riscv: don't read back satp in paging_init

init_mm.pgd (aka swapped_pgd) gets relocated like all other kernel
symbols by the elf loader, so there is no need to reload it from satp.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Christoph Hellwig 2018-01-09 15:00:36 +01:00 committed by Palmer Dabbelt
parent 0ca7a0b7c1
commit 372def1f93
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@ -41,8 +41,6 @@ void setup_zero_page(void)
void __init paging_init(void)
{
init_mm.pgd = (pgd_t *)pfn_to_virt(csr_read(sptbr));
setup_zero_page();
local_flush_tlb_all();
zone_sizes_init();