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| 4501 | Serge | 1 | /* |
| 2 | * Copyright © 2011-2013 Intel Corporation |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 21 | * SOFTWARE. |
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| 22 | * |
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| 23 | * Authors: |
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| 24 | * Chris Wilson |
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| 25 | * |
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| 26 | */ |
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| 27 | |||
| 28 | #ifndef GEN6_COMMON_H |
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| 29 | #define GEN6_COMMON_H |
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| 30 | |||
| 31 | #include "sna.h" |
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| 32 | |||
| 33 | #define NO_RING_SWITCH 0 |
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| 34 | #define PREFER_RENDER 0 |
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| 35 | |||
| 36 | static inline bool is_uncached(struct sna *sna, |
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| 37 | struct kgem_bo *bo) |
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| 38 | { |
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| 39 | return bo->scanout && !sna->kgem.has_wt; |
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| 40 | } |
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| 41 | |||
| 42 | inline static bool can_switch_to_blt(struct sna *sna, |
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| 43 | struct kgem_bo *bo, |
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| 44 | unsigned flags) |
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| 45 | { |
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| 46 | return false; |
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| 47 | } |
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| 48 | |||
| 49 | inline static bool can_switch_to_render(struct sna *sna, |
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| 50 | struct kgem_bo *bo) |
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| 51 | { |
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| 52 | if (sna->kgem.ring == KGEM_RENDER) |
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| 53 | return true; |
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| 54 | |||
| 55 | if (NO_RING_SWITCH) |
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| 56 | return false; |
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| 57 | |||
| 58 | if (!sna->kgem.has_semaphores) |
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| 59 | return false; |
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| 60 | |||
| 61 | if (bo && !RQ_IS_BLT(bo->rq) && !is_uncached(sna, bo)) |
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| 62 | return true; |
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| 63 | |||
| 64 | return !kgem_ring_is_idle(&sna->kgem, KGEM_RENDER); |
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| 65 | } |
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| 66 | |||
| 67 | static inline bool untiled_tlb_miss(struct kgem_bo *bo) |
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| 68 | { |
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| 69 | if (kgem_bo_is_render(bo)) |
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| 70 | return false; |
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| 71 | |||
| 72 | return bo->tiling == I915_TILING_NONE && bo->pitch >= 4096; |
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| 73 | } |
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| 74 | |||
| 75 | static int prefer_blt_bo(struct sna *sna, struct kgem_bo *bo) |
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| 76 | { |
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| 77 | if (bo->rq) |
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| 78 | return RQ_IS_BLT(bo->rq); |
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| 79 | |||
| 80 | if (sna->flags & SNA_POWERSAVE) |
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| 81 | return true; |
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| 82 | |||
| 83 | return bo->tiling == I915_TILING_NONE || is_uncached(sna, bo); |
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| 84 | } |
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| 85 | |||
| 86 | inline static bool force_blt_ring(struct sna *sna) |
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| 87 | { |
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| 88 | if (sna->flags & SNA_POWERSAVE) |
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| 89 | return true; |
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| 90 | |||
| 91 | if (sna->kgem.mode == KGEM_RENDER) |
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| 92 | return false; |
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| 93 | |||
| 94 | if (sna->render_state.gt < 2) |
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| 95 | return true; |
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| 96 | |||
| 97 | return false; |
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| 98 | } |
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| 99 | |||
| 100 | inline static bool prefer_blt_ring(struct sna *sna, |
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| 101 | struct kgem_bo *bo, |
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| 102 | unsigned flags) |
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| 103 | { |
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| 104 | assert(!force_blt_ring(sna)); |
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| 105 | assert(!kgem_bo_is_render(bo)); |
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| 106 | |||
| 107 | return can_switch_to_blt(sna, bo, flags); |
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| 108 | } |
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| 109 | |||
| 110 | inline static bool prefer_render_ring(struct sna *sna, |
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| 111 | struct kgem_bo *bo) |
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| 112 | { |
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| 113 | if (sna->flags & SNA_POWERSAVE) |
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| 114 | return false; |
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| 115 | |||
| 116 | if (sna->render_state.gt < 2) |
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| 117 | return false; |
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| 118 | |||
| 119 | return can_switch_to_render(sna, bo); |
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| 120 | } |
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| 121 | |||
| 122 | inline static bool |
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| 123 | prefer_blt_composite(struct sna *sna, struct sna_composite_op *tmp) |
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| 124 | { |
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| 125 | return false; |
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| 126 | |||
| 127 | } |
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| 128 | |||
| 129 | static inline bool prefer_blt_fill(struct sna *sna, |
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| 130 | struct kgem_bo *bo, |
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| 131 | unsigned flags) |
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| 132 | { |
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| 133 | return false; |
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| 134 | } |
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| 135 | |||
| 136 | void gen6_render_context_switch(struct kgem *kgem, int new_mode); |
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| 137 | void gen6_render_retire(struct kgem *kgem); |
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| 138 | |||
| 139 | #endif /* GEN6_COMMON_H */ |