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riscv: rename sptbr to satp

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satp is the name used by the current privileged spec 1.10, use it
instead of the old name.  The most recent release binutils release
(2.29) doesn't know about the satp name yet, so stick to the name from
the previous privileged ISA release and comment on the fact.

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 15:00:32 +01:00
committed by Palmer Dabbelt
parent 372def1f93
commit 7549cdf59d
4 changed files with 20 additions and 11 deletions
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7
arch/riscv/include/asm/mmu_context.h
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@@ -41,7 +41,12 @@ static inline void destroy_context(struct mm_struct *mm)
static inline void set_pgdir(pgd_t *pgd)
{
csr_write(sptbr, virt_to_pfn(pgd) | SPTBR_MODE);
/*
* Use the old spbtr name instead of using the current satp
* name to support binutils 2.29 which doesn't know about the
* privileged ISA 1.10 yet.
*/
csr_write(sptbr, virt_to_pfn(next->pgd) | SATP_MODE);
}
/*