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authorFerass El Hafidi <vitali64pmemail@protonmail.com>2023-05-08 19:03:10 +0200
committerFerass El Hafidi <vitali64pmemail@protonmail.com>2023-05-08 19:03:10 +0200
commitf9ed707f171c8069e99e24e24c3da73d8b6f5716 (patch)
tree4da9838d387c8bc260e83f3f51f5dfa83e0b48ae /plat/common/aarch64/platform_up_stack.S
downloadamlogic-bl2-master.tar.gz
Push old Amlogic BL2 sourcesHEADmaster
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+/*
+ * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <platform_def.h>
+
+
+ .local pcpu_dv_mem_stack
+ .local platform_normal_stacks
+ .globl platform_set_stack
+ .globl platform_get_stack
+ .globl platform_set_coherent_stack
+
+
+ /* -----------------------------------------------------
+ * void platform_set_coherent_stack (unsigned long)
+ *
+ * For cold-boot BL images, only the primary CPU needs a
+ * stack. This function sets the stack pointer to a stack
+ * allocated in device memory.
+ * -----------------------------------------------------
+ */
+func platform_set_coherent_stack
+ get_up_stack pcpu_dv_mem_stack, PCPU_DV_MEM_STACK_SIZE
+ mov sp, x0
+ ret
+
+
+ /* -----------------------------------------------------
+ * unsigned long platform_get_stack (unsigned long)
+ *
+ * For cold-boot BL images, only the primary CPU needs a
+ * stack. This function returns the stack pointer for a
+ * stack allocated in device memory.
+ * -----------------------------------------------------
+ */
+func platform_get_stack
+ get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
+ ret
+
+ /* -----------------------------------------------------
+ * void platform_set_stack (unsigned long)
+ *
+ * For cold-boot BL images, only the primary CPU needs a
+ * stack. This function sets the stack pointer to a stack
+ * allocated in normal memory.
+ * -----------------------------------------------------
+ */
+func platform_set_stack
+ get_up_stack platform_normal_stacks, PLATFORM_STACK_SIZE
+ mov sp, x0
+ ret
+
+ /* -----------------------------------------------------
+ * Single cpu stack in normal memory.
+ * Used for C code during boot, PLATFORM_STACK_SIZE bytes
+ * are allocated
+ * -----------------------------------------------------
+ */
+declare_stack platform_normal_stacks, tzfw_normal_stacks, \
+ PLATFORM_STACK_SIZE, 1
+
+ /* -----------------------------------------------------
+ * Single cpu stack in device/coherent memory.
+ * PCPU_DV_MEM_STACK_SIZE bytes are allocated.
+ * -----------------------------------------------------
+ */
+declare_stack pcpu_dv_mem_stack, tzfw_coherent_mem, \
+ PCPU_DV_MEM_STACK_SIZE, 1