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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>
155 lines
3.3 KiB
C
155 lines
3.3 KiB
C
/*
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* Copyright (c) 2014-2018, 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 <assert.h>
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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/el3_runtime/cpu_data.h>
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#include <lib/pmf/pmf.h>
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#include <lib/psci/psci.h>
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#include <lib/runtime_instr.h>
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#include <services/sdei.h>
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#include <services/spm_svc.h>
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#include <services/std_svc.h>
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#include <smccc_helpers.h>
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#include <tools_share/uuid.h>
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/* Standard Service UUID */
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static uuid_t arm_svc_uid = {
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{0x5b, 0x90, 0x8d, 0x10},
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{0x63, 0xf8},
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{0xe8, 0x47},
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0xae, 0x2d,
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{0xc0, 0xfb, 0x56, 0x41, 0xf6, 0xe2}
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};
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/* Setup Standard Services */
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static int32_t std_svc_setup(void)
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{
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uintptr_t svc_arg;
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int ret = 0;
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svc_arg = get_arm_std_svc_args(PSCI_FID_MASK);
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assert(svc_arg);
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/*
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* PSCI is one of the specifications implemented as a Standard Service.
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* The `psci_setup()` also does EL3 architectural setup.
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*/
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if (psci_setup((const psci_lib_args_t *)svc_arg) != PSCI_E_SUCCESS) {
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ret = 1;
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}
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#if ENABLE_SPM
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if (spm_setup() != 0) {
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ret = 1;
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}
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#endif
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#if SDEI_SUPPORT
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/* SDEI initialisation */
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sdei_init();
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#endif
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return ret;
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}
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/*
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* Top-level Standard Service SMC handler. This handler will in turn dispatch
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* calls to PSCI SMC handler
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*/
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static uintptr_t std_svc_smc_handler(uint32_t 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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/*
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* Dispatch PSCI calls to PSCI SMC handler and return its return
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* value
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*/
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if (is_psci_fid(smc_fid)) {
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uint64_t ret;
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#if ENABLE_RUNTIME_INSTRUMENTATION
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/*
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* Flush cache line so that even if CPU power down happens
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* the timestamp update is reflected in memory.
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*/
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PMF_WRITE_TIMESTAMP(rt_instr_svc,
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RT_INSTR_ENTER_PSCI,
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PMF_CACHE_MAINT,
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get_cpu_data(cpu_data_pmf_ts[CPU_DATA_PMF_TS0_IDX]));
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#endif
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ret = psci_smc_handler(smc_fid, x1, x2, x3, x4,
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cookie, handle, flags);
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#if ENABLE_RUNTIME_INSTRUMENTATION
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PMF_CAPTURE_TIMESTAMP(rt_instr_svc,
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RT_INSTR_EXIT_PSCI,
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PMF_NO_CACHE_MAINT);
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#endif
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SMC_RET1(handle, ret);
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}
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#if ENABLE_SPM && SPM_DEPRECATED
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/*
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* Dispatch SPM calls to SPM SMC handler and return its return
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* value
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*/
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if (is_spm_fid(smc_fid)) {
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return spm_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
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handle, flags);
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}
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#endif
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#if SDEI_SUPPORT
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if (is_sdei_fid(smc_fid)) {
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return sdei_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
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flags);
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}
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#endif
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switch (smc_fid) {
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case ARM_STD_SVC_CALL_COUNT:
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/*
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* Return the number of Standard Service Calls. PSCI is the only
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* standard service implemented; so return number of PSCI calls
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*/
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SMC_RET1(handle, PSCI_NUM_CALLS);
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case ARM_STD_SVC_UID:
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/* Return UID to the caller */
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SMC_UUID_RET(handle, arm_svc_uid);
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case ARM_STD_SVC_VERSION:
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/* Return the version of current implementation */
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SMC_RET2(handle, STD_SVC_VERSION_MAJOR, STD_SVC_VERSION_MINOR);
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default:
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WARN("Unimplemented Standard 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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/* Register Standard Service Calls as runtime service */
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DECLARE_RT_SVC(
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std_svc,
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OEN_STD_START,
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OEN_STD_END,
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SMC_TYPE_FAST,
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std_svc_setup,
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std_svc_smc_handler
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);
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