From patchwork Tue Dec 5 08:47:16 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 10092485 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5653A6035E for ; Tue, 5 Dec 2017 08:48:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 43200294F2 for ; Tue, 5 Dec 2017 08:48:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 367AD29536; Tue, 5 Dec 2017 08:48:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6C039294F2 for ; Tue, 5 Dec 2017 08:48:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=Xadpi3Y1317PIWi3UuXumPVlUgpJybMygvVTK6NuDM8=; b=Ocl0Dzhdze9epOmhNCLT9xK+Xe nCJlutm+xSJJcjysFj7P19dPbrExC6FRvRXa83RnLAZMusUt2vz9TkXES1+NK5bYC3gZU+nPjzbff odeW4+dVFb5l0shsQuW9IYk2ko05g0CiywPSLS4azxyl2bEXkyzkyNMjQHEdMt7yR4Kt04Wt6Rtxq qc9u4oczZpe71diKyFV/RJeum9VvbAASuAedgkIE2f2CR4kh0TBVFBKX5gpPZdAEzDGI7+jD4EJY2 /VnQMun/98hGs8YWsvX/4vPryFm0hVtuRRBm5tsYEe4a8YhRpT5Ez2aH5NaFap0pIzwsO3Xm8pgSm Y6UVt5vQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1eM8uD-0004XB-IJ; Tue, 05 Dec 2017 08:48:45 +0000 Received: from conuserg-08.nifty.com ([210.131.2.75]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1eM8tr-00044S-1A; Tue, 05 Dec 2017 08:48:31 +0000 Received: from pug.e01.socionext.com (p14092-ipngnfx01kyoto.kyoto.ocn.ne.jp [153.142.97.92]) (authenticated) by conuserg-08.nifty.com with ESMTP id vB58lQkJ015545; Tue, 5 Dec 2017 17:47:28 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-08.nifty.com vB58lQkJ015545 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1512463649; bh=5Beu90NITXAoOdNvnvXJW+8fIWuFjW4MDzh/33tqDyg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T5fM9wlZx5D6NlTiLcunQLD0WLkBbkEzFBvYNoD9LFHYTm8Qtot7WOTAbwXgZpbOk LgQ36nNKmaRBlYseUUa+uHHWLdntNTcjHEZduwfEo1pXLvHy/Grn4i39noLzAWHB+3 JSAoRrLMlASRR8X0GNLIxpjBfxEu0+Cqji/muvMEZk8UGTwaUugPvKSOrMupQlQtx7 pO/iCDDfEEZRfYIrHgmANmcSQmnV8y8T9x2MkScfiNHNtV4DakSLaOLC/7NFBP1UQc hp8FnpV0QM+qPbUsx14W8F20yzml4OnLvc1O3ll08sP0V239EvX/fYO53cIzzpg6PL X85vgApJFL5cg== X-Nifty-SrcIP: [153.142.97.92] From: Masahiro Yamada To: linux-mtd@lists.infradead.org, Boris Brezillon Subject: [PATCH v2 3/3] mtd: nand: squash struct nand_buffers into struct nand_chip Date: Tue, 5 Dec 2017 17:47:16 +0900 Message-Id: <1512463636-28934-3-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1512463636-28934-1-git-send-email-yamada.masahiro@socionext.com> References: <1512463636-28934-1-git-send-email-yamada.masahiro@socionext.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20171205_004824_144554_B09BA530 X-CRM114-Status: GOOD ( 19.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , Richard Weinberger , Kamal Dasu , linux-kernel@vger.kernel.org, Masahiro Yamada , Chen-Yu Tsai , bcm-kernel-feedback-list@broadcom.com, Cyrille Pitchen , Han Xu , Maxime Ripard , Brian Norris , David Woodhouse , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP struct nand_buffers is malloc'ed in nand_scan_tail() just for containing three pointers. Squash this struct into nand_chip. Move and rename as follows: chip->buffers->ecccalc -> chip->ecc.calc_buf chip->buffers->ecccode -> chip->ecc.code_buf chip->buffers->databuf -> chip->data_buf Signed-off-by: Masahiro Yamada --- Changes in v2: - Rename as Boris suggested - Based on cafe_nand rework drivers/mtd/nand/brcmnand/brcmnand.c | 2 +- drivers/mtd/nand/denali.c | 2 +- drivers/mtd/nand/fsmc_nand.c | 4 +- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 4 +- drivers/mtd/nand/nand_base.c | 91 ++++++++++++++-------------------- drivers/mtd/nand/nand_bbt.c | 2 +- drivers/mtd/nand/omap2.c | 10 ++-- drivers/mtd/nand/sunxi_nand.c | 6 +-- include/linux/mtd/rawnand.h | 23 +++------ 9 files changed, 59 insertions(+), 85 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index e0eb51d..cc13c88 