From mboxrd@z Thu Jan 1 00:00:00 1970 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 9991EE668B4 for ; Sat, 20 Dec 2025 16:34:10 +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=QPJeNboYmKqQxDsi1yTmupvhwG1o3rD6N2Pei4Rl1iM=; b=TD/Hh5zDHQhMe1 HCu7zZaGBC2jgwAGiLJDP2Jsj9oIbaXnYzAq6Bn9nc+rTwzLG4tvnHbr9EXHHcvKJpGXhMOTeooWx 1Z1rEQ8sHz+dchuGHscgNOiV35LKAiuCPSA/1VbCO5f//rIgMBFSkx3G5I9I74U8hR4ZinukAHhr6 0SHhJAgAHE2q9WERSTH4/MQPvyA1VIgWy1P4g1dg9XcViY9X8vy34IDmem34KiztGrA1vzdE16Z/u aqkAFaP6KX+Nt+XxEzEBU1XWniojfNwb0akQq6fapcjT9V1v0i2TeNDjNp9NsVachpGZsPBi8oHqT JBmZqNzN9whEDSjgUsOA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vWzu3-0000000BkeJ-00B1; Sat, 20 Dec 2025 16:33:59 +0000 Received: from smtp84.cstnet.cn ([159.226.251.84] helo=cstnet.cn) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vWztz-0000000BkdJ-0ipT for linux-riscv@lists.infradead.org; Sat, 20 Dec 2025 16:33:57 +0000 Received: from localhost.localdomain (unknown [223.166.92.103]) by APP-05 (Coremail) with SMTP id zQCowACnPRHnz0ZpnwlTAQ--.53309S2; Sun, 21 Dec 2025 00:33:46 +0800 (CST) From: Han Gao To: Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , David Airlie , Simona Vetter , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: Han Gao , linux-riscv@lists.infradead.org, sophgo@lists.linux.dev, Han Gao Subject: [PATCH] drm/radeon: bypass no_64bit_msi with new msi64 parameter Date: Sun, 21 Dec 2025 00:33:38 +0800 Message-ID: <20251220163338.3852399-1-gaohan@iscas.ac.cn> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 X-CM-TRANSID: zQCowACnPRHnz0ZpnwlTAQ--.53309S2 X-Coremail-Antispam: 1UD129KBjvJXoW7try8AF4fCrW5JF15Ar4kXrb_yoW8uw4UpF 45WF9Iqr9xtasIg3y7XFW7XF15Aa18Way8Wr4DG3sxuw45AryUGFy3Z3W3JrykXrn7Xry2 qrn7G3yrur4FyrJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUU9014x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26r1I6r4UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4j 6F4UM28EF7xvwVC2z280aVAFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv6xkF7I0E14v26r4j6r 4UJwAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0 I7IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628v n2kIc2xKxwCY1x0262kKe7AKxVWUtVW8ZwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7x kEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E 67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCw CI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1x MIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIda VFxhVjvjDU0xZFpf9x0JUd-B_UUUUU= X-Originating-IP: [223.166.92.103] X-CM-SenderInfo: xjdrxt3q6l2u1dvotugofq/1tbiDAUCDGlGuzwaKwAAse X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251220_083355_565885_95B7F278 X-CRM114-Status: GOOD ( 10.71 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Sophgo SG2042's MSI driver lacks 32-bit MSI support. Added a msi64 parameter to skip the limitation and force 64-bit MSI. Signed-off-by: Han Gao --- drivers/gpu/drm/radeon/radeon.h | 1 + drivers/gpu/drm/radeon/radeon_drv.c | 4 ++++ drivers/gpu/drm/radeon/radeon_irq_kms.c | 2 +- 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 527b9d19d730..7207e3156c28 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -122,6 +122,7 @@ extern int radeon_uvd; extern int radeon_vce; extern int radeon_si_support; extern int radeon_cik_support; +extern int radeon_msi64; /* * Copy from radeon_drv.h so we don't have to include both and have conflicting diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 87fd6255c114..53af28494c03 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -249,6 +249,10 @@ int radeon_cik_support = -1; MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled, 0 = disabled, -1 = default)"); module_param_named(cik_support, radeon_cik_support, int, 0444); +int radeon_msi64; +MODULE_PARM_DESC(msi64, "MSI64 support (1 = enabled, 0 = disabled)"); +module_param_named(msi64, radeon_msi64, int, 0444); + static const struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 9961251b44ba..62eb5a6968ff 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -250,7 +250,7 @@ static bool radeon_msi_ok(struct radeon_device *rdev) * of address for "64-bit" MSIs which breaks on some platforms, notably * IBM POWER servers, so we limit them */ - if (rdev->family < CHIP_BONAIRE) { + if (rdev->family < CHIP_BONAIRE && !radeon_msi64) { dev_info(rdev->dev, "radeon: MSI limited to 32-bit\n"); rdev->pdev->no_64bit_msi = 1; } -- 2.47.3 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv