summaryrefslogtreecommitdiff
path: root/linux-core/xgi_drv.c
blob: 13e79169c7984bcbc6ee7c97f97a6fd8e87522bd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357

/****************************************************************************
 * Copyright (C) 2003-2006 by XGI Technology, Taiwan.			
 *																			*
 * All Rights Reserved.														*
 *																			*
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the	
 * "Software"), to deal in the Software without restriction, including	
 * without limitation on the rights to use, copy, modify, merge,	
 * publish, distribute, sublicense, and/or sell copies of the Software,	
 * and to permit persons to whom the Software is furnished to do so,	
 * subject to the following conditions:					
 *																			*
 * The above copyright notice and this permission notice (including the	
 * next paragraph) shall be included in all copies or substantial	
 * portions of the Software.						
 *																			*
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,	
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF	
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND		
 * NON-INFRINGEMENT.  IN NO EVENT SHALL XGI AND/OR			
 * ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,		
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,		
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER			
 * DEALINGS IN THE SOFTWARE.												
 ***************************************************************************/

#include "drmP.h"
#include "drm.h"
#include "xgi_drv.h"
#include "xgi_regs.h"
#include "xgi_misc.h"
#include "xgi_cmdlist.h"

#include "drm_pciids.h"

static struct pci_device_id pciidlist[] = {
	xgi_PCI_IDS
};

static int xgi_bootstrap(DRM_IOCTL_ARGS);

static drm_ioctl_desc_t xgi_ioctls[] = {
	[DRM_IOCTL_NR(DRM_XGI_BOOTSTRAP)] = {xgi_bootstrap, DRM_AUTH},

	[DRM_IOCTL_NR(DRM_XGI_FB_ALLOC)] = {xgi_fb_alloc_ioctl, DRM_AUTH},
	[DRM_IOCTL_NR(DRM_XGI_FB_FREE)] = {xgi_fb_free_ioctl, DRM_AUTH},

	[DRM_IOCTL_NR(DRM_XGI_PCIE_ALLOC)] = {xgi_pcie_alloc_ioctl, DRM_AUTH},
	[DRM_IOCTL_NR(DRM_XGI_PCIE_FREE)] = {xgi_pcie_free_ioctl, DRM_AUTH},

	[DRM_IOCTL_NR(DRM_XGI_GE_RESET)] = {xgi_ge_reset_ioctl, DRM_AUTH},
	[DRM_IOCTL_NR(DRM_XGI_DUMP_REGISTER)] = {xgi_dump_register_ioctl, DRM_AUTH},
	[DRM_IOCTL_NR(DRM_XGI_DEBUG_INFO)] = {xgi_restore_registers_ioctl, DRM_AUTH},
	[DRM_IOCTL_NR(DRM_XGI_SUBMIT_CMDLIST)] = {xgi_submit_cmdlist_ioctl, DRM_AUTH},
	[DRM_IOCTL_NR(DRM_XGI_TEST_RWINKERNEL)] = {xgi_test_rwinkernel_ioctl, DRM_AUTH},
	[DRM_IOCTL_NR(DRM_XGI_STATE_CHANGE)] = {xgi_state_change_ioctl, DRM_AUTH},
};

static const int xgi_max_ioctl = DRM_ARRAY_SIZE(xgi_ioctls);

static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static int xgi_driver_load(struct drm_device *dev, unsigned long flags);
static int xgi_driver_unload(struct drm_device *dev);
static void xgi_driver_preclose(struct drm_device * dev, DRMFILE filp);
static irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS);


static struct drm_driver driver = {
	.driver_features =
		DRIVER_PCI_DMA | DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ |
		DRIVER_IRQ_SHARED | DRIVER_SG,
	.dev_priv_size = sizeof(struct xgi_info),
	.load = xgi_driver_load,
	.unload = xgi_driver_unload,
	.preclose = xgi_driver_preclose,
	.dma_quiescent = NULL,
	.irq_preinstall = NULL,
	.irq_postinstall = NULL,
	.irq_uninstall = NULL,
	.irq_handler = xgi_kern_isr,
	.reclaim_buffers = drm_core_reclaim_buffers,
	.get_map_ofs = drm_core_get_map_ofs,
	.get_reg_ofs = drm_core_get_reg_ofs,
	.ioctls = xgi_ioctls,
	.dma_ioctl = NULL,

