Merge changes from topic "lto-fixes" into integration

* changes:
  fix(bl1): add missing `__RW_{START,END}__` symbols
  fix(fvp): don't check MPIDRs with the power controller in BL1
  fix(arm): only expose `arm_bl2_dyn_cfg_init` to BL2
  fix(cm): hide `cm_init_context_by_index` from BL1
  fix(bl1): add missing spinlock dependency

bl1/bl1.ld.S

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -116,6 +116,8 @@ SECTIONS {
     ASSERT(BL1_RW_BASE == ALIGN(PAGE_SIZE),
         "BL1_RW_BASE address is not aligned on a page boundary.")
 
+    __RW_START__ = .;
+
     DATA_SECTION >RAM AT>ROM
 
     __DATA_RAM_START__ = __DATA_START__;
@@ -148,6 +150,8 @@ SECTIONS {
     } >RAM
 #endif /* USE_COHERENT_MEM */
 
+    __RW_END__ = .;
+
     __BL1_RAM_START__ = ADDR(.data);
     __BL1_RAM_END__ = .;
 

bl1/bl1.mk

@@ -12,6 +12,7 @@ BL1_SOURCES		+=	bl1/${ARCH}/bl1_arch_setup.c		\
 				lib/cpus/${ARCH}/cpu_helpers.S		\
 				lib/cpus/errata_report.c		\
 				lib/el3_runtime/${ARCH}/context_mgmt.c	\
+				lib/locks/exclusive/${ARCH}/spinlock.S	\
 				plat/common/plat_bl1_common.c		\
 				plat/common/${ARCH}/platform_up_stack.S \
 				${MBEDTLS_SOURCES}

include/lib/el3_runtime/context_mgmt.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -30,12 +30,15 @@ void cm_set_context_by_index(unsigned int cpu_idx,
 void *cm_get_context(uint32_t security_state);
 void cm_set_context(void *context, uint32_t security_state);
 void cm_init_my_context(const struct entry_point_info *ep);
-void cm_init_context_by_index(unsigned int cpu_idx,
-			      const struct entry_point_info *ep);
 void cm_setup_context(cpu_context_t *ctx, const struct entry_point_info *ep);
 void cm_prepare_el3_exit(uint32_t security_state);
 void cm_prepare_el3_exit_ns(void);
 
+#if !IMAGE_BL1
+void cm_init_context_by_index(unsigned int cpu_idx,
+			      const struct entry_point_info *ep);
+#endif /* !IMAGE_BL1 */
+
 #ifdef __aarch64__
 #if IMAGE_BL31
 void cm_manage_extensions_el3(void);

include/plat/arm/common/plat_arm.h

@@ -285,10 +285,14 @@ void arm_sp_min_plat_arch_setup(void);
 bool arm_io_is_toc_valid(void);
 
 /* Utility functions for Dynamic Config */
-void arm_bl2_dyn_cfg_init(void);
+
 void arm_bl1_set_mbedtls_heap(void);
 int arm_get_mbedtls_heap(void **heap_addr, size_t *heap_size);
 
+#if IMAGE_BL2
+void arm_bl2_dyn_cfg_init(void);
+#endif /* IMAGE_BL2 */
+
 #if MEASURED_BOOT
 #if DICE_PROTECTION_ENVIRONMENT
 int arm_set_nt_fw_info(int *ctx_handle);

lib/el3_runtime/aarch32/context_mgmt.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2023, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -157,6 +157,7 @@ static void enable_extensions_nonsecure(bool el2_unused)
 #endif /*  IMAGE_BL32 */
 }
 
+#if !IMAGE_BL1
 /*******************************************************************************
  * The following function initializes the cpu_context for a CPU specified by
  * its `cpu_idx` for first use, and sets the initial entrypoint state as
@@ -169,6 +170,7 @@ void cm_init_context_by_index(unsigned int cpu_idx,
 	ctx = cm_get_context_by_index(cpu_idx, GET_SECURITY_STATE(ep->h.attr));
 	cm_setup_context(ctx, ep);
 }
+#endif /* !IMAGE_BL1 */
 
 /*******************************************************************************
  * The following function initializes the cpu_context for the current CPU

lib/el3_runtime/aarch64/context_mgmt.c

@@ -809,6 +809,7 @@ static void manage_extensions_secure(cpu_context_t *ctx)
 #endif /* IMAGE_BL31 */
 }
 
+#if !IMAGE_BL1
 /*******************************************************************************
  * The following function initializes the cpu_context for a CPU specified by
  * its `cpu_idx` for first use, and sets the initial entrypoint state as
@@ -821,6 +822,7 @@ void cm_init_context_by_index(unsigned int cpu_idx,
 	ctx = cm_get_context_by_index(cpu_idx, GET_SECURITY_STATE(ep->h.attr));
 	cm_setup_context(ctx, ep);
 }
+#endif /* !IMAGE_BL1 */
 
 /*******************************************************************************
  * The following function initializes the cpu_context for the current CPU

plat/arm/board/fvp/fvp_topology.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2023, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -36,7 +36,7 @@ const unsigned char *plat_get_power_domain_tree_desc(void)
 	 * fconf APIs are not supported for RESET_TO_SP_MIN, RESET_TO_BL31 and
 	 * RESET_TO_BL2 systems.
 	 */
-#if RESET_TO_SP_MIN || RESET_TO_BL31 || RESET_TO_BL2
+#if RESET_TO_SP_MIN || RESET_TO_BL31 || RESET_TO_BL2 || IMAGE_BL1
 	cluster_count = FVP_CLUSTER_COUNT;
 	cpus_per_cluster = FVP_MAX_CPUS_PER_CLUSTER * FVP_MAX_PE_PER_CPU;
 #else
@@ -106,8 +106,10 @@ int plat_core_pos_by_mpidr(u_register_t mpidr)
 	if (thread_id >= FVP_MAX_PE_PER_CPU)
 		return -1;
 
+#if !IMAGE_BL1
 	if (fvp_pwrc_read_psysr(mpidr) == PSYSR_INVALID)
 		return -1;
+#endif /* IMAGE_BL1 */
 
 	/*
 	 * Core position calculation for FVP platform depends on the MT bit in

plat/arm/board/fvp/platform.mk

@@ -237,6 +237,7 @@ BL1_SOURCES		+=	drivers/arm/smmu/smmu_v3.c			\
 				plat/arm/board/fvp/fvp_bl1_setup.c		\
 				plat/arm/board/fvp/fvp_err.c			\
 				plat/arm/board/fvp/fvp_io_storage.c		\
+				plat/arm/board/fvp/fvp_topology.c		\
 				${FVP_CPU_LIBS}					\
 				${FVP_INTERCONNECT_SOURCES}
 

plat/arm/common/arm_dyn_cfg.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2023, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -120,6 +120,7 @@ void arm_bl1_set_mbedtls_heap(void)
 }
 #endif /* CRYPTO_SUPPORT */
 
+#if IMAGE_BL2
 /*
  * BL2 utility function to initialize dynamic configuration specified by
  * FW_CONFIG. Populate the bl_mem_params_node_t of other FW_CONFIGs if
@@ -229,3 +230,4 @@ void arm_bl2_dyn_cfg_init(void)
 		panic();
 	}
 }
+#endif /* IMAGE_BL2 */