coda: move backing-dev.h kernel include inside __KERNEL__
[kernel.git] / drivers / gpu / drm / radeon / radeon_kms.c
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  * Copyright 2009 Jerome Glisse.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  *          Jerome Glisse
27  */
28 #include "drmP.h"
29 #include "drm_sarea.h"
30 #include "radeon.h"
31 #include "radeon_drm.h"
32
33 #include <linux/vga_switcheroo.h>
34 #include <linux/slab.h>
35
36 int radeon_driver_unload_kms(struct drm_device *dev)
37 {
38         struct radeon_device *rdev = dev->dev_private;
39
40         if (rdev == NULL)
41                 return 0;
42         radeon_modeset_fini(rdev);
43         radeon_device_fini(rdev);
44         kfree(rdev);
45         dev->dev_private = NULL;
46         return 0;
47 }
48
49 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
50 {
51         struct radeon_device *rdev;
52         int r;
53
54         rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
55         if (rdev == NULL) {
56                 return -ENOMEM;
57         }
58         dev->dev_private = (void *)rdev;
59
60         /* update BUS flag */
61         if (drm_device_is_agp(dev)) {
62                 flags |= RADEON_IS_AGP;
63         } else if (drm_device_is_pcie(dev)) {
64                 flags |= RADEON_IS_PCIE;
65         } else {
66                 flags |= RADEON_IS_PCI;
67         }
68
69         /* radeon_device_init should report only fatal error
70          * like memory allocation failure or iomapping failure,
71          * or memory manager initialization failure, it must
72          * properly initialize the GPU MC controller and permit
73          * VRAM allocation
74          */
75         r = radeon_device_init(rdev, dev, dev->pdev, flags);
76         if (r) {
77                 dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
78                 goto out;
79         }
80         /* Again modeset_init should fail only on fatal error
81          * otherwise it should provide enough functionalities
82          * for shadowfb to run
83          */
84         r = radeon_modeset_init(rdev);
85         if (r)
86                 dev_err(&dev->pdev->dev, "Fatal error during modeset init\n");
87 out:
88         if (r)
89                 radeon_driver_unload_kms(dev);
90         return r;
91 }
92
93
94 /*
95  * Userspace get informations ioctl
96  */
97 int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
98 {
99         struct radeon_device *rdev = dev->dev_private;
100         struct drm_radeon_info *info;
101         uint32_t *value_ptr;
102         uint32_t value;
103
104         info = data;
105         value_ptr = (uint32_t *)((unsigned long)info->value);
106         switch (info->request) {
107         case RADEON_INFO_DEVICE_ID:
108                 value = dev->pci_device;
109                 break;
110         case RADEON_INFO_NUM_GB_PIPES:
111                 value = rdev->num_gb_pipes;
112                 break;
113         case RADEON_INFO_NUM_Z_PIPES:
114                 value = rdev->num_z_pipes;
115                 break;
116         case RADEON_INFO_ACCEL_WORKING:
117                 value = rdev->accel_working;
118                 break;
119         default:
120                 DRM_DEBUG("Invalid request %d\n", info->request);
121                 return -EINVAL;
122         }
123         if (DRM_COPY_TO_USER(value_ptr, &value, sizeof(uint32_t))) {
124                 DRM_ERROR("copy_to_user\n");
125                 return -EFAULT;
126         }
127         return 0;
128 }
129
130
131 /*
132  * Outdated mess for old drm with Xorg being in charge (void function now).
133  */
134 int radeon_driver_firstopen_kms(struct drm_device *dev)
135 {
136         return 0;
137 }
138
139
140 void radeon_driver_lastclose_kms(struct drm_device *dev)
141 {
142         vga_switcheroo_process_delayed_switch();
143 }
144
145 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
146 {
147         return 0;
148 }
149
150 void radeon_driver_postclose_kms(struct drm_device *dev,
151                                  struct drm_file *file_priv)
152 {
153 }
154
155 void radeon_driver_preclose_kms(struct drm_device *dev,
156                                 struct drm_file *file_priv)
157 {
158 }
159
160
161 /*
162  * VBlank related functions.
