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![Borislav Petkov](/assets/img/avatar_default.png)
It is a write-only variable so get rid of it. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Robert Richter <rric@kernel.org> Acked-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Thor Thayer <thor.thayer@linux.intel.com> Acked-by: Tony Luck <tony.luck@intel.com> Cc: Mark Gross <mark.gross@intel.com> Cc: Tim Small <tim@buttersideup.com> Cc: Ranganathan Desikan <ravi@jetztechnologies.com> Cc: "Arvind R." <arvino55@gmail.com> Cc: Jason Baron <jbaron@akamai.com> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Daney <david.daney@cavium.com> Cc: Loc Ho <lho@apm.com> Cc: linux-edac@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org
2057 lines
60 KiB
C
2057 lines
60 KiB
C
/*
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* APM X-Gene SoC EDAC (error detection and correction)
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*
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* Copyright (c) 2015, Applied Micro Circuits Corporation
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* Author: Feng Kan <fkan@apm.com>
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* Loc Ho <lho@apm.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/ctype.h>
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#include <linux/edac.h>
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#include <linux/interrupt.h>
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#include <linux/mfd/syscon.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/regmap.h>
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#include "edac_module.h"
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#define EDAC_MOD_STR "xgene_edac"
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/* Global error configuration status registers (CSR) */
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#define PCPHPERRINTSTS 0x0000
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#define PCPHPERRINTMSK 0x0004
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#define MCU_CTL_ERR_MASK BIT(12)
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#define IOB_PA_ERR_MASK BIT(11)
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#define IOB_BA_ERR_MASK BIT(10)
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#define IOB_XGIC_ERR_MASK BIT(9)
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#define IOB_RB_ERR_MASK BIT(8)
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#define L3C_UNCORR_ERR_MASK BIT(5)
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#define MCU_UNCORR_ERR_MASK BIT(4)
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#define PMD3_MERR_MASK BIT(3)
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#define PMD2_MERR_MASK BIT(2)
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#define PMD1_MERR_MASK BIT(1)
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#define PMD0_MERR_MASK BIT(0)
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#define PCPLPERRINTSTS 0x0008
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#define PCPLPERRINTMSK 0x000C
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#define CSW_SWITCH_TRACE_ERR_MASK BIT(2)
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#define L3C_CORR_ERR_MASK BIT(1)
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#define MCU_CORR_ERR_MASK BIT(0)
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#define MEMERRINTSTS 0x0010
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#define MEMERRINTMSK 0x0014
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struct xgene_edac {
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struct device *dev;
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struct regmap *csw_map;
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struct regmap *mcba_map;
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struct regmap *mcbb_map;
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struct regmap *efuse_map;
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struct regmap *rb_map;
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void __iomem *pcp_csr;
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spinlock_t lock;
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struct dentry *dfs;
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struct list_head mcus;
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struct list_head pmds;
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struct list_head l3s;
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struct list_head socs;
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struct mutex mc_lock;
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int mc_active_mask;
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int mc_registered_mask;
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};
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static void xgene_edac_pcp_rd(struct xgene_edac *edac, u32 reg, u32 *val)
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{
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*val = readl(edac->pcp_csr + reg);
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}
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static void xgene_edac_pcp_clrbits(struct xgene_edac *edac, u32 reg,
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u32 bits_mask)
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{
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u32 val;
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spin_lock(&edac->lock);
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val = readl(edac->pcp_csr + reg);
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val &= ~bits_mask;
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writel(val, edac->pcp_csr + reg);
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spin_unlock(&edac->lock);
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}
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static void xgene_edac_pcp_setbits(struct xgene_edac *edac, u32 reg,
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u32 bits_mask)
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{
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u32 val;
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spin_lock(&edac->lock);
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val = readl(edac->pcp_csr + reg);
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val |= bits_mask;
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writel(val, edac->pcp_csr + reg);
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spin_unlock(&edac->lock);
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}
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/* Memory controller error CSR */
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#define MCU_MAX_RANK 8
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#define MCU_RANK_STRIDE 0x40
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#define MCUGECR 0x0110
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#define MCU_GECR_DEMANDUCINTREN_MASK BIT(0)
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#define MCU_GECR_BACKUCINTREN_MASK BIT(1)
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#define MCU_GECR_CINTREN_MASK BIT(2)
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#define MUC_GECR_MCUADDRERREN_MASK BIT(9)
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#define MCUGESR 0x0114
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#define MCU_GESR_ADDRNOMATCH_ERR_MASK BIT(7)
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#define MCU_GESR_ADDRMULTIMATCH_ERR_MASK BIT(6)
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#define MCU_GESR_PHYP_ERR_MASK BIT(3)
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#define MCUESRR0 0x0314
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#define MCU_ESRR_MULTUCERR_MASK BIT(3)
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#define MCU_ESRR_BACKUCERR_MASK BIT(2)
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#define MCU_ESRR_DEMANDUCERR_MASK BIT(1)
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#define MCU_ESRR_CERR_MASK BIT(0)
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#define MCUESRRA0 0x0318
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#define MCUEBLRR0 0x031c
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#define MCU_EBLRR_ERRBANK_RD(src) (((src) & 0x00000007) >> 0)
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#define MCUERCRR0 0x0320
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#define MCU_ERCRR_ERRROW_RD(src) (((src) & 0xFFFF0000) >> 16)
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#define MCU_ERCRR_ERRCOL_RD(src) ((src) & 0x00000FFF)
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#define MCUSBECNT0 0x0324
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#define MCU_SBECNT_COUNT(src) ((src) & 0xFFFF)
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#define CSW_CSWCR 0x0000
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#define CSW_CSWCR_DUALMCB_MASK BIT(0)
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#define MCBADDRMR 0x0000
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#define MCBADDRMR_MCU_INTLV_MODE_MASK BIT(3)
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#define MCBADDRMR_DUALMCU_MODE_MASK BIT(2)
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#define MCBADDRMR_MCB_INTLV_MODE_MASK BIT(1)
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#define MCBADDRMR_ADDRESS_MODE_MASK BIT(0)
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struct xgene_edac_mc_ctx {
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struct list_head next;
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char *name;
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struct mem_ctl_info *mci;
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struct xgene_edac *edac;
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void __iomem *mcu_csr;
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u32 mcu_id;
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};
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static ssize_t xgene_edac_mc_err_inject_write(struct file *file,
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const char __user *data,
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size_t count, loff_t *ppos)
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{
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struct mem_ctl_info *mci = file->private_data;
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struct xgene_edac_mc_ctx *ctx = mci->pvt_info;
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int i;
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for (i = 0; i < MCU_MAX_RANK; i++) {
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writel(MCU_ESRR_MULTUCERR_MASK | MCU_ESRR_BACKUCERR_MASK |
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MCU_ESRR_DEMANDUCERR_MASK | MCU_ESRR_CERR_MASK,
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ctx->mcu_csr + MCUESRRA0 + i * MCU_RANK_STRIDE);
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}
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return count;
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}
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static const struct file_operations xgene_edac_mc_debug_inject_fops = {
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.open = simple_open,
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.write = xgene_edac_mc_err_inject_write,
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.llseek = generic_file_llseek,
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};
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static void xgene_edac_mc_create_debugfs_node(struct mem_ctl_info *mci)
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{
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if (!IS_ENABLED(CONFIG_EDAC_DEBUG))
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return;
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if (!mci->debugfs)
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return;
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edac_debugfs_create_file("inject_ctrl", S_IWUSR, mci->debugfs, mci,
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&xgene_edac_mc_debug_inject_fops);
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}
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static void xgene_edac_mc_check(struct mem_ctl_info *mci)
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{
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struct xgene_edac_mc_ctx *ctx = mci->pvt_info;
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unsigned int pcp_hp_stat;
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unsigned int pcp_lp_stat;
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u32 reg;
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u32 rank;
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u32 bank;
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u32 count;
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u32 col_row;
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xgene_edac_pcp_rd(ctx->edac, PCPHPERRINTSTS, &pcp_hp_stat);
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xgene_edac_pcp_rd(ctx->edac, PCPLPERRINTSTS, &pcp_lp_stat);
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if (!((MCU_UNCORR_ERR_MASK & pcp_hp_stat) ||
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(MCU_CTL_ERR_MASK & pcp_hp_stat) ||
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(MCU_CORR_ERR_MASK & pcp_lp_stat)))
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return;
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for (rank = 0; rank < MCU_MAX_RANK; rank++) {
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reg = readl(ctx->mcu_csr + MCUESRR0 + rank * MCU_RANK_STRIDE);
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/* Detect uncorrectable memory error */
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if (reg & (MCU_ESRR_DEMANDUCERR_MASK |
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MCU_ESRR_BACKUCERR_MASK)) {
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/* Detected uncorrectable memory error */
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edac_mc_chipset_printk(mci, KERN_ERR, "X-Gene",
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"MCU uncorrectable error at rank %d\n", rank);
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edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
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1, 0, 0, 0, 0, 0, -1, mci->ctl_name, "");
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}
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/* Detect correctable memory error */
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if (reg & MCU_ESRR_CERR_MASK) {
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bank = readl(ctx->mcu_csr + MCUEBLRR0 +
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rank * MCU_RANK_STRIDE);
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col_row = readl(ctx->mcu_csr + MCUERCRR0 +
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rank * MCU_RANK_STRIDE);
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count = readl(ctx->mcu_csr + MCUSBECNT0 +
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rank * MCU_RANK_STRIDE);
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edac_mc_chipset_printk(mci, KERN_WARNING, "X-Gene",
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"MCU correctable error at rank %d bank %d column %d row %d count %d\n",
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rank, MCU_EBLRR_ERRBANK_RD(bank),
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MCU_ERCRR_ERRCOL_RD(col_row),
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MCU_ERCRR_ERRROW_RD(col_row),
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MCU_SBECNT_COUNT(count));
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edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
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1, 0, 0, 0, 0, 0, -1, mci->ctl_name, "");
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}
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/* Clear all error registers */
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writel(0x0, ctx->mcu_csr + MCUEBLRR0 + rank * MCU_RANK_STRIDE);
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writel(0x0, ctx->mcu_csr + MCUERCRR0 + rank * MCU_RANK_STRIDE);
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writel(0x0, ctx->mcu_csr + MCUSBECNT0 +
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rank * MCU_RANK_STRIDE);
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writel(reg, ctx->mcu_csr + MCUESRR0 + rank * MCU_RANK_STRIDE);
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}
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/* Detect memory controller error */
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reg = readl(ctx->mcu_csr + MCUGESR);
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if (reg) {
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if (reg & MCU_GESR_ADDRNOMATCH_ERR_MASK)
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edac_mc_chipset_printk(mci, KERN_WARNING, "X-Gene",
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"MCU address miss-match error\n");
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if (reg & MCU_GESR_ADDRMULTIMATCH_ERR_MASK)
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edac_mc_chipset_printk(mci, KERN_WARNING, "X-Gene",
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"MCU address multi-match error\n");
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writel(reg, ctx->mcu_csr + MCUGESR);
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}
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}
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static void xgene_edac_mc_irq_ctl(struct mem_ctl_info *mci, bool enable)
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{
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struct xgene_edac_mc_ctx *ctx = mci->pvt_info;
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unsigned int val;
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if (edac_op_state != EDAC_OPSTATE_INT)
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return;
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mutex_lock(&ctx->edac->mc_lock);
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/*
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* As there is only single bit for enable error and interrupt mask,
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* we must only enable top level interrupt after all MCUs are
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* registered. Otherwise, if there is an error and the corresponding
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* MCU has not registered, the interrupt will never get cleared. To
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* determine all MCU have registered, we will keep track of active
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* MCUs and registered MCUs.
