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client-ip=66.35.236.227; helo=sj-itexedge03.altera.priv.altera.com; Received: from sj-itexedge03.altera.priv.altera.com (66.35.236.227) by BN1BFFO11FD056.mail.protection.outlook.com (10.58.145.11) with Microsoft SMTP Server (TLS) id 15.1.184.11 via Frontend Transport; Thu, 4 Jun 2015 14:27:36 +0000 Received: from na01-bl2-obe.outbound.protection.outlook.com (207.46.163.205) by webmail.altera.com (66.35.236.227) with Microsoft SMTP Server (TLS) id 14.3.174.1; Thu, 4 Jun 2015 07:25:28 -0700 Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=tthayer@opensource.altera.com; Received: from localhost.localdomain (64.129.157.38) by BLUPR03MB423.namprd03.prod.outlook.com (10.141.78.150) with Microsoft SMTP Server (TLS) id 15.1.184.10; Thu, 4 Jun 2015 14:27:06 +0000 From: To: , , , , , , , , , , Subject: [PATCHv2 3/4] edac, altera: Addition of Arria10 EDAC Date: Thu, 4 Jun 2015 09:28:47 -0500 Message-ID: <1433428128-7292-4-git-send-email-tthayer@opensource.altera.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1433428128-7292-1-git-send-email-tthayer@opensource.altera.com> References: <1433428128-7292-1-git-send-email-tthayer@opensource.altera.com> MIME-Version: 1.0 X-Originating-IP: [64.129.157.38] X-ClientProxiedBy: SN1PR12CA0039.namprd12.prod.outlook.com (25.162.96.177) To BLUPR03MB423.namprd03.prod.outlook.com (10.141.78.150) X-Microsoft-Exchange-Diagnostics-untrusted: 1; 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This patch adds support for the Arria10 SoC. 1) IRQ handler needs to support SHARED IRQ 2) Support sberr and dberr address reporting. Signed-off-by: Thor Thayer --- v2: Reposition a10_unmask_irq(). Use simple request_mem_region(), ioremap() instead of devm versions. Make a10_data static. --- drivers/edac/altera_edac.c | 135 ++++++++++++++++++++++++++++++++++++++------ drivers/edac/altera_edac.h | 85 ++++++++++++++++++++++++++++ 2 files changed, 204 insertions(+), 16 deletions(-) diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index a8350f6..bee475b 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -42,6 +42,7 @@ static const struct altr_sdram_prv_data c5_data = { .ecc_stat_ce_mask = CV_DRAMSTS_SBEERR, .ecc_stat_ue_mask = CV_DRAMSTS_DBEERR, .ecc_saddr_offset = CV_ERRADDR_OFST, + .ecc_daddr_offset = CV_ERRADDR_OFST, .ecc_cecnt_offset = CV_SBECOUNT_OFST, .ecc_uecnt_offset = CV_DBECOUNT_OFST, .ecc_irq_en_offset = CV_DRAMINTR_OFST, @@ -57,37 +58,62 @@ static const struct altr_sdram_prv_data c5_data = { #endif }; +static const struct altr_sdram_prv_data a10_data = { + .ecc_ctrl_offset = A10_ECCCTRL1_OFST, + .ecc_ctl_en_mask = A10_ECCCTRL1_ECC_EN, + .ecc_stat_offset = A10_INTSTAT_OFST, + .ecc_stat_ce_mask = A10_INTSTAT_SBEERR, + .ecc_stat_ue_mask = A10_INTSTAT_DBEERR, + .ecc_saddr_offset = A10_SERRADDR_OFST, + .ecc_daddr_offset = A10_DERRADDR_OFST, + .ecc_irq_en_offset = A10_ERRINTEN_OFST, + .ecc_irq_en_mask = A10_ECC_IRQ_EN_MASK, + .ecc_irq_clr_offset = A10_INTSTAT_OFST, + .ecc_irq_clr_mask = (A10_INTSTAT_SBEERR | A10_INTSTAT_DBEERR), + .ecc_cnt_rst_offset = A10_ECCCTRL1_OFST, + .ecc_cnt_rst_mask = A10_ECC_CNT_RESET_MASK, +#ifdef CONFIG_EDAC_DEBUG + .ce_ue_trgr_offset = A10_DIAGINTTEST_OFST, + .ce_set_mask = A10_DIAGINT_TSERRA_MASK, + .ue_set_mask = A10_DIAGINT_TDERRA_MASK, +#endif +}; + static irqreturn_t altr_sdram_mc_err_handler(int irq, void *dev_id) { struct mem_ctl_info *mci = dev_id; struct altr_sdram_mc_data *drvdata = mci->pvt_info; const struct altr_sdram_prv_data *priv = drvdata->data; - u32 