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f64122c1 DA |
1 | /* |
2 | * Copyright 2013 Red Hat Inc. | |
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 shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Dave Airlie | |
23 | * Alon Levy | |
24 | */ | |
25 | ||
c0f4b75c SR |
26 | #include <linux/delay.h> |
27 | ||
28 | #include <drm/drm.h> | |
29 | #include <drm/drm_file.h> | |
30 | #include <drm/drm_debugfs.h> | |
31 | #include <drm/qxl_drm.h> | |
a3185f91 | 32 | #include <drm/ttm/ttm_bo.h> |
c0f4b75c | 33 | #include <drm/ttm/ttm_placement.h> |
3eb7d96e | 34 | #include <drm/ttm/ttm_range_manager.h> |
a3185f91 | 35 | #include <drm/ttm/ttm_tt.h> |
c0f4b75c | 36 | |
f64122c1 DA |
37 | #include "qxl_drv.h" |
38 | #include "qxl_object.h" | |
39 | ||
8af8a109 | 40 | static struct qxl_device *qxl_get_qdev(struct ttm_device *bdev) |
f64122c1 DA |
41 | { |
42 | struct qxl_mman *mman; | |
43 | struct qxl_device *qdev; | |
44 | ||
45 | mman = container_of(bdev, struct qxl_mman, bdev); | |
46 | qdev = container_of(mman, struct qxl_device, mman); | |
47 | return qdev; | |
48 | } | |
49 | ||
f64122c1 DA |
50 | static void qxl_evict_flags(struct ttm_buffer_object *bo, |
51 | struct ttm_placement *placement) | |
52 | { | |
53 | struct qxl_bo *qbo; | |
9e2033a6 | 54 | static const struct ttm_place placements = { |
f1217ed0 CK |
55 | .fpfn = 0, |
56 | .lpfn = 0, | |
48e07c23 | 57 | .mem_type = TTM_PL_SYSTEM, |
ce65b874 | 58 | .flags = 0 |
f1217ed0 | 59 | }; |
f64122c1 DA |
60 | |
61 | if (!qxl_ttm_bo_is_qxl_bo(bo)) { | |
f64122c1 DA |
62 | placement->placement = &placements; |
63 | placement->busy_placement = &placements; | |
64 | placement->num_placement = 1; | |
65 | placement->num_busy_placement = 1; | |
66 | return; | |
67 | } | |
3ebf1c6d | 68 | qbo = to_qxl_bo(bo); |
9d36d432 | 69 | qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU); |
f64122c1 DA |
70 | *placement = qbo->placement; |
71 | } | |
72 | ||
8af8a109 | 73 | int qxl_ttm_io_mem_reserve(struct ttm_device *bdev, |
2966141a | 74 | struct ttm_resource *mem) |
f64122c1 | 75 | { |
f64122c1 DA |
76 | struct qxl_device *qdev = qxl_get_qdev(bdev); |
77 | ||
f64122c1 DA |
78 | switch (mem->mem_type) { |
79 | case TTM_PL_SYSTEM: | |
80 | /* system memory */ | |
81 | return 0; | |
82 | case TTM_PL_VRAM: | |
83 | mem->bus.is_iomem = true; | |
54d04ea8 | 84 | mem->bus.offset = (mem->start << PAGE_SHIFT) + qdev->vram_base; |
59ab4ee0 | 85 | mem->bus.caching = ttm_write_combined; |
f64122c1 | 86 | break; |
283cde69 | 87 | case TTM_PL_PRIV: |
f64122c1 | 88 | mem->bus.is_iomem = true; |
54d04ea8 CK |
89 | mem->bus.offset = (mem->start << PAGE_SHIFT) + |
90 | qdev->surfaceram_base; | |
59ab4ee0 | 91 | mem->bus.caching = ttm_write_combined; |
f64122c1 DA |
92 | break; |
93 | default: | |
94 | return -EINVAL; | |
95 | } | |
96 | return 0; | |
97 | } | |
98 | ||
f64122c1 DA |
99 | /* |
100 | * TTM backend functions. | |
101 | */ | |
