1 /*
2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the
13  * next paragraph) shall be included in all copies or substantial portions
14  * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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 OTHER
22  * DEALINGS IN THE SOFTWARE.
23  */
24 #ifndef _VIA_DRM_H_
25 #define _VIA_DRM_H_
26 
27 #include "drm.h"
28 
29 #if defined(__cplusplus)
30 extern "C" {
31 #endif
32 
33 /* WARNING: These defines must be the same as what the Xserver uses.
34  * if you change them, you must change the defines in the Xserver.
35  */
36 
37 #ifndef _VIA_DEFINES_
38 #define _VIA_DEFINES_
39 
40 
41 #define VIA_NR_SAREA_CLIPRECTS		8
42 #define VIA_NR_XVMC_PORTS               10
43 #define VIA_NR_XVMC_LOCKS               5
44 #define VIA_MAX_CACHELINE_SIZE          64
45 #define XVMCLOCKPTR(saPriv,lockNo)					\
46 	((volatile struct drm_hw_lock *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
47 				      (VIA_MAX_CACHELINE_SIZE - 1)) &	\
48 				     ~(VIA_MAX_CACHELINE_SIZE - 1)) +	\
49 				    VIA_MAX_CACHELINE_SIZE*(lockNo)))
50 
51 /* Each region is a minimum of 64k, and there are at most 64 of them.
52  */
53 #define VIA_NR_TEX_REGIONS 64
54 #define VIA_LOG_MIN_TEX_REGION_SIZE 16
55 #endif
56 
57 #define VIA_UPLOAD_TEX0IMAGE  0x1	/* handled clientside */
58 #define VIA_UPLOAD_TEX1IMAGE  0x2	/* handled clientside */
59 #define VIA_UPLOAD_CTX        0x4
60 #define VIA_UPLOAD_BUFFERS    0x8
61 #define VIA_UPLOAD_TEX0       0x10
62 #define VIA_UPLOAD_TEX1       0x20
63 #define VIA_UPLOAD_CLIPRECTS  0x40
64 #define VIA_UPLOAD_ALL        0xff
65 
66 /* VIA specific ioctls */
67 #define DRM_VIA_ALLOCMEM	0x00
68 #define DRM_VIA_FREEMEM	        0x01
69 #define DRM_VIA_AGP_INIT	0x02
70 #define DRM_VIA_FB_INIT	        0x03
71 #define DRM_VIA_MAP_INIT	0x04
72 #define DRM_VIA_DEC_FUTEX       0x05
73 #define NOT_USED
74 #define DRM_VIA_DMA_INIT	0x07
75 #define DRM_VIA_CMDBUFFER	0x08
76 #define DRM_VIA_FLUSH	        0x09
77 #define DRM_VIA_PCICMD	        0x0a
78 #define DRM_VIA_CMDBUF_SIZE	0x0b
79 #define NOT_USED
80 #define DRM_VIA_WAIT_IRQ        0x0d
81 #define DRM_VIA_DMA_BLIT        0x0e
82 #define DRM_VIA_BLIT_SYNC       0x0f
83 
84 #define DRM_IOCTL_VIA_ALLOCMEM	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_ALLOCMEM, drm_via_mem_t)
85 #define DRM_IOCTL_VIA_FREEMEM	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_FREEMEM, drm_via_mem_t)
86 #define DRM_IOCTL_VIA_AGP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_AGP_INIT, drm_via_agp_t)
87 #define DRM_IOCTL_VIA_FB_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_FB_INIT, drm_via_fb_t)
88 #define DRM_IOCTL_VIA_MAP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_MAP_INIT, drm_via_init_t)
89 #define DRM_IOCTL_VIA_DEC_FUTEX   DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_DEC_FUTEX, drm_via_futex_t)
90 #define DRM_IOCTL_VIA_DMA_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_DMA_INIT, drm_via_dma_init_t)
91 #define DRM_IOCTL_VIA_CMDBUFFER	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_CMDBUFFER, drm_via_cmdbuffer_t)
92 #define DRM_IOCTL_VIA_FLUSH	  DRM_IO(  DRM_COMMAND_BASE + DRM_VIA_FLUSH)
93 #define DRM_IOCTL_VIA_PCICMD	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_PCICMD, drm_via_cmdbuffer_t)
94 #define DRM_IOCTL_VIA_CMDBUF_SIZE DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_CMDBUF_SIZE, \
95 					    drm_via_cmdbuf_size_t)
96 #define DRM_IOCTL_VIA_WAIT_IRQ    DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_WAIT_IRQ, drm_via_irqwait_t)
97 #define DRM_IOCTL_VIA_DMA_BLIT    DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_DMA_BLIT, drm_via_dmablit_t)
98 #define DRM_IOCTL_VIA_BLIT_SYNC   DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_BLIT_SYNC, drm_via_blitsync_t)
99 
100 /* Indices into buf.Setup where various bits of state are mirrored per
101  * context and per buffer.  These can be fired at the card as a unit,
102  * or in a piecewise fashion as required.
