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Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/lib/mem_ubicom32.c')
-rw-r--r--target/linux/ubicom32/files/arch/ubicom32/lib/mem_ubicom32.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/lib/mem_ubicom32.c b/target/linux/ubicom32/files/arch/ubicom32/lib/mem_ubicom32.c
deleted file mode 100644
index d9c302ec64..0000000000
--- a/target/linux/ubicom32/files/arch/ubicom32/lib/mem_ubicom32.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * arch/ubicom32/lib/mem_ubicom32.c
- * String functions.
- *
- * (C) Copyright 2009, Ubicom, Inc.
- *
- * This file is part of the Ubicom32 Linux Kernel Port.
- *
- * The Ubicom32 Linux Kernel Port is free software: you can redistribute
- * it and/or modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 2 of the
- * License, or (at your option) any later version.
- *
- * The Ubicom32 Linux Kernel Port is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the Ubicom32 Linux Kernel Port. If not,
- * see <http://www.gnu.org/licenses/>.
- *
- * Ubicom32 implementation derived from (with many thanks):
- * arch/m68knommu
- * arch/blackfin
- * arch/parisc
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/compiler.h>
-
-#define LIKELY likely
-#define UNLIKELY unlikely
-
-typedef u32_t addr_t;
-
-/*
- * memcpy()
- */
-void *memcpy(void *dest, const void *src, size_t n)
-{
- void *dest_ret = dest;
-
- if (LIKELY((((addr_t)dest ^ (addr_t)src) & 3) == 0) && LIKELY(n > 6)) {
- size_t m;
- n -= (4 - (addr_t)dest) & 0x03;
- m = n >> 2;
- asm volatile (
- " sub.4 d15, #0, %2 \n\t" // set up for jump table
- " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.4 a3, (a3,d15) \n\t"
-
- " bfextu d15, %0, #2 \n\t" // d15 = (dest & 3)
- " jmpne.w.f 100f \n\t"
- " calli a3, 0(a3) \n\t" // 4-byte alignment
-
- "100: cmpi d15, #2 \n\t"
- " jmpne.s.f 101f \n\t"
- " move.2 (%0)2++, (%1)2++ \n\t"
- " calli a3, 0(a3) \n\t" // 2-byte alignment
-
- "101: move.1 (%0)1++, (%1)1++ \n\t"
- " jmpgt.s.f 102f \n\t" // 3-byte alignment
- " move.2 (%0)2++, (%1)2++ \n\t" // 1-byte alignment
- "102: calli a3, 0(a3) \n\t"
-
- "200: cmpi %3, #2 \n\t"
- " jmplt.s.f 201f \n\t"
- " move.2 (%0)2++, (%1)2++ \n\t"
- " jmpeq.s.t 2f \n\t"
- "201: move.1 (%0)1++, (%1)1++ \n\t"
- " jmpt.w.t 2f \n\t"
-
- "1: .rept 25 \n\t"
- " movea (%0)4++, (%1)4++ \n\t"
- " .endr \n\t"
- " .rept 7 \n\t"
- " move.4 (%0)4++, (%1)4++ \n\t"
- " .endr \n\t"
- " add.4 %2, #-32, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
-
- " and.4 %3, #3, %3 \n\t" // check n
- " jmpne.w.f 200b \n\t"
- "2: \n\t"
- : "+a" (dest), "+a" (src), "+d" (m), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
-
- return dest_ret;
- }
-
- if (LIKELY((((addr_t)dest ^ (addr_t)src) & 1) == 0) && LIKELY(n > 2)) {
- size_t m;
- n -= (addr_t)dest & 0x01;
- m = n >> 1;
- asm volatile (
- " sub.4 d15, #0, %2 \n\t" // set up for jump table
- " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.4 a3, (a3,d15) \n\t"
-
- " btst %0, #0 \n\t" // check bit 0
- " jmpne.w.f 100f \n\t"
- " calli a3, 0(a3) \n\t" // 4-byte alignment
-
- "100: move.1 (%0)1++, (%1)1++ \n\t"
- " calli a3, 0(a3) \n\t"
-
- "200: move.1 (%0)1++, (%1)1++ \n\t"
- " jmpt.w.t 2f \n\t"
-
- "1: .rept 32 \n\t"
- " move.2 (%0)2++, (%1)2++ \n\t"
- " .endr \n\t"
- " add.4 %2, #-32, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
-
- " and.4 %3, #1, %3 \n\t" // check n
- " jmpne.w.f 200b \n\t"
- "2: \n\t"
-
- : "+a" (dest), "+a" (src), "+d" (m), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
-
- return dest_ret;
- }
-
- asm volatile (
- " sub.4 d15, #0, %2 \n\t"
- " jmpeq.w.f 2f \n\t"
- " and.4 d15, #(16-1), d15 \n\t" // d15 = (-n) & (16 - 1)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.4 a3, (a3,d15) \n\t"
- " calli a3, 0(a3) \n\t"
-
- "1: .rept 16 \n\t"
- " move.1 (%0)1++, (%1)1++ \n\t"
- " .endr \n\t"
- " add.4 %2, #-16, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
- "2: \n\t"
-
- : "+a" (dest), "+a" (src), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
-
- return dest_ret;
-}
-
-/*
- * memset()
- */
