diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/memset.c linux-2.6.19.2/arch/cris/arch-v10/lib/memset.c
---- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/memset.c 2007-05-20 01:46:35.000000000 +0200
-+++ linux-2.6.19.2/arch/cris/arch-v10/lib/memset.c 2007-05-20 01:51:47.000000000 +0200
-@@ -29,224 +29,21 @@
-
- #include <linux/types.h>
-
--/* No, there's no macro saying 12*4, since it is "hard" to get it into
-- the asm in a good way. Thus better to expose the problem everywhere.
-- */
-
--/* Assuming 1 cycle per dword written or read (ok, not really true), and
-- one per instruction, then 43+3*(n/48-1) <= 24+24*(n/48-1)
-- so n >= 45.7; n >= 0.9; we win on the first full 48-byte block to set. */
--
--#define ZERO_BLOCK_SIZE (1*12*4)
--
--void *memset(void *pdst,
-- int c,
-- size_t plen)
-+/**
-+ * memset - Fill a region of memory with the given value
-+ * @s: Pointer to the start of the area.
-+ * @c: The byte to fill the area with
-+ * @count: The size of the area.
-+ *
-+ * Do not use memset() to access IO space, use memset_io() instead.
-+ */
-+void *memset(void *s, int c, size_t count)
- {
-- /* Ok. Now we want the parameters put in special registers.
-- Make sure the compiler is able to make something useful of this. */
--
-- register char *return_dst __asm__ ("r10") = pdst;
-- register int n __asm__ ("r12") = plen;
-- register int lc __asm__ ("r11") = c;
--
-- /* Most apps use memset sanely. Only those memsetting about 3..4
-- bytes or less get penalized compared to the generic implementation
-- - and that's not really sane use. */
--
-- /* Ugh. This is fragile at best. Check with newer GCC releases, if
-- they compile cascaded "x |= x << 8" sanely! */
-- __asm__("movu.b %0,$r13\n\t"
-- "lslq 8,$r13\n\t"
-- "move.b %0,$r13\n\t"
-- "move.d $r13,%0\n\t"
-- "lslq 16,$r13\n\t"
-- "or.d $r13,%0"
-- : "=r" (lc) : "0" (lc) : "r13");
--
-- {
-- register char *dst __asm__ ("r13") = pdst;
--
-- /* This is NONPORTABLE, but since this whole routine is */
-- /* grossly nonportable that doesn't matter. */
--
-- if (((unsigned long) pdst & 3) != 0
-- /* Oops! n=0 must be a legal call, regardless of alignment. */
-- && n >= 3)
-- {
-- if ((unsigned long)dst & 1)
-- {
-- *dst = (char) lc;
-- n--;
-- dst++;
-- }
--
-- if ((unsigned long)dst & 2)
-- {
-- *(short *)dst = lc;
-- n -= 2;
-- dst += 2;
-- }
-- }
--
-- /* Now the fun part. For the threshold value of this, check the equation
-- above. */
-- /* Decide which copying method to use. */
-- if (n >= ZERO_BLOCK_SIZE)
-- {
-- /* For large copies we use 'movem' */
--
-- /* It is not optimal to tell the compiler about clobbering any
-- registers; that will move the saving/restoring of those registers
-- to the function prologue/epilogue, and make non-movem sizes
-- suboptimal.
--
-- This method is not foolproof; it assumes that the "asm reg"
-- declarations at the beginning of the function really are used
-- here (beware: they may be moved to temporary registers).
-- This way, we do not have to save/move the registers around into
-- temporaries; we can safely use them straight away.
