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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB763C433FE for ; Mon, 10 Oct 2022 00:14:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231712AbiJJAOI (ORCPT ); Sun, 9 Oct 2022 20:14:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231281AbiJJAMt (ORCPT ); Sun, 9 Oct 2022 20:12:49 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19C6E43148; Sun, 9 Oct 2022 16:50:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A93EB60D3F; Sun, 9 Oct 2022 23:50:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5AB97C433C1; Sun, 9 Oct 2022 23:50:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665359423; bh=D57F51nhXs+6rwTKvULIB5lh9K58TqPulJrZALO2lFY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RTELeqsV4IpYnlBcoO4JHI1C2vkJW2lb10mUBZyR5Ctfx2YVO6fQxQUK2WWdxSpIJ RASE4b47f0WQOhDZ3YH4hMb2FvoRP/khcct51GaIxj+CJtfeRxTnVqVMBzE74jsiFe xZPg6zudvg5rIr5NkjE/tnD36ODVUYbY3BZaHZYvDrX+31WZaUQeAZPKuqpJ4StVt4 8zJn83THEtp/r1dxAZJprfYfKsI1T5KgGLyMzNfgvjgTdNR613CH1kWBCu44Ii51Wt ptLmoPn9po+A/Mj8W/DQksH+sNSVwHGEkdveXTLiGIOoKTHtJqk662H7+zrn7I8OGa tWKlPlbAgJArg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Yifan Zha , =?UTF-8?q?Christian=20K=C3=B6nig?= , Horace Chen , Hawking Zhang , Alex Deucher , Sasha Levin , Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, Likun.Gao@amd.com, tianci.yin@amd.com, Jack.Gui@amd.com, ray.huang@amd.com, evan.quan@amd.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 6.0 14/44] drm/amdgpu: Skip the program of MMMC_VM_AGP_* in SRIOV on MMHUB v3_0_0 Date: Sun, 9 Oct 2022 19:49:02 -0400 Message-Id: <20221009234932.1230196-14-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221009234932.1230196-1-sashal@kernel.org> References: <20221009234932.1230196-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yifan Zha [ Upstream commit c1026c6f319724dc88fc08d9d9d35bcbdf492b42 ] [Why] VF should not program these registers, the value were defined in the host. [How] Skip writing them in SRIOV environment and program them on host side. Acked-by: Christian König Signed-off-by: Yifan Zha Signed-off-by: Horace Chen Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c index bc11b2de37ae..a1d26c4d80b8 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0.c @@ -169,17 +169,17 @@ static void mmhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev) uint64_t value; uint32_t tmp; - /* Disable AGP. */ - WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0); - WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0); - WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF); - if (!amdgpu_sriov_vf(adev)) { /* * the new L1 policy will block SRIOV guest from writing * these regs, and they will be programed at host. * so skip programing these regs. */ + /* Disable AGP. */ + WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0); + WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, 0); + WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, 0x00FFFFFF); + /* Program the system aperture low logical page number. */ WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR, adev->gmc.vram_start >> 18); -- 2.35.1