feat(ls64): add a test for 64byte loads/stores instructions
This patch adds a test to verify the 64 byte load and store
instructions introduced by FEAT_LS64.
The test primarily executes instructions:
1. LD64B
2. ST64B
and ensures that the NS-EL2 has no dependency on EL3 while
running them.
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: I7a4ca0ee4a2c18bf0de030c72e35eb218bc6364c
diff --git a/plat/arm/fvp/fvp_def.h b/plat/arm/fvp/fvp_def.h
index bcd3a7c..1d01bb2 100644
--- a/plat/arm/fvp/fvp_def.h
+++ b/plat/arm/fvp/fvp_def.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018-2020, Arm Limited. All rights reserved.
+ * Copyright (c) 2018-2024, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -28,11 +28,19 @@
* FVP memory map related constants
******************************************************************************/
-#define DEVICE0_BASE 0x1a000000
-#define DEVICE0_SIZE 0x12200000
+#define DEVICE0_BASE 0x1a000000
+#define DEVICE0_SIZE 0x12200000
-#define DEVICE1_BASE 0x2f000000
-#define DEVICE1_SIZE 0x400000
+#define DEVICE1_BASE 0x2f000000
+#define DEVICE1_SIZE 0x400000
+
+/**
+ * NOTE: LS64_ATOMIC_DEVICE Memory Region (0x1d000000 - 0x1d00ffff) has been
+ * configured within the FVP to support only st64b/ld64b instructions.
+ * ldr/str instructions cannot be used to access this memory.
+ */
+#define LS64_ATOMIC_DEVICE_BASE 0x1d000000
+#define LS64_ATOMIC_DEVICE_SIZE 0x10000
/*******************************************************************************
* GIC-400 & interrupt handling related constants
diff --git a/plat/arm/fvp/plat_setup.c b/plat/arm/fvp/plat_setup.c
index fa97814..cb6f874 100644
--- a/plat/arm/fvp/plat_setup.c
+++ b/plat/arm/fvp/plat_setup.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018, Arm Limited. All rights reserved.
+ * Copyright (c) 2018-2024, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -30,6 +30,8 @@
static const mmap_region_t mmap[] = {
MAP_REGION_FLAT(DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW | MT_NS),
MAP_REGION_FLAT(DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW | MT_NS),
+ MAP_REGION_FLAT(LS64_ATOMIC_DEVICE_BASE, LS64_ATOMIC_DEVICE_SIZE,
+ MT_DEVICE | MT_RW | MT_NS),
#if USE_NVM
MAP_REGION_FLAT(FLASH_BASE, FLASH_SIZE, MT_DEVICE | MT_RW | MT_NS),
#endif