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Fri, 12 Jun 2020 03:18:45 -0700 (PDT) Date: Fri, 12 Jun 2020 15:48:44 +0530 From: afzal mohammed To: Russell King - ARM Linux admin , Arnd Bergmann , Linus Walleij Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, Nicolas Pitre , Catalin Marinas , Will Deacon Subject: [RFC 3/3] ARM: provide CONFIG_VMSPLIT_4G_DEV for development Message-ID: <333fdfb5080726988b1223a5fbe8ebcc4d6ec3e0.1591885760.git.afzal.mohd.ma@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.3 (2018-01-21) X-Rspamd-Queue-Id: 085B918038E67 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 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: Select UACCESS_GUP_KMAP_MEMCPY initially. Signed-off-by: afzal mohammed --- arch/arm/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c77c93c485a08..ae2687679d7c8 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1326,6 +1326,15 @@ config PAGE_OFFSET default 0xB0000000 if VMSPLIT_3G_OPT default 0xC0000000 +config VMSPLIT_4G_DEV + bool "Experimental changes for 4G/4G user/kernel split" + depends on ARM_LPAE + select UACCESS_GUP_KMAP_MEMCPY + help + Experimental changes during 4G/4G user/kernel split development. + Existing vmsplit config option is used, once development is done, + this would be put as a new choice & _DEV suffix removed. + config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 -- 2.26.2