CRIS v32: Change lib/spinlock.S to use byte operations instead of dwords.

arch/cris/arch-v32/kernel/vcs_hook.c

-// $Id: vcs_hook.c,v 1.2 2003/08/12 12:01:06 starvik Exp $
-//
-// Call simulator hook. This is the part running in the
-// simulated program.
-//
-
-#include "vcs_hook.h"
-#include <stdarg.h>
-#include <asm/arch-v32/hwregs/reg_map.h>
-#include <asm/arch-v32/hwregs/intr_vect_defs.h>
-
-#define HOOK_TRIG_ADDR     0xb7000000   /* hook cvlog model reg address */
-#define HOOK_MEM_BASE_ADDR 0xa0000000   /* csp4 (shared mem) base addr */
-
-#define HOOK_DATA(offset) ((unsigned*) HOOK_MEM_BASE_ADDR)[offset]
-#define VHOOK_DATA(offset) ((volatile unsigned*) HOOK_MEM_BASE_ADDR)[offset]
-#define HOOK_TRIG(funcid) do { *((unsigned *) HOOK_TRIG_ADDR) = funcid; } while(0)
-#define HOOK_DATA_BYTE(offset) ((unsigned char*) HOOK_MEM_BASE_ADDR)[offset]
-
-
-// ------------------------------------------------------------------ hook_call
-int hook_call( unsigned id, unsigned pcnt, ...) {
-  va_list ap;
-  unsigned i;
-  unsigned ret;
-#ifdef USING_SOS
-  PREEMPT_OFF_SAVE();
-#endif
-
-  // pass parameters
-  HOOK_DATA(0) = id;
-
-  /* Have to make hook_print_str a special case since we call with a
-     parameter of byte type. Should perhaps be a separate
-     hook_call. */
-
-  if (id == hook_print_str) {
-    int i;
-    char *str;
-
-    HOOK_DATA(1) = pcnt;
-
-    va_start(ap, pcnt);
-    str = (char*)va_arg(ap,unsigned);
-
-    for (i=0; i!=pcnt; i++) {
-      HOOK_DATA_BYTE(8+i) = str[i];
-    }
-    HOOK_DATA_BYTE(8+i) = 0;	/* null byte */
-  }
-  else {
-    va_start(ap, pcnt);
-    for( i = 1; i <= pcnt; i++ ) HOOK_DATA(i) = va_arg(ap,unsigned);
-    va_end(ap);
-  }
-
-  // read from mem to make sure data has propagated to memory before trigging
-  *((volatile unsigned*) HOOK_MEM_BASE_ADDR);
-
-  // trigger hook
-  HOOK_TRIG(id);
-
-  // wait for call to finish
-  while( VHOOK_DATA(0) > 0 ) {}
-
-  // extract return value
-
-  ret = VHOOK_DATA(1);
-
-#ifdef USING_SOS
-  PREEMPT_RESTORE();
-#endif
-  return ret;
-}
-
-unsigned
-hook_buf(unsigned i)
-{
-  return (HOOK_DATA(i));
-}
-
-void print_str( const char *str ) {
-  int i;
-  for (i=1; str[i]; i++);         /* find null at end of string */
-  hook_call(hook_print_str, i, str);
-}
-
-// --------------------------------------------------------------- CPU_KICK_DOG
-void CPU_KICK_DOG(void) {
-  (void) hook_call( hook_kick_dog, 0 );
-}
-
-// ------------------------------------------------------- CPU_WATCHDOG_TIMEOUT
-void CPU_WATCHDOG_TIMEOUT( unsigned t ) {
-  (void) hook_call( hook_dog_timeout, 1, t );
-}

arch/cris/arch-v32/kernel/vcs_hook.h

-// $Id: vcs_hook.h,v 1.1 2003/08/12 12:01:06 starvik Exp $
-//
-// Call simulator hook functions
-
-#ifndef HOOK_H
-#define HOOK_H
-
-int hook_call( unsigned id, unsigned pcnt, ...);
-
-enum hook_ids {
-  hook_debug_on = 1,
-  hook_debug_off,
-  hook_stop_sim_ok,
-  hook_stop_sim_fail,
-  hook_alloc_shared,
-  hook_ptr_shared,
-  hook_free_shared,
-  hook_file2shared,
-  hook_cmp_shared,
-  hook_print_params,
-  hook_sim_time,
-  hook_stop_sim,
-  hook_kick_dog,
-  hook_dog_timeout,
-  hook_rand,
-  hook_srand,
-  hook_rand_range,
-  hook_print_str,
-  hook_print_hex,
-  hook_cmp_offset_shared,
-  hook_fill_random_shared,
-  hook_alloc_random_data,
-  hook_calloc_random_data,
-  hook_print_int,
-  hook_print_uint,
-  hook_fputc,
-  hook_init_fd,
-  hook_sbrk
-
-};
-
-#endif

arch/cris/arch-v32/lib/spinlock.S

@@ -12,11 +12,11 @@
 
 cris_spin_lock:
 	clearf	p
-1:	test.d	[$r10]
+1:	test.b	[$r10]
 	beq	1b
 	clearf	p
 	ax
-	clear.d [$r10]
+	clear.b [$r10]
 	bcs     1b
 	clearf	p
 	ret
@@ -24,10 +24,10 @@ cris_spin_lock:
 
 cris_spin_trylock:
 	clearf	p
-1:	move.d	[$r10], $r11
+1:	move.b	[$r10], $r11
 	ax
-	clear.d [$r10]
+	clear.b [$r10]
         bcs	1b
         clearf	p
 	ret
-	move.d	$r11,$r10
+	movu.b	$r11,$r10