From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753891AbbIKVBZ (ORCPT ); Fri, 11 Sep 2015 17:01:25 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:34511 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751696AbbIKVBX (ORCPT ); Fri, 11 Sep 2015 17:01:23 -0400 From: Andy Gross To: linux-arm-msm@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Mark Brown , Stephen Boyd , Andy Gross Subject: [Patch v2] firmware: qcom: scm: Add function stubs for ARM64 Date: Fri, 11 Sep 2015 16:01:16 -0500 Message-Id: <1442005276-31971-1-git-send-email-agross@codeaurora.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds stubs for the SCM functions exposed in the QCOM SCM API. Signed-off-by: Andy Gross --- drivers/firmware/Kconfig | 8 +++++ drivers/firmware/Makefile | 3 +- drivers/firmware/qcom_scm-64.c | 63 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 73 insertions(+), 1 deletion(-) create mode 100644 drivers/firmware/qcom_scm-64.c diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 99c69a3..72720eb 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -136,6 +136,14 @@ config QCOM_SCM bool depends on ARM || ARM64 +config QCOM_SCM_32 + def_bool y + depends on QCOM_SCM && ARM + +config QCOM_SCM_64 + def_bool y + depends on QCOM_SCM && ARM64 + source "drivers/firmware/broadcom/Kconfig" source "drivers/firmware/google/Kconfig" source "drivers/firmware/efi/Kconfig" diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile index 4a4b897..73f841c 100644 --- a/drivers/firmware/Makefile +++ b/drivers/firmware/Makefile @@ -12,7 +12,8 @@ obj-$(CONFIG_ISCSI_IBFT_FIND) += iscsi_ibft_find.o obj-$(CONFIG_ISCSI_IBFT) += iscsi_ibft.o obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o obj-$(CONFIG_QCOM_SCM) += qcom_scm.o -obj-$(CONFIG_QCOM_SCM) += qcom_scm-32.o +obj-$(CONFIG_QCOM_SCM_64) += qcom_scm-64.o +obj-$(CONFIG_QCOM_SCM_32) += qcom_scm-32.o CFLAGS_qcom_scm-32.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1) obj-y += broadcom/ diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c new file mode 100644 index 0000000..bb6555f --- /dev/null +++ b/drivers/firmware/qcom_scm-64.c @@ -0,0 +1,63 @@ +/* Copyright (c) 2015, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include + +/** + * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus + * @entry: Entry point function for the cpus + * @cpus: The cpumask of cpus that will use the entry point + * + * Set the cold boot address of the cpus. Any cpu outside the supported + * range would be removed from the cpu present mask. + */ +int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) +{ + return -ENOTSUPP; +} + +/** + * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus + * @entry: Entry point function for the cpus + * @cpus: The cpumask of cpus that will use the entry point + * + * Set the Linux entry point for the SCM to transfer control to when coming + * out of a power down. CPU power down may be executed on cpuidle or hotplug. + */ +int __qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus) +{ + return -ENOTSUPP; +} + +/** + * qcom_scm_cpu_power_down() - Power down the cpu + * @flags - Flags to flush cache + * + * This is an end point to power down cpu. If there was a pending interrupt, + * the control would return from this function, otherwise, the cpu jumps to the + * warm boot entry point set for this cpu upon reset. + */ +void __qcom_scm_cpu_power_down(u32 flags) +{ +} + +int __qcom_scm_is_call_available(u32 svc_id, u32 cmd_id) +{ + return -ENOTSUPP; +} + +int __qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp) +{ + return -ENOTSUPP; +} -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation