From: Atish Patra <Atish.Patra@wdc.com>
To: "hch@lst.de" <hch@lst.de>,
"paul.walmsley@sifive.com" <paul.walmsley@sifive.com>,
"palmer@sifive.com" <palmer@sifive.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
Damien Le Moal <Damien.LeMoal@wdc.com>,
"linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 05/17] riscv: use CSR_SATP instead of the legacy sptbr name in switch_mm
Date: Mon, 1 Jul 2019 18:53:21 +0000 [thread overview]
Message-ID: <3cc7a8734991bbb3b7576b34b7038ca9bc67c0c0.camel@wdc.com> (raw)
In-Reply-To: <20190624054311.30256-6-hch@lst.de>
On Mon, 2019-06-24 at 07:42 +0200, Christoph Hellwig wrote:
> Switch to our own constant for the satp register instead of using
> the old name from a legacy version of the privileged spec.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> arch/riscv/mm/context.c | 7 +------
> 1 file changed, 1 insertion(+), 6 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);
Reviewed-by: Atish Patra <atish.patra@wdc.com>
--
Regards,
Atish
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next prev parent reply other threads:[~2019-07-01 18:53 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-24 5:42 RISC-V nommu support v2 Christoph Hellwig
2019-06-24 5:42 ` [PATCH 01/17] mm: provide a print_vma_addr stub for !CONFIG_MMU Christoph Hellwig
2019-06-24 5:42 ` [PATCH 02/17] mm: stub out all of swapops.h " Christoph Hellwig
2019-06-24 5:42 ` [PATCH 03/17] mm/nommu: fix the MAP_UNINITIALIZED flag Christoph Hellwig
2019-06-24 5:42 ` [PATCH 04/17] irqchip/sifive-plic: set max threshold for ignored handlers Christoph Hellwig
2019-06-24 5:42 ` [PATCH 05/17] riscv: use CSR_SATP instead of the legacy sptbr name in switch_mm Christoph Hellwig
2019-07-01 18:53 ` Atish Patra [this message]
2019-06-24 5:43 ` [PATCH 06/17] riscv: refactor the IPI code Christoph Hellwig
2019-06-24 5:43 ` [PATCH 07/17] riscv: abstract out CSR names for supervisor vs machine mode Christoph Hellwig
2019-07-01 18:37 ` Atish Patra
2019-06-24 5:43 ` [PATCH 08/17] riscv: improve the default power off implementation Christoph Hellwig
2019-07-01 21:07 ` Atish Patra
2019-06-24 5:43 ` [PATCH 09/17] riscv: provide a flat entry loader Christoph Hellwig
2019-06-24 5:43 ` [PATCH 10/17] riscv: read the hart ID from mhartid on boot Christoph Hellwig
2019-07-01 21:15 ` Atish Patra
2019-06-24 5:43 ` [PATCH 11/17] riscv: provide native clint access for M-mode Christoph Hellwig
2019-06-24 5:43 ` [PATCH 12/17] riscv: implement remote sfence.i natively " Christoph Hellwig
2019-06-24 5:43 ` [PATCH 13/17] riscv: poison SBI calls " Christoph Hellwig
2019-06-24 5:43 ` [PATCH 14/17] riscv: don't allow selecting SBI-based drivers " Christoph Hellwig
2019-06-24 5:43 ` [PATCH 15/17] riscv: use the correct interrupt levels " Christoph Hellwig
2019-06-24 5:43 ` [PATCH 16/17] riscv: clear the instruction cache and all registers when booting Christoph Hellwig
2019-07-01 21:26 ` Atish Patra
2019-07-08 8:26 ` Palmer Dabbelt
2019-08-13 15:40 ` Christoph Hellwig
2019-08-13 15:37 ` hch
2019-06-24 5:43 ` [PATCH 17/17] riscv: add nommu support Christoph Hellwig
2019-07-12 14:52 ` Vladimir Murzin
2019-06-24 11:47 ` RISC-V nommu support v2 Vladimir Murzin
2019-06-24 11:54 ` Christoph Hellwig
2019-06-24 13:08 ` Vladimir Murzin
2019-06-24 13:16 ` Christoph Hellwig
2019-06-25 7:31 ` Palmer Dabbelt
2019-06-25 12:37 ` Vladimir Murzin
2019-07-01 6:56 ` Christoph Hellwig
2019-07-01 16:06 ` Paul Walmsley
-- strict thread matches above, loose matches on Subject: below --
2019-06-10 22:16 RISC-V nommu support Christoph Hellwig
2019-06-10 22:16 ` [PATCH 05/17] riscv: use CSR_SATP instead of the legacy sptbr name in switch_mm Christoph Hellwig
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