src/soc/amd/common/block/acpi/elog.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <amdblocks/acpi.h>
   4 #include <amdblocks/xhci.h>
   5 #include <elog.h>
   6 #include <soc/southbridge.h>
   7
   8 static void elog_pm1_status(const struct acpi_pm_gpe_state *state)
   9 {
  10         uint16_t pm1_sts = state->pm1_sts;
  11
  12         if (pm1_sts & WAK_STS)
  13                 elog_add_event_byte(ELOG_TYPE_ACPI_WAKE, state->previous_sx_state);
  14
  15         if (pm1_sts & PWRBTN_STS)
  16                 elog_add_event_wake(ELOG_WAKE_SOURCE_PWRBTN, 0);
  17
  18         if (pm1_sts & RTC_STS)
  19                 elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0);
  20
  21         if (pm1_sts & PCIEXPWAK_STS)
  22                 elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0);
  23 }
  24
  25 static void elog_gpe_events(const struct acpi_pm_gpe_state *state)
  26 {
  27         int i;
  28         uint32_t valid_gpe = state->gpe0_sts & state->gpe0_en;
  29
  30         if (!ENV_SMM)
  31                 return;
  32
  33         for (i = 0; i <= 31; i++) {
  34                 if (valid_gpe & (1U << i)) {
  35                         elog_add_event_wake(ELOG_WAKE_SOURCE_GPE, i);
  36
  37                         if (CONFIG(SOC_AMD_COMMON_BLOCK_XHCI_ELOG) && i == XHCI_GEVENT)
  38                                 soc_xhci_log_wake_events();
  39                 }
  40         }
  41 }
  42
  43 void acpi_log_events(const struct chipset_power_state *ps)
  44 {
  45         elog_pm1_status(&ps->gpe_state);
  46         elog_gpe_events(&ps->gpe_state);
  47 }