arch/tile: Various cleanups.

This change rolls up random cleanups not representing any actual bugs.

- Remove a stale CONFIG_ value from the default tile_defconfig
- Remove unused tns_atomic_xxx() family of methods from <asm/atomic.h>
- Optimize get_order() using Tile's "clz" instruction
- Fix a bad hypervisor upcall name (not currently used in Linux anyway)
- Use __copy_in_user_inatomic() name for consistency, and export it
- Export some additional hypervisor driver I/O upcalls and some homecache calls
- Remove the obfuscating MEMCPY_TEST_WH64 support code
- Other stray comment cleanups, #if 0 removal, etc.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

1 files changed, 0 insertions, 25 deletions

diff --git a/arch/tile/lib/memset_32.c b/arch/tile/lib/memset_32.c
index bfde5d864df1..d014c1fbcbc2 100644
--- a/arch/tile/lib/memset_32.c
+++ b/arch/tile/lib/memset_32.c
@@ -141,7 +141,6 @@ void *memset(void *s, int c, size_t n)
                          */
                         __insn_prefetch(&out32[ahead32]);
 
-#if 1
 #if CACHE_LINE_SIZE_IN_WORDS % 4 != 0
 #error "Unhandled CACHE_LINE_SIZE_IN_WORDS"
 #endif
@@ -157,30 +156,6 @@ void *memset(void *s, int c, size_t n)
                                 *out32++ = v32;
                                 *out32++ = v32;
                         }
-#else
-                        /* Unfortunately, due to a code generator flaw this
-                         * allocates a separate register for each of these
-                         * stores, which requires a large number of spills,
-                         * which makes this procedure enormously bigger
-                         * (something like 70%)
-                         */
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        *out32++ = v32;
-                        n32 -= 16;
-#endif
 
                         /* To save compiled code size, reuse this loop even
                          * when we run out of prefetching to do by dropping