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-rw-r--r--src/soc/intel/meteorlake/Makefile.inc1
-rw-r--r--src/soc/intel/meteorlake/crashlog.c498
-rw-r--r--src/soc/intel/meteorlake/include/soc/crashlog.h21
-rw-r--r--src/soc/intel/meteorlake/include/soc/pci_devs.h4
4 files changed, 524 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/Makefile.inc b/src/soc/intel/meteorlake/Makefile.inc
index fd94cdaf81..aa82381fcd 100644
--- a/src/soc/intel/meteorlake/Makefile.inc
+++ b/src/soc/intel/meteorlake/Makefile.inc
@@ -31,6 +31,7 @@ romstage-y += soc_info.c
ramstage-y += acpi.c
ramstage-y += chip.c
ramstage-y += cpu.c
+ramstage-$(CONFIG_SOC_INTEL_CRASHLOG) += crashlog.c
ramstage-y += elog.c
ramstage-y += espi.c
ramstage-y += finalize.c
diff --git a/src/soc/intel/meteorlake/crashlog.c b/src/soc/intel/meteorlake/crashlog.c
new file mode 100644
index 0000000000..2e3c97ae4a
--- /dev/null
+++ b/src/soc/intel/meteorlake/crashlog.c
@@ -0,0 +1,498 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <arch/bert_storage.h>
+#include <console/console.h>
+#include <device/pci_ops.h>
+#include <intelblocks/crashlog.h>
+#include <intelblocks/pmc_ipc.h>
+#include <soc/crashlog.h>
+#include <soc/iomap.h>
+#include <soc/pci_devs.h>
+#include <string.h>
+
+/* global crashLog info */
+static bool m_pmc_crashLog_support;
+static bool m_pmc_crashLog_present;
+static bool m_cpu_crashLog_support;
+static bool m_cpu_crashLog_present;
+static bool m_ioe_crashLog_support;
+static bool m_ioe_crashLog_present;
+static u32 m_pmc_crashLog_size;
+static u32 m_ioe_crashLog_size;
+static u32 m_cpu_crashLog_size;
+static u32 cpu_crash_version;
+static pmc_ipc_discovery_buf_t discovery_buf;
+static pmc_crashlog_desc_table_t descriptor_table;
+static tel_crashlog_devsc_cap_t cpu_cl_devsc_cap;
+static cpu_crashlog_discovery_table_t cpu_cl_disc_tab;
+
+u32 __weak cl_get_cpu_mb_int_addr(void)
+{
+ return CRASHLOG_MAILBOX_INTF_ADDRESS;
+}
+
+/* Get the SRAM BAR. */
+static uintptr_t get_sram_bar(pci_devfn_t sram_devfn)
+{
+ uintptr_t sram_bar;
+ const struct device *dev;
+ struct resource *res;
+
+ dev = pcidev_path_on_root(sram_devfn);
+ if (!dev) {
+ printk(BIOS_ERR, "device: 0x%x not found!\n", sram_devfn);
+ return 0;
+ }
+
+ res = probe_resource(dev, PCI_BASE_ADDRESS_0);
+ if (!res) {
+ printk(BIOS_ERR, "SOC SRAM device not found!\n");
+ return 0;
+ }
+
+ /* Get the base address of the resource */
+ sram_bar = res->base;
+
+ return sram_bar;
+}
+
+static void configure_sram(const struct device *sram_dev, u32 base_addr)
+{
+ pci_update_config16(sram_dev, PCI_COMMAND, ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY), 0);
