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[24.155.109.49]) by smtp.googlemail.com with ESMTPSA id y25sm1545755oto.27.2020.02.18.09.13.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Feb 2020 09:13:31 -0800 (PST) From: Rob Herring To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, soc@kernel.org, Andre Przywara , Robert Richter , Jon Loeliger , Alexander Graf , Matthias Brugger , Mark Langsdorf Cc: Alex Williamson , Borislav Petkov , Cornelia Huck , Daniel Lezcano , "David S. Miller" , devicetree@vger.kernel.org, Eric Auger , iommu@lists.linux-foundation.org, James Morse , Jens Axboe , Joerg Roedel , kvm@vger.kernel.org, linux-clk@vger.kernel.org, linux-edac@vger.kernel.org, linux-ide@vger.kernel.org, linux-pm@vger.kernel.org, Mauro Carvalho Chehab , netdev@vger.kernel.org, "Rafael J. Wysocki" , Robin Murphy , Stephen Boyd , Tony Luck , Viresh Kumar , Will Deacon Subject: [RFC PATCH 05/11] EDAC: Remove Calxeda drivers Date: Tue, 18 Feb 2020 11:13:15 -0600 Message-Id: <20200218171321.30990-6-robh@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200218171321.30990-1-robh@kernel.org> References: <20200218171321.30990-1-robh@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-edac-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org Cc: Borislav Petkov Cc: Mauro Carvalho Chehab Cc: Tony Luck Cc: James Morse Cc: Robert Richter Cc: linux-edac@vger.kernel.org Signed-off-by: Rob Herring --- Do not apply yet. MAINTAINERS | 6 - drivers/edac/Kconfig | 14 -- drivers/edac/Makefile | 3 - drivers/edac/highbank_l2_edac.c | 142 ----------------- drivers/edac/highbank_mc_edac.c | 272 -------------------------------- 5 files changed, 437 deletions(-) delete mode 100644 drivers/edac/highbank_l2_edac.c delete mode 100644 drivers/edac/highbank_mc_edac.c diff --git a/MAINTAINERS b/MAINTAINERS index a0d86490c2c6..4732bb268299 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5964,12 +5964,6 @@ M: Shravan Kumar Ramani S: Supported F: drivers/edac/bluefield_edac.c -EDAC-CALXEDA -M: Robert Richter -L: linux-edac@vger.kernel.org -S: Maintained -F: drivers/edac/highbank* - EDAC-CAVIUM OCTEON M: Ralf Baechle M: Robert Richter diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index b3c99bb5fe77..f3ff75e5ed9b 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -334,20 +334,6 @@ config EDAC_CPC925 a companion chip to the PowerPC 970 family of processors. -config EDAC_HIGHBANK_MC - tristate "Highbank Memory Controller" - depends on ARCH_HIGHBANK - help - Support for error detection and correction on the - Calxeda Highbank memory controller. - -config EDAC_HIGHBANK_L2 - tristate "Highbank L2 Cache" - depends on ARCH_HIGHBANK - help - Support for error detection and correction on the - Calxeda Highbank memory controller. - config EDAC_OCTEON_PC tristate "Cavium Octeon Primary Caches" depends on CPU_CAVIUM_OCTEON diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile index d77200c9680b..9a563db39bc3 100644 --- a/drivers/edac/Makefile +++ b/drivers/edac/Makefile @@ -69,9 +69,6 @@ obj-$(CONFIG_EDAC_PPC4XX) += ppc4xx_edac.o obj-$(CONFIG_EDAC_AMD8111) += amd8111_edac.o obj-$(CONFIG_EDAC_AMD8131) += amd8131_edac.o -obj-$(CONFIG_EDAC_HIGHBANK_MC) += highbank_mc_edac.o -obj-$(CONFIG_EDAC_HIGHBANK_L2) += highbank_l2_edac.o - obj-$(CONFIG_EDAC_OCTEON_PC) += octeon_edac-pc.o obj-$(CONFIG_EDAC_OCTEON_L2C) += octeon_edac-l2c.o obj-$(CONFIG_EDAC_OCTEON_LMC) += octeon_edac-lmc.o diff --git a/drivers/edac/highbank_l2_edac.c