| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <cpu/x86/msr.h> |
| #include <soc/smi.h> |
| #include <amdblocks/acpimmio.h> |
| #include <amdblocks/psp.h> |
| |
| #define PSP_MAILBOX_OFFSET 0x10570 |
| #define MSR_CU_CBBCFG 0xc00110a2 |
| |
| void *soc_get_mbox_address(void) |
| { |
| uintptr_t psp_mmio; |
| |
| psp_mmio = rdmsr(MSR_CU_CBBCFG).lo; |
| if (psp_mmio == 0xffffffff) { |
| printk(BIOS_WARNING, "PSP: MSR_CU_CBBCFG uninitialized\n"); |
| return 0; |
| } |
| |
| return (void *)(psp_mmio + PSP_MAILBOX_OFFSET); |
| } |
| |
| void soc_fill_smm_trig_info(struct smm_trigger_info *trig) |
| { |
| if (!trig) |
| return; |
| |
| trig->address = (uintptr_t)acpimmio_smi + SMI_REG_SMITRIG0; |
| trig->address_type = SMM_TRIGGER_MEM; |
| trig->value_width = SMM_TRIGGER_DWORD; |
| trig->value_and_mask = ~SMITRIG0_PSP; |
| trig->value_or_mask = SMITRIG0_PSP; |
| } |
| |
| void soc_fill_smm_reg_info(struct smm_register_info *reg) |
| { |
| if (!reg) |
| return; |
| |
| reg->smi_enb.address = (uintptr_t)acpimmio_smi + SMI_REG_SMITRIG0; |
| reg->smi_enb.address_type = SMM_TRIGGER_MEM; |
| reg->smi_enb.value_width = SMM_TRIGGER_DWORD; |
| reg->smi_enb.reg_bit_mask = SMITRG0_SMIENB; |
| reg->smi_enb.expect_value = 0; |
| |
| reg->eos.address = (uintptr_t)acpimmio_smi + SMI_REG_SMITRIG0; |
| reg->eos.address_type = SMM_TRIGGER_MEM; |
| reg->eos.value_width = SMM_TRIGGER_DWORD; |
| reg->eos.reg_bit_mask = SMITRG0_EOS; |
| reg->eos.expect_value = SMITRG0_EOS; |
| |
| reg->psp_smi_en.address = (uintptr_t)acpimmio_smi + SMI_REG_CONTROL0; |
| reg->psp_smi_en.address += sizeof(uint32_t) * SMITYPE_PSP / 16; |
| reg->psp_smi_en.address_type = SMM_TRIGGER_MEM; |
| reg->psp_smi_en.value_width = SMM_TRIGGER_DWORD; |
| reg->psp_smi_en.reg_bit_mask = SMI_MODE_MASK << (2 * SMITYPE_PSP % 16); |
| reg->psp_smi_en.expect_value = SMI_MODE_SMI << (2 * SMITYPE_PSP % 16); |
| } |