diff options
| -rw-r--r-- | drivers/cxl/core/pci.c | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index cbccc222bb91..d101fdafb07c 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -646,32 +646,36 @@ void read_cdat_data(struct cxl_port *port) } EXPORT_SYMBOL_NS_GPL(read_cdat_data, CXL); -void cxl_cor_error_detected(struct pci_dev *pdev) +static void __cxl_handle_cor_ras(struct cxl_dev_state *cxlds, + void __iomem *ras_base) { - struct cxl_dev_state *cxlds = pci_get_drvdata(pdev); void __iomem *addr; u32 status; - if (!cxlds->regs.ras) + if (!ras_base) return; - addr = cxlds->regs.ras + CXL_RAS_CORRECTABLE_STATUS_OFFSET; + addr = ras_base + CXL_RAS_CORRECTABLE_STATUS_OFFSET; status = readl(addr); if (status & CXL_RAS_CORRECTABLE_STATUS_MASK) { writel(status & CXL_RAS_CORRECTABLE_STATUS_MASK, addr); trace_cxl_aer_correctable_error(cxlds->cxlmd, status); } } -EXPORT_SYMBOL_NS_GPL(cxl_cor_error_detected, CXL); + +static void cxl_handle_endpoint_cor_ras(struct cxl_dev_state *cxlds) +{ + return __cxl_handle_cor_ras(cxlds, cxlds->regs.ras); +} /* CXL spec rev3.0 8.2.4.16.1 */ -static void header_log_copy(struct cxl_dev_state *cxlds, u32 *log) +static void header_log_copy(void __iomem *ras_base, u32 *log) { void __iomem *addr; u32 *log_addr; int i, log_u32_size = CXL_HEADERLOG_SIZE / sizeof(u32); - addr = cxlds->regs.ras + CXL_RAS_HEADER_LOG_OFFSET; + addr = ras_base + CXL_RAS_HEADER_LOG_OFFSET; log_addr = log; for (i = 0; i < log_u32_size; i++) { @@ -685,17 +689,18 @@ static void header_log_copy(struct cxl_dev_state *cxlds, u32 *log) * Log the state of the RAS status registers and prepare them to log the * next error status. Return 1 if reset needed. */ -static bool cxl_report_and_clear(struct cxl_dev_state *cxlds) +static bool __cxl_handle_ras(struct cxl_dev_state *cxlds, + void __iomem *ras_base) { u32 hl[CXL_HEADERLOG_SIZE_U32]; void __iomem *addr; u32 status; u32 fe; - if (!cxlds->regs.ras) + if (!ras_base) return false; - addr = cxlds->regs.ras + CXL_RAS_UNCORRECTABLE_STATUS_OFFSET; + addr = ras_base + CXL_RAS_UNCORRECTABLE_STATUS_OFFSET; status = readl(addr); if (!(status & CXL_RAS_UNCORRECTABLE_STATUS_MASK)) return false; @@ -703,7 +708,7 @@ static bool cxl_report_and_clear(struct cxl_dev_state *cxlds) /* If multiple errors, log header points to first error from ctrl reg */ if (hweight32(status) > 1) { void __iomem *rcc_addr = - cxlds->regs.ras + CXL_RAS_CAP_CONTROL_OFFSET; + ras_base + CXL_RAS_CAP_CONTROL_OFFSET; fe = BIT(FIELD_GET(CXL_RAS_CAP_CONTROL_FE_MASK, readl(rcc_addr))); @@ -711,13 +716,18 @@ static bool cxl_report_and_clear(struct cxl_dev_state *cxlds) fe = status; } - header_log_copy(cxlds, hl); + header_log_copy(ras_base, hl); trace_cxl_aer_uncorrectable_error(cxlds->cxlmd, status, fe, hl); writel(status & CXL_RAS_UNCORRECTABLE_STATUS_MASK, addr); return true; } +static bool cxl_handle_endpoint_ras(struct cxl_dev_state *cxlds) +{ + return __cxl_handle_ras(cxlds, cxlds->regs.ras); +} + #ifdef CONFIG_PCIEAER_CXL void cxl_setup_parent_dport(struct device *host, struct cxl_dport *dport) @@ -733,6 +743,14 @@ EXPORT_SYMBOL_NS_GPL(cxl_setup_parent_dport, CXL); #endif +void cxl_cor_error_detected(struct pci_dev *pdev) +{ + struct cxl_dev_state *cxlds = pci_get_drvdata(pdev); + + cxl_handle_endpoint_cor_ras(cxlds); +} +EXPORT_SYMBOL_NS_GPL(cxl_cor_error_detected, CXL); + pci_ers_result_t cxl_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { @@ -747,7 +765,7 @@ pci_ers_result_t cxl_error_detected(struct pci_dev *pdev, * chance the situation is recoverable dump the status of the RAS * capability registers and bounce the active state of the memdev. */ - ue = cxl_report_and_clear(cxlds); + ue = cxl_handle_endpoint_ras(cxlds); switch (state) { case pci_channel_io_normal: |