49 lines
2.0 KiB
C
49 lines
2.0 KiB
C
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/*
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* Tiny Code Generator for QEMU
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*
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* Copyright (c) 2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef TCG_MO_H
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#define TCG_MO_H
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typedef enum {
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/* Used to indicate the type of accesses on which ordering
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is to be ensured. Modeled after SPARC barriers.
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This is of the form TCG_MO_A_B where A is before B in program order.
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*/
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TCG_MO_LD_LD = 0x01,
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TCG_MO_ST_LD = 0x02,
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TCG_MO_LD_ST = 0x04,
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TCG_MO_ST_ST = 0x08,
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TCG_MO_ALL = 0x0F, /* OR of the above */
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/* Used to indicate the kind of ordering which is to be ensured by the
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instruction. These types are derived from x86/aarch64 instructions.
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It should be noted that these are different from C11 semantics. */
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TCG_BAR_LDAQ = 0x10, /* Following ops will not come forward */
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TCG_BAR_STRL = 0x20, /* Previous ops will not be delayed */
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TCG_BAR_SC = 0x30, /* No ops cross barrier; OR of the above */
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} TCGBar;
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#endif /* TCG_MO_H */
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