starfive-tech/opensbi.git/include/sbi, branch master

include: sbi: Add SBI_ERR_DENIED_LOCKED

2025-02-19T16:40:59+00:00

Add SBI_ERR_DENIED_LOCKED and set it as the SBI_LAST_ERR which was wrongly set to SBI_ERR_BAD_RANGE. Signed-off-by: Clément Léger Reviewed-by: Anup Patel

lib: sbi: Fix non-root domain startup

2025-02-19T11:41:39+00:00

Currently, the sbi_sse_init() in cold boot path is called after sbi_domain_finalize() so boot HART of non-root domains will start before SSE cold boot init which can cause warm boot of such HARTs to crash in sbi_sse_init(). To address the above issue, factor-out the non-root domain startup from sbi_domain_finalize() function as a separate sbi_domain_startup() function which can be called after sbi_sse_init() in cold boot path. Fixes: 93f7d819fdeb ("lib: sbi: sse: allow adding new events") Signed-off-by: Anup Patel

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

2025-02-13T05:40:03+00:00

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

include: sbi: Align SBI trap registers to a nice boundary

2025-02-12T03:44:43+00:00

Align SBI_TRAP_CONTEXT_SIZE to a multiple of 16 bytes. If it is not aligned to 16 bytes for RV64, it can create performance problems. Aligning it correctly can fix the performance issues. Signed-off-by: Raj Vishwanathan Reviewed-by: Anup Patel

lib: sbi: sse: allow adding new events

2025-01-30T05:10:49+00:00

In order to allow events to be dynamically added, remove the existing static array of events and use a simply linked list of supported events. This allows us to move the cb_ops into this list and associated it with an event_id. Drivers can now register cb_ops before bringing up the sse core to handle additional events (platform ones for instance). sbi_sse_init() now allocates as many events as present in the linked list. Events can now be added with sbi_sse_add_event() which allows to add new supported events with some callback operations if any. If an event is not to be supported, then sbi_sse_add_event() should not be called. This approach currently consider that local events are to be supported on all harts (ie, they all support the same ISA or dependencies). If per-hart event availability needs to be supported, then, an is_supported() callback could be added later and called for each hart. Signed-off-by: Clément Léger Reviewed-by: Samuel Holland

include: lib: add a simple singly linked list implementation

2025-01-30T05:05:46+00:00

Add a simple singly linked list implementation when double linked list are not needed. This allows to easily have statically defined linked list that can be extended at runtime. Signed-off-by: Clément Léger Reviewed-by: Anup Patel

lib: sbi: move sbi_double_trap_handler() to a dedicated header

2025-01-30T05:02:18+00:00

We will add new functions to sbi_double_trap.c in order to register an SSE event, split this to a header as part of preparation work. Signed-off-by: Clément Léger Reviewed-by: Anup Patel

lib: sbi: pmu: fix usage of sbi_pmu_irq_bit()

2025-01-30T05:00:45+00:00

While sbi_pmu_irq_bit() was used to delegate irq to S-mode, LCOFIP usage was still hardcoded in various places. This led to change the returned value of sbi_pmu_irq_bit() to be a bit number rather than a bit mask since it returns an 'int' and we need to obtain the bit number itself to handle it in the IRQs handlers. Add a similar function to return the irq mask which can also be used where the mask is required rather than the bit itself. Signed-off-by: Clément Léger Reviewed-by: Samuel Holland Reviewed-by: Atish Patra

include: Bump-up version to 1.6

2024-12-24T09:58:18+00:00

Update the OpenSBI version to 1.6 as part of release preparation. Signed-off-by: Anup Patel Signed-off-by: Anup Patel

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22T05:46:13+00:00

Add boot-time prints for list of available standard and experimental SBI extensions. Signed-off-by: Anup Patel