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https://github.com/ARM-software/arm-trusted-firmware.git
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4c0d039076
This patch reworks type usage in generic code, drivers and ARM platform files to make it more portable. The major changes done with respect to type usage are as listed below: * Use uintptr_t for storing address instead of uint64_t or unsigned long. * Review usage of unsigned long as it can no longer be assumed to be 64 bit. * Use u_register_t for register values whose width varies depending on whether AArch64 or AArch32. * Use generic C types where-ever possible. In addition to the above changes, this patch also modifies format specifiers in print invocations so that they are AArch64/AArch32 agnostic. Only files related to upcoming feature development have been reworked. Change-Id: I9f8c78347c5a52ba7027ff389791f1dad63ee5f8
106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/*
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* Copyright (c) 2014-2016, 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 <debug.h>
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#include <psci.h>
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#include <runtime_svc.h>
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#include <std_svc.h>
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#include <stdint.h>
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#include <uuid.h>
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/* Standard Service UUID */
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DEFINE_SVC_UUID(arm_svc_uid,
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0x108d905b, 0xf863, 0x47e8, 0xae, 0x2d,
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0xc0, 0xfb, 0x56, 0x41, 0xf6, 0xe2);
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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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/*
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* PSCI is the only specification implemented as a Standard Service.
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* Invoke PSCI setup from here
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*/
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return psci_setup();
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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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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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return psci_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_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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