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 X-Spam-Level: X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CDFA5C47094 for ; Mon, 7 Jun 2021 16:20:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B493561447 for ; Mon, 7 Jun 2021 16:20:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233290AbhFGQWW (ORCPT ); Mon, 7 Jun 2021 12:22:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:49986 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232558AbhFGQTc (ORCPT ); Mon, 7 Jun 2021 12:19:32 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1C9B76161F; Mon, 7 Jun 2021 16:14:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1623082480; bh=f80SMjVXuFIG2vJ6MBNISobFfAFhDGaZoem9OetOAbY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W69zjaYceNwq//dRUVFIePtkjk6zsPxK1JUUauaOb4ajtbMJGFpvrOrhJL9rtYZHU h6RpP2FuPBVA5NAmSBYAvyCDYrDKHxBqVY0FyIDmzOfI8lXMSjdDgIL2zkbMMjKuSe gcpSk25cr+IcCKC0JeQKqLSkxipuyxa1QFzjrszZNuY8hhe/trMcYpqnxvfhJ3NbO4 fDe5I6s3pXy0Bz4VCWu+hMe/3Rebn5heiO+HTTYcTSDj41JP6ABMYO1gq/GeD2izcW KQQbt/9BFZ8z3BfU5nHlsiYxnvfV1MCDFaa+arTkIFGAIWJXZMnoLB9rmLuRivSMwf TJum/DdLLbxMA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bindu Ramamurthy , Roman Li , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.4 24/29] drm/amd/display: Allow bandwidth validation for 0 streams. Date: Mon, 7 Jun 2021 12:14:05 -0400 Message-Id: <20210607161410.3584036-24-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210607161410.3584036-1-sashal@kernel.org> References: <20210607161410.3584036-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Bindu Ramamurthy [ Upstream commit ba8e59773ae59818695d1e20b8939282da80ec8c ] [Why] Bandwidth calculations are triggered for non zero streams, and in case of 0 streams, these calculations were skipped with pstate status not being updated. [How] As the pstate status is applicable for non zero streams, check added for allowing 0 streams inline with dcn internal bandwidth validations. Signed-off-by: Bindu Ramamurthy Reviewed-by: Roman Li Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 08062de3fbeb..2b1175bb2dae 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -2917,7 +2917,7 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context, voltage_supported = dcn20_validate_bandwidth_internal(dc, context, false); dummy_pstate_supported = context->bw_ctx.bw.dcn.clk.p_state_change_support; - if (voltage_supported && dummy_pstate_supported) { + if (voltage_supported && (dummy_pstate_supported || !(context->stream_count))) { context->bw_ctx.bw.dcn.clk.p_state_change_support = false; goto restore_dml_state; } -- 2.30.2