163  */
164 u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc)
165 {
166         struct radeon_device *rdev = dev->dev_private;
167
168         if (crtc < 0 || crtc > 1) {
169                 DRM_ERROR("Invalid crtc %d\n", crtc);
170                 return -EINVAL;
171         }
172
173         return radeon_get_vblank_counter(rdev, crtc);
174 }
175
176 int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
177 {
178         struct radeon_device *rdev = dev->dev_private;
179
180         if (crtc < 0 || crtc > 1) {
181                 DRM_ERROR("Invalid crtc %d\n", crtc);
182                 return -EINVAL;
183         }
184
185         rdev->irq.crtc_vblank_int[crtc] = true;
186
187         return radeon_irq_set(rdev);
188 }
189
190 void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
191 {
192         struct radeon_device *rdev = dev->dev_private;
193
194         if (crtc < 0 || crtc > 1) {
195                 DRM_ERROR("Invalid crtc %d\n", crtc);
196                 return;
197         }
198
199         rdev->irq.crtc_vblank_int[crtc] = false;
200
201         radeon_irq_set(rdev);
202 }
203
204
205 /*
206  * IOCTL.
207  */
208 int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
209                          struct drm_file *file_priv)
210 {
211         /* Not valid in KMS. */
212         return -EINVAL;
213 }
214
215 #define KMS_INVALID_IOCTL(name)                                         \
216 int name(struct drm_device *dev, void *data, struct drm_file *file_priv)\
217 {                                                                       \
218         DRM_ERROR("invalid ioctl with kms %s\n", __func__);             \
219         return -EINVAL;                                                 \
220 }
221
222 /*
223  * All these ioctls are invalid in kms world.
224  */
225 KMS_INVALID_IOCTL(radeon_cp_init_kms)
226 KMS_INVALID_IOCTL(radeon_cp_start_kms)
227 KMS_INVALID_IOCTL(radeon_cp_stop_kms)
228 KMS_INVALID_IOCTL(radeon_cp_reset_kms)
229 KMS_INVALID_IOCTL(radeon_cp_idle_kms)
230 KMS_INVALID_IOCTL(radeon_cp_resume_kms)
231 KMS_INVALID_IOCTL(radeon_engine_reset_kms)
232 KMS_INVALID_IOCTL(radeon_fullscreen_kms)
233 KMS_INVALID_IOCTL(radeon_cp_swap_kms)
234 KMS_INVALID_IOCTL(radeon_cp_clear_kms)
235 KMS_INVALID_IOCTL(radeon_cp_vertex_kms)
236 KMS_INVALID_IOCTL(radeon_cp_indices_kms)
237 KMS_INVALID_IOCTL(radeon_cp_texture_kms)
238 KMS_INVALID_IOCTL(radeon_cp_stipple_kms)
239 KMS_INVALID_IOCTL(radeon_cp_indirect_kms)
240 KMS_INVALID_IOCTL(radeon_cp_vertex2_kms)
241 KMS_INVALID_IOCTL(radeon_cp_cmdbuf_kms)
242 KMS_INVALID_IOCTL(radeon_cp_getparam_kms)
243 KMS_INVALID_IOCTL(radeon_cp_flip_kms)
244 KMS_INVALID_IOCTL(radeon_mem_alloc_kms)
245 KMS_INVALID_IOCTL(radeon_mem_free_kms)
246 KMS_INVALID_IOCTL(radeon_mem_init_heap_kms)
247 KMS_INVALID_IOCTL(radeon_irq_emit_kms)
248 KMS_INVALID_IOCTL(radeon_irq_wait_kms)
249 KMS_INVALID_IOCTL(radeon_cp_setparam_kms)
250 KMS_INVALID_IOCTL(radeon_surface_alloc_kms)
251 KMS_INVALID_IOCTL(radeon_surface_free_kms)
252
253
254 struct drm_ioctl_desc radeon_ioctls_kms[] = {
255         DRM_IOCTL_DEF(DRM_RADEON_CP_INIT, radeon_cp_init_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
256         DRM_IOCTL_DEF(DRM_RADEON_CP_START, radeon_cp_start_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
