diff options
| -rw-r--r-- | common/cmd_bootm.c | 8 | ||||
| -rw-r--r-- | common/image.c | 134 | ||||
| -rw-r--r-- | include/image.h | 12 | ||||
| -rw-r--r-- | lib_m68k/bootm.c | 26 | ||||
| -rw-r--r-- | lib_ppc/bootm.c | 65 |
5 files changed, 119 insertions, 126 deletions
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 92c2f4e..a32a5a2 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -103,6 +103,12 @@ static boot_os_fn do_bootm_artos; ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */ static bootm_headers_t images; /* pointers to os/initrd/fdt images */ +void __board_lmb_reserve(struct lmb *lmb) +{ + /* please define platform specific board_lmb_reserve() */ +} +void board_lmb_reserve(struct lmb *lmb) __attribute__((weak, alias("__board_lmb_reserve"))); + /*******************************************************************/ /* bootm - boot application image from image in memory */ @@ -134,6 +140,8 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) lmb_add(&lmb, 0, gd->bd->bi_memsize); #endif + board_lmb_reserve(&lmb); + /* get kernel image header, start address and length */ os_hdr = get_kernel (cmdtp, flag, argc, argv, &images, &os_data, &os_len); diff --git a/common/image.c b/common/image.c index 4f2ff9c..0b71811 100644 --- a/common/image.c +++ b/common/image.c @@ -704,10 +704,9 @@ int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], #if defined(CONFIG_PPC) || defined(CONFIG_M68K) /** * ramdisk_high - relocate init ramdisk + * @lmb: pointer to lmb handle, will be used for memory mgmt * @rd_data: ramdisk data start address * @rd_len: ramdisk data length - * @sp_limit: stack pointer limit (including BOOTMAPSZ) - * @sp: current stack pointer * @initrd_start: pointer to a ulong variable, will hold final init ramdisk * start address (after possible relocation) * @initrd_end: pointer to a ulong variable, will hold final init ramdisk @@ -720,16 +719,16 @@ int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], * - initrd_start and initrd_end are set to final (after relocation) ramdisk * start/end addresses if ramdisk image start and len were provided * otherwise set initrd_start and initrd_end set to zeros - * - returns new allc_current, next free address below BOOTMAPSZ + * - returns: + * 0 - success + * -1 - failure */ -ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len, - ulong sp_limit, ulong sp, - ulong *initrd_start, ulong *initrd_end) +int ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len, + ulong *initrd_start, ulong *initrd_end) { char *s; ulong initrd_high; int initrd_copy_to_ram = 1; - ulong new_alloc_current = alloc_current; if ((s = getenv ("initrd_high")) != NULL) { /* a value of "no" or a similar string will act like 0, @@ -743,12 +742,6 @@ ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len, initrd_high = ~0; } -#ifdef CONFIG_LOGBUFFER - /* Prevent initrd from overwriting logbuffer */ - if (initrd_high < (gd->bd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD)) - initrd_high = gd->bd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD; - debug ("## Logbuffer at 0x%08lx ", gd->bd->bi_memsize - LOGBUFF_LEN); -#endif debug ("## initrd_high = 0x%08lx, copy_to_ram = %d\n", initrd_high, initrd_copy_to_ram); @@ -757,40 +750,17 @@ ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len, debug (" in-place initrd\n"); *initrd_start = rd_data; *initrd_end = rd_data + rd_len; + lmb_reserve(lmb, rd_data, rd_len); } else { - new_alloc_current = alloc_current - rd_len; - *initrd_start = new_alloc_current; - *initrd_start &= ~(4096 - 1); /* align on page */ - - if (initrd_high) { - ulong nsp; - - /* - * the inital ramdisk does not need to be within - * CFG_BOOTMAPSZ as it is not accessed until after - * the mm system is initialised. - * - * do the stack bottom calculation again and see if - * the initrd will fit just below the monitor stack - * bottom without overwriting the area allocated - * for command line args and board info. - */ - nsp = sp; - nsp -= 2048; /* just to be sure */ - nsp &= ~0xF; - - if (nsp > initrd_high) /* limit as specified */ - nsp = initrd_high; - - nsp -= rd_len; - nsp &= ~(4096 - 1); /* align on page */ - - if (nsp >= sp_limit) { - *initrd_start = nsp; - new_alloc_current = alloc_current; - } + if (initrd_high) + *initrd_start = lmb_alloc_base(lmb, rd_len, 0x1000, initrd_high); + else + *initrd_start = lmb_alloc(lmb, rd_len, 0x1000); + + if (*initrd_start == 0) { + puts("ramdisk - allocation error\n"); + goto error; } - show_boot_progress (12); *initrd_end = *initrd_start + rd_len; @@ -808,56 +778,40 @@ ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len, } debug (" ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n", *initrd_start, *initrd_end); + return 0; - return new_alloc_current; -} - -/** - * get_boot_sp_limit - calculate stack pointer limit - * @sp: current stack pointer - * - * get_boot_sp_limit() takes current stack pointer adrress and calculates - * stack pointer limit, below which kernel boot data (cmdline, board info, - * etc.) will be allocated. - * - * returns: - * stack pointer limit - */ -ulong get_boot_sp_limit(ulong sp) -{ - ulong sp_limit = sp; - - sp_limit -= 2048; /* just to be sure */ - - /* make sure sp_limit is within kernel mapped space */ - if (sp_limit > CFG_BOOTMAPSZ) - sp_limit = CFG_BOOTMAPSZ; - sp_limit &= ~0xF; - - return sp_limit; +error: + return -1; } /** * get_boot_cmdline - allocate and initialize kernel cmdline - * @alloc_current: current boot allocation address (counting down - * from sp_limit) + * @lmb: pointer to lmb handle, will be used for memory mgmt * @cmd_start: pointer to a ulong variable, will hold cmdline start * @cmd_end: pointer to a ulong variable, will hold cmdline end + * @bootmap_base: ulong variable, holds offset in physical memory to + * base of bootmap * * get_boot_cmdline() allocates space for kernel command line below - * provided alloc_current address. If "bootargs" U-boot environemnt + * BOOTMAPSZ + bootmap_base address. If "bootargs" U-boot environemnt * variable is present its contents is copied to allocated kernel * command line. * * returns: - * alloc_current after cmdline allocation + * 0 - success + * -1 - failure */ -ulong get_boot_cmdline (ulong alloc_current, ulong *cmd_start, ulong *cmd_end) +int get_boot_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end, + ulong bootmap_base) { char *cmdline; char *s; - cmdline = (char *)((alloc_current - CFG_BARGSIZE) & ~0xF); + cmdline = (char *)lmb_alloc_base(lmb, CFG_BARGSIZE, 0xf, + CFG_BOOTMAPSZ + bootmap_base); + + if (cmdline == NULL) + return -1; if ((s = getenv("bootargs")) == NULL) s = ""; @@ -869,25 +823,31 @@ ulong get_boot_cmdline (ulong alloc_current, ulong *cmd_start, ulong *cmd_end) debug ("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end); - return (ulong)cmdline; + return 0; } /** * get_boot_kbd - allocate and initialize kernel copy of board info - * @alloc_current: current boot allocation address (counting down - * from sp_limit) + * @lmb: pointer to lmb handle, will be used for memory mgmt * @kbd: double pointer to board info data + * @bootmap_base: ulong variable, holds offset in physical memory to + * base of bootmap * - * get_boot_kbd() - allocates space for kernel copy of board info data. - * Space is allocated below provided alloc_current address and kernel - * board info is initialized with the current u-boot board info data. + * get_boot_kbd() allocates space for kernel copy of board info data below + * BOOTMAPSZ + bootmap_base address and kernel board info is initialized with + * the current u-boot board info data. * * returns: - * alloc_current after kbd allocation + * 0 - success + * -1 - failure */ -ulong get_boot_kbd (ulong alloc_current, bd_t **kbd) +int get_boot_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base) { - *kbd = (bd_t *) (((ulong)alloc_current - sizeof(bd_t)) & ~0xF); + *kbd = (bd_t *)lmb_alloc_base(lmb, sizeof(bd_t), 0xf, + CFG_BOOTMAPSZ + bootmap_base); + if (*kbd == NULL) + return -1; + **kbd = *(gd->bd); debug ("## kernel board info