drm/radeon/kms: allow "invalid" DB formats as a means to disable DB
[linux-3.10.git] / drivers / gpu / drm / radeon / radeon_drv.c
1 /**
2  * \file radeon_drv.c
3  * ATI Radeon driver
4  *
5  * \author Gareth Hughes <gareth@valinux.com>
6  */
7
8 /*
9  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
10  * All Rights Reserved.
11  *
12  * Permission is hereby granted, free of charge, to any person obtaining a
13  * copy of this software and associated documentation files (the "Software"),
14  * to deal in the Software without restriction, including without limitation
15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16  * and/or sell copies of the Software, and to permit persons to whom the
17  * Software is furnished to do so, subject to the following conditions:
18  *
19  * The above copyright notice and this permission notice (including the next
20  * paragraph) shall be included in all copies or substantial portions of the
21  * Software.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
24  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
26  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
27  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
28  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
29  * OTHER DEALINGS IN THE SOFTWARE.
30  */
31
32 #include "drmP.h"
33 #include "drm.h"
34 #include "radeon_drm.h"
35 #include "radeon_drv.h"
36
37 #include "drm_pciids.h"
38 #include <linux/console.h>
39 #include <linux/module.h>
40
41
42 /*
43  * KMS wrapper.
44  * - 2.0.0 - initial interface
45  * - 2.1.0 - add square tiling interface
46  * - 2.2.0 - add r6xx/r7xx const buffer support
47  * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
48  * - 2.4.0 - add crtc id query
49  * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen
50  * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)
51  *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs
52  *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query
53  *   2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query
54  *   2.10.0 - fusion 2D tiling
55  *   2.11.0 - backend map, initial compute support for the CS checker
56  *   2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
57  *   2.13.0 - virtual memory support, streamout
58  *   2.14.0 - add evergreen tiling informations
59  *   2.15.0 - add max_pipes query
60  *   2.16.0 - fix evergreen 2D tiled surface calculation
61  *   2.17.0 - add STRMOUT_BASE_UPDATE for r7xx
62  *   2.18.0 - r600-eg: allow "invalid" DB formats
63  */
64 #define KMS_DRIVER_MAJOR        2
65 #define KMS_DRIVER_MINOR        18
66 #define KMS_DRIVER_PATCHLEVEL   0
67 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
68 int radeon_driver_unload_kms(struct drm_device *dev);
69 int radeon_driver_firstopen_kms(struct drm_device *dev);
70 void radeon_driver_lastclose_kms(struct drm_device *dev);
71 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
72 void radeon_driver_postclose_kms(struct drm_device *dev,
73                                  struct drm_file *file_priv);
74 void radeon_driver_preclose_kms(struct drm_device *dev,
75                                 struct drm_file *file_priv);
76 int radeon_suspend_kms(struct drm_device *dev, pm_message_t state);
77 int radeon_resume_kms(struct drm_device *dev);
78 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc);
79 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc);
80 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc);
81 int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
82                                     int *max_error,
83                                     struct timeval *vblank_time,
84                                     unsigned flags);
85 void radeon_driver_irq_preinstall_kms(struct drm_device *dev);
86 int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
87 void radeon_driver_irq_uninstall_kms(struct drm_device *dev);
88 irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS);
89 int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
90                          struct drm_file *file_priv);
91 int radeon_gem_object_init(struct drm_gem_object *obj);
92 void radeon_gem_object_free(struct drm_gem_object *obj);
93 int radeon_gem_object_open(struct drm_gem_object *obj,
94                                 struct drm_file *file_priv);
95 void radeon_gem_object_close(struct drm_gem_object *obj,
96                                 struct drm_file *file_priv);
97 extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc,
98                                       int *vpos, int *hpos);