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*/
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if (enable) {
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/* Set registered MCU bit */
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ctx->edac->mc_registered_mask |= 1 << ctx->mcu_id;
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/* Enable interrupt after all active MCU registered */
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if (ctx->edac->mc_registered_mask ==
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ctx->edac->mc_active_mask) {
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/* Enable memory controller top level interrupt */
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xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK,
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MCU_UNCORR_ERR_MASK |
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MCU_CTL_ERR_MASK);
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xgene_edac_pcp_clrbits(ctx->edac, PCPLPERRINTMSK,
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MCU_CORR_ERR_MASK);
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}
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/* Enable MCU interrupt and error reporting */
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val = readl(ctx->mcu_csr + MCUGECR);
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val |= MCU_GECR_DEMANDUCINTREN_MASK |
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MCU_GECR_BACKUCINTREN_MASK |
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MCU_GECR_CINTREN_MASK |
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MUC_GECR_MCUADDRERREN_MASK;
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writel(val, ctx->mcu_csr + MCUGECR);
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} else {
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/* Disable MCU interrupt */
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val = readl(ctx->mcu_csr + MCUGECR);
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val &= ~(MCU_GECR_DEMANDUCINTREN_MASK |
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MCU_GECR_BACKUCINTREN_MASK |
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MCU_GECR_CINTREN_MASK |
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MUC_GECR_MCUADDRERREN_MASK);
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writel(val, ctx->mcu_csr + MCUGECR);
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/* Disable memory controller top level interrupt */
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xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK,
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MCU_UNCORR_ERR_MASK | MCU_CTL_ERR_MASK);
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xgene_edac_pcp_setbits(ctx->edac, PCPLPERRINTMSK,
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MCU_CORR_ERR_MASK);
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/* Clear registered MCU bit */
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ctx->edac->mc_registered_mask &= ~(1 << ctx->mcu_id);
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}
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mutex_unlock(&ctx->edac->mc_lock);
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}
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static int xgene_edac_mc_is_active(struct xgene_edac_mc_ctx *ctx, int mc_idx)
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{
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unsigned int reg;
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u32 mcu_mask;
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if (regmap_read(ctx->edac->csw_map, CSW_CSWCR, ®))
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return 0;
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if (reg & CSW_CSWCR_DUALMCB_MASK) {
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/*
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* Dual MCB active - Determine if all 4 active or just MCU0
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* and MCU2 active
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*/
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if (regmap_read(ctx->edac->mcbb_map, MCBADDRMR, ®))
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return 0;
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mcu_mask = (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0xF : 0x5;
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} else {
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/*
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* Single MCB active - Determine if MCU0/MCU1 or just MCU0
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* active
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*/
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if (regmap_read(ctx->edac->mcba_map, MCBADDRMR, ®))
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return 0;
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mcu_mask = (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0x3 : 0x1;
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}
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/* Save active MC mask if hasn't set already */
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if (!ctx->edac->mc_active_mask)
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ctx->edac->mc_active_mask = mcu_mask;
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return (mcu_mask & (1 << mc_idx)) ? 1 : 0;
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}
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static int xgene_edac_mc_add(struct xgene_edac *edac, struct device_node *np)
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{
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struct mem_ctl_info *mci;
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struct edac_mc_layer layers[2];
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struct xgene_edac_mc_ctx tmp_ctx;
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struct xgene_edac_mc_ctx *ctx;
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struct resource res;
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int rc;
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memset(&tmp_ctx, 0, sizeof(tmp_ctx));
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tmp_ctx.edac = edac;
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if (!devres_open_group(edac->dev, xgene_edac_mc_add, GFP_KERNEL))
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return -ENOMEM;
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rc = of_address_to_resource(np, 0, &res);
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if (rc < 0) {
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dev_err(edac->dev, "no MCU resource address\n");
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goto err_group;
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}
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tmp_ctx.mcu_csr = devm_ioremap_resource(edac->dev, &res);
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if (IS_ERR(tmp_ctx.mcu_csr)) {
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dev_err(edac->dev, "unable to map MCU resource\n");
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rc = PTR_ERR(tmp_ctx.mcu_csr);
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goto err_group;
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}
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/* Ignore non-active MCU */
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if (of_property_read_u32(np, "memory-controller", &tmp_ctx.mcu_id)) {
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dev_err(edac->dev, "no memory-controller property\n");
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rc = -ENODEV;
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goto err_group;
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}
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if (!xgene_edac_mc_is_active(&tmp_ctx, tmp_ctx.mcu_id)) {
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rc = -ENODEV;
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goto err_group;
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}
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layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
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layers[0].size = 4;
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layers[0].is_virt_csrow = true;
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layers[1].type = EDAC_MC_LAYER_CHANNEL;
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layers[1].size = 2;
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layers[1].is_virt_csrow = false;
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mci = edac_mc_alloc(tmp_ctx.mcu_id, ARRAY_SIZE(layers), layers,
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sizeof(*ctx));
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if (!mci) {
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rc = -ENOMEM;
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goto err_group;
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}
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ctx = mci->pvt_info;
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*ctx = tmp_ctx; /* Copy over resource value */
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ctx->name = "xgene_edac_mc_err";
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ctx->mci = mci;
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mci->pdev = &mci->dev;
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mci->ctl_name = ctx->name;
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mci->dev_name = ctx->name;
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mci->mtype_cap = MEM_FLAG_RDDR | MEM_FLAG_RDDR2 | MEM_FLAG_RDDR3 |
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MEM_FLAG_DDR | MEM_FLAG_DDR2 | MEM_FLAG_DDR3;
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mci->edac_ctl_cap = EDAC_FLAG_SECDED;
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mci->edac_cap = EDAC_FLAG_SECDED;
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mci->mod_name = EDAC_MOD_STR;
|
|
mci->ctl_page_to_phys = NULL;
|
|
mci->scrub_cap = SCRUB_FLAG_HW_SRC;
|
|
mci->scrub_mode = SCRUB_HW_SRC;
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_POLL)
|
|
mci->edac_check = xgene_edac_mc_check;
|
|
|
|
if (edac_mc_add_mc(mci)) {
|
|
dev_err(edac->dev, "edac_mc_add_mc failed\n");
|
|
rc = -EINVAL;
|
|
goto err_free;
|
|
}
|
|
|
|
xgene_edac_mc_create_debugfs_node(mci);
|
|
|
|
list_add(&ctx->next, &edac->mcus);
|
|
|
|
xgene_edac_mc_irq_ctl(mci, true);
|
|
|
|
devres_remove_group(edac->dev, xgene_edac_mc_add);
|
|
|
|
dev_info(edac->dev, "X-Gene EDAC MC registered\n");
|
|
return 0;
|
|
|
|
err_free:
|
|
edac_mc_free(mci);
|
|
err_group:
|
|
devres_release_group(edac->dev, xgene_edac_mc_add);
|
|
return rc;
|
|
}
|
|
|
|
static int xgene_edac_mc_remove(struct xgene_edac_mc_ctx *mcu)
|
|
{
|
|
xgene_edac_mc_irq_ctl(mcu->mci, false);
|
|
edac_mc_del_mc(&mcu->mci->dev);
|
|
edac_mc_free(mcu->mci);
|
|
return 0;
|
|
}
|
|
|
|
/* CPU L1/L2 error CSR */
|
|
#define MAX_CPU_PER_PMD 2
|
|
#define CPU_CSR_STRIDE 0x00100000
|
|
#define CPU_L2C_PAGE 0x000D0000
|
|
#define CPU_MEMERR_L2C_PAGE 0x000E0000
|
|
#define CPU_MEMERR_CPU_PAGE 0x000F0000
|
|
|
|
#define MEMERR_CPU_ICFECR_PAGE_OFFSET 0x0000
|
|
#define MEMERR_CPU_ICFESR_PAGE_OFFSET 0x0004
|
|
#define MEMERR_CPU_ICFESR_ERRWAY_RD(src) (((src) & 0xFF000000) >> 24)
|
|
#define MEMERR_CPU_ICFESR_ERRINDEX_RD(src) (((src) & 0x003F0000) >> 16)
|
|
#define MEMERR_CPU_ICFESR_ERRINFO_RD(src) (((src) & 0x0000FF00) >> 8)
|
|
#define MEMERR_CPU_ICFESR_ERRTYPE_RD(src) (((src) & 0x00000070) >> 4)
|
|
#define MEMERR_CPU_ICFESR_MULTCERR_MASK BIT(2)
|
|
#define MEMERR_CPU_ICFESR_CERR_MASK BIT(0)
|
|
#define MEMERR_CPU_LSUESR_PAGE_OFFSET 0x000c
|
|
#define MEMERR_CPU_LSUESR_ERRWAY_RD(src) (((src) & 0xFF000000) >> 24)
|
|
#define MEMERR_CPU_LSUESR_ERRINDEX_RD(src) (((src) & 0x003F0000) >> 16)
|
|
#define MEMERR_CPU_LSUESR_ERRINFO_RD(src) (((src) & 0x0000FF00) >> 8)
|
|
#define MEMERR_CPU_LSUESR_ERRTYPE_RD(src) (((src) & 0x00000070) >> 4)
|
|
#define MEMERR_CPU_LSUESR_MULTCERR_MASK BIT(2)
|
|
#define MEMERR_CPU_LSUESR_CERR_MASK BIT(0)
|
|
#define MEMERR_CPU_LSUECR_PAGE_OFFSET 0x0008
|
|
#define MEMERR_CPU_MMUECR_PAGE_OFFSET 0x0010
|
|
#define MEMERR_CPU_MMUESR_PAGE_OFFSET 0x0014
|
|
#define MEMERR_CPU_MMUESR_ERRWAY_RD(src) (((src) & 0xFF000000) >> 24)
|
|
#define MEMERR_CPU_MMUESR_ERRINDEX_RD(src) (((src) & 0x007F0000) >> 16)
|
|
#define MEMERR_CPU_MMUESR_ERRINFO_RD(src) (((src) & 0x0000FF00) >> 8)
|
|
#define MEMERR_CPU_MMUESR_ERRREQSTR_LSU_MASK BIT(7)
|
|
#define MEMERR_CPU_MMUESR_ERRTYPE_RD(src) (((src) & 0x00000070) >> 4)
|
|
#define MEMERR_CPU_MMUESR_MULTCERR_MASK BIT(2)
|
|
#define MEMERR_CPU_MMUESR_CERR_MASK BIT(0)
|
|
#define MEMERR_CPU_ICFESRA_PAGE_OFFSET 0x0804
|
|
#define MEMERR_CPU_LSUESRA_PAGE_OFFSET 0x080c
|
|
#define MEMERR_CPU_MMUESRA_PAGE_OFFSET 0x0814
|
|
|
|
#define MEMERR_L2C_L2ECR_PAGE_OFFSET 0x0000
|
|
#define MEMERR_L2C_L2ESR_PAGE_OFFSET 0x0004
|
|
#define MEMERR_L2C_L2ESR_ERRSYN_RD(src) (((src) & 0xFF000000) >> 24)
|
|
#define MEMERR_L2C_L2ESR_ERRWAY_RD(src) (((src) & 0x00FC0000) >> 18)
|
|
#define MEMERR_L2C_L2ESR_ERRCPU_RD(src) (((src) & 0x00020000) >> 17)
|
|
#define MEMERR_L2C_L2ESR_ERRGROUP_RD(src) (((src) & 0x0000E000) >> 13)
|
|
#define MEMERR_L2C_L2ESR_ERRACTION_RD(src) (((src) & 0x00001C00) >> 10)
|
|
#define MEMERR_L2C_L2ESR_ERRTYPE_RD(src) (((src) & 0x00000300) >> 8)
|
|
#define MEMERR_L2C_L2ESR_MULTUCERR_MASK BIT(3)
|
|
#define MEMERR_L2C_L2ESR_MULTICERR_MASK BIT(2)
|
|
#define MEMERR_L2C_L2ESR_UCERR_MASK BIT(1)
|
|
#define MEMERR_L2C_L2ESR_ERR_MASK BIT(0)
|
|
#define MEMERR_L2C_L2EALR_PAGE_OFFSET 0x0008
|
|
#define CPUX_L2C_L2RTOCR_PAGE_OFFSET 0x0010
|
|
#define MEMERR_L2C_L2EAHR_PAGE_OFFSET 0x000c
|
|
#define CPUX_L2C_L2RTOSR_PAGE_OFFSET 0x0014
|
|
#define MEMERR_L2C_L2RTOSR_MULTERR_MASK BIT(1)
|
|
#define MEMERR_L2C_L2RTOSR_ERR_MASK BIT(0)
|
|
#define CPUX_L2C_L2RTOALR_PAGE_OFFSET 0x0018
|
|
#define CPUX_L2C_L2RTOAHR_PAGE_OFFSET 0x001c
|
|
#define MEMERR_L2C_L2ESRA_PAGE_OFFSET 0x0804
|
|
|
|
/*
|
|
* Processor Module Domain (PMD) context - Context for a pair of processsors.
