• Antonio Nino Diaz's avatar
    Sanitise includes across codebase · 09d40e0e
    Antonio Nino Diaz authored
    Enforce full include path for includes. Deprecate old paths.
    
    The following folders inside include/lib have been left unchanged:
    
    - include/lib/cpus/${ARCH}
    - include/lib/el3_runtime/${ARCH}
    
    The reason for this change is that having a global namespace for
    includes isn't a good idea. It defeats one of the advantages of having
    folders and it introduces problems that are sometimes subtle (because
    you may not know the header you are actually including if there are two
    of them).
    
    For example, this patch had to be created because two headers were
    called the same way: e0ea0928 ("Fix gpio includes of mt8173 platform
    to avoid collision."). More recently, this patch has had similar
    problems: 46f9b2c3 ("drivers: add tzc380 support").
    
    This problem was introduced in commit 4ecca339 ("Move include and
    source files to logical locations"). At that time, there weren't too
    many headers so it wasn't a real issue. However, time has shown that
    this creates problems.
    
    Platforms t...
    09d40e0e
tsp_request.S 747 Bytes
/*
 * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <asm_macros.S>
#include <bl32/tsp/tsp.h>

	.globl tsp_get_magic


/*
 * This function raises an SMC to retrieve arguments from secure
 * monitor/dispatcher, saves the returned arguments the array received in x0,
 * and then returns to the caller
 */
func tsp_get_magic
	/* Save address to stack */
	stp	x0, xzr, [sp, #-16]!

	/* Load arguments */
	ldr	w0, _tsp_fid_get_magic

	/* Raise SMC */
	smc	#0

	/* Restore address from stack */
	ldp	x4, xzr, [sp], #16

	/* Store returned arguments to the array */
	stp	x0, x1, [x4, #0]

	ret
endfunc tsp_get_magic

	.align 2
_tsp_fid_get_magic:
	.word	TSP_GET_ARGS