status, err_count, err_addr; - - /* Error Address is shared by both SBE & DBE */ - regmap_read(drvdata->mc_vbase, priv->ecc_saddr_offset, &err_addr); + u32 status, err_count = 1, err_addr; regmap_read(drvdata->mc_vbase, priv->ecc_stat_offset, &status); if (status & priv->ecc_stat_ue_mask) { - regmap_read(drvdata->mc_vbase, priv->ecc_uecnt_offset, - &err_count); + regmap_read(drvdata->mc_vbase, priv->ecc_daddr_offset, + &err_addr); + if (priv->ecc_uecnt_offset) + regmap_read(drvdata->mc_vbase, priv->ecc_uecnt_offset, + &err_count); panic("\nEDAC: [%d Uncorrectable errors @ 0x%08X]\n", err_count, err_addr); } if (status & priv->ecc_stat_ce_mask) { - regmap_read(drvdata->mc_vbase, priv->ecc_cecnt_offset, - &err_count); + regmap_read(drvdata->mc_vbase, priv->ecc_saddr_offset, + &err_addr); + if (priv->ecc_uecnt_offset) + regmap_read(drvdata->mc_vbase, priv->ecc_cecnt_offset, + &err_count); edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, err_count, err_addr >> PAGE_SHIFT, err_addr & ~PAGE_MASK, 0, 0, 0, -1, mci->ctl_name, ""); - } - - regmap_write(drvdata->mc_vbase, priv->ecc_irq_clr_offset, - priv->ecc_irq_clr_mask); + /* Clear IRQ to resume */ + regmap_write(drvdata->mc_vbase, priv->ecc_irq_clr_offset, + priv->ecc_irq_clr_mask); - return IRQ_HANDLED; + return IRQ_HANDLED; + } + return IRQ_NONE; } #ifdef CONFIG_EDAC_DEBUG @@ -203,10 +229,60 @@ static unsigned long get_total_mem(void) static const struct of_device_id altr_sdram_ctrl_of_match[] = { { .compatible = "altr,sdram-edac", .data = (void *)&c5_data}, + { .compatible = "altr,sdram-edac-a10", .data = (void *)&a10_data}, {}, }; MODULE_DEVICE_TABLE(of, altr_sdram_ctrl_of_match); +static int a10_init(struct regmap *mc_vbase) +{ + if (regmap_update_bits(mc_vbase, A10_INTMODE_OFST, + A10_INTMODE_SB_INT, A10_INTMODE_SB_INT)) { + edac_printk(KERN_ERR, EDAC_MC, + "Error setting SB IRQ mode\n"); + return -ENODEV; + } + + if (regmap_write(mc_vbase, A10_SERRCNTREG_OFST, 1)) { + edac_printk(KERN_ERR, EDAC_MC, + "Error setting trigger count\n"); + return -ENODEV; + } + + return 0; +} + +static int a10_unmask_irq(struct platform_device *pdev, u32 mask) +{ + void __iomem *sm_base; + int ret = 0; + + if (!request_mem_region(A10_SYMAN_INTMASK_CLR, sizeof(u32), + dev_name(&pdev->dev))) { + edac_printk(KERN_ERR, EDAC_MC, + "Unable to request mem region\n"); + return -EBUSY; + } + + sm_base = ioremap(A10_SYMAN_INTMASK_CLR, sizeof(u32)); + if (!sm_base) { + edac_printk(KERN_ERR, EDAC_MC, + "Unable to ioremap device\n"); + + ret = -ENOMEM; + goto release; + } + + iowrite32(mask, sm_base); + + iounmap(sm_base); + +release: + release_mem_region(A10_SYMAN_INTMASK_CLR, sizeof(u32)); + + return ret; +} + static int altr_sdram_probe(struct platform_device *pdev) { const struct of_device_id *id; @@ -217,8 +293,8 @@ static int altr_sdram_probe(struct platform_device *pdev) struct regmap *mc_vbase; struct dimm_info *dimm; u32 read_reg; - int irq, res = 0; - unsigned long mem_size; + int irq, irq2, res = 0; + unsigned long mem_size, irqflags = 0; id = of_match_device(altr_sdram_ctrl_of_match, &pdev->dev); if (!id) @@ -284,6 +360,9 @@ static int altr_sdram_probe(struct platform_device *pdev) return -ENODEV; } + /* Arria10 has a 2nd IRQ */ + irq2 = platform_get_irq(pdev, 1); + layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; layers[0].size = 1; layers[0].is_virt_csrow = true; @@ -328,8 +407,32 @@ static int altr_sdram_probe(struct platform_device *pdev) if (res < 0) goto err; + /* Only the Arria10 has separate IRQs */ + if (irq2 > 0) { + /* Arria10 specific