psp_smm_gen2.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <soc/smi.h>
#include <amdblocks/acpimmio.h>
#include <amdblocks/psp.h>
#include <amdblocks/smi.h>
 
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);
}