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Diffstat (limited to 'include/common/smcc_helpers.h')
| -rw-r--r-- | include/common/smcc_helpers.h | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/include/common/smcc_helpers.h b/include/common/smcc_helpers.h deleted file mode 100644 index 6279cf23..00000000 --- a/include/common/smcc_helpers.h +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Copyright (c) 2015, 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. - */ - -#ifndef __SMCC_HELPERS_H__ -#define __SMCC_HELPERS_H__ - -/******************************************************************************* - * Bit definitions inside the function id as per the SMC calling convention - ******************************************************************************/ -#define FUNCID_TYPE_SHIFT 31 -#define FUNCID_CC_SHIFT 30 -#define FUNCID_OEN_SHIFT 24 -#define FUNCID_NUM_SHIFT 0 - -#define FUNCID_TYPE_MASK 0x1 -#define FUNCID_CC_MASK 0x1 -#define FUNCID_OEN_MASK 0x3f -#define FUNCID_NUM_MASK 0xffff - -#define FUNCID_TYPE_WIDTH 1 -#define FUNCID_CC_WIDTH 1 -#define FUNCID_OEN_WIDTH 6 -#define FUNCID_NUM_WIDTH 16 - -#define GET_SMC_CC(id) ((id >> FUNCID_CC_SHIFT) & \ - FUNCID_CC_MASK) -#define GET_SMC_TYPE(id) ((id >> FUNCID_TYPE_SHIFT) & \ - FUNCID_TYPE_MASK) - -#define SMC_64 1 -#define SMC_32 0 -#define SMC_UNK 0xffffffff -#define SMC_TYPE_FAST 1 -#define SMC_TYPE_STD 0 -#define SMC_PREEMPTED 0xfffffffe -/******************************************************************************* - * Owning entity number definitions inside the function id as per the SMC - * calling convention - ******************************************************************************/ -#define OEN_ARM_START 0 -#define OEN_ARM_END 0 -#define OEN_CPU_START 1 -#define OEN_CPU_END 1 -#define OEN_SIP_START 2 -#define OEN_SIP_END 2 -#define OEN_OEM_START 3 -#define OEN_OEM_END 3 -#define OEN_STD_START 4 /* Standard Calls */ -#define OEN_STD_END 4 -#define OEN_TAP_START 48 /* Trusted Applications */ -#define OEN_TAP_END 49 -#define OEN_TOS_START 50 /* Trusted OS */ -#define OEN_TOS_END 63 -#define OEN_LIMIT 64 - -#ifndef __ASSEMBLY__ - -#include <cassert.h> -#include <context.h> -#include <stdint.h> - -/* Various flags passed to SMC handlers */ -#define SMC_FROM_SECURE (0 << 0) -#define SMC_FROM_NON_SECURE (1 << 0) - -#define is_caller_non_secure(_f) (!!(_f & SMC_FROM_NON_SECURE)) -#define is_caller_secure(_f) (!(is_caller_non_secure(_f))) - -/* Convenience macros to return from SMC handler */ -#define SMC_RET0(_h) { \ - return (uint64_t) (_h); \ -} -#define SMC_RET1(_h, _x0) { \ - write_ctx_reg(get_gpregs_ctx(_h), CTX_GPREG_X0, (_x0)); \ - SMC_RET0(_h); \ -} -#define SMC_RET2(_h, _x0, _x1) { \ - write_ctx_reg(get_gpregs_ctx(_h), CTX_GPREG_X1, (_x1)); \ - SMC_RET1(_h, (_x0)); \ -} -#define SMC_RET3(_h, _x0, _x1, _x2) { \ - write_ctx_reg(get_gpregs_ctx(_h), CTX_GPREG_X2, (_x2)); \ - SMC_RET2(_h, (_x0), (_x1)); \ -} -#define SMC_RET4(_h, _x0, _x1, _x2, _x3) { \ - write_ctx_reg(get_gpregs_ctx(_h), CTX_GPREG_X3, (_x3)); \ - SMC_RET3(_h, (_x0), (_x1), (_x2)); \ -} - -/* - * Convenience macros to access general purpose registers using handle provided - * to SMC handler. These takes the offset values defined in context.h - */ -#define SMC_GET_GP(_h, _g) \ - read_ctx_reg(get_gpregs_ctx(_h), (_g)) -#define SMC_SET_GP(_h, _g, _v) \ - write_ctx_reg(get_gpregs_ctx(_h), (_g), (_v)) - -/* - * Convenience macros to access EL3 context registers using handle provided to - * SMC handler. These takes the offset values defined in context.h - */ -#define SMC_GET_EL3(_h, _e) \ - read_ctx_reg(get_el3state_ctx(_h), (_e)) -#define SMC_SET_EL3(_h, _e, _v) \ - write_ctx_reg(get_el3state_ctx(_h), (_e), (_v)) - -/* The macro below is used to identify a Standard Service SMC call */ -#define is_std_svc_call(_fid) ((((_fid) >> FUNCID_OEN_SHIFT) & \ - FUNCID_OEN_MASK) == OEN_STD_START) - -/* The macro below is used to identify a valid Fast SMC call */ -#define is_valid_fast_smc(_fid) ((!(((_fid) >> 16) & 0xff)) && \ - (GET_SMC_TYPE(_fid) == SMC_TYPE_FAST)) - -/* - * Macro to define UUID for services. Apart from defining and initializing a - * uuid_t structure, this macro verifies that the first word of the defined UUID - * does not equal SMC_UNK. This is to ensure that the caller won't mistake the - * returned UUID in x0 for an invalid SMC error return - */ -#define DEFINE_SVC_UUID(_name, _tl, _tm, _th, _cl, _ch, \ - _n0, _n1, _n2, _n3, _n4, _n5) \ - CASSERT(_tl != SMC_UNK, invalid_svc_uuid);\ - static const uuid_t _name = { \ - _tl, _tm, _th, _cl, _ch, \ - { _n0, _n1, _n2, _n3, _n4, _n5 } \ - } - -/* Return a UUID in the SMC return registers */ -#define SMC_UUID_RET(_h, _uuid) \ - SMC_RET4(handle, ((const uint32_t *) &(_uuid))[0], \ - ((const uint32_t *) &(_uuid))[1], \ - ((const uint32_t *) &(_uuid))[2], \ - ((const uint32_t *) &(_uuid))[3]) - -#endif /*__ASSEMBLY__*/ -#endif /* __SMCC_HELPERS_H__ */ |