[rtems commit] riscv: Make some CPU port defines visible to asm

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    71af1a4bb28c013847bd2810178ad77857f9f614
Changeset: http://git.rtems.org/rtems/commit/?id=71af1a4bb28c013847bd2810178ad77857f9f614

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Wed Jun 27 12:17:21 2018 +0200

riscv: Make some CPU port defines visible to asm

Move SREG and LREG assembler defines to <rtems/score/asm.h>.

Update #3433.

---

 cpukit/score/cpu/riscv/include/rtems/asm.h       | 14 +++++
 cpukit/score/cpu/riscv/include/rtems/score/cpu.h | 72 ++++++++++++------------
 2 files changed, 49 insertions(+), 37 deletions(-)

diff --git a/cpukit/score/cpu/riscv/include/rtems/asm.h b/cpukit/score/cpu/riscv/include/rtems/asm.h
index 55fcb80..0240913 100644
--- a/cpukit/score/cpu/riscv/include/rtems/asm.h
+++ b/cpukit/score/cpu/riscv/include/rtems/asm.h
@@ -117,6 +117,20 @@
 #define EXTERN(sym)    .extern SYM (sym)
 #define TYPE_FUNC(sym) .type SYM (sym), %function
 
+#if __riscv_xlen == 32
+
+#define LREG lw
+
+#define SREG sw
+
+#elif __riscv_xlen == 64
+
+#define LREG ld
+
+#define SREG sd
+
+#endif /* __riscv_xlen */
+
 .macro GET_SELF_CPU_CONTROL REG
 #ifdef RTEMS_SMP
 	csrr	\REG, mscratch
diff --git a/cpukit/score/cpu/riscv/include/rtems/score/cpu.h b/cpukit/score/cpu/riscv/include/rtems/score/cpu.h
index 1329b3e..29ed593 100644
--- a/cpukit/score/cpu/riscv/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/riscv/include/rtems/score/cpu.h
@@ -64,6 +64,40 @@ extern "C" {
 #define CPU_LITTLE_ENDIAN                        TRUE
 #define CPU_MODES_INTERRUPT_MASK   0x0000000000000001
 
+#define CPU_CONTEXT_FP_SIZE  0
+
+#define CPU_PER_CPU_CONTROL_SIZE 0
+
+#define CPU_CACHE_LINE_BYTES 64
+
+#if __riscv_xlen == 32
+
+#define CPU_SIZEOF_POINTER 4
+
+#define CPU_STACK_MINIMUM_SIZE 4096
+
+#define CPU_EXCEPTION_FRAME_SIZE 128
+
+#elif __riscv_xlen == 64
+
+#define CPU_SIZEOF_POINTER 8
+
+#define CPU_STACK_MINIMUM_SIZE 8192
+
+#define CPU_EXCEPTION_FRAME_SIZE 256
+
+#endif /* __riscv_xlen */
+
+#define CPU_ALIGNMENT 8
+
+#define CPU_HEAP_ALIGNMENT CPU_ALIGNMENT
+
+#define CPU_PARTITION_ALIGNMENT CPU_ALIGNMENT
+
+#define CPU_STACK_ALIGNMENT 16
+
+#define CPU_INTERRUPT_STACK_ALIGNMENT CPU_CACHE_LINE_BYTES
+
 /*
  *  Processor defined structures required for cpukit/score.
  */
@@ -88,25 +122,11 @@ typedef struct {
   double  some_float_register;
 } Context_Control_fp;
 
-#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
-#else
-#define CPU_STACK_MINIMUM_SIZE  4096 * 2
-#endif
-#define CPU_ALIGNMENT 8
-#define CPU_PROVIDES_ISR_IS_IN_PROGRESS FALSE
-#define CPU_HEAP_ALIGNMENT         CPU_ALIGNMENT
-#define CPU_PARTITION_ALIGNMENT    CPU_ALIGNMENT
-
-#define CPU_STACK_ALIGNMENT 16
 
-#define CPU_INTERRUPT_STACK_ALIGNMENT CPU_CACHE_LINE_BYTES
+#define CPU_PROVIDES_ISR_IS_IN_PROGRESS FALSE
 
 #define _CPU_Initialize_vectors()
 
@@ -230,29 +250,7 @@ extern void _CPU_Fatal_halt(uint32_t source, uint32_t error) RTEMS_NO_RETURN;
 typedef struct {
   /* There is no CPU specific per-CPU state */
 } CPU_Per_CPU_control;
-#endif /* ASM */
 
-#if __riscv_xlen == 32
-#define CPU_SIZEOF_POINTER 4
-
-/* 32-bit load/store instructions */
-#define LREG lw
-#define SREG sw
-
-#define CPU_EXCEPTION_FRAME_SIZE 128
-#else /* xlen = 64 */
-#define CPU_SIZEOF_POINTER 8
-
-/* 64-bit load/store instructions */
-#define LREG ld
-#define SREG sd
-
-#define CPU_EXCEPTION_FRAME_SIZE 256
-#endif
-
-#define CPU_PER_CPU_CONTROL_SIZE 0
-
-#ifndef ASM
 typedef uint16_t Priority_bit_map_Word;
 
 typedef struct {