1*1760db68SCaesar Wang /* 2*1760db68SCaesar Wang * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3*1760db68SCaesar Wang * 4*1760db68SCaesar Wang * Redistribution and use in source and binary forms, with or without 5*1760db68SCaesar Wang * modification, are permitted provided that the following conditions are met: 6*1760db68SCaesar Wang * 7*1760db68SCaesar Wang * 1. Redistributions of source code must retain the above copyright notice, 8*1760db68SCaesar Wang * this list of conditions and the following disclaimer. 9*1760db68SCaesar Wang * 10*1760db68SCaesar Wang * 2. Redistributions in binary form must reproduce the above copyright notice, 11*1760db68SCaesar Wang * this list of conditions and the following disclaimer in the documentation 12*1760db68SCaesar Wang * and/or other materials provided with the distribution. 13*1760db68SCaesar Wang * 14*1760db68SCaesar Wang * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 15*1760db68SCaesar Wang * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16*1760db68SCaesar Wang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17*1760db68SCaesar Wang * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 18*1760db68SCaesar Wang * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19*1760db68SCaesar Wang * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20*1760db68SCaesar Wang * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21*1760db68SCaesar Wang * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22*1760db68SCaesar Wang * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23*1760db68SCaesar Wang * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24*1760db68SCaesar Wang * POSSIBILITY OF SUCH DAMAGE. 25*1760db68SCaesar Wang */ 26*1760db68SCaesar Wang 27*1760db68SCaesar Wang #include <assert.h> 28*1760db68SCaesar Wang #include <debug.h> 29*1760db68SCaesar Wang #include <mmio.h> 30*1760db68SCaesar Wang #include <plat_sip_calls.h> 31*1760db68SCaesar Wang #include <rockchip_sip_svc.h> 32*1760db68SCaesar Wang #include <runtime_svc.h> 33*1760db68SCaesar Wang #include <uuid.h> 34*1760db68SCaesar Wang 35*1760db68SCaesar Wang /* Rockchip SiP Service UUID */ 36*1760db68SCaesar Wang DEFINE_SVC_UUID(rk_sip_svc_uid, 37*1760db68SCaesar Wang 0xe86fc7e2, 0x313e, 0x11e6, 0xb7, 0x0d, 38*1760db68SCaesar Wang 0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72); 39*1760db68SCaesar Wang 40*1760db68SCaesar Wang #pragma weak rockchip_plat_sip_handler 41*1760db68SCaesar Wang uint64_t rockchip_plat_sip_handler(uint32_t smc_fid, 42*1760db68SCaesar Wang uint64_t x1, 43*1760db68SCaesar Wang uint64_t x2, 44*1760db68SCaesar Wang uint64_t x3, 45*1760db68SCaesar Wang uint64_t x4, 46*1760db68SCaesar Wang void *cookie, 47*1760db68SCaesar Wang void *handle, 48*1760db68SCaesar Wang uint64_t flags) 49*1760db68SCaesar Wang { 50*1760db68SCaesar Wang ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); 51*1760db68SCaesar Wang SMC_RET1(handle, SMC_UNK); 52*1760db68SCaesar Wang } 53*1760db68SCaesar Wang 54*1760db68SCaesar Wang /* 55*1760db68SCaesar Wang * This function is responsible for handling all SiP calls from the NS world 56*1760db68SCaesar Wang */ 57*1760db68SCaesar Wang uint64_t sip_smc_handler(uint32_t smc_fid, 58*1760db68SCaesar Wang uint64_t x1, 59*1760db68SCaesar Wang uint64_t x2, 60*1760db68SCaesar Wang uint64_t x3, 61*1760db68SCaesar Wang uint64_t x4, 62*1760db68SCaesar Wang void *cookie, 63*1760db68SCaesar Wang void *handle, 64*1760db68SCaesar Wang uint64_t flags) 65*1760db68SCaesar Wang { 66*1760db68SCaesar Wang uint32_t ns; 67*1760db68SCaesar Wang 68*1760db68SCaesar Wang /* Determine which security state this SMC originated from */ 69*1760db68SCaesar Wang ns = is_caller_non_secure(flags); 70*1760db68SCaesar Wang if (!ns) 71*1760db68SCaesar Wang SMC_RET1(handle, SMC_UNK); 72*1760db68SCaesar Wang 73*1760db68SCaesar Wang switch (smc_fid) { 74*1760db68SCaesar Wang case SIP_SVC_CALL_COUNT: 75*1760db68SCaesar Wang /* Return the number of Rockchip SiP Service Calls. */ 76*1760db68SCaesar Wang SMC_RET1(handle, 77*1760db68SCaesar Wang RK_COMMON_SIP_NUM_CALLS + RK_PLAT_SIP_NUM_CALLS); 78*1760db68SCaesar Wang 79*1760db68SCaesar Wang case SIP_SVC_UID: 80*1760db68SCaesar Wang /* Return UID to the caller */ 81*1760db68SCaesar Wang SMC_UUID_RET(handle, rk_sip_svc_uid); 82*1760db68SCaesar Wang break; 83*1760db68SCaesar Wang 84*1760db68SCaesar Wang case SIP_SVC_VERSION: 85*1760db68SCaesar Wang /* Return the version of current implementation */ 86*1760db68SCaesar Wang SMC_RET2(handle, RK_SIP_SVC_VERSION_MAJOR, 87*1760db68SCaesar Wang RK_SIP_SVC_VERSION_MINOR); 88*1760db68SCaesar Wang break; 89*1760db68SCaesar Wang 90*1760db68SCaesar Wang default: 91*1760db68SCaesar Wang return rockchip_plat_sip_handler(smc_fid, x1, x2, x3, x4, 92*1760db68SCaesar Wang cookie, handle, flags); 93*1760db68SCaesar Wang } 94*1760db68SCaesar Wang } 95*1760db68SCaesar Wang 96*1760db68SCaesar Wang /* Define a runtime service descriptor for fast SMC calls */ 97*1760db68SCaesar Wang DECLARE_RT_SVC( 98*1760db68SCaesar Wang rockchip_sip_svc, 99*1760db68SCaesar Wang OEN_SIP_START, 100*1760db68SCaesar Wang OEN_SIP_END, 101*1760db68SCaesar Wang SMC_TYPE_FAST, 102*1760db68SCaesar Wang NULL, 103*1760db68SCaesar Wang sip_smc_handler 104*1760db68SCaesar Wang ); 105