+
+ /* Program BAR 0 and enable command register memory space decoding */
+ pci_write_config32(sram_dev, PCI_BASE_ADDRESS_0, base_addr);
+ pci_or_config16(sram_dev, PCI_COMMAND, PCI_COMMAND_MEMORY);
+}
+
+void cl_get_pmc_sram_data(void)
+{
+ u32 *soc_pmc_dest = NULL, *ioe_pmc_dest = NULL;
+ u32 pmc_sram_base = cl_get_cpu_tmp_bar();
+ u32 ioe_sram_base = get_sram_bar(PCI_DEVFN_IOE_SRAM);
+ u32 pmc_crashLog_size = cl_get_pmc_record_size();
+ u32 ioe_crashLog_size = 0;
+
+ if (!pmc_sram_base) {
+ printk(BIOS_ERR, "PMC SRAM base not valid\n");
+ return;
+ }
+
+ if (!pmc_crashLog_size) {
+ printk(BIOS_ERR, "No PMC crashlog records\n");
+ return;
+ }
+
+ if (!ioe_sram_base) {
+ printk(BIOS_ERR, "IOE SRAM base not valid\n");
+ return;
+ }
+
+ configure_sram(PCI_DEV_IOE_SRAM, ioe_sram_base);
+
+ if (!cl_pmc_sram_has_mmio_access())
+ return;
+
+ if (!cl_ioe_sram_has_mmio_access())
+ return;
+
+ printk(BIOS_DEBUG, "PMC crashLog size : 0x%x\n", pmc_crashLog_size);
+
+ /* allocate memory for the PMC crash records to be copied */
+ unsigned long pmc_cl_cbmem_addr;
+
+ pmc_cl_cbmem_addr = (unsigned long) cbmem_add(CBMEM_ID_PMC_CRASHLOG,
+ pmc_crashLog_size);
+ if (!pmc_cl_cbmem_addr) {
+ printk(BIOS_ERR, "Unable to allocate CBMEM PMC crashLog entry.\n");
+ return;
+ }
+
+ memset((void *)pmc_cl_cbmem_addr, 0, pmc_crashLog_size);
+ soc_pmc_dest = (u32 *)(uintptr_t) pmc_cl_cbmem_addr;
+
+ bool pmc_sram = true;
+
+ /* process crashlog records for SOC PMC SRAM */
+ for (int i = 0; i < descriptor_table.numb_regions + 1; i++) {
+ printk(BIOS_DEBUG, "Region[0x%x].Tag=0x%x offset=0x%x, size=0x%x\n",
+ i,
+ descriptor_table.regions[i].bits.assign_tag,
+ descriptor_table.regions[i].bits.offset,
+ descriptor_table.regions[i].bits.size);
+
+ if (!descriptor_table.regions[i].bits.size)
+ continue;
+
+ if (descriptor_table.regions[i].bits.assign_tag ==
+ CRASHLOG_DESCRIPTOR_TABLE_TAG_SOC) {
+
+ if (cl_copy_data_from_sram(pmc_sram_base,
+ descriptor_table.regions[i].bits.offset,
+ descriptor_table.regions[i].bits.size,
+ soc_pmc_dest,
+ i,
+ pmc_sram)) {
+ soc_pmc_dest = (u32 *)((u32)soc_pmc_dest +
+ (descriptor_table.regions[i].bits.size
+ * sizeof(u32)));
+ } else {
+ pmc_crashLog_size -= descriptor_table.regions[i].bits.size *
+ sizeof(u32);
+ printk(BIOS_DEBUG, "PMC crashlog size adjusted to: 0x%x\n",
+ pmc_crashLog_size);
+ }
+ } else if (descriptor_table.regions[i].bits.assign_tag ==
+ CRASHLOG_DESCRIPTOR_TABLE_TAG_IOE) {
+ /*
+ * SOC PMC crashlog records contains information about IOE SRAM
+ * records as well. Calculate IOE records size while parsing SOC
+ * PME SRAM.
