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grub2/0335-Move-mips-arc-link-address.-Previous-link-address-wa.patch
Peter Jones 31004e676e Rebase to upstream snapshot.
2013-06-07 14:03:56 -04:00

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From 55cfcbed53dc997ad669d3f8cd95fbe25b6e2aab Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Wed, 24 Apr 2013 13:54:17 +0200
Subject: [PATCH 335/471] 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 <phcoder@gmail.com>
+
+ 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 <phcoder@gmail.com>
* 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
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