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lib: sbi: Update MPXY framework and SBI extension as per latest spec

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The latest SBI 3.0 spec defines a new sbi_mpxy_get_shmem_size()
function and simplifies sbi_mpxy_set_shmem() function so update
the MPXY framework and SBI extension accordingly.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
This commit is contained in:
Anup Patel
2025-01-21 17:36:29 +05:30
committed by Anup Patel
parent 61abd975f2
commit ec09918426
4 changed files with 55 additions and 41 deletions
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15
include/sbi/sbi_ecall_interface.h
View File

@@ -423,13 +423,14 @@ enum sbi_sse_state {
#define SBI_SSE_EVENT_PLATFORM_BIT (1 << 14)
/* SBI function IDs for MPXY extension */
#define SBI_EXT_MPXY_SET_SHMEM 0x0
#define SBI_EXT_MPXY_GET_CHANNEL_IDS 0x1
#define SBI_EXT_MPXY_READ_ATTRS 0x2
#define SBI_EXT_MPXY_WRITE_ATTRS 0x3
#define SBI_EXT_MPXY_SEND_MSG_WITH_RESP 0x4
#define SBI_EXT_MPXY_SEND_MSG_NO_RESP 0x5
#define SBI_EXT_MPXY_GET_NOTIFICATION_EVENTS 0x6
#define SBI_EXT_MPXY_GET_SHMEM_SIZE 0x0
#define SBI_EXT_MPXY_SET_SHMEM 0x1
#define SBI_EXT_MPXY_GET_CHANNEL_IDS 0x2
#define SBI_EXT_MPXY_READ_ATTRS 0x3
#define SBI_EXT_MPXY_WRITE_ATTRS 0x4
#define SBI_EXT_MPXY_SEND_MSG_WITH_RESP 0x5
#define SBI_EXT_MPXY_SEND_MSG_WITHOUT_RESP 0x6
#define SBI_EXT_MPXY_GET_NOTIFICATION_EVENTS 0x7
/* SBI base specification related macros */
#define SBI_SPEC_VERSION_MAJOR_OFFSET 24

12
include/sbi/sbi_mpxy.h
View File

@@ -153,11 +153,13 @@ int sbi_mpxy_init(struct sbi_scratch *scratch);
/** Check if some Message proxy channel is available */
bool sbi_mpxy_channel_available(void);
/** Set Message proxy shared memory on the calling HART */
int sbi_mpxy_set_shmem(unsigned long shmem_size,
unsigned long shmem_phys_lo,
unsigned long shmem_phys_hi,
unsigned long flags);
/** Get message proxy shared memory size */
unsigned long sbi_mpxy_get_shmem_size(void);
/** Set message proxy shared memory on the calling HART */
int sbi_mpxy_set_shmem(unsigned long shmem_phys_lo,
unsigned long shmem_phys_hi,
unsigned long flags);
/** Get channel IDs list */
int sbi_mpxy_get_channel_ids(u32 start_index);