blob: b2977a18193589250f1c0e69814eb72ec05ef05e [file] [log] [blame]
Dave Airlief64122c2013-02-25 14:47:55 +10001/*
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
26#include "qxl_drv.h"
27#include "qxl_object.h"
28
Dave Airlie5ff91e42013-07-05 10:20:33 +100029#include <drm/drm_crtc_helper.h>
Dave Airlief64122c2013-02-25 14:47:55 +100030#include <linux/io-mapping.h>
31
32int qxl_log_level;
33
34static void qxl_dump_mode(struct qxl_device *qdev, void *p)
35{
36 struct qxl_mode *m = p;
37 DRM_DEBUG_KMS("%d: %dx%d %d bits, stride %d, %dmm x %dmm, orientation %d\n",
38 m->id, m->x_res, m->y_res, m->bits, m->stride, m->x_mili,
39 m->y_mili, m->orientation);
40}
41
42static bool qxl_check_device(struct qxl_device *qdev)
43{
44 struct qxl_rom *rom = qdev->rom;
45 int mode_offset;
46 int i;
47
48 if (rom->magic != 0x4f525851) {
49 DRM_ERROR("bad rom signature %x\n", rom->magic);
50 return false;
51 }
52
53 DRM_INFO("Device Version %d.%d\n", rom->id, rom->update_id);
54 DRM_INFO("Compression level %d log level %d\n", rom->compression_level,
55 rom->log_level);
56 DRM_INFO("Currently using mode #%d, list at 0x%x\n",
57 rom->mode, rom->modes_offset);
58 DRM_INFO("%d io pages at offset 0x%x\n",
59 rom->num_io_pages, rom->pages_offset);
60 DRM_INFO("%d byte draw area at offset 0x%x\n",
61 rom->surface0_area_size, rom->draw_area_offset);
62
63 qdev->vram_size = rom->surface0_area_size;
64 DRM_INFO("RAM header offset: 0x%x\n", rom->ram_header_offset);
65
66 mode_offset = rom->modes_offset / 4;
67 qdev->mode_info.num_modes = ((u32 *)rom)[mode_offset];
68 DRM_INFO("rom modes offset 0x%x for %d modes\n", rom->modes_offset,
69 qdev->mode_info.num_modes);
70 qdev->mode_info.modes = (void *)((uint32_t *)rom + mode_offset + 1);
71 for (i = 0; i < qdev->mode_info.num_modes; i++)
72 qxl_dump_mode(qdev, qdev->mode_info.modes + i);
73 return true;
74}
75
Dave Airliec9fdda22013-07-04 14:57:58 +100076static void setup_hw_slot(struct qxl_device *qdev, int slot_index,
77 struct qxl_memslot *slot)
78{
79 qdev->ram_header->mem_slot.mem_start = slot->start_phys_addr;
80 qdev->ram_header->mem_slot.mem_end = slot->end_phys_addr;
81 qxl_io_memslot_add(qdev, slot_index);
82}
83
Dave Airlief64122c2013-02-25 14:47:55 +100084static uint8_t setup_slot(struct qxl_device *qdev, uint8_t slot_index_offset,
85 unsigned long start_phys_addr, unsigned long end_phys_addr)
86{
87 uint64_t high_bits;
88 struct qxl_memslot *slot;
89 uint8_t slot_index;
Dave Airlief64122c2013-02-25 14:47:55 +100090
91 slot_index = qdev->rom->slots_start + slot_index_offset;
92 slot = &qdev->mem_slots[slot_index];
93 slot->start_phys_addr = start_phys_addr;
94 slot->end_phys_addr = end_phys_addr;
Dave Airliec9fdda22013-07-04 14:57:58 +100095
