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| author | Mike Frysinger <vapier.adi@gmail.com> | 2008-02-02 15:53:17 +0800 |
|---|---|---|
| committer | Bryan Wu <bryan.wu@analog.com> | 2008-02-02 15:53:17 +0800 |
| commit | b7627acc432a36072253bb1288f56e78c7d9423e (patch) | |
| tree | 1d79f1c3a68c21ec1b51428a88d8f5149dbbbbf4 /arch/blackfin/kernel/setup.c | |
| parent | 80f31c8a03d2f0644d0ceaf14e7e0108a007c962 (diff) | |
| download | blackbird-op-linux-b7627acc432a36072253bb1288f56e78c7d9423e.tar.gz blackbird-op-linux-b7627acc432a36072253bb1288f56e78c7d9423e.zip | |
[Blackfin] arch: move the init sections to the end of memory
Move the init sections to the end of memory so that after they
are free, run time memory is all continugous - this should help decrease
memory fragementation.
When doing this, we also pack some of the other sections a little closer
together, to make sure we don't waste memory. To make this happen,
we need to rename the .data.init_task section to .init_task.data, so
it doesn't get picked up by the linker script glob.
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'arch/blackfin/kernel/setup.c')
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index aca5e6e5bbdd..060080789495 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -427,7 +427,7 @@ static __init void parse_cmdline_early(char *cmdline_p) static __init void memory_setup(void) { _rambase = (unsigned long)_stext; - _ramstart = (unsigned long)__bss_stop; + _ramstart = (unsigned long)_end; if (DMA_UNCACHED_REGION > (_ramend - _ramstart)) { console_init(); @@ -489,7 +489,7 @@ static __init void memory_setup(void) } /* Relocate MTD image to the top of memory after the uncached memory area */ - dma_memcpy((char *)memory_end, __bss_stop, mtd_size); + dma_memcpy((char *)memory_end, _end, mtd_size); memory_mtd_start = memory_end; _ebss = memory_mtd_start; /* define _ebss for compatible */ @@ -528,13 +528,13 @@ static __init void memory_setup(void) printk(KERN_INFO "Board Memory: %ldMB\n", physical_mem_end >> 20); printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", _ramend >> 20); - printk( KERN_INFO "Memory map:\n" + printk(KERN_INFO "Memory map:\n" KERN_INFO " text = 0x%p-0x%p\n" KERN_INFO " rodata = 0x%p-0x%p\n" + KERN_INFO " bss = 0x%p-0x%p\n" KERN_INFO " data = 0x%p-0x%p\n" KERN_INFO " stack = 0x%p-0x%p\n" KERN_INFO " init = 0x%p-0x%p\n" - KERN_INFO " bss = 0x%p-0x%p\n" KERN_INFO " available = 0x%p-0x%p\n" #ifdef CONFIG_MTD_UCLINUX KERN_INFO " rootfs = 0x%p-0x%p\n" @@ -544,12 +544,12 @@ static __init void memory_setup(void) #endif , _stext, _etext, __start_rodata, __end_rodata, + __bss_start, __bss_stop, _sdata, _edata, (void *)&init_thread_union, (void *)((int)(&init_thread_union) + 0x2000), - __init_begin, __init_end, - __bss_start, __bss_stop, - (void *)_ramstart, (void *)memory_end + __init_begin, __init_end, + (void *)_ramstart, (void *)memory_end #ifdef CONFIG_MTD_UCLINUX , (void *)memory_mtd_start, (void *)(memory_mtd_start + mtd_size) #endif |
