavior */
- u64 NumSignalsSent; /* Total # of signals placed in this queue */
- u64 NumOverflows; /* Total # of inserts failed due to
+ u32 version; /* SIGNAL_QUEUE_HEADER Version ID */
+ u32 chtype; /* Queue type: storage, network */
+ u64 size; /* Total size of this queue in bytes */
+ u64 sig_base_offset; /* Offset to signal queue area */
+ u64 features; /* Flags to modify behavior */
+ u64 num_sent; /* Total # of signals placed in this queue */
+ u64 num_overflows; /* Total # of inserts failed due to
* full queue */
- u32 SignalSize; /* Total size of a signal for this queue */
- u32 MaxSignalSlots; /* Max # of slots in queue, 1 slot is
+ u32 signal_size; /* Total size of a signal for this queue */
+ u32 max_slots; /* Max # of slots in queue, 1 slot is
* always empty */
- u32 MaxSignals; /* Max # of signals in queue
+ u32 max_signals; /* Max # of signals in queue
* (MaxSignalSlots-1) */
- u32 Head; /* Queue head signal # */
+ u32 head; /* Queue head signal # */
/* 2nd cache line */
- u64 NumSignalsReceived; /* Total # of signals removed from this queue */
- u32 Tail; /* Queue tail signal # (on separate
+ u64 num_received; /* Total # of signals removed from this queue */
+ u32 tail; /* Queue tail signal # (on separate
* cache line) */
- u32 Reserved1; /* Reserved field */
- u64 Reserved2; /* Resrved field */
- u64 ClientQueue;
- u64 NumInterruptsReceived; /* Total # of Interrupts received. This
+ u32 reserved1; /* Reserved field */
+ u64 reserved2; /* Reserved field */
+ u64 client_queue;
+ u64 num_irq_received; /* Total # of Interrupts received. This
* is incremented by the ISR in the
* guest windows driver */
- u64 NumEmptyCnt; /* Number of times that visor_signal_remove
+ u64 num_empty; /* Number of times that visor_signal_remove
* is called and returned Empty
* Status. */
- u32 ErrorFlags; /* Error bits set during SignalReinit
+ u32 errorflags; /* Error bits set during SignalReinit
* to denote trouble with client's
* fields */
- u8 Filler[12]; /* Pad out to 64 byte cacheline */
+ u8 filler[12]; /* Pad out to 64 byte cacheline */
};
#pragma pack(pop)
#define QSIZEFROMBYTES(bytes) (QSLOTSFROMBYTES(bytes)*SIZEOF_CMDRSP)
#define SignalQInit(x) \
do { \
- x->cmdQ.Size = QSIZEFROMBYTES(x->ChannelHeader.size); \
- x->cmdQ.oSignalBase = SIZEOF_PROTOCOL - \
+ x->cmdQ.size = QSIZEFROMBYTES(x->ChannelHeader.size); \
+ x->cmdQ.sig_base_offset = SIZEOF_PROTOCOL - \
offsetof(ULTRA_IO_CHANNEL_PROTOCOL, cmdQ); \
- x->cmdQ.SignalSize = SIZEOF_CMDRSP; \
- x->cmdQ.MaxSignalSlots = \
+ x->cmdQ.signal_size = SIZEOF_CMDRSP; \
+ x->cmdQ.max_slots = \
QSLOTSFROMBYTES(x->ChannelHeader.size); \
- x->cmdQ.MaxSignals = x->cmdQ.MaxSignalSlots - 1; \
- x->rspQ.Size = QSIZEFROMBYTES(x->ChannelHeader.size); \
- x->rspQ.oSignalBase = \
- (SIZEOF_PROTOCOL + x->cmdQ.Size) - \
+ x->cmdQ.max_signals = x->cmdQ.max_slots - 1; \