8af8a109 | 102 | static void qxl_ttm_backend_destroy(struct ttm_device *bdev, struct ttm_tt *ttm) |
f64122c1 | 103 | { |
881c4117 DA |
104 | ttm_tt_fini(ttm); |
105 | kfree(ttm); | |
f64122c1 DA |
106 | } |
107 | ||
dde5da23 CK |
108 | static struct ttm_tt *qxl_ttm_tt_create(struct ttm_buffer_object *bo, |
109 | uint32_t page_flags) | |
f64122c1 | 110 | { |
881c4117 | 111 | struct ttm_tt *ttm; |
f64122c1 | 112 | |
881c4117 DA |
113 | ttm = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL); |
114 | if (ttm == NULL) | |
f64122c1 | 115 | return NULL; |
e36764ec | 116 | if (ttm_tt_init(ttm, bo, page_flags, ttm_cached, 0)) { |
881c4117 | 117 | kfree(ttm); |
f64122c1 DA |
118 | return NULL; |
119 | } | |
881c4117 | 120 | return ttm; |
f64122c1 DA |
121 | } |
122 | ||
f64122c1 | 123 | static void qxl_bo_move_notify(struct ttm_buffer_object *bo, |
2966141a | 124 | struct ttm_resource *new_mem) |
f64122c1 DA |
125 | { |
126 | struct qxl_bo *qbo; | |
127 | struct qxl_device *qdev; | |
128 | ||
3efe180d | 129 | if (!qxl_ttm_bo_is_qxl_bo(bo) || !bo->resource) |
f64122c1 | 130 | return; |
3ebf1c6d | 131 | qbo = to_qxl_bo(bo); |
e304f8a0 | 132 | qdev = to_qxl(qbo->tbo.base.dev); |
f64122c1 | 133 | |
d3116756 | 134 | if (bo->resource->mem_type == TTM_PL_PRIV && qbo->surface_id) |
f64122c1 DA |
135 | qxl_surface_evict(qdev, qbo, new_mem ? true : false); |
136 | } | |
137 | ||
6d820003 DA |
138 | static int qxl_bo_move(struct ttm_buffer_object *bo, bool evict, |
139 | struct ttm_operation_ctx *ctx, | |
ebdf5651 DA |
140 | struct ttm_resource *new_mem, |
141 | struct ttm_place *hop) | |
6d820003 | 142 | { |
d3116756 | 143 | struct ttm_resource *old_mem = bo->resource; |
6d820003 DA |
144 | int ret; |
145 | ||
b129ff30 MA |
146 | if (!old_mem) { |
147 | if (new_mem->mem_type != TTM_PL_SYSTEM) { | |
148 | hop->mem_type = TTM_PL_SYSTEM; | |
149 | hop->flags = TTM_PL_FLAG_TEMPORARY; | |
150 | return -EMULTIHOP; | |
151 | } | |
152 | ||
153 | ttm_bo_move_null(bo, new_mem); | |
154 | return 0; | |
155 | } | |
156 | ||
f1c68b6a | 157 | qxl_bo_move_notify(bo, new_mem); |
6d820003 DA |
158 | |
159 | ret = ttm_bo_wait_ctx(bo, ctx); | |
160 | if (ret) | |
f1c68b6a | 161 | return ret; |
6d820003 DA |
162 | |
163 | if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) { | |
164 | ttm_bo_move_null(bo, new_mem); | |
165 | return 0; | |
166 | } | |
f1c68b6a | 167 | return ttm_bo_move_memcpy(bo, ctx, new_mem); |
6d820003 DA |
168 | } |
169 | ||
6a6e5988 DA |
170 | static void qxl_bo_delete_mem_notify(struct ttm_buffer_object *bo) |
171 | { | |
f1c68b6a | 172 | qxl_bo_move_notify(bo, NULL); |
6a6e5988 DA |
173 | } |
174 | ||
8af8a109 | 175 | static struct ttm_device_funcs qxl_bo_driver = { |
f64122c1 | 176 | .ttm_tt_create = &qxl_ttm_tt_create, |
dc2caa30 | 177 | .ttm_tt_destroy = &qxl_ttm_backend_destroy, |
a2ab19fe | 178 | .eviction_valuable = ttm_bo_eviction_valuable, |
f64122c1 DA |
179 | .evict_flags = &qxl_evict_flags, |