96 setup_hw_slot(qdev, slot_index, slot);
97
Dave Airlief64122c2013-02-25 14:47:55 +100098 slot->generation = qdev->rom->slot_generation;
99 high_bits = slot_index << qdev->slot_gen_bits;
100 high_bits |= slot->generation;
101 high_bits <<= (64 - (qdev->slot_gen_bits + qdev->slot_id_bits));
102 slot->high_bits = high_bits;
103 return slot_index;
104}
105
Dave Airliec9fdda22013-07-04 14:57:58 +1000106void qxl_reinit_memslots(struct qxl_device *qdev)
107{
108 setup_hw_slot(qdev, qdev->main_mem_slot, &qdev->mem_slots[qdev->main_mem_slot]);
109 setup_hw_slot(qdev, qdev->surfaces_mem_slot, &qdev->mem_slots[qdev->surfaces_mem_slot]);
110}
111
Dave Airlief64122c2013-02-25 14:47:55 +1000112static void qxl_gc_work(struct work_struct *work)
113{
114 struct qxl_device *qdev = container_of(work, struct qxl_device, gc_work);
115 qxl_garbage_collect(qdev);
116}
117
Rashika0662e4c2014-01-06 20:49:34 +0530118static int qxl_device_init(struct qxl_device *qdev,
Dave Airlief64122c2013-02-25 14:47:55 +1000119 struct drm_device *ddev,
120 struct pci_dev *pdev,
121 unsigned long flags)
122{
Gerd Hoffmann35541782013-10-11 10:01:10 +0200123 int r, sb;
Dave Airlief64122c2013-02-25 14:47:55 +1000124
125 qdev->dev = &pdev->dev;
126 qdev->ddev = ddev;
127 qdev->pdev = pdev;
128 qdev->flags = flags;
129
130 mutex_init(&qdev->gem.mutex);
131 mutex_init(&qdev->update_area_mutex);
132 mutex_init(&qdev->release_mutex);
133 mutex_init(&qdev->surf_evict_mutex);
134 INIT_LIST_HEAD(&qdev->gem.objects);
135
136 qdev->rom_base = pci_resource_start(pdev, 2);
137 qdev->rom_size = pci_resource_len(pdev, 2);
138 qdev->vram_base = pci_resource_start(pdev, 0);
Dave Airlief64122c2013-02-25 14:47:55 +1000139 qdev->io_base = pci_resource_start(pdev, 3);
140
141 qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0));
Gerd Hoffmann35541782013-10-11 10:01:10 +0200142
143 if (pci_resource_len(pdev, 4) > 0) {
144 /* 64bit surface bar present */
145 sb = 4;
146 qdev->surfaceram_base = pci_resource_start(pdev, sb);
147 qdev->surfaceram_size = pci_resource_len(pdev, sb);
148 qdev->surface_mapping =
149 io_mapping_create_wc(qdev->surfaceram_base,
150 qdev->surfaceram_size);
151 }
152 if (qdev->surface_mapping == NULL) {
153 /* 64bit surface bar not present (or mapping failed) */
154 sb = 1;
155 qdev->surfaceram_base = pci_resource_start(pdev, sb);
156 qdev->surfaceram_size = pci_resource_len(pdev, sb);
157 qdev->surface_mapping =
158 io_mapping_create_wc(qdev->surfaceram_base,
159 qdev->surfaceram_size);
160 }
161
162 DRM_DEBUG_KMS("qxl: vram %llx-%llx(%dM %dk), surface %llx-%llx(%dM %dk, %s)\n",
Dave Airlie970fa982013-05-31 12:45:09 +1000163 (unsigned long long)qdev->vram_base,
164 (unsigned long long)pci_resource_end(pdev, 0),
