imx6 memory range 0x80000000 - 0xC0000000, arm32
itself supports 2G/2G partitioning. If it is set
to 3G/1G partitioning, part of the memory will be
allocated to highmem. imx6 needs to save 320M cma
memory. When cma is active, if pfn is not in a zone,
it will fail. Since cma has reserved a range, when
the network card allocates queue buff, it will still
be allocated from cma_allocator_alloc(), and allocation
failure will occur.
fec_enet_free_buffers
dma_alloc_coherent
dma_alloc_attrs
dma_direct_alloc
arch_dma_alloc
__dma_alloc
cma_allocator_alloc
Signed-off-by: Xiaolei Wang <xiaolei.w...@windriver.com>
---
bsp/nxp-imx6/nxp-imx6.cfg | 1 +
1 file changed, 1 insertion(+)
diff --git a/bsp/nxp-imx6/nxp-imx6.cfg b/bsp/nxp-imx6/nxp-imx6.cfg
index e43d5a92..ac9edd3d 100644
--- a/bsp/nxp-imx6/nxp-imx6.cfg
+++ b/bsp/nxp-imx6/nxp-imx6.cfg
@@ -2,6 +2,7 @@ CONFIG_ARCH_MXC=y
CONFIG_SOC_IMX6UL=y
CONFIG_SOC_IMX6Q=y
CONFIG_SOC_IMX6SX=y
+CONFIG_VMSPLIT_2G=y
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_USER_HELPER=y
--
2.25.1
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