From mboxrd@z Thu Jan 1 00:00:00 1970 From: Catalin Marinas Subject: Re: [PATCH] mm: generalize ZONE_[DMA|DMA32] Date: Thu, 27 May 2021 18:43:21 +0100 Message-ID: <20210527174321.GI8661@arm.com> References: <20210527143047.123611-1-wangkefeng.wang@huawei.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <20210527143047.123611-1-wangkefeng.wang@huawei.com> List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Kefeng Wang Cc: Andrew Morton , linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org, Will Deacon , Geert Uytterhoeven , Thomas Bogendoerfer , "David S. Miller" , Ingo Molnar , Borislav Petkov , Palmer Dabbelt , Richard Henderson , Russell King On Thu, May 27, 2021 at 10:30:47PM +0800, Kefeng Wang wrote: > ZONE_[DMA|DMA32] configs have duplicate definitions on platforms > that subscribe them. Instead, just make them generic options which > can be selected on applicable platforms. > > Also only x86/arm64 architectures could enable both ZONE_DMA and > ZONE_DMA32 if EXPERT, add ARCH_HAS_ZONE_DMA_SET to make dma zone > configurable and visible on the two architectures. > > Cc: Andrew Morton > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Geert Uytterhoeven > Cc: Thomas Bogendoerfer > Cc: "David S. Miller" > Cc: Ingo Molnar > Cc: Borislav Petkov > Cc: Palmer Dabbelt > Cc: Richard Henderson > Cc: Russell King > Signed-off-by: Kefeng Wang For arm64: Acked-by: Catalin Marinas