aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/ice4100/sgx535/pvr_drm.c
blob: c89ef52cb8cacc0b9fd5f8b0ea1a8b3abdc6ab0f (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
/**********************************************************************
 *
 * Copyright (c) 2010 Intel Corporation.
 * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful but, except
 * as otherwise stated in writing, without any warranty; without even the
 * implied warranty of merchantability or fitness for a particular purpose.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 * Contact Information:
 * Imagination Technologies Ltd. <gpl-support@imgtec.com>
 * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
 *
 ******************************************************************************/

#if defined(SUPPORT_DRI_DRM)

#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
#endif

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/fs.h>
#include <linux/proc_fs.h>
#include <asm/ioctl.h>
#include <drm/drmP.h>
#include <drm/drm.h>


#include "services.h"
#include "kerneldisplay.h"
#include "kernelbuffer.h"
#include "syscommon.h"
#include "pvrmmap.h"
#include "mm.h"
#include "mmap.h"
#include "pvr_debug.h"
#include "srvkm.h"
#include "perproc.h"
#include "handle.h"
#include "pvr_bridge_km.h"
#include "pvr_bridge.h"
#include "proc.h"
#include "pvrmodule.h"
#include "pvrversion.h"
#include "lock.h"
#include "linkage.h"
#include "pvr_drm.h"

#define PVR_DRM_NAME	PVRSRV_MODNAME
#define PVR_DRM_DESC	"Imagination Technologies PVR DRM"

#define PVR_PCI_IDS \
	{SYS_SGX_DEV_VENDOR_ID, SYS_SGX_DEV_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \
	{0, 0, 0}

struct pci_dev *gpsPVRLDMDev;
struct drm_device *gpsPVRDRMDev;

#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,24))
#error "Linux kernel version 2.6.25 or later required for PVR DRM support"
#endif

#define PVR_DRM_FILE struct drm_file *

#if !defined(SUPPORT_DRI_DRM_EXT)
static struct pci_device_id asPciIdList[] = {
	PVR_PCI_IDS
};
#endif

static int PVRSRVDrmLoad(struct drm_device *dev, unsigned long flags)
{
	int iRes;

	PVR_TRACE(("PVRSRVDrmLoad"));

	gpsPVRDRMDev = dev;
	gpsPVRLDMDev = dev->pdev;

#if defined(PDUMP)
	iRes = dbgdrv_init();
	if (iRes != 0) {
		return iRes;
	}
#endif

	iRes = PVRCore_Init();
	if (iRes != 0) {
		goto exit_dbgdrv_cleanup;
	}
#if defined(DISPLAY_CONTROLLER)
	iRes = PVR_DRM_MAKENAME(DISPLAY_CONTROLLER, _Init) (dev);
	if (iRes != 0) {
		goto exit_pvrcore_cleanup;
	}
#endif
	return 0;

#if defined(DISPLAY_CONTROLLER)
exit_pvrcore_cleanup:
	PVRCore_Cleanup();
#endif
exit_dbgdrv_cleanup:
#if defined(PDUMP)
	dbgdrv_cleanup();
#endif
	return iRes;
}

static int PVRSRVDrmUnload(struct drm_device *dev)
{
	PVR_TRACE(("PVRSRVDrmUnload"));

#if defined(DISPLAY_CONTROLLER)
	PVR_DRM_MAKENAME(DISPLAY_CONTROLLER, _Cleanup) (dev);
#endif

	PVRCore_Cleanup();

#if defined(PDUMP)
	dbgdrv_cleanup();
#endif

	return 0;
}

static int PVRSRVDrmOpen(struct drm_device *dev, struct drm_file *file)
{
	return PVRSRVOpen(dev, file);
}

static void PVRSRVDrmPostClose(struct drm_device *dev, struct drm_file *file)
{
	PVRSRVRelease(dev, file);
}

static int
PVRDRMIsMaster(struct drm_device *dev, void *arg, struct drm_file *pFile)
{
	return 0;
}

