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| author |   Vinayak Menon <vinmenon@codeaurora.org> | 2016-02-22 19:15:44 +0530 |
|---|---|---|
| committer |   Rob Herring <robh@kernel.org> | 2016-03-03 16:50:30 -0600 |
| commit | e53b50c0cbe392c946807abf7d07615a3c588642 (patch) | |
| tree | 187c8bca53f89a5baa72e98ac6b347b6412d1fc8 /drivers/of | |
| parent | kbuild: Allow using host dtc instead of kernel's copy (diff) | |
| download | linux-dev-e53b50c0cbe392c946807abf7d07615a3c588642.tar.xz linux-dev-e53b50c0cbe392c946807abf7d07615a3c588642.zip | |
of: alloc anywhere from memblock if range not specified
early_init_dt_alloc_reserved_memory_arch passes end as 0 to
__memblock_alloc_base, when limits are not specified. But
__memblock_alloc_base takes end value of 0 as MEMBLOCK_ALLOC_ACCESSIBLE
and limits the end to memblock.current_limit. This results in regions
never being placed in HIGHMEM area, for e.g. CMA.
Let __memblock_alloc_base allocate from anywhere in memory if limits are
not specified.
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/of_reserved_mem.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 1a3556a9e9ea..ed01c0172e4a 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -32,11 +32,13 @@ int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size, phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap, phys_addr_t *res_base) { + phys_addr_t base; /* * We use __memblock_alloc_base() because memblock_alloc_base() * panic()s on allocation failure. */ - phys_addr_t base = __memblock_alloc_base(size, align, end); + end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end; + base = __memblock_alloc_base(size, align, end); if (!base) return -ENOMEM; |