92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/*
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* Copyright (c) 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 <assert.h>
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#include <debug.h>
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#include <platform.h>
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#include <pmf.h>
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#include <smcc_helpers.h>
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/*
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* This function is responsible for handling all PMF SMC calls.
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*/
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uintptr_t pmf_smc_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 rc;
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unsigned long long ts_value;
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if (((smc_fid >> FUNCID_CC_SHIFT) & FUNCID_CC_MASK) == SMC_32) {
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x1 = (uint32_t)x1;
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x2 = (uint32_t)x2;
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x3 = (uint32_t)x3;
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switch (smc_fid) {
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case PMF_SMC_GET_TIMESTAMP_32:
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/*
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* Return error code and the captured
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* time-stamp to the caller.
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* x0 --> error code.
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* x1 - x2 --> time-stamp value.
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*/
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rc = pmf_get_timestamp_smc(x1, x2, x3, &ts_value);
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SMC_RET3(handle, rc, (uint32_t)ts_value,
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(uint32_t)(ts_value >> 32));
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default:
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break;
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}
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} else {
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switch (smc_fid) {
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case PMF_SMC_GET_TIMESTAMP_64:
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/*
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* Return error code and the captured
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* time-stamp to the caller.
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* x0 --> error code.
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* x1 --> time-stamp value.
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*/
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rc = pmf_get_timestamp_smc(x1, x2, x3, &ts_value);
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SMC_RET2(handle, rc, ts_value);
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default:
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break;
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}
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}
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WARN("Unimplemented PMF Call: 0x%x \n", smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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