+ x->rspQ.size = QSIZEFROMBYTES(x->ChannelHeader.size); \
+ x->rspQ.sig_base_offset = \
+ (SIZEOF_PROTOCOL + x->cmdQ.size) - \
offsetof(ULTRA_IO_CHANNEL_PROTOCOL, rspQ); \
- x->rspQ.SignalSize = SIZEOF_CMDRSP; \
- x->rspQ.MaxSignalSlots = \
+ x->rspQ.signal_size = SIZEOF_CMDRSP; \
+ x->rspQ.max_slots = \
QSLOTSFROMBYTES(x->ChannelHeader.size); \
- x->rspQ.MaxSignals = x->rspQ.MaxSignalSlots - 1; \
+ x->rspQ.max_signals = x->rspQ.max_slots - 1; \
x->ChannelHeader.ch_space_offset = \
offsetof(ULTRA_IO_CHANNEL_PROTOCOL, cmdQ); \
} while (0)
INIT_CLIENTSTRING(x, ULTRA_IO_CHANNEL_PROTOCOL, clientStr,
clientStrLen);
SignalQInit(x);
- if ((x->cmdQ.MaxSignalSlots > MAX_NUMSIGNALS) ||
- (x->rspQ.MaxSignalSlots > MAX_NUMSIGNALS)) {
+ if ((x->cmdQ.max_slots > MAX_NUMSIGNALS) ||
+ (x->rspQ.max_slots > MAX_NUMSIGNALS)) {
return 0;
}
- if ((x->cmdQ.MaxSignalSlots < MIN_NUMSIGNALS) ||
- (x->rspQ.MaxSignalSlots < MIN_NUMSIGNALS)) {
+ if ((x->cmdQ.max_slots < MIN_NUMSIGNALS) ||
+ (x->rspQ.max_slots < MIN_NUMSIGNALS)) {
return 0;
}
return 1;
INIT_CLIENTSTRING(x, ULTRA_IO_CHANNEL_PROTOCOL, clientStr,
clientStrLen);
SignalQInit(x);
- if ((x->cmdQ.MaxSignalSlots > MAX_NUMSIGNALS) ||
- (x->rspQ.MaxSignalSlots > MAX_NUMSIGNALS)) {
+ if ((x->cmdQ.max_slots > MAX_NUMSIGNALS) ||
+ (x->rspQ.max_slots > MAX_NUMSIGNALS)) {
return 0;
}
- if ((x->cmdQ.MaxSignalSlots < MIN_NUMSIGNALS) ||
- (x->rspQ.MaxSignalSlots < MIN_NUMSIGNALS)) {
+ if ((x->cmdQ.max_slots < MIN_NUMSIGNALS) ||
+ (x->rspQ.max_slots < MIN_NUMSIGNALS)) {
return 0;
}
return 1;
pqhdr = (struct signal_queue_header __iomem *)
((char __iomem *) pChannelHeader +
readq(&pChannelHeader->ch_space_offset)) + IOCHAN_FROM_IOPART;
- writeq(readq(&pqhdr->NumInterruptsReceived) + 1,
- &pqhdr->NumInterruptsReceived);
+ writeq(readq(&pqhdr->num_irq_received) + 1,
+ &pqhdr->num_irq_received);
atomic_set(&virthbainfo->interrupt_rcvd, 1);
wake_up_interruptible(&virthbainfo->rsp_queue);
return IRQ_HANDLED;
pqhdr = (struct signal_queue_header __iomem *)
((char __iomem *)pChannelHeader +
readq(&pChannelHeader->ch_space_offset)) + IOCHAN_FROM_IOPART;
- virthbainfo->flags_addr = &pqhdr->FeatureFlags;
+ virthbainfo->flags_addr = &pqhdr->features;
if (!uisthread_start(&virthbainfo->chinfo.threadinfo,
process_incoming_rsps,
* channel header
*/
#define SIG_DATA_OFFSET(chan_hdr, q, sig_hdr, slot) \
- (SIG_QUEUE_OFFSET(chan_hdr, q) + (sig_hdr)->oSignalBase + \
- ((slot) * (sig_hdr)->SignalSize))
+ (SIG_QUEUE_OFFSET(chan_hdr, q) + (sig_hdr)->sig_base_offset + \
+ ((slot) * (sig_hdr)->signal_size))
/** Write the contents of a specific field within a SIGNAL_QUEUE_HEADER back
* into host memory
if (is_write) {
if (visor_memregion_write(channel->memregion,
signal_data_offset,
- data, sig_hdr->SignalSize) < 0) {
+ data, sig_hdr->signal_size) < 0) {
ERRDRV("visor_memregion_write of signal data failed: (status=%d)\n", rc);
goto Away;
}
} else {
