Martin Åberg fbd9dd4526 SPARC: Add support for single-vector trapping (SVT) ... This adds support for the single-vector trapping (SVT) model, defined by SPARC-V8 Embedded (V8E) Architecture Specification. SVT is available in most LEON processors. With single-vector trapping enabled, all traps are vectored through a single trap vector (TBR.A) rather than one 16-byte entry for each trap type. This improves memory utilization because the full 4 KiB trap table is not needed. This implementation uses a two-level of lookup table to find the handler for the trap type (0..255). - Execution time is constant. - Condition flags are preserved. - The implementation footprint is 60 bytes .text and 284 bytes .rodata. For comparison, a non-SVT table is always 4096 .text. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>		2024-11-25 21:53:55 +01:00
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offsets	arch: remove the use of z_arch_esf_t completely from internal	2024-06-04 14:02:51 -05:00
CMakeLists.txt	SPARC: Add support for single-vector trapping (SVT)	2024-11-25 21:53:55 +01:00
fatal.c	arch: define struct arch_esf and deprecate z_arch_esf_t	2024-06-04 14:02:51 -05:00
fault_trap.S	arch: remove the use of z_arch_esf_t completely from internal	2024-06-04 14:02:51 -05:00
interrupt_trap.S
irq_manage.c
irq_offload.c	arch: initialize irq_offload during boot, do not use SYS_INIT	2024-09-17 20:05:22 -04:00
prep_c.c	cache: add new interface arch_cache_init() for initializing cache	2024-09-17 20:05:22 -04:00
reset_trap.S	SPARC: Add support for single-vector trapping (SVT)	2024-11-25 21:53:55 +01:00
stack_offsets.h
sw_trap_set_pil.S
switch.S
thread.c	arch: deprecate _current	2024-11-23 20:12:24 -05:00
tls.c
trap_table_mvt.S
trap_table_svt.S	SPARC: Add support for single-vector trapping (SVT)	2024-11-25 21:53:55 +01:00
window_trap.S