From faec5053312194f9f9c05a3a98f0980c0054ad29 Mon Sep 17 00:00:00 2001 From: Jie Zhang Date: Tue, 2 Sep 2008 07:16:44 +0000 Subject: Blackfin: add support for automatic loading of L2 SRAM regions These match the kernel/etc... pieces already merged. Signed-off-by: Jie Zhang Signed-off-by: Mike Frysinger --- ldso/ldso/bfin/dl-inlines.h | 53 ++++++++++++++++++++++++++++++--------------- 1 file changed, 36 insertions(+), 17 deletions(-) (limited to 'ldso') diff --git a/ldso/ldso/bfin/dl-inlines.h b/ldso/ldso/bfin/dl-inlines.h index 6ed1bdaf9..01f130009 100644 --- a/ldso/ldso/bfin/dl-inlines.h +++ b/ldso/ldso/bfin/dl-inlines.h @@ -504,12 +504,15 @@ __dl_is_special_segment (Elf32_Ehdr *epnt, && !(ppnt->p_flags & PF_X)) return 1; - /* 0xff700000, 0xff800000, 0xff900000 and 0xffa00000 are also used in - GNU ld and linux kernel. They need to be keep synchronized. */ + /* 0xfeb00000, 0xfec00000, 0xff700000, 0xff800000, 0xff900000, + and 0xffa00000 are also used in GNU ld and linux kernel. + They need to be kept synchronized. */ if (ppnt->p_vaddr == 0xff700000 || ppnt->p_vaddr == 0xff800000 || ppnt->p_vaddr == 0xff900000 - || ppnt->p_vaddr == 0xffa00000) + || ppnt->p_vaddr == 0xffa00000 + || ppnt->p_vaddr == 0xfeb00000 + || ppnt->p_vaddr == 0xfec00000) return 1; return 0; @@ -521,7 +524,7 @@ __dl_map_segment (Elf32_Ehdr *epnt, int infile, int flags) { - char *status, *tryaddr, *l1addr; + char *status, *tryaddr, *addr; size_t size; if (((epnt->e_flags & EF_BFIN_CODE_IN_L1) || ppnt->p_vaddr == 0xffa00000) @@ -536,13 +539,13 @@ __dl_map_segment (Elf32_Ehdr *epnt, if (_dl_mmap_check_error(status) || (tryaddr && tryaddr != status)) return NULL; - l1addr = (char *) _dl_sram_alloc (ppnt->p_filesz, L1_INST_SRAM); - if (l1addr != NULL) - _dl_dma_memcpy (l1addr, status + (ppnt->p_vaddr & ADDR_ALIGN), ppnt->p_filesz); + addr = (char *) _dl_sram_alloc (ppnt->p_filesz, L1_INST_SRAM); + if (addr != NULL) + _dl_dma_memcpy (addr, status + (ppnt->p_vaddr & ADDR_ALIGN), ppnt->p_filesz); _dl_munmap (status, size); - if (l1addr == NULL) + if (addr == NULL) _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__); - return l1addr; + return addr; } if (((epnt->e_flags & EF_BFIN_DATA_IN_L1) @@ -552,22 +555,38 @@ __dl_map_segment (Elf32_Ehdr *epnt, && (ppnt->p_flags & PF_W) && !(ppnt->p_flags & PF_X)) { if (ppnt->p_vaddr == 0xff800000) - l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_A_SRAM); + addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_A_SRAM); else if (ppnt->p_vaddr == 0xff900000) - l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_B_SRAM); + addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_B_SRAM); else - l1addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_SRAM); - if (l1addr == NULL) { + addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L1_DATA_SRAM); + if (addr == NULL) { _dl_dprintf(2, "%s:%i: L1 allocation failed\n", _dl_progname, __LINE__); } else { - if (_DL_PREAD (infile, l1addr, ppnt->p_filesz, ppnt->p_offset) != ppnt->p_filesz) { - _dl_sram_free (l1addr); + if (_DL_PREAD (infile, addr, ppnt->p_filesz, ppnt->p_offset) != ppnt->p_filesz) { + _dl_sram_free (addr); return NULL; } if (ppnt->p_filesz < ppnt->p_memsz) - _dl_memset (l1addr + ppnt->p_filesz, 0, ppnt->p_memsz - ppnt->p_filesz); + _dl_memset (addr + ppnt->p_filesz, 0, ppnt->p_memsz - ppnt->p_filesz); } - return l1addr; + return addr; + } + + if (ppnt->p_vaddr == 0xfeb00000 + || ppnt->p_vaddr == 0xfec00000) { + addr = (char *) _dl_sram_alloc (ppnt->p_memsz, L2_SRAM); + if (addr == NULL) { + _dl_dprintf(2, "%s:%i: L2 allocation failed\n", _dl_progname, __LINE__); + } else { + if (_DL_PREAD (infile, addr, ppnt->p_filesz, ppnt->p_offset) != ppnt->p_filesz) { + _dl_sram_free (addr); + return NULL; + } + if (ppnt->p_filesz < ppnt->p_memsz) + _dl_memset (addr + ppnt->p_filesz, 0, ppnt->p_memsz - ppnt->p_filesz); + } + return addr; } return 0; -- cgit v1.2.3