99 extern struct drm_ioctl_desc radeon_ioctls_kms[];
100 extern int radeon_max_kms_ioctl;
101 int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
102 int radeon_mode_dumb_mmap(struct drm_file *filp,
103                           struct drm_device *dev,
104                           uint32_t handle, uint64_t *offset_p);
105 int radeon_mode_dumb_create(struct drm_file *file_priv,
106                             struct drm_device *dev,
107                             struct drm_mode_create_dumb *args);
108 int radeon_mode_dumb_destroy(struct drm_file *file_priv,
109                              struct drm_device *dev,
110                              uint32_t handle);
111 struct dma_buf *radeon_gem_prime_export(struct drm_device *dev,
112                                         struct drm_gem_object *obj,
113                                         int flags);
114 struct drm_gem_object *radeon_gem_prime_import(struct drm_device *dev,
115                                                struct dma_buf *dma_buf);
116
117 #if defined(CONFIG_DEBUG_FS)
118 int radeon_debugfs_init(struct drm_minor *minor);
119 void radeon_debugfs_cleanup(struct drm_minor *minor);
120 #endif
121
122
123 int radeon_no_wb;
124 int radeon_modeset = -1;
125 int radeon_dynclks = -1;
126 int radeon_r4xx_atom = 0;
127 int radeon_agpmode = 0;
128 int radeon_vram_limit = 0;
129 int radeon_gart_size = 512; /* default gart size */
130 int radeon_benchmarking = 0;
131 int radeon_testing = 0;
132 int radeon_connector_table = 0;
133 int radeon_tv = 1;
134 int radeon_audio = 0;
135 int radeon_disp_priority = 0;
136 int radeon_hw_i2c = 0;
137 int radeon_pcie_gen2 = -1;
138 int radeon_msi = -1;
139 int radeon_lockup_timeout = 10000;
140
141 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
142 module_param_named(no_wb, radeon_no_wb, int, 0444);
143
144 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
145 module_param_named(modeset, radeon_modeset, int, 0400);
146
147 MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks");
148 module_param_named(dynclks, radeon_dynclks, int, 0444);
149
150 MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
151 module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
152
153 MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing");
154 module_param_named(vramlimit, radeon_vram_limit, int, 0600);
155
156 MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
157 module_param_named(agpmode, radeon_agpmode, int, 0444);
158
159 MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc)");
160 module_param_named(gartsize, radeon_gart_size, int, 0600);
161
162 MODULE_PARM_DESC(benchmark, "Run benchmark");
163 module_param_named(benchmark, radeon_benchmarking, int, 0444);
164
165 MODULE_PARM_DESC(test, "Run tests");
166 module_param_named(test, radeon_testing, int, 0444);
167
168 MODULE_PARM_DESC(connector_table, "Force connector table");
169 module_param_named(connector_table, radeon_connector_table, int, 0444);
170
171 MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
172 module_param_named(tv, radeon_tv, int, 0444);
173
174 MODULE_PARM_DESC(audio, "Audio enable (1 = enable)");
175 module_param_named(audio, radeon_audio, int, 0444);
176
177 MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
178 module_param_named(disp_priority, radeon_disp_priority, int, 0444);
179
180 MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
181 module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);
182
183 MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
184 module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);
185
186 MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
187 module_param_named(msi, radeon_msi, int, 0444);
188
189 MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (defaul 10000 = 10 seconds, 0 = disable)");
190 module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
191
192 static int radeon_suspend(struct drm_device *dev, pm_message_t state)
193 {
194         drm_radeon_private_t *dev_priv = dev->dev_private;
195
196         if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
197                 return 0;
198
199         /* Disable *all* interrupts */
200         if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
201                 RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
202         RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
203         return 0;
204 }
205
206 static int radeon_resume(struct drm_device *dev)
207 {
208         drm_radeon_private_t *dev_priv = dev->dev_private;
209
