board/arch_fpu*: move arch_[get|cmp]fpu to common arch

rename the arch api:
arch_getfpu  -> up_saveusercontext
arch_cmpfpu  -> up_cmpfpu

Signed-off-by: chao.an <anchao@xiaomi.com>

arch/arm/include/armv7-m/irq_cmnvector.h

@@ -133,6 +133,8 @@
 #define XCPTCONTEXT_REGS    (HW_XCPT_REGS + SW_XCPT_REGS)
 #define XCPTCONTEXT_SIZE    (4 * XCPTCONTEXT_REGS)
 
+#define FPU_CONTEXT_REGS    SW_FPU_REGS
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/

arch/arm/include/armv7-m/irq_lazyfpu.h

@@ -151,6 +151,8 @@
 #define XCPTCONTEXT_REGS    (HW_XCPT_REGS + SW_XCPT_REGS)
 #define XCPTCONTEXT_SIZE    (HW_XCPT_SIZE + SW_XCPT_SIZE)
 
+#define FPU_CONTEXT_REGS    SW_FPU_REGS
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/

arch/arm/include/armv8-m/irq_cmnvector.h

@@ -139,6 +139,8 @@
 #define XCPTCONTEXT_REGS    (HW_XCPT_REGS + SW_XCPT_REGS)
 #define XCPTCONTEXT_SIZE    (4 * XCPTCONTEXT_REGS)
 
+#define FPU_CONTEXT_REGS    SW_FPU_REGS
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/

arch/arm/include/armv8-m/irq_lazyfpu.h

@@ -157,6 +157,8 @@
 #define XCPTCONTEXT_REGS    (HW_XCPT_REGS + SW_XCPT_REGS)
 #define XCPTCONTEXT_SIZE    (HW_XCPT_SIZE + SW_XCPT_SIZE)
 
+#define FPU_CONTEXT_REGS    SW_FPU_REGS
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/

arch/arm/src/a1x/Make.defs

@@ -105,6 +105,7 @@ CMN_CSRCS += arm_cache.c
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_savefpu.S arm_restorefpu.S
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_STACK_COLORATION),y)

arch/arm/src/am335x/Make.defs

@@ -101,6 +101,7 @@ CMN_CSRCS += arm_cache.c
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_savefpu.S arm_restorefpu.S
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_STACK_COLORATION),y)

arch/arm/src/common/arm_fpucmp.c

@@ -0,0 +1,59 @@
+/****************************************************************************
+ * arch/arm/src/common/arm_fpucmp.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <nuttx/irq.h>
+
+#include "arm_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_FPU
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_fpucmp
+ *
+ * Description:
+ *   compare FPU areas from thread context
+ *
+ ****************************************************************************/
+
+bool up_fpucmp(const void *saveregs1, const void *saveregs2)
+{
+  const uint32_t *regs1 = saveregs1;
+  const uint32_t *regs2 = saveregs2;
+
+  return memcmp(&regs1[REG_S0],
+                &regs2[REG_S0], (4 * FPU_CONTEXT_REGS)) == 0;
+}
+#endif /* CONFIG_ARCH_FPU */

arch/arm/src/cxd56xx/Make.defs

@@ -63,6 +63,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARMV7M_ITMSYSLOG),y)

arch/arm/src/efm32/Make.defs

@@ -59,6 +59,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARMV7M_ITMSYSLOG),y)

arch/arm/src/eoss3/Make.defs

@@ -58,6 +58,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 CHIP_CSRCS  = eoss3_start.c eoss3_gpio.c eoss3_lowputc.c eoss3_clockconfig.c

arch/arm/src/imx6/Make.defs

@@ -125,6 +125,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_savefpu.S arm_restorefpu.S
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_STACK_COLORATION),y)

arch/arm/src/imxrt/Make.defs

@@ -73,6 +73,7 @@ CMN_CSRCS += arm_cache.c
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 # Required i.MX RT files

arch/arm/src/kinetis/Make.defs

@@ -77,6 +77,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARMV7M_ITMSYSLOG),y)

arch/arm/src/lpc17xx_40xx/Make.defs

@@ -75,6 +75,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 # Required LPC17xx files

arch/arm/src/lpc43xx/Make.defs

@@ -63,6 +63,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 CHIP_CSRCS  = lpc43_allocateheap.c lpc43_cgu.c lpc43_clrpend.c lpc43_gpio.c

arch/arm/src/lpc54xx/Make.defs

@@ -63,6 +63,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 CHIP_CSRCS  = lpc54_start.c lpc54_clockconfig.c lpc54_irq.c lpc54_clrpend.c

arch/arm/src/max326xx/Make.defs

@@ -61,6 +61,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 # Common MAX326XX Source Files

arch/arm/src/nrf52/Make.defs

@@ -71,6 +71,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 CHIP_CSRCS  = nrf52_start.c nrf52_clockconfig.c nrf52_irq.c nrf52_utils.c

arch/arm/src/s32k1xx/Make.defs

@@ -40,6 +40,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 # Source files common to all S32K1xx chip families.

