From 08f08bfb7b4cc7b7037c8818acb1b6abccf2bd0e Mon Sep 17 00:00:00 2001 From: Thor Thayer Date: Tue, 25 Sep 2018 08:49:00 -0500 Subject: [PATCH] EDAC, altera: Merge Stratix10 into the Arria10 SDRAM probe routine Change Stratix10 regmap to use offsets from a base to match the Arria10 regmap and allow re-use of the Arria10 functions. Only the regmap initialization differs (Arria10 mmio_regmap vs Stratix10 custom regmap). Modify the SDRAM probe function to handle Stratix10. Remove the Stratix10 offset defines if Arria10 can be used. Remove the unused Stratix10 probe function. Signed-off-by: Thor Thayer Signed-off-by: Borislav Petkov Cc: dinguyen@kernel.org Cc: robh+dt@kernel.org Cc: mark.rutland@arm.com Cc: mchehab@kernel.org Cc: devicetree@vger.kernel.org Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/1537883342-30180-5-git-send-email-thor.thayer@linux.intel.com --- drivers/edac/altera_edac.c | 276 ++----------------------------------- drivers/edac/altera_edac.h | 38 +---- 2 files changed, 14 insertions(+), 300 deletions(-) diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index e2b66a20d064..48b58063a7a3 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -69,25 +69,6 @@ static const struct altr_sdram_prv_data a10_data = { .ue_set_mask = A10_DIAGINT_TDERRA_MASK, }; -static const struct altr_sdram_prv_data s10_data = { - .ecc_ctrl_offset = S10_ECCCTRL1_OFST, - .ecc_ctl_en_mask = A10_ECCCTRL1_ECC_EN, - .ecc_stat_offset = S10_INTSTAT_OFST, - .ecc_stat_ce_mask = A10_INTSTAT_SBEERR, - .ecc_stat_ue_mask = A10_INTSTAT_DBEERR, - .ecc_saddr_offset = S10_SERRADDR_OFST, - .ecc_daddr_offset = S10_DERRADDR_OFST, - .ecc_irq_en_offset = S10_ERRINTEN_OFST, - .ecc_irq_en_mask = A10_ECC_IRQ_EN_MASK, - .ecc_irq_clr_offset = S10_INTSTAT_OFST, - .ecc_irq_clr_mask = (A10_INTSTAT_SBEERR | A10_INTSTAT_DBEERR), - .ecc_cnt_rst_offset = S10_ECCCTRL1_OFST, - .ecc_cnt_rst_mask = A10_ECC_CNT_RESET_MASK, - .ce_ue_trgr_offset = S10_DIAGINTTEST_OFST, - .ce_set_mask = A10_DIAGINT_TSERRA_MASK, - .ue_set_mask = A10_DIAGINT_TDERRA_MASK, -}; - /*********************** EDAC Memory Controller Functions ****************/ /* The SDRAM controller uses the EDAC Memory Controller framework. */ @@ -239,7 +220,7 @@ static unsigned long get_total_mem(void) static const struct of_device_id altr_sdram_ctrl_of_match[] = { { .compatible = "altr,sdram-edac", .data = &c5_data}, { .compatible = "altr,sdram-edac-a10", .data = &a10_data}, - { .compatible = "altr,sdram-edac-s10", .data = &s10_data}, + { .compatible = "altr,sdram-edac-s10", .data = &a10_data}, {}, }; MODULE_DEVICE_TABLE(of, altr_sdram_ctrl_of_match); @@ -293,6 +274,7 @@ static int a10_unmask_irq(struct platform_device *pdev, u32 mask) return ret; } +static int socfpga_is_a10(void); static int altr_sdram_probe(struct platform_device *pdev) { const struct of_device_id *id; @@ -416,7 +398,7 @@ static int altr_sdram_probe(struct platform_device *pdev) goto err; /* Only the Arria10 has separate IRQs */ - if (irq2 > 0) { + if (socfpga_is_a10()) { /* Arria10 specific initialization */ res = a10_init(mc_vbase); if (res < 0) @@ -502,8 +484,9 @@ static int s10_protected_reg_write(void *context, unsigned int reg, unsigned int val) { struct arm_smccc_res result; + unsigned long offset = (unsigned long)context; - arm_smccc_smc(INTEL_SIP_SMC_REG_WRITE, reg, val, 0, 0, + arm_smccc_smc(INTEL_SIP_SMC_REG_WRITE, offset + reg, val, 0, 0, 0, 0, 0, &result); return (int)result.a0; @@ -523,8 +506,9 @@ static int s10_protected_reg_read(void *context, unsigned int reg, unsigned int *val) { struct arm_smccc_res result; + unsigned long offset = (unsigned long)context; - arm_smccc_smc(INTEL_SIP_SMC_REG_READ, reg, 0, 0, 0, + arm_smccc_smc(INTEL_SIP_SMC_REG_READ, offset + reg, 0, 0, 0, 0, 0, 0, &result); *val = (unsigned int)result.a1; @@ -532,245 +516,17 @@ static int s10_protected_reg_read(void *context, unsigned int reg, return (int)result.a0; } -static bool s10_sdram_writeable_reg(struct device *dev, unsigned int reg) -{ - switch (reg) { - case S10_ECCCTRL1_OFST: - case S10_ERRINTEN_OFST: - case S10_INTMODE_OFST: - case S10_INTSTAT_OFST: - case S10_DIAGINTTEST_OFST: - case S10_SYSMGR_ECC_INTMASK_VAL_OFST: - case S10_SYSMGR_ECC_INTMASK_SET_OFST: - case S10_SYSMGR_ECC_INTMASK_CLR_OFST: - return true; - } - return false; -} - -static bool s10_sdram_readable_reg(struct device *dev, unsigned int reg) -{ - switch (reg) { - case S10_ECCCTRL1_OFST: - case S10_ERRINTEN_OFST: - case S10_INTMODE_OFST: - case S10_INTSTAT_OFST: - case S10_DERRADDR_OFST: - case S10_SERRADDR_OFST: - case S10_DIAGINTTEST_OFST: - case S10_SYSMGR_ECC_INTMASK_VAL_OFST: - case S10_SYSMGR_ECC_INTMASK_SET_OFST: - case S10_SYSMGR_ECC_INTMASK_CLR_OFST: - case S10_SYSMGR_ECC_INTSTAT_SERR_OFST: - case S10_SYSMGR_ECC_INTSTAT_DERR_OFST: - return true; - } - return false; -} - -static bool s10_sdram_volatile_reg(struct device *dev, unsigned int reg) -{ - switch (reg) { - case S10_ECCCTRL1_OFST: - case S10_ERRINTEN_OFST: - case S10_INTMODE_OFST: - case S10_INTSTAT_OFST: - case S10_DERRADDR_OFST: - case S10_SERRADDR_OFST: - case S10_DIAGINTTEST_OFST: - case S10_SYSMGR_ECC_INTMASK_VAL_OFST: - case S10_SYSMGR_ECC_INTMASK_SET_OFST: - case S10_SYSMGR_ECC_INTMASK_CLR_OFST: - case S10_SYSMGR_ECC_INTSTAT_SERR_OFST: - case S10_SYSMGR_ECC_INTSTAT_DERR_OFST: - return true; - } - return false; -} - static const struct regmap_config s10_sdram_regmap_cfg = { .name = "s10_ddr", .reg_bits = 32, .reg_stride = 4, .val_bits = 32, - .max_register = 0xffffffff, - .writeable_reg = s10_sdram_writeable_reg, - .readable_reg = s10_sdram_readable_reg, - .volatile_reg = s10_sdram_volatile_reg, + .max_register = 0xffd12228, .reg_read = s10_protected_reg_read, .reg_write = s10_protected_reg_write, .use_single_rw = true, }; -static int altr_s10_sdram_probe(struct platform_device *pdev) -{ - const struct of_device_id *id; - struct edac_mc_layer layers[2]; - struct mem_ctl_info *mci; - struct altr_sdram_mc_data *drvdata; - const struct altr_sdram_prv_data *priv; - struct regmap *regmap; - struct dimm_info *dimm; - u32 read_reg; - int irq, ret = 0; - unsigned long mem_size; - - id = of_match_device(altr_sdram_ctrl_of_match, &pdev->dev); - if (!id) - return -ENODEV; - - /* Grab specific offsets and masks for Stratix10 */ - priv = of_match_node(altr_sdram_ctrl_of_match, - pdev->dev.of_node)->data; - - regmap = devm_regmap_init(&pdev->dev, NULL, (void *)priv, - &s10_sdram_regmap_cfg); - if (IS_ERR(regmap)) - return PTR_ERR(regmap); - - /* Validate the SDRAM controller