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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628642600; bh=iW4KvuWuC+r5z39MFQzwrbwCs0tKRK5GIGFWIb/ZRJY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=agy6Rj11nk6gxe06wBgAua7nlZQ5Lkktx0Qtu9NWGx3Dyz1Ac9gkJfbTindxD4NJb iVuNiEnXjhwfd7iOzQIh42HKk7mj/QSv3lYGVA83QIM1zjK1KTZxKWtt10tPW8abL7 QcB4UC8QATKQ2XIOcbTGGiuba4r5F5wyMGhNuM/bB8ehF6Vtz/70Wo23Np+qvS821W yQ6zTuTQG9h/rkXk+7Sz40K8+hK+FLYpZQUV0uT3Q0bAsr/J+jl9nh2986SA5G41YZ 6T/OzK/iD2vARp9YolUHaRcVfZMjd0I0ruDHt4s+h6VfCNZrKi/1NbRU1OgopWpU3G UDwuuvxls+8Lw== From: Vineet Gupta To: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Anshuman Khandual , Mike Rapoport , Vineet Gupta Subject: [PATCH 09/18] ARC: mm: non-functional code cleanup ahead of 3 levels Date: Tue, 10 Aug 2021 17:42:49 -0700 Message-Id: <20210811004258.138075-10-vgupta@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210811004258.138075-1-vgupta@kernel.org> References: <20210811004258.138075-1-vgupta@kernel.org> MIME-Version: 1.0 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 2997DB006B60 Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=agy6Rj11; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf24.hostedemail.com: domain of vgupta@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=vgupta@kernel.org X-Stat-Signature: n4exrt19nwykfiwz14d3nnb8t65o8fiq X-HE-Tag: 1628642601-296272 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Signed-off-by: Vineet Gupta --- arch/arc/include/asm/page.h | 30 ++++++++++++++++-------------- arch/arc/include/asm/pgalloc.h | 7 ++++++- 2 files changed, 22 insertions(+), 15 deletions(-) diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h index c4ac827379cd..313e6f543d2d 100644 --- a/arch/arc/include/asm/page.h +++ b/arch/arc/include/asm/page.h @@ -34,6 +34,13 @@ void copy_user_highpage(struct page *to, struct page *= from, unsigned long u_vaddr, struct vm_area_struct *vma); void clear_user_page(void *to, unsigned long u_vaddr, struct page *page)= ; =20 +typedef struct { + unsigned long pgd; +} pgd_t; + +#define pgd_val(x) ((x).pgd) +#define __pgd(x) ((pgd_t) { (x) }) + typedef struct { #ifdef CONFIG_ARC_HAS_PAE40 unsigned long long pte; @@ -41,22 +48,17 @@ typedef struct { unsigned long pte; #endif } pte_t; -typedef struct { - unsigned long pgd; -} pgd_t; + +#define pte_val(x) ((x).pte) +#define __pte(x) ((pte_t) { (x) }) + typedef struct { unsigned long pgprot; } pgprot_t; =20 -#define pte_val(x) ((x).pte) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) }) -#define __pgd(x) ((pgd_t) { (x) }) -#define __pgprot(x) ((pgprot_t) { (x) }) - -#define pte_pgprot(x) __pgprot(pte_val(x)) +#define pgprot_val(x) ((x).pgprot) +#define __pgprot(x) ((pgprot_t) { (x) }) +#define pte_pgprot(x) __pgprot(pte_val(x)) =20 typedef pte_t * pgtable_t; =20 @@ -96,8 +98,8 @@ extern int pfn_valid(unsigned long pfn); * virt here means link-address/program-address as embedded in object co= de. * And for ARC, link-addr =3D physical address */ -#define __pa(vaddr) ((unsigned long)(vaddr)) -#define __va(paddr) ((void *)((unsigned long)(paddr))) +#define __pa(vaddr) ((unsigned long)(vaddr)) +#define __va(paddr) ((void *)((unsigned long)(paddr))) =20 #define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr)) #define virt_addr_valid(kaddr) pfn_valid(virt_to_pfn(kaddr)) diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgallo= c.h index 356237b9c537..0cf73431eb89 100644 --- a/arch/arc/include/asm/pgalloc.h +++ b/arch/arc/include/asm/pgalloc.h @@ -29,6 +29,11 @@ #ifndef _ASM_ARC_PGALLOC_H #define _ASM_ARC_PGALLOC_H =20 +/* + * For ARC, pgtable_t is not struct page *, but pte_t * (to avoid + * extraneous page_address() calculations) hence can't use + * use asm-generic/pgalloc.h which assumes it being struct page * + */ #include #include =20 @@ -36,7 +41,7 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep) { /* - * The cast to long below is OK even when pte is long long (PAE40) + * The cast to long below is OK in 32-bit PAE40 regime with long long p= te * Despite "wider" pte, the pte table needs to be in non-PAE low memory * as all higher levels can only hold long pointers. * --=20 2.25.1