From patchwork Tue Feb 21 15:37:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 655499 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 2FCD6C636D7 for ; Tue, 21 Feb 2023 15:38:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234716AbjBUPiF (ORCPT ); Tue, 21 Feb 2023 10:38:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59328 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234186AbjBUPh5 (ORCPT ); Tue, 21 Feb 2023 10:37:57 -0500 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 170E623103; Tue, 21 Feb 2023 07:37:53 -0800 (PST) Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 29E9266021CF; Tue, 21 Feb 2023 15:37:51 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1676993871; bh=HedQD3Ilc5pEnx8vhQO81s7TTNK+oqpJPvaglDZ6DvY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mzSAB68huZi2FWdjCmbPQLcRx/D12xji2dNq7yFIsN0pLXxptw/dMPR76n0abG8lz xcx+ldXx+RYzOJ0Z/EyrgyjHYxS4dTBHPe2puZUkPf/pqMKV8sRY1BqdI0UsmEnFg0 yzMHNEuaeXf5jQBw+Psxdkt5mOTiW3OzmMMjwCSCoDv9X+G8ZnMwlqAH994GT/GuCR dmmBdZCS+Sv+N6O0da+H4/DQgL+2F7TAHQL6yqMcObaqIG7Z2q5RBfSXyZSsn9DdWZ LVGdO2sQLN7DPcdiZnyMxP6vAvdeKXavJeqC495UgF84b0OOVHDvdQ88rKmu6hSnYm 9OL2oeVX36WjA== From: AngeloGioacchino Del Regno To: airlied@gmail.com Cc: daniel@ffwll.ch, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, steven.price@arm.com, alyssa.rosenzweig@collabora.com, matthias.bgg@gmail.com, robh@kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, wenst@chromium.org, AngeloGioacchino Del Regno Subject: [PATCH v2 08/10] drm/panfrost: Add the MT8192 GPU ID Date: Tue, 21 Feb 2023 16:37:38 +0100 Message-Id: <20230221153740.1620529-9-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230221153740.1620529-1-angelogioacchino.delregno@collabora.com> References: <20230221153740.1620529-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Alyssa Rosenzweig MediaTek MT8192 has a Mali-G57 with a special GPU ID. Add its GPU ID, but treat it as otherwise identical to a standard Mali-G57. We do _not_ fix up the GPU ID here -- userspace needs to be aware of the special GPU ID, in case we find functional differences between MediaTek's implementation and the standard Mali-G57 down the line. Signed-off-by: Alyssa Rosenzweig Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Steven Price --- drivers/gpu/drm/panfrost/panfrost_gpu.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c index 6452e4e900dd..d28b99732dde 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c @@ -204,6 +204,14 @@ static const struct panfrost_model gpu_models[] = { GPU_MODEL(g57, 0x9001, GPU_REV(g57, 0, 0)), + + /* MediaTek MT8192 has a Mali-G57 with a different GPU ID from the + * standard. Arm's driver does not appear to handle this model. + * ChromeOS has a hack downstream for it. Treat it as equivalent to + * standard Mali-G57 for now. + */ + GPU_MODEL(g57, 0x9003, + GPU_REV(g57, 0, 0)), }; static void panfrost_gpu_init_features(struct panfrost_device *pfdev)