|
|
* Each PMD consists of 2 CPUs and a shared L2 cache. Each CPU consists of
|
|
* its own L1 cache.
|
|
*/
|
|
struct xgene_edac_pmd_ctx {
|
|
struct list_head next;
|
|
struct device ddev;
|
|
char *name;
|
|
struct xgene_edac *edac;
|
|
struct edac_device_ctl_info *edac_dev;
|
|
void __iomem *pmd_csr;
|
|
u32 pmd;
|
|
int version;
|
|
};
|
|
|
|
static void xgene_edac_pmd_l1_check(struct edac_device_ctl_info *edac_dev,
|
|
int cpu_idx)
|
|
{
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
void __iomem *pg_f;
|
|
u32 val;
|
|
|
|
pg_f = ctx->pmd_csr + cpu_idx * CPU_CSR_STRIDE + CPU_MEMERR_CPU_PAGE;
|
|
|
|
val = readl(pg_f + MEMERR_CPU_ICFESR_PAGE_OFFSET);
|
|
if (!val)
|
|
goto chk_lsu;
|
|
dev_err(edac_dev->dev,
|
|
"CPU%d L1 memory error ICF 0x%08X Way 0x%02X Index 0x%02X Info 0x%02X\n",
|
|
ctx->pmd * MAX_CPU_PER_PMD + cpu_idx, val,
|
|
MEMERR_CPU_ICFESR_ERRWAY_RD(val),
|
|
MEMERR_CPU_ICFESR_ERRINDEX_RD(val),
|
|
MEMERR_CPU_ICFESR_ERRINFO_RD(val));
|
|
if (val & MEMERR_CPU_ICFESR_CERR_MASK)
|
|
dev_err(edac_dev->dev, "One or more correctable error\n");
|
|
if (val & MEMERR_CPU_ICFESR_MULTCERR_MASK)
|
|
dev_err(edac_dev->dev, "Multiple correctable error\n");
|
|
switch (MEMERR_CPU_ICFESR_ERRTYPE_RD(val)) {
|
|
case 1:
|
|
dev_err(edac_dev->dev, "L1 TLB multiple hit\n");
|
|
break;
|
|
case 2:
|
|
dev_err(edac_dev->dev, "Way select multiple hit\n");
|
|
break;
|
|
case 3:
|
|
dev_err(edac_dev->dev, "Physical tag parity error\n");
|
|
break;
|
|
case 4:
|
|
case 5:
|
|
dev_err(edac_dev->dev, "L1 data parity error\n");
|
|
break;
|
|
case 6:
|
|
dev_err(edac_dev->dev, "L1 pre-decode parity error\n");
|
|
break;
|
|
}
|
|
|
|
/* Clear any HW errors */
|
|
writel(val, pg_f + MEMERR_CPU_ICFESR_PAGE_OFFSET);
|
|
|
|
if (val & (MEMERR_CPU_ICFESR_CERR_MASK |
|
|
MEMERR_CPU_ICFESR_MULTCERR_MASK))
|
|
edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
|
|
chk_lsu:
|
|
val = readl(pg_f + MEMERR_CPU_LSUESR_PAGE_OFFSET);
|
|
if (!val)
|
|
goto chk_mmu;
|
|
dev_err(edac_dev->dev,
|
|
"CPU%d memory error LSU 0x%08X Way 0x%02X Index 0x%02X Info 0x%02X\n",
|
|
ctx->pmd * MAX_CPU_PER_PMD + cpu_idx, val,
|
|
MEMERR_CPU_LSUESR_ERRWAY_RD(val),
|
|
MEMERR_CPU_LSUESR_ERRINDEX_RD(val),
|
|
MEMERR_CPU_LSUESR_ERRINFO_RD(val));
|
|
if (val & MEMERR_CPU_LSUESR_CERR_MASK)
|
|
dev_err(edac_dev->dev, "One or more correctable error\n");
|
|
if (val & MEMERR_CPU_LSUESR_MULTCERR_MASK)
|
|
dev_err(edac_dev->dev, "Multiple correctable error\n");
|
|
switch (MEMERR_CPU_LSUESR_ERRTYPE_RD(val)) {
|
|
case 0:
|
|
dev_err(edac_dev->dev, "Load tag error\n");
|
|
break;
|
|
case 1:
|
|
dev_err(edac_dev->dev, "Load data error\n");
|
|
break;
|
|
case 2:
|
|
dev_err(edac_dev->dev, "WSL multihit error\n");
|
|
break;
|
|
case 3:
|
|
dev_err(edac_dev->dev, "Store tag error\n");
|
|
break;
|
|
case 4:
|
|
dev_err(edac_dev->dev,
|
|
"DTB multihit from load pipeline error\n");
|
|
break;
|
|
case 5:
|
|
dev_err(edac_dev->dev,
|
|
"DTB multihit from store pipeline error\n");
|
|
break;
|
|
}
|
|
|
|
/* Clear any HW errors */
|
|
writel(val, pg_f + MEMERR_CPU_LSUESR_PAGE_OFFSET);
|
|
|
|
if (val & (MEMERR_CPU_LSUESR_CERR_MASK |
|
|
MEMERR_CPU_LSUESR_MULTCERR_MASK))
|
|
edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
|
|
chk_mmu:
|
|
val = readl(pg_f + MEMERR_CPU_MMUESR_PAGE_OFFSET);
|
|
if (!val)
|
|
return;
|
|
dev_err(edac_dev->dev,
|
|
"CPU%d memory error MMU 0x%08X Way 0x%02X Index 0x%02X Info 0x%02X %s\n",
|
|
ctx->pmd * MAX_CPU_PER_PMD + cpu_idx, val,
|
|
MEMERR_CPU_MMUESR_ERRWAY_RD(val),
|
|
MEMERR_CPU_MMUESR_ERRINDEX_RD(val),
|
|
MEMERR_CPU_MMUESR_ERRINFO_RD(val),
|
|
val & MEMERR_CPU_MMUESR_ERRREQSTR_LSU_MASK ? "LSU" : "ICF");
|
|
if (val & MEMERR_CPU_MMUESR_CERR_MASK)
|
|
dev_err(edac_dev->dev, "One or more correctable error\n");
|
|
if (val & MEMERR_CPU_MMUESR_MULTCERR_MASK)
|
|
dev_err(edac_dev->dev, "Multiple correctable error\n");
|
|
switch (MEMERR_CPU_MMUESR_ERRTYPE_RD(val)) {
|
|
case 0:
|
|
dev_err(edac_dev->dev, "Stage 1 UTB hit error\n");
|
|
break;
|
|
case 1:
|
|
dev_err(edac_dev->dev, "Stage 1 UTB miss error\n");
|
|
break;
|
|
case 2:
|
|
dev_err(edac_dev->dev, "Stage 1 UTB allocate error\n");
|
|
break;
|
|
case 3:
|
|
dev_err(edac_dev->dev, "TMO operation single bank error\n");
|
|
break;
|
|
case 4:
|
|
dev_err(edac_dev->dev, "Stage 2 UTB error\n");
|
|
break;
|
|
case 5:
|
|
dev_err(edac_dev->dev, "Stage 2 UTB miss error\n");
|
|
break;
|
|
case 6:
|
|
dev_err(edac_dev->dev, "Stage 2 UTB allocate error\n");
|
|
break;
|
|
case 7:
|
|
dev_err(edac_dev->dev, "TMO operation multiple bank error\n");
|
|
break;
|
|
}
|
|
|
|
/* Clear any HW errors */
|
|
writel(val, pg_f + MEMERR_CPU_MMUESR_PAGE_OFFSET);
|
|
|
|
edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
}
|
|
|
|
static void xgene_edac_pmd_l2_check(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
void __iomem *pg_d;
|
|
void __iomem *pg_e;
|
|
u32 val_hi;
|
|
u32 val_lo;
|
|
u32 val;
|
|
|
|
/* Check L2 */
|
|
pg_e = ctx->pmd_csr + CPU_MEMERR_L2C_PAGE;
|
|
val = readl(pg_e + MEMERR_L2C_L2ESR_PAGE_OFFSET);
|
|
if (!val)
|
|
goto chk_l2c;
|
|
val_lo = readl(pg_e + MEMERR_L2C_L2EALR_PAGE_OFFSET);
|
|
val_hi = readl(pg_e + MEMERR_L2C_L2EAHR_PAGE_OFFSET);
|
|
dev_err(edac_dev->dev,
|
|
"PMD%d memory error L2C L2ESR 0x%08X @ 0x%08X.%08X\n",
|
|
ctx->pmd, val, val_hi, val_lo);
|
|
dev_err(edac_dev->dev,
|
|
"ErrSyndrome 0x%02X ErrWay 0x%02X ErrCpu %d ErrGroup 0x%02X ErrAction 0x%02X\n",
|
|
MEMERR_L2C_L2ESR_ERRSYN_RD(val),
|
|
MEMERR_L2C_L2ESR_ERRWAY_RD(val),
|
|
MEMERR_L2C_L2ESR_ERRCPU_RD(val),
|
|
MEMERR_L2C_L2ESR_ERRGROUP_RD(val),
|
|
MEMERR_L2C_L2ESR_ERRACTION_RD(val));
|
|
|
|
if (val & MEMERR_L2C_L2ESR_ERR_MASK)
|
|
dev_err(edac_dev->dev, "One or more correctable error\n");
|
|
if (val & MEMERR_L2C_L2ESR_MULTICERR_MASK)
|
|
dev_err(edac_dev->dev, "Multiple correctable error\n");
|
|
if (val & MEMERR_L2C_L2ESR_UCERR_MASK)
|
|
dev_err(edac_dev->dev, "One or more uncorrectable error\n");
|
|
if (val & MEMERR_L2C_L2ESR_MULTUCERR_MASK)
|
|
dev_err(edac_dev->dev, "Multiple uncorrectable error\n");
|
|
|
|
switch (MEMERR_L2C_L2ESR_ERRTYPE_RD(val)) {
|
|
case 0:
|
|
dev_err(edac_dev->dev, "Outbound SDB parity error\n");
|
|
break;
|
|
case 1:
|
|
dev_err(edac_dev->dev, "Inbound SDB parity error\n");
|
|
break;
|
|
case 2:
|
|
dev_err(edac_dev->dev, "Tag ECC error\n");
|
|
break;
|
|
case 3:
|
|
dev_err(edac_dev->dev, "Data ECC error\n");
|
|
break;
|
|
}
|
|
|
|
/* Clear any HW errors */
|
|
writel(val, pg_e + MEMERR_L2C_L2ESR_PAGE_OFFSET);
|
|
|
|
if (val & (MEMERR_L2C_L2ESR_ERR_MASK |
|
|
MEMERR_L2C_L2ESR_MULTICERR_MASK))
|
|
edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
if (val & (MEMERR_L2C_L2ESR_UCERR_MASK |
|
|
MEMERR_L2C_L2ESR_MULTUCERR_MASK))
|
|
edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
|
|
chk_l2c:
|
|
/* Check if any memory request timed out on L2 cache */
|
|
pg_d = ctx->pmd_csr + CPU_L2C_PAGE;
|
|
val = readl(pg_d + CPUX_L2C_L2RTOSR_PAGE_OFFSET);
|
|
if (val) {
|
|
val_lo = readl(pg_d + CPUX_L2C_L2RTOALR_PAGE_OFFSET);
|
|
val_hi = readl(pg_d + CPUX_L2C_L2RTOAHR_PAGE_OFFSET);
|
|
dev_err(edac_dev->dev,
|
|
"PMD%d L2C error L2C RTOSR 0x%08X @ 0x%08X.%08X\n",
|
|
ctx->pmd, val, val_hi, val_lo);
|
|
writel(val, pg_d + CPUX_L2C_L2RTOSR_PAGE_OFFSET);
|
|
}
|
|
}
|
|
|
|
static void xgene_edac_pmd_check(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
unsigned int pcp_hp_stat;
|
|
int i;
|
|
|
|
xgene_edac_pcp_rd(ctx->edac, PCPHPERRINTSTS, &pcp_hp_stat);
|
|
if (!((PMD0_MERR_MASK << ctx->pmd) & pcp_hp_stat))
|
|
return;
|
|
|
|
/* Check CPU L1 error */
|
|
for (i = 0; i < MAX_CPU_PER_PMD; i++)
|
|
xgene_edac_pmd_l1_check(edac_dev, i);
|
|
|
|
/* Check CPU L2 error */
|
|
xgene_edac_pmd_l2_check(edac_dev);
|
|
}
|
|
|
|
static void xgene_edac_pmd_cpu_hw_cfg(struct edac_device_ctl_info *edac_dev,
|
|
int cpu)
|
|
{
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
void __iomem *pg_f = ctx->pmd_csr + cpu * CPU_CSR_STRIDE +
|
|
CPU_MEMERR_CPU_PAGE;
|
|
|
|
/*
|
|
* Enable CPU memory error:
|
|
* MEMERR_CPU_ICFESRA, MEMERR_CPU_LSUESRA, and MEMERR_CPU_MMUESRA
|
|
*/
|
|
writel(0x00000301, pg_f + MEMERR_CPU_ICFECR_PAGE_OFFSET);