257         DRM_IOCTL_DEF(DRM_RADEON_CP_STOP, radeon_cp_stop_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
258         DRM_IOCTL_DEF(DRM_RADEON_CP_RESET, radeon_cp_reset_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
259         DRM_IOCTL_DEF(DRM_RADEON_CP_IDLE, radeon_cp_idle_kms, DRM_AUTH),
260         DRM_IOCTL_DEF(DRM_RADEON_CP_RESUME, radeon_cp_resume_kms, DRM_AUTH),
261         DRM_IOCTL_DEF(DRM_RADEON_RESET, radeon_engine_reset_kms, DRM_AUTH),
262         DRM_IOCTL_DEF(DRM_RADEON_FULLSCREEN, radeon_fullscreen_kms, DRM_AUTH),
263         DRM_IOCTL_DEF(DRM_RADEON_SWAP, radeon_cp_swap_kms, DRM_AUTH),
264         DRM_IOCTL_DEF(DRM_RADEON_CLEAR, radeon_cp_clear_kms, DRM_AUTH),
265         DRM_IOCTL_DEF(DRM_RADEON_VERTEX, radeon_cp_vertex_kms, DRM_AUTH),
266         DRM_IOCTL_DEF(DRM_RADEON_INDICES, radeon_cp_indices_kms, DRM_AUTH),
267         DRM_IOCTL_DEF(DRM_RADEON_TEXTURE, radeon_cp_texture_kms, DRM_AUTH),
268         DRM_IOCTL_DEF(DRM_RADEON_STIPPLE, radeon_cp_stipple_kms, DRM_AUTH),
269         DRM_IOCTL_DEF(DRM_RADEON_INDIRECT, radeon_cp_indirect_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
270         DRM_IOCTL_DEF(DRM_RADEON_VERTEX2, radeon_cp_vertex2_kms, DRM_AUTH),
271         DRM_IOCTL_DEF(DRM_RADEON_CMDBUF, radeon_cp_cmdbuf_kms, DRM_AUTH),
272         DRM_IOCTL_DEF(DRM_RADEON_GETPARAM, radeon_cp_getparam_kms, DRM_AUTH),
273         DRM_IOCTL_DEF(DRM_RADEON_FLIP, radeon_cp_flip_kms, DRM_AUTH),
274         DRM_IOCTL_DEF(DRM_RADEON_ALLOC, radeon_mem_alloc_kms, DRM_AUTH),
275         DRM_IOCTL_DEF(DRM_RADEON_FREE, radeon_mem_free_kms, DRM_AUTH),
276         DRM_IOCTL_DEF(DRM_RADEON_INIT_HEAP, radeon_mem_init_heap_kms, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
277         DRM_IOCTL_DEF(DRM_RADEON_IRQ_EMIT, radeon_irq_emit_kms, DRM_AUTH),
278         DRM_IOCTL_DEF(DRM_RADEON_IRQ_WAIT, radeon_irq_wait_kms, DRM_AUTH),
279         DRM_IOCTL_DEF(DRM_RADEON_SETPARAM, radeon_cp_setparam_kms, DRM_AUTH),
280         DRM_IOCTL_DEF(DRM_RADEON_SURF_ALLOC, radeon_surface_alloc_kms, DRM_AUTH),
281         DRM_IOCTL_DEF(DRM_RADEON_SURF_FREE, radeon_surface_free_kms, DRM_AUTH),
282         /* KMS */
283         DRM_IOCTL_DEF(DRM_RADEON_GEM_INFO, radeon_gem_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
284         DRM_IOCTL_DEF(DRM_RADEON_GEM_CREATE, radeon_gem_create_ioctl, DRM_AUTH|DRM_UNLOCKED),
285         DRM_IOCTL_DEF(DRM_RADEON_GEM_MMAP, radeon_gem_mmap_ioctl, DRM_AUTH|DRM_UNLOCKED),
286         DRM_IOCTL_DEF(DRM_RADEON_GEM_SET_DOMAIN, radeon_gem_set_domain_ioctl, DRM_AUTH|DRM_UNLOCKED),
287         DRM_IOCTL_DEF(DRM_RADEON_GEM_PREAD, radeon_gem_pread_ioctl, DRM_AUTH|DRM_UNLOCKED),
288         DRM_IOCTL_DEF(DRM_RADEON_GEM_PWRITE, radeon_gem_pwrite_ioctl, DRM_AUTH|DRM_UNLOCKED),
289         DRM_IOCTL_DEF(DRM_RADEON_GEM_WAIT_IDLE, radeon_gem_wait_idle_ioctl, DRM_AUTH|DRM_UNLOCKED),
290         DRM_IOCTL_DEF(DRM_RADEON_CS, radeon_cs_ioctl, DRM_AUTH|DRM_UNLOCKED),
291         DRM_IOCTL_DEF(DRM_RADEON_INFO, radeon_info_ioctl, DRM_AUTH|DRM_UNLOCKED),
292         DRM_IOCTL_DEF(DRM_RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
293         DRM_IOCTL_DEF(DRM_RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
294         DRM_IOCTL_DEF(DRM_RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
295 };
296 int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);