arch/arm/src/sam34/Make.defs

@@ -67,6 +67,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_SCHED_BACKTRACE),y)

arch/arm/src/sama5/Make.defs

@@ -107,6 +107,7 @@ CMN_CSRCS += arm_cache.c
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_savefpu.S arm_restorefpu.S
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_STACK_COLORATION),y)

arch/arm/src/samd5e5/Make.defs

@@ -57,6 +57,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_SCHED_BACKTRACE),y)

arch/arm/src/samv7/Make.defs

@@ -62,6 +62,7 @@ CMN_CSRCS += arm_cache.c
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_RAMVECTORS),y)

arch/arm/src/stm32/Make.defs

@@ -71,6 +71,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARMV7M_ITMSYSLOG),y)

arch/arm/src/stm32f7/Make.defs

@@ -62,6 +62,7 @@ CMN_CSRCS += arm_cache.c
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_RAMVECTORS),y)

arch/arm/src/stm32h7/Make.defs

@@ -62,6 +62,7 @@ CMN_CSRCS += arm_cache.c
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifneq ($(CONFIG_ARCH_IDLE_CUSTOM),y)

arch/arm/src/stm32l4/Make.defs

@@ -56,6 +56,7 @@ CMN_CSRCS += arm_vectors.c
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_RAMVECTORS),y)

arch/arm/src/stm32l5/Make.defs

@@ -61,6 +61,7 @@ CMN_CSRCS += arm_vectors.c
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_RAMVECTORS),y)

arch/arm/src/stm32u5/Make.defs

@@ -61,6 +61,7 @@ CMN_CSRCS += arm_vectors.c
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_RAMVECTORS),y)

arch/arm/src/tiva/Make.defs

@@ -50,6 +50,7 @@ CMN_CSRCS += arm_vectors.c
 ifeq ($(CONFIG_ARCH_FPU),y)
   CMN_ASRCS += arm_fpu.S
   CMN_CSRCS += arm_fpuconfig.c
+  CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_RAMVECTORS),y)

arch/arm/src/tms570/Make.defs

@@ -73,6 +73,7 @@ CMN_CSRCS += arm_cache.c
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_savefpu.S arm_restorefpu.S
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_SCHED_BACKTRACE),y)

arch/arm/src/xmc4/Make.defs

@@ -76,6 +76,7 @@ endif
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += arm_fpu.S
 CMN_CSRCS += arm_fpuconfig.c
+CMN_CSRCS += arm_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARMV7M_ITMSYSLOG),y)

arch/risc-v/src/bl602/Make.defs

@@ -47,6 +47,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += riscv_fpu.S
+CMN_CSRCS += riscv_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_HAVE_VFORK),y)

arch/risc-v/src/c906/Make.defs

@@ -47,6 +47,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += riscv_fpu.S
+CMN_CSRCS += riscv_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_HAVE_VFORK),y)

arch/risc-v/src/common/riscv_fpucmp.c

@@ -0,0 +1,59 @@
+/****************************************************************************
+ * arch/risc-v/src/common/riscv_fpucmp.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <nuttx/irq.h>
+
+#include "riscv_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_FPU
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_fpucmp
+ *
+ * Description:
+ *   compare FPU areas from thread context
+ *
+ ****************************************************************************/
+
+bool up_fpucmp(const void *saveregs1, const void *saveregs2)
+{
+  const uintptr_t *regs1 = saveregs1;
+  const uintptr_t *regs2 = saveregs2;
+
+  return memcmp(&regs1[INT_XCPT_REGS], &regs2[INT_XCPT_REGS],
+                INT_REG_SIZE * FPU_XCPT_REGS) == 0;
+}
+#endif /* CONFIG_ARCH_FPU */

arch/risc-v/src/mpfs/Make.defs

@@ -48,6 +48,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += riscv_fpu.S
+CMN_CSRCS += riscv_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_HAVE_VFORK),y)

arch/risc-v/src/qemu-rv/Make.defs

@@ -60,6 +60,7 @@ endif
 
 ifeq ($(CONFIG_ARCH_FPU),y)
 CMN_ASRCS += riscv_fpu.S
+CMN_CSRCS += riscv_fpucmp.c
 endif
 
 ifeq ($(CONFIG_ARCH_RV_ISA_A),y)

include/nuttx/arch.h

@@ -2573,6 +2573,20 @@ void up_perf_convert(uint32_t elapsed, FAR struct timespec *ts);
 
 int up_saveusercontext(FAR void *saveregs);
 
+/****************************************************************************
+ * Name: up_fpucmp
+ *
+ * Description:
+ *   compare FPU areas from thread context
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_FPU
+bool up_fpucmp(FAR const void *saveregs1, FAR const void *saveregs2);
+#else
+#define up_fpucmp(r1, r2) (true)
+#endif
+
 #undef EXTERN
 #if defined(__cplusplus)
 }