|
|
writel(0x00000301, pg_f + MEMERR_CPU_LSUECR_PAGE_OFFSET);
|
|
writel(0x00000101, pg_f + MEMERR_CPU_MMUECR_PAGE_OFFSET);
|
|
}
|
|
|
|
static void xgene_edac_pmd_hw_cfg(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
void __iomem *pg_d = ctx->pmd_csr + CPU_L2C_PAGE;
|
|
void __iomem *pg_e = ctx->pmd_csr + CPU_MEMERR_L2C_PAGE;
|
|
|
|
/* Enable PMD memory error - MEMERR_L2C_L2ECR and L2C_L2RTOCR */
|
|
writel(0x00000703, pg_e + MEMERR_L2C_L2ECR_PAGE_OFFSET);
|
|
/* Configure L2C HW request time out feature if supported */
|
|
if (ctx->version > 1)
|
|
writel(0x00000119, pg_d + CPUX_L2C_L2RTOCR_PAGE_OFFSET);
|
|
}
|
|
|
|
static void xgene_edac_pmd_hw_ctl(struct edac_device_ctl_info *edac_dev,
|
|
bool enable)
|
|
{
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
int i;
|
|
|
|
/* Enable PMD error interrupt */
|
|
if (edac_dev->op_state == OP_RUNNING_INTERRUPT) {
|
|
if (enable)
|
|
xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK,
|
|
PMD0_MERR_MASK << ctx->pmd);
|
|
else
|
|
xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK,
|
|
PMD0_MERR_MASK << ctx->pmd);
|
|
}
|
|
|
|
if (enable) {
|
|
xgene_edac_pmd_hw_cfg(edac_dev);
|
|
|
|
/* Two CPUs per a PMD */
|
|
for (i = 0; i < MAX_CPU_PER_PMD; i++)
|
|
xgene_edac_pmd_cpu_hw_cfg(edac_dev, i);
|
|
}
|
|
}
|
|
|
|
static ssize_t xgene_edac_pmd_l1_inject_ctrl_write(struct file *file,
|
|
const char __user *data,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev = file->private_data;
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
void __iomem *cpux_pg_f;
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_CPU_PER_PMD; i++) {
|
|
cpux_pg_f = ctx->pmd_csr + i * CPU_CSR_STRIDE +
|
|
CPU_MEMERR_CPU_PAGE;
|
|
|
|
writel(MEMERR_CPU_ICFESR_MULTCERR_MASK |
|
|
MEMERR_CPU_ICFESR_CERR_MASK,
|
|
cpux_pg_f + MEMERR_CPU_ICFESRA_PAGE_OFFSET);
|
|
writel(MEMERR_CPU_LSUESR_MULTCERR_MASK |
|
|
MEMERR_CPU_LSUESR_CERR_MASK,
|
|
cpux_pg_f + MEMERR_CPU_LSUESRA_PAGE_OFFSET);
|
|
writel(MEMERR_CPU_MMUESR_MULTCERR_MASK |
|
|
MEMERR_CPU_MMUESR_CERR_MASK,
|
|
cpux_pg_f + MEMERR_CPU_MMUESRA_PAGE_OFFSET);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static ssize_t xgene_edac_pmd_l2_inject_ctrl_write(struct file *file,
|
|
const char __user *data,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev = file->private_data;
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
void __iomem *pg_e = ctx->pmd_csr + CPU_MEMERR_L2C_PAGE;
|
|
|
|
writel(MEMERR_L2C_L2ESR_MULTUCERR_MASK |
|
|
MEMERR_L2C_L2ESR_MULTICERR_MASK |
|
|
MEMERR_L2C_L2ESR_UCERR_MASK |
|
|
MEMERR_L2C_L2ESR_ERR_MASK,
|
|
pg_e + MEMERR_L2C_L2ESRA_PAGE_OFFSET);
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations xgene_edac_pmd_debug_inject_fops[] = {
|
|
{
|
|
.open = simple_open,
|
|
.write = xgene_edac_pmd_l1_inject_ctrl_write,
|
|
.llseek = generic_file_llseek, },
|
|
{
|
|
.open = simple_open,
|
|
.write = xgene_edac_pmd_l2_inject_ctrl_write,
|
|
.llseek = generic_file_llseek, },
|
|
{ }
|
|
};
|
|
|
|
static void
|
|
xgene_edac_pmd_create_debugfs_nodes(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_pmd_ctx *ctx = edac_dev->pvt_info;
|
|
struct dentry *dbgfs_dir;
|
|
char name[10];
|
|
|
|
if (!IS_ENABLED(CONFIG_EDAC_DEBUG) || !ctx->edac->dfs)
|
|
return;
|
|
|
|
snprintf(name, sizeof(name), "PMD%d", ctx->pmd);
|
|
dbgfs_dir = edac_debugfs_create_dir_at(name, ctx->edac->dfs);
|
|
if (!dbgfs_dir)
|
|
return;
|
|
|
|
edac_debugfs_create_file("l1_inject_ctrl", S_IWUSR, dbgfs_dir, edac_dev,
|
|
&xgene_edac_pmd_debug_inject_fops[0]);
|
|
edac_debugfs_create_file("l2_inject_ctrl", S_IWUSR, dbgfs_dir, edac_dev,
|
|
&xgene_edac_pmd_debug_inject_fops[1]);
|
|
}
|
|
|
|
static int xgene_edac_pmd_available(u32 efuse, int pmd)
|
|
{
|
|
return (efuse & (1 << pmd)) ? 0 : 1;
|
|
}
|
|
|
|
static int xgene_edac_pmd_add(struct xgene_edac *edac, struct device_node *np,
|
|
int version)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev;
|
|
struct xgene_edac_pmd_ctx *ctx;
|
|
struct resource res;
|
|
char edac_name[10];
|
|
u32 pmd;
|
|
int rc;
|
|
u32 val;
|
|
|
|
if (!devres_open_group(edac->dev, xgene_edac_pmd_add, GFP_KERNEL))
|
|
return -ENOMEM;
|
|
|
|
/* Determine if this PMD is disabled */
|
|
if (of_property_read_u32(np, "pmd-controller", &pmd)) {
|
|
dev_err(edac->dev, "no pmd-controller property\n");
|
|
rc = -ENODEV;
|
|
goto err_group;
|
|
}
|
|
rc = regmap_read(edac->efuse_map, 0, &val);
|
|
if (rc)
|
|
goto err_group;
|
|
if (!xgene_edac_pmd_available(val, pmd)) {
|
|
rc = -ENODEV;
|
|
goto err_group;
|
|
}
|
|
|
|
snprintf(edac_name, sizeof(edac_name), "l2c%d", pmd);
|
|
edac_dev = edac_device_alloc_ctl_info(sizeof(*ctx),
|
|
edac_name, 1, "l2c", 1, 2, NULL,
|
|
0, edac_device_alloc_index());
|
|
if (!edac_dev) {
|
|
rc = -ENOMEM;
|
|
goto err_group;
|
|
}
|
|
|
|
ctx = edac_dev->pvt_info;
|
|
ctx->name = "xgene_pmd_err";
|
|
ctx->pmd = pmd;
|
|
ctx->edac = edac;
|
|
ctx->edac_dev = edac_dev;
|
|
ctx->ddev = *edac->dev;
|
|
ctx->version = version;
|
|
edac_dev->dev = &ctx->ddev;
|
|
edac_dev->ctl_name = ctx->name;
|
|
edac_dev->dev_name = ctx->name;
|
|
edac_dev->mod_name = EDAC_MOD_STR;
|
|
|
|
rc = of_address_to_resource(np, 0, &res);
|
|
if (rc < 0) {
|
|
dev_err(edac->dev, "no PMD resource address\n");
|
|
goto err_free;
|
|
}
|
|
ctx->pmd_csr = devm_ioremap_resource(edac->dev, &res);
|
|
if (IS_ERR(ctx->pmd_csr)) {
|
|
dev_err(edac->dev,
|
|
"devm_ioremap_resource failed for PMD resource address\n");
|
|
rc = PTR_ERR(ctx->pmd_csr);
|
|
goto err_free;
|
|
}
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_POLL)
|
|
edac_dev->edac_check = xgene_edac_pmd_check;
|
|
|
|
xgene_edac_pmd_create_debugfs_nodes(edac_dev);
|
|
|
|
rc = edac_device_add_device(edac_dev);
|
|
if (rc > 0) {
|
|
dev_err(edac->dev, "edac_device_add_device failed\n");
|
|
rc = -ENOMEM;
|
|
goto err_free;
|
|
}
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_INT)
|
|
edac_dev->op_state = OP_RUNNING_INTERRUPT;
|
|
|
|
list_add(&ctx->next, &edac->pmds);
|
|
|
|
xgene_edac_pmd_hw_ctl(edac_dev, 1);
|
|
|
|
devres_remove_group(edac->dev, xgene_edac_pmd_add);
|
|
|
|
dev_info(edac->dev, "X-Gene EDAC PMD%d registered\n", ctx->pmd);
|
|
return 0;
|
|
|
|
err_free:
|
|
edac_device_free_ctl_info(edac_dev);
|
|
err_group:
|
|
devres_release_group(edac->dev, xgene_edac_pmd_add);
|
|
return rc;
|
|
}
|
|
|
|
static int xgene_edac_pmd_remove(struct xgene_edac_pmd_ctx *pmd)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev = pmd->edac_dev;
|
|
|
|
xgene_edac_pmd_hw_ctl(edac_dev, 0);
|
|
edac_device_del_device(edac_dev->dev);
|
|
edac_device_free_ctl_info(edac_dev);
|
|
return 0;
|
|
}
|
|
|
|
/* L3 Error device */
|
|
#define L3C_ESR (0x0A * 4)
|
|
#define L3C_ESR_DATATAG_MASK BIT(9)
|
|
#define L3C_ESR_MULTIHIT_MASK BIT(8)
|
|
#define L3C_ESR_UCEVICT_MASK BIT(6)
|
|
#define L3C_ESR_MULTIUCERR_MASK BIT(5)
|
|
#define L3C_ESR_MULTICERR_MASK BIT(4)
|
|
#define L3C_ESR_UCERR_MASK BIT(3)
|
|
#define L3C_ESR_CERR_MASK BIT(2)
|
|
#define L3C_ESR_UCERRINTR_MASK BIT(1)
|
|
#define L3C_ESR_CERRINTR_MASK BIT(0)
|
|
#define L3C_ECR (0x0B * 4)
|
|
#define L3C_ECR_UCINTREN BIT(3)
|
|
#define L3C_ECR_CINTREN BIT(2)
|
|
#define L3C_UCERREN BIT(1)
|
|
#define L3C_CERREN BIT(0)
|
|
#define L3C_ELR (0x0C * 4)
|
|
#define L3C_ELR_ERRSYN(src) ((src & 0xFF800000) >> 23)
|
|
#define L3C_ELR_ERRWAY(src) ((src & 0x007E0000) >> 17)
|
|
#define L3C_ELR_AGENTID(src) ((src & 0x0001E000) >> 13)
|
|
#define L3C_ELR_ERRGRP(src) ((src & 0x00000F00) >> 8)
|
|
#define L3C_ELR_OPTYPE(src) ((src & 0x000000F0) >> 4)
|
|
#define L3C_ELR_PADDRHIGH(src) (src & 0x0000000F)
|
|
#define L3C_AELR (0x0D * 4)
|
|
#define L3C_BELR (0x0E * 4)
|
|
#define L3C_BELR_BANK(src) (src & 0x0000000F)
|
|
|
|
struct xgene_edac_dev_ctx {
|
|
struct list_head next;
|
|
struct device ddev;
|
|
char *name;
|
|
struct xgene_edac *edac;
|
|
struct edac_device_ctl_info *edac_dev;
|
|
int edac_idx;
|
|
void __iomem *dev_csr;
|
|
int version;
|
|
};
|
|
|
|
/*
|
|
* Version 1 of the L3 controller has broken single bit correctable logic for
|
|
* certain error syndromes. Log them as uncorrectable in that case.
