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 /* WARNING: These defines must be the same as what the Xserver uses.
30  * if you change them, you must change the defines in the Xserver.
31  */
32 
33 #ifndef _VIA_DEFINES_
34 #define _VIA_DEFINES_
35 
36 #include "via_drmclient.h"
37 
38 #define VIA_NR_SAREA_CLIPRECTS		8
39 #define VIA_NR_XVMC_PORTS               10
40 #define VIA_NR_XVMC_LOCKS               5
41 #define VIA_MAX_CACHELINE_SIZE          64
42 #define XVMCLOCKPTR(saPriv,lockNo)					\
43 	((__volatile__ struct drm_hw_lock *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
44 				      (VIA_MAX_CACHELINE_SIZE - 1)) &	\
45 				     ~(VIA_MAX_CACHELINE_SIZE - 1)) +	\
46 				    VIA_MAX_CACHELINE_SIZE*(lockNo)))
47 
48 /* Each region is a minimum of 64k, and there are at most 64 of them.
49  */
50 #define VIA_NR_TEX_REGIONS 64
51 #define VIA_LOG_MIN_TEX_REGION_SIZE 16
52 #endif
53 
54 #define VIA_UPLOAD_TEX0IMAGE  0x1	/* handled clientside */
55 #define VIA_UPLOAD_TEX1IMAGE  0x2	/* handled clientside */
56 #define VIA_UPLOAD_CTX        0x4
57 #define VIA_UPLOAD_BUFFERS    0x8
58 #define VIA_UPLOAD_TEX0       0x10
59 #define VIA_UPLOAD_TEX1       0x20
60 #define VIA_UPLOAD_CLIPRECTS  0x40
61 #define VIA_UPLOAD_ALL        0xff
62 
63 /* VIA specific ioctls */
64 #define DRM_VIA_ALLOCMEM	0x00
65 #define DRM_VIA_FREEMEM	        0x01
66 #define DRM_VIA_AGP_INIT	0x02
67 #define DRM_VIA_FB_INIT	        0x03
68 #define DRM_VIA_MAP_INIT	0x04
69 #define DRM_VIA_DEC_FUTEX       0x05
70 #define NOT_USED
71 #define DRM_VIA_DMA_INIT	0x07
72 #define DRM_VIA_CMDBUFFER	0x08
73 #define DRM_VIA_FLUSH	        0x09
74 #define DRM_VIA_PCICMD	        0x0a
75 #define DRM_VIA_CMDBUF_SIZE	0x0b
76 #define NOT_USED
77 #define DRM_VIA_WAIT_IRQ        0x0d
78 #define DRM_VIA_DMA_BLIT        0x0e
79 #define DRM_VIA_BLIT_SYNC       0x0f
80 
81 #define DRM_IOCTL_VIA_ALLOCMEM	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_ALLOCMEM, drm_via_mem_t)
82 #define DRM_IOCTL_VIA_FREEMEM	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_FREEMEM, drm_via_mem_t)
83 #define DRM_IOCTL_VIA_AGP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_AGP_INIT, drm_via_agp_t)
84 #define DRM_IOCTL_VIA_FB_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_FB_INIT, drm_via_fb_t)
85 #define DRM_IOCTL_VIA_MAP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_MAP_INIT, drm_via_init_t)
86 #define DRM_IOCTL_VIA_DEC_FUTEX   DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_DEC_FUTEX, drm_via_futex_t)
87 #define DRM_IOCTL_VIA_DMA_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_DMA_INIT, drm_via_dma_init_t)
88 #define DRM_IOCTL_VIA_CMDBUFFER	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_CMDBUFFER, drm_via_cmdbuffer_t)
89 #define DRM_IOCTL_VIA_FLUSH	  DRM_IO(  DRM_COMMAND_BASE + DRM_VIA_FLUSH)
90 #define DRM_IOCTL_VIA_PCICMD	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_PCICMD, drm_via_cmdbuffer_t)
91 #define DRM_IOCTL_VIA_CMDBUF_SIZE DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_CMDBUF_SIZE, \
92 					    drm_via_cmdbuf_size_t)
93 #define DRM_IOCTL_VIA_WAIT_IRQ    DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_WAIT_IRQ, drm_via_irqwait_t)
94 #define DRM_IOCTL_VIA_DMA_BLIT    DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_DMA_BLIT, drm_via_dmablit_t)
95 #define DRM_IOCTL_VIA_BLIT_SYNC   DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_BLIT_SYNC, drm_via_blitsync_t)
96 
97 /* Indices into buf.Setup where various bits of state are mirrored per
98  * context and per buffer.  These can be fired at the card as a unit,
99  * or in a piecewise fashion as required.