210         if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
211                 return 0;
212
213         /* Restore interrupt registers */
214         if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
215                 RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
216         RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
217         return 0;
218 }
219
220 static struct pci_device_id pciidlist[] = {
221         radeon_PCI_IDS
222 };
223
224 #if defined(CONFIG_DRM_RADEON_KMS)
225 MODULE_DEVICE_TABLE(pci, pciidlist);
226 #endif
227
228 static const struct file_operations radeon_driver_old_fops = {
229         .owner = THIS_MODULE,
230         .open = drm_open,
231         .release = drm_release,
232         .unlocked_ioctl = drm_ioctl,
233         .mmap = drm_mmap,
234         .poll = drm_poll,
235         .fasync = drm_fasync,
236         .read = drm_read,
237 #ifdef CONFIG_COMPAT
238         .compat_ioctl = radeon_compat_ioctl,
239 #endif
240         .llseek = noop_llseek,
241 };
242
243 static struct drm_driver driver_old = {
244         .driver_features =
245             DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
246             DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
247         .dev_priv_size = sizeof(drm_radeon_buf_priv_t),
248         .load = radeon_driver_load,
249         .firstopen = radeon_driver_firstopen,
250         .open = radeon_driver_open,
251         .preclose = radeon_driver_preclose,
252         .postclose = radeon_driver_postclose,
253         .lastclose = radeon_driver_lastclose,
254         .unload = radeon_driver_unload,
255         .suspend = radeon_suspend,
256         .resume = radeon_resume,
257         .get_vblank_counter = radeon_get_vblank_counter,
258         .enable_vblank = radeon_enable_vblank,
259         .disable_vblank = radeon_disable_vblank,
260         .master_create = radeon_master_create,
261         .master_destroy = radeon_master_destroy,
262         .irq_preinstall = radeon_driver_irq_preinstall,
263         .irq_postinstall = radeon_driver_irq_postinstall,
264         .irq_uninstall = radeon_driver_irq_uninstall,
265         .irq_handler = radeon_driver_irq_handler,
266         .ioctls = radeon_ioctls,
267         .dma_ioctl = radeon_cp_buffers,
268         .fops = &radeon_driver_old_fops,
269         .name = DRIVER_NAME,
270         .desc = DRIVER_DESC,
271         .date = DRIVER_DATE,
272         .major = DRIVER_MAJOR,
273         .minor = DRIVER_MINOR,
274         .patchlevel = DRIVER_PATCHLEVEL,
275 };
276
277 static struct drm_driver kms_driver;
278
279 static void radeon_kick_out_firmware_fb(struct pci_dev *pdev)
280 {
281         struct apertures_struct *ap;
282         bool primary = false;
283
284         ap = alloc_apertures(1);
285         ap->ranges[0].base = pci_resource_start(pdev, 0);
286         ap->ranges[0].size = pci_resource_len(pdev, 0);
287
288 #ifdef CONFIG_X86
289         primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
290 #endif
291         remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
292         kfree(ap);
293 }
294
295 static int __devinit
296 radeon_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
297 {
298         /* Get rid of things like offb */
299         radeon_kick_out_firmware_fb(pdev);
300
301         return drm_get_pci_dev(pdev, ent, &kms_driver);
302 }
303
304 static void
305 radeon_pci_remove(struct pci_dev *pdev)
306 {
307         struct drm_device *dev = pci_get_drvdata(pdev);
308
309         drm_put_dev(dev);
310 }
311
312 static int
313 radeon_pci_suspend(struct pci_dev *pdev, pm_message_t state)
314 {
315         struct drm_device *dev = pci_get_drvdata(pdev);
316         return radeon_suspend_kms(dev, state);
317 }
318
319 static int
320 radeon_pci_resume(struct pci_dev *pdev)
321 {
322         struct drm_device *dev = pci_get_drvdata(pdev);
323         return radeon_resume_kms(dev);
324 }
325
326 static const struct file_operations radeon_driver_kms_fops = {
327         .owner = THIS_MODULE,
328         .open = drm_open,
329         .release = drm_release,
330         .unlocked_ioctl = drm_ioctl,
331         .mmap = radeon_mmap,
332         .poll = drm_poll,
333         .fasync = drm_fasync,
334         .read = drm_read,
335 #ifdef CONFIG_COMPAT
336         .compat_ioctl = radeon_kms_compat_ioctl,
337 #endif
338 };
339
340 static struct drm_driver kms_driver = {
341         .driver_features =
342             DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
343             DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED | DRIVER_GEM |
