diff options
| -rw-r--r-- | arch/sh/kernel/sh_ksyms_64.c | 1 | ||||
| -rw-r--r-- | arch/sh/lib64/Makefile | 2 | ||||
| -rw-r--r-- | arch/sh/lib64/clear_page.S | 54 |
3 files changed, 1 insertions, 56 deletions
diff --git a/arch/sh/kernel/sh_ksyms_64.c b/arch/sh/kernel/sh_ksyms_64.c index f5bd156ea504..f96c95c07c4b 100644 --- a/arch/sh/kernel/sh_ksyms_64.c +++ b/arch/sh/kernel/sh_ksyms_64.c | |||
| @@ -52,7 +52,6 @@ EXPORT_SYMBOL(__get_user_asm_l); | |||
| 52 | EXPORT_SYMBOL(__get_user_asm_q); | 52 | EXPORT_SYMBOL(__get_user_asm_q); |
| 53 | EXPORT_SYMBOL(__strnlen_user); | 53 | EXPORT_SYMBOL(__strnlen_user); |
| 54 | EXPORT_SYMBOL(__strncpy_from_user); | 54 | EXPORT_SYMBOL(__strncpy_from_user); |
| 55 | EXPORT_SYMBOL(clear_page); | ||
| 56 | EXPORT_SYMBOL(__clear_user); | 55 | EXPORT_SYMBOL(__clear_user); |
| 57 | EXPORT_SYMBOL(copy_page); | 56 | EXPORT_SYMBOL(copy_page); |
| 58 | EXPORT_SYMBOL(__copy_user); | 57 | EXPORT_SYMBOL(__copy_user); |
diff --git a/arch/sh/lib64/Makefile b/arch/sh/lib64/Makefile index 334bb2da36ea..1fee75aa1f98 100644 --- a/arch/sh/lib64/Makefile +++ b/arch/sh/lib64/Makefile | |||
| @@ -11,7 +11,7 @@ | |||
| 11 | 11 | ||
| 12 | # Panic should really be compiled as PIC | 12 | # Panic should really be compiled as PIC |
| 13 | lib-y := udelay.o dbg.o panic.o memcpy.o memset.o \ | 13 | lib-y := udelay.o dbg.o panic.o memcpy.o memset.o \ |
| 14 | copy_user_memcpy.o copy_page.o clear_page.o strcpy.o strlen.o | 14 | copy_user_memcpy.o copy_page.o strcpy.o strlen.o |
| 15 | 15 | ||
| 16 | # Extracted from libgcc | 16 | # Extracted from libgcc |
| 17 | lib-y += udivsi3.o udivdi3.o sdivsi3.o | 17 | lib-y += udivsi3.o udivdi3.o sdivsi3.o |
diff --git a/arch/sh/lib64/clear_page.S b/arch/sh/lib64/clear_page.S deleted file mode 100644 index 007ab48ecc1c..000000000000 --- a/arch/sh/lib64/clear_page.S +++ /dev/null | |||
| @@ -1,54 +0,0 @@ | |||
| 1 | /* | ||
| 2 | Copyright 2003 Richard Curnow, SuperH (UK) Ltd. | ||
| 3 | |||
| 4 | This file is subject to the terms and conditions of the GNU General Public | ||
| 5 | License. See the file "COPYING" in the main directory of this archive | ||
| 6 | for more details. | ||
| 7 | |||
| 8 | Tight version of memset for the case of just clearing a page. It turns out | ||
| 9 | that having the alloco's spaced out slightly due to the increment/branch | ||
| 10 | pair causes them to contend less for access to the cache. Similarly, | ||
| 11 | keeping the stores apart from the allocos causes less contention. => Do two | ||
| 12 | separate loops. Do multiple stores per loop to amortise the | ||
| 13 | increment/branch cost a little. | ||
| 14 | |||
| 15 | Parameters: | ||
| 16 | r2 : source effective address (start of page) | ||
| 17 | |||
| 18 | Always clears 4096 bytes. | ||
| 19 | |||
| 20 | Note : alloco guarded by synco to avoid TAKum03020 erratum | ||
| 21 | |||
| 22 | */ | ||
| 23 | |||
| 24 | .section .text..SHmedia32,"ax" | ||
| 25 | .little | ||
| 26 | |||
| 27 | .balign 8 | ||
| 28 | .global clear_page | ||
| 29 | clear_page: | ||
| 30 | pta/l 1f, tr1 | ||
| 31 | pta/l 2f, tr2 | ||
| 32 | ptabs/l r18, tr0 | ||
| 33 | |||
| 34 | movi 4096, r7 | ||
| 35 | add r2, r7, r7 | ||
| 36 | add r2, r63, r6 | ||
| 37 | 1: | ||
| 38 | alloco r6, 0 | ||
| 39 | synco ! TAKum03020 | ||
| 40 | addi r6, 32, r6 | ||
| 41 | bgt/l r7, r6, tr1 | ||
| 42 | |||
| 43 | add r2, r63, r6 | ||
| 44 | 2: | ||
| 45 | st.q r6, 0, r63 | ||
| 46 | st.q r6, 8, r63 | ||
| 47 | st.q r6, 16, r63 | ||
| 48 | st.q r6, 24, r63 | ||
| 49 | addi r6, 32, r6 | ||
| 50 | bgt/l r7, r6, tr2 | ||
| 51 | |||
| 52 | blink tr0, r63 | ||
| 53 | |||
| 54 | |||