b/drivers/edac/highbank_l2_edac.c deleted file mode 100644 index c4549cec788b..000000000000 --- a/drivers/edac/highbank_l2_edac.c +++ /dev/null @@ -1,142 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright 2011-2012 Calxeda, Inc. - */ -#include -#include -#include -#include -#include -#include -#include - -#include "edac_module.h" - -#define SR_CLR_SB_ECC_INTR 0x0 -#define SR_CLR_DB_ECC_INTR 0x4 - -struct hb_l2_drvdata { - void __iomem *base; - int sb_irq; - int db_irq; -}; - -static irqreturn_t highbank_l2_err_handler(int irq, void *dev_id) -{ - struct edac_device_ctl_info *dci = dev_id; - struct hb_l2_drvdata *drvdata = dci->pvt_info; - - if (irq == drvdata->sb_irq) { - writel(1, drvdata->base + SR_CLR_SB_ECC_INTR); - edac_device_handle_ce(dci, 0, 0, dci->ctl_name); - } - if (irq == drvdata->db_irq) { - writel(1, drvdata->base + SR_CLR_DB_ECC_INTR); - edac_device_handle_ue(dci, 0, 0, dci->ctl_name); - } - - return IRQ_HANDLED; -} - -static const struct of_device_id hb_l2_err_of_match[] = { - { .compatible = "calxeda,hb-sregs-l2-ecc", }, - {}, -}; -MODULE_DEVICE_TABLE(of, hb_l2_err_of_match); - -static int highbank_l2_err_probe(struct platform_device *pdev) -{ - const struct of_device_id *id; - struct edac_device_ctl_info *dci; - struct hb_l2_drvdata *drvdata; - struct resource *r; - int res = 0; - - dci = edac_device_alloc_ctl_info(sizeof(*drvdata), "cpu", - 1, "L", 1, 2, NULL, 0, 0); - if (!dci) - return -ENOMEM; - - drvdata = dci->pvt_info; - dci->dev = &pdev->dev; - platform_set_drvdata(pdev, dci); - - if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) - return -ENOMEM; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - dev_err(&pdev->dev, "Unable to get mem resource\n"); - res = -ENODEV; - goto err; - } - - if (!devm_request_mem_region(&pdev->dev, r->start, - resource_size(r), dev_name(&pdev->dev))) { - dev_err(&pdev->dev, "Error while requesting mem region\n"); - res = -EBUSY; - goto err; - } - - drvdata->base = devm_ioremap(&pdev->dev, r->start, resource_size(r)); - if (!drvdata->base) { - dev_err(&pdev->dev, "Unable to map regs\n"); - res = -ENOMEM; - goto err; - } - - id = of_match_device(hb_l2_err_of_match, &pdev->dev); - dci->mod_name = pdev->dev.driver->name; - dci->ctl_name = id ? id->compatible : "unknown"; - dci->dev_name = dev_name(&pdev->dev); - - if (edac_device_add_device(dci)) - goto err; - - drvdata->db_irq = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, drvdata->db_irq, - highbank_l2_err_handler, - 0, dev_name(&pdev->dev), dci); - if (res < 0) - goto err2; - - drvdata->sb_irq = platform_get_irq(pdev, 1); - res = devm_request_irq(&pdev->dev, drvdata->sb_irq, - highbank_l2_err_handler, - 0, dev_name(&pdev->dev), dci); - if (res < 0) - goto err2; - - devres_close_group(&pdev->dev, NULL); - return 0; -err2: - edac_device_del_device(&pdev->dev); -err: - devres_release_group(&pdev->dev, NULL); - edac_device_free_ctl_info(dci); - return res; -} - -static int highbank_l2_err_remove(struct platform_device *pdev) -{ - struct edac_device_ctl_info *dci = platform_get_drvdata(pdev); - - edac_device_del_device(&pdev->dev); - edac_device_free_ctl_info(dci); - return 0; -} - -static struct platform_driver highbank_l2_edac_driver = { - .probe = highbank_l2_err_probe, - .remove = highbank_l2_err_remove, - .driver = { - .name = "hb_l2_edac", - .of_match_table = hb_l2_err_of_match, - }, -}; - -module_platform_driver(highbank_l2_edac_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Calxeda, Inc."); -MODULE_DESCRIPTION("EDAC