103  */
104 
105 #define VIA_TEX_SETUP_SIZE 8
106 
107 /* Flags for clear ioctl
108  */
109 #define VIA_FRONT   0x1
110 #define VIA_BACK    0x2
111 #define VIA_DEPTH   0x4
112 #define VIA_STENCIL 0x8
113 #define VIA_MEM_VIDEO   0	/* matches drm constant */
114 #define VIA_MEM_AGP     1	/* matches drm constant */
115 #define VIA_MEM_SYSTEM  2
116 #define VIA_MEM_MIXED   3
117 #define VIA_MEM_UNKNOWN 4
118 
119 typedef struct {
120 	__u32 offset;
121 	__u32 size;
122 } drm_via_agp_t;
123 
124 typedef struct {
125 	__u32 offset;
126 	__u32 size;
127 } drm_via_fb_t;
128 
129 typedef struct {
130 	__u32 context;
131 	__u32 type;
132 	__u32 size;
133 	unsigned long index;
134 	unsigned long offset;
135 } drm_via_mem_t;
136 
137 typedef struct _drm_via_init {
138 	enum {
139 		VIA_INIT_MAP = 0x01,
140 		VIA_CLEANUP_MAP = 0x02
141 	} func;
142 
143 	unsigned long sarea_priv_offset;
144 	unsigned long fb_offset;
145 	unsigned long mmio_offset;
146 	unsigned long agpAddr;
147 } drm_via_init_t;
148 
149 typedef struct _drm_via_futex {
150 	enum {
151 		VIA_FUTEX_WAIT = 0x00,
152 		VIA_FUTEX_WAKE = 0X01
153 	} func;
154 	__u32 ms;
155 	__u32 lock;
156 	__u32 val;
157 } drm_via_futex_t;
158 
159 typedef struct _drm_via_dma_init {
160 	enum {
161 		VIA_INIT_DMA = 0x01,
162 		VIA_CLEANUP_DMA = 0x02,
163 		VIA_DMA_INITIALIZED = 0x03
164 	} func;
165 
166 	unsigned long offset;
167 	unsigned long size;
168 	unsigned long reg_pause_addr;
169 } drm_via_dma_init_t;
170 
171 typedef struct _drm_via_cmdbuffer {
172 	char __user *buf;
173 	unsigned long size;
174 } drm_via_cmdbuffer_t;
175 
176 /* Warning: If you change the SAREA structure you must change the Xserver
177  * structure as well */
178 
179 typedef struct _drm_via_tex_region {
180 	unsigned char next, prev;	/* indices to form a circular LRU  */
181 	unsigned char inUse;	/* owned by a client, or free? */
182 	int age;		/* tracked by clients to update local LRU's */
183 } drm_via_tex_region_t;
184 
185 typedef struct _drm_via_sarea {
186 	unsigned int dirty;
187 	unsigned int nbox;
188 	struct drm_clip_rect boxes[VIA_NR_SAREA_CLIPRECTS];
189 	drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
190 	int texAge;		/* last time texture was uploaded */
191 	int ctxOwner;		/* last context to upload state */
192 	int vertexPrim;
193 
194 	/*
195 	 * Below is for XvMC.
196 	 * We want the lock integers alone on, and aligned to, a cache line.
197 	 * Therefore this somewhat strange construct.
198 	 */
199 
200 	char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];
201 
202 	unsigned int XvMCDisplaying[VIA_NR_XVMC_PORTS];
203 	unsigned int XvMCSubPicOn[VIA_NR_XVMC_PORTS];
204 	unsigned int XvMCCtxNoGrabbed;	/* Last context to hold decoder */
205 
206 	/* Used by the 3d driver only at this point, for pageflipping:
207 	 */
208 	unsigned int pfCurrentOffset;
209 } drm_via_sarea_t;
210 
211 typedef struct _drm_via_cmdbuf_size {
212 	enum {
213 		VIA_CMDBUF_SPACE = 0x01,
214 		VIA_CMDBUF_LAG = 0x02
215 	} func;
216 	int wait;
217 	__u32 size;
218 } drm_via_cmdbuf_size_t;
219 
220 typedef enum {
221 	VIA_IRQ_ABSOLUTE = 0x0,
222 	VIA_IRQ_RELATIVE = 0x1,
223 	VIA_IRQ_SIGNAL = 0x10000000,
224 	VIA_IRQ_FORCE_SEQUENCE = 0x20000000
225 } via_irq_seq_type_t;
226 
227 #define VIA_IRQ_FLAGS_MASK 0xF0000000
228 
229 enum drm_via_irqs {
230 	drm_via_irq_hqv0 = 0,
231 	drm_via_irq_hqv1,
232 	drm_via_irq_dma0_dd,
233 	drm_via_irq_dma0_td,
234 	drm_via_irq_dma1_dd,
235 	drm_via_irq_dma1_td,
236 	drm_via_irq_num
237 };
238 
239 struct drm_via_wait_irq_request {
240 	unsigned irq;
241 	via_irq_seq_type_t type;
242 	__u32 sequence;
243 	__u32 signal;
244 };
245 
246 typedef union drm_via_irqwait {
247 	struct drm_via_wait_irq_request request;
248 	struct drm_wait_vblank_reply reply;
249 } drm_via_irqwait_t;
250 
251 typedef struct drm_via_blitsync {
252 	__u32 sync_handle;
253 	unsigned engine;
254 } drm_via_blitsync_t;
255 
256 /* - * Below,"flags" is currently unused but will be used for possible future
257  * extensions like kernel space bounce buffers for bad alignments and
258  * blit engine busy-wait polling for better latency in the absence of
259  * interrupts.
260  */
261 
262 typedef struct drm_via_dmablit {
263 	__u32 num_lines;
264 	__u32 line_length;
265 
266 	__u32 fb_addr;
267 	__u32 fb_stride;
268 
269 	unsigned char *mem_addr;
270 	__u32 mem_stride;
271 
272 	__u32 flags;
273 	int to_fb;
274 
275 	drm_via_blitsync_t sync;
276 } drm_via_dmablit_t;
277 
278 #if defined(__cplusplus)
279 }
280 #endif
281 
282 #endif				/* _VIA_DRM_H_ */
283