at 0x%08lx\n", (ulong)*kbd); @@ -896,7 +856,7 @@ ulong get_boot_kbd (ulong alloc_current, bd_t **kbd) do_bdinfo(NULL, 0, 0, NULL); #endif - return (ulong)*kbd; + return 0; } #endif /* CONFIG_PPC || CONFIG_M68K */ diff --git a/include/image.h b/include/image.h index 5ce2ca4..97eb520 100644 --- a/include/image.h +++ b/include/image.h @@ -391,13 +391,11 @@ int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], ulong *rd_start, ulong *rd_end); #if defined(CONFIG_PPC) || defined(CONFIG_M68K) -ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len, - ulong sp_limit, ulong sp, - ulong *initrd_start, ulong *initrd_end); - -ulong get_boot_sp_limit (ulong sp); -ulong get_boot_cmdline (ulong alloc_current, ulong *cmd_start, ulong *cmd_end); -ulong get_boot_kbd (ulong alloc_current, bd_t **kbd); +int ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len, + ulong *initrd_start, ulong *initrd_end); +int get_boot_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end, + ulong bootmap_base); +int get_boot_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base); #endif /* CONFIG_PPC || CONFIG_M68K */ /*******************************************************************/ diff --git a/lib_m68k/bootm.c b/lib_m68k/bootm.c index c9d2a27..8429ca0 100644 --- a/lib_m68k/bootm.c +++ b/lib_m68k/bootm.c @@ -50,16 +50,18 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[], bootm_headers_t *images) { - ulong sp, sp_limit, alloc_current; + ulong sp; ulong rd_data_start, rd_data_end, rd_len; ulong initrd_start, initrd_end; int ret; ulong cmd_start, cmd_end; + ulong bootmap_base = 0; bd_t *kbd; ulong ep = 0; void (*kernel) (bd_t *, ulong, ulong, ulong, ulong); + struct lmb *lmb = images->lmb; /* * Booting a (Linux) kernel image @@ -73,14 +75,23 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, sp = get_sp(); debug ("## Current stack ends at 0x%08lx ", sp); - alloc_current = sp_limit = get_boot_sp_limit(sp); - debug ("=> set upper limit to 0x%08lx\n", sp_limit); + /* adjust sp by 1K to be safe */ + sp -= 1024; + lmb_reserve(lmb, sp, (CFG_SDRAM_BASE + gd->ram_size - sp)); /* allocate space and init command line */ - alloc_current = get_boot_cmdline (alloc_current, &cmd_start, &cmd_end); + ret = get_boot_cmdline (lmb, &cmd_start, &cmd_end, bootmap_base); + if (ret) { + puts("ERROR with allocation of cmdline\n"); + goto error; + } /* allocate space for kernel copy of board info */ - alloc_current = get_boot_kbd (alloc_current, &kbd); + ret = get_boot_kbd (lmb, &kbd, bootmap_base); + if (ret) { + puts("ERROR with allocation of kernel bd\n"); + goto error; + } set_clocks_in_mhz(kbd); /* find kernel entry point */ @@ -105,8 +116,9 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, goto error; rd_len = rd_data_end - rd_data_start; - alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len, - sp_limit, get_sp (), &initrd_start, &initrd_end); + ret = ramdisk_high (lmb, rd_data_start, rd_len, &initrd_start, &initrd_end); + if (ret) + goto error; debug("## Transferring control to Linux (at address %08lx) ...\n", (ulong) kernel); diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c index 9f48b8d..d74a3f4 100644 --- a/lib_ppc/bootm.c +++ b/lib_ppc/bootm.c @@ -43,7 +43,7 @@ static void fdt_error (const char *msg); static int get_fdt (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], bootm_headers_t *images, char **of_flat_tree, ulong *of_size); -static ulong fdt_relocate (ulong alloc_current, +static int fdt_relocate (struct lmb *lmb, ulong bootmap_base, cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], char **of_flat_tree, ulong *of_size); #endif @@ -55,6 +55,7 @@ static ulong fdt_relocate (ulong alloc_current, DECLARE_GLOBAL_DATA_PTR; extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); +extern ulong get_effective_memsize(void); static ulong get_sp (void); static void set_clocks_in_mhz (bd_t *kbd); @@ -62,22 +63,25 @@ void __attribute__((noinline)) do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], bootm_headers_t *images) { - ulong