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path: root/drivers/s390/cio/qdio.h
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Diffstat (limited to 'drivers/s390/cio/qdio.h')
-rw-r--r--drivers/s390/cio/qdio.h224
1 files changed, 61 insertions, 163 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 1245693..ec9af72 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -12,10 +12,6 @@
#endif /* CONFIG_QDIO_DEBUG */
#define QDIO_USE_PROCESSING_STATE
-#ifdef CONFIG_QDIO_PERF_STATS
-#define QDIO_PERFORMANCE_STATS
-#endif /* CONFIG_QDIO_PERF_STATS */
-
#define QDIO_MINIMAL_BH_RELIEF_TIME 16
#define QDIO_TIMER_POLL_VALUE 1
#define IQDIO_TIMER_POLL_VALUE 1
@@ -236,7 +232,7 @@ enum qdio_irq_states {
#define QDIO_PRINT_EMERG(x...) do { } while (0)
#endif
-#define HEXDUMP16(importance,header,ptr) \
+#define QDIO_HEXDUMP16(importance,header,ptr) \
QDIO_PRINT_##importance(header "%02x %02x %02x %02x " \
"%02x %02x %02x %02x %02x %02x %02x %02x " \
"%02x %02x %02x %02x\n",*(((char*)ptr)), \
@@ -274,12 +270,11 @@ do_sqbs(unsigned long sch, unsigned char state, int queue,
register unsigned long _sch asm ("1") = sch;
unsigned long _queuestart = ((unsigned long)queue << 32) | *start;
- asm volatile (
- " .insn rsy,0xeb000000008A,%1,0,0(%2)\n\t"
- : "+d" (_ccq), "+d" (_queuestart)
- : "d" ((unsigned long)state), "d" (_sch)
- : "memory", "cc"
- );
+ asm volatile(
+ " .insn rsy,0xeb000000008A,%1,0,0(%2)"
+ : "+d" (_ccq), "+d" (_queuestart)
+ : "d" ((unsigned long)state), "d" (_sch)
+ : "memory", "cc");
*count = _ccq & 0xff;
*start = _queuestart & 0xff;
@@ -299,12 +294,11 @@ do_eqbs(unsigned long sch, unsigned char *state, int queue,
unsigned long _queuestart = ((unsigned long)queue << 32) | *start;
unsigned long _state = 0;
- asm volatile (
- " .insn rrf,0xB99c0000,%1,%2,0,0 \n\t"
- : "+d" (_ccq), "+d" (_queuestart), "+d" (_state)
- : "d" (_sch)
- : "memory", "cc"
- );
+ asm volatile(
+ " .insn rrf,0xB99c0000,%1,%2,0,0"
+ : "+d" (_ccq), "+d" (_queuestart), "+d" (_state)
+ : "d" (_sch)
+ : "memory", "cc" );
*count = _ccq & 0xff;
*start = _queuestart & 0xff;
*state = _state & 0xff;
@@ -319,69 +313,35 @@ do_eqbs(unsigned long sch, unsigned char *state, int queue,
static inline int
do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2)
{
+ register unsigned long reg0 asm ("0") = 2;
+ register struct subchannel_id reg1 asm ("1") = schid;
+ register unsigned long reg2 asm ("2") = mask1;
+ register unsigned long reg3 asm ("3") = mask2;
int cc;
-#ifndef CONFIG_64BIT
- asm volatile (
- "lhi 0,2 \n\t"
- "lr 1,%1 \n\t"
- "lr 2,%2 \n\t"
- "lr 3,%3 \n\t"
- "siga 0 \n\t"
- "ipm %0 \n\t"
- "srl %0,28 \n\t"
- : "=d" (cc)
- : "d" (schid), "d" (mask1), "d" (mask2)
- : "cc", "0", "1", "2", "3"
- );
-#else /* CONFIG_64BIT */
- asm volatile (
- "lghi 0,2 \n\t"
- "llgfr 1,%1 \n\t"
- "llgfr 2,%2 \n\t"
- "llgfr 3,%3 \n\t"
- "siga 0 \n\t"
- "ipm %0 \n\t"
- "srl %0,28 \n\t"
+ asm volatile(
+ " siga 0\n"
+ " ipm %0\n"
+ " srl %0,28\n"
: "=d" (cc)
- : "d" (schid), "d" (mask1), "d" (mask2)
- : "cc", "0", "1", "2", "3"
- );
-#endif /* CONFIG_64BIT */
+ : "d" (reg0), "d" (reg1), "d" (reg2), "d" (reg3) : "cc");
return cc;
}
static inline int
do_siga_input(struct subchannel_id schid, unsigned int mask)
{
+ register unsigned long reg0 asm ("0") = 1;
+ register struct subchannel_id reg1 asm ("1") = schid;
+ register unsigned long reg2 asm ("2") = mask;
int cc;
-#ifndef CONFIG_64BIT
- asm volatile (
- "lhi 0,1 \n\t"
- "lr 1,%1 \n\t"
- "lr 2,%2 \n\t"
- "siga 0 \n\t"
- "ipm %0 \n\t"
- "srl %0,28 \n\t"
+ asm volatile(
+ " siga 0\n"
+ " ipm %0\n"
+ " srl %0,28\n"
: "=d" (cc)
- : "d" (schid), "d" (mask)
- : "cc", "0", "1", "2", "memory"
- );
-#else /* CONFIG_64BIT */
- asm volatile (
- "lghi 0,1 \n\t"
- "llgfr 1,%1 \n\t"
- "llgfr 2,%2 \n\t"
- "siga 0 \n\t"
