RISC-V: Add kernel image sections to the resource tree

This patch (previously part of my kexec/kdump series) populates
/proc/iomem with the various sections of the kernel image. We need
this for kexec-tools to be able to prepare the crashkernel image
for kdump to work. Since resource tree initialization is not
related to memory initialization I added the code to kernel/setup.c
and removed the original code (derived from the arm64 tree) from
mm/init.c.

Signed-off-by: Nick Kossifidis <mick@ics.forth.gr>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

1 files changed, 0 insertions, 27 deletions

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index ea933b789a88..e3c1fc4d5d03 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -625,39 +625,12 @@ void mark_rodata_ro(void)
 }
 #endif
 
-static void __init resource_init(void)
-{
-	struct memblock_region *region;
-
-	for_each_mem_region(region) {
-		struct resource *res;
-
-		res = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
-		if (!res)
-			panic("%s: Failed to allocate %zu bytes\n", __func__,
-			      sizeof(struct resource));
-
-		if (memblock_is_nomap(region)) {
-			res->name = "reserved";
-			res->flags = IORESOURCE_MEM;
-		} else {
-			res->name = "System RAM";
-			res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
-		}
-		res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
-		res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;
-
-		request_resource(&iomem_resource, res);
-	}
-}
-
 void __init paging_init(void)
 {
 	setup_vm_final();
 	sparse_init();
 	setup_zero_page();
 	zone_sizes_init();
-	resource_init();
 }
 
 #ifdef CONFIG_SPARSEMEM_VMEMMAP