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/* SPDX-License-Identifier: GPL-2.0-only */
/* TODO: Check if this is still correct */
#ifndef AMD_SABRINA_PSP_TRANSFER_H
#define AMD_SABRINA_PSP_TRANSFER_H
# if (CONFIG_CMOS_RECOVERY_BYTE != 0)
# define CMOS_RECOVERY_BYTE CONFIG_CMOS_RECOVERY_BYTE
# elif CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)
# error "Must set CONFIG_CMOS_RECOVERY_BYTE"
# endif
#define CMOS_RECOVERY_MAGIC_VAL 0x96
#define TRANSFER_INFO_SIZE 64
#define TIMESTAMP_BUFFER_SIZE 0x200
#define TRANSFER_MAGIC_VAL 0x50544953
/* Bit definitions for the psp_info field in the PSP transfer_info_struct */
#define PSP_INFO_PRODUCTION_MODE 0x00000001UL
#define PSP_INFO_PRODUCTION_SILICON 0x00000002UL
#define PSP_INFO_VALID 0x80000000UL
/* Area for things that would cause errors in a linker script */
#if !defined(__ASSEMBLER__)
#include <stdint.h>
struct transfer_info_struct {
uint32_t magic_val; /* Identifier */
uint32_t struct_bytes; /* Size of this structure */
uint32_t buffer_size; /* Size of the transfer buffer area */
/* Offsets from start of transfer buffer */
uint32_t workbuf_offset;
uint32_t console_offset;
uint32_t timestamp_offset;
uint32_t fmap_offset;
uint32_t unused1[5];
/* Fields reserved for the PSP */
uint64_t timestamp; /* Offset 0x30 */
uint32_t psp_unused; /* Offset 0x38 */
uint32_t psp_info; /* Offset 0x3C */
};
_Static_assert(sizeof(struct transfer_info_struct) == TRANSFER_INFO_SIZE,
"TRANSFER_INFO_SIZE is incorrect");
/* Make sure the PSP transferred information over to x86 side. */
int transfer_buffer_valid(const struct transfer_info_struct *ptr);
/* Verify vboot work buffer is valid in transfer buffer */
void verify_psp_transfer_buf(void);
/* Display the transfer block's PSP_info data */
void show_psp_transfer_info(void);
/* Replays the pre-x86 cbmem console into the x86 cbmem console */
void replay_transfer_buffer_cbmemc(void);
/* Called by bootblock_c_entry in the VBOOT_STARTS_BEFORE_BOOTBLOCK case */
void boot_with_psp_timestamp(uint64_t base_timestamp);
#endif
#endif /* AMD_SABRINA_PSP_TRANSFER_H */
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