From patchwork Thu Oct 3 14:00:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Peter Maydell X-Patchwork-Id: 1992351 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=paSZkejc; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4XKCzF3pY4z1xtk for ; Fri, 4 Oct 2024 00:02:01 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1swMOC-0004Lf-EN; Thu, 03 Oct 2024 10:01:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1swMNQ-000471-NU for qemu-devel@nongnu.org; Thu, 03 Oct 2024 10:00:25 -0400 Received: from mail-wr1-x42e.google.com ([2a00:1450:4864:20::42e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1swMNO-0002rV-Af for qemu-devel@nongnu.org; Thu, 03 Oct 2024 10:00:20 -0400 Received: by mail-wr1-x42e.google.com with SMTP id ffacd0b85a97d-37ccd81de57so617229f8f.0 for ; Thu, 03 Oct 2024 07:00:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1727964016; x=1728568816; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=LPD0ziR8yfL/HjZu6b/yEmmqErN3Sv3BQp33o6QEumo=; b=paSZkejcLJehhIKtxeAm7c6dbsEA+0qHftsZSbuKCTOOt2h23ReqjdvnTr459qqFas TJ6RFkql2+9bZs3+AwImySZZr4kuZsGUwxzVR/ikY5yQTCpHeWhbyT4dpu4+FFt06Gfx 8GYfOy4/eeL1b48CCoJbucAl/E1aDZOQPB+7eQsF8qUbnjOCbkv/oUPGcljLXUwQ0mmo 0Lh+S1A2ZKwGgVJMDVz8BQuki+EYEdUa3kaLzsdySnBhoIckdR7do1RKoh8MYcb2lszJ ZKUrXRfb/JhFB/Fy8XJ64qxVrQhVaUb76T20iiTqGOAdi9Bs46yFJTmmQW3NptT1RIkX qcyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727964016; x=1728568816; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=LPD0ziR8yfL/HjZu6b/yEmmqErN3Sv3BQp33o6QEumo=; b=cjkHQ7Jx6flfQLZON+hbs52XsIM3sKXaunGjnhVt+0GvAftLeLUcC3eYxdNe6vOwD+ IpJUImSrabxkJYoFtUiaTLLzvyttyR8MbdsU7CVoPRSqDRLsBLTbdfWqd6OeQOWxi8+r w4ethW1ClEL0yG624enIPJDujiax8xI8PmXG5Ds9Kdlu85D/OZcdMbZ4mkE3dqJ75p8H kcLC1YgWGLwFRIi1ka/kkuWqCdfYrkDYNXFistfmDmTG9nD/hdUjdFgSR3dOsLOLo7U7 ZBNQHrc+bYa0lUHxXU33okhuN543NfEl1BOh9nEGFeoxTeMqzWQdquf0DP1aeJUaDEVW P/VQ== X-Forwarded-Encrypted: i=1; AJvYcCVKO71mNCBpQ6qo8AM3s3odT4B0M/YtXVSoa/v/NgY8+W4kP7mwnE52v2mY+YDW1v7Zdsh4pa9JwZzZ@nongnu.org X-Gm-Message-State: AOJu0Yx9n0Mb9/lcBk80LGRdKIhFuZ7BA908flw2eFBAsiTM+/H63CN/ B2GJ4QxkbqVxbJIw93Vhc3KKQyJB/r5FHs86xi1mXtkHeY7Vboila6g7ydRjRck= X-Google-Smtp-Source: AGHT+IH5Z0RKAGC5X2uA0/Qz4r3miR4YAsUlg8Gozod07a36v2WxqNiXC10l952fNrLtXzgkADKkLw== X-Received: by 2002:adf:a30d:0:b0:37c:f561:1130 with SMTP id ffacd0b85a97d-37d04a04aa2mr2286429f8f.18.1727964016185; Thu, 03 Oct 2024 07:00:16 -0700 (PDT) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-37d0822bc38sm1340255f8f.45.2024.10.03.07.00.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Oct 2024 07:00:15 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Guenter Roeck , Paolo Bonzini Subject: [PATCH v2 5/6] hw/block: Remove ecc Date: Thu, 3 Oct 2024 15:00:09 +0100 Message-Id: <20241003140010.1653808-6-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241003140010.1653808-1-peter.maydell@linaro.org> References: <20241003140010.1653808-1-peter.maydell@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42e; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org The ecc.c code was used only by the PXA2xx and OMAP2 SoC devices, which we have removed, so it is now completely unused. Note that hw/misc/eccmemctl.c does not in fact use any of the code frome ecc.c, so that KConfig dependency was incorrect. Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé --- include/hw/block/flash.h | 11 ----- hw/block/ecc.c | 91 ---------------------------------------- hw/arm/Kconfig | 1 - hw/block/Kconfig | 3 -- hw/block/meson.build | 1 - hw/misc/Kconfig | 1 - 6 files changed, 108 deletions(-) delete mode 100644 hw/block/ecc.c diff --git a/include/hw/block/flash.h b/include/hw/block/flash.h index b985c825a01..5fd67f5bb79 100644 --- a/include/hw/block/flash.h +++ b/include/hw/block/flash.h @@ -62,17 +62,6 @@ uint32_t nand_getbuswidth(DeviceState *dev); #define NAND_MFR_HYNIX 0xad #define NAND_MFR_MICRON 0x2c -/* ecc.c */ -typedef struct { - uint8_t cp; /* Column parity */ - uint16_t lp[2]; /* Line parity */ - uint16_t count; -} ECCState; - -uint8_t ecc_digest(ECCState *s, uint8_t sample); -void ecc_reset(ECCState *s); -extern const VMStateDescription vmstate_ecc_state; - /* m25p80.c */ #define TYPE_M25P80 "m25p80-generic" diff --git a/hw/block/ecc.c b/hw/block/ecc.c deleted file mode 100644 index ed889a4184f..00000000000 --- a/hw/block/ecc.