|
|
*/
|
|
static bool xgene_edac_l3_promote_to_uc_err(u32 l3cesr, u32 l3celr)
|
|
{
|
|
if (l3cesr & L3C_ESR_DATATAG_MASK) {
|
|
switch (L3C_ELR_ERRSYN(l3celr)) {
|
|
case 0x13C:
|
|
case 0x0B4:
|
|
case 0x007:
|
|
case 0x00D:
|
|
case 0x00E:
|
|
case 0x019:
|
|
case 0x01A:
|
|
case 0x01C:
|
|
case 0x04E:
|
|
case 0x041:
|
|
return true;
|
|
}
|
|
} else if (L3C_ELR_ERRWAY(l3celr) == 9)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static void xgene_edac_l3_check(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
u32 l3cesr;
|
|
u32 l3celr;
|
|
u32 l3caelr;
|
|
u32 l3cbelr;
|
|
|
|
l3cesr = readl(ctx->dev_csr + L3C_ESR);
|
|
if (!(l3cesr & (L3C_ESR_UCERR_MASK | L3C_ESR_CERR_MASK)))
|
|
return;
|
|
|
|
if (l3cesr & L3C_ESR_UCERR_MASK)
|
|
dev_err(edac_dev->dev, "L3C uncorrectable error\n");
|
|
if (l3cesr & L3C_ESR_CERR_MASK)
|
|
dev_warn(edac_dev->dev, "L3C correctable error\n");
|
|
|
|
l3celr = readl(ctx->dev_csr + L3C_ELR);
|
|
l3caelr = readl(ctx->dev_csr + L3C_AELR);
|
|
l3cbelr = readl(ctx->dev_csr + L3C_BELR);
|
|
if (l3cesr & L3C_ESR_MULTIHIT_MASK)
|
|
dev_err(edac_dev->dev, "L3C multiple hit error\n");
|
|
if (l3cesr & L3C_ESR_UCEVICT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"L3C dropped eviction of line with error\n");
|
|
if (l3cesr & L3C_ESR_MULTIUCERR_MASK)
|
|
dev_err(edac_dev->dev, "L3C multiple uncorrectable error\n");
|
|
if (l3cesr & L3C_ESR_DATATAG_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"L3C data error syndrome 0x%X group 0x%X\n",
|
|
L3C_ELR_ERRSYN(l3celr), L3C_ELR_ERRGRP(l3celr));
|
|
else
|
|
dev_err(edac_dev->dev,
|
|
"L3C tag error syndrome 0x%X Way of Tag 0x%X Agent ID 0x%X Operation type 0x%X\n",
|
|
L3C_ELR_ERRSYN(l3celr), L3C_ELR_ERRWAY(l3celr),
|
|
L3C_ELR_AGENTID(l3celr), L3C_ELR_OPTYPE(l3celr));
|
|
/*
|
|
* NOTE: Address [41:38] in L3C_ELR_PADDRHIGH(l3celr).
|
|
* Address [37:6] in l3caelr. Lower 6 bits are zero.
|
|
*/
|
|
dev_err(edac_dev->dev, "L3C error address 0x%08X.%08X bank %d\n",
|
|
L3C_ELR_PADDRHIGH(l3celr) << 6 | (l3caelr >> 26),
|
|
(l3caelr & 0x3FFFFFFF) << 6, L3C_BELR_BANK(l3cbelr));
|
|
dev_err(edac_dev->dev,
|
|
"L3C error status register value 0x%X\n", l3cesr);
|
|
|
|
/* Clear L3C error interrupt */
|
|
writel(0, ctx->dev_csr + L3C_ESR);
|
|
|
|
if (ctx->version <= 1 &&
|
|
xgene_edac_l3_promote_to_uc_err(l3cesr, l3celr)) {
|
|
edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
return;
|
|
}
|
|
if (l3cesr & L3C_ESR_CERR_MASK)
|
|
edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
if (l3cesr & L3C_ESR_UCERR_MASK)
|
|
edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
}
|
|
|
|
static void xgene_edac_l3_hw_init(struct edac_device_ctl_info *edac_dev,
|
|
bool enable)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
u32 val;
|
|
|
|
val = readl(ctx->dev_csr + L3C_ECR);
|
|
val |= L3C_UCERREN | L3C_CERREN;
|
|
/* On disable, we just disable interrupt but keep error enabled */
|
|
if (edac_dev->op_state == OP_RUNNING_INTERRUPT) {
|
|
if (enable)
|
|
val |= L3C_ECR_UCINTREN | L3C_ECR_CINTREN;
|
|
else
|
|
val &= ~(L3C_ECR_UCINTREN | L3C_ECR_CINTREN);
|
|
}
|
|
writel(val, ctx->dev_csr + L3C_ECR);
|
|
|
|
if (edac_dev->op_state == OP_RUNNING_INTERRUPT) {
|
|
/* Enable/disable L3 error top level interrupt */
|
|
if (enable) {
|
|
xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK,
|
|
L3C_UNCORR_ERR_MASK);
|
|
xgene_edac_pcp_clrbits(ctx->edac, PCPLPERRINTMSK,
|
|
L3C_CORR_ERR_MASK);
|
|
} else {
|
|
xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK,
|
|
L3C_UNCORR_ERR_MASK);
|
|
xgene_edac_pcp_setbits(ctx->edac, PCPLPERRINTMSK,
|
|
L3C_CORR_ERR_MASK);
|
|
}
|
|
}
|
|
}
|
|
|
|
static ssize_t xgene_edac_l3_inject_ctrl_write(struct file *file,
|
|
const char __user *data,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev = file->private_data;
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
|
|
/* Generate all errors */
|
|
writel(0xFFFFFFFF, ctx->dev_csr + L3C_ESR);
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations xgene_edac_l3_debug_inject_fops = {
|
|
.open = simple_open,
|
|
.write = xgene_edac_l3_inject_ctrl_write,
|
|
.llseek = generic_file_llseek
|
|
};
|
|
|
|
static void
|
|
xgene_edac_l3_create_debugfs_nodes(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
struct dentry *dbgfs_dir;
|
|
char name[10];
|
|
|
|
if (!IS_ENABLED(CONFIG_EDAC_DEBUG) || !ctx->edac->dfs)
|
|
return;
|
|
|
|
snprintf(name, sizeof(name), "l3c%d", ctx->edac_idx);
|
|
dbgfs_dir = edac_debugfs_create_dir_at(name, ctx->edac->dfs);
|
|
if (!dbgfs_dir)
|
|
return;
|
|
|
|
debugfs_create_file("l3_inject_ctrl", S_IWUSR, dbgfs_dir, edac_dev,
|
|
&xgene_edac_l3_debug_inject_fops);
|
|
}
|
|
|
|
static int xgene_edac_l3_add(struct xgene_edac *edac, struct device_node *np,
|
|
int version)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev;
|
|
struct xgene_edac_dev_ctx *ctx;
|
|
struct resource res;
|
|
void __iomem *dev_csr;
|
|
int edac_idx;
|
|
int rc = 0;
|
|
|
|
if (!devres_open_group(edac->dev, xgene_edac_l3_add, GFP_KERNEL))
|
|
return -ENOMEM;
|
|
|
|
rc = of_address_to_resource(np, 0, &res);
|
|
if (rc < 0) {
|
|
dev_err(edac->dev, "no L3 resource address\n");
|
|
goto err_release_group;
|
|
}
|
|
dev_csr = devm_ioremap_resource(edac->dev, &res);
|
|
if (IS_ERR(dev_csr)) {
|
|
dev_err(edac->dev,
|
|
"devm_ioremap_resource failed for L3 resource address\n");
|
|
rc = PTR_ERR(dev_csr);
|
|
goto err_release_group;
|
|
}
|
|
|
|
edac_idx = edac_device_alloc_index();
|
|
edac_dev = edac_device_alloc_ctl_info(sizeof(*ctx),
|
|
"l3c", 1, "l3c", 1, 0, NULL, 0,
|
|
edac_idx);
|
|
if (!edac_dev) {
|
|
rc = -ENOMEM;
|
|
goto err_release_group;
|
|
}
|
|
|
|
ctx = edac_dev->pvt_info;
|
|
ctx->dev_csr = dev_csr;
|
|
ctx->name = "xgene_l3_err";
|
|
ctx->edac_idx = edac_idx;
|
|
ctx->edac = edac;
|
|
ctx->edac_dev = edac_dev;
|
|
ctx->ddev = *edac->dev;
|
|
ctx->version = version;
|
|
edac_dev->dev = &ctx->ddev;
|
|
edac_dev->ctl_name = ctx->name;
|
|
edac_dev->dev_name = ctx->name;
|
|
edac_dev->mod_name = EDAC_MOD_STR;
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_POLL)
|
|
edac_dev->edac_check = xgene_edac_l3_check;
|
|
|
|
xgene_edac_l3_create_debugfs_nodes(edac_dev);
|
|
|
|
rc = edac_device_add_device(edac_dev);
|
|
if (rc > 0) {
|
|
dev_err(edac->dev, "failed edac_device_add_device()\n");
|
|
rc = -ENOMEM;
|
|
goto err_ctl_free;
|
|
}
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_INT)
|
|
edac_dev->op_state = OP_RUNNING_INTERRUPT;
|
|
|
|
list_add(&ctx->next, &edac->l3s);
|
|
|
|
xgene_edac_l3_hw_init(edac_dev, 1);
|
|
|
|
devres_remove_group(edac->dev, xgene_edac_l3_add);
|
|
|
|
dev_info(edac->dev, "X-Gene EDAC L3 registered\n");
|
|
return 0;
|
|
|
|
err_ctl_free:
|
|
edac_device_free_ctl_info(edac_dev);
|
|
err_release_group:
|
|
devres_release_group(edac->dev, xgene_edac_l3_add);
|
|
return rc;
|
|
}
|
|
|
|
static int xgene_edac_l3_remove(struct xgene_edac_dev_ctx *l3)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev = l3->edac_dev;
|
|
|
|
xgene_edac_l3_hw_init(edac_dev, 0);
|
|
edac_device_del_device(l3->edac->dev);
|
|
edac_device_free_ctl_info(edac_dev);
|
|
return 0;
|
|
}
|
|
|
|
/* SoC error device */
|
|
#define IOBAXIS0TRANSERRINTSTS 0x0000
|
|
#define IOBAXIS0_M_ILLEGAL_ACCESS_MASK BIT(1)
|
|
#define IOBAXIS0_ILLEGAL_ACCESS_MASK BIT(0)
|
|
#define IOBAXIS0TRANSERRINTMSK 0x0004
|
|
#define IOBAXIS0TRANSERRREQINFOL 0x0008
|
|
#define IOBAXIS0TRANSERRREQINFOH 0x000c
|
|
#define REQTYPE_RD(src) (((src) & BIT(0)))
|
|
#define ERRADDRH_RD(src) (((src) & 0xffc00000) >> 22)
|
|
#define IOBAXIS1TRANSERRINTSTS 0x0010
|
|
#define IOBAXIS1TRANSERRINTMSK 0x0014
|
|
#define IOBAXIS1TRANSERRREQINFOL 0x0018
|
|
#define IOBAXIS1TRANSERRREQINFOH 0x001c
|
|
#define IOBPATRANSERRINTSTS 0x0020
|
|
#define IOBPA_M_REQIDRAM_CORRUPT_MASK BIT(7)
|
|
#define IOBPA_REQIDRAM_CORRUPT_MASK BIT(6)
|
|
#define IOBPA_M_TRANS_CORRUPT_MASK BIT(5)
|
|
#define IOBPA_TRANS_CORRUPT_MASK BIT(4)
|
|
#define IOBPA_M_WDATA_CORRUPT_MASK BIT(3)
|
|
#define IOBPA_WDATA_CORRUPT_MASK BIT(2)