if (visor_memregion_read(channel->memregion, signal_data_offset,
- data, sig_hdr->SignalSize) < 0) {
+ data, sig_hdr->signal_size) < 0) {
ERRDRV("visor_memregion_read of signal data failed: (status=%d)\n", rc);
goto Away;
}
struct signal_queue_header *punsafe_sqh,
u32 *phead, u32 *ptail)
{
- if ((*phead >= psafe_sqh->MaxSignalSlots)
- || (*ptail >= psafe_sqh->MaxSignalSlots)) {
+ if ((*phead >= psafe_sqh->max_slots)
+ || (*ptail >= psafe_sqh->max_slots)) {
/* Choose 0 or max, maybe based on current tail value */
*phead = 0;
*ptail = 0;
/* Sync with client as necessary */
- punsafe_sqh->Head = *phead;
- punsafe_sqh->Tail = *ptail;
+ punsafe_sqh->head = *phead;
+ punsafe_sqh->tail = *ptail;
ERRDRV("safe_sig_queue_validate: head = 0x%x, tail = 0x%x, MaxSlots = 0x%x",
- *phead, *ptail, psafe_sqh->MaxSignalSlots);
+ *phead, *ptail, psafe_sqh->max_slots);
return 0;
}
return 1;
rc = FALSE;
goto Away;
}
- if (sig_hdr.Head == sig_hdr.Tail) {
+ if (sig_hdr.head == sig_hdr.tail) {
rc = FALSE; /* no signals to remove */
goto Away;
}
- sig_hdr.Tail = (sig_hdr.Tail + 1) % sig_hdr.MaxSignalSlots;
- if (!sig_read_data(channel, queue, &sig_hdr, sig_hdr.Tail, msg)) {
+ sig_hdr.tail = (sig_hdr.tail + 1) % sig_hdr.max_slots;
+ if (!sig_read_data(channel, queue, &sig_hdr, sig_hdr.tail, msg)) {
ERRDRV("sig_read_data failed: (status=%d)\n", rc);
goto Away;
}
- sig_hdr.NumSignalsReceived++;
+ sig_hdr.num_received++;
/* For each data field in SIGNAL_QUEUE_HEADER that was modified,
* update host memory.
*/
mb(); /* required for channel synch */
- if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, Tail)) {
+ if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, tail)) {
ERRDRV("visor_memregion_write of Tail failed: (status=%d)\n",
rc);
goto Away;
}
- if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, NumSignalsReceived)) {
+ if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_received)) {
ERRDRV("visor_memregion_write of NumSignalsReceived failed: (status=%d)\n", rc);
goto Away;
}
goto Away;
}
- sig_hdr.Head = ((sig_hdr.Head + 1) % sig_hdr.MaxSignalSlots);
- if (sig_hdr.Head == sig_hdr.Tail) {
- sig_hdr.NumOverflows++;
- if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, NumOverflows)) {
+ sig_hdr.head = ((sig_hdr.head + 1) % sig_hdr.max_slots);
+ if (sig_hdr.head == sig_hdr.tail) {
+ sig_hdr.num_overflows++;
+ if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_overflows)) {
ERRDRV("visor_memregion_write of NumOverflows failed: (status=%d)\n", rc);
goto Away;
}
goto Away;
}
- if (!sig_write_data(channel, queue, &sig_hdr, sig_hdr.Head, msg)) {
+ if (!sig_write_data(channel, queue, &sig_hdr, sig_hdr.head, msg)) {
ERRDRV("sig_write_data failed: (status=%d)\n", rc);
goto Away;
}
- sig_hdr.NumSignalsSent++;
+ sig_hdr.num_sent++;
/* For each data field in SIGNAL_QUEUE_HEADER that was modified,
* update host memory.
