cma: Delay non-placed memblocks until after all allocations

CMA is now responsible for almost all memory reservation/removal.
Some regions are at fixed locations, some are placed dynamically.
We need to place all fixed regions first before trying to place
dynamic regions to avoid overlap. Additionally, allow an
architectural callback after all removals/fixed location has
happened to potentially update any relevant limits.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
cma: Call dma_contiguous_early_fixup after allocation

Commit (cma: Delay non-placed memblocks until after all allocations)
delayed calling memblock_alloc until later but didn't move the
fixup. Make sure to call the fixup after allocation of the
memblock.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
cma: Add support for different size_cells and address_cells

Currently, the CMA flat device tree code does not take into account
targets that may specify size_cells and address_cells > 1. This will
lead to unsuccessful parsing. Add support for taking into account
nodes that may specify size_cells and address_cells explicitly.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
drivers: dma-contiguous: Don't redefine SZ_1M

Use the definition from linux/sizes.h instead.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
cma: Add support for status in DT nodes

CMA scans the flattened devicetree to reserve memory early. Check
for the status of a DT node to possibly skip initialization.

Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>