|
|
#define IOBPA_M_RDATA_CORRUPT_MASK BIT(1)
|
|
#define IOBPA_RDATA_CORRUPT_MASK BIT(0)
|
|
#define IOBBATRANSERRINTSTS 0x0030
|
|
#define M_ILLEGAL_ACCESS_MASK BIT(15)
|
|
#define ILLEGAL_ACCESS_MASK BIT(14)
|
|
#define M_WIDRAM_CORRUPT_MASK BIT(13)
|
|
#define WIDRAM_CORRUPT_MASK BIT(12)
|
|
#define M_RIDRAM_CORRUPT_MASK BIT(11)
|
|
#define RIDRAM_CORRUPT_MASK BIT(10)
|
|
#define M_TRANS_CORRUPT_MASK BIT(9)
|
|
#define TRANS_CORRUPT_MASK BIT(8)
|
|
#define M_WDATA_CORRUPT_MASK BIT(7)
|
|
#define WDATA_CORRUPT_MASK BIT(6)
|
|
#define M_RBM_POISONED_REQ_MASK BIT(5)
|
|
#define RBM_POISONED_REQ_MASK BIT(4)
|
|
#define M_XGIC_POISONED_REQ_MASK BIT(3)
|
|
#define XGIC_POISONED_REQ_MASK BIT(2)
|
|
#define M_WRERR_RESP_MASK BIT(1)
|
|
#define WRERR_RESP_MASK BIT(0)
|
|
#define IOBBATRANSERRREQINFOL 0x0038
|
|
#define IOBBATRANSERRREQINFOH 0x003c
|
|
#define REQTYPE_F2_RD(src) ((src) & BIT(0))
|
|
#define ERRADDRH_F2_RD(src) (((src) & 0xffc00000) >> 22)
|
|
#define IOBBATRANSERRCSWREQID 0x0040
|
|
#define XGICTRANSERRINTSTS 0x0050
|
|
#define M_WR_ACCESS_ERR_MASK BIT(3)
|
|
#define WR_ACCESS_ERR_MASK BIT(2)
|
|
#define M_RD_ACCESS_ERR_MASK BIT(1)
|
|
#define RD_ACCESS_ERR_MASK BIT(0)
|
|
#define XGICTRANSERRINTMSK 0x0054
|
|
#define XGICTRANSERRREQINFO 0x0058
|
|
#define REQTYPE_MASK BIT(26)
|
|
#define ERRADDR_RD(src) ((src) & 0x03ffffff)
|
|
#define GLBL_ERR_STS 0x0800
|
|
#define MDED_ERR_MASK BIT(3)
|
|
#define DED_ERR_MASK BIT(2)
|
|
#define MSEC_ERR_MASK BIT(1)
|
|
#define SEC_ERR_MASK BIT(0)
|
|
#define GLBL_SEC_ERRL 0x0810
|
|
#define GLBL_SEC_ERRH 0x0818
|
|
#define GLBL_MSEC_ERRL 0x0820
|
|
#define GLBL_MSEC_ERRH 0x0828
|
|
#define GLBL_DED_ERRL 0x0830
|
|
#define GLBL_DED_ERRLMASK 0x0834
|
|
#define GLBL_DED_ERRH 0x0838
|
|
#define GLBL_DED_ERRHMASK 0x083c
|
|
#define GLBL_MDED_ERRL 0x0840
|
|
#define GLBL_MDED_ERRLMASK 0x0844
|
|
#define GLBL_MDED_ERRH 0x0848
|
|
#define GLBL_MDED_ERRHMASK 0x084c
|
|
|
|
/* IO Bus Registers */
|
|
#define RBCSR 0x0000
|
|
#define STICKYERR_MASK BIT(0)
|
|
#define RBEIR 0x0008
|
|
#define AGENT_OFFLINE_ERR_MASK BIT(30)
|
|
#define UNIMPL_RBPAGE_ERR_MASK BIT(29)
|
|
#define WORD_ALIGNED_ERR_MASK BIT(28)
|
|
#define PAGE_ACCESS_ERR_MASK BIT(27)
|
|
#define WRITE_ACCESS_MASK BIT(26)
|
|
#define RBERRADDR_RD(src) ((src) & 0x03FFFFFF)
|
|
|
|
static const char * const soc_mem_err_v1[] = {
|
|
"10GbE0",
|
|
"10GbE1",
|
|
"Security",
|
|
"SATA45",
|
|
"SATA23/ETH23",
|
|
"SATA01/ETH01",
|
|
"USB1",
|
|
"USB0",
|
|
"QML",
|
|
"QM0",
|
|
"QM1 (XGbE01)",
|
|
"PCIE4",
|
|
"PCIE3",
|
|
"PCIE2",
|
|
"PCIE1",
|
|
"PCIE0",
|
|
"CTX Manager",
|
|
"OCM",
|
|
"1GbE",
|
|
"CLE",
|
|
"AHBC",
|
|
"PktDMA",
|
|
"GFC",
|
|
"MSLIM",
|
|
"10GbE2",
|
|
"10GbE3",
|
|
"QM2 (XGbE23)",
|
|
"IOB",
|
|
"unknown",
|
|
"unknown",
|
|
"unknown",
|
|
"unknown",
|
|
};
|
|
|
|
static void xgene_edac_iob_gic_report(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
u32 err_addr_lo;
|
|
u32 err_addr_hi;
|
|
u32 reg;
|
|
u32 info;
|
|
|
|
/* GIC transaction error interrupt */
|
|
reg = readl(ctx->dev_csr + XGICTRANSERRINTSTS);
|
|
if (!reg)
|
|
goto chk_iob_err;
|
|
dev_err(edac_dev->dev, "XGIC transaction error\n");
|
|
if (reg & RD_ACCESS_ERR_MASK)
|
|
dev_err(edac_dev->dev, "XGIC read size error\n");
|
|
if (reg & M_RD_ACCESS_ERR_MASK)
|
|
dev_err(edac_dev->dev, "Multiple XGIC read size error\n");
|
|
if (reg & WR_ACCESS_ERR_MASK)
|
|
dev_err(edac_dev->dev, "XGIC write size error\n");
|
|
if (reg & M_WR_ACCESS_ERR_MASK)
|
|
dev_err(edac_dev->dev, "Multiple XGIC write size error\n");
|
|
info = readl(ctx->dev_csr + XGICTRANSERRREQINFO);
|
|
dev_err(edac_dev->dev, "XGIC %s access @ 0x%08X (0x%08X)\n",
|
|
info & REQTYPE_MASK ? "read" : "write", ERRADDR_RD(info),
|
|
info);
|
|
writel(reg, ctx->dev_csr + XGICTRANSERRINTSTS);
|
|
|
|
chk_iob_err:
|
|
/* IOB memory error */
|
|
reg = readl(ctx->dev_csr + GLBL_ERR_STS);
|
|
if (!reg)
|
|
return;
|
|
if (reg & SEC_ERR_MASK) {
|
|
err_addr_lo = readl(ctx->dev_csr + GLBL_SEC_ERRL);
|
|
err_addr_hi = readl(ctx->dev_csr + GLBL_SEC_ERRH);
|
|
dev_err(edac_dev->dev,
|
|
"IOB single-bit correctable memory at 0x%08X.%08X error\n",
|
|
err_addr_lo, err_addr_hi);
|
|
writel(err_addr_lo, ctx->dev_csr + GLBL_SEC_ERRL);
|
|
writel(err_addr_hi, ctx->dev_csr + GLBL_SEC_ERRH);
|
|
}
|
|
if (reg & MSEC_ERR_MASK) {
|
|
err_addr_lo = readl(ctx->dev_csr + GLBL_MSEC_ERRL);
|
|
err_addr_hi = readl(ctx->dev_csr + GLBL_MSEC_ERRH);
|
|
dev_err(edac_dev->dev,
|
|
"IOB multiple single-bit correctable memory at 0x%08X.%08X error\n",
|
|
err_addr_lo, err_addr_hi);
|
|
writel(err_addr_lo, ctx->dev_csr + GLBL_MSEC_ERRL);
|
|
writel(err_addr_hi, ctx->dev_csr + GLBL_MSEC_ERRH);
|
|
}
|
|
if (reg & (SEC_ERR_MASK | MSEC_ERR_MASK))
|
|
edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
|
|
if (reg & DED_ERR_MASK) {
|
|
err_addr_lo = readl(ctx->dev_csr + GLBL_DED_ERRL);
|
|
err_addr_hi = readl(ctx->dev_csr + GLBL_DED_ERRH);
|
|
dev_err(edac_dev->dev,
|
|
"IOB double-bit uncorrectable memory at 0x%08X.%08X error\n",
|
|
err_addr_lo, err_addr_hi);
|
|
writel(err_addr_lo, ctx->dev_csr + GLBL_DED_ERRL);
|
|
writel(err_addr_hi, ctx->dev_csr + GLBL_DED_ERRH);
|
|
}
|
|
if (reg & MDED_ERR_MASK) {
|
|
err_addr_lo = readl(ctx->dev_csr + GLBL_MDED_ERRL);
|
|
err_addr_hi = readl(ctx->dev_csr + GLBL_MDED_ERRH);
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB double-bit uncorrectable memory at 0x%08X.%08X error\n",
|
|
err_addr_lo, err_addr_hi);
|
|
writel(err_addr_lo, ctx->dev_csr + GLBL_MDED_ERRL);
|
|
writel(err_addr_hi, ctx->dev_csr + GLBL_MDED_ERRH);
|
|
}
|
|
if (reg & (DED_ERR_MASK | MDED_ERR_MASK))
|
|
edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
}
|
|
|
|
static void xgene_edac_rb_report(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
u32 err_addr_lo;
|
|
u32 err_addr_hi;
|
|
u32 reg;
|
|
|
|
/* If the register bus resource isn't available, just skip it */
|
|
if (!ctx->edac->rb_map)
|
|
goto rb_skip;
|
|
|
|
/*
|
|
* Check RB access errors
|
|
* 1. Out of range
|
|
* 2. Un-implemented page
|
|
* 3. Un-aligned access
|
|
* 4. Offline slave IP
|
|
*/
|
|
if (regmap_read(ctx->edac->rb_map, RBCSR, ®))
|
|
return;
|
|
if (reg & STICKYERR_MASK) {
|
|
bool write;
|
|
u32 address;
|
|
|
|
dev_err(edac_dev->dev, "IOB bus access error(s)\n");
|
|
if (regmap_read(ctx->edac->rb_map, RBEIR, ®))
|
|
return;
|
|
write = reg & WRITE_ACCESS_MASK ? 1 : 0;
|
|
address = RBERRADDR_RD(reg);
|
|
if (reg & AGENT_OFFLINE_ERR_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"IOB bus %s access to offline agent error\n",
|
|
write ? "write" : "read");
|
|
if (reg & UNIMPL_RBPAGE_ERR_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"IOB bus %s access to unimplemented page error\n",
|
|
write ? "write" : "read");
|
|
if (reg & WORD_ALIGNED_ERR_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"IOB bus %s word aligned access error\n",
|
|
write ? "write" : "read");
|
|
if (reg & PAGE_ACCESS_ERR_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"IOB bus %s to page out of range access error\n",
|
|
write ? "write" : "read");
|
|
if (regmap_write(ctx->edac->rb_map, RBEIR, 0))
|
|
return;
|
|
if (regmap_write(ctx->edac->rb_map, RBCSR, 0))
|
|
return;
|
|
}
|
|
rb_skip:
|
|
|
|
/* IOB Bridge agent transaction error interrupt */
|
|
reg = readl(ctx->dev_csr + IOBBATRANSERRINTSTS);
|
|
if (!reg)
|
|
return;
|
|
|
|
dev_err(edac_dev->dev, "IOB bridge agent (BA) transaction error\n");
|
|
if (reg & WRERR_RESP_MASK)
|
|
dev_err(edac_dev->dev, "IOB BA write response error\n");
|
|
if (reg & M_WRERR_RESP_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB BA write response error\n");
|
|
if (reg & XGIC_POISONED_REQ_MASK)
|
|
dev_err(edac_dev->dev, "IOB BA XGIC poisoned write error\n");
|
|
if (reg & M_XGIC_POISONED_REQ_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB BA XGIC poisoned write error\n");
|
|
if (reg & RBM_POISONED_REQ_MASK)
|
|
dev_err(edac_dev->dev, "IOB BA RBM poisoned write error\n");
|
|