--
-- If you want to check that the allocation was right; then
-- check the equalities in the first comment. It should say
-- "r13=r13, r12=r12, r11=r11" */
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/memset.c 2007-06-03 13:59:39.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/lib/memset.c 2007-06-03 14:11:43.000000000 +0200
+@@ -110,45 +110,28 @@
+ If you want to check that the allocation was right; then
+ check the equalities in the first comment. It should say
+ "r13=r13, r12=r12, r11=r11" */
- __asm__ volatile ("
- ;; Check that the following is true (same register names on
- ;; both sides of equal sign, as in r8=r8):
- ;; Now we've got this:
- ;; r13 - dst
- ;; r12 - n
--
++ __asm__ volatile (
++ "subq 11*4,$sp\n\t"
++ "movem $r10,[$sp]\n\t"
++ "move.d $r11,$r0\n\t"
++ "move.d $r11,$r1\n\t"
++ "move.d $r11,$r2\n\t"
++ "move.d $r11,$r3\n\t"
++ "move.d $r11,$r4\n\t"
++ "move.d $r11,$r5\n\t"
++ "move.d $r11,$r6\n\t"
++ "move.d $r11,$r7\n\t"
++ "move.d $r11,$r8\n\t"
++ "move.d $r11,$r9\n\t"
++ "move.d $r11,$r10\n\t"
++ "subq 12*4,$r12\n\t"
++"0:\n\t"
++ "subq 12*4,$r12\n\t"
++ "bge 0b\n\t"
++ "movem $r11,[$r13+]\n\t"
++ "addq 12*4,$r12\n\t"
++ "movem [$sp+],$r10"
+
- ;; Update n for the first loop
- subq 12*4,$r12
-0:
- ;; Restore registers from stack
- movem [$sp+],$r10"
-
-- /* Outputs */ : "=r" (dst), "=r" (n)
-- /* Inputs */ : "0" (dst), "1" (n), "r" (lc));
--
-- }
--
-- /* Either we directly starts copying, using dword copying
-- in a loop, or we copy as much as possible with 'movem'
-- and then the last block (<44 bytes) is copied here.
-- This will work since 'movem' will have updated src,dst,n. */
--
-- while ( n >= 16 )
-- {
+ /* Outputs */ : "=r" (dst), "=r" (n)
+ /* Inputs */ : "0" (dst), "1" (n), "r" (lc));
+
+@@ -161,10 +144,14 @@
+
+ while ( n >= 16 )
+ {
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
-- n -= 16;
-- }
-+ char *xs = s;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
+ n -= 16;
+ }
-- /* A switch() is definitely the fastest although it takes a LOT of code.
-- * Particularly if you inline code this.
-- */
-- switch (n)
-- {
-- case 0:
-- break;
-- case 1:
-- *(char*)dst = (char) lc;
-- break;
-- case 2:
-- *(short*)dst = (short) lc;
-- break;
-- case 3:
+@@ -182,67 +169,95 @@
+ *(short*)dst = (short) lc;
+ break;
+ case 3:
- *((short*)dst)++ = (short) lc;
-- *(char*)dst = (char) lc;
-- break;
-- case 4:
++ *((short*)dst) = (short) lc;
++ dst+=2;
+ *(char*)dst = (char) lc;
+ break;
+ case 4:
- *((long*)dst)++ = lc;
-- break;
-- case 5:
++ *((long*)dst) = lc;
++ dst+=4;
+ break;
+ case 5:
- *((long*)dst)++ = lc;
-- *(char*)dst = (char) lc;
-- break;
-- case 6:
++ *((long*)dst) = lc;
++ dst+=4;
+ *(char*)dst = (char) lc;
+ break;
+ case 6:
- *((long*)dst)++ = lc;
-- *(short*)dst = (short) lc;
-- break;
-- case 7:
++ *((long*)dst) = lc;
++ dst+=4;
+ *(short*)dst = (short) lc;
+ break;
+ case 7:
- *((long*)dst)++ = lc;
- *((short*)dst)++ = (short) lc;
-- *(char*)dst = (char) lc;
-- break;
-- case 8:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((short*)dst) = (short) lc;
++ dst+=2;
+ *(char*)dst = (char) lc;
+ break;
+ case 8:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
-- break;
-- case 9:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
+ break;
+ case 9:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
-- *(char*)dst = (char) lc;
-- break;
-- case 10:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
+ *(char*)dst = (char) lc;
+ break;
+ case 10:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
-- *(short*)dst = (short) lc;
-- break;
-- case 11:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
+ *(short*)dst = (short) lc;
+ break;
+ case 11:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((short*)dst)++ = (short) lc;
-- *(char*)dst = (char) lc;
-- break;
-- case 12:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((short*)dst) = (short) lc;
++ dst+=2;
+ *(char*)dst = (char) lc;
+ break;
+ case 12:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
-- break;
-- case 13:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
+ break;
+ case 13:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
-- *(char*)dst = (char) lc;
-- break;
-- case 14:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
+ *(char*)dst = (char) lc;
+ break;
+ case 14:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
-- *(short*)dst = (short) lc;
-- break;
-- case 15:
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
+ *(short*)dst = (short) lc;
+ break;
+ case 15:
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((long*)dst)++ = lc;
- *((short*)dst)++ = (short) lc;
-- *(char*)dst = (char) lc;
-- break;
-- }
-- }
-+ while (count--)
-+ *xs++ = c;
-+ return s;
-+}
-
-- return return_dst; /* destination pointer. */
--} /* memset() */
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((long*)dst) = lc;
++ dst+=4;
++ *((short*)dst) = (short) lc;
++ dst+=2;
+ *(char*)dst = (char) lc;
+ break;
+ }
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/string.c linux-2.6.19.2/arch/cris/arch-v10/lib/string.c
---- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/string.c 2007-05-20 01:46:35.000000000 +0200
-+++ linux-2.6.19.2/arch/cris/arch-v10/lib/string.c 2007-05-20 01:51:19.000000000 +0200
-@@ -33,193 +33,21 @@
-
- #include <linux/types.h>
-
--void *memcpy(void *pdst,
-- const void *psrc,
-- size_t pn)
-+ /**
-+ * memcpy - Copy one area of memory to another
-+ * @dest: Where to copy to
-+ * @src: Where to copy from
-+ * @count: The size of the area.
