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| author | Bin Meng <bmeng.cn@gmail.com> | 2021-06-27 16:51:17 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-07-22 08:17:41 +0300 |
| commit | d0e4dae74470fb709fc0ab61862c317938f4cc4d (patch) | |
| tree | aff92b9e0fb6e560ca5b41f544f2387f24ccf8ba /arch/riscv/mm | |
| parent | 6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff) | |
| download | linux-d0e4dae74470fb709fc0ab61862c317938f4cc4d.tar.xz | |
riscv: Fix 32-bit RISC-V boot failure
Commit dd2d082b5760 ("riscv: Cleanup setup_bootmem()") adjusted
the calling sequence in setup_bootmem(), which invalidates the fix
commit de043da0b9e7 ("RISC-V: Fix usage of memblock_enforce_memory_limit")
did for 32-bit RISC-V unfortunately.
So now 32-bit RISC-V does not boot again when testing booting kernel
on QEMU 'virt' with '-m 2G', which was exactly what the original
commit de043da0b9e7 ("RISC-V: Fix usage of memblock_enforce_memory_limit")
tried to fix.
Fixes: dd2d082b5760 ("riscv: Cleanup setup_bootmem()")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/mm')
| -rw-r--r-- | arch/riscv/mm/init.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 4faf8bd157ea..0fc72603c699 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -123,7 +123,7 @@ void __init setup_bootmem(void) { phys_addr_t vmlinux_end = __pa_symbol(&_end); phys_addr_t vmlinux_start = __pa_symbol(&_start); - phys_addr_t dram_end = memblock_end_of_DRAM(); + phys_addr_t dram_end; phys_addr_t max_mapped_addr = __pa(~(ulong)0); #ifdef CONFIG_XIP_KERNEL @@ -146,6 +146,8 @@ void __init setup_bootmem(void) #endif memblock_reserve(vmlinux_start, vmlinux_end - vmlinux_start); + dram_end = memblock_end_of_DRAM(); + /* * memblock allocator is not aware of the fact that last 4K bytes of * the addressable memory can not be mapped because of IS_ERR_VALUE |