From patchwork Fri Sep 13 21:07:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lorenzo@kernel.org" X-Patchwork-Id: 13804078 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 BBBD3126C01 for ; Fri, 13 Sep 2024 21:07:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726261663; cv=none; b=ALeqDTUl16/dKzlN2wbv9f71UkVh/HKtIRLe3jxx80hXnbQ0Ge5dZwqOQwaeYUWhLFEPGHj7lwujLbNvP29/ECEhS7MyjQyEriX+y2TLpmDu9I6AxTQVpxSdig6xU36VqGBZY9FyHeGotcyiOUrPhXbFEQxUM+x0Pev6hl9NpQM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726261663; c=relaxed/simple; bh=sVwfHoXKnb1nvxGo5YmthEsmu41bkHDt+t3Z3PhqUGE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ij/kveZH5BvkY7QnrLDXIy8g99ltkjRHWjSciU8LVqaVfGW+7pNzxNpEKYgUfwXBdss1rLFCsOzCYb4fINgEgzjodaRx3zKP7Sh5m4KGKox4dv2GRYlYebWu3fD0TXYw68SqlZJU3KH0PoQZPrPjtSEZ4VcRwwRDK1IB0/Ik7c8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JS+XAp+3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JS+XAp+3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0B147C4CEC0; Fri, 13 Sep 2024 21:07:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1726261663; bh=sVwfHoXKnb1nvxGo5YmthEsmu41bkHDt+t3Z3PhqUGE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=JS+XAp+31Rumk0g/OvmlItf9smz0FHGU4JFHhh1P3nu+vUE6acVYjApB7WR/jbHpx m8ztuNp8mOBCVKZqFnJaY35+52V+AJix8fqYKNXD5DVkXxhdTmpE2GLpkirht1tWMC i9bUmUu65YR94wp6E6w0tckMccPCx/q7lnAjZHbuOeHbj9mSYZO4d1iU+LFRgxkljq oQDcAFMyxCUyDp93+PFB8BuXNWmJpB5T5lHV8o7nJOwNgvs4oehguHGopF5frj6yy9 lG+TyBaRoAGf990xFbLJts7GDHimhqpsEPlkXWPqavUuMrgPI8/Q8zW1Sf36aBiaCj e+ab6yRQ9W9Cw== From: Lorenzo Bianconi Date: Fri, 13 Sep 2024 23:07:15 +0200 Subject: [PATCH 3/4] spi: airoha: remove read cache in airoha_snand_dirmap_read Precedence: bulk X-Mailing-List: linux-spi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240913-airoha-spi-fixes-v1-3-de2e74ed4664@kernel.org> References: <20240913-airoha-spi-fixes-v1-0-de2e74ed4664@kernel.org> In-Reply-To: <20240913-airoha-spi-fixes-v1-0-de2e74ed4664@kernel.org> To: Lorenzo Bianconi , Ray Liu , Mark Brown , AngeloGioacchino Del Regno , Andy Shevchenko Cc: Christian Marangi , linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org, upstream@airoha.com X-Mailer: b4 0.14.1 Get rid of read cache in airoha_snand_dirmap_read routine since it introduces errors in mtd_oobtest kernel module test and it does not add any performance improvements in mtd_speedtest kernel module test. Fixes: a403997c1201 ("spi: airoha: add SPI-NAND Flash controller driver") Tested-by: Christian Marangi Signed-off-by: Lorenzo Bianconi --- drivers/spi/spi-airoha-snfi.c | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/drivers/spi/spi-airoha-snfi.c b/drivers/spi/spi-airoha-snfi.c index c71be702cf6f..94458df53eae 100644 --- a/drivers/spi/spi-airoha-snfi.c +++ b/drivers/spi/spi-airoha-snfi.c @@ -211,9 +211,6 @@ struct airoha_snand_dev { u8 *txrx_buf; dma_addr_t dma_addr; - - u64 cur_page_num; - bool data_need_update; }; struct airoha_snand_ctrl { @@ -644,11 +641,6 @@ static ssize_t airoha_snand_dirmap_read(struct spi_mem_dirmap_desc *desc, u32 val, rd_mode; int err; - if (!as_dev->data_need_update) - return len; - - as_dev->data_need_update = false; - switch (op->cmd.opcode) { case SPI_NAND_OP_READ_FROM_CACHE_DUAL: rd_mode = 1; @@ -895,23 +887,11 @@ static ssize_t airoha_snand_dirmap_write(struct spi_mem_dirmap_desc *desc, static int airoha_snand_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) { - struct airoha_snand_dev *as_dev = spi_get_ctldata(mem->spi); u8 data[8], cmd, opcode = op->cmd.opcode; struct airoha_snand_ctrl *as_ctrl; int i, err; as_ctrl = spi_controller_get_devdata(mem->spi->controller); - if (opcode == SPI_NAND_OP_PROGRAM_EXECUTE && - op->addr.val == as_dev->cur_page_num) { - as_dev->data_need_update = true; - } else if (opcode == SPI_NAND_OP_PAGE_READ) { - if (!as_dev->data_need_update && - op->addr.val == as_dev->cur_page_num) - return 0; - - as_dev->data_need_update = true; - as_dev->cur_page_num = op->addr.val; - } /* switch to manual mode */ err = airoha_snand_set_mode(as_ctrl, SPI_MODE_MANUAL); @@ -996,7 +976,6 @@ static int airoha_snand_setup(struct spi_device *spi) if (dma_mapping_error(as_ctrl->dev, as_dev->dma_addr)) return -ENOMEM; - as_dev->data_need_update = true; spi_set_ctldata(spi, as_dev); return 0;