From nobody Wed Oct 8 09:28:28 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 BDC9C29346E for ; Mon, 30 Jun 2025 20:25:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751315125; cv=none; b=r/0TerINQTF3xqhpiVBxKmy3h32lCdWcLEFMsa5z1n/VX5FkOrVwJhWYtyng/yMAExZMOzqIt066/XbpnQqyqabudkWwDYKffzlhA9tm2eQOCI7QlESutXNzMB9cfHP7AlB4qQqHZcm/Ur70v1mjrD4bAUHNagJ0J8zLkmm55EM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751315125; c=relaxed/simple; bh=xB7QGHyQ7LZDLROkroqvK8J5I8By/18BP/QbTfmkBwE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GRWUOyERUKjtZpugrp/sLbn+7dEf9eev95Lx0mGOk2XZgfBqOsP3kZoiPfQK4PvEdPJ+iBvsXnSkFVwqLwcT6ZjBAYnBx/IU7dFbcwK7lDbIW+vEoKRvsU9dY6QhRN5A1/w+tzRTKF7u4gFfuBRgkiXHL0JgoupA7C7+8FwUBko= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=RdE17BTv; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="RdE17BTv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1751315120; bh=xB7QGHyQ7LZDLROkroqvK8J5I8By/18BP/QbTfmkBwE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RdE17BTveF/EH1pRCAkCFmWNbq+Om+oioofuplBuFZbQg625FyeHKX515K328Qoxe Ubb4wiKHAxS6up70lCmIOLKgQcNI8VEYYBLJhhQJdozlsml8jEOVDGmnszVAJC3ZSs gotcuWnVuJXedT4uaj+heglfxZNm5zLkai4IljI2AGJYeC69NbScBDcpCzMFhVdJJ8 ONmjeOif1thwoLxQYMc+oMAf3B73BuQiWsjph+PPIZumtHVG3RsYKuJIH02yRwzlh/ hFsGUCnuJ92B+WitxQq65qg3IGoj3oECQkBsBIOU15N1Frns/6yzkEumaehF6sQi+Y 5I45q3mcJv6RQ== Received: from localhost.localdomain (unknown [92.206.120.105]) (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: gerddie) by bali.collaboradmins.com (Postfix) with ESMTPSA id 148F017E0F3F; Mon, 30 Jun 2025 22:25:20 +0200 (CEST) From: Gert Wollny To: Lucas Stach , Russell King , Christian Gmeiner , David Airlie , Daniel Vetter Cc: etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Gert Wollny Subject: [PATCH v3 5/5] drm/etnaviv: Add module parameter to force PPU flop reset Date: Mon, 30 Jun 2025 22:26:31 +0200 Message-ID: <20250630202703.13844-6-gert.wollny@collabora.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250630202703.13844-1-gert.wollny@collabora.com> References: <20250618204400.21808-1-gert.wollny@collabora.com> <20250630202703.13844-1-gert.wollny@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" v2: Check for feature PIPE_3D when forcing PPU flop reset (Lucas) Signed-off-by: Gert Wollny --- drivers/gpu/drm/etnaviv/etnaviv_flop_reset.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_flop_reset.c b/drivers/gpu/drm= /etnaviv/etnaviv_flop_reset.c index 138af3c33b5d..ec32128ebac5 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_flop_reset.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_flop_reset.c @@ -16,6 +16,9 @@ enum etnaviv_flop_reset_type { flop_reset_tp =3D 1 << 2 }; =20 +static int etnaviv_force_flop_reset =3D 0; +module_param_named(force_flop_reset, etnaviv_force_flop_reset, int , 0); + #define PPU_IMAGE_STRIDE 64 #define PPU_IMAGE_XSIZE 64 #define PPU_IMAGE_YSIZE 6 @@ -151,6 +154,20 @@ etnaviv_flop_reset_ppu_require(const struct etnaviv_ch= ip_identity *chip_id) return (e->flags & flop_reset_ppu) !=3D 0; } =20 + if (etnaviv_force_flop_reset & flop_reset_ppu) { + + if (!(chip_id->features & chipFeatures_PIPE_3D)) { + pr_warn("Feature PIPE_3D not supported, ignore request to force " + "PPU flop reset for model: 0x%04x, revision: 0x%04x\n", + chip_id->model, chip_id->revision); + return false; + } + + pr_info("Force PPU flop reset for model: 0x%04x, revision: 0x%04x\n", + chip_id->model, chip_id->revision); + return true; + } + return false; } =20 --=20 2.49.0