Merge branch 'cris' of git://www.jni.nu/cris

* 'cris' of git://www.jni.nu/cris: (158 commits)
  CRIS v32: Remove hwregs/timer_defs.h, it is now architecture specific.
  CRIS v32: Change drivers/i2c.c locking.
  CRIS v32: Rewrite ARTPEC-3 gpio driver to avoid volatiles and general cleanup.
  CRIS: Add new timerfd syscall entries.
  MAINTAINERS: Add my information for the CRIS port.
  CRIS v32: Correct spelling of bandwidth in function name.
  CRIS v32: Clean up nandflash.c for ARTPEC-3 and ETRAX FS.
  CRIS v10: Cleanup of drivers/gpio.c
  CRIS v10: drivers/net/cris/eth_v10.c rename LED defines to CRIS_LED to avoid name clash.
  CRIS: Make io_pwm_set_period members unsigned in etraxgpio.h
  CRIS: Move ETRAX_AXISFLASHMAP to common Kconfig file.
  CRIS: Drop regs parameter from call to profile_tick in kernel/time.c
  CRIS v32: Fix minor formatting issue in mach-a3/io.c
  CRIS v32: Initialize GIO even if we're rambooting in kernel/head.S
  CRIS v32: Remove kernel/arbiter.c, it now exists in machine dependent directory.
  CRIS v32: Minor changes to avoid errors in asm-cris/arch-v32/hwregs/reg_rdwr.h
  CRIS v32: arch-v32/hwregs/intr_vect_defs.h moved to machine dependent directory.
  CRIS v32: Correct offset for TASK_pid in asm-cris/arch-v32/offset.h
  CRIS v32: Move register map header to machine dependent directory.
  CRIS v32: Let compiler know that memory is clobbered after a break op.
  ...

1 files changed, 103 insertions, 0 deletions

diff --git a/arch/cris/arch-v32/mach-a3/vcs_hook.c b/arch/cris/arch-v32/mach-a3/vcs_hook.c
new file mode 100644
index 00000000000..58b1a5469fd
--- /dev/null
+++ b/arch/cris/arch-v32/mach-a3/vcs_hook.c
@@ -0,0 +1,103 @@
+/*
+ * Simulator hook mechanism
+ */
+
+#include "vcs_hook.h"
+#include <asm/io.h>
+#include <stdarg.h>
+
+#define HOOK_TRIG_ADDR      0xb7000000
+#define HOOK_MEM_BASE_ADDR  0xce000000
+
+static volatile unsigned *hook_base;
+
+#define HOOK_DATA(offset) hook_base[offset]
+#define VHOOK_DATA(offset) hook_base[offset]
+#define HOOK_TRIG(funcid) \
+	do { \
+		*((unsigned *) HOOK_TRIG_ADDR) = funcid; \
+	} while (0)
+#define HOOK_DATA_BYTE(offset) ((unsigned char *)hook_base)[offset]
+
+static void hook_init(void)
+{
+	static int first = 1;
+	if (first) {
+		first = 0;
+		hook_base = ioremap(HOOK_MEM_BASE_ADDR, 8192);
+	}
+}
+
+static unsigned hook_trig(unsigned id)
+{
+	unsigned ret;
+
+	/* preempt_disable(); */
+
+	/* Dummy read from mem to make sure data has propagated to memory
+	 * before trigging */
+	ret = *hook_base;
+
+	/* trigger hook */
+	HOOK_TRIG(id);
+
+	/* wait for call to finish */
+	while (VHOOK_DATA(0) > 0) ;
+
+	/* extract return value */
+
+	ret = VHOOK_DATA(1);
+
+	return ret;
+}
+
+int hook_call(unsigned id, unsigned pcnt, ...)
+{
+	va_list ap;
+	int i;
+	unsigned ret;
+
+	hook_init();
+
+	HOOK_DATA(0) = id;
+
+	va_start(ap, pcnt);
+	for (i = 1; i <= pcnt; i++)
+		HOOK_DATA(i) = va_arg(ap, unsigned);
+	va_end(ap);
+
+	ret = hook_trig(id);
+
+	return ret;
+}
+
+int hook_call_str(unsigned id, unsigned size, const char *str)
+{
+	int i;
+	unsigned ret;
+
+	hook_init();
+
+	HOOK_DATA(0) = id;
+	HOOK_DATA(1) = size;
+
+	for (i = 0; i < size; i++)
+		HOOK_DATA_BYTE(8 + i) = str[i];
+	HOOK_DATA_BYTE(8 + i) = 0;
+
+	ret = hook_trig(id);
+
+	return ret;
+}
+
+void print_str(const char *str)
+{
+	int i;
+	/* find null at end of string */
+	for (i = 1; str[i]; i++) ;
+	hook_call(hook_print_str, i, str);
+}
+
+void CPU_WATCHDOG_TIMEOUT(unsigned t)
+{
+}