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bsps: Move memcpy.c to bsps

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This patch is a part of the BSP source reorganization.

Update #3285.
This commit is contained in:
Sebastian Huber
2018-04-24 07:19:46 +02:00
parent 1163f50285
commit b8777d93ce
5 changed files with 4 additions and 4 deletions
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2
c/src/lib/libbsp/powerpc/gen5200/Makefile.am
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@@ -93,7 +93,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-defa
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/sbrk.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bsp-uboot-board-info.c
librtemsbsp_a_SOURCES += ../shared/showbats.c
librtemsbsp_a_SOURCES += ../shared/src/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/bspidle.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/u-boot/uboot_dump_bdinfo.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/u-boot/uboot_getenv.c

2
c/src/lib/libbsp/powerpc/mpc55xxevb/Makefile.am
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@@ -44,7 +44,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspfatal-default.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/stackalloc.c
librtemsbsp_a_SOURCES += ../shared/src/bsp-start-zero.S
librtemsbsp_a_SOURCES += ../shared/src/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/tictac.c
librtemsbsp_a_SOURCES += ../shared/src/ppc-exc-handler-table.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mpc55xxevb/start/bspstart.c

126
c/src/lib/libbsp/powerpc/shared/src/memcpy.c
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@@ -1,126 +0,0 @@
/*
* Copyright (c) 2011 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <info@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <bspopts.h>
#include <rtems/powerpc/powerpc.h>
#if BSP_DATA_CACHE_ENABLED \
&& PPC_CACHE_ALIGNMENT == 32 \
&& !defined(BSP_DATA_CACHE_USE_WRITE_THROUGH)
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include <libcpu/powerpc-utility.h>
#define WORD_SIZE 4
#define WORD_MASK (WORD_SIZE - 1)
static bool aligned(const void *a, const void *b)
{
return ((((uintptr_t) a) | ((uintptr_t) b)) & WORD_MASK) == 0;
}
void *memcpy(void *dst_ptr, const void *src_ptr, size_t n)
{
uint8_t *dst = dst_ptr;
const uint8_t *src = src_ptr;
ppc_data_cache_block_touch(src);
if (__builtin_expect(n >= WORD_SIZE && aligned(src, dst), 1)) {
uint32_t *word_dst = (uint32_t *) dst - 1;
const uint32_t *word_src = (const uint32_t *) src - 1;
if (n >= 2 * PPC_CACHE_ALIGNMENT - WORD_SIZE) {
while ((uintptr_t) (word_dst + 1) % PPC_CACHE_ALIGNMENT != 0) {
uint32_t tmp;
__asm__ volatile (
"lwzu %[tmp], 0x4(%[src])\n"
"stwu %[tmp], 0x4(%[dst])\n"
: [src] "+b" (word_src),
[dst] "+b" (word_dst),
[tmp] "=&r" (tmp)
);
n -= WORD_SIZE;
}
while (n >= PPC_CACHE_ALIGNMENT) {
uint32_t dst_offset = 4;
uint32_t src_offset = 32 + 4;
uint32_t tmp0;
uint32_t tmp1;
uint32_t tmp2;
uint32_t tmp3;
__asm__ volatile (
"dcbz %[dst], %[dst_offset]\n"
"lwz %[tmp0], 0x04(%[src])\n"
"dcbt %[src], %[src_offset]\n"
"lwz %[tmp1], 0x08(%[src])\n"
"lwz %[tmp2], 0x0c(%[src])\n"
"lwz %[tmp3], 0x10(%[src])\n"
"stw %[tmp0], 0x04(%[dst])\n"
"stw %[tmp1], 0x08(%[dst])\n"
"stw %[tmp2], 0x0c(%[dst])\n"
"stw %[tmp3], 0x10(%[dst])\n"
"lwz %[tmp0], 0x14(%[src])\n"
"lwz %[tmp1], 0x18(%[src])\n"
"lwz %[tmp2], 0x1c(%[src])\n"
"lwzu %[tmp3], 0x20(%[src])\n"
"stw %[tmp0], 0x14(%[dst])\n"
"stw %[tmp1], 0x18(%[dst])\n"
"stw %[tmp2], 0x1c(%[dst])\n"
"stwu %[tmp3], 0x20(%[dst])\n"
: [src] "+b" (word_src),
[dst] "+b" (word_dst),
[tmp0] "=&r" (tmp0),
[tmp1] "=&r" (tmp1),
[tmp2] "=&r" (tmp2),
[tmp3] "=&r" (tmp3)
: [src_offset] "r" (src_offset),
[dst_offset] "r" (dst_offset)
);
n -= PPC_CACHE_ALIGNMENT;
}
}
while (n >= WORD_SIZE) {
uint32_t tmp;
__asm__ volatile (
"lwzu %[tmp], 0x4(%[src])\n"
"stwu %[tmp], 0x4(%[dst])\n"
: [src] "+b" (word_src),
[dst] "+b" (word_dst),
[tmp] "=&r" (tmp)
);
n -= WORD_SIZE;
}
dst = (uint8_t *) word_dst + 4;
src = (const uint8_t *) word_src + 4;
}
while (n > 0) {
*dst = *src;
++src;
++dst;
--n;
}
return dst_ptr;
}
#endif /* BSP_DATA_CACHE_ENABLED && PPC_CACHE_ALIGNMENT == 32 */

2
c/src/lib/libbsp/powerpc/virtex4/Makefile.am
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@@ -24,7 +24,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-defa
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/virtex4/start/bspstart.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy-cpucounter.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/sbrk.c
librtemsbsp_a_SOURCES += ../shared/src/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspreset-empty.c
# start

2
c/src/lib/libbsp/powerpc/virtex5/Makefile.am
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@@ -23,7 +23,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-defa
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/virtex5/start/bspstart.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy-cpucounter.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/sbrk.c
librtemsbsp_a_SOURCES += ../shared/src/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/memcpy.c
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspreset-empty.c
# start