Driver for Calxeda Highbank L2 Cache"); diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c deleted file mode 100644 index 61b76ec226af..000000000000 --- a/drivers/edac/highbank_mc_edac.c +++ /dev/null @@ -1,272 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright 2011-2012 Calxeda, Inc. - */ -#include -#include -#include -#include -#include -#include -#include -#include - -#include "edac_module.h" - -/* DDR Ctrlr Error Registers */ - -#define HB_DDR_ECC_ERR_BASE 0x128 -#define MW_DDR_ECC_ERR_BASE 0x1b4 - -#define HB_DDR_ECC_OPT 0x00 -#define HB_DDR_ECC_U_ERR_ADDR 0x08 -#define HB_DDR_ECC_U_ERR_STAT 0x0c -#define HB_DDR_ECC_U_ERR_DATAL 0x10 -#define HB_DDR_ECC_U_ERR_DATAH 0x14 -#define HB_DDR_ECC_C_ERR_ADDR 0x18 -#define HB_DDR_ECC_C_ERR_STAT 0x1c -#define HB_DDR_ECC_C_ERR_DATAL 0x20 -#define HB_DDR_ECC_C_ERR_DATAH 0x24 - -#define HB_DDR_ECC_OPT_MODE_MASK 0x3 -#define HB_DDR_ECC_OPT_FWC 0x100 -#define HB_DDR_ECC_OPT_XOR_SHIFT 16 - -/* DDR Ctrlr Interrupt Registers */ - -#define HB_DDR_ECC_INT_BASE 0x180 -#define MW_DDR_ECC_INT_BASE 0x218 - -#define HB_DDR_ECC_INT_STATUS 0x00 -#define HB_DDR_ECC_INT_ACK 0x04 - -#define HB_DDR_ECC_INT_STAT_CE 0x8 -#define HB_DDR_ECC_INT_STAT_DOUBLE_CE 0x10 -#define HB_DDR_ECC_INT_STAT_UE 0x20 -#define HB_DDR_ECC_INT_STAT_DOUBLE_UE 0x40 - -struct hb_mc_drvdata { - void __iomem *mc_err_base; - void __iomem *mc_int_base; -}; - -static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id) -{ - struct mem_ctl_info *mci = dev_id; - struct hb_mc_drvdata *drvdata = mci->pvt_info; - u32 status, err_addr; - - /* Read the interrupt status register */ - status = readl(drvdata->mc_int_base + HB_DDR_ECC_INT_STATUS); - - if (status & HB_DDR_ECC_INT_STAT_UE) { - err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_U_ERR_ADDR); - edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, - err_addr >> PAGE_SHIFT, - err_addr & ~PAGE_MASK, 0, - 0, 0, -1, - mci->ctl_name, ""); - } - if (status & HB_DDR_ECC_INT_STAT_CE) { - u32 syndrome = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_STAT); - syndrome = (syndrome >> 8) & 0xff; - err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_ADDR); - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, - err_addr >> PAGE_SHIFT, - err_addr & ~PAGE_MASK, syndrome, - 0, 0, -1, - mci->ctl_name, ""); - } - - /* clear the error, clears the interrupt */ - writel(status, drvdata->mc_int_base + HB_DDR_ECC_INT_ACK); - return IRQ_HANDLED; -} - -static void highbank_mc_err_inject(struct mem_ctl_info *mci, u8 synd) -{ - struct hb_mc_drvdata *pdata = mci->pvt_info; - u32 reg; - - reg = readl(pdata->mc_err_base + HB_DDR_ECC_OPT); - reg &= HB_DDR_ECC_OPT_MODE_MASK; - reg |= (synd << HB_DDR_ECC_OPT_XOR_SHIFT) | HB_DDR_ECC_OPT_FWC; - writel(reg, pdata->mc_err_base + HB_DDR_ECC_OPT); -} - -#define to_mci(k) container_of(k, struct mem_ctl_info, dev) - -static ssize_t highbank_mc_inject_ctrl(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct mem_ctl_info *mci = to_mci(dev); - u8 synd; - - if (kstrtou8(buf, 16, &synd)) - return -EINVAL; - - highbank_mc_err_inject(mci, synd); - - return count; -} - -static DEVICE_ATTR(inject_ctrl, S_IWUSR, NULL, highbank_mc_inject_ctrl); - -static struct attribute *highbank_dev_attrs[] = { - &dev_attr_inject_ctrl.attr, - NULL -}; - -ATTRIBUTE_GROUPS(highbank_dev); - -struct hb_mc_settings { - int err_offset; - int int_offset; -}; - -static struct hb_mc_settings