180 | .move = &qxl_bo_move, | |
f64122c1 | 181 | .io_mem_reserve = &qxl_ttm_io_mem_reserve, |
6a6e5988 | 182 | .delete_mem_notify = &qxl_bo_delete_mem_notify, |
f64122c1 DA |
183 | }; |
184 | ||
ccd0dc43 CK |
185 | static int qxl_ttm_init_mem_type(struct qxl_device *qdev, |
186 | unsigned int type, | |
187 | uint64_t size) | |
188 | { | |
9c3006a4 | 189 | return ttm_range_man_init(&qdev->mman.bdev, type, false, size); |
ccd0dc43 CK |
190 | } |
191 | ||
f64122c1 DA |
192 | int qxl_ttm_init(struct qxl_device *qdev) |
193 | { | |
194 | int r; | |
195 | int num_io_pages; /* != rom->num_io_pages, we include surface0 */ | |
196 | ||
f64122c1 | 197 | /* No others user of address space so set it to 0 */ |
8af8a109 CK |
198 | r = ttm_device_init(&qdev->mman.bdev, &qxl_bo_driver, NULL, |
199 | qdev->ddev.anon_inode->i_mapping, | |
200 | qdev->ddev.vma_offset_manager, | |
201 | false, false); | |
f64122c1 DA |
202 | if (r) { |
203 | DRM_ERROR("failed initializing buffer object driver(%d).\n", r); | |
204 | return r; | |
205 | } | |
206 | /* NOTE: this includes the framebuffer (aka surface 0) */ | |
207 | num_io_pages = qdev->rom->ram_header_offset / PAGE_SIZE; | |
ccd0dc43 | 208 | r = qxl_ttm_init_mem_type(qdev, TTM_PL_VRAM, num_io_pages); |
f64122c1 DA |
209 | if (r) { |
210 | DRM_ERROR("Failed initializing VRAM heap.\n"); | |
211 | return r; | |
212 | } | |
ccd0dc43 CK |
213 | r = qxl_ttm_init_mem_type(qdev, TTM_PL_PRIV, |
214 | qdev->surfaceram_size / PAGE_SIZE); | |
f64122c1 DA |
215 | if (r) { |
216 | DRM_ERROR("Failed initializing Surfaces heap.\n"); | |
217 | return r; | |
218 | } | |
219 | DRM_INFO("qxl: %uM of VRAM memory size\n", | |
1b000494 | 220 | (unsigned int)qdev->vram_size / (1024 * 1024)); |
f64122c1 | 221 | DRM_INFO("qxl: %luM of IO pages memory ready (VRAM domain)\n", |
1b000494 | 222 | ((unsigned int)num_io_pages * PAGE_SIZE) / (1024 * 1024)); |
d9bbf189 | 223 | DRM_INFO("qxl: %uM of Surface memory size\n", |
1b000494 | 224 | (unsigned int)qdev->surfaceram_size / (1024 * 1024)); |
f64122c1 DA |
225 | return 0; |
226 | } | |
227 | ||
228 | void qxl_ttm_fini(struct qxl_device *qdev) | |
229 | { | |
37205891 DA |
230 | ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_VRAM); |
231 | ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_PRIV); | |
8af8a109 | 232 | ttm_device_fini(&qdev->mman.bdev); |
f64122c1 DA |
233 | DRM_INFO("qxl: ttm finalized\n"); |
234 | } | |
235 | ||
7ce84471 | 236 | void qxl_ttm_debugfs_init(struct qxl_device *qdev) |
f64122c1 | 237 | { |
e1adc78c | 238 | #if defined(CONFIG_DEBUG_FS) |
d0719e09 ZR |
239 | ttm_resource_manager_create_debugfs(ttm_manager_type(&qdev->mman.bdev, |
240 | TTM_PL_VRAM), | |
241 | qdev->ddev.primary->debugfs_root, "qxl_mem_mm"); | |
242 | ttm_resource_manager_create_debugfs(ttm_manager_type(&qdev->mman.bdev, | |
243 | TTM_PL_PRIV), | |
244 | qdev->ddev.primary->debugfs_root, "qxl_surf_mm"); | |
e1adc78c | 245 | #endif |
f64122c1 | 246 | } |