From patchwork Wed Oct 26 14:50:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Davis X-Patchwork-Id: 13020733 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D0E15C433FE for ; Wed, 26 Oct 2022 14:52:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=45s099brdzDHV2o1Ky9/ynhBvCk3qFsIEDOsxrOg1cI=; b=3PNGnsonvD6s+1 4ys9wUfYt0BsV2ZVk9+Y35aOJ4QIkSf0ZuoLlAv5UY9WIE0ceMhgkVod/IlPMPwUI5GTfObDKWMEq gN+777ua/PN1RYxrFUz3IsPdy5Eu2LuKfcJf7/xiam7svvkiG+NXWhP/W7ngFAJt+QPa/4s4u2iin YuUY+I4xus95IwVj7DsLO3R/tb3kGXV41tGpOIKA6/yqTUa6U4g2TCl8pWFOcLZ+1eaVfVRMr0gy3 gCxUDmpuACIIu+4MInx4EcC4M+aHJtLMGigUkAb4Yzwup/qc4ppRmYagwtlPTssCS7ZmvIhJsmmYI L9WcJ0+rfwaPFDGjbevg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1onhk2-009jq2-Vt; Wed, 26 Oct 2022 14:50:51 +0000 Received: from lelv0143.ext.ti.com ([198.47.23.248]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1onhjz-009jnF-Vi for linux-arm-kernel@lists.infradead.org; Wed, 26 Oct 2022 14:50:49 +0000 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 29QEoY1T053290; Wed, 26 Oct 2022 09:50:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1666795834; bh=jC1EMGa0JWhHm+CV8M8zKATmvjdhkFzR+YWheju/89A=; h=From:To:CC:Subject:Date; b=YsWn9Q3ctzKKTtzhR+BBMthI8oY3FTN0ATXSYiyPkH7WxOz70fDqj75SFqXj98ebU YXTN0ldFnfidFVRdC7Y0NSS1js5/iVBP5BkCtXHExQGCY0oGhRzmlyOWuJv17R0OsA /J7G+uPrHc6MhVbSkW34JqBZ449DU+HqoEKx+n6I= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 29QEoYlt064032 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 26 Oct 2022 09:50:34 -0500 Received: from DLEE102.ent.ti.com (157.170.170.32) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.6; Wed, 26 Oct 2022 09:50:34 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE102.ent.ti.com (157.170.170.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.6 via Frontend Transport; Wed, 26 Oct 2022 09:50:34 -0500 Received: from ula0226330.dal.design.ti.com (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 29QEoXvR123570; Wed, 26 Oct 2022 09:50:33 -0500 From: Andrew Davis To: Nishanth Menon , Vignesh Raghavendra , Santosh Shilimkar , Russell King , , CC: Andrew Davis Subject: [PATCH v2] ARM: keystone: Replace platform SMP with PSCI Date: Wed, 26 Oct 2022 09:50:33 -0500 Message-ID: <20221026145033.17905-1-afd@ti.com> X-Mailer: git-send-email 2.37.3 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221026_075048_221244_0CD718BB X-CRM114-Status: GOOD ( 16.22 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The KS2 boot monitor supports PSCI commands. These are already defined in DT for KS2. We can drop this platform override and remove related code without changing SMP. Do this here. Signed-off-by: Andrew Davis --- Changes from v1: - Rebased on latest RC arch/arm/mach-keystone/Makefile | 4 +-- arch/arm/mach-keystone/keystone.c | 2 -- arch/arm/mach-keystone/keystone.h | 5 ---- arch/arm/mach-keystone/platsmp.c | 41 ------------------------------- arch/arm/mach-keystone/smc.S | 26 -------------------- 5 files changed, 1 insertion(+), 77 deletions(-) delete mode 100644 arch/arm/mach-keystone/platsmp.c delete mode 100644 arch/arm/mach-keystone/smc.S diff --git a/arch/arm/mach-keystone/Makefile b/arch/arm/mach-keystone/Makefile index 