- "ipm %0 \n\t"
- "srl %0,28 \n\t"
- : "=d" (cc)
- : "d" (schid), "d" (mask)
- : "cc", "0", "1", "2", "memory"
- );
-#endif /* CONFIG_64BIT */
-
+ : "d" (reg0), "d" (reg1), "d" (reg2) : "cc", "memory");
return cc;
}
@@ -389,93 +349,35 @@ static inline int
do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb,
unsigned int fc)
{
+ register unsigned long __fc asm("0") = fc;
+ register unsigned long __schid asm("1") = schid;
+ register unsigned long __mask asm("2") = mask;
int cc;
- __u32 busy_bit;
-
-#ifndef CONFIG_64BIT
- asm volatile (
- "lhi 0,0 \n\t"
- "lr 1,%2 \n\t"
- "lr 2,%3 \n\t"
- "siga 0 \n\t"
- "0:"
- "ipm %0 \n\t"
- "srl %0,28 \n\t"
- "srl 0,31 \n\t"
- "lr %1,0 \n\t"
- "1: \n\t"
- ".section .fixup,\"ax\"\n\t"
- "2: \n\t"
- "lhi %0,%4 \n\t"
- "bras 1,3f \n\t"
- ".long 1b \n\t"
- "3: \n\t"
- "l 1,0(1) \n\t"
- "br 1 \n\t"
- ".previous \n\t"
- ".section __ex_table,\"a\"\n\t"
- ".align 4 \n\t"
- ".long 0b,2b \n\t"
- ".previous \n\t"
- : "=d" (cc), "=d" (busy_bit)
- : "d" (schid), "d" (mask),
- "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
- : "cc", "0", "1", "2", "memory"
- );
-#else /* CONFIG_64BIT */
- asm volatile (
- "llgfr 0,%5 \n\t"
- "lgr 1,%2 \n\t"
- "llgfr 2,%3 \n\t"
- "siga 0 \n\t"
- "0:"
- "ipm %0 \n\t"
- "srl %0,28 \n\t"
- "srl 0,31 \n\t"
- "llgfr %1,0 \n\t"
- "1: \n\t"
- ".section .fixup,\"ax\"\n\t"
- "lghi %0,%4 \n\t"
- "jg 1b \n\t"
- ".previous\n\t"
- ".section __ex_table,\"a\"\n\t"
- ".align 8 \n\t"
- ".quad 0b,1b \n\t"
- ".previous \n\t"
- : "=d" (cc), "=d" (busy_bit)
- : "d" (schid), "d" (mask),
- "i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION), "d" (fc)
- : "cc", "0", "1", "2", "memory"
- );
-#endif /* CONFIG_64BIT */
-
- (*bb) = busy_bit;
+
+ asm volatile(
+ " siga 0\n"
+ "0: ipm %0\n"
+ " srl %0,28\n"
+ "1:\n"
+ EX_TABLE(0b,1b)
+ : "=d" (cc), "+d" (__fc), "+d" (__schid), "+d" (__mask)
+ : "0" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
+ : "cc", "memory");
+ (*bb) = ((unsigned int) __fc) >> 31;
return cc;
}
static inline unsigned long
do_clear_global_summary(void)
{
-
- unsigned long time;
-
-#ifndef CONFIG_64BIT
- asm volatile (
- "lhi 1,3 \n\t"
- ".insn rre,0xb2650000,2,0 \n\t"
- "lr %0,3 \n\t"
- : "=d" (time) : : "cc", "1", "2", "3"
- );
-#else /* CONFIG_64BIT */
- asm volatile (
- "lghi 1,3 \n\t"
- ".insn rre,0xb2650000,2,0 \n\t"
- "lgr %0,3 \n\t"
- : "=d" (time) : : "cc", "1", "2", "3"
- );
-#endif /* CONFIG_64BIT */
-
- return time;
+ register unsigned long __fn asm("1") = 3;
+ register unsigned long __tmp asm("2");
+ register unsigned long __time asm("3");
+
+ asm volatile(
+ " .insn rre,0xb2650000,2,0"
+ : "+d" (__fn), "=d" (__tmp), "=d" (__time));
+ return __time;
}
/*
@@ -503,27 +405,23 @@ do_clear_global_summary(void)
#define CHSC_FLAG_SIGA_SYNC_DONE_ON_THININTS 0x08
#define CHSC_FLAG_SIGA_SYNC_DONE_ON_OUTB_PCIS 0x04
-#ifdef QDIO_PERFORMANCE_STATS
struct qdio_perf_stats {
- unsigned int tl_runs;
+ unsigned long tl_runs;
- unsigned int siga_outs;
- unsigned int siga_ins;
- unsigned int siga_syncs;
- unsigned int pcis;
- unsigned int thinints;
- unsigned int fast_reqs;
+ unsigned long siga_outs;
+ unsigned long siga_ins;
+ unsigned long siga_syncs;
+ unsigned long pcis;
+ unsigned long thinints;
+ unsigned long fast_reqs;
__u64 start_time_outbound;
- unsigned int outbound_cnt;
- unsigned int outbound_time;
+ unsigned long outbound_cnt;
+ unsigned long outbound_time;
__u64 start_time_inbound;
- unsigned int inbound_cnt;
- unsigned int inbound_time;
+ unsigned long inbound_cnt;
+ unsigned long inbound_time;
};
-#endif /* QDIO_PERFORMANCE_STATS */
-
-#define atomic_swap(a,b) xchg((int*)a.counter,b)
/* unlikely as the later the better */
#define SYNC_MEMORY if (unlikely(q->siga_sync)) qdio_siga_sync_q(q)
generated by cgit v0.10.2 at 2024-11-09 18:04:32 (GMT)