344             DRIVER_PRIME,
345         .dev_priv_size = 0,
346         .load = radeon_driver_load_kms,
347         .firstopen = radeon_driver_firstopen_kms,
348         .open = radeon_driver_open_kms,
349         .preclose = radeon_driver_preclose_kms,
350         .postclose = radeon_driver_postclose_kms,
351         .lastclose = radeon_driver_lastclose_kms,
352         .unload = radeon_driver_unload_kms,
353         .suspend = radeon_suspend_kms,
354         .resume = radeon_resume_kms,
355         .get_vblank_counter = radeon_get_vblank_counter_kms,
356         .enable_vblank = radeon_enable_vblank_kms,
357         .disable_vblank = radeon_disable_vblank_kms,
358         .get_vblank_timestamp = radeon_get_vblank_timestamp_kms,
359         .get_scanout_position = radeon_get_crtc_scanoutpos,
360 #if defined(CONFIG_DEBUG_FS)
361         .debugfs_init = radeon_debugfs_init,
362         .debugfs_cleanup = radeon_debugfs_cleanup,
363 #endif
364         .irq_preinstall = radeon_driver_irq_preinstall_kms,
365         .irq_postinstall = radeon_driver_irq_postinstall_kms,
366         .irq_uninstall = radeon_driver_irq_uninstall_kms,
367         .irq_handler = radeon_driver_irq_handler_kms,
368         .ioctls = radeon_ioctls_kms,
369         .gem_init_object = radeon_gem_object_init,
370         .gem_free_object = radeon_gem_object_free,
371         .gem_open_object = radeon_gem_object_open,
372         .gem_close_object = radeon_gem_object_close,
373         .dma_ioctl = radeon_dma_ioctl_kms,
374         .dumb_create = radeon_mode_dumb_create,
375         .dumb_map_offset = radeon_mode_dumb_mmap,
376         .dumb_destroy = radeon_mode_dumb_destroy,
377         .fops = &radeon_driver_kms_fops,
378
379         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
380         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
381         .gem_prime_export = radeon_gem_prime_export,
382         .gem_prime_import = radeon_gem_prime_import,
383
384         .name = DRIVER_NAME,
385         .desc = DRIVER_DESC,
386         .date = DRIVER_DATE,
387         .major = KMS_DRIVER_MAJOR,
388         .minor = KMS_DRIVER_MINOR,
389         .patchlevel = KMS_DRIVER_PATCHLEVEL,
390 };
391
392 static struct drm_driver *driver;
393 static struct pci_driver *pdriver;
394
395 static struct pci_driver radeon_pci_driver = {
396         .name = DRIVER_NAME,
397         .id_table = pciidlist,
398 };
399
400 static struct pci_driver radeon_kms_pci_driver = {
401         .name = DRIVER_NAME,
402         .id_table = pciidlist,
403         .probe = radeon_pci_probe,
404         .remove = radeon_pci_remove,
405         .suspend = radeon_pci_suspend,
406         .resume = radeon_pci_resume,
407 };
408
409 static int __init radeon_init(void)
410 {
411         driver = &driver_old;
412         pdriver = &radeon_pci_driver;
413         driver->num_ioctls = radeon_max_ioctl;
414 #ifdef CONFIG_VGA_CONSOLE
415         if (vgacon_text_force() && radeon_modeset == -1) {
416                 DRM_INFO("VGACON disable radeon kernel modesetting.\n");
417                 driver = &driver_old;
418                 pdriver = &radeon_pci_driver;
419                 driver->driver_features &= ~DRIVER_MODESET;
420                 radeon_modeset = 0;
421         }
422 #endif
423         /* if enabled by default */
424         if (radeon_modeset == -1) {
425 #ifdef CONFIG_DRM_RADEON_KMS
426                 DRM_INFO("radeon defaulting to kernel modesetting.\n");
427                 radeon_modeset = 1;
428 #else
429                 DRM_INFO("radeon defaulting to userspace modesetting.\n");
430                 radeon_modeset = 0;
431 #endif
432         }
433         if (radeon_modeset == 1) {
434                 DRM_INFO("radeon kernel modesetting enabled.\n");
435                 driver = &kms_driver;
436                 pdriver = &radeon_kms_pci_driver;
437                 driver->driver_features |= DRIVER_MODESET;
438                 driver->num_ioctls = radeon_max_kms_ioctl;
439                 radeon_register_atpx_handler();
440         }
441         /* if the vga console setting is enabled still
442          * let modprobe override it */
443         return drm_pci_init(driver, pdriver);
444 }
445
446 static void __exit radeon_exit(void)
447 {
448         drm_pci_exit(driver, pdriver);
449         radeon_unregister_atpx_handler();
450 }
451
452 module_init(radeon_init);
453 module_exit(radeon_exit);
454
455 MODULE_AUTHOR(DRIVER_AUTHOR);
456 MODULE_DESCRIPTION(DRIVER_DESC);
457 MODULE_LICENSE("GPL and additional rights");