From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF41FC433E0 for ; Mon, 8 Jun 2020 04:41:51 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 705652081A for ; Mon, 8 Jun 2020 04:41:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="gVuOBxD7" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 705652081A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 196AA6B00A6; Mon, 8 Jun 2020 00:41:51 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 16E9D6B00A8; Mon, 8 Jun 2020 00:41:51 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 085566B00A9; Mon, 8 Jun 2020 00:41:51 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0196.hostedemail.com [216.40.44.196]) by kanga.kvack.org (Postfix) with ESMTP id DF02C6B00A6 for ; Mon, 8 Jun 2020 00:41:50 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id B47CB804C46B for ; Mon, 8 Jun 2020 04:41:50 +0000 (UTC) X-FDA: 76904796780.24.pet48_4e113c026db7 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin24.hostedemail.com (Postfix) with ESMTP id 843F23FA76 for ; Mon, 8 Jun 2020 04:41:50 +0000 (UTC) X-HE-Tag: pet48_4e113c026db7 X-Filterd-Recvd-Size: 3986 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf19.hostedemail.com (Postfix) with ESMTP for ; Mon, 8 Jun 2020 04:41:50 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2287220760; Mon, 8 Jun 2020 04:41:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591591309; bh=JmLJNEZLJcwRHZb0QMLaZXkKKncGNurTVXxkQs2ofQo=; h=Date:From:To:Subject:In-Reply-To:From; b=gVuOBxD7e3eMAVq2+O3iuk7ncTffTbk3e6uXMnMLGfkJTyp6A+pSAGbGiuOlEh7+0 M40Ylhr5BQEm1Se+KEK1kXwXiRB9rQaa5JrvMn7L9Csg3FBLVLeKXYKuZOVrfMu3rE 0Skq7hSoKQOXavtA5WsQJhj0U+WUxWN7jB2Rsfm4= Date: Sun, 07 Jun 2020 21:41:48 -0700 From: Andrew Morton To: akpm@linux-foundation.org, hch@lst.de, ink@jurassic.park.msu.ru, linux-mm@kvack.org, mattst88@gmail.com, mm-commits@vger.kernel.org, rth@twiddle.net, torvalds@linux-foundation.org Subject: [patch 32/54] alpha: use asm-generic/cacheflush.h Message-ID: <20200608044148.rVvzzs9HG%akpm@linux-foundation.org> In-Reply-To: <20200607212615.b050e41fac139a1e16fe00bd@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Rspamd-Queue-Id: 843F23FA76 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 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: From: Christoph Hellwig Subject: alpha: use asm-generic/cacheflush.h Alpha needs almost no cache flushing routines of its own. Rely on asm-generic/cacheflush.h for the defaults. Link: http://lkml.kernel.org/r/20200515143646.3857579-9-hch@lst.de Signed-off-by: Christoph Hellwig Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Signed-off-by: Andrew Morton --- arch/alpha/include/asm/cacheflush.h | 28 +++++--------------------- 1 file changed, 6 insertions(+), 22 deletions(-) --- a/arch/alpha/include/asm/cacheflush.h~alpha-use-asm-generic-cacheflushh +++ a/arch/alpha/include/asm/cacheflush.h @@ -4,19 +4,6 @@ #include -/* Caches aren't brain-dead on the Alpha. */ -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 -#define flush_dcache_page(page) do { } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - /* Note that the following two definitions are _highly_ dependent on the contexts in which they are used in the kernel. I personally think it is criminal how loosely defined these macros are. */ @@ -59,20 +46,17 @@ flush_icache_user_range(struct vm_area_s mm->context[smp_processor_id()] = 0; } } -#else +#define flush_icache_user_range flush_icache_user_range +#else /* CONFIG_SMP */ extern void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len); -#endif +#define flush_icache_user_range flush_icache_user_range +#endif /* CONFIG_SMP */ /* This is used only in __do_fault and do_swap_page. */ #define flush_icache_page(vma, page) \ - flush_icache_user_range((vma), (page), 0, 0) + flush_icache_user_range((vma), (page), 0, 0) -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { memcpy(dst, src, len); \ - flush_icache_user_range(vma, page, vaddr, len); \ -} while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +#include #endif /* _ALPHA_CACHEFLUSH_H */ _