Print this page
de-linting of .s files
@@ -20,16 +20,11 @@
*/
/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
*/
-#if defined(lint)
-#include <sys/types.h>
-#include <sys/thread.h>
-#else /* lint */
#include "assym.h"
-#endif /* lint */
#include <sys/cmn_err.h>
#include <sys/ftrace.h>
#include <sys/asm_linkage.h>
#include <sys/machthread.h>
@@ -39,20 +34,11 @@
#ifdef TRAPTRACE
#include <sys/traptrace.h>
#endif /* TRAPTRACE */
-#if defined(lint)
-/* ARGSUSED */
-void
-pil_interrupt(int level)
-{}
-
-#else /* lint */
-
-
/*
* (TT 0x40..0x4F, TL>0) Interrupt Level N Handler (N == 1..15)
* Register passed from LEVEL_INTERRUPT(level)
* %g4 - interrupt request level
*/
@@ -158,14 +144,11 @@
ba,pt %xcc, sys_trap
or %g1, %lo(current_thread), %g1
SET_SIZE(pil_interrupt_common)
SET_SIZE(pil_interrupt)
-#endif /* lint */
-
-#ifndef lint
_spurious:
.asciz "!interrupt 0x%x at level %d not serviced"
/*
* SERVE_INTR_PRE is called once, just before the first invocation
@@ -327,21 +310,10 @@
wrpr %g0, os4, %pstate
#else /* TRAPTRACE */
#define SERVE_INTR_TRACE2(inum, os1, os2, os3, os4)
#endif /* TRAPTRACE */
-#endif /* lint */
-
-#if defined(lint)
-
-/*ARGSUSED*/
-void
-intr_thread(struct regs *regs, uint64_t iv_p, uint_t pil)
-{}
-
-#else /* lint */
-
#define INTRCNT_LIMIT 16
/*
* Handle an interrupt in a new thread.
* Entry:
@@ -890,43 +862,11 @@
intr_thread_exit_actv_bit_set:
.asciz "intr_thread_exit(): cpu_intr_actv bit erroneously set for PIL"
intr_thread_t_intr_start_zero:
.asciz "intr_thread(): t_intr_start zero upon handler return"
#endif /* DEBUG */
-#endif /* lint */
-#if defined(lint)
-
-/*
- * Handle an interrupt in the current thread
- * Entry:
- * %o0 = pointer to regs structure
- * %o1 = pointer to current intr_vec_t (iv) to be processed
- * %o2 = pil
- * %sp = on current thread's kernel stack
- * %o7 = return linkage to trap code
- * %g7 = current thread
- * %pstate = normal globals, interrupts enabled,
- * privileged, fp disabled
- * %pil = PIL_MAX
- *
- * Register Usage
- * %l0 = return linkage
- * %l1 = old stack
- * %l2 - %l3 = scratch
- * %l4 - %l7 = reserved for sys_trap
- * %o3 = cpu
- * %o0 = scratch
- * %o4 - %o5 = scratch
- */
-/* ARGSUSED */
-void
-current_thread(struct regs *regs, uint64_t iv_p, uint_t pil)
-{}
-
-#else /* lint */
-
ENTRY_NP(current_thread)
mov %o7, %l0
ldn [THREAD_REG + T_CPU], %o3
@@ -1396,11 +1336,10 @@
current_thread_timestamp_zero:
.asciz "current_thread(): timestamp zero upon handler return"
current_thread_nested_PIL_not_found:
.asciz "current_thread: couldn't find nested high-level PIL"
#endif /* DEBUG */
-#endif /* lint */
/*
* Return a thread's interrupt level.
* Since this isn't saved anywhere but in %l4 on interrupt entry, we
* must dig it out of the save area.