initialization */ + res = a10_init(mc_vbase); + if (res < 0) + goto err2; + + res = devm_request_irq(&pdev->dev, irq2, + altr_sdram_mc_err_handler, + IRQF_SHARED, dev_name(&pdev->dev), mci); + if (res < 0) { + edac_mc_printk(mci, KERN_ERR, + "Unable to request irq %d\n", irq2); + res = -ENODEV; + goto err2; + } + + res = a10_unmask_irq(pdev, A10_DDR0_IRQ_MASK); + if (res < 0) + goto err2; + + irqflags = IRQF_SHARED; + } + res = devm_request_irq(&pdev->dev, irq, altr_sdram_mc_err_handler, - 0, dev_name(&pdev->dev), mci); + irqflags, dev_name(&pdev->dev), mci); if (res < 0) { edac_mc_printk(mci, KERN_ERR, "Unable to request irq %d\n", irq); diff --git a/drivers/edac/altera_edac.h b/drivers/edac/altera_edac.h index b744d91..7b64dc7 100644 --- a/drivers/edac/altera_edac.h +++ b/drivers/edac/altera_edac.h @@ -80,6 +80,91 @@ /* SDRAM Controller ECC Error Address Register */ #define CV_ERRADDR_OFST 0x48 +/*-----------------------------------------*/ + +/* SDRAM Controller EccCtrl Register */ +#define A10_ECCCTRL1_OFST 0x00 + +/* SDRAM Controller EccCtrl Register Bit Masks */ +#define A10_ECCCTRL1_ECC_EN 0x001 +#define A10_ECCCTRL1_CNT_RST 0x010 +#define A10_ECCCTRL1_AWB_CNT_RST 0x100 +#define A10_ECC_CNT_RESET_MASK (A10_ECCCTRL1_CNT_RST | \ + A10_ECCCTRL1_AWB_CNT_RST) + +/* SDRAM Controller Address Width Register */ +#define CV_DRAMADDRW 0xFFC2502C +#define A10_DRAMADDRW 0xFFCFA0A8 + +/* SDRAM Controller Address Widths Field Register */ +#define DRAMADDRW_COLBIT_MASK 0x001F +#define DRAMADDRW_COLBIT_SHIFT 0 +#define DRAMADDRW_ROWBIT_MASK 0x03E0 +#define DRAMADDRW_ROWBIT_SHIFT 5 +#define CV_DRAMADDRW_BANKBIT_MASK 0x1C00 +#define CV_DRAMADDRW_BANKBIT_SHIFT 10 +#define CV_DRAMADDRW_CSBIT_MASK 0xE000 +#define CV_DRAMADDRW_CSBIT_SHIFT 13 + +#define A10_DRAMADDRW_BANKBIT_MASK 0x3C00 +#define A10_DRAMADDRW_BANKBIT_SHIFT 10 +#define A10_DRAMADDRW_GRPBIT_MASK 0xC000 +#define A10_DRAMADDRW_GRPBIT_SHIFT 14 +#define A10_DRAMADDRW_CSBIT_MASK 0x70000 +#define A10_DRAMADDRW_CSBIT_SHIFT 16 + +/* SDRAM Controller Interface Data Width Register */ +#define CV_DRAMIFWIDTH 0xFFC25030 +#define A10_DRAMIFWIDTH 0xFFCFB008 + +/* SDRAM Controller Interface Data Width Defines */ +#define CV_DRAMIFWIDTH_16B_ECC 24 +#define CV_DRAMIFWIDTH_32B_ECC 40 + +#define A10_DRAMIFWIDTH_16B 0x0 +#define A10_DRAMIFWIDTH_32B 0x1 +#define A10_DRAMIFWIDTH_64B 0x2 + +/* SDRAM Controller DRAM IRQ Register */ +#define A10_ERRINTEN_OFST 0x10 + +/* SDRAM Controller DRAM IRQ Register Bit Masks */ +#define A10_ERRINTEN_SERRINTEN 0x01 +#define A10_ERRINTEN_DERRINTEN 0x02 +#define A10_ECC_IRQ_EN_MASK (A10_ERRINTEN_SERRINTEN | \ + A10_ERRINTEN_DERRINTEN) + +/* SDRAM Interrupt Mode Register */ +#define A10_INTMODE_OFST 0x1C +#define A10_INTMODE_SB_INT 1 + +/* SDRAM Controller Error Status Register */ +#define A10_INTSTAT_OFST 0x20 + +/* SDRAM Controller Error Status Register Bit Masks */ +#define A10_INTSTAT_SBEERR 0x01 +#define A10_INTSTAT_DBEERR 0x02 + +/* SDRAM Controller ECC Error Address Register */ +#define A10_DERRADDR_OFST 0x2C +#define A10_SERRADDR_OFST 0x30 + +/* SDRAM Controller ECC Diagnostic Register */ +#define A10_DIAGINTTEST_OFST 0x24 + +#define A10_DIAGINT_TSERRA_MASK 0x0001 +#define A10_DIAGINT_TDERRA_MASK 0x0100 + +#define A10_SBERR_IRQ 34 +#define A10_DBERR_IRQ 32 + +/* SDRAM Single Bit Error Count Compare Set Register */ +#define A10_SERRCNTREG_OFST 0x3C + +#define A10_SYMAN_INTMASK_CLR 0xFFD06098 +#define A10_INTMASK_CLR_OFST 0x10 +#define A10_DDR0_IRQ_MASK BIT(17) + struct altr_sdram_prv_data { int ecc_ctrl_offset; int ecc_ctl_en_mask;