sp, sp_limit, alloc_current; + ulong sp; ulong initrd_start, initrd_end; ulong rd_data_start, rd_data_end, rd_len; - ulong cmd_start, cmd_end; + ulong cmd_start, cmd_end, bootmap_base; bd_t *kbd; ulong ep = 0; void (*kernel)(bd_t *, ulong, ulong, ulong, ulong); int ret; ulong of_size = 0; + struct lmb *lmb = images->lmb; #if defined(CONFIG_OF_LIBFDT) char *of_flat_tree = NULL; #endif + bootmap_base = 0; + /* * Booting a (Linux) kernel image * @@ -90,8 +94,9 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], sp = get_sp(); debug ("## Current stack ends at 0x%08lx ", sp); - alloc_current = sp_limit = get_boot_sp_limit(sp); - debug ("=> set upper limit to 0x%08lx\n", sp_limit); + /* adjust sp by 1K to be safe */ + sp -= 1024; + lmb_reserve(lmb, sp, (CFG_SDRAM_BASE + get_effective_memsize() - sp)); #if defined(CONFIG_OF_LIBFDT) /* find flattened device tree */ @@ -103,10 +108,18 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], if (!of_size) { /* allocate space and init command line */ - alloc_current = get_boot_cmdline (alloc_current, &cmd_start, &cmd_end); + ret = get_boot_cmdline (lmb, &cmd_start, &cmd_end, bootmap_base); + if (ret) { + puts("ERROR with allocation of cmdline\n"); + goto error; + } /* allocate space for kernel copy of board info */ - alloc_current = get_boot_kbd (alloc_current, &kbd); + ret = get_boot_kbd (lmb, &kbd, bootmap_base); + if (ret) { + puts("ERROR with allocation of kernel bd\n"); + goto error; + } set_clocks_in_mhz(kbd); } @@ -134,8 +147,8 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], rd_len = rd_data_end - rd_data_start; #if defined(CONFIG_OF_LIBFDT) - alloc_current = fdt_relocate (alloc_current, - cmdtp, flag, argc, argv, &of_flat_tree, &of_size); + ret = fdt_relocate (lmb, bootmap_base, + cmdtp, flag, argc, argv, &of_flat_tree, &of_size); /* * Add the chosen node if it doesn't exist, add the env and bd_t @@ -166,8 +179,9 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], } #endif /* CONFIG_OF_LIBFDT */ - alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len, - sp_limit, get_sp (), &initrd_start, &initrd_end); + ret = ramdisk_high (lmb, rd_data_start, rd_len, &initrd_start, &initrd_end); + if (ret) + goto error; #if defined(CONFIG_OF_LIBFDT) /* fixup the initrd now that we know where it should be */ @@ -488,17 +502,17 @@ error: return 1; } -static ulong fdt_relocate (ulong alloc_current, +static int fdt_relocate (struct lmb *lmb, ulong bootmap_base, cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], char **of_flat_tree, ulong *of_size) { char *fdt_blob = *of_flat_tree; ulong relocate = 0; - ulong new_alloc_current; + ulong of_len = 0; /* nothing to do */ if (*of_size == 0) - return alloc_current; + return 0; if (fdt_check_header (fdt_blob) != 0) { fdt_error ("image is not a fdt"); @@ -511,25 +525,28 @@ static ulong fdt_relocate (ulong alloc_current, relocate = 1; #endif -#ifdef CFG_BOOTMAPSZ /* * The blob must be within CFG_BOOTMAPSZ, * so we flag it to be copied if it is not. */ if (fdt_blob >= (char *)CFG_BOOTMAPSZ) relocate = 1; -#endif + + of_len = be32_to_cpu (fdt_totalsize (fdt)); /* move flattend device tree if needed */ if (relocate) { int err; - ulong of_start, of_len; - - of_len = *of_size; + ulong of_start; /* position on a 4K boundary before the alloc_current */ - of_start = alloc_current - of_len; - of_start &= ~(4096 - 1); /* align on page */ + of_start = lmb_alloc_base(lmb, of_len, 0x1000, + (CFG_BOOTMAPSZ + bootmap_base)); + + if (of_start == 0) { + puts("device tree - allocation error\n"); + goto error; + } debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n", (ulong)fdt_blob, (ulong)fdt_blob + of_len - 1, @@ -546,16 +563,14 @@ static ulong fdt_relocate (ulong alloc_current, puts ("OK\n"); *of_flat_tree = (char *)of_start; - new_alloc_current = of_start; } else { *of_flat_tree = fdt_blob; - new_alloc_current = alloc_current; + lmb_reserve(lmb, (ulong)fdt, of_len); } - return new_alloc_current; + return 0; error: - do_reset (cmdtp, flag, argc, argv); return 1; } #endif |