From nobody Mon May 6 20:17:07 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1630507806661546.6453642524195; Wed, 1 Sep 2021 07:50:06 -0700 (PDT) Received: from localhost ([::1]:37226 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mLRYz-0000Th-I4 for importer@patchew.org; Wed, 01 Sep 2021 10:50:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44360) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <2014500726@smail.xtu.edu.cn>) id 1mLNgm-000868-BT for qemu-devel@nongnu.org; Wed, 01 Sep 2021 06:41:52 -0400 Received: from smtpbgeu1.qq.com ([52.59.177.22]:44900) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <2014500726@smail.xtu.edu.cn>) id 1mLNgf-0000to-Tp for qemu-devel@nongnu.org; Wed, 01 Sep 2021 06:41:51 -0400 Received: from localhost.localdomain (unknown [114.91.2.95]) by esmtp6.qq.com (ESMTP) with id ; Wed, 01 Sep 2021 18:41:31 +0800 (CST) X-QQ-mid: bizesmtp50t1630492892tewf9ssh X-QQ-SSF: 0140000000700070R000B00A0000000 X-QQ-FEAT: Q1yiNCT1ez4fbPXBeC6Bm3VQ2PP3bbKDosNG1uYhLFxyMZ/nTsMXs4fpEGtAZ uvxMwWW3pO6sMCAOUwGV087M4b3x93+/oQwZaovu5FphFhD1OwetBo0WYwT1jvxx89aZ839 v5VHm4mhyySW5+dCsOqiGZV7z5EiAawtN15QubM9iAMTm5F6r2BG5dDLTWTFMEbPGolrPp/ n2sJk9R+L46K+h4qDiw7V3f3vrXC/sDJm5vPrlJzGcXkX+bGEDvwiZRFO2EinQe8CUKArnc UmyxyZ1kc5PMKZQnr/HExNSb7pV/WyBzPL3oG8yTpjYSy1srBHvnB9u9j5ucBmg1GX2w== X-QQ-GoodBg: 2 From: xiaoming <2014500726@smail.xtu.edu.cn> To: Gabriel Somlo Subject: [PATCH] [PATCH] drivers/firmware/qemu_fw_cfg: add RISCV support Date: Wed, 1 Sep 2021 18:41:30 +0800 Message-Id: <20210901104130.10185-1-2014500726@smail.xtu.edu.cn> X-Mailer: git-send-email 2.17.1 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:smail.xtu.edu.cn:qybgforeign:qybgforeign1 X-QQ-Bgrelay: 1 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=52.59.177.22; envelope-from=2014500726@smail.xtu.edu.cn; helo=smtpbgeu1.qq.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 01 Sep 2021 10:43:12 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, xiaoming <2014500726@smail.xtu.edu.cn>, qemu-devel@nongnu.org, "Michael S . Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1630507808562100001 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" In the latest release of qemu (qemu 6.0.0 or higher) riscv virt already sup= ports fw_cfg, but drivers/firmware/qemu_fw_cfg not support. Signed-off-by: xiaoming <2014500726@smail.xtu.edu.cn> --- drivers/firmware/Kconfig | 2 +- drivers/firmware/qemu_fw_cfg.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 1db738d5b..4eb8d8a3a 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -186,7 +186,7 @@ config RASPBERRYPI_FIRMWARE =20 config FW_CFG_SYSFS tristate "QEMU fw_cfg device support in sysfs" - depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86) + depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86 |= | RISCV) depends on HAS_IOPORT_MAP default n help diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c index 172c751a4..36b5b2612 100644 --- a/drivers/firmware/qemu_fw_cfg.c +++ b/drivers/firmware/qemu_fw_cfg.c @@ -225,6 +225,10 @@ static void fw_cfg_io_cleanup(void) # define FW_CFG_CTRL_OFF 0x00 # define FW_CFG_DATA_OFF 0x01 # define FW_CFG_DMA_OFF 0x04 +# elif defined(CONFIG_RISCV) +# define FW_CFG_CTRL_OFF 0x08 +# define FW_CFG_DATA_OFF 0x00 +# define FW_CFG_DMA_OFF 0x10 # else # error "QEMU FW_CFG not available on this architecture!" # endif --=20 2.17.1