-+ *
-+ * You should not use this function to access IO space, use memcpy_toio()
-+ * or memcpy_fromio() instead.
-+ */
-+void *memcpy(void *dest, const void *src, size_t count)
- {
-- /* Ok. Now we want the parameters put in special registers.
-- Make sure the compiler is able to make something useful of this.
-- As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop).
-+ char *tmp = dest;
-+ const char *s = src;
-
-- If gcc was allright, it really would need no temporaries, and no
-- stack space to save stuff on. */
--
-- register void *return_dst __asm__ ("r10") = pdst;
-- register char *dst __asm__ ("r13") = pdst;
-- register const char *src __asm__ ("r11") = psrc;
-- register int n __asm__ ("r12") = pn;
--
--
-- /* When src is aligned but not dst, this makes a few extra needless
-- cycles. I believe it would take as many to check that the
-- re-alignment was unnecessary. */
-- if (((unsigned long) dst & 3) != 0
-- /* Don't align if we wouldn't copy more than a few bytes; so we
-- don't have to check further for overflows. */
-- && n >= 3)
-- {
-- if ((unsigned long) dst & 1)
-- {
-- n--;
-- *(char*)dst = *(char*)src;
-- src++;
-- dst++;
-- }
--
-- if ((unsigned long) dst & 2)
-- {
-- n -= 2;
-- *(short*)dst = *(short*)src;
-- src += 2;
-- dst += 2;
-- }
-- }
--
-- /* Decide which copying method to use. */
-- if (n >= 44*2) /* Break even between movem and
-- move16 is at 38.7*2, but modulo 44. */
-- {
-- /* For large copies we use 'movem' */
--
-- /* It is not optimal to tell the compiler about clobbering any
-- registers; that will move the saving/restoring of those registers
-- to the function prologue/epilogue, and make non-movem sizes
-- suboptimal.
--
-- This method is not foolproof; it assumes that the "asm reg"
-- declarations at the beginning of the function really are used
-- here (beware: they may be moved to temporary registers).
-- This way, we do not have to save/move the registers around into
-- temporaries; we can safely use them straight away.
--
-- If you want to check that the allocation was right; then
-- check the equalities in the first comment. It should say
-- "r13=r13, r11=r11, r12=r12" */
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/string.c 2007-06-03 13:59:39.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/lib/string.c 2007-06-03 14:21:02.000000000 +0200
+@@ -95,37 +95,19 @@
+ If you want to check that the allocation was right; then
+ check the equalities in the first comment. It should say
+ "r13=r13, r11=r11, r12=r12" */
- __asm__ volatile ("
- ;; Check that the following is true (same register names on
- ;; both sides of equal sign, as in r8=r8):
- ;; Restore registers from stack
- movem [$sp+],$r10"
-
-- /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n)
-- /* Inputs */ : "0" (dst), "1" (src), "2" (n));
++ __asm__ volatile (
++ "subq 11*4,$sp\n\t"
++ "movem $r10,[$sp]\n\t"
++ "subq 44,$r12\n\t"
++"0:\n\t"
++ "movem [$r11+],$r10\n\t"
++ "subq 44,$r12\n\t"
++ "bge 0b\n\t"
++ "movem $r10,[$r13+]\n\t"
++ "addq 44,$r12\n\t"
++ "movem [$sp+],$r10\n\t"
+ /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n)
+ /* Inputs */ : "0" (dst), "1" (src), "2" (n));
-
-- }
--
-- /* Either we directly starts copying, using dword copying
-- in a loop, or we copy as much as possible with 'movem'
-- and then the last block (<44 bytes) is copied here.