#if defined(SUPPORT_DRI_DRM_EXT)
int
PVRDRM_Dummy_ioctl(struct drm_device *dev, void *arg, struct drm_file *pFile)
{
	return 0;
}
#endif

static int
PVRDRMPCIBusIDField(struct drm_device *dev, u32 * pui32Field, u32 ui32FieldType)
{
	struct pci_dev *psPCIDev = (struct pci_dev *)dev->pdev;

	switch (ui32FieldType) {
	case PVR_DRM_PCI_DOMAIN:
		*pui32Field = pci_domain_nr(psPCIDev->bus);
		break;

	case PVR_DRM_PCI_BUS:
		*pui32Field = psPCIDev->bus->number;
		break;

	case PVR_DRM_PCI_DEV:
		*pui32Field = PCI_SLOT(psPCIDev->devfn);
		break;

	case PVR_DRM_PCI_FUNC:
		*pui32Field = PCI_FUNC(psPCIDev->devfn);
		break;

	default:
		return -EFAULT;
	}

	return 0;
}

static int
PVRDRMUnprivCmd(struct drm_device *dev, void *arg, struct drm_file *pFile)
{
	u32 *pui32Args = (u32 *) arg;
	u32 ui32Cmd = pui32Args[0];
	u32 ui32Arg1 = pui32Args[1];
	u32 *pui32OutArg = (u32 *) arg;
	s32 ret = 0;

	mutex_lock(&gPVRSRVLock);

	switch (ui32Cmd) {
	case PVR_DRM_UNPRIV_INIT_SUCCESFUL:
		*pui32OutArg =
		    PVRSRVGetInitServerState(PVRSRV_INIT_SERVER_SUCCESSFUL) ? 1
		    : 0;
		break;

	case PVR_DRM_UNPRIV_BUSID_TYPE:
		*pui32OutArg = PVR_DRM_BUS_TYPE_PCI;
		break;

	case PVR_DRM_UNPRIV_BUSID_FIELD:
		ret = PVRDRMPCIBusIDField(dev, pui32OutArg, ui32Arg1);

	default:
		ret = -EFAULT;
	}

	mutex_unlock(&gPVRSRVLock);

	return ret;
}

#define	PVR_DRM_FOPS_IOCTL	.unlocked_ioctl

struct drm_ioctl_desc sPVRDrmIoctls[] = {
	DRM_IOCTL_DEF_DRV(PVR_SRVKM, PVRSRV_BridgeDispatchKM,
		      DRM_UNLOCKED),
	DRM_IOCTL_DEF_DRV(PVR_IS_MASTER, PVRDRMIsMaster,
		      DRM_MASTER | DRM_UNLOCKED),
	DRM_IOCTL_DEF_DRV(PVR_UNPRIV, PVRDRMUnprivCmd, DRM_UNLOCKED),
#if defined(PDUMP)
	DRM_IOCTL_DEF_DRV(PVR_DBGDRV, dbgdrv_ioctl, DRM_UNLOCKED),
#endif
};

static int pvr_max_ioctl = DRM_ARRAY_SIZE(sPVRDrmIoctls);

static struct drm_driver sPVRDrmDriver = {
	.driver_features = 0,
	.dev_priv_size = 0,
	.load = PVRSRVDrmLoad,
	.unload = PVRSRVDrmUnload,
	.open = PVRSRVDrmOpen,
	.postclose = PVRSRVDrmPostClose,
	.suspend = PVRSRVDriverSuspend,
	.resume = PVRSRVDriverResume,
	.get_map_ofs = drm_core_get_map_ofs,
	.get_reg_ofs = drm_core_get_reg_ofs,
	.ioctls = sPVRDrmIoctls,
	.fops = {
		 .owner = THIS_MODULE,
		 .open = drm_open,
		 .release = drm_release,
		 PVR_DRM_FOPS_IOCTL = drm_ioctl,
		 .mmap = PVRMMap,
		 .poll = drm_poll,
		 .fasync = drm_fasync,
		 },
	.pci_driver = {
		       .name = PVR_DRM_NAME,
		       .id_table = asPciIdList,
		       },

	.name = PVR_DRM_NAME,
	.desc = PVR_DRM_DESC,
	.date = PVR_BUILD_DATE,
	.major = PVRVERSION_MAJ,
	.minor = PVRVERSION_MIN,
	.patchlevel = PVRVERSION_BUILD,
};

static int __init PVRSRVDrmInit(void)
{
	int iRes;
	sPVRDrmDriver.num_ioctls = pvr_max_ioctl;

	PVRDPFInit();

	iRes = drm_init(&sPVRDrmDriver);

	return iRes;
}

static void __exit PVRSRVDrmExit(void)
{
	drm_exit(&sPVRDrmDriver);
}

module_init(PVRSRVDrmInit);
module_exit(PVRSRVDrmExit);

#endif