739b38be5696..0c1d54aec60f 100644 --- a/arch/arm/mach-keystone/Makefile +++ b/arch/arm/mach-keystone/Makefile @@ -1,7 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -obj-y := keystone.o smc.o - -obj-$(CONFIG_SMP) += platsmp.o +obj-y := keystone.o # PM domain driver for Keystone SOCs obj-$(CONFIG_ARCH_KEYSTONE) += pm_domain.o diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c index 2c647bdf8d25..aa352c2de313 100644 --- a/arch/arm/mach-keystone/keystone.c +++ b/arch/arm/mach-keystone/keystone.c @@ -18,7 +18,6 @@ #include #include #include -#include #include #include "memory.h" @@ -103,7 +102,6 @@ DT_MACHINE_START(KEYSTONE, "Keystone") #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) .dma_zone_size = SZ_2G, #endif - .smp = smp_ops(keystone_smp_ops), .init_machine = keystone_init, .dt_compat = keystone_match, .pv_fixup = keystone_pv_fixup, diff --git a/arch/arm/mach-keystone/keystone.h b/arch/arm/mach-keystone/keystone.h index 438e531cc007..71ff8cd2ee4a 100644 --- a/arch/arm/mach-keystone/keystone.h +++ b/arch/arm/mach-keystone/keystone.h @@ -8,13 +8,8 @@ #ifndef __KEYSTONE_H__ #define __KEYSTONE_H__ -#define KEYSTONE_MON_CPU_UP_IDX 0x00 - #ifndef __ASSEMBLER__ -extern const struct smp_operations keystone_smp_ops; -extern void secondary_startup(void); -extern u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr); extern int keystone_pm_runtime_init(void); #endif /* __ASSEMBLER__ */ diff --git a/arch/arm/mach-keystone/platsmp.c b/arch/arm/mach-keystone/platsmp.c deleted file mode 100644 index 673fcf3b34b1..000000000000 --- a/arch/arm/mach-keystone/platsmp.c +++ /dev/null @@ -1,41 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Keystone SOC SMP platform code - * - * Copyright 2013 Texas Instruments, Inc. - * Cyril Chemparathy - * Santosh Shilimkar - * - * Based on platsmp.c, Copyright (C) 2002 ARM Ltd. - */ - -#include -#include -#include -#include - -#include -#include -#include - -#include "keystone.h" - -static int keystone_smp_boot_secondary(unsigned int cpu, - struct task_struct *idle) -{ - unsigned long start = virt_to_idmap(&secondary_startup); - int error; - - pr_debug("keystone-smp: booting cpu %d, vector %08lx\n", - cpu, start); - - error = keystone_cpu_smc(KEYSTONE_MON_CPU_UP_IDX, cpu, start); - if (error) - pr_err("CPU %d bringup failed with %d\n", cpu, error); - - return error; -} - -const struct smp_operations keystone_smp_ops __initconst = { - .smp_boot_secondary = keystone_smp_boot_secondary, -}; diff --git a/arch/arm/mach-keystone/smc.S b/arch/arm/mach-keystone/smc.S deleted file mode 100644 index 21ef75cf5370..000000000000 --- a/arch/arm/mach-keystone/smc.S +++ /dev/null @@ -1,26 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Keystone Secure APIs - * - * Copyright (C) 2013 Texas Instruments, Inc. - * Santosh Shilimkar - */ - -#include - -/** - * u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr) - * - * Low level CPU monitor API - * @command: Monitor command. - * @cpu: CPU Number - * @addr: Kernel jump address for boot CPU - * - * Return: Non zero value on failure - */ - .arch_extension sec -ENTRY(keystone_cpu_smc) - stmfd sp!, {r4-r11, lr} - smc #0 - ldmfd sp!, {r4-r11, pc} -ENDPROC(keystone_cpu_smc)