-- This will work since 'movem' will have updated src,dst,n. */
--
-- while ( n >= 16 )
-- {
+ }
+
+ /* Either we directly starts copying, using dword copying
+@@ -135,10 +117,14 @@
+
+ while ( n >= 16 )
+ {
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
-- n -= 16;
-- }
--
-- /* A switch() is definitely the fastest although it takes a LOT of code.
-- * Particularly if you inline code this.
-- */
-- switch (n)
-- {
-- case 0:
-- break;
-- case 1:
-- *(char*)dst = *(char*)src;
-- break;
-- case 2:
-- *(short*)dst = *(short*)src;
-- break;
-- case 3:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ n -= 16;
+ }
+
+@@ -156,67 +142,95 @@
+ *(short*)dst = *(short*)src;
+ break;
+ case 3:
- *((short*)dst)++ = *((short*)src)++;
-- *(char*)dst = *(char*)src;
-- break;
-- case 4:
++ *((short*)dst) = *((short*)src);
++ src+=2;dst+=2;
+ *(char*)dst = *(char*)src;
+ break;
+ case 4:
- *((long*)dst)++ = *((long*)src)++;
-- break;
-- case 5:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ break;
+ case 5:
- *((long*)dst)++ = *((long*)src)++;
-- *(char*)dst = *(char*)src;
-- break;
-- case 6:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ *(char*)dst = *(char*)src;
+ break;
+ case 6:
- *((long*)dst)++ = *((long*)src)++;
-- *(short*)dst = *(short*)src;
-- break;
-- case 7:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ *(short*)dst = *(short*)src;
+ break;
+ case 7:
- *((long*)dst)++ = *((long*)src)++;
- *((short*)dst)++ = *((short*)src)++;
-- *(char*)dst = *(char*)src;
-- break;
-- case 8:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((short*)dst) = *((short*)src);
++ src+=2;dst+=2;
+ *(char*)dst = *(char*)src;
+ break;
+ case 8:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
-- break;
-- case 9:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ break;
+ case 9:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
-- *(char*)dst = *(char*)src;
-- break;
-- case 10:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ *(char*)dst = *(char*)src;
+ break;
+ case 10:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
-- *(short*)dst = *(short*)src;
-- break;
-- case 11:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ *(short*)dst = *(short*)src;
+ break;
+ case 11:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((short*)dst)++ = *((short*)src)++;
-- *(char*)dst = *(char*)src;
-- break;
-- case 12:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((short*)dst) = *((short*)src);
++ src+=2;dst+=2;
+ *(char*)dst = *(char*)src;
+ break;
+ case 12:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
-- break;
-- case 13:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ break;
+ case 13:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
-- *(char*)dst = *(char*)src;
-- break;
-- case 14:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ *(char*)dst = *(char*)src;
+ break;
+ case 14:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
-- *(short*)dst = *(short*)src;
-- break;
-- case 15:
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
+ *(short*)dst = *(short*)src;
+ break;
+ case 15:
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((long*)dst)++ = *((long*)src)++;
- *((short*)dst)++ = *((short*)src)++;
-- *(char*)dst = *(char*)src;
-- break;
-- }
--
-- return return_dst; /* destination pointer. */
--} /* memcpy() */
-+ while (count--)
-+ *tmp++ = *s++;
-+ return dest;
-+}
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((long*)dst) = *((long*)src);
++ src+=4;dst+=4;
++ *((short*)dst) = *((short*)src);
++ src+=2;dst+=2;
+ *(char*)dst = *(char*)src;
+ break;
+ }
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/usercopy.c linux-2.6.19.2/arch/cris/arch-v10/lib/usercopy.c
---- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/usercopy.c 2007-05-16 22:11:26.000000000 +0200
-+++ linux-2.6.19.2/arch/cris/arch-v10/lib/usercopy.c 2007-05-16 23:17:41.000000000 +0200
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/usercopy.c 2007-06-03 13:59:39.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/lib/usercopy.c 2007-06-03 14:25:55.000000000 +0200
@@ -88,63 +88,38 @@
If you want to check that the allocation was right; then
check the equalities in the first comment. It should say
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