+ */
+ ioe_crashLog_size += descriptor_table.regions[i].bits.size * sizeof(u32);
+ }
+ }
+
+ pmc_crashLog_size -= ioe_crashLog_size;
+ update_new_pmc_crashlog_size(&pmc_crashLog_size);
+
+ if (ioe_crashLog_size)
+ m_ioe_crashLog_present = true;
+ else
+ goto pmc_send_re_arm_after_reset;
+
+ /* allocate memory for the IOE crashlog records to be copied */
+ unsigned long ioe_cl_cbmem_addr;
+
+ ioe_cl_cbmem_addr = (unsigned long) cbmem_add(CBMEM_ID_IOE_CRASHLOG,
+ ioe_crashLog_size);
+ if (!ioe_cl_cbmem_addr) {
+ printk(BIOS_ERR, "Unable to allocate CBMEM IOE crashLog entry.\n");
+ return;
+ }
+
+ memset((void *)ioe_cl_cbmem_addr, 0, ioe_crashLog_size);
+ ioe_pmc_dest = (u32 *)(uintptr_t) ioe_cl_cbmem_addr;
+
+ /* process crashlog records for IOE SRAM */
+ for (int i = 0; i < descriptor_table.numb_regions + 1; i++) {
+ printk(BIOS_DEBUG, "Region[0x%x].Tag=0x%x offset=0x%x, size=0x%x\n",
+ i,
+ descriptor_table.regions[i].bits.assign_tag,
+ descriptor_table.regions[i].bits.offset,
+ descriptor_table.regions[i].bits.size);
+
+ if (!descriptor_table.regions[i].bits.size)
+ continue;
+
+ if (descriptor_table.regions[i].bits.assign_tag ==
+ CRASHLOG_DESCRIPTOR_TABLE_TAG_IOE) {
+
+ if (cl_copy_data_from_sram(ioe_sram_base,
+ descriptor_table.regions[i].bits.offset,
+ descriptor_table.regions[i].bits.size,
+ ioe_pmc_dest,
+ i,
+ pmc_sram)) {
+ ioe_pmc_dest = (u32 *)((u32)ioe_pmc_dest +
+ (descriptor_table.regions[i].bits.size
+ * sizeof(u32)));
+ } else {
+
+ ioe_crashLog_size -= descriptor_table.regions[i].bits.size *
+ sizeof(u32);
+ printk(BIOS_DEBUG, "IOE crashlog size adjusted to: 0x%x\n",
+ ioe_crashLog_size);
+ }
+ }
+ }
+
+ update_new_ioe_crashlog_size(&ioe_crashLog_size);
+
+pmc_send_re_arm_after_reset:
+ /* when bit 7 of discov cmd resp is set -> bit 2 of size field */
+ cl_pmc_re_arm_after_reset();
+
+ /* Clear the SSRAM region after copying the error log */
+ cl_pmc_clear();
+}
+
+bool pmc_cl_discovery(void)
+{
+ u32 bar_addr = 0, desc_table_addr = 0;
+
+ const struct pmc_ipc_buffer req = { 0 };
+ struct pmc_ipc_buffer res;
+ uint32_t cmd_reg;
+ int r;
+
+ cmd_reg = pmc_make_ipc_cmd(PMC_IPC_CMD_CRASHLOG,
+ PMC_IPC_CMD_ID_CRASHLOG_DISCOVERY,
+ PMC_IPC_CMD_SIZE_SHIFT);
+ printk(BIOS_DEBUG, "cmd_reg from pmc_make_ipc_cmd %d in %s\n", cmd_reg, __func__);
+
+ r = pmc_send_ipc_cmd(cmd_reg, &req, &res);
+
+ if (r < 0) {
+ printk(BIOS_ERR, "pmc_send_ipc_cmd failed in %s\n", __func__);
+ return false;
+ }
+ discovery_buf.conv_val_64_bits = ((u64)res.buf[1] << 32) | res.buf[0];
+
+ if ((discovery_buf.conv_bits64.supported != 1) ||
+ (discovery_buf.conv_bits64.discov_mechanism == 0) ||
+ (discovery_buf.conv_bits64.crash_dis_sts == 1)) {
+ printk(BIOS_INFO, "PCH crashlog feature not supported.\n");
+ m_pmc_crashLog_support = false;
+ m_ioe_crashLog_support = false;
+ m_pmc_crashLog_size = 0;
+ m_ioe_crashLog_size = 0;
