Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2014 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Mika Kuoppala <mika.kuoppala@intel.com> |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #include "i915_drv.h" |
| 29 | #include "intel_renderstate.h" |
| 30 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 31 | struct render_state { |
| 32 | const struct intel_renderstate_rodata *rodata; |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 33 | struct drm_i915_gem_object *obj; |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 34 | u64 ggtt_offset; |
| 35 | int gen; |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 36 | }; |
| 37 | |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 38 | static const struct intel_renderstate_rodata * |
| 39 | render_state_get_rodata(struct drm_device *dev, const int gen) |
| 40 | { |
| 41 | switch (gen) { |
| 42 | case 6: |
| 43 | return &gen6_null_state; |
| 44 | case 7: |
| 45 | return &gen7_null_state; |
| 46 | case 8: |
| 47 | return &gen8_null_state; |
| 48 | } |
| 49 | |
| 50 | return NULL; |
| 51 | } |
| 52 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 53 | static int render_state_init(struct render_state *so, struct drm_device *dev) |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 54 | { |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 55 | int ret; |
| 56 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 57 | so->gen = INTEL_INFO(dev)->gen; |
| 58 | so->rodata = render_state_get_rodata(dev, so->gen); |
| 59 | if (so->rodata == NULL) |
| 60 | return 0; |
| 61 | |
| 62 | if (so->rodata->batch_items * 4 > 4096) |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 63 | return -EINVAL; |
| 64 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 65 | so->obj = i915_gem_alloc_object(dev, 4096); |
| 66 | if (so->obj == NULL) |
| 67 | return -ENOMEM; |
| 68 | |
| 69 | ret = i915_gem_obj_ggtt_pin(so->obj, 4096, 0); |
| 70 | if (ret) |
| 71 | goto free_gem; |
| 72 | |
| 73 | so->ggtt_offset = i915_gem_obj_ggtt_offset(so->obj); |
| 74 | return 0; |
| 75 | |
| 76 | free_gem: |
| 77 | drm_gem_object_unreference(&so->obj->base); |
| 78 | return ret; |
| 79 | } |
| 80 | |
| 81 | static int render_state_setup(struct render_state *so) |
| 82 | { |
| 83 | const struct intel_renderstate_rodata *rodata = so->rodata; |
| 84 | unsigned int i = 0, reloc_index = 0; |
| 85 | struct page *page; |
| 86 | u32 *d; |
| 87 | int ret; |
| 88 | |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 89 | ret = i915_gem_object_set_to_cpu_domain(so->obj, true); |
| 90 | if (ret) |
| 91 | return ret; |
| 92 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 93 | page = sg_page(so->obj->pages->sgl); |
| 94 | d = kmap(page); |
| 95 | |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 96 | while (i < rodata->batch_items) { |
| 97 | u32 s = rodata->batch[i]; |
| 98 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 99 | if (i * 4 == rodata->reloc[reloc_index]) { |
| 100 | u64 r = s + so->ggtt_offset; |
| 101 | s = lower_32_bits(r); |
| 102 | if (so->gen >= 8) { |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 103 | if (i + 1 >= rodata->batch_items || |
| 104 | rodata->batch[i + 1] != 0) |
| 105 | return -EINVAL; |
| 106 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 107 | d[i++] = s; |
| 108 | s = upper_32_bits(r); |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | reloc_index++; |
| 112 | } |
| 113 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 114 | d[i++] = s; |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 115 | } |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 116 | kunmap(page); |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 117 | |
| 118 | ret = i915_gem_object_set_to_gtt_domain(so->obj, false); |
| 119 | if (ret) |
| 120 | return ret; |
| 121 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 122 | if (rodata->reloc[reloc_index] != -1) { |
| 123 | DRM_ERROR("only %d relocs resolved\n", reloc_index); |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 124 | return -EINVAL; |
| 125 | } |
| 126 | |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 127 | return 0; |
| 128 | } |
| 129 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 130 | static void render_state_fini(struct render_state *so) |
| 131 | { |
| 132 | i915_gem_object_ggtt_unpin(so->obj); |
| 133 | drm_gem_object_unreference(&so->obj->base); |
| 134 | } |
| 135 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 136 | int i915_gem_render_state_init(struct intel_engine_cs *ring) |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 137 | { |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 138 | struct render_state so; |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 139 | int ret; |
| 140 | |
Mika Kuoppala | 46470fc9 | 2014-05-21 19:01:06 +0300 | [diff] [blame] | 141 | if (WARN_ON(ring->id != RCS)) |
| 142 | return -ENOENT; |
| 143 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 144 | ret = render_state_init(&so, ring->dev); |
| 145 | if (ret) |
| 146 | return ret; |
| 147 | |
| 148 | if (so.rodata == NULL) |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 149 | return 0; |
| 150 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 151 | ret = render_state_setup(&so); |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 152 | if (ret) |
| 153 | goto out; |
| 154 | |
| 155 | ret = ring->dispatch_execbuffer(ring, |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 156 | so.ggtt_offset, |
| 157 | so.rodata->batch_items * 4, |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 158 | I915_DISPATCH_SECURE); |
| 159 | if (ret) |
| 160 | goto out; |
| 161 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 162 | i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), ring); |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 163 | |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 164 | ret = __i915_add_request(ring, NULL, so.obj, NULL); |
Mika Kuoppala | 46470fc9 | 2014-05-21 19:01:06 +0300 | [diff] [blame] | 165 | /* __i915_add_request moves object to inactive if it fails */ |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 166 | out: |
Chris Wilson | 1ce826d | 2014-06-10 11:23:33 +0100 | [diff] [blame] | 167 | render_state_fini(&so); |
Mika Kuoppala | 9d0a6fa | 2014-05-14 17:02:16 +0300 | [diff] [blame] | 168 | return ret; |
| 169 | } |