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/*
* Copyright © 2015 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#pragma once
/* Macros for handling per-gen compilation.
*
* The prefixing macros GENX() and genX() automatically prefix whatever you
* give them by GENX_ or genX_ where X is the gen number.
*
* You can declare a function to be used on some range of gens like this:
*
* GENX_FUNC(GEN7, GEN75) void
* genX(my_function_name)(args...)
* {
* // Do stuff
* }
*
* If the file is compiled for any set of gens containing gen7 and gen75,
* the function will effectively only get compiled twice as
* gen7_my_function_nmae and gen75_my_function_name. The function has to
* be compilable on all gens, but it will become a static inline that gets
* discarded by the compiler on all gens not in range.
*
* You can do pseudo-runtime checks in your function such as
*
* if (ANV_GEN > 8 || ANV_IS_HASWELL) {
* // Do something
* }
*
* The contents of the if statement must be valid regardless of gen, but
* the if will get compiled away on everything except haswell.
*
* For places where you really do have a compile-time conflict, you can
* use preprocessor logic:
*
* #if (ANV_GEN > 8 || ANV_IS_HASWELL)
* // Do something
* #endif
*
* However, it is strongly recommended that the former be used whenever
* possible.
*/
/* Base macro defined on the command line. If we don't have this, we can't
* do anything.
*/
#ifdef ANV_GENx10
/* Gen checking macros */
#define ANV_GEN ((ANV_GENx10) / 10)
#define ANV_IS_HASWELL ((ANV_GENx10) == 75)
/* Prefixing macros */
#if (ANV_GENx10 == 70)
# define GENX(X) GEN7_##X
# define genX(x) gen7_##x
#elif (ANV_GENx10 == 75)
# define GENX(X) GEN75_##X
# define genX(x) gen75_##x
#elif (ANV_GENx10 == 80)
# define GENX(X) GEN8_##X
# define genX(x) gen8_##x
#elif (ANV_GENx10 == 90)
# define GENX(X) GEN9_##X
# define genX(x) gen9_##x
#else
# error "Need to add prefixing macros for your gen"
#endif
/* Macros for comparing gens */
#if (ANV_GENx10 >= 70)
#define __ANV_GEN_GE_GEN7(T, F) T
#else
#define __ANV_GEN_GE_GEN7(T, F) F
#endif
#if (ANV_GENx10 <= 70)
#define __ANV_GEN_LE_GEN7(T, F) T
#else
#define __ANV_GEN_LE_GEN7(T, F) F
#endif
#if (ANV_GENx10 >= 75)
#define __ANV_GEN_GE_GEN75(T, F) T
#else
#define __ANV_GEN_GE_GEN75(T, F) F
#endif
#if (ANV_GENx10 <= 75)
#define __ANV_GEN_LE_GEN75(T, F) T
#else
#define __ANV_GEN_LE_GEN75(T, F) F
#endif
#if (ANV_GENx10 >= 80)
#define __ANV_GEN_GE_GEN8(T, F) T
#else
#define __ANV_GEN_GE_GEN8(T, F) F
#endif
#if (ANV_GENx10 <= 80)
#define __ANV_GEN_LE_GEN8(T, F) T
#else
#define __ANV_GEN_LE_GEN8(T, F) F
#endif
#if (ANV_GENx10 >= 90)
#define __ANV_GEN_GE_GEN9(T, F) T
#else
#define __ANV_GEN_GE_GEN9(T, F) F
#endif
#if (ANV_GENx10 <= 90)
#define __ANV_GEN_LE_GEN9(T, F) T
#else
#define __ANV_GEN_LE_GEN9(T, F) F
#endif
#define __ANV_GEN_IN_RANGE(start, end, T, F) \
__ANV_GEN_GE_##start(__ANV_GEN_LE_##end(T, F), F)
/* Declares a function as static inlind if it's not in range */
#define GENX_FUNC(start, end) __ANV_GEN_IN_RANGE(start, end, , static inline)
#endif /* ANV_GENx10 */
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