+ printk(BIOS_DEBUG, "discovery_buf supported: %d, mechanism: %d, CrashDisSts: %d\n",
+ discovery_buf.conv_bits64.supported,
+ discovery_buf.conv_bits64.discov_mechanism,
+ discovery_buf.conv_bits64.crash_dis_sts);
+ return false;
+ }
+
+ printk(BIOS_INFO, "PMC crashlog feature is supported.\n");
+ m_pmc_crashLog_support = true;
+
+ /* Program BAR 0 and enable command register memory space decoding */
+ bar_addr = get_sram_bar(PCI_DEVFN_SRAM);
+ if (bar_addr == 0) {
+ printk(BIOS_ERR, "PCH SRAM not available, crashlog feature can't be enabled.\n");
+ return false;
+ }
+
+ configure_sram(PCI_DEV_SRAM, bar_addr);
+
+ desc_table_addr = bar_addr + discovery_buf.conv_bits64.desc_tabl_offset;
+ m_pmc_crashLog_size = pmc_cl_gen_descriptor_table(desc_table_addr,
+ &descriptor_table);
+ printk(BIOS_DEBUG, "PMC CrashLog size in discovery mode: 0x%X\n",
+ m_pmc_crashLog_size);
+ m_pmc_crashLog_present = m_pmc_crashLog_size > 0;
+
+ return true;
+}
+
+u32 cl_get_cpu_bar_addr(void)
+{
+ u32 base_addr = 0;
+ if (cpu_cl_devsc_cap.discovery_data.fields.t_bir_q == TEL_DVSEC_TBIR_BAR0) {
+ base_addr = pci_read_config32(PCI_DEV_TELEMETRY, PCI_BASE_ADDRESS_0) &
+ ~PCI_BASE_ADDRESS_MEM_ATTR_MASK;
+ } else if (cpu_cl_devsc_cap.discovery_data.fields.t_bir_q == TEL_DVSEC_TBIR_BAR1) {
+ base_addr = pci_read_config32(PCI_DEV_TELEMETRY, PCI_BASE_ADDRESS_1) &
+ ~PCI_BASE_ADDRESS_MEM_ATTR_MASK;
+ } else {
+ printk(BIOS_ERR, "Invalid TEL_CFG_BAR value %d, discovery failure expected.\n",
+ cpu_cl_devsc_cap.discovery_data.fields.t_bir_q);
+ }
+
+ return base_addr;
+}
+
+u32 cl_get_cpu_tmp_bar(void)
+{
+ return get_sram_bar(PCI_DEVFN_SRAM);
+}
+
+bool cl_pmc_sram_has_mmio_access(void)
+{
+ if (pci_read_config16(PCI_DEV_SRAM, PCI_VENDOR_ID) == 0xFFFF) {
+ printk(BIOS_ERR, "PMC SSRAM PCI device disabled. Can be enabled in device tree.\n");
+ return false;
+ }
+
+ return true;
+}
+
+bool cl_ioe_sram_has_mmio_access(void)
+{
+ if (pci_read_config16(PCI_DEV_IOE_SRAM, PCI_VENDOR_ID) == 0xFFFF) {
+ printk(BIOS_ERR, "IOE SSRAM PCI device disabled. Can be enabled in device tree.\n");
+ return false;
+ }
+ return true;
+}
+
+static bool cpu_cl_get_capability(tel_crashlog_devsc_cap_t *cl_devsc_cap)
+{
+ cl_devsc_cap->cap_data.data = pci_read_config32(PCI_DEV_TELEMETRY,
+ TEL_DVSEC_OFFSET + TEL_DVSEC_PCIE_CAP_ID);
+ if (cl_devsc_cap->cap_data.fields.pcie_cap_id != TELEMETRY_EXTENDED_CAP_ID) {
+ printk(BIOS_DEBUG, "Read ID for Telemetry: 0x%x differs from expected: 0x%x\n",
+ cl_devsc_cap->cap_data.fields.pcie_cap_id, TELEMETRY_EXTENDED_CAP_ID);
+ return false;
+ }
+
+ /* walk through the entries until crashLog entry */
+ cl_devsc_cap->devsc_data.data_32[1] = pci_read_config32(PCI_DEV_TELEMETRY, TEL_DVSEV_ID);
+ int new_offset = 0;
+ while (cl_devsc_cap->devsc_data.fields.devsc_id != CRASHLOG_DVSEC_ID) {
+ if (cl_devsc_cap->cap_data.fields.next_cap_offset == 0
