From c8df844cf3bddde0221614843c97cb6c950cdba9 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 19 Jun 2018 14:59:51 +0200 Subject: score: Add CPU_INTERRUPT_STACK_ALIGNMENT Add CPU port define for the interrupt stack alignment. The alignment should take the stack ABI and the cache line size into account. Update #3459. --- cpukit/score/cpu/riscv/include/rtems/score/cpu.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'cpukit/score/cpu/riscv/include/rtems') diff --git a/cpukit/score/cpu/riscv/include/rtems/score/cpu.h b/cpukit/score/cpu/riscv/include/rtems/score/cpu.h index 663dd090f2..2b3b60937e 100644 --- a/cpukit/score/cpu/riscv/include/rtems/score/cpu.h +++ b/cpukit/score/cpu/riscv/include/rtems/score/cpu.h @@ -137,6 +137,8 @@ typedef Context_Control CPU_Interrupt_frame; #define CPU_CONTEXT_FP_SIZE 0 Context_Control_fp _CPU_Null_fp_context; +#define CPU_CACHE_LINE_BYTES 64 + #define CPU_MPCI_RECEIVE_SERVER_EXTRA_STACK 0 #if __riscv_xlen == 32 #define CPU_STACK_MINIMUM_SIZE 4096 @@ -148,6 +150,9 @@ Context_Control_fp _CPU_Null_fp_context; #define CPU_HEAP_ALIGNMENT CPU_ALIGNMENT #define CPU_PARTITION_ALIGNMENT CPU_ALIGNMENT #define CPU_STACK_ALIGNMENT 8 + +#define CPU_INTERRUPT_STACK_ALIGNMENT CPU_CACHE_LINE_BYTES + #define _CPU_Initialize_vectors() /* -- cgit v1.2.3