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1681,7 +1681,7 @@ static int brcmstb_nand_verify_erased_page(struct mtd_info *mtd, int ret; if (!buf) { - buf = chip->buffers->databuf; + buf = chip->data_buf; /* Invalidate page cache */ chip->pagebuf = -1; } diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 2fc964b..3e61ac4 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -328,7 +328,7 @@ static int denali_check_erased_page(struct mtd_info *mtd, unsigned long uncor_ecc_flags, unsigned int max_bitflips) { - uint8_t *ecc_code = chip->buffers->ecccode; + uint8_t *ecc_code = chip->ecc.code_buf; int ecc_steps = chip->ecc.steps; int ecc_size = chip->ecc.size; int ecc_bytes = chip->ecc.bytes; diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index eac15d9..574b043 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -684,8 +684,8 @@ static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; uint8_t *p = buf; - uint8_t *ecc_calc = chip->buffers->ecccalc; - uint8_t *ecc_code = chip->buffers->ecccode; + uint8_t *ecc_calc = chip->ecc.calc_buf; + uint8_t *ecc_code = chip->ecc.code_buf; int off, len, group = 0; /* * ecc_oob is intentionally taken as uint16_t. In 16bit devices, we diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 50f8d4a..a760ae7 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1712,7 +1712,7 @@ static int mx23_check_transcription_stamp(struct gpmi_nand_data *this) unsigned int search_area_size_in_strides; unsigned int stride; unsigned int page; - uint8_t *buffer = chip->buffers->databuf; + uint8_t *buffer = chip->data_buf; int saved_chip_number; int found_an_ncb_fingerprint = false; @@ -1771,7 +1771,7 @@ static int mx23_write_transcription_stamp(struct gpmi_nand_data *this) unsigned int block; unsigned int stride; unsigned int page; - uint8_t *buffer = chip->buffers->databuf; + uint8_t *buffer = chip->data_buf; int saved_chip_number; int status; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 0cc61b1..fe583e4 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1456,8 +1456,8 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; uint8_t *p = buf; - uint8_t *ecc_calc = chip->buffers->ecccalc; - uint8_t *ecc_code = chip->buffers->ecccode; + uint8_t *ecc_calc = chip->ecc.calc_buf; + uint8_t *ecc_code = chip->ecc.code_buf; unsigned int max_bitflips = 0; chip->ecc.read_page_raw(mtd, chip, buf, 1, page); @@ -1529,7 +1529,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, /* Calculate ECC */ for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size) - chip->ecc.calculate(mtd, p, &chip->buffers->ecccalc[i]); + chip->ecc.calculate(mtd, p, &chip->ecc.calc_buf[i]); /* * The performance is faster if we position offsets according to @@ -1563,7 +1563,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, chip->read_buf(mtd, &chip->oob_poi[aligned_pos], aligned_len); } - ret = mtd_ooblayout_get_eccbytes(mtd, chip->buffers->ecccode, + ret = mtd_ooblayout_get_eccbytes(mtd, chip->ecc.code_buf, chip->oob_poi, index, eccfrag_len); if (ret) return ret; @@ -1572,13 +1572,13 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size) { int stat; - stat = chip->ecc.correct(mtd, p, - &chip->buffers->ecccode[i], &chip->buffers->ecccalc[i]); + stat = chip->ecc.correct(mtd, p, &chip->ecc.code_buf[i], + &chip->ecc.calc_buf[i]); if (stat == -EBADMSG && (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) { /* check for empty pages with bitflips */ stat = nand_check_erased_ecc_chunk(p, chip->ecc.size, - &chip->buffers->ecccode[i], + &chip->ecc.code_buf[i], chip->ecc.bytes, NULL, 0, chip->ecc.strength); @@ -1611,8 +1611,8 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; uint8_t *p = buf; - uint8_t *ecc_calc = chip->buffers->ecccalc; - uint8_t *ecc_code = chip->buffers->ecccode; + uint8_t *ecc_calc = chip->ecc.calc_buf; + uint8_t *ecc_code = chip->ecc.code_buf; unsigned int max_bitflips = 0; for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) { @@ -1674,8 +1674,8 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd, int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; uint8_t *p = buf; - uint8_t *ecc_code = chip->buffers->ecccode; - uint8_t *ecc_calc = chip->buffers->ecccalc; + uint8_t *ecc_code = chip->ecc.code_buf; + uint8_t *ecc_calc = chip->ecc.calc_buf; unsigned int max_bitflips = 0; /* Read the OOB area first */ @@ -1894,7 +1894,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, /* Is the current page in the buffer? */ if (realpage != chip->pagebuf || oob) { - bufpoi = use_bufpoi ? chip->buffers->databuf : buf; + bufpoi = use_bufpoi ? chip->data_buf : buf; if (use_bufpoi && aligned) pr_debug("%s: using read bounce buffer for buf@%p\n", @@ -1938,7 +1938,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, /* Invalidate page cache */ chip->pagebuf = -1; } - memcpy(buf, chip->buffers->databuf + col, bytes); + memcpy(buf, chip->data_buf + col, bytes); } if (unlikely(oob)) { @@ -1979,7 +1979,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, buf += bytes; max_bitflips = max_t(unsigned int, max_bitflips, ret); } else { - memcpy(buf, chip->buffers->databuf + col, bytes); + memcpy(buf, chip->data_buf + col, bytes); buf += bytes; max_bitflips = max_t(unsigned int, max_bitflips, chip->pagebuf_bitflips); @@ -2403,7 +2403,7 @@ static int nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, int i, eccsize = chip->ecc.size, ret; int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; - uint8_t *ecc_calc = chip->buffers->ecccalc; + uint8_t *ecc_calc = chip->ecc.calc_buf; const uint8_t *p = buf; /* Software ECC calculation */ @@ -2433,7 +2433,7 @@ static int nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, int i, eccsize = chip->ecc.size, ret; int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; - uint8_t *ecc_calc = chip->buffers->ecccalc; + uint8_t *ecc_calc = chip->ecc.calc_buf; const uint8_t *p = buf; for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) { @@ -2469,7 +2469,7 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd, int oob_required, int page) { uint8_t *oob_buf = chip->oob_poi; - uint8_t *ecc_calc = chip->buffers->ecccalc; + uint8_t *ecc_calc = chip->ecc.calc_buf; int ecc_size = chip->ecc.size; int ecc_bytes = chip->ecc.bytes; int ecc_steps = chip->ecc.steps; @@ -2503,7 +2503,7 @@ static int nand_write_subpage_hwecc(struct mtd_info *mtd, /* copy calculated ECC for whole page to chip->buffer->oob */ /* this include masked-value(0xFF) for unwritten subpages */ - ecc_calc = chip->buffers->ecccalc; + ecc_calc = chip->ecc.calc_buf; ret = mtd_ooblayout_set_eccbytes(mtd, ecc_calc, chip->oob_poi, 0, chip->ecc.total); if (ret) @@ -2737,9 +2737,9 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, if (part_pagewr) bytes = min_t(int, bytes - column, writelen); chip->pagebuf = -1; - memset(chip->buffers->databuf, 0xff, mtd->writesize); - memcpy(&chip->buffers->databuf[column], buf, bytes); - wbuf = chip->buffers->databuf; + memset(chip->data_buf, 0xff, mtd->writesize); + memcpy(&chip->data_buf[column], buf, bytes); + wbuf = chip->data_buf; } if (unlikely(oob)) { @@ -4632,7 +4632,6 @@ int nand_scan_tail(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &chip->ecc; - struct nand_buffers *nbuf = NULL; int ret, i; /* New bad blocks should be marked in OOB, flash-based BBT, or both */ @@ -4646,30 +4645,22 @@ int nand_scan_tail(struct mtd_info *mtd) return -EINVAL; } - nbuf = kzalloc(sizeof(*nbuf), GFP_KERNEL); - if (!nbuf) + ecc->calc_buf = kmalloc(mtd->oobsize, GFP_KERNEL); + if (!ecc->calc_buf) return -ENOMEM; - nbuf->ecccalc = kmalloc(mtd->oobsize, GFP_KERNEL); - if (!nbuf->ecccalc) { + ecc->code_buf = kmalloc(mtd->oobsize, GFP_KERNEL); + if (!ecc->code_buf) { ret = -ENOMEM; - goto err_free_nbuf; + goto err_free_buf; } - nbuf->ecccode = kmalloc(mtd->oobsize, GFP_KERNEL); - if (!nbuf->ecccode) { + chip->data_buf = kmalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL); + if (!chip->data_buf) { ret = -ENOMEM; - goto err_free_nbuf; + goto err_free_buf; } - nbuf->databuf = kmalloc(mtd->writesize + mtd->oobsize, GFP_KERNEL); - if (!nbuf->databuf) { - ret = -ENOMEM; - goto err_free_nbuf; - } - - chip->buffers = nbuf; - /* * FIXME: some NAND manufacturer drivers expect the first die to be * selected when manufacturer->init() is called. They should be fixed @@ -4680,10 +4671,10 @@ int nand_scan_tail(struct mtd_info *mtd) ret = nand_manufacturer_init(chip); chip->select_chip(mtd, -1); if (ret) - goto err_free_nbuf; + goto err_free_buf; /* Set the internal oob buffer location, just after the page data */ - chip->oob_poi = chip->buffers->databuf + mtd->writesize; + chip->oob_poi = chip->data_buf + mtd->writesize; /* * If no default placement scheme is given, select an appropriate one. @@ -4969,13 +4960,10 @@ int nand_scan_tail(struct mtd_info *mtd) err_nand_manuf_cleanup: nand_manufacturer_cleanup(chip); -err_free_nbuf: - if (nbuf) { - kfree(nbuf->databuf); - kfree(nbuf->ecccode); - kfree(nbuf->ecccalc); - kfree(nbuf); - } +err_free_buf: + kfree(chip->data_buf); + kfree(ecc->code_buf); + kfree(ecc->calc_buf); return ret; } @@ -5027,12 +5015,9 @@ void nand_cleanup(struct nand_chip *chip) /* Free bad block table memory */ kfree(chip->bbt); - if (chip->buffers) { - kfree(chip->buffers->databuf); - kfree(chip->buffers->ecccode); - kfree(chip->buffers->ecccalc); - kfree(chip->buffers); - } + kfree(chip->data_buf); + kfree(chip->ecc.code_buf); + kfree(chip->ecc.calc_buf); /* Free bad block descriptor memory */ if (chip->badblock_pattern && chip->badblock_pattern->options diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 2915b67..3609285 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -898,7 +898,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b { struct nand_chip *this = mtd_to_nand(mtd); - return create_bbt(mtd, this->buffers->databuf, bd, -1); + return create_bbt(mtd, this->data_buf, bd, -1); } /** diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index dad438c..7870cb1 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -1530,7 +1530,7 @@ static int omap_write_page_bch(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf, int oob_required, int page) { int ret; - uint8_t *ecc_calc = chip->buffers->ecccalc; + uint8_t *ecc_calc = chip->ecccalc; /* Enable GPMC ecc engine */ chip->ecc.hwctl(mtd, NAND_ECC_WRITE); @@ -1568,7 +1568,7 @@ static int omap_write_subpage_bch(struct mtd_info *mtd, u32 data_len, const u8 *buf, int oob_required, int page) { - u8 *ecc_calc = chip->buffers->ecccalc; + u8 *ecc_calc = chip->ecccalc; int ecc_size = chip->ecc.size; int ecc_bytes = chip->ecc.bytes; int ecc_steps = chip->ecc.steps; @@ -1605,7 +1605,7 @@ static int omap_write_subpage_bch(struct mtd_info *mtd, /* copy calculated ECC for whole page to chip->buffer->oob */ /* this include masked-value(0xFF) for unwritten subpages */ - ecc_calc = chip->buffers->ecccalc; + ecc_calc = chip->ecccalc; ret = mtd_ooblayout_set_eccbytes(mtd, ecc_calc, chip->oob_poi, 0, chip->ecc.total); if (ret) @@ -1635,8 +1635,8 @@ static int omap_write_subpage_bch(struct mtd_info *mtd, static int omap_read_page_bch(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - uint8_t *ecc_calc = chip->buffers->ecccalc; - uint8_t *ecc_code = chip->buffers->ecccode; + uint8_t *ecc_calc = chip->ecccalc; + uint8_t *ecc_code = chip->ecccode; int stat, ret; unsigned int max_bitflips = 0; diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 82244be..9fe5994 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -1544,7 +1544,7 @@ static int sunxi_nfc_hw_common_ecc_read_oob(struct mtd_info *mtd, chip->pagebuf = -1; - return chip->ecc.read_page(mtd, chip, chip->buffers->databuf, 1, page); + return chip->ecc.read_page(mtd, chip, chip->data_buf, 1, page); } static int sunxi_nfc_hw_common_ecc_write_oob(struct mtd_info *mtd, @@ -1557,8 +1557,8 @@ static int sunxi_nfc_hw_common_ecc_write_oob(struct mtd_info *mtd, chip->pagebuf = -1; - memset(chip->buffers->databuf, 0xff, mtd->writesize); - ret = chip->ecc.write_page(mtd, chip, chip->buffers->databuf, 1, page); + memset(chip->data_buf, 0xff, mtd->writesize); + ret = chip->ecc.write_page(mtd, chip, chip->data_buf, 1, page); if (ret) return ret; diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 5b24a8e..254f847 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -520,6 +520,8 @@ static const struct nand_ecc_caps __name = { \ * @postpad: padding information for syndrome based ECC generators * @options: ECC specific options (see NAND_ECC_XXX flags defined above) * @priv: pointer to private ECC control data + * @calc_buf: buffer for calculated ECC, size is oobsize. + * @code_buf: buffer for ECC read from flash, size is oobsize. * @hwctl: function to control hardware ECC generator. Must only * be provided if an hardware ECC is available * @calculate: function for ECC calculation or readback from ECC hardware @@ -570,6 +572,8 @@ struct nand_ecc_ctrl { int postpad; unsigned int options; void *priv; + u8 *calc_buf; + u8 *code_buf; void (*hwctl)(struct mtd_info *mtd, int mode); int (*calculate)(struct mtd_info *mtd, const uint8_t *dat, uint8_t *ecc_code); @@ -603,21 +607,6 @@ static inline int nand_standard_page_accessors(struct nand_ecc_ctrl *ecc) } /** - * struct nand_buffers - buffer structure for read/write - * @ecccalc: buffer pointer for calculated ECC, size is oobsize. - * @ecccode: buffer pointer for ECC read from flash, size is oobsize. - * @databuf: buffer pointer for data, size is (page size + oobsize). - * - * Do not change the order of buffers. databuf and oobrbuf must be in - * consecutive order. - */ -struct nand_buffers { - uint8_t *ecccalc; - uint8_t *ecccode; - uint8_t *databuf; -}; - -/** * struct nand_sdr_timings - SDR NAND chip timings * * This struct defines the timing requirements of a SDR NAND chip. @@ -785,7 +774,6 @@ struct nand_manufacturer_ops { * @setup_read_retry: [FLASHSPECIFIC] flash (vendor) specific function for * setting the read-retry mode. Mostly needed for MLC NAND. * @ecc: [BOARDSPECIFIC] ECC control structure - * @buffers: buffer structure for read/write * @buf_align: minimum buffer alignment required by a platform * @hwcontrol: platform-specific hardware control structure * @erase: [REPLACEABLE] erase function @@ -825,6 +813,7 @@ struct nand_manufacturer_ops { * @numchips: [INTERN] number of physical chips * @chipsize: [INTERN] the size of one chip for multichip arrays * @pagemask: [INTERN] page number mask = number of (pages / chip) - 1 + * @data_buf: [INTERN] buffer for data, size is (page size + oobsize). * @pagebuf: [INTERN] holds the pagenumber which is currently in * data_buf. * @pagebuf_bitflips: [INTERN] holds the bitflip count for the page which is @@ -903,6 +892,7 @@ struct nand_chip { int numchips; uint64_t chipsize; int pagemask; + u8 *data_buf; int pagebuf; unsigned int pagebuf_bitflips; int subpagesize; @@ -933,7 +923,6 @@ struct nand_chip { struct nand_hw_control *controller; struct nand_ecc_ctrl ecc; - struct nand_buffers *buffers; unsigned long buf_align; struct nand_hw_control hwcontrol;