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

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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 <Raj.Vishwanathan@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Raj Vishwanathan
2025-02-11 13:46:39 -08:00
committed by Anup Patel
parent 3f25380d85
commit 4f12f8b02f
1 changed files with 5 additions and 2 deletions
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7
include/sbi/sbi_trap.h
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@@ -112,10 +112,13 @@
/** Size (in bytes) of sbi_trap_info */
#define SBI_TRAP_INFO_SIZE SBI_TRAP_INFO_OFFSET(last)
#define STACK_BOUNDARY 16
#define ALIGN_TO_BOUNDARY(x, a) (((x) + (a) - 1) & ~((a) - 1))
/** Size (in bytes) of sbi_trap_context */
#define SBI_TRAP_CONTEXT_SIZE (SBI_TRAP_REGS_SIZE + \
#define SBI_TRAP_CONTEXT_SIZE ALIGN_TO_BOUNDARY((SBI_TRAP_REGS_SIZE + \
SBI_TRAP_INFO_SIZE + \
__SIZEOF_POINTER__)
__SIZEOF_POINTER__), STACK_BOUNDARY)
#ifndef __ASSEMBLER__