* TODO: Note abstraction layer violation where "ocd reset" command

must invalidate the dcache, and how this might be fixed.

* monitor.c (#include "dcache.h"): Removed.
(remote_dcache): Removed.
(monitor_open): Removed code that created local dcache.
(flush_monitor_dcache): Removed (unused function).
(monitor_resume): Removed call to dcache_invd().
(monitor_load): Likewise.
(monitor_xfer_memory): Changed to call monitor_write_memory(),
monitor_write_memory_block(), and monitor_read_memory() instead
of dcache_xfer_memory().
* monitor.h (flush_monitor_dcache): Removed (unused function).
* ocd.c (#include "dcache.h"): Removed.
(ocd_dcache): Removed.
(ocd_open): Removed code that created local dcache.
(ocd_resume): Removed call to dcache_invd().
(ocd_xfer_memory): Changed to call ocd_write_bytes() and
ocd_read_bytes() instead of dcache_xfer_memory().
(bdm_reset_command): Invalidate target dcache.
* remote-bug.c (bug_load): Remove call to dcache_invd().
(bug_resume): Likewise.
(bug_settings): Remove dcache, readfunc, and writefunc fields
from initializer.
(bug_xfer_memory): Changed to call bug_read_memory() and
bug_write_memory() instead of dcache_xfer_memory().
* remote-nindy.c (#include "dcache.h"): Removed.
(nindy_dcache): Removed.
(nindy_open): Removed code that created local dcache.
(nindy_resume): Removed call to dcache_invd().
(nindy_load): Likewise.
(nindy_xfer_inferior_memory): Changed to call ninMemPut() and
ninMemGet() instead of dcache_xfer_memory().
* remote-sds.c (#include "dcache.h"): Removed.
(sds_dcache): Removed.
(sds_open): Removed code that created local dcache.
(sds_resume): Removed call to dcache_invd().
(sds_xfer_memory): Changed to call sds_write_bytes() and
sds_read_bytes() instead of dcache_xfer_memory().
* remote-utils.c (gr_open): Removed code that created local dcache.
* remote-utils.h (#include "dcache.h"): Removed.
(struct gr_settings): Removed dcache, readfunc, and writefunc fields.
(gr_get_dcache, gr_set_dcache): Removed macro definitions.
* remote.c (#include "dcache.h"): Removed.
(remote_dcache): Removed.
(remote_open_1): Removed code that created local dcache.
(remote_async_open_1): Likewise.
(remote_resume): Removed call to dcache_invd().
(remote_async_resume): Likewise.
(remote_xfer_memory): Changed to call remote_write_bytes() and
remote_read_bytes() instead of dcache_xfer_memory().
* wince.c (#include "dcache.h"): Removed.
(remote_dcache): Removed.
(child_create_inferior): Removed code that created local dcache.
(child_xfer_memory): Changed to call remote_write_bytes() and
remote_read_bytes() instead of dcache_xfer_memory().
(child_resume): Removed call to dcache_invd().

* target.c (target_dcache): Added.
(target_load): Invalidate target_dcache.
(do_xfer_memory): New function.
(target_xfer_memory): Reimplement in terms of dcache_xfer_memory().
(target_xfer_memory_partial): Likewise.
(initialize_targets): Create target_dcache.
* target.h (#include "dcache.h"): Added.
(target_open): Invalidate target_dcache.
(target_resume): Likewise.
(do_xfer_memory): New declaration.

* dcache.c (dcache_init): Removed reading and writing arguments.
(dcache_struct): Removed read_memory and write_memory fields.
(dcache_write_line): Call do_xfer_memory.
(dcache_read_line): Likewise.
(dcache_xfer_memory): Likewise.
(dcache_invalidate): Renamed from dcache_invd.
(dcache_init): Updated.
(dcache_xfer_memory): Updated.
* dcache.h (memxferfunc): Removed definition.

gdb/wince.c

@@ -54,7 +54,6 @@
 #include "gdbcmd.h"
 #include <sys/param.h>
 #include "wince-stub.h"
-#include "dcache.h"
 #include <time.h>
 
 /* The ui's event loop. */
@@ -89,8 +88,6 @@ extern int (*ui_loop_hook) (int signo);
 
 static int connection_initialized = 0;	/* True if we've initialized a RAPI session. */
 
-static DCACHE *remote_dcache;
-
 /* The directory where the stub and executable files are uploaded. */
 static const char *remote_directory = "\\gdb";
 
@@ -1729,10 +1726,6 @@ child_create_inferior (char *exec_file, char *args, char **env)
   flags = DEBUG_PROCESS;
 
   wince_initialize ();		/* Make sure we've got a connection. */
-  if (!remote_dcache)
-    remote_dcache = dcache_init (remote_read_bytes, remote_write_bytes);
-  else
-    dcache_invd (remote_dcache);
 
   exec_file = upload_to_device (exec_file, exec_file);
 
@@ -1798,7 +1791,13 @@ child_xfer_memory (CORE_ADDR memaddr, char *our, int len,
 {
   if (len <= 0)
     return 0;
-  return dcache_xfer_memory (remote_dcache, memaddr, our, len, write);
+
+  if (write)
+    res = remote_write_bytes (memaddr, our, len);
+  else
+    res = remote_read_bytes (memaddr, our, len);
+
+  return res;
 }
 
 /* Terminate the process and wait for child to tell us it has completed. */
@@ -1842,8 +1841,6 @@ child_resume (int pid, int step, enum target_signal sig)
       th->context.ContextFlags = 0;
     }
 
-  dcache_invd (remote_dcache);
-
   /* Allow continuing with the same signal that interrupted us.
      Otherwise complain. */
   if (sig && sig != last_sig)