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X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, tthayer@opensource.altera.com, linux-arm-kernel@lists.infradead.org, linux-edac@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.1 required=5.0 tests=BAD_ENC_HEADER,BAYES_00, DKIM_SIGNED,RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Thor Thayer Addition of the Arria10 On-Chip RAM ECC handling. Addition of private data structure for Arria10 OCRAM ECC. Addition of a new file operations function and trigger function for Arria10 OCRAM and other peripheral memories. Signed-off-by: Thor Thayer --- v2: Remove the Arria10 ECC block init functions. --- drivers/edac/altera_edac.c | 78 ++++++++++++++++++++++++++++++++++++++++++++ drivers/edac/altera_edac.h | 35 ++++++++++++++++++++ 2 files changed, 113 insertions(+) diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index f7ffc77..11775dc 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -550,6 +550,7 @@ module_platform_driver(altr_edac_driver); const struct edac_device_prv_data ocramecc_data; const struct edac_device_prv_data l2ecc_data; +const struct edac_device_prv_data a10_ocramecc_data; const struct edac_device_prv_data a10_l2ecc_data; static irqreturn_t altr_edac_device_handler(int irq, void *dev_id) @@ -674,6 +675,16 @@ static const struct file_operations altr_edac_device_inject_fops = { .llseek = generic_file_llseek, }; +static ssize_t altr_edac_a10_device_trig(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos); + +static const struct file_operations altr_edac_a10_device_inject_fops = { + .open = simple_open, + .write = altr_edac_a10_device_trig, + .llseek = generic_file_llseek, +}; + static void altr_create_edacdev_dbgfs(struct edac_device_ctl_info *edac_dci, const struct edac_device_prv_data *priv) { @@ -701,6 +712,8 @@ static const struct of_device_id altr_edac_device_of_match[] = { #ifdef CONFIG_EDAC_ALTERA_OCRAM { .compatible = "altr,socfpga-ocram-ecc", .data = (void *)&ocramecc_data }, + { .compatible = "altr,socfpga-a10-ocram-ecc", + .data = (void *)&a10_ocramecc_data }, #endif {}, }; @@ -889,6 +902,24 @@ const struct edac_device_prv_data ocramecc_data = { .inject_fops = &altr_edac_device_inject_fops, }; +static irqreturn_t altr_edac_a10_ecc_irq(struct altr_edac_device_dev *dci, + bool sberr); + +const struct edac_device_prv_data a10_ocramecc_data = { + .setup = altr_check_ecc_deps, + .ce_clear_mask = ALTR_A10_ECC_SERRPENA, + .ue_clear_mask = ALTR_A10_ECC_DERRPENA, + .irq_status_mask = A10_SYSMGR_ECC_INTSTAT_OCRAM, + .dbgfs_name = "altr_ocram_trigger", + .ecc_enable_mask = ALTR_A10_OCRAM_ECC_EN_CTL, + .ecc_en_ofst = ALTR_A10_ECC_CTRL_OFST, + .ce_set_mask = ALTR_A10_ECC_TSERRA, + .ue_set_mask = ALTR_A10_ECC_TDERRA, + .set_err_ofst = ALTR_A10_ECC_INTTEST_OFST, + .ecc_irq_handler = altr_edac_a10_ecc_irq, + .inject_fops = &altr_edac_a10_device_inject_fops, +}; + #endif /* CONFIG_EDAC_ALTERA_OCRAM */ /********************* L2 Cache EDAC Device Functions ********************/ @@ -1007,6 +1038,50 @@ const struct edac_device_prv_data a10_l2ecc_data = { * Based on xgene_edac.c peripheral code. */ +static ssize_t altr_edac_a10_device_trig(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct edac_device_ctl_info *edac_dci = file->private_data; + struct altr_edac_device_dev *drvdata = edac_dci->pvt_info; + const struct edac_device_prv_data *priv = drvdata->data; + void __iomem *set_addr = (drvdata->base + priv->set_err_ofst); + unsigned long flags; + u8 trig_type; + + if (!user_buf || get_user(trig_type, user_buf)) + return -EFAULT; + + local_irq_save(flags); + if (trig_type == ALTR_UE_TRIGGER_CHAR) + writel(priv->ue_set_mask, set_addr); + else + writel(priv->ce_set_mask, set_addr); + /* Ensure the interrupt test bits are set */ + wmb(); + local_irq_restore(flags); + + return count; +} + +static irqreturn_t altr_edac_a10_ecc_irq(struct altr_edac_device_dev *dci, + bool sberr) +{ + void __iomem *base = dci->base; + + if (sberr) { + writel(ALTR_A10_ECC_SERRPENA, + base + ALTR_A10_ECC_INTSTAT_OFST); + edac_device_handle_ce(dci->edac_dev, 0, 0, dci->edac_dev_name); + } else { + writel(ALTR_A10_ECC_DERRPENA, + base + ALTR_A10_ECC_INTSTAT_OFST); + edac_device_handle_ue(dci->edac_dev, 0, 0, dci->edac_dev_name); + panic("\nEDAC:ECC_DEVICE[Uncorrectable errors]\n"); + } + return IRQ_HANDLED; +} + static irqreturn_t altr_edac_a10_irq_handler(int irq, void *dev_id) { irqreturn_t rc = IRQ_NONE; @@ -1171,6 +1246,9 @@ static int altr_edac_a10_probe(struct platform_device *pdev) continue; if (of_device_is_compatible(child, "altr,socfpga-a10-l2-ecc")) altr_edac_a10_device_add(edac, child); + else if (of_device_is_compatible(child, + "altr,socfpga-a10-ocram-ecc")) + altr_edac_a10_device_add(edac, child); } return 0; diff --git a/drivers/edac/altera_edac.h b/drivers/edac/altera_edac.h index cb6b2b9..42090f3 100644 --- a/drivers/edac/altera_edac.h +++ b/drivers/edac/altera_edac.h @@ -220,9 +220,41 @@ struct altr_sdram_mc_data { #define ALTR_L2_ECC_INJD BIT(2) /* Arria10 General ECC Block Module Defines */ +#define ALTR_A10_ECC_CTRL_OFST 0x08 +#define ALTR_A10_ECC_EN BIT(0) +#define ALTR_A10_ECC_INITA BIT(16) +#define ALTR_A10_ECC_INITB BIT(24) + +#define ALTR_A10_ECC_INITSTAT_OFST 0x0C +#define ALTR_A10_ECC_INITCOMPLETEA BIT(0) +#define ALTR_A10_ECC_INITCOMPLETEB BIT(8) + +#define ALTR_A10_ECC_ERRINTEN_OFST 0x10 +#define ALTR_A10_ECC_SERRINTEN BIT(0) + +#define ALTR_A10_ECC_INTSTAT_OFST 0x20 +#define ALTR_A10_ECC_SERRPENA BIT(0) +#define ALTR_A10_ECC_DERRPENA BIT(8) +#define ALTR_A10_ECC_ERRPENA_MASK (ALTR_A10_ECC_SERRPENA | \ + ALTR_A10_ECC_DERRPENA) +#define ALTR_A10_ECC_SERRPENB BIT(16) +#define ALTR_A10_ECC_DERRPENB BIT(24) +#define ALTR_A10_ECC_ERRPENB_MASK (ALTR_A10_ECC_SERRPENB | \ + ALTR_A10_ECC_DERRPENB) + +#define ALTR_A10_ECC_INTTEST_OFST 0x24 +#define ALTR_A10_ECC_TSERRA BIT(0) +#define ALTR_A10_ECC_TDERRA BIT(8) + +/* ECC Manager Defines */ +#define A10_SYSMGR_ECC_INTMASK_SET_OFST 0x94 +#define A10_SYSMGR_ECC_INTMASK_CLR_OFST 0x98 +#define A10_SYSMGR_ECC_INTMASK_OCRAM BIT(1) + #define A10_SYSMGR_ECC_INTSTAT_SERR_OFST 0x9C #define A10_SYSMGR_ECC_INTSTAT_DERR_OFST 0xA0 #define A10_SYSMGR_ECC_INTSTAT_L2 BIT(0) +#define A10_SYSMGR_ECC_INTSTAT_OCRAM BIT(1) #define A10_SYSGMR_MPU_CLEAR_L2_ECC_OFST 0xA8 #define A10_SYSGMR_MPU_CLEAR_L2_ECC_SB BIT(15) @@ -245,6 +277,9 @@ struct altr_sdram_mc_data { #define ALTR_A10_L2_ECC_CE_INJ_MASK 0x00000101 #define ALTR_A10_L2_ECC_UE_INJ_MASK 0x00010101 +/* Arria 10 OCRAM ECC Management Group Defines */ +#define ALTR_A10_OCRAM_ECC_EN_CTL (BIT(1) | BIT(0)) + struct altr_edac_device_dev; struct edac_device_prv_data {