Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c
index 8546922..399f3d0 100644
--- a/arch/m68k/sun3/sun3dvma.c
+++ b/arch/m68k/sun3/sun3dvma.c
@@ -7,7 +7,7 @@
  * Contains common routines for sun3/sun3x DVMA management.
  */
 
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -267,7 +267,11 @@
 
 	list_add(&(hole->list), &hole_list);
 
-	iommu_use = alloc_bootmem(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long));
+	iommu_use = memblock_alloc(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long),
+				   SMP_CACHE_BYTES);
+	if (!iommu_use)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      IOMMU_TOTAL_ENTRIES * sizeof(unsigned long));
 
 	dvma_unmap_iommu(DVMA_START, DVMA_SIZE);