gfx/skia/trunk/src/opts/SkCachePreload_arm.h

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1 /*
2 * Copyright 2012 The Android Open Source Project
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7 #ifndef SkCachePreload_arm_DEFINED
8 #define SkCachePreload_arm_DEFINED
9
10 // This file defines macros for preload instructions for ARM. These macros
11 // are designed to be embedded inside GNU inline assembly.
12 // For the use of these macros, __ARM_USE_PLD needs to be enabled. The cache
13 // line size also needs to be known (and needs to be contained inside
14 // __ARM_CACHE_LINE_SIZE).
15 #if defined(__ARM_USE_PLD)
16
17 #define PLD(x, n) "pld [%["#x"], #("#n")]\n\t"
18
19 #if __ARM_CACHE_LINE_SIZE == 32
20 #define PLD64(x, n) PLD(x, n) PLD(x, (n) + 32)
21 #elif __ARM_CACHE_LINE_SIZE == 64
22 #define PLD64(x, n) PLD(x, n)
23 #else
24 #error "unknown __ARM_CACHE_LINE_SIZE."
25 #endif
26 #else
27 // PLD is disabled, all macros become empty.
28 #define PLD(x, n)
29 #define PLD64(x, n)
30 #endif
31
32 #define PLD128(x, n) PLD64(x, n) PLD64(x, (n) + 64)
33
34 #endif // SkCachePreload_arm_DEFINED

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