From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C9DE77461 for ; Sun, 17 Sep 2023 20:17:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F460C433C8; Sun, 17 Sep 2023 20:17:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694981865; bh=/2MQFXMdzYNErKNPs6ZlfY7IqlB4H5JrBwSeBL/t0Ro=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iRtI9eqn44egz6/CCSCk+wtjmxdoEqiOENdPQZOk0xm/67U5ElUgOOumjfzVXIREg lGi6bfxkDoYlaiOWs9yH0r+nEzpv7gNa6pk15IvgY5cYa4MQdhGI7qlwfBCvDACWRV tXoEDC0KSN3MW3pUYJf5FrtFFIl4cIfO9TXC2e0o= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dillon Varone , Hamza Mahfooz , Wenjing Liu , Alex Deucher Subject: [PATCH 6.1 182/219] drm/amd/display: always switch off ODM before committing more streams Date: Sun, 17 Sep 2023 21:15:09 +0200 Message-ID: <20230917191047.529403133@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230917191040.964416434@linuxfoundation.org> References: <20230917191040.964416434@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Wenjing Liu commit 49a30c3d1a2258fc93cfe6eea8e4951dabadc824 upstream. ODM power optimization is only supported with single stream. When ODM power optimization is enabled, we might not have enough free pipes for enabling other stream. So when we are committing more than 1 stream we should first switch off ODM power optimization to make room for new stream and then allocating pipe resource for the new stream. Cc: stable@vger.kernel.org Fixes: 59de751e3845 ("drm/amd/display: add ODM case when looking for first split pipe") Reviewed-by: Dillon Varone Acked-by: Hamza Mahfooz Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/core/dc.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1977,12 +1977,12 @@ enum dc_status dc_commit_streams(struct } } - /* Check for case where we are going from odm 2:1 to max - * pipe scenario. For these cases, we will call - * commit_minimal_transition_state() to exit out of odm 2:1 - * first before processing new streams + /* ODM Combine 2:1 power optimization is only applied for single stream + * scenario, it uses extra pipes than needed to reduce power consumption + * We need to switch off this feature to make room for new streams. */ - if (stream_count == dc->res_pool->pipe_count) { + if (stream_count > dc->current_state->stream_count && + dc->current_state->stream_count == 1) { for (i = 0; i < dc->res_pool->pipe_count; i++) { pipe = &dc->current_state->res_ctx.pipe_ctx[i]; if (pipe->next_odm_pipe)