diff options
Diffstat (limited to 'drivers/of/of_reserved_mem.c')
| -rw-r--r-- | drivers/of/of_reserved_mem.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 2b2291bfc38f..06af99f64ad8 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -128,8 +128,15 @@ static int __init __reserved_mem_alloc_size(unsigned long node, } /* Need adjust the alignment to satisfy the CMA requirement */ - if (IS_ENABLED(CONFIG_CMA) && of_flat_dt_is_compatible(node, "shared-dma-pool")) - align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order)); + if (IS_ENABLED(CONFIG_CMA) + && of_flat_dt_is_compatible(node, "shared-dma-pool") + && of_get_flat_dt_prop(node, "reusable", NULL) + && !of_get_flat_dt_prop(node, "no-map", NULL)) { + unsigned long order = + max_t(unsigned long, MAX_ORDER - 1, pageblock_order); + + align = max(align, (phys_addr_t)PAGE_SIZE << order); + } prop = of_get_flat_dt_prop(node, "alloc-ranges", &len); if (prop) { |