if (reg & M_RBM_POISONED_REQ_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB BA RBM poisoned write error\n");
|
|
if (reg & WDATA_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "IOB BA write error\n");
|
|
if (reg & M_WDATA_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "Multiple IOB BA write error\n");
|
|
if (reg & TRANS_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "IOB BA transaction error\n");
|
|
if (reg & M_TRANS_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "Multiple IOB BA transaction error\n");
|
|
if (reg & RIDRAM_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"IOB BA RDIDRAM read transaction ID error\n");
|
|
if (reg & M_RIDRAM_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB BA RDIDRAM read transaction ID error\n");
|
|
if (reg & WIDRAM_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"IOB BA RDIDRAM write transaction ID error\n");
|
|
if (reg & M_WIDRAM_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB BA RDIDRAM write transaction ID error\n");
|
|
if (reg & ILLEGAL_ACCESS_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"IOB BA XGIC/RB illegal access error\n");
|
|
if (reg & M_ILLEGAL_ACCESS_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB BA XGIC/RB illegal access error\n");
|
|
|
|
err_addr_lo = readl(ctx->dev_csr + IOBBATRANSERRREQINFOL);
|
|
err_addr_hi = readl(ctx->dev_csr + IOBBATRANSERRREQINFOH);
|
|
dev_err(edac_dev->dev, "IOB BA %s access at 0x%02X.%08X (0x%08X)\n",
|
|
REQTYPE_F2_RD(err_addr_hi) ? "read" : "write",
|
|
ERRADDRH_F2_RD(err_addr_hi), err_addr_lo, err_addr_hi);
|
|
if (reg & WRERR_RESP_MASK)
|
|
dev_err(edac_dev->dev, "IOB BA requestor ID 0x%08X\n",
|
|
readl(ctx->dev_csr + IOBBATRANSERRCSWREQID));
|
|
writel(reg, ctx->dev_csr + IOBBATRANSERRINTSTS);
|
|
}
|
|
|
|
static void xgene_edac_pa_report(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
u32 err_addr_lo;
|
|
u32 err_addr_hi;
|
|
u32 reg;
|
|
|
|
/* IOB Processing agent transaction error interrupt */
|
|
reg = readl(ctx->dev_csr + IOBPATRANSERRINTSTS);
|
|
if (!reg)
|
|
goto chk_iob_axi0;
|
|
dev_err(edac_dev->dev, "IOB processing agent (PA) transaction error\n");
|
|
if (reg & IOBPA_RDATA_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "IOB PA read data RAM error\n");
|
|
if (reg & IOBPA_M_RDATA_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB PA read data RAM error\n");
|
|
if (reg & IOBPA_WDATA_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "IOB PA write data RAM error\n");
|
|
if (reg & IOBPA_M_WDATA_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB PA write data RAM error\n");
|
|
if (reg & IOBPA_TRANS_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "IOB PA transaction error\n");
|
|
if (reg & IOBPA_M_TRANS_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "Multiple IOB PA transaction error\n");
|
|
if (reg & IOBPA_REQIDRAM_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev, "IOB PA transaction ID RAM error\n");
|
|
if (reg & IOBPA_M_REQIDRAM_CORRUPT_MASK)
|
|
dev_err(edac_dev->dev,
|
|
"Multiple IOB PA transaction ID RAM error\n");
|
|
writel(reg, ctx->dev_csr + IOBPATRANSERRINTSTS);
|
|
|
|
chk_iob_axi0:
|
|
/* IOB AXI0 Error */
|
|
reg = readl(ctx->dev_csr + IOBAXIS0TRANSERRINTSTS);
|
|
if (!reg)
|
|
goto chk_iob_axi1;
|
|
err_addr_lo = readl(ctx->dev_csr + IOBAXIS0TRANSERRREQINFOL);
|
|
err_addr_hi = readl(ctx->dev_csr + IOBAXIS0TRANSERRREQINFOH);
|
|
dev_err(edac_dev->dev,
|
|
"%sAXI slave 0 illegal %s access @ 0x%02X.%08X (0x%08X)\n",
|
|
reg & IOBAXIS0_M_ILLEGAL_ACCESS_MASK ? "Multiple " : "",
|
|
REQTYPE_RD(err_addr_hi) ? "read" : "write",
|
|
ERRADDRH_RD(err_addr_hi), err_addr_lo, err_addr_hi);
|
|
writel(reg, ctx->dev_csr + IOBAXIS0TRANSERRINTSTS);
|
|
|
|
chk_iob_axi1:
|
|
/* IOB AXI1 Error */
|
|
reg = readl(ctx->dev_csr + IOBAXIS1TRANSERRINTSTS);
|
|
if (!reg)
|
|
return;
|
|
err_addr_lo = readl(ctx->dev_csr + IOBAXIS1TRANSERRREQINFOL);
|
|
err_addr_hi = readl(ctx->dev_csr + IOBAXIS1TRANSERRREQINFOH);
|
|
dev_err(edac_dev->dev,
|
|
"%sAXI slave 1 illegal %s access @ 0x%02X.%08X (0x%08X)\n",
|
|
reg & IOBAXIS0_M_ILLEGAL_ACCESS_MASK ? "Multiple " : "",
|
|
REQTYPE_RD(err_addr_hi) ? "read" : "write",
|
|
ERRADDRH_RD(err_addr_hi), err_addr_lo, err_addr_hi);
|
|
writel(reg, ctx->dev_csr + IOBAXIS1TRANSERRINTSTS);
|
|
}
|
|
|
|
static void xgene_edac_soc_check(struct edac_device_ctl_info *edac_dev)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
const char * const *soc_mem_err = NULL;
|
|
u32 pcp_hp_stat;
|
|
u32 pcp_lp_stat;
|
|
u32 reg;
|
|
int i;
|
|
|
|
xgene_edac_pcp_rd(ctx->edac, PCPHPERRINTSTS, &pcp_hp_stat);
|
|
xgene_edac_pcp_rd(ctx->edac, PCPLPERRINTSTS, &pcp_lp_stat);
|
|
xgene_edac_pcp_rd(ctx->edac, MEMERRINTSTS, ®);
|
|
if (!((pcp_hp_stat & (IOB_PA_ERR_MASK | IOB_BA_ERR_MASK |
|
|
IOB_XGIC_ERR_MASK | IOB_RB_ERR_MASK)) ||
|
|
(pcp_lp_stat & CSW_SWITCH_TRACE_ERR_MASK) || reg))
|
|
return;
|
|
|
|
if (pcp_hp_stat & IOB_XGIC_ERR_MASK)
|
|
xgene_edac_iob_gic_report(edac_dev);
|
|
|
|
if (pcp_hp_stat & (IOB_RB_ERR_MASK | IOB_BA_ERR_MASK))
|
|
xgene_edac_rb_report(edac_dev);
|
|
|
|
if (pcp_hp_stat & IOB_PA_ERR_MASK)
|
|
xgene_edac_pa_report(edac_dev);
|
|
|
|
if (pcp_lp_stat & CSW_SWITCH_TRACE_ERR_MASK) {
|
|
dev_info(edac_dev->dev,
|
|
"CSW switch trace correctable memory parity error\n");
|
|
edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
}
|
|
|
|
if (!reg)
|
|
return;
|
|
if (ctx->version == 1)
|
|
soc_mem_err = soc_mem_err_v1;
|
|
if (!soc_mem_err) {
|
|
dev_err(edac_dev->dev, "SoC memory parity error 0x%08X\n",
|
|
reg);
|
|
edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
|
|
return;
|
|
}
|
|
for (i = 0; i < 31; i++) {
|
|
if (reg & (1 << i)) {
|
|
dev_err(edac_dev->dev, "%s memory parity error\n",
|
|
soc_mem_err[i]);
|
|
edac_device_handle_ue(edac_dev, 0, 0,
|
|
edac_dev->ctl_name);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void xgene_edac_soc_hw_init(struct edac_device_ctl_info *edac_dev,
|
|
bool enable)
|
|
{
|
|
struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
|
|
|
|
/* Enable SoC IP error interrupt */
|
|
if (edac_dev->op_state == OP_RUNNING_INTERRUPT) {
|
|
if (enable) {
|
|
xgene_edac_pcp_clrbits(ctx->edac, PCPHPERRINTMSK,
|
|
IOB_PA_ERR_MASK |
|
|
IOB_BA_ERR_MASK |
|
|
IOB_XGIC_ERR_MASK |
|
|
IOB_RB_ERR_MASK);
|
|
xgene_edac_pcp_clrbits(ctx->edac, PCPLPERRINTMSK,
|
|
CSW_SWITCH_TRACE_ERR_MASK);
|
|
} else {
|
|
xgene_edac_pcp_setbits(ctx->edac, PCPHPERRINTMSK,
|
|
IOB_PA_ERR_MASK |
|
|
IOB_BA_ERR_MASK |
|
|
IOB_XGIC_ERR_MASK |
|
|
IOB_RB_ERR_MASK);
|
|
xgene_edac_pcp_setbits(ctx->edac, PCPLPERRINTMSK,
|
|
CSW_SWITCH_TRACE_ERR_MASK);
|
|
}
|
|
|
|
writel(enable ? 0x0 : 0xFFFFFFFF,
|
|
ctx->dev_csr + IOBAXIS0TRANSERRINTMSK);
|
|
writel(enable ? 0x0 : 0xFFFFFFFF,
|
|
ctx->dev_csr + IOBAXIS1TRANSERRINTMSK);
|
|
writel(enable ? 0x0 : 0xFFFFFFFF,
|
|
ctx->dev_csr + XGICTRANSERRINTMSK);
|
|
|
|
xgene_edac_pcp_setbits(ctx->edac, MEMERRINTMSK,
|
|
enable ? 0x0 : 0xFFFFFFFF);
|
|
}
|
|
}
|
|
|
|
static int xgene_edac_soc_add(struct xgene_edac *edac, struct device_node *np,
|
|
int version)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev;
|
|
struct xgene_edac_dev_ctx *ctx;
|
|
void __iomem *dev_csr;
|
|
struct resource res;
|
|
int edac_idx;
|
|
int rc;
|
|
|
|
if (!devres_open_group(edac->dev, xgene_edac_soc_add, GFP_KERNEL))
|
|
return -ENOMEM;
|
|
|
|
rc = of_address_to_resource(np, 0, &res);
|
|
if (rc < 0) {
|
|
dev_err(edac->dev, "no SoC resource address\n");
|
|
goto err_release_group;
|
|
}
|
|
dev_csr = devm_ioremap_resource(edac->dev, &res);
|
|
if (IS_ERR(dev_csr)) {
|
|
dev_err(edac->dev,
|
|
"devm_ioremap_resource failed for soc resource address\n");
|
|
rc = PTR_ERR(dev_csr);
|
|
goto err_release_group;
|
|
}
|
|
|
|
edac_idx = edac_device_alloc_index();
|
|
edac_dev = edac_device_alloc_ctl_info(sizeof(*ctx),
|
|
"SOC", 1, "SOC", 1, 2, NULL, 0,
|
|
edac_idx);
|
|
if (!edac_dev) {
|
|
rc = -ENOMEM;
|
|
goto err_release_group;
|
|
}
|
|
|
|
ctx = edac_dev->pvt_info;
|
|
ctx->dev_csr = dev_csr;
|
|
ctx->name = "xgene_soc_err";
