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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>
This commit is contained in:
Graf Yang 2009-05-25 06:40:42 +00:00 committed by Mike Frysinger
parent c72aa0794a
commit 89ecd50691
1 changed files with 10 additions and 2 deletions
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12
arch/blackfin/mm/sram-alloc.c
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@ -83,6 +83,14 @@ static struct kmem_cache *sram_piece_cache;
static void __init l1sram_init(void) static void __init l1sram_init(void)
{ {
unsigned int cpu; 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) { for (cpu = 0; cpu < num_possible_cpus(); ++cpu) {
per_cpu(free_l1_ssram_head, cpu).next = per_cpu(free_l1_ssram_head, cpu).next =
kmem_cache_alloc(sram_piece_cache, GFP_KERNEL); kmem_cache_alloc(sram_piece_cache, GFP_KERNEL);
@ -91,8 +99,8 @@ static void __init l1sram_init(void)
return; 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->paddr = (void *)get_l1_scratch_start_cpu(cpu) + reserve;
per_cpu(free_l1_ssram_head, cpu).next->size = L1_SCRATCH_LENGTH; 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->pid = 0;
per_cpu(free_l1_ssram_head, cpu).next->next = NULL; per_cpu(free_l1_ssram_head, cpu).next->next = NULL;