-void *memset(void *s, int c, size_t n)
-{
- void *s_ret = s;
-
- if (LIKELY(n > 6)) {
- size_t m;
- n -= (4 - (addr_t)s) & 0x03;
- m = n >> 2;
- asm volatile (
- " sub.4 d15, #0, %2 \n\t" // set up for jump table
- " and.4 d15, #(32-1), d15 \n\t" // d15 = (-m) & (32 - 1)
- " shmrg.1 %1, %1, %1 \n\t"
- " shmrg.2 %1, %1, %1 \n\t" // %1 = (c<<24)|(c<<16)|(c<<8)|c
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.4 a3, (a3,d15) \n\t"
-
- " bfextu d15, %0, #2 \n\t" // d15 = (s & 3)
- " jmpne.w.f 100f \n\t"
- " calli a3, 0(a3) \n\t" // 4-byte alignment
-
- "100: cmpi d15, #2 \n\t"
- " jmpne.s.f 101f \n\t"
- " move.2 (%0)2++, %1 \n\t"
- " calli a3, 0(a3) \n\t" // 2-byte alignment
-
- "101: move.1 (%0)1++, %1 \n\t"
- " jmpgt.s.f 102f \n\t" // 3-byte alignment
- " move.2 (%0)2++, %1 \n\t" // 1-byte alignment
- "102: calli a3, 0(a3) \n\t"
-
- "200: cmpi %3, #2 \n\t"
- " jmplt.s.f 201f \n\t"
- " move.2 (%0)2++, %1 \n\t"
- " jmpeq.s.t 2f \n\t"
- "201: move.1 (%0)1++, %1 \n\t"
- " jmpt.w.t 2f \n\t"
-
- "1: .rept 25 \n\t"
- " movea (%0)4++, %1 \n\t"
- " .endr \n\t"
- " .rept 7 \n\t"
- " move.4 (%0)4++, %1 \n\t"
- " .endr \n\t"
- " add.4 %2, #-32, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
-
- " and.4 %3, #3, %3 \n\t" // test bit 1 of n
- " jmpne.w.f 200b \n\t"
- "2: \n\t"
-
- : "+a" (s), "+d" (c), "+d" (m), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
-
- return s_ret;
- }
-
- asm volatile (
- " sub.4 d15, #0, %2 \n\t"
- " jmpeq.w.f 2f \n\t"
- " and.4 d15, #(8-1), d15 \n\t" // d15 = (-%2) & (16 - 1)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.4 a3, (a3,d15) \n\t"
- " calli a3, 0(a3) \n\t"
-
- "1: .rept 8 \n\t"
- " move.1 (%0)1++, %1 \n\t"
- " .endr \n\t"
- "2: \n\t"
-
- : "+a" (s), "+d" (c), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
-
- return s_ret;
-}
-
-void *memmove(void *dest, const void *src, size_t n)
-{
- char *tmp;
- const char *s;
-
- if (n == 0)
- return dest;
-
- tmp = dest;
- s = src;
-
- /*
- * Will perform 16-bit move if possible
- */
- if (likely((((u32)dest | (u32)src | n) & 1) == 0)) {
- if (dest <= src) {
- asm volatile (
- " sub.4 d15, #0, %2 \n\t" // set up for jump table
- " and.4 d15, #(32-2), d15 \n\t" // d15 = (- count) & (32 - 2)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.2 a3, (a3,d15) \n\t"
- " calli a3, 0(a3) \n\t"
-
- "1: .rept 16 \n\t"
- " move.2 (%0)2++, (%1)2++ \n\t"
- " .endr \n\t"
- " add.4 %2, #-32, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
-
- : "+a" (tmp), "+a" (s), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
- } else {
- tmp += n;
- s += n;
- asm volatile (
- " sub.4 d15, #0, %2 \n\t" // set up for jump table
- " and.4 d15, #(32-2), d15 \n\t" // d15 = (- count) & (32 - 2)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.2 a3, (a3,d15) \n\t"
- " calli a3, 0(a3) \n\t"
-
- "1: .rept 16 \n\t"
- " move.2 -2(%0)++, -2(%1)++ \n\t"
- " .endr \n\t"
- " add.4 %2, #-32, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
-
- : "+a" (tmp), "+a" (s), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
- }
- return dest;
- }
-
- if (dest <= src) {
- asm volatile (
- " sub.4 d15, #0, %2 \n\t" // set up for jump table
- " and.4 d15, #(16-1), d15 \n\t" // d15 = (- count) & (16 - 1)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.4 a3, (a3,d15) \n\t"
- " calli a3, 0(a3) \n\t"
-
- "1: .rept 16 \n\t"
- " move.1 (%0)1++, (%1)1++ \n\t"
- " .endr \n\t"
- " add.4 %2, #-16, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
- : "+a" (tmp), "+a" (s), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
- } else {
- tmp += n;
- s += n;
- asm volatile (
- " sub.4 d15, #0, %2 \n\t" // set up for jump table
- " and.4 d15, #(16-1), d15 \n\t" // d15 = (- count) & (16 - 1)
- " moveai a3, #%%hi(1f) \n\t"
- " lea.1 a3, %%lo(1f)(a3) \n\t"
- " lea.4 a3, (a3,d15) \n\t"
- " calli a3, 0(a3) \n\t"
-
- "1: .rept 16 \n\t"
- " move.1 -1(%0)++, -1(%1)++ \n\t"
- " .endr \n\t"
- " add.4 %2, #-16, %2 \n\t"
- " jmpgt.w.f 1b \n\t"
- : "+a" (tmp), "+a" (s), "+d" (n)
- :
- : "d15", "a3", "memory", "cc"
- );
- }
- return dest;
-}
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