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Thu, 15 Nov 2018 15:12:13 +0000 (GMT) Received: from epcas2p4.samsung.com ( [182.195.41.56]) by epsmges2p2.samsung.com (Symantec Messaging Gateway) with SMTP id FB.0C.04407.CCC8DEB5; Fri, 16 Nov 2018 00:12:12 +0900 (KST) Received: from epsmgms2p2new.samsung.com (unknown [182.195.42.143]) by epcas2p4.samsung.com (KnoxPortal) with ESMTP id 20181115151211epcas2p4fdc719d354f2a732f70667ccbd8f1bae~nVOMN5m880889608896epcas2p4f; Thu, 15 Nov 2018 15:12:11 +0000 (GMT) X-AuditID: b6c32a46-7a1ff70000001137-23-5bed8ccc8a07 Received: from epmmp2 ( [203.254.227.17]) by epsmgms2p2new.samsung.com (Symantec Messaging Gateway) with SMTP id 91.28.03702.BCC8DEB5; Fri, 16 Nov 2018 00:12:11 +0900 (KST) Received: from AMDC3058.DIGITAL.local ([106.120.53.102]) by mmp2.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0PI8006WJQ7YQ380@mmp2.samsung.com>; Fri, 16 Nov 2018 00:12:11 +0900 (KST) From: Bartlomiej Zolnierkiewicz To: Krzysztof Kozlowski Cc: Arnd Bergmann , Marek Szyprowski , Kukjin Kim , Markus Reichl , Andrzej Hajda , Chanwoo Choi , Javier Martinez Canillas , Pankaj Dubey , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, b.zolnierkie@samsung.com Subject: [PATCH 1/9] ARM: EXYNOS: remove secondary startup initialization from smp_prepare_cpus Date: Thu, 15 Nov 2018 16:11:30 +0100 Message-id: <1542294698-17470-2-git-send-email-b.zolnierkie@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1542294698-17470-1-git-send-email-b.zolnierkie@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWRb0gTcRjH++1uu3M5u6bULw1fDIKUNBsGZ5n0QuSCoojepJQd7pjSpms3 TQ1USNKWZBmZlIWV9mc5p3PmsjLclkuzmbk0V+vfwGFlEo6UiZnnzXef5/t8H55/OCJ1odF4 Xr6O0ebTKplIjD62x5EJQzXTWUk+awrpaXMJycW6fozsaDAJyfGAX0jerr8PyFrfT4QcHm7H SLNvTEiO9jSKyIbhXgE55ZgHpNHhxcg7XQFsr4RaCNYByvOpnDIbzouozuZyaqb3vYi6aDEA atYcewjLFKcqGFVeEaPdnnZCnBuo7MM0HknxV+OSqALcWKsHYTgkkuGM6Z5QD8S4lLAC+NGj B3wwB6BJHxSsuiaCoyjHUqIdwLPGct4UBNDcM4JxCRGxC16uMgCOo4g4OL44J+QYIV4isNkN OY4kaNjzu29Zx3GU2AJdr3WcLCEo6Fy6jvK9YuFA/5WV0jBiH+x+U4VwvSDhEEHfnDFkSocP 9B8QniPhD6cF4zkGTho6AF9wDcBfwRaUD0wAtg71h9bZDe3OkdB0EbDavohxE0FCAqvPSXkL BSe9f0J3aQRw1G9DL4FNTWCNAWxgNKxaybByjTyRpdVsYb4yMadAbQYrX47PsIJm134bIHAg C5cknZ7OkgrpIrZEbQMQR2RRkoyyZUmioEtKGW1BtrZQxbA2EIOjso2SbzE3s6SEktYxJxlG w2hXswI8LLoCWJ6+bQ1XRNSmbK6XX231vxpoUVcNPgRJ9vlnO7+/P/IE5vxLPbC+2bGtt7jY m54AGPnnhqOyY1sr+46fmkq+1SUsS6Vn2nR/ZxO+CEC86kyt0u1WPE+vfxcVqLF6LU0LY3vU 67qz7xqdgwcvOHyH08SPXJ2CiY7EF7JMt58tlaFsLr0jHtGy9H/Vfrai4QIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrELMWRmVeSWpSXmKPExsVy+t9jQd3TPW+jDeZ/l7e4te4cq8XfScfY LTbOWM9qcf3Lc1aLhdOWM1r0P37NbHH+/AZ2i02Pr7FaXN41h81ixvl9TBYvj/xgtFh75C67 xaKtX9gdeD1+/5rE6HHrTr3HplWdbB6bl9R7vN93lc2jb8sqRo/Pm+QC2KO4bFJSczLLUov0 7RK4Mr60HGQvuMVb8WDtf7YGxtncXYycHBICJhI3f11m6WLk4hASWMco8f54KzOE84tRouf3 RxaQKjYBK4mJ7asYQWwRAU2J63+/s4IUMQscZZb4PGE7M0hCWCBRYuXGD0ANHBwsAqoS506X gIR5BTwkjv+fxQKxTU7i5LHJrCA2p4CnxPaz7WCtQkA1n/+eYZ/AyLOAkWEVo2RqQXFuem6x UYFRXmq5XnFibnFpXrpecn7uJkZgSG47rNW/g/HxkvhDjAIcjEo8vAblb6OFWBPLiitzDzFK cDArifC61QGFeFMSK6tSi/Lji0pzUosPMUpzsCiJ8/LnH4sUEkhPLEnNTk0tSC2CyTJxcEo1 MNbH8X7pbmbcvHHB25zpqqyX0p61JH4pYbp5cf5MJs2GDYyrpcIvPGq/71EmJvjqVuCKvx80 D0Xu/xd2JfR3UwmLgrO1u2OPR/Oc+TNcW2c7brpXobH2/v9V2vX+/CsEjtQrNEoY86fwBdx5 feGe5CuZWY18XBdehen/2r/ZW1Xy1DJOWS7uQCWW4oxEQy3mouJEALTMJKRFAgAA X-CMS-MailID: 20181115151211epcas2p4fdc719d354f2a732f70667ccbd8f1bae X-Msg-Generator: CA CMS-TYPE: 102P X-CMS-RootMailID: 20181115151211epcas2p4fdc719d354f2a732f70667ccbd8f1bae References: <1542294698-17470-1-git-send-email-b.zolnierkie@samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Pankaj Dubey We are taking care of setting secondary cpu boot address in exynos_boot_secondary just before sending ipi to secondary CPUs, so we can safely remove this setting from smp_prepare_cpus. Signed-off-by: Pankaj Dubey Reviewed-by: Krzysztof Kozlowski Signed-off-by: Bartlomiej Zolnierkiewicz --- arch/arm/mach-exynos/platsmp.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 6a1e682..c39ffd2 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -397,38 +397,12 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) { - int i; - exynos_sysram_init(); exynos_set_delayed_reset_assertion(true); if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) exynos_scu_enable(); - - /* - * Write the address of secondary startup into the - * system-wide flags register. The boot monitor waits - * until it receives a soft interrupt, and then the - * secondary CPU branches to this address. - * - * Try using firmware operation first and fall back to - * boot register if it fails. - */ - for (i = 1; i < max_cpus; ++i) { - unsigned long boot_addr; - u32 mpidr; - u32 core_id; - int ret; - - mpidr = cpu_logical_map(i); - core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0); - boot_addr = __pa_symbol(exynos4_secondary_startup); - - ret = exynos_set_boot_addr(core_id, boot_addr); - if (ret) - break; - } } #ifdef CONFIG_HOTPLUG_CPU -- 1.9.1