2 * Copyright 2013 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Dave Airlie
26 #include <linux/delay.h>
29 #include <drm/drm_file.h>
30 #include <drm/drm_debugfs.h>
31 #include <drm/qxl_drm.h>
32 #include <drm/ttm/ttm_bo_api.h>
33 #include <drm/ttm/ttm_bo_driver.h>
34 #include <drm/ttm/ttm_placement.h>
37 #include "qxl_object.h"
39 static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev)
41 struct qxl_mman *mman;
42 struct qxl_device *qdev;
44 mman = container_of(bdev, struct qxl_mman, bdev);
45 qdev = container_of(mman, struct qxl_device, mman);
49 static void qxl_evict_flags(struct ttm_buffer_object *bo,
50 struct ttm_placement *placement)
53 static const struct ttm_place placements = {
56 .mem_type = TTM_PL_SYSTEM,
60 if (!qxl_ttm_bo_is_qxl_bo(bo)) {
61 placement->placement = &placements;
62 placement->busy_placement = &placements;
63 placement->num_placement = 1;
64 placement->num_busy_placement = 1;
68 qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU);
69 *placement = qbo->placement;
72 int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
73 struct ttm_resource *mem)
75 struct qxl_device *qdev = qxl_get_qdev(bdev);
77 switch (mem->mem_type) {
82 mem->bus.is_iomem = true;
83 mem->bus.offset = (mem->start << PAGE_SHIFT) + qdev->vram_base;
84 mem->bus.caching = ttm_cached;
87 mem->bus.is_iomem = true;
88 mem->bus.offset = (mem->start << PAGE_SHIFT) +
89 qdev->surfaceram_base;
90 mem->bus.caching = ttm_cached;
99 * TTM backend functions.
101 static void qxl_ttm_backend_destroy(struct ttm_bo_device *bdev,
104 ttm_tt_destroy_common(bdev, ttm);
109 static struct ttm_tt *qxl_ttm_tt_create(struct ttm_buffer_object *bo,
114 ttm = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL);
117 if (ttm_tt_init(ttm, bo, page_flags, ttm_cached)) {
124 static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
126 struct ttm_resource *new_mem)
129 struct qxl_device *qdev;
131 if (!qxl_ttm_bo_is_qxl_bo(bo))
134 qdev = to_qxl(qbo->tbo.base.dev);
136 if (bo->mem.mem_type == TTM_PL_PRIV && qbo->surface_id)
137 qxl_surface_evict(qdev, qbo, new_mem ? true : false);
140 static int qxl_bo_move(struct ttm_buffer_object *bo, bool evict,
141 struct ttm_operation_ctx *ctx,
142 struct ttm_resource *new_mem,
143 struct ttm_place *hop)
145 struct ttm_resource *old_mem = &bo->mem;
148 qxl_bo_move_notify(bo, evict, new_mem);
150 ret = ttm_bo_wait_ctx(bo, ctx);
154 if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
155 ttm_bo_move_null(bo, new_mem);
158 ret = ttm_bo_move_memcpy(bo, ctx, new_mem);
161 swap(*new_mem, bo->mem);
162 qxl_bo_move_notify(bo, false, new_mem);
163 swap(*new_mem, bo->mem);
168 static void qxl_bo_delete_mem_notify(struct ttm_buffer_object *bo)
170 qxl_bo_move_notify(bo, false, NULL);
173 static struct ttm_bo_driver qxl_bo_driver = {
174 .ttm_tt_create = &qxl_ttm_tt_create,
175 .ttm_tt_destroy = &qxl_ttm_backend_destroy,
176 .eviction_valuable = ttm_bo_eviction_valuable,
177 .evict_flags = &qxl_evict_flags,
178 .move = &qxl_bo_move,
179 .io_mem_reserve = &qxl_ttm_io_mem_reserve,
180 .delete_mem_notify = &qxl_bo_delete_mem_notify,
183 static int qxl_ttm_init_mem_type(struct qxl_device *qdev,
187 return ttm_range_man_init(&qdev->mman.bdev, type, false, size);
190 int qxl_ttm_init(struct qxl_device *qdev)
193 int num_io_pages; /* != rom->num_io_pages, we include surface0 */
195 /* No others user of address space so set it to 0 */
196 r = ttm_bo_device_init(&qdev->mman.bdev, &qxl_bo_driver, NULL,
197 qdev->ddev.anon_inode->i_mapping,
198 qdev->ddev.vma_offset_manager,
201 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
204 /* NOTE: this includes the framebuffer (aka surface 0) */
205 num_io_pages = qdev->rom->ram_header_offset / PAGE_SIZE;
206 r = qxl_ttm_init_mem_type(qdev, TTM_PL_VRAM, num_io_pages);
208 DRM_ERROR("Failed initializing VRAM heap.\n");
211 r = qxl_ttm_init_mem_type(qdev, TTM_PL_PRIV,
212 qdev->surfaceram_size / PAGE_SIZE);
214 DRM_ERROR("Failed initializing Surfaces heap.\n");
217 DRM_INFO("qxl: %uM of VRAM memory size\n",
218 (unsigned int)qdev->vram_size / (1024 * 1024));
219 DRM_INFO("qxl: %luM of IO pages memory ready (VRAM domain)\n",
220 ((unsigned int)num_io_pages * PAGE_SIZE) / (1024 * 1024));
221 DRM_INFO("qxl: %uM of Surface memory size\n",
222 (unsigned int)qdev->surfaceram_size / (1024 * 1024));
226 void qxl_ttm_fini(struct qxl_device *qdev)
228 ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_VRAM);
229 ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_PRIV);
230 ttm_bo_device_release(&qdev->mman.bdev);
231 DRM_INFO("qxl: ttm finalized\n");
234 #define QXL_DEBUGFS_MEM_TYPES 2
236 #if defined(CONFIG_DEBUG_FS)
237 static int qxl_mm_dump_table(struct seq_file *m, void *data)
239 struct drm_info_node *node = (struct drm_info_node *)m->private;
240 struct ttm_resource_manager *man = (struct ttm_resource_manager *)node->info_ent->data;
241 struct drm_printer p = drm_seq_file_printer(m);
243 ttm_resource_manager_debug(man, &p);
248 void qxl_ttm_debugfs_init(struct qxl_device *qdev)
250 #if defined(CONFIG_DEBUG_FS)
251 static struct drm_info_list qxl_mem_types_list[QXL_DEBUGFS_MEM_TYPES];
252 static char qxl_mem_types_names[QXL_DEBUGFS_MEM_TYPES][32];
255 for (i = 0; i < QXL_DEBUGFS_MEM_TYPES; i++) {
257 sprintf(qxl_mem_types_names[i], "qxl_mem_mm");
259 sprintf(qxl_mem_types_names[i], "qxl_surf_mm");
260 qxl_mem_types_list[i].name = qxl_mem_types_names[i];
261 qxl_mem_types_list[i].show = &qxl_mm_dump_table;
262 qxl_mem_types_list[i].driver_features = 0;
264 qxl_mem_types_list[i].data = ttm_manager_type(&qdev->mman.bdev, TTM_PL_VRAM);
266 qxl_mem_types_list[i].data = ttm_manager_type(&qdev->mman.bdev, TTM_PL_PRIV);
269 qxl_debugfs_add_files(qdev, qxl_mem_types_list, i);