[PATCH] Use CSR numbers instead of names

* [PATCH] Use CSR numbers instead of names
@ 2019-08-05 13:40 Andreas Schwab
  2019-08-05 15:05 ` Anup Patel
  2019-08-06 20:49 ` Christoph Hellwig
  0 siblings, 2 replies; 12+ messages in thread
From: Andreas Schwab @ 2019-08-05 13:40 UTC (permalink / raw)
  To: linux-riscv; +Cc: linux-kernel

Fixes: f6635f873a60 ("riscv: move switch_mm to its own file")
Fixes: 671f9a3e2e24 ("RISC-V: Setup initial page tables in two stages")
Signed-off-by: Andreas Schwab <schwab@suse.de>
---
 arch/riscv/mm/context.c | 7 +------
 arch/riscv/mm/init.c    | 2 +-
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/riscv/mm/context.c b/arch/riscv/mm/context.c
index 89ceb3cbe218..beeb5d7f92ea 100644
--- a/arch/riscv/mm/context.c
+++ b/arch/riscv/mm/context.c
@@ -57,12 +57,7 @@ void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	cpumask_clear_cpu(cpu, mm_cpumask(prev));
 	cpumask_set_cpu(cpu, mm_cpumask(next));
 
-	/*
-	 * 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);
+	csr_write(CSR_SATP, virt_to_pfn(next->pgd) | SATP_MODE);
 	local_flush_tlb_all();
 
 	flush_icache_deferred(next);
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 42bf939693d3..238fc4157f8d 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -435,7 +435,7 @@ static void __init setup_vm_final(void)
 	clear_fixmap(FIX_PMD);
 
 	/* Move to swapper page table */
-	csr_write(sptbr, PFN_DOWN(__pa(swapper_pg_dir)) | SATP_MODE);
+	csr_write(CSR_SATP, PFN_DOWN(__pa(swapper_pg_dir)) | SATP_MODE);
 	local_flush_tlb_all();
 }
 
-- 
2.22.0


-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

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