|
|
ctx->edac_idx = edac_idx;
|
|
ctx->edac = edac;
|
|
ctx->edac_dev = edac_dev;
|
|
ctx->ddev = *edac->dev;
|
|
ctx->version = version;
|
|
edac_dev->dev = &ctx->ddev;
|
|
edac_dev->ctl_name = ctx->name;
|
|
edac_dev->dev_name = ctx->name;
|
|
edac_dev->mod_name = EDAC_MOD_STR;
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_POLL)
|
|
edac_dev->edac_check = xgene_edac_soc_check;
|
|
|
|
rc = edac_device_add_device(edac_dev);
|
|
if (rc > 0) {
|
|
dev_err(edac->dev, "failed edac_device_add_device()\n");
|
|
rc = -ENOMEM;
|
|
goto err_ctl_free;
|
|
}
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_INT)
|
|
edac_dev->op_state = OP_RUNNING_INTERRUPT;
|
|
|
|
list_add(&ctx->next, &edac->socs);
|
|
|
|
xgene_edac_soc_hw_init(edac_dev, 1);
|
|
|
|
devres_remove_group(edac->dev, xgene_edac_soc_add);
|
|
|
|
dev_info(edac->dev, "X-Gene EDAC SoC registered\n");
|
|
|
|
return 0;
|
|
|
|
err_ctl_free:
|
|
edac_device_free_ctl_info(edac_dev);
|
|
err_release_group:
|
|
devres_release_group(edac->dev, xgene_edac_soc_add);
|
|
return rc;
|
|
}
|
|
|
|
static int xgene_edac_soc_remove(struct xgene_edac_dev_ctx *soc)
|
|
{
|
|
struct edac_device_ctl_info *edac_dev = soc->edac_dev;
|
|
|
|
xgene_edac_soc_hw_init(edac_dev, 0);
|
|
edac_device_del_device(soc->edac->dev);
|
|
edac_device_free_ctl_info(edac_dev);
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t xgene_edac_isr(int irq, void *dev_id)
|
|
{
|
|
struct xgene_edac *ctx = dev_id;
|
|
struct xgene_edac_pmd_ctx *pmd;
|
|
struct xgene_edac_dev_ctx *node;
|
|
unsigned int pcp_hp_stat;
|
|
unsigned int pcp_lp_stat;
|
|
|
|
xgene_edac_pcp_rd(ctx, PCPHPERRINTSTS, &pcp_hp_stat);
|
|
xgene_edac_pcp_rd(ctx, PCPLPERRINTSTS, &pcp_lp_stat);
|
|
if ((MCU_UNCORR_ERR_MASK & pcp_hp_stat) ||
|
|
(MCU_CTL_ERR_MASK & pcp_hp_stat) ||
|
|
(MCU_CORR_ERR_MASK & pcp_lp_stat)) {
|
|
struct xgene_edac_mc_ctx *mcu;
|
|
|
|
list_for_each_entry(mcu, &ctx->mcus, next)
|
|
xgene_edac_mc_check(mcu->mci);
|
|
}
|
|
|
|
list_for_each_entry(pmd, &ctx->pmds, next) {
|
|
if ((PMD0_MERR_MASK << pmd->pmd) & pcp_hp_stat)
|
|
xgene_edac_pmd_check(pmd->edac_dev);
|
|
}
|
|
|
|
list_for_each_entry(node, &ctx->l3s, next)
|
|
xgene_edac_l3_check(node->edac_dev);
|
|
|
|
list_for_each_entry(node, &ctx->socs, next)
|
|
xgene_edac_soc_check(node->edac_dev);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int xgene_edac_probe(struct platform_device *pdev)
|
|
{
|
|
struct xgene_edac *edac;
|
|
struct device_node *child;
|
|
struct resource *res;
|
|
int rc;
|
|
|
|
edac = devm_kzalloc(&pdev->dev, sizeof(*edac), GFP_KERNEL);
|
|
if (!edac)
|
|
return -ENOMEM;
|
|
|
|
edac->dev = &pdev->dev;
|
|
platform_set_drvdata(pdev, edac);
|
|
INIT_LIST_HEAD(&edac->mcus);
|
|
INIT_LIST_HEAD(&edac->pmds);
|
|
INIT_LIST_HEAD(&edac->l3s);
|
|
INIT_LIST_HEAD(&edac->socs);
|
|
spin_lock_init(&edac->lock);
|
|
mutex_init(&edac->mc_lock);
|
|
|
|
edac->csw_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
|
|
"regmap-csw");
|
|
if (IS_ERR(edac->csw_map)) {
|
|
dev_err(edac->dev, "unable to get syscon regmap csw\n");
|
|
rc = PTR_ERR(edac->csw_map);
|
|
goto out_err;
|
|
}
|
|
|
|
edac->mcba_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
|
|
"regmap-mcba");
|
|
if (IS_ERR(edac->mcba_map)) {
|
|
dev_err(edac->dev, "unable to get syscon regmap mcba\n");
|
|
rc = PTR_ERR(edac->mcba_map);
|
|
goto out_err;
|
|
}
|
|
|
|
edac->mcbb_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
|
|
"regmap-mcbb");
|
|
if (IS_ERR(edac->mcbb_map)) {
|
|
dev_err(edac->dev, "unable to get syscon regmap mcbb\n");
|
|
rc = PTR_ERR(edac->mcbb_map);
|
|
goto out_err;
|
|
}
|
|
edac->efuse_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
|
|
"regmap-efuse");
|
|
if (IS_ERR(edac->efuse_map)) {
|
|
dev_err(edac->dev, "unable to get syscon regmap efuse\n");
|
|
rc = PTR_ERR(edac->efuse_map);
|
|
goto out_err;
|
|
}
|
|
|
|
/*
|
|
* NOTE: The register bus resource is optional for compatibility
|
|
* reason.
|
|
*/
|
|
edac->rb_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
|
|
"regmap-rb");
|
|
if (IS_ERR(edac->rb_map)) {
|
|
dev_warn(edac->dev, "missing syscon regmap rb\n");
|
|
edac->rb_map = NULL;
|
|
}
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
edac->pcp_csr = devm_ioremap_resource(&pdev->dev, res);
|
|
if (IS_ERR(edac->pcp_csr)) {
|
|
dev_err(&pdev->dev, "no PCP resource address\n");
|
|
rc = PTR_ERR(edac->pcp_csr);
|
|
goto out_err;
|
|
}
|
|
|
|
if (edac_op_state == EDAC_OPSTATE_INT) {
|
|
int irq;
|
|
int i;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
irq = platform_get_irq(pdev, i);
|
|
if (irq < 0) {
|
|
dev_err(&pdev->dev, "No IRQ resource\n");
|
|
rc = -EINVAL;
|
|
goto out_err;
|
|
}
|
|
rc = devm_request_irq(&pdev->dev, irq,
|
|
xgene_edac_isr, IRQF_SHARED,
|
|
dev_name(&pdev->dev), edac);
|
|
if (rc) {
|
|
dev_err(&pdev->dev,
|
|
"Could not request IRQ %d\n", irq);
|
|
goto out_err;
|
|
}
|
|
}
|
|
}
|
|
|
|
edac->dfs = edac_debugfs_create_dir(pdev->dev.kobj.name);
|
|
|
|
for_each_child_of_node(pdev->dev.of_node, child) {
|
|
if (!of_device_is_available(child))
|
|
continue;
|
|
if (of_device_is_compatible(child, "apm,xgene-edac-mc"))
|
|
xgene_edac_mc_add(edac, child);
|
|
if (of_device_is_compatible(child, "apm,xgene-edac-pmd"))
|
|
xgene_edac_pmd_add(edac, child, 1);
|
|
if (of_device_is_compatible(child, "apm,xgene-edac-pmd-v2"))
|
|
xgene_edac_pmd_add(edac, child, 2);
|
|
if (of_device_is_compatible(child, "apm,xgene-edac-l3"))
|
|
xgene_edac_l3_add(edac, child, 1);
|
|
if (of_device_is_compatible(child, "apm,xgene-edac-l3-v2"))
|
|
xgene_edac_l3_add(edac, child, 2);
|
|
if (of_device_is_compatible(child, "apm,xgene-edac-soc"))
|
|
xgene_edac_soc_add(edac, child, 0);
|
|
if (of_device_is_compatible(child, "apm,xgene-edac-soc-v1"))
|
|
xgene_edac_soc_add(edac, child, 1);
|
|
}
|
|
|
|
return 0;
|
|
|
|
out_err:
|
|
return rc;
|
|
}
|
|
|
|
static int xgene_edac_remove(struct platform_device *pdev)
|
|
{
|
|
struct xgene_edac *edac = dev_get_drvdata(&pdev->dev);
|
|
struct xgene_edac_mc_ctx *mcu;
|
|
struct xgene_edac_mc_ctx *temp_mcu;
|
|
struct xgene_edac_pmd_ctx *pmd;
|
|
struct xgene_edac_pmd_ctx *temp_pmd;
|
|
struct xgene_edac_dev_ctx *node;
|
|
struct xgene_edac_dev_ctx *temp_node;
|
|
|
|
list_for_each_entry_safe(mcu, temp_mcu, &edac->mcus, next)
|
|
xgene_edac_mc_remove(mcu);
|
|
|
|
list_for_each_entry_safe(pmd, temp_pmd, &edac->pmds, next)
|
|
xgene_edac_pmd_remove(pmd);
|
|
|
|
list_for_each_entry_safe(node, temp_node, &edac->l3s, next)
|
|
xgene_edac_l3_remove(node);
|
|
|
|
list_for_each_entry_safe(node, temp_node, &edac->socs, next)
|
|
xgene_edac_soc_remove(node);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id xgene_edac_of_match[] = {
|
|
{ .compatible = "apm,xgene-edac" },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, xgene_edac_of_match);
|
|
|
|
static struct platform_driver xgene_edac_driver = {
|
|
.probe = xgene_edac_probe,
|
|
.remove = xgene_edac_remove,
|
|
.driver = {
|
|
.name = "xgene-edac",
|
|
.of_match_table = xgene_edac_of_match,
|
|
},
|
|
};
|
|
|
|
static int __init xgene_edac_init(void)
|
|
{
|
|
int rc;
|
|
|
|
/* Make sure error reporting method is sane */
|
|
switch (edac_op_state) {
|
|
case EDAC_OPSTATE_POLL:
|
|
case EDAC_OPSTATE_INT:
|
|
break;
|
|
default:
|
|
edac_op_state = EDAC_OPSTATE_INT;
|
|
break;
|
|
}
|
|
|
|
rc = platform_driver_register(&xgene_edac_driver);
|
|
if (rc) {
|
|
edac_printk(KERN_ERR, EDAC_MOD_STR,
|
|
"EDAC fails to register\n");
|
|
goto reg_failed;
|
|
}
|
|
|
|
return 0;
|
|
|
|
reg_failed:
|
|
return rc;
|
|
}
|
|
module_init(xgene_edac_init);
|
|
|
|
static void __exit xgene_edac_exit(void)
|
|
{
|
|
platform_driver_unregister(&xgene_edac_driver);
|
|
}
|
|
module_exit(xgene_edac_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Feng Kan <fkan@apm.com>");
|
|
MODULE_DESCRIPTION("APM X-Gene EDAC driver");
|
|
module_param(edac_op_state, int, 0444);
|
|
MODULE_PARM_DESC(edac_op_state,
|
|
"EDAC error reporting state: 0=Poll, 2=Interrupt");
|