@@ -1410,101 +1349,38 @@
* int
* intr_level(t)
* kthread_id_t t;
*/
-#if defined(lint)
-
-/* ARGSUSED */
-int
-intr_level(kthread_id_t t)
-{ return (0); }
-
-#else /* lint */
-
ENTRY_NP(intr_level)
retl
ldub [%o0 + T_PIL], %o0 ! return saved pil
SET_SIZE(intr_level)
-#endif /* lint */
-
-#if defined(lint)
-
-/* ARGSUSED */
-int
-disable_pil_intr()
-{ return (0); }
-
-#else /* lint */
-
ENTRY_NP(disable_pil_intr)
rdpr %pil, %o0
retl
wrpr %g0, PIL_MAX, %pil ! disable interrupts (1-15)
SET_SIZE(disable_pil_intr)
-#endif /* lint */
-
-#if defined(lint)
-
-/* ARGSUSED */
-void
-enable_pil_intr(int pil_save)
-{}
-
-#else /* lint */
-
ENTRY_NP(enable_pil_intr)
retl
wrpr %o0, %pil
SET_SIZE(enable_pil_intr)
-#endif /* lint */
-
-#if defined(lint)
-
-/* ARGSUSED */
-uint_t
-disable_vec_intr(void)
-{ return (0); }
-
-#else /* lint */
-
ENTRY_NP(disable_vec_intr)
rdpr %pstate, %o0
andn %o0, PSTATE_IE, %g1
retl
wrpr %g0, %g1, %pstate ! disable interrupt
SET_SIZE(disable_vec_intr)
-#endif /* lint */
-
-#if defined(lint)
-
-/* ARGSUSED */
-void
-enable_vec_intr(uint_t pstate_save)
-{}
-
-#else /* lint */
-
ENTRY_NP(enable_vec_intr)
retl
wrpr %g0, %o0, %pstate
SET_SIZE(enable_vec_intr)
-#endif /* lint */
-
-#if defined(lint)
-
-void
-cbe_level14(void)
-{}
-
-#else /* lint */
-
ENTRY_NP(cbe_level14)
save %sp, -SA(MINFRAME), %sp ! get a new window
!
! Make sure that this is from TICK_COMPARE; if not just return
!
@@ -1520,22 +1396,11 @@
2:
ret
restore %g0, 1, %o0
SET_SIZE(cbe_level14)
-#endif /* lint */
-
-#if defined(lint)
-
-/* ARGSUSED */
-void
-kdi_setsoftint(uint64_t iv_p)
-{}
-
-#else /* lint */
-
ENTRY_NP(kdi_setsoftint)
save %sp, -SA(MINFRAME), %sp ! get a new window
rdpr %pstate, %l5
andn %l5, PSTATE_IE, %l1
wrpr %l1, %pstate ! disable interrupt
@@ -1605,21 +1470,10 @@
wrpr %g0, %l5, %pstate ! %pstate = saved %pstate (in %l5)
ret
restore
SET_SIZE(kdi_setsoftint)
-#endif /* lint */
-
-#if defined(lint)
-
-/*ARGSUSED*/
-void
-setsoftint_tl1(uint64_t iv_p, uint64_t dummy)
-{}
-
-#else /* lint */
-
!
! Register usage
! Arguments:
! %g1 - Pointer to intr_vec_t (iv)
!
@@ -1700,21 +1554,10 @@
sll %g5, %g2, %g5 ! %g5 = 1 << pil
wr %g5, SET_SOFTINT ! trigger required pil softint
retry
SET_SIZE(setsoftint_tl1)
-#endif /* lint */
-
-#if defined(lint)
-
-/*ARGSUSED*/
-void
-setvecint_tl1(uint64_t inum, uint64_t dummy)
-{}
-
-#else /* lint */
-
!
! Register usage
! Arguments:
! %g1 - inumber
!
@@ -1843,37 +1686,15 @@
set no_ivintr, %g1
ba,pt %xcc, sys_trap
mov PIL_15, %g4
SET_SIZE(setvecint_tl1)
-#endif /* lint */
-
-#if defined(lint)
-
-/*ARGSUSED*/
-void
-wr_clr_softint(uint_t value)
-{}
-
-#else
-
ENTRY_NP(wr_clr_softint)
retl
wr %o0, CLEAR_SOFTINT
SET_SIZE(wr_clr_softint)
-#endif /* lint */
-
-#if defined(lint)
-
-/*ARGSUSED*/
-void
-intr_enqueue_req(uint_t pil, uint64_t inum)
-{}
-
-#else /* lint */
-
/*
* intr_enqueue_req
*
* %o0 - pil
* %o1 - pointer to intr_vec_t (iv)
@@ -1919,25 +1740,15 @@
3:
retl
nop
SET_SIZE(intr_enqueue_req)
-#endif /* lint */
-
/*
* Set CPU's base SPL level, based on which interrupt levels are active.
* Called at spl7 or above.
