diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index c2cdf6500f75..4e7d1182e8a3 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -358,7 +358,7 @@ void __init dma_contiguous_remap(void) if (end > arm_lowmem_limit) end = arm_lowmem_limit; if (start >= end) - return; + continue; map.pfn = __phys_to_pfn(start); map.virtual = __phys_to_virt(start); @@ -423,7 +423,7 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page) unsigned int pageno; unsigned long flags; void *ptr = NULL; - size_t align; + unsigned long align_mask; if (!pool->vaddr) { WARN(1, "coherent pool not initialised!\n"); @@ -435,11 +435,11 @@ static void *__alloc_from_pool(size_t size, struct page **ret_page) * small, so align them to their order in pages, minimum is a page * size. This helps reduce fragmentation of the DMA space. */ - align = PAGE_SIZE << get_order(size); + align_mask = (1 << get_order(size)) - 1; spin_lock_irqsave(&pool->lock, flags); pageno = bitmap_find_next_zero_area(pool->bitmap, pool->nr_pages, - 0, count, (1 << align) - 1); + 0, count, align_mask); if (pageno < pool->nr_pages) { bitmap_set(pool->bitmap, pageno, count); ptr = pool->vaddr + PAGE_SIZE * pageno; @@ -648,12 +648,12 @@ void arm_dma_free(struct device *dev, size_t size, void *cpu_addr, if (arch_is_coherent() || nommu()) { __dma_free_buffer(page, size); + } else if (__free_from_pool(cpu_addr, size)) { + return; } else if (!IS_ENABLED(CONFIG_CMA)) { __dma_free_remap(cpu_addr, size); __dma_free_buffer(page, size); } else { - if (__free_from_pool(cpu_addr, size)) - return; /* * Non-atomic allocations cannot be freed with IRQs disabled */ |