	.fops = {
		.owner = THIS_MODULE,
		.open = drm_open,
		.release = drm_release,
		.ioctl = drm_ioctl,
		.mmap = drm_mmap,
		.poll = drm_poll,
		.fasync = drm_fasync,
	},

	.pci_driver = {
		.name = DRIVER_NAME,
		.id_table = pciidlist,
		.probe = probe,
		.remove = __devexit_p(drm_cleanup_pci),
	},

	.name = DRIVER_NAME,
	.desc = DRIVER_DESC,
	.date = DRIVER_DATE,
	.major = DRIVER_MAJOR,
	.minor = DRIVER_MINOR,
	.patchlevel = DRIVER_PATCHLEVEL,

};

static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	return drm_get_dev(pdev, ent, &driver);
}


static int __init xgi_init(void)
{
	driver.num_ioctls = xgi_max_ioctl;
	return drm_init(&driver, pciidlist);
}

static void __exit xgi_exit(void)
{
	drm_exit(&driver);
}

module_init(xgi_init);
module_exit(xgi_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");


void xgi_kern_isr_bh(struct drm_device *dev);

/*
 * verify access to pci config space wasn't disabled behind our back
 * unfortunately, XFree86 enables/disables memory access in pci config space at
 * various times (such as restoring initial pci config space settings during vt
 * switches or when doing mulicard). As a result, all of our register accesses
 * are garbage at this point. add a check to see if access was disabled and
 * reenable any such access.
 */
#define XGI_CHECK_PCI_CONFIG(xgi) \
    xgi_check_pci_config(xgi, __LINE__)

static inline void xgi_check_pci_config(struct xgi_info * info, int line)
{
	u16 cmd;
	bool flag = 0;

	pci_read_config_word(info->dev->pdev, PCI_COMMAND, &cmd);
	if (!(cmd & PCI_COMMAND_MASTER)) {
		DRM_INFO("restoring bus mastering! (%d)\n", line);
		cmd |= PCI_COMMAND_MASTER;
		flag = 1;
	}

	if (!(cmd & PCI_COMMAND_MEMORY)) {
		DRM_INFO("restoring MEM access! (%d)\n", line);
		cmd |= PCI_COMMAND_MEMORY;
		flag = 1;
	}

	if (flag)
		pci_write_config_word(info->dev->pdev, PCI_COMMAND, cmd);
}


int xgi_bootstrap(DRM_IOCTL_ARGS)
{
	DRM_DEVICE;
	struct xgi_info *info = dev->dev_private;
	struct xgi_bootstrap bs;
	int err;


	DRM_COPY_FROM_USER_IOCTL(bs, (struct xgi_bootstrap __user *) data,
				 sizeof(bs));

	if (info->bootstrap_done) {
		return 0;
	}

	err = drm_addmap(dev, info->mmio.base, info->mmio.size,
			 _DRM_REGISTERS, _DRM_KERNEL,
			 &info->mmio_map);
	if (err) {
		DRM_ERROR("Unable to map MMIO region: %d\n", err);
		return err;
	}

	xgi_enable_mmio(info);
	//xgi_enable_ge(info);

	info->fb.size = IN3CFB(info->mmio_map, 0x54) * 8 * 1024 * 1024;

	DRM_INFO("fb   base: 0x%lx, size: 0x%x (probed)\n",
		 (unsigned long) info->fb.base, info->fb.size);


	if ((info->fb.base == 0) || (info->fb.size == 0)) {
		DRM_ERROR("frame buffer appears to be wrong: 0x%lx 0x%x\n",
			  (unsigned long) info->fb.base, info->fb.size);
		return DRM_ERR(EINVAL);
	}


