diff options
Diffstat (limited to 'include/sbi/sbi_scratch.h')
| -rw-r--r-- | include/sbi/sbi_scratch.h | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/include/sbi/sbi_scratch.h b/include/sbi/sbi_scratch.h index 8389ef3..70ab384 100644 --- a/include/sbi/sbi_scratch.h +++ b/include/sbi/sbi_scratch.h @@ -28,17 +28,24 @@ #define SBI_SCRATCH_PLATFORM_ADDR_OFFSET (6 * __SIZEOF_POINTER__) /** Offset of hartid_to_scratch member in sbi_scratch */ #define SBI_SCRATCH_HARTID_TO_SCRATCH_OFFSET (7 * __SIZEOF_POINTER__) -/** Offset of ipi_type member in sbi_scratch */ -#define SBI_SCRATCH_IPI_TYPE_OFFSET (8 * __SIZEOF_POINTER__) /** Offset of tmp0 member in sbi_scratch */ -#define SBI_SCRATCH_TMP0_OFFSET (9 * __SIZEOF_POINTER__) -/** Maximum size of sbi_scratch */ -#define SBI_SCRATCH_SIZE 256 +#define SBI_SCRATCH_TMP0_OFFSET (8 * __SIZEOF_POINTER__) + +/** sbi_ipi_data is located behind sbi_scratch. This struct is not packed. */ +/** Offset of ipi_type in sbi_ipi_data */ +#define SBI_IPI_DATA_IPI_TYPE_OFFSET (15 * __SIZEOF_POINTER__) + +/** Maximum size of sbi_scratch and sbi_ipi_data */ +#define SBI_SCRATCH_SIZE (32 * __SIZEOF_POINTER__) #ifndef __ASSEMBLY__ #include <sbi/sbi_types.h> +struct sbi_ipi_data { + unsigned long ipi_type; +}; + /** Representation of per-HART scratch space */ struct sbi_scratch { /** Start (or base) address of firmware linked to OpenSBI library */ @@ -57,8 +64,6 @@ struct sbi_scratch { unsigned long platform_addr; /** Address of HART ID to sbi_scratch conversion function */ unsigned long hartid_to_scratch; - /** IPI type (or flags) */ - unsigned long ipi_type; /** Temporary storage */ unsigned long tmp0; } __packed; @@ -71,6 +76,10 @@ struct sbi_scratch { #define sbi_scratch_thishart_arg1_ptr() \ ((void *)(sbi_scratch_thishart_ptr()->next_arg1)) +/** Get pointer to sbi_ipi_data from sbi_scratch */ +#define sbi_ipi_data_ptr(scratch) \ +((struct sbi_ipi_data *)(void*)scratch + SBI_IPI_DATA_IPI_TYPE_OFFSET) + #endif #endif |