Felix Held | ee2a365 | 2021-02-09 23:43:17 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 3 | #include <acpi/acpi.h> |
| 4 | #include <amdblocks/acpi.h> |
| 5 | #include <amdblocks/acpimmio.h> |
Felix Held | d51fd30 | 2021-02-11 05:02:27 +0100 | [diff] [blame] | 6 | #include <amdblocks/psp.h> |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 7 | #include <amdblocks/smi.h> |
Felix Held | a3a66b6 | 2021-02-10 03:29:48 +0100 | [diff] [blame] | 8 | #include <amdblocks/smm.h> |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 9 | #include <arch/hlt.h> |
| 10 | #include <arch/io.h> |
| 11 | #include <console/console.h> |
Felix Held | 913dcf6 | 2021-03-03 19:03:37 +0100 | [diff] [blame^] | 12 | #include <cpu/x86/cache.h> |
Felix Held | 3c4fd70 | 2021-02-10 03:47:38 +0100 | [diff] [blame] | 13 | #include <cpu/x86/smm.h> |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 14 | #include <soc/smi.h> |
Felix Held | 913dcf6 | 2021-03-03 19:03:37 +0100 | [diff] [blame^] | 15 | #include <soc/smu.h> |
| 16 | #include <soc/southbridge.h> |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 17 | #include <types.h> |
| 18 | |
| 19 | static void fch_apmc_smi_handler(void) |
| 20 | { |
| 21 | const uint8_t cmd = inb(pm_acpi_smi_cmd_port()); |
| 22 | |
| 23 | switch (cmd) { |
| 24 | case APM_CNT_ACPI_ENABLE: |
| 25 | acpi_enable_sci(); |
| 26 | break; |
| 27 | case APM_CNT_ACPI_DISABLE: |
| 28 | acpi_disable_sci(); |
Felix Held | d51fd30 | 2021-02-11 05:02:27 +0100 | [diff] [blame] | 29 | break; |
| 30 | case APM_CNT_SMMINFO: |
| 31 | psp_notify_smm(); |
| 32 | break; |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 33 | } |
| 34 | |
| 35 | mainboard_smi_apmc(cmd); |
| 36 | } |
| 37 | |
| 38 | static void fch_slp_typ_handler(void) |
| 39 | { |
Felix Held | 913dcf6 | 2021-03-03 19:03:37 +0100 | [diff] [blame^] | 40 | uint32_t pci_ctrl; |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 41 | uint16_t pm1cnt; |
Felix Held | 913dcf6 | 2021-03-03 19:03:37 +0100 | [diff] [blame^] | 42 | uint8_t slp_typ, rst_ctrl; |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 43 | |
| 44 | /* Figure out SLP_TYP */ |
| 45 | pm1cnt = acpi_read16(MMIO_ACPI_PM1_CNT_BLK); |
| 46 | printk(BIOS_SPEW, "SMI#: SLP = 0x%04x\n", pm1cnt); |
| 47 | slp_typ = acpi_sleep_from_pm1(pm1cnt); |
| 48 | |
| 49 | /* Do any mainboard sleep handling */ |
| 50 | mainboard_smi_sleep(slp_typ); |
| 51 | |
| 52 | switch (slp_typ) { |
| 53 | case ACPI_S0: |
| 54 | printk(BIOS_DEBUG, "SMI#: Entering S0 (On)\n"); |
| 55 | break; |
| 56 | case ACPI_S3: |
| 57 | printk(BIOS_DEBUG, "SMI#: Entering S3 (Suspend-To-RAM)\n"); |
| 58 | break; |
| 59 | case ACPI_S4: |
| 60 | printk(BIOS_DEBUG, "SMI#: Entering S4 (Suspend-To-Disk)\n"); |
| 61 | break; |
| 62 | case ACPI_S5: |
| 63 | printk(BIOS_DEBUG, "SMI#: Entering S5 (Soft Power off)\n"); |
| 64 | break; |
| 65 | default: |
| 66 | printk(BIOS_DEBUG, "SMI#: ERROR: SLP_TYP reserved\n"); |
| 67 | break; |
| 68 | } |
| 69 | |
| 70 | if (slp_typ >= ACPI_S3) { |
Felix Held | 913dcf6 | 2021-03-03 19:03:37 +0100 | [diff] [blame^] | 71 | wbinvd(); |
| 72 | |
| 73 | clear_all_smi_status(); |
| 74 | |
| 75 | /* Do not send SMI before AcpiPm1CntBlkx00[SlpTyp] */ |
| 76 | pci_ctrl = pm_read32(PM_PCI_CTRL); |
| 77 | pci_ctrl &= ~FORCE_SLPSTATE_RETRY; |
| 78 | pm_write32(PM_PCI_CTRL, pci_ctrl); |
| 79 | |
| 80 | /* Enable SlpTyp */ |
| 81 | rst_ctrl = pm_read8(PM_RST_CTRL1); |
| 82 | rst_ctrl |= SLPTYPE_CONTROL_EN; |
| 83 | pm_write8(PM_RST_CTRL1, rst_ctrl); |
| 84 | |
| 85 | if (slp_typ == ACPI_S3) |
| 86 | psp_notify_sx_info(ACPI_S3); |
| 87 | |
| 88 | smu_sx_entry(); /* Leave SlpTypeEn clear, SMU will set */ |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 89 | printk(BIOS_ERR, "Error: System did not go to sleep\n"); |
| 90 | hlt(); |
| 91 | } |
| 92 | } |
Felix Held | 3c4fd70 | 2021-02-10 03:47:38 +0100 | [diff] [blame] | 93 | |
| 94 | int southbridge_io_trap_handler(int smif) |
| 95 | { |
| 96 | return 0; |
| 97 | } |
Felix Held | ee2a365 | 2021-02-09 23:43:17 +0100 | [diff] [blame] | 98 | |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 99 | /* |
| 100 | * Table of functions supported in the SMI handler. Note that SMI source setup |
| 101 | * in fch.c is unrelated to this list. |
| 102 | */ |
| 103 | static const struct smi_sources_t smi_sources[] = { |
| 104 | { .type = SMITYPE_SMI_CMD_PORT, .handler = fch_apmc_smi_handler }, |
| 105 | { .type = SMITYPE_SLP_TYP, .handler = fch_slp_typ_handler}, |
| 106 | }; |
| 107 | |
Felix Held | a3a66b6 | 2021-02-10 03:29:48 +0100 | [diff] [blame] | 108 | void *get_smi_source_handler(int source) |
Felix Held | ee2a365 | 2021-02-09 23:43:17 +0100 | [diff] [blame] | 109 | { |
Felix Held | be35a3a | 2021-02-10 16:34:31 +0100 | [diff] [blame] | 110 | size_t i; |
| 111 | |
| 112 | for (i = 0 ; i < ARRAY_SIZE(smi_sources) ; i++) |
| 113 | if (smi_sources[i].type == source) |
| 114 | return smi_sources[i].handler; |
| 115 | |
Felix Held | a3a66b6 | 2021-02-10 03:29:48 +0100 | [diff] [blame] | 116 | return NULL; |
Felix Held | ee2a365 | 2021-02-09 23:43:17 +0100 | [diff] [blame] | 117 | } |