kernel: Disable CMA for aarch64 kernels

We don't have it enabled on x86_64 and according to
https://github.com/linuxkit/linuxkit/issues/2434#issuecomment-342370982
may cause the ThunderX NIC driver from working.

Note, this also disables MEMORY_ISOLATION and ARCH_HAS_GIGANTIC_PAGE
which are internal config variables no longer needed.

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>

kernel/config-4.13.x-aarch64

@@ -524,7 +524,6 @@ CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
 CONFIG_SPARSEMEM_VMEMMAP=y
 CONFIG_HAVE_MEMBLOCK=y
 CONFIG_NO_BOOTMEM=y
-CONFIG_MEMORY_ISOLATION=y
 # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_MEMORY_BALLOON=y
@@ -545,10 +544,7 @@ CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
 CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
 # CONFIG_CLEANCACHE is not set
 # CONFIG_FRONTSWAP is not set
-CONFIG_CMA=y
+# CONFIG_CMA is not set
-# CONFIG_CMA_DEBUG is not set
-CONFIG_CMA_DEBUGFS=y
-CONFIG_CMA_AREAS=7
 # CONFIG_ZPOOL is not set
 # CONFIG_ZBUD is not set
 # CONFIG_ZSMALLOC is not set
@@ -1302,17 +1298,6 @@ CONFIG_REGMAP=y
 CONFIG_REGMAP_I2C=y
 CONFIG_REGMAP_MMIO=y
 # CONFIG_DMA_SHARED_BUFFER is not set
-CONFIG_DMA_CMA=y
-
-#
-# Default contiguous memory area size:
-#
-CONFIG_CMA_SIZE_MBYTES=16
-CONFIG_CMA_SIZE_SEL_MBYTES=y
-# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
-# CONFIG_CMA_SIZE_SEL_MIN is not set
-# CONFIG_CMA_SIZE_SEL_MAX is not set
-CONFIG_CMA_ALIGNMENT=8
 CONFIG_GENERIC_ARCH_TOPOLOGY=y
 
 #
@@ -3626,7 +3611,6 @@ CONFIG_TMPFS=y
 CONFIG_TMPFS_XATTR=y
 CONFIG_HUGETLBFS=y
 CONFIG_HUGETLB_PAGE=y
-CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
 CONFIG_CONFIGFS_FS=y
 CONFIG_EFIVAR_FS=y
 CONFIG_MISC_FILESYSTEMS=y

kernel/config-4.4.x-aarch64

@@ -421,7 +421,6 @@ CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
 CONFIG_SPARSEMEM_VMEMMAP=y
 CONFIG_HAVE_MEMBLOCK=y
 CONFIG_NO_BOOTMEM=y
-CONFIG_MEMORY_ISOLATION=y
 # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_MEMORY_BALLOON=y
@@ -439,10 +438,7 @@ CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
 # CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
 # CONFIG_CLEANCACHE is not set
 # CONFIG_FRONTSWAP is not set
-CONFIG_CMA=y
+# CONFIG_CMA is not set
-# CONFIG_CMA_DEBUG is not set
-CONFIG_CMA_DEBUGFS=y
-CONFIG_CMA_AREAS=7
 # CONFIG_ZPOOL is not set
 # CONFIG_ZBUD is not set
 # CONFIG_ZSMALLOC is not set
@@ -1124,17 +1120,6 @@ CONFIG_GENERIC_CPU_AUTOPROBE=y
 CONFIG_REGMAP=y
 CONFIG_REGMAP_MMIO=y
 # CONFIG_DMA_SHARED_BUFFER is not set
-CONFIG_DMA_CMA=y
-
-#
-# Default contiguous memory area size:
-#
-CONFIG_CMA_SIZE_MBYTES=16
-CONFIG_CMA_SIZE_SEL_MBYTES=y
-# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
-# CONFIG_CMA_SIZE_SEL_MIN is not set
-# CONFIG_CMA_SIZE_SEL_MAX is not set
-CONFIG_CMA_ALIGNMENT=8
 
 #
 # Bus devices

kernel/config-4.9.x-aarch64

@@ -470,7 +470,6 @@ CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
 CONFIG_SPARSEMEM_VMEMMAP=y
 CONFIG_HAVE_MEMBLOCK=y
 CONFIG_NO_BOOTMEM=y
-CONFIG_MEMORY_ISOLATION=y
 # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_MEMORY_BALLOON=y
@@ -488,10 +487,7 @@ CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
 CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
 # CONFIG_CLEANCACHE is not set
 # CONFIG_FRONTSWAP is not set
-CONFIG_CMA=y
+# CONFIG_CMA is not set
-# CONFIG_CMA_DEBUG is not set
-CONFIG_CMA_DEBUGFS=y
-CONFIG_CMA_AREAS=7
 # CONFIG_ZPOOL is not set
 # CONFIG_ZBUD is not set
 # CONFIG_ZSMALLOC is not set
@@ -1217,17 +1213,6 @@ CONFIG_REGMAP=y
 CONFIG_REGMAP_I2C=y
 CONFIG_REGMAP_MMIO=y
 # CONFIG_DMA_SHARED_BUFFER is not set
-CONFIG_DMA_CMA=y
-
-#
-# Default contiguous memory area size:
-#
-CONFIG_CMA_SIZE_MBYTES=16
-CONFIG_CMA_SIZE_SEL_MBYTES=y
-# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
-# CONFIG_CMA_SIZE_SEL_MIN is not set
-# CONFIG_CMA_SIZE_SEL_MAX is not set
-CONFIG_CMA_ALIGNMENT=8
 
 #
 # Bus devices