+ || cl_devsc_cap->cap_data.fields.next_cap_offset == 0xFFFF) {
+ printk(BIOS_DEBUG, "Read invalid pcie_cap_id value: 0x%x\n",
+ cl_devsc_cap->cap_data.fields.pcie_cap_id);
+ return false;
+ }
+ new_offset = cl_devsc_cap->cap_data.fields.next_cap_offset;
+ cl_devsc_cap->cap_data.data = pci_read_config32(PCI_DEV_TELEMETRY,
+ new_offset + TEL_DVSEC_PCIE_CAP_ID);
+ cl_devsc_cap->devsc_data.data_32[1] = pci_read_config32(PCI_DEV_TELEMETRY,
+ new_offset + TEL_DVSEV_ID);
+ }
+ cpu_crash_version = cl_devsc_cap->devsc_data.fields.devsc_ver;
+
+ cl_devsc_cap->discovery_data.data = pci_read_config32(PCI_DEV_TELEMETRY, new_offset
+ + TEL_DVSEV_DISCOVERY_TABLE_OFFSET);
+
+ return true;
+}
+
+static bool cpu_cl_gen_discovery_table(void)
+{
+ u32 bar_addr = 0, disc_tab_addr = 0;
+ bar_addr = cl_get_cpu_bar_addr();
+
+ if (!bar_addr)
+ return false;
+
+ disc_tab_addr = bar_addr +
+ cpu_cl_devsc_cap.discovery_data.fields.discovery_table_offset;
+ memset(&cpu_cl_disc_tab, 0, sizeof(cpu_crashlog_discovery_table_t));
+
+ printk(BIOS_DEBUG, "cpu discovery table offset: 0x%x\n",
+ cpu_cl_devsc_cap.discovery_data.fields.discovery_table_offset);
+
+ cpu_cl_disc_tab.header.data = ((u64)read32((u32 *)disc_tab_addr) +
+ ((u64)read32((u32 *)(disc_tab_addr + 4)) << 32));
+
+ printk(BIOS_DEBUG, "cpu_crashlog_discovery_table buffer count: 0x%x\n",
+ cpu_cl_disc_tab.header.fields.count);
+
+ int cur_offset = 0;
+ for (int i = 0; i < cpu_cl_disc_tab.header.fields.count; i++) {
+ cur_offset = 8 + 24*i;
+ cpu_cl_disc_tab.buffers[i].data = ((u64)read32((u32 *)(disc_tab_addr +
+ cur_offset)) + ((u64)read32((u32 *)
+ (disc_tab_addr + cur_offset + 4)) << 32));
+ printk(BIOS_DEBUG, "cpu_crashlog_discovery_table buffer: 0x%x size: "
+ "0x%x offset: 0x%x\n", i, cpu_cl_disc_tab.buffers[i].fields.size,
+ cpu_cl_disc_tab.buffers[i].fields.offset);
+ m_cpu_crashLog_size += cpu_cl_disc_tab.buffers[i].fields.size * sizeof(u32);
+ }
+
+ if (m_cpu_crashLog_size > 0)
+ m_cpu_crashLog_present = true;
+ else
+ m_cpu_crashLog_present = false;
+
+ return true;
+}
+
+bool cpu_cl_discovery(void)
+{
+ memset(&cpu_cl_devsc_cap, 0, sizeof(tel_crashlog_devsc_cap_t));
+
+ if (!cpu_cl_get_capability(&cpu_cl_devsc_cap)) {
+ printk(BIOS_ERR, "CPU crashlog capability not found.\n");
+ m_cpu_crashLog_support = false;
+ return false;
+ }
+
+ m_cpu_crashLog_support = true;
+
+ if (!cpu_cl_gen_discovery_table()) {
+ printk(BIOS_ERR, "CPU crashlog discovery table not valid.\n");
+ m_cpu_crashLog_present = false;
+ return false;
+ }
+
+ return true;
+}
+
+void reset_discovery_buffers(void)
+{
+ memset(&discovery_buf, 0, sizeof(pmc_ipc_discovery_buf_t));
+ memset(&descriptor_table, 0, sizeof(pmc_crashlog_desc_table_t));
+ memset(&cpu_cl_devsc_cap, 0, sizeof(tel_crashlog_devsc_cap_t));
+}
+
+int cl_get_total_data_size(void)
+{
