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https://github.com/ARM-software/arm-trusted-firmware.git
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044bb2faab
The build option `ENABLE_ASSERTIONS` should be used instead. That way both C and ASM assertions can be enabled or disabled together. All occurrences of `ASM_ASSERTION` in common code and ARM platforms have been replaced by `ENABLE_ASSERTIONS`. ASM_ASSERTION has been removed from the user guide. Change-Id: I51f1991f11b9b7ff83e787c9a3270c274748ec6f Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
197 lines
6.8 KiB
ArmAsm
197 lines
6.8 KiB
ArmAsm
/*
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* Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arch.h>
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#include <asm_macros.S>
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#include <assert_macros.S>
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#include <platform_def.h>
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.local platform_normal_stacks
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#if ENABLE_PLAT_COMPAT
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.globl plat_get_my_stack
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.globl plat_set_my_stack
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.weak platform_get_stack
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.weak platform_set_stack
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#else
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.weak plat_get_my_stack
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.weak plat_set_my_stack
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.globl platform_get_stack
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.globl platform_set_stack
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#endif /* __ENABLE_PLAT_COMPAT__ */
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#if ENABLE_PLAT_COMPAT
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/* ---------------------------------------------------------------------
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* When the compatility layer is enabled, the new platform APIs
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* viz plat_get_my_stack() and plat_set_my_stack() need to be
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* defined using the previous APIs platform_get_stack() and
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* platform_set_stack(). Also we need to provide weak definitions
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* of platform_get_stack() and platform_set_stack() for the platforms
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* to reuse.
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* --------------------------------------------------------------------
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*/
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/* -----------------------------------------------------
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* unsigned long plat_get_my_stack ()
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*
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* For the current CPU, this function returns the stack
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* pointer for a stack allocated in device memory.
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* -----------------------------------------------------
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*/
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func plat_get_my_stack
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mrs x0, mpidr_el1
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b platform_get_stack
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endfunc plat_get_my_stack
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/* -----------------------------------------------------
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* void plat_set_my_stack ()
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*
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* For the current CPU, this function sets the stack
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* pointer to a stack allocated in normal memory.
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* -----------------------------------------------------
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*/
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func plat_set_my_stack
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mrs x0, mpidr_el1
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b platform_set_stack
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endfunc plat_set_my_stack
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/* -----------------------------------------------------
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* unsigned long platform_get_stack (unsigned long mpidr)
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*
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* For a given CPU, this function returns the stack
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* pointer for a stack allocated in device memory.
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* -----------------------------------------------------
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*/
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func platform_get_stack
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mov x10, x30 // lr
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get_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE
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ret x10
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endfunc platform_get_stack
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/* -----------------------------------------------------
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* void platform_set_stack (unsigned long mpidr)
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*
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* For a given CPU, this function sets the stack pointer
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* to a stack allocated in normal memory.
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* -----------------------------------------------------
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*/
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func platform_set_stack
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mov x9, x30 // lr
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bl platform_get_stack
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mov sp, x0
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ret x9
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endfunc platform_set_stack
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#else
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/* ---------------------------------------------------------------------
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* When the compatility layer is disabled, the new platform APIs
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* viz plat_get_my_stack() and plat_set_my_stack() are
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* supported by the platform and the previous APIs platform_get_stack()
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* and platform_set_stack() are defined in terms of new APIs making use
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* of the fact that they are only ever invoked for the current CPU.
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* This is to enable components of Trusted Firmware like SPDs using the
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* old platform APIs to continue to work.
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* --------------------------------------------------------------------
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*/
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/* -------------------------------------------------------
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* unsigned long platform_get_stack (unsigned long mpidr)
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*
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* For the current CPU, this function returns the stack
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* pointer for a stack allocated in device memory. The
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* 'mpidr' should correspond to that of the current CPU.
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* This function is deprecated and plat_get_my_stack()
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* should be used instead.
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* -------------------------------------------------------
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*/
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func_deprecated platform_get_stack
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#if ENABLE_ASSERTIONS
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mrs x1, mpidr_el1
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cmp x0, x1
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ASM_ASSERT(eq)
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#endif
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b plat_get_my_stack
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endfunc_deprecated platform_get_stack
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/* -----------------------------------------------------
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* void platform_set_stack (unsigned long mpidr)
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*
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* For the current CPU, this function sets the stack pointer
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* to a stack allocated in normal memory. The
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* 'mpidr' should correspond to that of the current CPU.
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* This function is deprecated and plat_get_my_stack()
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* should be used instead.
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* -----------------------------------------------------
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*/
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func_deprecated platform_set_stack
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#if ENABLE_ASSERTIONS
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mrs x1, mpidr_el1
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cmp x0, x1
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ASM_ASSERT(eq)
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#endif
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b plat_set_my_stack
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endfunc_deprecated platform_set_stack
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/* -----------------------------------------------------
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* uintptr_t plat_get_my_stack ()
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*
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* For the current CPU, this function returns the stack
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* pointer for a stack allocated in device memory.
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* -----------------------------------------------------
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*/
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func plat_get_my_stack
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mov x10, x30 // lr
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get_my_mp_stack platform_normal_stacks, PLATFORM_STACK_SIZE
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ret x10
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endfunc plat_get_my_stack
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/* -----------------------------------------------------
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* void plat_set_my_stack ()
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*
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* For the current CPU, this function sets the stack
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* pointer to a stack allocated in normal memory.
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* -----------------------------------------------------
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*/
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func plat_set_my_stack
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mov x9, x30 // lr
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bl plat_get_my_stack
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mov sp, x0
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ret x9
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endfunc plat_set_my_stack
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#endif /*__ENABLE_PLAT_COMPAT__*/
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/* -----------------------------------------------------
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* Per-cpu stacks in normal memory. Each cpu gets a
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* stack of PLATFORM_STACK_SIZE bytes.
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* -----------------------------------------------------
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*/
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declare_stack platform_normal_stacks, tzfw_normal_stacks, \
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PLATFORM_STACK_SIZE, PLATFORM_CORE_COUNT, \
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CACHE_WRITEBACK_GRANULE
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