has ECC enabled */ - if (regmap_read(regmap, priv->ecc_ctrl_offset, &read_reg) || - ((read_reg & priv->ecc_ctl_en_mask) != priv->ecc_ctl_en_mask)) { - edac_printk(KERN_ERR, EDAC_MC, - "No ECC/ECC disabled [0x%08X]\n", read_reg); - return -ENODEV; - } - - /* Grab memory size from device tree. */ - mem_size = get_total_mem(); - if (!mem_size) { - edac_printk(KERN_ERR, EDAC_MC, "Unable to calculate memory size\n"); - return -ENODEV; - } - - /* Ensure the SDRAM Interrupt is disabled */ - if (regmap_update_bits(regmap, priv->ecc_irq_en_offset, - priv->ecc_irq_en_mask, 0)) { - edac_printk(KERN_ERR, EDAC_MC, - "Error disabling SDRAM ECC IRQ\n"); - return -ENODEV; - } - - /* Toggle to clear the SDRAM Error count */ - if (regmap_update_bits(regmap, priv->ecc_cnt_rst_offset, - priv->ecc_cnt_rst_mask, - priv->ecc_cnt_rst_mask)) { - edac_printk(KERN_ERR, EDAC_MC, - "Error clearing SDRAM ECC count\n"); - return -ENODEV; - } - - if (regmap_update_bits(regmap, priv->ecc_cnt_rst_offset, - priv->ecc_cnt_rst_mask, 0)) { - edac_printk(KERN_ERR, EDAC_MC, - "Error clearing SDRAM ECC count\n"); - return -ENODEV; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - edac_printk(KERN_ERR, EDAC_MC, - "No irq %d in DT\n", irq); - return -ENODEV; - } - - layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; - layers[0].size = 1; - layers[0].is_virt_csrow = true; - layers[1].type = EDAC_MC_LAYER_CHANNEL; - layers[1].size = 1; - layers[1].is_virt_csrow = false; - mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, - sizeof(struct altr_sdram_mc_data)); - if (!mci) - return -ENOMEM; - - mci->pdev = &pdev->dev; - drvdata = mci->pvt_info; - drvdata->mc_vbase = regmap; - drvdata->data = priv; - platform_set_drvdata(pdev, mci); - - if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) { - edac_printk(KERN_ERR, EDAC_MC, - "Unable to get managed device resource\n"); - ret = -ENOMEM; - goto free; - } - - mci->mtype_cap = MEM_FLAG_DDR3; - mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED; - mci->edac_cap = EDAC_FLAG_SECDED; - mci->mod_name = EDAC_MOD_STR; - mci->ctl_name = dev_name(&pdev->dev); - mci->scrub_mode = SCRUB_SW_SRC; - mci->dev_name = dev_name(&pdev->dev); - - dimm = *mci->dimms; - dimm->nr_pages = ((mem_size - 1) >> PAGE_SHIFT) + 1; - dimm->grain = 8; - dimm->dtype = DEV_X8; - dimm->mtype = MEM_DDR3; - dimm->edac_mode = EDAC_SECDED; - - ret = edac_mc_add_mc(mci); - if (ret < 0) - goto err; - - ret = devm_request_irq(&pdev->dev, irq, altr_sdram_mc_err_handler, - IRQF_SHARED, dev_name(&pdev->dev), mci); - if (ret < 0) { - edac_mc_printk(mci, KERN_ERR, - "Unable to request irq %d\n", irq); - ret = -ENODEV; - goto err2; - } - - if (regmap_write(regmap, S10_SYSMGR_ECC_INTMASK_CLR_OFST, - S10_DDR0_IRQ_MASK)) { - edac_printk(KERN_ERR, EDAC_MC, - "Error clearing SDRAM ECC count\n"); - ret = -ENODEV; - goto err2; - } - - if (regmap_update_bits(drvdata->mc_vbase, priv->ecc_irq_en_offset, - priv->ecc_irq_en_mask, priv->ecc_irq_en_mask)) { - edac_mc_printk(mci, KERN_ERR, - "Error enabling SDRAM ECC IRQ\n"); - ret = -ENODEV; - goto err2; - } - - altr_sdr_mc_create_debugfs_nodes(mci); - - devres_close_group(&pdev->dev, NULL); - - return 0; - -err2: - edac_mc_del_mc(&pdev->dev); -err: - devres_release_group(&pdev->dev, NULL); -free: - edac_mc_free(mci); - edac_printk(KERN_ERR, EDAC_MC, - "EDAC Probe Failed; Error %d\n", ret); - - return ret; -} - -static int altr_s10_sdram_remove(struct platform_device *pdev) -{ - struct mem_ctl_info *mci = platform_get_drvdata(pdev); - - edac_mc_del_mc(&pdev->dev); - edac_mc_free(mci); - platform_set_drvdata(pdev, NULL); - - return 0; -} - /************** ***********/ /* @@ -804,20 +560,6 @@ static struct platform_driver altr_sdram_edac_driver = { module_platform_driver(altr_sdram_edac_driver); -static struct platform_driver altr_s10_sdram_edac_driver = { - .probe = altr_s10_sdram_probe, - .remove = altr_s10_sdram_remove, - .driver = { - .name = "altr_s10_sdram_edac", -#ifdef CONFIG_PM - .pm = &altr_sdram_pm_ops, -#endif - .of_match_table = altr_sdram_ctrl_of_match, - }, -}; - -module_platform_driver(altr_s10_sdram_edac_driver); - /************************* EDAC Parent Probe *************************/ static const struct of_device_id altr_edac_device_of_match[]; @@ -2163,7 +1905,7 @@ static int s10_edac_dberr_handler(struct notifier_block *this, &dberror); regmap_write(edac->ecc_mgr_map, S10_SYSMGR_UE_VAL_OFST, dberror); if (dberror & S10_DDR0_IRQ_MASK) { - regmap_read(edac->ecc_mgr_map, S10_DERRADDR_OFST, &err_addr); + regmap_read(edac->ecc_mgr_map, A10_DERRADDR_OFST, &err_addr); regmap_write(edac->ecc_mgr_map, S10_SYSMGR_UE_ADDR_OFST, err_addr); edac_printk(KERN_ERR, EDAC_MC, diff --git a/drivers/edac/altera_edac.h b/drivers/edac/altera_edac.h index d925c4cee01b..e9e3f9b61947 100644 --- a/drivers/edac/altera_edac.h +++ b/drivers/edac/altera_edac.h @@ -156,34 +156,6 @@ #define A10_INTMASK_CLR_OFST 0x10 #define A10_DDR0_IRQ_MASK BIT(17) -/************* Stratix10 Defines **************/ - -/* SDRAM Controller EccCtrl Register */ -#define S10_ECCCTRL1_OFST 0xF8011100 - -/* SDRAM Controller DRAM IRQ Register */ -#define S10_ERRINTEN_OFST 0xF8011110 - -/* SDRAM Interrupt Mode Register */ -#define S10_INTMODE_OFST 0xF801111C - -/* SDRAM Controller Error Status Register */ -#define S10_INTSTAT_OFST 0xF8011120 - -/* SDRAM Controller ECC Error Address Register */ -#define S10_DERRADDR_OFST 0xF801112C -#define S10_SERRADDR_OFST 0xF8011130 - -/* SDRAM Controller ECC Diagnostic Register */ -#define S10_DIAGINTTEST_OFST 0xF8011124 - -/* SDRAM Single Bit Error Count Compare Set Register */ -#define S10_SERRCNTREG_OFST 0xF801113C - -/* Sticky registers for Uncorrected Errors */ -#define S10_SYSMGR_UE_VAL_OFST 0xFFD12220 -#define S10_SYSMGR_UE_ADDR_OFST 0xFFD12224 - struct altr_sdram_prv_data { int ecc_ctrl_offset; int ecc_ctl_en_mask; @@ -319,12 +291,12 @@ struct altr_sdram_mc_data { /************* Stratix10 Defines **************/ /* Stratix10 ECC Manager Defines */ -#define S10_SYSMGR_ECC_INTMASK_VAL_OFST 0xFFD12090 -#define S10_SYSMGR_ECC_INTMASK_SET_OFST 0xFFD12094 -#define S10_SYSMGR_ECC_INTMASK_CLR_OFST 0xFFD12098 +#define S10_SYSMGR_ECC_INTMASK_CLR_OFST 0x98 +#define S10_SYSMGR_ECC_INTSTAT_DERR_OFST 0xA0 -#define S10_SYSMGR_ECC_INTSTAT_SERR_OFST 0xFFD1209C -#define S10_SYSMGR_ECC_INTSTAT_DERR_OFST 0xFFD120A0 +/* Sticky registers for Uncorrected Errors */ +#define S10_SYSMGR_UE_VAL_OFST 0x120 +#define S10_SYSMGR_UE_ADDR_OFST 0x124 #define S10_DDR0_IRQ_MASK BIT(16) -- 2.45.2