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https://github.com/ARM-software/arm-trusted-firmware.git
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09d40e0e08
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: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").
This problem was introduced in commit 4ecca33988 ("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 that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.
Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
/*
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* Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <stdint.h>
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#include <common/debug.h>
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#include <common/runtime_svc.h>
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#include <lib/pmf/pmf.h>
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#include <tools_share/uuid.h>
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#include <arm_sip_svc.h>
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#include <plat_arm.h>
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/* ARM SiP Service UUID */
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DEFINE_SVC_UUID2(arm_sip_svc_uid,
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0x556d75e2, 0x6033, 0xb54b, 0xb5, 0x75,
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0x62, 0x79, 0xfd, 0x11, 0x37, 0xff);
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static int arm_sip_setup(void)
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{
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if (pmf_setup() != 0)
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return 1;
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return 0;
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}
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/*
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* This function handles ARM defined SiP Calls
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*/
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static uintptr_t arm_sip_handler(unsigned int smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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int call_count = 0;
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/*
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* Dispatch PMF calls to PMF SMC handler and return its return
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* value
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*/
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if (is_pmf_fid(smc_fid)) {
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return pmf_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
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handle, flags);
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}
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switch (smc_fid) {
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case ARM_SIP_SVC_EXE_STATE_SWITCH: {
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u_register_t pc;
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/* Allow calls from non-secure only */
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if (!is_caller_non_secure(flags))
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SMC_RET1(handle, STATE_SW_E_DENIED);
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/* Validate supplied entry point */
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pc = (u_register_t) ((x1 << 32) | (uint32_t) x2);
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if (arm_validate_ns_entrypoint(pc) != 0)
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SMC_RET1(handle, STATE_SW_E_PARAM);
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/*
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* Pointers used in execution state switch are all 32 bits wide
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*/
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return (uintptr_t) arm_execution_state_switch(smc_fid,
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(uint32_t) x1, (uint32_t) x2, (uint32_t) x3,
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(uint32_t) x4, handle);
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}
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case ARM_SIP_SVC_CALL_COUNT:
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/* PMF calls */
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call_count += PMF_NUM_SMC_CALLS;
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/* State switch call */
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call_count += 1;
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SMC_RET1(handle, call_count);
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case ARM_SIP_SVC_UID:
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/* Return UID to the caller */
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SMC_UUID_RET(handle, arm_sip_svc_uid);
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case ARM_SIP_SVC_VERSION:
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/* Return the version of current implementation */
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SMC_RET2(handle, ARM_SIP_SVC_VERSION_MAJOR, ARM_SIP_SVC_VERSION_MINOR);
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default:
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WARN("Unimplemented ARM SiP Service Call: 0x%x \n", smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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}
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/* Define a runtime service descriptor for fast SMC calls */
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DECLARE_RT_SVC(
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arm_sip_svc,
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OEN_SIP_START,
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OEN_SIP_END,
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SMC_TYPE_FAST,
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arm_sip_setup,
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arm_sip_handler
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);
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