Merge tag 'riscv-for-linus-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Palmer writes:
  "A Single RISC-V Fix for 4.19-rc7

   This tag contains a single patch that managed to get lost in the
   shuffle, which explains why it's so late.  This single line has been
   floating around in various patch sets for months, and fixes our DMA32
   region."

* tag 'riscv-for-linus-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  RISCV: Fix end PFN for low memory

arch/riscv/kernel/setup.c

@@ -186,7 +186,7 @@ static void __init setup_bootmem(void)
 	BUG_ON(mem_size == 0);
 
 	set_max_mapnr(PFN_DOWN(mem_size));
-	max_low_pfn = pfn_base + PFN_DOWN(mem_size);
+	max_low_pfn = memblock_end_of_DRAM();
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	setup_initrd();