+ printk(BIOS_DEBUG, "crashlog size:pmc-0x%x, ioe-pmc-0x%x cpu-0x%x\n",
+ m_pmc_crashLog_size, m_ioe_crashLog_size, m_cpu_crashLog_size);
+ return m_pmc_crashLog_size + m_cpu_crashLog_size + m_ioe_crashLog_size;
+}
+
+pmc_ipc_discovery_buf_t cl_get_pmc_discovery_buf(void)
+{
+ return discovery_buf;
+}
+
+pmc_crashlog_desc_table_t cl_get_pmc_descriptor_table(void)
+{
+ return descriptor_table;
+}
+
+int cl_get_pmc_record_size(void)
+{
+ return m_pmc_crashLog_size;
+}
+
+int cl_get_cpu_record_size(void)
+{
+ return m_cpu_crashLog_size;
+}
+
+int cl_get_ioe_record_size(void)
+{
+ return m_ioe_crashLog_size;
+}
+
+bool cl_cpu_data_present(void)
+{
+ return m_cpu_crashLog_present;
+}
+
+bool cl_pmc_data_present(void)
+{
+ return m_pmc_crashLog_present;
+}
+
+bool cl_ioe_data_present(void)
+{
+ return m_ioe_crashLog_present;
+}
+
+bool cpu_crashlog_support(void)
+{
+ return m_cpu_crashLog_support;
+}
+
+bool pmc_crashlog_support(void)
+{
+ return m_pmc_crashLog_support;
+}
+
+void update_new_pmc_crashlog_size(u32 *pmc_crash_size)
+{
+ m_pmc_crashLog_size = *pmc_crash_size;
+}
+
+void update_new_ioe_crashlog_size(u32 *ioe_crash_size)
+{
+ m_ioe_crashLog_size = *ioe_crash_size;
+}
+
+cpu_crashlog_discovery_table_t cl_get_cpu_discovery_table(void)
+{
+ return cpu_cl_disc_tab;
+}
+
+void update_new_cpu_crashlog_size(u32 *cpu_crash_size)
+{
+ m_cpu_crashLog_size = *cpu_crash_size;
+}
diff --git a/src/soc/intel/meteorlake/include/soc/crashlog.h b/src/soc/intel/meteorlake/include/soc/crashlog.h
new file mode 100644
index 0000000000..841492dabd
--- /dev/null
+++ b/src/soc/intel/meteorlake/include/soc/crashlog.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_METEORLAKE_CRASHLOG_H_
+#define _SOC_METEORLAKE_CRASHLOG_H_
+
+#include <types.h>
+
+/* DVSEC capability Registers */
+#define TEL_DVSEC_OFFSET 0x100
+#define TEL_DVSEC_PCIE_CAP_ID 0x0
+#define TEL_DVSEV_ID 0x8
+#define TEL_DVSEV_DISCOVERY_TABLE_OFFSET 0xC
+#define TELEMETRY_EXTENDED_CAP_ID 0x23
+#define CRASHLOG_DVSEC_ID 0x04
+#define TEL_DVSEC_TBIR_BAR0 0
+#define TEL_DVSEC_TBIR_BAR1 1
+
+/* CPU CrashLog MMIO Registers */
+#define CRASHLOG_MAILBOX_INTF_ADDRESS 0x6038
+
+#endif /* _SOC_METEORLAKE_CRASHLOG_H_ */
diff --git a/src/soc/intel/meteorlake/include/soc/pci_devs.h b/src/soc/intel/meteorlake/include/soc/pci_devs.h
index 1c4e9b266b..10d8bdec42 100644
--- a/src/soc/intel/meteorlake/include/soc/pci_devs.h
+++ b/src/soc/intel/meteorlake/include/soc/pci_devs.h
@@ -60,6 +60,10 @@
#define PCI_DEVFN_GNA _PCI_DEVFN(GNA, 0)
#define PCI_DEV_GNA _PCI_DEV(GNA, 0)
+#define PCI_DEV_SLOT_TELEMETRY 0x0a
+#define PCI_DEVFN_TELEMETRY _PCI_DEVFN(TELEMETRY, 0)
+#define PCI_DEV_TELEMETRY _PCI_DEV(TELEMETRY, 0)
+
#define PCI_DEV_SLOT_TCSS 0x0d
#define NUM_TCSS_DMA_FUNCTIONS 2
#define PCI_DEVFN_TCSS_DMA(x) _PCI_DEVFN(TCSS, ((x) + 2))
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 13:23:28 +0000