From 55cfcbed53dc997ad669d3f8cd95fbe25b6e2aab Mon Sep 17 00:00:00 2001 From: Vladimir 'phcoder' Serbinenko Date: Wed, 24 Apr 2013 13:54:17 +0200 Subject: [PATCH 335/482] Move mips-arc link address. Previous link address was chosen in belief that RAM on SGI platforms grows down while in fact it grows up from an unusual base. --- ChangeLog | 6 ++++++ grub-core/Makefile.core.def | 6 +++--- grub-core/kern/mips/arc/init.c | 14 +++++++++----- grub-core/kern/mips/startup.S | 2 -- include/grub/mips/arc/memory.h | 2 +- include/grub/offsets.h | 2 +- util/grub-mkimage.c | 11 ++++------- 7 files changed, 24 insertions(+), 19 deletions(-) diff --git a/ChangeLog b/ChangeLog index 2150d3d..39bb827 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2013-04-24 Vladimir Serbinenko + + Move mips-arc link address. Previous link address was chosen + in belief that RAM on SGI platforms grows down while in fact it + grows up from an unusual base. + 2013-04-21 Vladimir Serbinenko * grub-core/disk/arc/arcdisk.c (grub_arcdisk_iterate_iter): diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def index 7269609..8f36ea0 100644 --- a/grub-core/Makefile.core.def +++ b/grub-core/Makefile.core.def @@ -73,7 +73,7 @@ kernel = { mips_loongson_ldflags = '-Wl,-Ttext,0x80200000'; powerpc_ieee1275_ldflags = '-Wl,-Ttext,0x200000'; sparc64_ieee1275_ldflags = '-Wl,-Ttext,0x4400'; - mips_arc_ldflags = '-Wl,-Ttext,0x8bd00000'; + mips_arc_ldflags = '-Wl,-Ttext,0x88200000'; mips_qemu_mips_ldflags = '-Wl,-Ttext,0x80200000'; mips_loongson_cppflags = '-DUSE_ASCII_FAILBACK'; @@ -372,7 +372,7 @@ image = { objcopyflags = '-O binary'; mips_loongson_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000'; mips_qemu_mips_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000'; - mips_arc_ldflags = '-static-libgcc -Wl,-Ttext,0x8bc00000'; + mips_arc_ldflags = '-static-libgcc -Wl,-Ttext,0x88100000'; ldadd = '-lgcc'; cflags = '-Wno-unreachable-code -static-libgcc'; enable = mips; @@ -388,7 +388,7 @@ image = { objcopyflags = '-O binary'; mips_loongson_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000'; mips_qemu_mips_ldflags = '-static-libgcc -Wl,-Ttext,0x80100000'; - mips_arc_ldflags = '-static-libgcc -Wl,-Ttext,0x8bc00000'; + mips_arc_ldflags = '-static-libgcc -Wl,-Ttext,0x88100000'; ldadd = '-lgcc'; cflags = '-static-libgcc'; enable = mips; diff --git a/grub-core/kern/mips/arc/init.c b/grub-core/kern/mips/arc/init.c index f63ac6d..011c63f 100644 --- a/grub-core/kern/mips/arc/init.c +++ b/grub-core/kern/mips/arc/init.c @@ -128,12 +128,16 @@ grub_machine_mmap_iterate (grub_memory_hook_t hook, void *hook_data) extern grub_uint32_t grub_total_modules_size __attribute__ ((section(".text"))); grub_addr_t grub_modbase; +extern char _end[]; + void grub_machine_init (void) { struct grub_arc_memory_descriptor *cur = NULL; + grub_addr_t modend; - grub_modbase = GRUB_KERNEL_MIPS_ARC_LINK_ADDR - grub_total_modules_size; + grub_modbase = ALIGN_UP ((grub_addr_t) _end, GRUB_KERNEL_MACHINE_MOD_ALIGN); + modend = grub_modbase + grub_total_modules_size; grub_console_init_early (); /* FIXME: measure this. */ @@ -153,10 +157,10 @@ grub_machine_init (void) start = ((grub_uint64_t) cur->start_page) << 12; end = ((grub_uint64_t) cur->num_pages) << 12; end += start; - if ((grub_uint64_t) end > ((GRUB_KERNEL_MIPS_ARC_LINK_ADDR - - grub_total_modules_size) & 0x1fffffff)) - end = ((GRUB_KERNEL_MIPS_ARC_LINK_ADDR - grub_total_modules_size) - & 0x1fffffff); + if ((grub_uint64_t) start < (modend & 0x1fffffff)) + start = (modend & 0x1fffffff); + if ((grub_uint64_t) end > 0x20000000) + end = 0x20000000; if (end > start) grub_mm_init_region ((void *) (grub_addr_t) (start | 0x80000000), end - start); diff --git a/grub-core/kern/mips/startup.S b/grub-core/kern/mips/startup.S index 2476038..35a11bc 100644 --- a/grub-core/kern/mips/startup.S +++ b/grub-core/kern/mips/startup.S @@ -73,7 +73,6 @@ cont: #endif /* Move the modules out of BSS. */ -#ifndef GRUB_MACHINE_ARC lui $t2, %hi(__bss_start) addiu $t2, %lo(__bss_start) @@ -103,7 +102,6 @@ modulesmovcont: b modulesmovcont addiu $t3, $t3, -1 modulesmovdone: -#endif /* Clean BSS. */ diff --git a/include/grub/mips/arc/memory.h b/include/grub/mips/arc/memory.h index b960d2a..68b425f 100644 --- a/include/grub/mips/arc/memory.h +++ b/include/grub/mips/arc/memory.h @@ -19,7 +19,7 @@ #ifndef GRUB_MEMORY_MACHINE_HEADER #define GRUB_MEMORY_MACHINE_HEADER 1 -#define GRUB_MACHINE_MEMORY_STACK_HIGH 0x8bfffff0 +#define GRUB_MACHINE_MEMORY_STACK_HIGH 0x881ffff0 #ifndef ASM_FILE diff --git a/include/grub/offsets.h b/include/grub/offsets.h index bce755d..1e673d5 100644 --- a/include/grub/offsets.h +++ b/include/grub/offsets.h @@ -80,7 +80,7 @@ #define GRUB_DECOMPRESSOR_MIPS_QEMU_MIPS_UNCOMPRESSED_ADDR 0x10 #define GRUB_KERNEL_MIPS_QEMU_MIPS_TOTAL_MODULE_SIZE 0x08 -#define GRUB_KERNEL_MIPS_ARC_LINK_ADDR 0x8bd00000 +#define GRUB_KERNEL_MIPS_ARC_LINK_ADDR 0x88200000 #define GRUB_KERNEL_MIPS_ARC_LINK_ALIGN 32 diff --git a/util/grub-mkimage.c b/util/grub-mkimage.c index 0acc61e..41f795a 100644 --- a/util/grub-mkimage.c +++ b/util/grub-mkimage.c @@ -387,8 +387,7 @@ struct image_target_desc image_targets[] = .voidp_sizeof = 4, .bigendian = 1, .id = IMAGE_MIPS_ARC, - .flags = (PLATFORM_FLAGS_DECOMPRESSORS - | PLATFORM_FLAGS_MODULES_BEFORE_KERNEL), + .flags = PLATFORM_FLAGS_DECOMPRESSORS, .total_module_size = GRUB_KERNEL_MIPS_ARC_TOTAL_MODULE_SIZE, .decompressor_compressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_COMPRESSED_SIZE, .decompressor_uncompressed_size = GRUB_DECOMPRESSOR_MIPS_LOONGSON_UNCOMPRESSED_SIZE, @@ -1522,12 +1521,10 @@ generate_image (const char *dir, const char *prefix, program_size = ALIGN_ADDR (core_size); if (comp == COMPRESSION_NONE) - target_addr = (image_target->link_addr - - total_module_size - decompress_size); + target_addr = (image_target->link_addr - decompress_size); else - target_addr = (image_target->link_addr - - ALIGN_UP(total_module_size + core_size, 1048576) - - (1 << 20)); + target_addr = ALIGN_UP (image_target->link_addr + + kernel_size + total_module_size, 32); ecoff_img = xmalloc (program_size + sizeof (*head) + sizeof (*section)); grub_memset (ecoff_img, 0, program_size + sizeof (*head) + sizeof (*section)); -- 1.8.2.1