On Sat, Jul 25, 2015 at 01:07:42AM -0600, Loc Ho wrote:
> This patch adds EDAC support for the L3 and SoC components.
>
> Signed-off-by: Loc Ho <[email protected]>
> ---
> drivers/edac/xgene_edac.c | 804
> +++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 804 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/edac/xgene_edac.c b/drivers/edac/xgene_edac.c
> index ba06904..ed99f85 100644
> --- a/drivers/edac/xgene_edac.c
> +++ b/drivers/edac/xgene_edac.c
> @@ -66,6 +66,8 @@ struct xgene_edac {
>
> struct list_head mcus;
> struct list_head pmds;
> + struct list_head l3s;
> + struct list_head socs;
>
> struct mutex mc_lock;
> int mc_active_mask;
> @@ -1016,10 +1018,783 @@ static int xgene_edac_pmd_remove(struct
> xgene_edac_pmd_ctx *pmd)
> 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;
> +};
> +
> +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) {
> + /*
> + * Version 1 of the L3C has broken single bit correctable
> + * logic. Therefore, map all errors as uncorrectable.
> + */
> + edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
> + } else {
> + 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)
arg alignment. It should be
function name(arg1, arg2,
arg3, arg4,
arg5...
Check your other functions too.
> +{
> + 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)
> +e{
> + 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;
> +}
> +
> e+static const struct file_operations xgene_edac_l3_debug_inject_fops = {
> + .open = simple_open,
> + .write = xgene_edac_l3_inject_ctrl_write,
>n + .llseek = generic_file_llseek
> +};
> +
> +static void xgene_edac_l3_create_debugfs_nodes(
> + struct edac_device_ctl_info *edac_dev)
This "(" brace at the end looks ugly. Simply leave it on the same line,
even if if it is longer than 80-cols.
You can do:
static void xgene_edac_l3_create_debugfs_nodes(struct edac_device_ctl_info
*edac_dev)
{
or:
static void
xgene_edac_l3_create_debugfs_nodes(struct edac_device_ctl_info *edac_dev)
{
which is more readable.
> +{
> + struct xgene_edac_dev_ctx *ctx = edac_dev->pvt_info;
> + struct dentry *edac_debugfs;
> + char name[30];
> +
> + if (!IS_ENABLED(CONFIG_EDAC_DEBUG))
> + return;
> +
> + /*
> + * Todo: Switch to common EDAC debug file system for edac device
> + * when available.
> + */
What is that?
> + if (!ctx->edac->dfs) {
> + ctx->edac->dfs = debugfs_create_dir(edac_dev->dev->kobj.name,
> + NULL);
> + if (!ctx->edac->dfs)
> + return;
> + }
> + sprintf(name, "l3c%d", ctx->edac_idx);
> + edac_debugfs = debugfs_create_dir(name, ctx->edac->dfs);
> + if (!edac_debugfs)
> + return;
> +
> + debugfs_create_file("l3_inject_ctrl", S_IWUSR, edac_debugfs, 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;
> + }
> + 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;
> + }
>
> + 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;
> + }
> +
> + 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;
So depending on what SoC elements you detect, the last one's check
function will win?
If xgene_edac loads on multiple SoC elements, you need a global xgene
check function for which l3, soc, mc, etc register...
> +
> + 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 err1;
> + }
> +
> + 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;
> +
> +err1:
> + edac_device_free_ctl_info(edac_dev);
> +err:
Those labels need to be better named.
> + 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
> +
> +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) {
> + 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);
> + }
> +
> + /* IOB memory error */
> + reg = readl(ctx->dev_csr + GLBL_ERR_STS);
> + if (reg) {
> + 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);
> + }
You can flip the logic in that function:
if (!reg)
and use goto labels and thus save an indentation level. Which looks like
you could use it.
> +}
> +
> +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;
> +
> + /* 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) {
> + dev_err(edac_dev->dev,
> + "IOB procesing 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,
> + "Mutilple 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,
> + "Mutilple 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,
> + "Mutilple 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);
> + }
> +
> + /* IOB AXI0 Error */
> + reg = readl(ctx->dev_csr + IOBAXIS0TRANSERRINTSTS);
> + if (reg) {
> + 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);
> + }
> +
> + /* IOB AXI1 Error */
> + reg = readl(ctx->dev_csr + IOBAXIS1TRANSERRINTSTS);
> + if (reg) {
> + 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);
> + }
Same here.
> +}
> +
> +static const char * const *xgene_edac_soc_mem_data(
> + struct xgene_edac_dev_ctx *ctx)
> +{
> + switch (ctx->version) {
> + case 1:
> + return soc_mem_err_v1;
> + default:
> + return NULL;
> + }
> +}
That's one badly formatted function used only once. Just move the logic
there and kill it.
> +
> +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;
> + 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);
> + }
> +
> + soc_mem_err = xgene_edac_soc_mem_data(ctx);
> + 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);
> + } else {
> + 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 = 0;
> +
> + 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;
> + }
> + 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;
> + }
> +
> + 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;
> + }
> +
> + 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;
Same here about the ->edac_check function.
> +
> + rc = edac_device_add_device(edac_dev);
> + if (rc > 0) {
> + dev_err(edac->dev, "failed edac_device_add_device()\n");
> + rc = -ENOMEM;
> + goto err1;
> + }
> +
> + 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;
> +
> +err1:
> + edac_device_free_ctl_info(edac_dev);
> +err:
> + devres_release_group(edac->dev, xgene_edac_soc_add);
More descriptive labels.
> + 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;
>
> @@ -1040,6 +1815,14 @@ static irqreturn_t xgene_edac_isr(int irq, void
> *dev_id)
> 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);
> + }
Loops with single statements don't need {}
> +
> return IRQ_HANDLED;
> }
>
> @@ -1058,6 +1841,8 @@ static int xgene_edac_probe(struct platform_device
> *pdev)
> 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);
>
> @@ -1131,6 +1916,14 @@ static int xgene_edac_probe(struct platform_device
> *pdev)
> 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;
> @@ -1146,6 +1939,8 @@ static int xgene_edac_remove(struct platform_device
> *pdev)
> 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);
> @@ -1154,6 +1949,15 @@ static int xgene_edac_remove(struct platform_device
> *pdev)
> 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);
> + }
Ditto.
Also, I'd like Arnd to check the DT changes.
Thanks.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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