diff options
| author | Graf Yang <graf.yang@analog.com> | 2009-05-25 06:40:42 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-06-12 06:11:51 -0400 |
| commit | 89ecd506917ba6e86ede072efbef6c69d01db4dd (patch) | |
| tree | 3e98b210fde164a21cccbf27a769cf07b7f4857a /arch/blackfin/mm | |
| parent | c72aa0794a0ecc0b87ba9d5546215c26c8c80668 (diff) | |
| download | lwn-89ecd506917ba6e86ede072efbef6c69d01db4dd.tar.gz lwn-89ecd506917ba6e86ede072efbef6c69d01db4dd.zip | |
Blackfin: fix handling of initial L1 reservation
This restores some L1 reservation logic that was lost during the Blackfin
SMP merge.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/mm')
| -rw-r--r-- | arch/blackfin/mm/sram-alloc.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c index 36376d8418fa..fa54a4ee3d6c 100644 --- a/arch/blackfin/mm/sram-alloc.c +++ b/arch/blackfin/mm/sram-alloc.c @@ -83,6 +83,14 @@ static struct kmem_cache *sram_piece_cache; static void __init l1sram_init(void) { unsigned int cpu; + unsigned long reserve; + +#ifdef CONFIG_SMP + reserve = 0; +#else + reserve = sizeof(struct l1_scratch_task_info); +#endif + for (cpu = 0; cpu < num_possible_cpus(); ++cpu) { per_cpu(free_l1_ssram_head, cpu).next = kmem_cache_alloc(sram_piece_cache, GFP_KERNEL); @@ -91,8 +99,8 @@ static void __init l1sram_init(void) return; } - per_cpu(free_l1_ssram_head, cpu).next->paddr = (void *)get_l1_scratch_start_cpu(cpu); - per_cpu(free_l1_ssram_head, cpu).next->size = L1_SCRATCH_LENGTH; + per_cpu(free_l1_ssram_head, cpu).next->paddr = (void *)get_l1_scratch_start_cpu(cpu) + reserve; + per_cpu(free_l1_ssram_head, cpu).next->size = L1_SCRATCH_LENGTH - reserve; per_cpu(free_l1_ssram_head, cpu).next->pid = 0; per_cpu(free_l1_ssram_head, cpu).next->next = NULL; |