Dave Airlief64122c2013-02-25 14:47:55 +1000165 (int)pci_resource_len(pdev, 0) / 1024 / 1024,
166 (int)pci_resource_len(pdev, 0) / 1024,
Dave Airlie970fa982013-05-31 12:45:09 +1000167 (unsigned long long)qdev->surfaceram_base,
Gerd Hoffmann35541782013-10-11 10:01:10 +0200168 (unsigned long long)pci_resource_end(pdev, sb),
Dave Airlief64122c2013-02-25 14:47:55 +1000169 (int)qdev->surfaceram_size / 1024 / 1024,
Gerd Hoffmann35541782013-10-11 10:01:10 +0200170 (int)qdev->surfaceram_size / 1024,
171 (sb == 4) ? "64bit" : "32bit");
Dave Airlief64122c2013-02-25 14:47:55 +1000172
173 qdev->rom = ioremap(qdev->rom_base, qdev->rom_size);
174 if (!qdev->rom) {
175 pr_err("Unable to ioremap ROM\n");
176 return -ENOMEM;
177 }
178
179 qxl_check_device(qdev);
180
181 r = qxl_bo_init(qdev);
182 if (r) {
183 DRM_ERROR("bo init failed %d\n", r);
184 return r;
185 }
186
187 qdev->ram_header = ioremap(qdev->vram_base +
188 qdev->rom->ram_header_offset,
189 sizeof(*qdev->ram_header));
190
191 qdev->command_ring = qxl_ring_create(&(qdev->ram_header->cmd_ring_hdr),
192 sizeof(struct qxl_command),
193 QXL_COMMAND_RING_SIZE,
194 qdev->io_base + QXL_IO_NOTIFY_CMD,
195 false,
196 &qdev->display_event);
197
198 qdev->cursor_ring = qxl_ring_create(
199 &(qdev->ram_header->cursor_ring_hdr),
200 sizeof(struct qxl_command),
201 QXL_CURSOR_RING_SIZE,
202 qdev->io_base + QXL_IO_NOTIFY_CMD,
203 false,
204 &qdev->cursor_event);
205
206 qdev->release_ring = qxl_ring_create(
207 &(qdev->ram_header->release_ring_hdr),
208 sizeof(uint64_t),
209 QXL_RELEASE_RING_SIZE, 0, true,
210 NULL);
211
212 /* TODO - slot initialization should happen on reset. where is our
213 * reset handler? */
214 qdev->n_mem_slots = qdev->rom->slots_end;
215 qdev->slot_gen_bits = qdev->rom->slot_gen_bits;
216 qdev->slot_id_bits = qdev->rom->slot_id_bits;
217 qdev->va_slot_mask =
218 (~(uint64_t)0) >> (qdev->slot_id_bits + qdev->slot_gen_bits);
219
220 qdev->mem_slots =
221 kmalloc(qdev->n_mem_slots * sizeof(struct qxl_memslot),
222 GFP_KERNEL);
223
224 idr_init(&qdev->release_idr);
225 spin_lock_init(&qdev->release_idr_lock);
Maarten Lankhorst2f453ed2014-04-02 12:40:05 +0200226 spin_lock_init(&qdev->release_lock);
Dave Airlief64122c2013-02-25 14:47:55 +1000227
228 idr_init(&qdev->surf_id_idr);
229 spin_lock_init(&qdev->surf_id_idr_lock);
230
231 mutex_init(&qdev->async_io_mutex);
232
233 /* reset the device into a known state - no memslots, no primary
234 * created, no surfaces. */
235 qxl_io_reset(qdev);
236
237 /* must initialize irq before first async io - slot creation */
238 r = qxl_irq_init(qdev);
239 if (r)
240 return r;
241
242 /*
243 * Note that virtual is surface0. We rely on the single ioremap done
244 * before.