100  */
101 
102 #define VIA_TEX_SETUP_SIZE 8
103 
104 /* Flags for clear ioctl
105  */
106 #define VIA_FRONT   0x1
107 #define VIA_BACK    0x2
108 #define VIA_DEPTH   0x4
109 #define VIA_STENCIL 0x8
110 #define VIA_MEM_VIDEO   0	/* matches drm constant */
111 #define VIA_MEM_AGP     1	/* matches drm constant */
112 #define VIA_MEM_SYSTEM  2
113 #define VIA_MEM_MIXED   3
114 #define VIA_MEM_UNKNOWN 4
115 
116 typedef struct {
117 	__u32 offset;
118 	__u32 size;
119 } drm_via_agp_t;
120 
121 typedef struct {
122 	__u32 offset;
123 	__u32 size;
124 } drm_via_fb_t;
125 
126 typedef struct {
127 	__u32 context;
128 	__u32 type;
129 	__u32 size;
130 	unsigned long index;
131 	unsigned long offset;
132 } drm_via_mem_t;
133 
134 typedef struct _drm_via_init {
135 	enum {
136 		VIA_INIT_MAP = 0x01,
137 		VIA_CLEANUP_MAP = 0x02
138 	} func;
139 
140 	unsigned long sarea_priv_offset;
141 	unsigned long fb_offset;
142 	unsigned long mmio_offset;
143 	unsigned long agpAddr;
144 } drm_via_init_t;
145 
146 typedef struct _drm_via_futex {
147 	enum {
148 		VIA_FUTEX_WAIT = 0x00,
149 		VIA_FUTEX_WAKE = 0X01
150 	} func;
151 	__u32 ms;
152 	__u32 lock;
153 	__u32 val;
154 } drm_via_futex_t;
155 
156 typedef struct _drm_via_dma_init {
157 	enum {
158 		VIA_INIT_DMA = 0x01,
159 		VIA_CLEANUP_DMA = 0x02,
160 		VIA_DMA_INITIALIZED = 0x03
161 	} func;
162 
163 	unsigned long offset;
164 	unsigned long size;
165 	unsigned long reg_pause_addr;
166 } drm_via_dma_init_t;
167 
168 typedef struct _drm_via_cmdbuffer {
169 	char *buf;
170 	unsigned long size;
171 } drm_via_cmdbuffer_t;
172 
173 /* Warning: If you change the SAREA structure you must change the Xserver
174  * structure as well */
175 
176 typedef struct _drm_via_tex_region {
177 	unsigned char next, prev;	/* indices to form a circular LRU  */
178 	unsigned char inUse;	/* owned by a client, or free? */
179 	int age;		/* tracked by clients to update local LRU's */
180 } drm_via_tex_region_t;
181 
182 typedef struct _drm_via_sarea {
183 	unsigned int dirty;
184 	unsigned int nbox;
185 	struct drm_clip_rect boxes[VIA_NR_SAREA_CLIPRECTS];
186 	drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
187 	int texAge;		/* last time texture was uploaded */
188 	int ctxOwner;		/* last context to upload state */
189 	int vertexPrim;
190 
191 	/*
192 	 * Below is for XvMC.
193 	 * We want the lock integers alone on, and aligned to, a cache line.
194 	 * Therefore this somewhat strange construct.
195 	 */
196 
197 	char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];
198 
199 	unsigned int XvMCDisplaying[VIA_NR_XVMC_PORTS];
200 	unsigned int XvMCSubPicOn[VIA_NR_XVMC_PORTS];
201 	unsigned int XvMCCtxNoGrabbed;	/* Last context to hold decoder */
202 
203 	/* Used by the 3d driver only at this point, for pageflipping:
204 	 */
205 	unsigned int pfCurrentOffset;
206 } drm_via_sarea_t;
207 
208 typedef struct _drm_via_cmdbuf_size {
209 	enum {
210 		VIA_CMDBUF_SPACE = 0x01,
211 		VIA_CMDBUF_LAG = 0x02
212 	} func;
213 	int wait;
214 	__u32 size;
215 } drm_via_cmdbuf_size_t;
216 
217 typedef enum {
218 	VIA_IRQ_ABSOLUTE = 0x0,
219 	VIA_IRQ_RELATIVE = 0x1,
220 	VIA_IRQ_SIGNAL = 0x10000000,
221 	VIA_IRQ_FORCE_SEQUENCE = 0x20000000
222 } via_irq_seq_type_t;
223 
224 #define VIA_IRQ_FLAGS_MASK 0xF0000000
225 
226 enum drm_via_irqs {
227 	drm_via_irq_hqv0 = 0,
228 	drm_via_irq_hqv1,
229 	drm_via_irq_dma0_dd,
230 	drm_via_irq_dma0_td,
231 	drm_via_irq_dma1_dd,
232 	drm_via_irq_dma1_td,
233 	drm_via_irq_num
234 };
235 
236 struct drm_via_wait_irq_request {
237 	unsigned irq;
238 	via_irq_seq_type_t type;
239 	__u32 sequence;
240 	__u32 signal;
241 };
242 
243 typedef union drm_via_irqwait {
244 	struct drm_via_wait_irq_request request;
245 	struct drm_wait_vblank_reply reply;
246 } drm_via_irqwait_t;
247 
248 typedef struct drm_via_blitsync {
249 	__u32 sync_handle;
250 	unsigned engine;
251 } drm_via_blitsync_t;
252 
253 /* - * Below,"flags" is currently unused but will be used for possible future
254  * extensions like kernel space bounce buffers for bad alignments and
255  * blit engine busy-wait polling for better latency in the absence of
256  * interrupts.
257  */
258 
259 typedef struct drm_via_dmablit {
260 	__u32 num_lines;
261 	__u32 line_length;
262 
263 	__u32 fb_addr;
264 	__u32 fb_stride;
265 
266 	unsigned char *mem_addr;
267 	__u32 mem_stride;
268 
269 	__u32 flags;
270 	int to_fb;
271 
272 	drm_via_blitsync_t sync;
273 } drm_via_dmablit_t;
274 
275 #endif				/* _VIA_DRM_H_ */
276