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Calculate Error-correcting Codes. Used by NAND Flash controllers - * (not by NAND chips). - * - * Copyright (c) 2006 Openedhand Ltd. - * Written by Andrzej Zaborowski - * - * This code is licensed under the GNU GPL v2. - * - * Contributions after 2012-01-13 are licensed under the terms of the - * GNU GPL, version 2 or (at your option) any later version. - */ - -#include "qemu/osdep.h" -#include "migration/vmstate.h" -#include "hw/block/flash.h" - -/* - * Pre-calculated 256-way 1 byte column parity. Table borrowed from Linux. - */ -static const uint8_t nand_ecc_precalc_table[] = { - 0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a, - 0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00, - 0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f, - 0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65, - 0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c, - 0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66, - 0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59, - 0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03, - 0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33, - 0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69, - 0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56, - 0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c, - 0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55, - 0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f, - 0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30, - 0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a, - 0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30, - 0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a, - 0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55, - 0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f, - 0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56, - 0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c, - 0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33, - 0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69, - 0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59, - 0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03, - 0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c, - 0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66, - 0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f, - 0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65, - 0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a, - 0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00, -}; - -/* Update ECC parity count. */ -uint8_t ecc_digest(ECCState *s, uint8_t sample) -{ - uint8_t idx = nand_ecc_precalc_table[sample]; - - s->cp ^= idx & 0x3f; - if (idx & 0x40) { - s->lp[0] ^= ~s->count; - s->lp[1] ^= s->count; - } - s->count ++; - - return sample; -} - -/* Reinitialise the counters. */ -void ecc_reset(ECCState *s) -{ - s->lp[0] = 0x0000; - s->lp[1] = 0x0000; - s->cp = 0x00; - s->count = 0; -} - -/* Save/restore */ -const VMStateDescription vmstate_ecc_state = { - .name = "ecc-state", - .version_id = 0, - .minimum_version_id = 0, - .fields = (const VMStateField[]) { - VMSTATE_UINT8(cp, ECCState), - VMSTATE_UINT16_ARRAY(lp, ECCState, 2), - VMSTATE_UINT16(count, ECCState), - VMSTATE_END_OF_LIST(), - }, -}; diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index a70ceff504b..7b19a9559f6 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -146,7 +146,6 @@ config OMAP bool select FRAMEBUFFER select I2C - select ECC select NAND select PFLASH_CFI01 select SD diff --git a/hw/block/Kconfig b/hw/block/Kconfig index e67a6fd8af7..a898e04f03b 100644 --- a/hw/block/Kconfig +++ b/hw/block/Kconfig @@ -22,9 +22,6 @@ config PFLASH_CFI01 config PFLASH_CFI02 bool -config ECC - bool - config VIRTIO_BLK bool default y diff --git a/hw/block/meson.build b/hw/block/meson.build index 999a93d900f..16a51bf8e21 100644 --- a/hw/block/meson.build +++ b/hw/block/meson.build @@ -3,7 +3,6 @@ system_ss.add(files( 'cdrom.c', 'hd-geometry.c' )) -system_ss.add(when: 'CONFIG_ECC', if_true: files('ecc.c')) system_ss.add(when: 'CONFIG_FDC', if_true: files('fdc.c')) system_ss.add(when: 'CONFIG_FDC_ISA', if_true: files('fdc-isa.c')) system_ss.add(when: 'CONFIG_FDC_SYSBUS', if_true: files('fdc-sysbus.c')) diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig index 1e08785b832..8568aaa2293 100644 --- a/hw/misc/Kconfig +++ b/hw/misc/Kconfig @@ -74,7 +74,6 @@ config IVSHMEM_DEVICE config ECCMEMCTL bool - select ECC config IMX bool