MIPS: fix memory setup for platforms with PHYS_OFFSET != 0

For platforms, which use a PHYS_OFFSET != 0, symbol _end also
contains that offset. So when calling memblock_reserve() for
reserving kernel the size argument needs to be adjusted.

Fixes: bcec54bf3118 ("mips: switch to NO_BOOTMEM")
Acked-by: Mike Rapoport <[email protected]>
Signed-off-by: Thomas Bogendoerfer <[email protected]>
Signed-off-by: Paul Burton <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: James Hogan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Mike Rapoport <[email protected]>
Cc: [email protected] # v4.20+

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 8c6c48ed786a1527c22ba5b46bcdad70029e5865..d2e5a5ad0e6f5e4b90e5f1a20c7942f40a1c735d 100644 (file)
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -384,7 +384,8 @@ static void __init bootmem_init(void)
        init_initrd();
        reserved_end = (unsigned long) PFN_UP(__pa_symbol(&_end));
 
-       memblock_reserve(PHYS_OFFSET, reserved_end << PAGE_SHIFT);
+       memblock_reserve(PHYS_OFFSET,
+                        (reserved_end << PAGE_SHIFT) - PHYS_OFFSET);
 
        /*
         * max_low_pfn is not a number of pages. The number of pages