From: Vineet Gupta <vgupta@kernel.org>
To: Mike Rapoport <rppt@kernel.org>, Vineet Gupta <vgupta@kernel.org>
Cc: linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Anshuman Khandual <anshuman.khandual@arm.com>
Subject: Re: [PATCH 07/18] ARC: ioremap: use more commonly used PAGE_KERNEL based uncached flag
Date: Wed, 11 Aug 2021 11:58:27 -0700 [thread overview]
Message-ID: <07c12487-dc65-9d2a-71a5-65b47c98a460@kernel.org> (raw)
In-Reply-To: <YRNdiDnMjQ2hKzIV@kernel.org>
On 8/10/21 10:18 PM, Mike Rapoport wrote:
>> - return ioremap_prot(paddr, size, pgprot_val(PAGE_KERNEL_NO_CACHE));
>> + return ioremap_prot(paddr, size,
>> + pgprot_val(pgprot_noncached(PAGE_KERNEL)));
> But this becomes _PAGE_CACHEABLE now. What did I miss?
We now use pgprot_noncached()
arch/arc/include/asm/pgtable.h:30:#define pgprot_noncached(prot)
(__pgprot(pgprot_val(prot) & ~_PAGE_CACHEABLE))
-Vineet
next prev parent reply other threads:[~2021-08-11 18:58 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-11 0:42 [PATCH 00/18] ARC mm updates to support 3 or 4 levels of paging Vineet Gupta
2021-08-11 0:42 ` [PATCH 01/18] ARC: mm: simplify mmu scratch register assingment to mmu needs Vineet Gupta
2021-08-11 0:42 ` [PATCH 02/18] ARC: mm: remove tlb paranoid code Vineet Gupta
2021-08-11 0:42 ` [PATCH 03/18] ARC: mm: move mmu/cache externs out to setup.h Vineet Gupta
2021-08-11 5:10 ` Mike Rapoport
2021-08-11 18:46 ` Vineet Gupta
2021-08-11 0:42 ` [PATCH 04/18] ARC: mm: remove pgd_offset_fast Vineet Gupta
2021-08-11 5:12 ` Mike Rapoport
2021-08-11 18:54 ` Vineet Gupta
2021-08-11 0:42 ` [PATCH 05/18] ARC: mm: Fixes to allow STRICT_MM_TYPECHECKS Vineet Gupta
2021-08-11 0:42 ` [PATCH 06/18] ARC: mm: Enable STRICT_MM_TYPECHECKS Vineet Gupta
2021-08-11 12:04 ` Mike Rapoport
2021-08-11 19:01 ` Vineet Gupta
2021-08-11 0:42 ` [PATCH 07/18] ARC: ioremap: use more commonly used PAGE_KERNEL based uncached flag Vineet Gupta
2021-08-11 5:18 ` Mike Rapoport
2021-08-11 18:58 ` Vineet Gupta [this message]
2021-08-11 0:42 ` [PATCH 08/18] ARC: mm: pmd_populate* to use the canonical set_pmd (and drop pmd_set) Vineet Gupta
2021-08-11 0:42 ` [PATCH 09/18] ARC: mm: non-functional code cleanup ahead of 3 levels Vineet Gupta
2021-08-11 12:31 ` Mike Rapoport
2021-08-12 1:37 ` Vineet Gupta
2021-08-12 6:18 ` Mike Rapoport
2021-08-12 18:58 ` Vineet Gupta
2021-08-11 0:42 ` [PATCH 10/18] ARC: mm: move MMU specific bits out of ASID allocator Vineet Gupta
2021-08-11 0:42 ` [PATCH 11/18] ARC: mm: move MMU specific bits out of entry code Vineet Gupta
2021-08-11 12:15 ` Mike Rapoport
2021-08-11 19:30 ` Vineet Gupta
2021-08-11 0:42 ` [PATCH 12/18] ARC: mm: disintegrate mmu.h (arcv2 bits out) Vineet Gupta
2021-08-11 0:42 ` [PATCH 13/18] ARC: mm: disintegrate pgtable.h into levels and flags Vineet Gupta
2021-08-11 0:42 ` [PATCH 14/18] ARC: mm: hack to allow 2 level build with 4 level code Vineet Gupta
2021-08-11 0:42 ` [PATCH 15/18] ARC: mm: support 3 levels of page tables Vineet Gupta
2021-08-11 12:24 ` Mike Rapoport
2021-08-11 22:15 ` Vineet Gupta
2021-08-11 0:42 ` [PATCH 16/18] ARC: mm: support 4 " Vineet Gupta
2021-08-11 12:28 ` Mike Rapoport
2021-08-11 22:17 ` Vineet Gupta
2021-08-11 0:42 ` [PATCH 17/18] ARC: mm: vmalloc sync from kernel to user table to update PMD Vineet Gupta
2021-08-11 0:42 ` [PATCH 18/18] ARC: mm: introduce _PAGE_TABLE to explicitly link pgd,pud,pmd entries Vineet Gupta
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