blob: 52e8cd70ff9b5d3a1ce6ad82f118d5cecd6d9c03 [file] [log] [blame]
/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <debug.h>
#include <mmio.h>
#include <plat_sip_calls.h>
#include <rockchip_sip_svc.h>
#include <runtime_svc.h>
#include <uuid.h>
/* Rockchip SiP Service UUID */
DEFINE_SVC_UUID(rk_sip_svc_uid,
0xe86fc7e2, 0x313e, 0x11e6, 0xb7, 0x0d,
0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72);
#pragma weak rockchip_plat_sip_handler
uint64_t rockchip_plat_sip_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
uint64_t x4,
void *cookie,
void *handle,
uint64_t flags)
{
ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
SMC_RET1(handle, SMC_UNK);
}
/*
* This function is responsible for handling all SiP calls from the NS world
*/
uint64_t sip_smc_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
uint64_t x4,
void *cookie,
void *handle,
uint64_t flags)
{
uint32_t ns;
/* Determine which security state this SMC originated from */
ns = is_caller_non_secure(flags);
if (!ns)
SMC_RET1(handle, SMC_UNK);
switch (smc_fid) {
case SIP_SVC_CALL_COUNT:
/* Return the number of Rockchip SiP Service Calls. */
SMC_RET1(handle,
RK_COMMON_SIP_NUM_CALLS + RK_PLAT_SIP_NUM_CALLS);
case SIP_SVC_UID:
/* Return UID to the caller */
SMC_UUID_RET(handle, rk_sip_svc_uid);
break;
case SIP_SVC_VERSION:
/* Return the version of current implementation */
SMC_RET2(handle, RK_SIP_SVC_VERSION_MAJOR,
RK_SIP_SVC_VERSION_MINOR);
break;
default:
return rockchip_plat_sip_handler(smc_fid, x1, x2, x3, x4,
cookie, handle, flags);
}
}
/* Define a runtime service descriptor for fast SMC calls */
DECLARE_RT_SVC(
rockchip_sip_svc,
OEN_SIP_START,
OEN_SIP_END,
SMC_TYPE_FAST,
NULL,
sip_smc_handler
);