245 */
246 qdev->main_mem_slot = setup_slot(qdev, 0,
247 (unsigned long)qdev->vram_base,
248 (unsigned long)qdev->vram_base + qdev->rom->ram_header_offset);
249 qdev->surfaces_mem_slot = setup_slot(qdev, 1,
250 (unsigned long)qdev->surfaceram_base,
251 (unsigned long)qdev->surfaceram_base + qdev->surfaceram_size);
Gerd Hoffmannd9bbf182013-10-11 10:01:11 +0200252 DRM_INFO("main mem slot %d [%lx,%x]\n",
253 qdev->main_mem_slot,
254 (unsigned long)qdev->vram_base, qdev->rom->ram_header_offset);
255 DRM_INFO("surface mem slot %d [%lx,%lx]\n",
256 qdev->surfaces_mem_slot,
257 (unsigned long)qdev->surfaceram_base,
258 (unsigned long)qdev->surfaceram_size);
Dave Airlief64122c2013-02-25 14:47:55 +1000259
260
261 qdev->gc_queue = create_singlethread_workqueue("qxl_gc");
262 INIT_WORK(&qdev->gc_work, qxl_gc_work);
263
264 r = qxl_fb_init(qdev);
265 if (r)
266 return r;
267
268 return 0;
269}
270
Dave Airlie6d01f1f2013-04-16 13:24:25 +1000271static void qxl_device_fini(struct qxl_device *qdev)
Dave Airlief64122c2013-02-25 14:47:55 +1000272{
273 if (qdev->current_release_bo[0])
274 qxl_bo_unref(&qdev->current_release_bo[0]);
275 if (qdev->current_release_bo[1])
276 qxl_bo_unref(&qdev->current_release_bo[1]);
277 flush_workqueue(qdev->gc_queue);
278 destroy_workqueue(qdev->gc_queue);
279 qdev->gc_queue = NULL;
280
281 qxl_ring_free(qdev->command_ring);
282 qxl_ring_free(qdev->cursor_ring);
283 qxl_ring_free(qdev->release_ring);
284 qxl_bo_fini(qdev);
285 io_mapping_free(qdev->surface_mapping);
286 io_mapping_free(qdev->vram_mapping);
287 iounmap(qdev->ram_header);
288 iounmap(qdev->rom);
289 qdev->rom = NULL;
290 qdev->mode_info.modes = NULL;
291 qdev->mode_info.num_modes = 0;
292 qxl_debugfs_remove_files(qdev);
293}
294
295int qxl_driver_unload(struct drm_device *dev)
296{
297 struct qxl_device *qdev = dev->dev_private;
298
299 if (qdev == NULL)
300 return 0;
Andreas Pokorny058e9f52014-08-08 10:40:55 +0200301
302 drm_vblank_cleanup(dev);
303
Dave Airlief64122c2013-02-25 14:47:55 +1000304 qxl_modeset_fini(qdev);
305 qxl_device_fini(qdev);
306
307 kfree(qdev);
308 dev->dev_private = NULL;
309 return 0;
310}
311
312int qxl_driver_load(struct drm_device *dev, unsigned long flags)
313{
314 struct qxl_device *qdev;
315 int r;
316
317 /* require kms */
318 if (!drm_core_check_feature(dev, DRIVER_MODESET))
319 return -ENODEV;
320
321 qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
322 if (qdev == NULL)
323 return -ENOMEM;
324
325 dev->dev_private = qdev;
326
327 r = qxl_device_init(qdev, dev, dev->pdev, flags);
328 if (r)
329 goto out;
330
Andreas Pokorny058e9f52014-08-08 10:40:55 +0200331 r = drm_vblank_init(dev, 1);
332 if (r)
333 goto unload;
334
Dave Airlief64122c2013-02-25 14:47:55 +1000335 r = qxl_modeset_init(qdev);
Andreas Pokorny058e9f52014-08-08 10:40:55 +0200336 if (r)
337 goto unload;
Dave Airlief64122c2013-02-25 14:47:55 +1000338
Dave Airlie5ff91e42013-07-05 10:20:33 +1000339 drm_kms_helper_poll_init(qdev->ddev);
340
Dave Airlief64122c2013-02-25 14:47:55 +1000341 return 0;
Andreas Pokorny058e9f52014-08-08 10:40:55 +0200342unload:
343 qxl_driver_unload(dev);
344
Dave Airlief64122c2013-02-25 14:47:55 +1000345out:
346 kfree(qdev);
347 return r;
348}
349
350