*/
mb(); /* required for channel synch */
- if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, Head)) {
+ if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, head)) {
ERRDRV("visor_memregion_write of Head failed: (status=%d)\n",
rc);
goto Away;
}
- if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, NumSignalsSent)) {
+ if (!SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_sent)) {
ERRDRV("visor_memregion_write of NumSignalsSent failed: (status=%d)\n", rc);
goto Away;
}
if (!sig_read_header(channel, queue, &sig_hdr))
return 0;
- head = sig_hdr.Head;
- tail = sig_hdr.Tail;
+ head = sig_hdr.head;
+ tail = sig_hdr.tail;
if (head < tail)
- head = head + sig_hdr.MaxSignalSlots;
+ head = head + sig_hdr.max_slots;
slots_used = (head - tail);
- slots_avail = sig_hdr.MaxSignals - slots_used;
+ slots_avail = sig_hdr.max_signals - slots_used;
return (int) slots_avail;
}
EXPORT_SYMBOL_GPL(visorchannel_signalqueue_slots_avail);
if (!sig_read_header(channel, queue, &sig_hdr))
return 0;
- return (int) sig_hdr.MaxSignals;
+ return (int) sig_hdr.max_signals;
}
EXPORT_SYMBOL_GPL(visorchannel_signalqueue_max_slots);
sigqueue_debug(struct signal_queue_header *q, int which, struct seq_file *seq)
{
seq_printf(seq, "Signal Queue #%d\n", which);
- seq_printf(seq, " VersionId = %lu\n", (ulong) q->VersionId);
- seq_printf(seq, " Type = %lu\n", (ulong) q->Type);
+ seq_printf(seq, " VersionId = %lu\n", (ulong)q->version);
+ seq_printf(seq, " Type = %lu\n", (ulong)q->chtype);
seq_printf(seq, " oSignalBase = %llu\n",
- (long long) q->oSignalBase);
- seq_printf(seq, " SignalSize = %lu\n", (ulong) q->SignalSize);
+ (long long)q->sig_base_offset);
+ seq_printf(seq, " SignalSize = %lu\n", (ulong)q->signal_size);
seq_printf(seq, " MaxSignalSlots = %lu\n",
- (ulong) q->MaxSignalSlots);
- seq_printf(seq, " MaxSignals = %lu\n", (ulong) q->MaxSignals);
+ (ulong)q->max_slots);
+ seq_printf(seq, " MaxSignals = %lu\n", (ulong)q->max_signals);
seq_printf(seq, " FeatureFlags = %-16.16Lx\n",
- (long long) q->FeatureFlags);
+ (long long)q->features);
seq_printf(seq, " NumSignalsSent = %llu\n",
- (long long) q->NumSignalsSent);
+ (long long)q->num_sent);
seq_printf(seq, " NumSignalsReceived = %llu\n",
- (long long) q->NumSignalsReceived);
+ (long long)q->num_received);
seq_printf(seq, " NumOverflows = %llu\n",
- (long long) q->NumOverflows);
- seq_printf(seq, " Head = %lu\n", (ulong) q->Head);
- seq_printf(seq, " Tail = %lu\n", (ulong) q->Tail);
+ (long long)q->num_overflows);
+ seq_printf(seq, " Head = %lu\n", (ulong)q->head);
+ seq_printf(seq, " Tail = %lu\n", (ulong)q->tail);
}
void
projects / platform / kernel / linux-starfive.git / commitdiff