[coreboot] [commit] r5181 - in trunk/src: arch/i386 cpu/x86/lapic mainboard/technexion/tim5690
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svn at coreboot.org
Mon Mar 1 18:16:06 CET 2010
Author: oxygene
Date: Mon Mar 1 18:16:06 2010
New Revision: 5181
URL: http://tracker.coreboot.org/trac/coreboot/changeset/5181
Log:
- Simplify stack size determination: MAX_CPUS * STACK_SIZE
- Check that this doesn't run into vga/oprom/bios area at link time
- Avoid overly complicated and not well understood hack which avoids that
area by leaving a hole in the stack area.
- Adapt technexion/tim5690 to put ramstage at 1MB
Signed-off-by: Patrick Georgi <patrick.georgi at coresystems.de>
Acked-by: Myles Watson <mylesgw at gmail.com>
Modified:
trunk/src/arch/i386/coreboot_ram.ld
trunk/src/cpu/x86/lapic/lapic_cpu_init.c
trunk/src/mainboard/technexion/tim5690/Kconfig
Modified: trunk/src/arch/i386/coreboot_ram.ld
==============================================================================
--- trunk/src/arch/i386/coreboot_ram.ld Mon Mar 1 11:56:51 2010 (r5180)
+++ trunk/src/arch/i386/coreboot_ram.ld Mon Mar 1 18:16:06 2010 (r5181)
@@ -100,11 +100,11 @@
_ebss = .;
_end = .;
. = ALIGN(CONFIG_STACK_SIZE);
+
_stack = .;
.stack . : {
/* Reserve a stack for each possible cpu */
- /* the stack for ap will be put after pgtbl in 1M to CONFIG_RAMTOP range when VGA and ROM_RUN and CONFIG_RAMTOP>1M*/
- . += ((CONFIG_CONSOLE_VGA || CONFIG_PCI_ROM_RUN)&&(CONFIG_RAMBASE<0x100000)&&(CONFIG_RAMTOP>0x100000) ) ? CONFIG_STACK_SIZE : (CONFIG_MAX_CPUS*CONFIG_STACK_SIZE);
+ . += CONFIG_MAX_CPUS*CONFIG_STACK_SIZE;
}
_estack = .;
_heap = .;
@@ -114,6 +114,10 @@
. = ALIGN(4);
}
_eheap = .;
+
+ /* Avoid running into 0xa0000-0xfffff */
+ _bogus = ASSERT(CONFIG_RAMBASE >= 0x100000 || _eheap < 0xa0000, "Please move RAMBASE to 1MB");
+
/* The ram segment
* This is all address of the memory resident copy of coreboot.
*/
Modified: trunk/src/cpu/x86/lapic/lapic_cpu_init.c
==============================================================================
--- trunk/src/cpu/x86/lapic/lapic_cpu_init.c Mon Mar 1 11:56:51 2010 (r5180)
+++ trunk/src/cpu/x86/lapic/lapic_cpu_init.c Mon Mar 1 18:16:06 2010 (r5181)
@@ -246,25 +246,7 @@
index = ++last_cpu_index;
/* Find end of the new processors stack */
-#if (CONFIG_RAMTOP>0x100000) && (CONFIG_RAMBASE < 0x100000) && ((CONFIG_CONSOLE_VGA==1) || (CONFIG_PCI_ROM_RUN == 1))
- if(index<1) { // only keep bsp on low
- stack_end = ((unsigned long)_estack) - (CONFIG_STACK_SIZE*index) - sizeof(struct cpu_info);
- } else {
- // for all APs, let use stack after pgtbl, 20480 is the pgtbl size for every cpu
- stack_end = 0x100000+(20480 + CONFIG_STACK_SIZE)*CONFIG_MAX_CPUS - (CONFIG_STACK_SIZE*index);
-#if (0x100000+(20480 + CONFIG_STACK_SIZE)*CONFIG_MAX_CPUS) > (CONFIG_RAMTOP)
- #warning "We may need to increase CONFIG_RAMTOP, it need to be more than (0x100000+(20480 + CONFIG_STACK_SIZE)*CONFIG_MAX_CPUS)\n"
-#endif
- if(stack_end > (CONFIG_RAMTOP)) {
- printk_debug("start_cpu: Please increase the CONFIG_RAMTOP more than %luK\n", stack_end);
- die("Can not go on\n");
- }
- stack_end -= sizeof(struct cpu_info);
- }
-#else
stack_end = ((unsigned long)_estack) - (CONFIG_STACK_SIZE*index) - sizeof(struct cpu_info);
-#endif
-
/* Record the index and which cpu structure we are using */
info = (struct cpu_info *)stack_end;
Modified: trunk/src/mainboard/technexion/tim5690/Kconfig
==============================================================================
--- trunk/src/mainboard/technexion/tim5690/Kconfig Mon Mar 1 11:56:51 2010 (r5180)
+++ trunk/src/mainboard/technexion/tim5690/Kconfig Mon Mar 1 18:16:06 2010 (r5181)
@@ -127,5 +127,5 @@
config RAMBASE
hex
- default 0x4000
+ default 0x100000
depends on BOARD_TECHNEXION_TIM5690
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