*/
-#if defined(lint)
-
-void
-set_base_spl(void)
-{}
-
-#else /* lint */
-
ENTRY_NP(set_base_spl)
ldn [THREAD_REG + T_CPU], %o2 ! load CPU pointer
ld [%o2 + CPU_INTR_ACTV], %o5 ! load active interrupts mask
/*
@@ -1984,28 +1795,17 @@
_intr_flag_table:
.byte 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4
.byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
.align 4
-#endif /* lint */
-
/*
* int
* intr_passivate(from, to)
* kthread_id_t from; interrupt thread
* kthread_id_t to; interrupted thread
*/
-#if defined(lint)
-
-/* ARGSUSED */
-int
-intr_passivate(kthread_id_t from, kthread_id_t to)
-{ return (0); }
-
-#else /* lint */
-
ENTRY_NP(intr_passivate)
save %sp, -SA(MINFRAME), %sp ! get a new window
flushw ! force register windows to stack
!
@@ -2058,81 +1858,10 @@
ldub [%i0 + T_PIL], %i0
ret
restore
SET_SIZE(intr_passivate)
-#endif /* lint */
-
-#if defined(lint)
-
-/*
- * intr_get_time() is a resource for interrupt handlers to determine how
- * much time has been spent handling the current interrupt. Such a function
- * is needed because higher level interrupts can arrive during the
- * processing of an interrupt, thus making direct comparisons of %tick by
- * the handler inaccurate. intr_get_time() only returns time spent in the
- * current interrupt handler.
- *
- * The caller must be calling from an interrupt handler running at a pil
- * below or at lock level. Timings are not provided for high-level
- * interrupts.
- *
- * The first time intr_get_time() is called while handling an interrupt,
- * it returns the time since the interrupt handler was invoked. Subsequent
- * calls will return the time since the prior call to intr_get_time(). Time
- * is returned as ticks, adjusted for any clock divisor due to power
- * management. Use tick2ns() to convert ticks to nsec. Warning: ticks may
- * not be the same across CPUs.
- *
- * Theory Of Intrstat[][]:
- *
- * uint64_t intrstat[pil][0..1] is an array indexed by pil level, with two
- * uint64_ts per pil.
- *
- * intrstat[pil][0] is a cumulative count of the number of ticks spent
- * handling all interrupts at the specified pil on this CPU. It is
- * exported via kstats to the user.
- *
- * intrstat[pil][1] is always a count of ticks less than or equal to the
- * value in [0]. The difference between [1] and [0] is the value returned
- * by a call to intr_get_time(). At the start of interrupt processing,
- * [0] and [1] will be equal (or nearly so). As the interrupt consumes
- * time, [0] will increase, but [1] will remain the same. A call to
- * intr_get_time() will return the difference, then update [1] to be the
- * same as [0]. Future calls will return the time since the last call.
- * Finally, when the interrupt completes, [1] is updated to the same as [0].
- *
- * Implementation:
- *
- * intr_get_time() works much like a higher level interrupt arriving. It
- * "checkpoints" the timing information by incrementing intrstat[pil][0]
- * to include elapsed running time, and by setting t_intr_start to %tick.
- * It then sets the return value to intrstat[pil][0] - intrstat[pil][1],
- * and updates intrstat[pil][1] to be the same as the new value of
- * intrstat[pil][0].
- *
- * In the normal handling of interrupts, after an interrupt handler returns
- * and the code in intr_thread() updates intrstat[pil][0], it then sets
- * intrstat[pil][1] to the new value of intrstat[pil][0]. When [0] == [1],
- * the timings are reset, i.e. intr_get_time() will return [0] - [1] which
- * is 0.
- *
- * Whenever interrupts arrive on a CPU which is handling a lower pil
- * interrupt, they update the lower pil's [0] to show time spent in the
- * handler that they've interrupted. This results in a growing discrepancy
- * between [0] and [1], which is returned the next time intr_get_time() is
- * called. Time spent in the higher-pil interrupt will not be returned in
- * the next intr_get_time() call from the original interrupt, because
- * the higher-pil interrupt's time is accumulated in intrstat[higherpil][].
- */
-
-/*ARGSUSED*/
-uint64_t
-intr_get_time(void)
-{ return 0; }
-#else /* lint */
-
ENTRY_NP(intr_get_time)
#ifdef DEBUG
!
! Lots of asserts, but just check panic_quiesce first.
! Don't bother with lots of tests if we're just ignoring them.
@@ -2237,6 +1966,5 @@
intr_get_time_not_intr:
.asciz "intr_get_time(): not called from an interrupt thread"
intr_get_time_no_start_time:
.asciz "intr_get_time(): t_intr_start == 0"
#endif /* DEBUG */
-#endif /* lint */