1 files changed, 0 insertions, 124 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/kernel/windows.c b/ANDROID_3.4.5/arch/sparc/kernel/windows.c
deleted file mode 100644
index 3107381e..00000000
--- a/ANDROID_3.4.5/arch/sparc/kernel/windows.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/* windows.c: Routines to deal with register window management
- *            at the C-code level.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-
-#include <asm/uaccess.h>
-
-/* Do save's until all user register windows are out of the cpu. */
-void flush_user_windows(void)
-{
-	register int ctr asm("g5");
-
-	ctr = 0;
-	__asm__ __volatile__(
-		"\n1:\n\t"
-		"ld	[%%g6 + %2], %%g4\n\t"
-		"orcc	%%g0, %%g4, %%g0\n\t"
-		"add	%0, 1, %0\n\t"
-		"bne	1b\n\t"
-		" save	%%sp, -64, %%sp\n"
-		"2:\n\t"
-		"subcc	%0, 1, %0\n\t"
-		"bne	2b\n\t"
-		" restore %%g0, %%g0, %%g0\n"
-	: "=&r" (ctr)
-	: "0" (ctr),
-	  "i" ((const unsigned long)TI_UWINMASK)
-	: "g4", "cc");
-}
-
-static inline void shift_window_buffer(int first_win, int last_win, struct thread_info *tp)
-{
-	int i;
-
-	for(i = first_win; i < last_win; i++) {
-		tp->rwbuf_stkptrs[i] = tp->rwbuf_stkptrs[i+1];
-		memcpy(&tp->reg_window[i], &tp->reg_window[i+1], sizeof(struct reg_window32));
-	}
-}
-
-/* Place as many of the user's current register windows 
- * on the stack that we can.  Even if the %sp is unaligned
- * we still copy the window there, the only case that we don't
- * succeed is if the %sp points to a bum mapping altogether.
- * setup_frame() and do_sigreturn() use this before shifting
- * the user stack around.  Future instruction and hardware
- * bug workaround routines will need this functionality as
- * well.
- */
-void synchronize_user_stack(void)
-{
-	struct thread_info *tp = current_thread_info();
-	int window;
-
-	flush_user_windows();
-	if(!tp->w_saved)
-		return;
-
-	/* Ok, there is some dirty work to do. */
-	for(window = tp->w_saved - 1; window >= 0; window--) {
-		unsigned long sp = tp->rwbuf_stkptrs[window];
-
-		/* Ok, let it rip. */
-		if (copy_to_user((char __user *) sp, &tp->reg_window[window],
-				 sizeof(struct reg_window32)))
-			continue;
-
-		shift_window_buffer(window, tp->w_saved - 1, tp);
-		tp->w_saved--;
-	}
-}
-
-#if 0
-/* An optimization. */
-static inline void copy_aligned_window(void *dest, const void *src)
-{
-	__asm__ __volatile__("ldd [%1], %%g2\n\t"
-			     "ldd [%1 + 0x8], %%g4\n\t"
-			     "std %%g2, [%0]\n\t"
-			     "std %%g4, [%0 + 0x8]\n\t"
-			     "ldd [%1 + 0x10], %%g2\n\t"
-			     "ldd [%1 + 0x18], %%g4\n\t"
-			     "std %%g2, [%0 + 0x10]\n\t"
-			     "std %%g4, [%0 + 0x18]\n\t"
-			     "ldd [%1 + 0x20], %%g2\n\t"
-			     "ldd [%1 + 0x28], %%g4\n\t"
-			     "std %%g2, [%0 + 0x20]\n\t"
-			     "std %%g4, [%0 + 0x28]\n\t"
-			     "ldd [%1 + 0x30], %%g2\n\t"
-			     "ldd [%1 + 0x38], %%g4\n\t"
-			     "std %%g2, [%0 + 0x30]\n\t"
-			     "std %%g4, [%0 + 0x38]\n\t" : :
-			     "r" (dest), "r" (src) :
-			     "g2", "g3", "g4", "g5");
-}
-#endif
-
-/* Try to push the windows in a threads window buffer to the
- * user stack.  Unaligned %sp's are not allowed here.
- */
-
-void try_to_clear_window_buffer(struct pt_regs *regs, int who)
-{
-	struct thread_info *tp = current_thread_info();
-	int window;
-
-	flush_user_windows();
-	for(window = 0; window < tp->w_saved; window++) {
-		unsigned long sp = tp->rwbuf_stkptrs[window];
-
-		if ((sp & 7) ||
-		    copy_to_user((char __user *) sp, &tp->reg_window[window],
-				 sizeof(struct reg_window32)))
-			do_exit(SIGILL);
-	}
-	tp->w_saved = 0;
-}