	/* Init the resource manager */
	err = xgi_fb_heap_init(info);
	if (err) {
		DRM_ERROR("xgi_fb_heap_init() failed\n");
		return err;
	}



	info->pcie.size = bs.gart_size * (1024 * 1024);

	/* Init the resource manager */
	err = xgi_pcie_heap_init(info);
	if (err) {
		DRM_ERROR("xgi_pcie_heap_init() failed\n");
		return err;
	}

	/* Alloc 1M bytes for cmdbuffer which is flush2D batch array */
	xgi_cmdlist_initialize(info, 0x100000);

	info->bootstrap_done = 1;
	return 0;
}


void xgi_driver_preclose(struct drm_device * dev, DRMFILE filp)
{
	struct xgi_info * info = dev->dev_private;

	xgi_pcie_free_all(info, filp);
	xgi_fb_free_all(info, filp);
}


/*
 * driver receives an interrupt if someone waiting, then hand it off.
 */
irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS)
{
	struct drm_device *dev = (struct drm_device *) arg;
//	struct xgi_info *info = dev->dev_private;
	u32 need_to_run_bottom_half = 0;

	//DRM_INFO("xgi_kern_isr \n");

	//XGI_CHECK_PCI_CONFIG(info);

	//xgi_dvi_irq_handler(info);

	if (need_to_run_bottom_half) {
		drm_locked_tasklet(dev, xgi_kern_isr_bh);
	}

	return IRQ_HANDLED;
}

void xgi_kern_isr_bh(struct drm_device *dev)
{
	struct xgi_info *info = dev->dev_private;

	DRM_INFO("xgi_kern_isr_bh \n");

	//xgi_dvi_irq_handler(info);

	XGI_CHECK_PCI_CONFIG(info);
}

int xgi_driver_load(struct drm_device *dev, unsigned long flags)
{
	struct xgi_info *info;
	int err;


	info = drm_alloc(sizeof(*info), DRM_MEM_DRIVER);
	if (!info)
		return DRM_ERR(ENOMEM);

	(void) memset(info, 0, sizeof(*info));
	dev->dev_private = info;
	info->dev = dev;

	sema_init(&info->fb_sem, 1);
	sema_init(&info->pcie_sem, 1);

	info->mmio.base = drm_get_resource_start(dev, 1);
	info->mmio.size = drm_get_resource_len(dev, 1);

	DRM_INFO("mmio base: 0x%lx, size: 0x%x\n",
		 (unsigned long) info->mmio.base, info->mmio.size);


	if ((info->mmio.base == 0) || (info->mmio.size == 0)) {
		DRM_ERROR("mmio appears to be wrong: 0x%lx 0x%x\n",
			  (unsigned long) info->mmio.base, info->mmio.size);
		return DRM_ERR(EINVAL);
	}


	info->fb.base = drm_get_resource_start(dev, 0);
	info->fb.size = drm_get_resource_len(dev, 0);

	DRM_INFO("fb   base: 0x%lx, size: 0x%x\n",
		 (unsigned long) info->fb.base, info->fb.size);


	xgi_mem_block_cache = kmem_cache_create("xgi_mem_block",
						sizeof(struct xgi_mem_block),
						0,
						SLAB_HWCACHE_ALIGN,
						NULL, NULL);
	if (xgi_mem_block_cache == NULL) {
		return DRM_ERR(ENOMEM);
	}


	return 0;
}

int xgi_driver_unload(struct drm_device *dev)
{
	struct xgi_info * info = dev->dev_private;

	xgi_cmdlist_cleanup(info);
	if (info->fb_map != NULL) {
		drm_rmmap(info->dev, info->fb_map);
	}

	if (info->mmio_map != NULL) {
		drm_rmmap(info->dev, info->mmio_map);
	}

	xgi_mem_heap_cleanup(&info->fb_heap);
	xgi_mem_heap_cleanup(&info->pcie_heap);
	xgi_pcie_lut_cleanup(info);

	if (xgi_mem_block_cache) {
		kmem_cache_destroy(xgi_mem_block_cache);
		xgi_mem_block_cache = NULL;
	}

	return 0;
}