hb_settings = { - .err_offset = HB_DDR_ECC_ERR_BASE, - .int_offset = HB_DDR_ECC_INT_BASE, -}; - -static struct hb_mc_settings mw_settings = { - .err_offset = MW_DDR_ECC_ERR_BASE, - .int_offset = MW_DDR_ECC_INT_BASE, -}; - -static const struct of_device_id hb_ddr_ctrl_of_match[] = { - { .compatible = "calxeda,hb-ddr-ctrl", .data = &hb_settings }, - { .compatible = "calxeda,ecx-2000-ddr-ctrl", .data = &mw_settings }, - {}, -}; -MODULE_DEVICE_TABLE(of, hb_ddr_ctrl_of_match); - -static int highbank_mc_probe(struct platform_device *pdev) -{ - const struct of_device_id *id; - const struct hb_mc_settings *settings; - struct edac_mc_layer layers[2]; - struct mem_ctl_info *mci; - struct hb_mc_drvdata *drvdata; - struct dimm_info *dimm; - struct resource *r; - void __iomem *base; - u32 control; - int irq; - int res = 0; - - id = of_match_device(hb_ddr_ctrl_of_match, &pdev->dev); - if (!id) - 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 hb_mc_drvdata)); - if (!mci) - return -ENOMEM; - - mci->pdev = &pdev->dev; - drvdata = mci->pvt_info; - platform_set_drvdata(pdev, mci); - - if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) - return -ENOMEM; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - dev_err(&pdev->dev, "Unable to get mem resource\n"); - res = -ENODEV; - goto err; - } - - if (!devm_request_mem_region(&pdev->dev, r->start, - resource_size(r), dev_name(&pdev->dev))) { - dev_err(&pdev->dev, "Error while requesting mem region\n"); - res = -EBUSY; - goto err; - } - - base = devm_ioremap(&pdev->dev, r->start, resource_size(r)); - if (!base) { - dev_err(&pdev->dev, "Unable to map regs\n"); - res = -ENOMEM; - goto err; - } - - settings = id->data; - drvdata->mc_err_base = base + settings->err_offset; - drvdata->mc_int_base = base + settings->int_offset; - - control = readl(drvdata->mc_err_base + HB_DDR_ECC_OPT) & 0x3; - if (!control || (control == 0x2)) { - dev_err(&pdev->dev, "No ECC present, or ECC disabled\n"); - res = -ENODEV; - goto err; - } - - 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 = pdev->dev.driver->name; - mci->ctl_name = id->compatible; - mci->dev_name = dev_name(&pdev->dev); - mci->scrub_mode = SCRUB_SW_SRC; - - /* Only a single 4GB DIMM is supported */ - dimm = *mci->dimms; - dimm->nr_pages = (~0UL >> PAGE_SHIFT) + 1; - dimm->grain = 8; - dimm->dtype = DEV_X8; - dimm->mtype = MEM_DDR3; - dimm->edac_mode = EDAC_SECDED; - - res = edac_mc_add_mc_with_groups(mci, highbank_dev_groups); - if (res < 0) - goto err; - - irq = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, irq, highbank_mc_err_handler, - 0, dev_name(&pdev->dev), mci); - if (res < 0) { - dev_err(&pdev->dev, "Unable to request irq %d\n", irq); - goto err2; - } - - devres_close_group(&pdev->dev, NULL); - return 0; -err2: - edac_mc_del_mc(&pdev->dev); -err: - devres_release_group(&pdev->dev, NULL); - edac_mc_free(mci); - return res; -} - -static int highbank_mc_remove(struct platform_device *pdev) -{ - struct mem_ctl_info *mci = platform_get_drvdata(pdev); - - edac_mc_del_mc(&pdev->dev); - edac_mc_free(mci); - return 0; -} - -static struct platform_driver highbank_mc_edac_driver = { - .probe = highbank_mc_probe, - .remove = highbank_mc_remove, - .driver = { - .name = "hb_mc_edac", - .of_match_table = hb_ddr_ctrl_of_match, - }, -}; - -module_platform_driver(highbank_mc_edac_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Calxeda, Inc."); -MODULE_DESCRIPTION("EDAC Driver for Calxeda Highbank"); -- 2.20.1